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Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Recirculating electric air filter  

DOE Patents [OSTI]

An electric air filter cartridge has a cylindrical inner high voltage electrode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

Bergman, W.

1985-01-09T23:59:59.000Z

2

High Efficiency Particulate Air Filters  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

High Efficiency Particulate Air (HEPA) Filters High Efficiency Particulate Air (HEPA) Filters Home Standards DOE Workshops Nuclear Air Cleaning Conference Proceedings Qualified Filter List News Items Related Sites HEPA Related Lessons Learned Contact Us HSS Logo High Efficiency Particulate Air Filters The HEPA Filter web site provides a forum for informing and reporting department-wide activities related to filtration and ventilation issues with special reference to the High Efficiency Particulate Air (HEPA) Filters' use, inspection, and testing. This site contains essentials of DOE HEPA filter test program, procedures, requirements and quality assurance aspects applicable to HEPA filters used in DOE facilities. This site contains information about the DOE-accepted Filter Test Facility and its management, operation and quality assuranceprogram.

3

Carbon fiber composite molecular sieve electrically regenerable air filter media  

DOE Patents [OSTI]

An electrically regenerable gas filter system includes a carbon fiber composite molecular sieve (CFCMS) filter medium. After a separate medium-efficiency pre-filter removes particulate from the supply air stream, the CFCMS filter sorbs gaseous air pollutants before the air is recirculated to the space. When saturated, the CFCMS media is regenerated utilizing a low-voltage current that is caused to pass through the filter medium. 3 figs.

Wilson, K.A.; Burchell, T.D.; Judkins, R.R.

1998-10-27T23:59:59.000Z

4

Carbon fiber composite molecular sieve electrically regenerable air filter media  

DOE Patents [OSTI]

An electrically regenerable gas filter system includes a carbon fiber composite molecular sieve (CFCMS) filter medium. After a separate medium-efficiency pre-filter removes particulate from the supply airstream, the CFCMS filter sorbs gaseous air pollutants before the air is recirculated to the space. When saturated, the CFCMS media is regenerated utilizing a low-voltage current that is caused to pass through the filter medium.

Wilson, Kirk A. (Knoxville, TN); Burchell, Timothy D. (Oak Ridge, TN); Judkins, Roddie R. (Knoxville, TN)

1998-01-01T23:59:59.000Z

5

E-Print Network 3.0 - air filters Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: , water treatment equipment, elevators (electric and hydraulic), sewer lift pumps, filter servicing in air... lift pumps, filter servicing in air-handling units and...

6

Model-Based Commissioning for Filters in Room Air Conditioners  

E-Print Network [OSTI]

This paper proposes a model that can estimate filter resistance. Two sorts of value are used as inputs to estimate filter resistance. One is the power consumed by the fan in the indoor unit and the other is the thermal performance. For the room air...

Wang, F.; Yoshida, H.; Kitagawa, H.; Matsumoto, K.; Goto, K.

2004-01-01T23:59:59.000Z

7

Biomass Control in Waste Air Biotrickling Filters by Protozoan Predation  

E-Print Network [OSTI]

Biomass Control in Waste Air Biotrickling Filters by Protozoan Predation Huub H. J. Cox, Marc A as a means of biomass control. Wet biomass for- mation in 23.6-L reactors over a 77-day period was reduced in the biotrickling filter enriched with protozoa. The lower rate of biomass accumulation after the addi- tion

8

Air filtration: Choosing the right filter class for HVAC systems  

Science Journals Connector (OSTI)

As anyone who works with air filtration knows, getting the best from a system is about more than choosing efficient media and correct installation. Thomas Carlson of Vokes Air explains the importance of using and selecting the right filter class for a typical HVAC system.

Thomas Carlson

2008-01-01T23:59:59.000Z

9

RAPID SEPARATION METHOD FOR ACTINIDES IN EMERGENCY AIR FILTER SAMPLES  

SciTech Connect (OSTI)

A new rapid method for the determination of actinides and strontium in air filter samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used in emergency response situations. The actinides and strontium in air filter method utilizes a rapid acid digestion method and a streamlined column separation process with stacked TEVA, TRU and Sr Resin cartridges. Vacuum box technology and rapid flow rates are used to reduce analytical time. Alpha emitters are prepared using cerium fluoride microprecipitation for counting by alpha spectrometry. The purified {sup 90}Sr fractions are mounted directly on planchets and counted by gas flow proportional counting. The method showed high chemical recoveries and effective removal of interferences. This new procedure was applied to emergency air filter samples received in the NRIP Emergency Response exercise administered by the National Institute for Standards and Technology (NIST) in April, 2009. The actinide and {sup 90}Sr in air filter results were reported in {approx}4 hours with excellent quality.

Maxwell, S.; Noyes, G.; Culligan, B.

2010-02-03T23:59:59.000Z

10

E-Print Network 3.0 - air filter condition Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

fans... , water treatment equipment, elevators (electric and hydraulic), sewer lift pumps, filter servicing in air... : Use of mechanical equipment such as refrigeration, air...

11

STATE OF CALIFORNIA NATURAL RESOURCES AGENCY ARNOLD SCHWARZENEGGER, Governor Attention: Air Filter product manufacturers  

E-Print Network [OSTI]

Commission intends to maintain a simple online database of air filter product performance information. We link below) for your California-market filter products to the Energy Commission. Air be utilized to demonstrate compliance with the air filter product performance requirements in ASHRAE 62

12

Energy efficient indoor VOC air cleaning with activated carbon fiber (ACF) filters Meera A. Sidheswaran a  

E-Print Network [OSTI]

carbon fiber (ACF) filters for air cleaning in HVAC systems. The parallel aims for the air cleaningEnergy efficient indoor VOC air cleaning with activated carbon fiber (ACF) filters Meera A. Velocities through the ACF media were typical of those in normal particle filter systems (w0.5 m sÃ?1

13

Capability of air filters to retain airborne bacteria and molds in heating, ventilating and air-conditioning (HVAC) systems  

Science Journals Connector (OSTI)

The capability of air filters (filterclass: F6, F7) to retain airborne outdoor microorganisms was examined in field experiments in two heating, ventilating and air conditioning (HVAC) systems. At the beginning of the 15-month investigation period, the first filter stages of both HVAC systems were equipped with new unused air filters. The number of airborne bacteria and molds before and behind the filters were determined simultaneously in 14 days-intervals using 6-stage Andersen cascade impactors. Under relatively dry ( 12 °C) outdoor air conditions air filters led to a marked reduction of airborne microorganism concentrations (bacteria by approximately 70 % and molds by > 80 %). However, during long periods of high relative humidity (> 80 % R. H.) a proliferation of bacteria on air filters with subsequent release into the filtered air occured. These microorganisms were mainly smaller than 1.1 ?m therefore being part of the respirable fraction. The results showed furthermore that one possibility to avoid microbial proliferation is to limit the relative humidity in the area of the air filters to 80 % R. H. (mean of 3 days), e. g. by using preheaters in front of air filters in HVAC-systems.

Martin Möritz; Hans Peters; Bettina Nipko; Hennin Rüden

2001-01-01T23:59:59.000Z

14

Are Ventilation Filters Degrading Indoor Air Quality in California Classrooms?  

E-Print Network [OSTI]

2007) “Ozone Removal by HVAC Filters. ” Atmos.  Environ.  HVAC filters  ozone deposition in  HVAC filters and byproduct formation, 

Fisk, Michael G. Apte and William J.

2009-01-01T23:59:59.000Z

15

E-Print Network 3.0 - air intake filter Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

results for: air intake filter Page: << < 1 2 3 4 5 > >> 1 Fault Tolerant Oxygen Control of a Diesel Engine Air System Summary: which is the oxygen concentration in the...

16

Are Ventilation Filters Degrading Indoor Air Quality in California Classrooms?  

E-Print Network [OSTI]

air conditioning  IAQ: Indoor air quality  LBNL: Lawrence Degrading Indoor Air Quality in California Classrooms? HDEGRADING INDOOR AIR QUALITY IN CALIFORNIA CLASSROOMS?

Fisk, Michael G. Apte and William J.

2009-01-01T23:59:59.000Z

17

Comparison of dust from HVAC filters, indoor surfaces, and indoor air Federico Noris*  

E-Print Network [OSTI]

Comparison of dust from HVAC filters, indoor surfaces, and indoor air Federico Noris* , Kerry A and Environmental Engineering * Corresponding email: Fedenoris@mail.utexas.edu SUMMARY HVAC filters are long heavy metal (Pb, Cd and As) concentrations. HVAC filter microbial concentrations appear to be consistent

Siegel, Jeffrey

18

THE FILTERING OF OZONE CONCENTRATION MEASUREMENTS COLLECTED IN A TURBULENT AIR STREAM USING BAYESIAN MODELS  

E-Print Network [OSTI]

; Fast response (O 3 ) gas analyzers are widely used to monitor (O 3 ) concentration in air pollution is becom­ ing increasingly important in air pollution science and boundary layer meteorology. For exampleTHE FILTERING OF OZONE CONCENTRATION MEASUREMENTS COLLECTED IN A TURBULENT AIR STREAM USING

West, Mike

19

Filter for on-line air monitor unaffected by radon progeny and method of using same  

DOE Patents [OSTI]

An apparatus for testing air having contaminants and radon progeny therein. The apparatus includes a sampling box having an inlet for receiving the air and an outlet for discharging the air. The sampling box includes a filter made of a plate of sintered stainless steel. The filter traps the contaminants, yet allows at least a portion of the radon progeny to pass therethrough. A method of testing air having contaminants and radon progeny therein. The method includes providing a testing apparatus that has a sampling box with an inlet for receiving the air and an outlet for discharging the air, and has a sintered stainless steel filter disposed within said sampling box; drawing air from a source into the sampling box using a vacuum pump; passing the air through the filter; monitoring the contaminants trapped by the filter; and providing an alarm when a selected level of contaminants is reached. The filter traps the contaminants, yet allows at least a portion of the radon progeny to pass therethrough.

Phillips, Terrance D. (Aiken, SC); Edwards, Howard D. (Augusta, GA)

1999-01-01T23:59:59.000Z

20

E-Print Network 3.0 - air cleaning filters Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

< 1 2 3 4 5 > >> 41 www.ext.vt.edu Produced by Communications and Marketing, College of Agriculture and Life Sciences, Summary: be present in the air to be filtered. Chemical...

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Problems Found Using a Radon Stripping Algorithm for Retrospective Assessment of Air Filter Samples  

SciTech Connect (OSTI)

An evaluation of a large number of air sample filters was undertaken using a commercial alpha and beta spectroscopy system employing a passive implanted planar silicon (PIPS) detector. Samples were only measured after air flow through the filters had ceased. Use of a commercial radon stripping algorithm was implemented to discriminate anthropogenic alpha activity on the filters from the radon progeny. When uncontaminated air filters were evaluated, the results showed that there was a time-dependent bias in both average estimates and measurement dispersion of anthropogenic activity estimates with the relative bias being small compared to the dispersion, indicating that the system would not give false positive indications for an appropriately set decision level. By also measuring environmental air sample filters simultaneously with electroplated alpha filters, use of the radon stripping algorithm demonstrated a number of substantial unexpected deviations from calibrated values indicating that the system would give false negative indications. Use of the current algorithm is, therefore, not recommended for general assay applications. Use of the PIPS detector should only be utilized for gross counting without appropriate modifications to the curve-fitting algorithm. As a screening method, the radon stripping algorithm might be expected to see elevated alpha activities on air sample filters (not due to radon progeny) around the 200 disintegrations per minute level.

Robert Hayes

2008-04-01T23:59:59.000Z

22

Effect of Intake Air Filter Condition on Light-Duty Gasoline Vehicles  

SciTech Connect (OSTI)

Proper maintenance can help vehicles perform as designed, positively affecting fuel economy, emissions, and the overall drivability. This effort investigates the effect of one maintenance factor, intake air filter replacement, with primary focus on vehicle fuel economy, but also examining emissions and performance. Older studies, dealing with carbureted gasoline vehicles, have indicated that replacing a clogged or dirty air filter can improve vehicle fuel economy and conversely that a dirty air filter can be significantly detrimental to fuel economy. The effect of clogged air filters on the fuel economy, acceleration and emissions of five gasoline fueled vehicles is examined. Four of these were modern vehicles, featuring closed-loop control and ranging in model year from 2003 to 2007. Three vehicles were powered by naturally aspirated, port fuel injection (PFI) engines of differing size and cylinder configuration: an inline 4, a V6 and a V8. A turbocharged inline 4-cylinder gasoline direct injection (GDI) engine powered vehicle was the fourth modern gasoline vehicle tested. A vintage 1972 vehicle equipped with a carburetor (open-loop control) was also examined. Results reveal insignificant fuel economy and emissions sensitivity of modern vehicles to air filter condition, but measureable effects on the 1972 vehicle. All vehicles experienced a measured acceleration performance penalty with clogged intake air filters.

Thomas, John F [ORNL] [ORNL; Huff, Shean P [ORNL] [ORNL; West, Brian H [ORNL] [ORNL; Norman, Kevin M [ORNL] [ORNL

2012-01-01T23:59:59.000Z

23

Generation of concentration density maxima of small dispersive coal dust particles in horizontal iodine air filter at air-dust aerosol blow  

E-Print Network [OSTI]

The spatial distributions of the small dispersive coal dust particles with the nano and micro sizes in the granular filtering medium with the cylindrical coal granules in the absorber in the horizontal iodine air filter during its long term operation at the nuclear power plant are researched. It is shown that the concentration density maxima of the small dispersive coal dust particles appear in the granular filtering medium with the cylindrical coal absorbent granules in the horizontal iodine air filter at an action by the air dust aerosol blow. The comparison of the measured aerodynamic resistances of the horizontal and vertical iodine air filters is conducted. The main conclusion is that the magnitude of the aerodynamic resistance of the horizontal iodine air filters is much smaller in comparison with the magnitude of the aerodynamic resistance of the vertical iodine air filters at the same loads of the air dust aerosol volumes. It is explained that the direction of the air dust aerosol blow and the direction of the gravitation force in the horizontal iodine air filter are orthogonal, hence the effective accumulation of the small dispersive coal dust particles takes place at the bottom of absorber in the horizontal iodine air filter. It is found that the air dust aerosol stream flow in the horizontal iodine air filter is not limited by the appearing structures, made of the precipitated small dispersive coal dust particles, in distinction from the vertical iodine air filter, in the process of long term operation of the iodine air filters at the nuclear power plant.

I. M. Neklyudov; O. P. Ledenyov; L. I. Fedorova; P. Ya. Poltinin

2013-06-11T23:59:59.000Z

24

Predicting the energy use and operation cost of HVAC air filters  

Science Journals Connector (OSTI)

A model has been developed to predict the energy efficiency and annual operation cost for filters installed in an HVAC air handling system using filter data from standard ASHRAE 52.2-2007 filter tests. Thirty filters from six manufacturers were investigated to determine the most energy efficient and cost effective filtration solutions for an airport installation in Vancouver, Canada. A comparison of the output of the proposed model with the ‘kep’ and Wattage methods was performed to highlight the possible differences in filter choice that would be made using alternative approaches. The outcomes have been shown to differ due to data not incorporated in the older models such as filtration efficiency and particulate concentration. The sensitivity of filter cost to model parameters was also studied. It was found that the concentration of particles in the air stream and the cost of electricity had the largest effect on annual cost of operation. Increasing the concentration of particles in the air stream increases the cost of operating the filter and causes the installation of a prefilter upstream of the primary filter to be more economically attractive. Increasing electricity cost also increases the operation cost but has the reverse effect on attractiveness of prefilter installations.

James F. Montgomery; Sheldon I. Green; Steven N. Rogak; Karen Bartlett

2012-01-01T23:59:59.000Z

25

Use of a Radon Stripping Algorithm for Retrospective Assessment of Air Filter Samples  

SciTech Connect (OSTI)

An evaluation of a large number of air sample filters was undertaken using a commercial alpha and beta spectroscopy system employing a passive implanted planar silicon (PIPS) detector. Samples were only measured after air flow through the filters had ceased. Use of a commercial radon stripping algorithm was implemented to discriminate anthropogenic alpha and beta activity on the filters from the radon progeny. When uncontaminated air filters were evaluated, the results showed that there was a time-dependent bias in both average estimates and measurement dispersion with the relative bias being small compared to the dispersion. By also measuring environmental air sample filters simultaneously with electroplated alpha and beta sources, use of the radon stripping algorithm demonstrated a number of substantial unexpected deviations. Use of the current algorithm is therefore not recommended for assay applications and so use of the PIPS detector should only be utilized for gross counting without appropriate modifications to the curve fitting algorithm. As a screening method, the radon stripping algorithm might be expected to see elevated alpha and beta activities on air sample filters (not due to radon progeny) around the 200 dpm level.

Robert Hayes

2009-01-23T23:59:59.000Z

26

Results of Self-Absorption Study on the Versapor 3000 Filters for Radioactive Particulate Air Sampling  

SciTech Connect (OSTI)

Since the mid-1980s the Pacific Northwest National Laboratory (PNNL) has used a value of 0.85 as a correction factor for the self absorption of activity of particulate radioactive air samples. More recently, an effort was made to evaluate the current particulate radioactive air sample filters (Versapor® 3000) used at PNNL for self absorption effects. There were two methods used in the study, 1) to compare the radioactivity concentration by direct gas-flow proportional counting of the filter to the results obtained after acid digestion of the filter and counting again by gas-flow proportional detection and 2) to evaluate sample filters by high resolution visual/infrared microscopy to determine the depth of material loading on or in the filter fiber material. Sixty samples were selected from the archive for acid digestion in the first method and about 30 samples were selected for high resolution visual/infrared microscopy. Mass loading effects were also considered. From the sample filter analysis, large error is associated with the average self absorption factor, however, when the data is compared directly one-to-one, statistically, there appears to be good correlation between the two analytical methods. The mass loading of filters evaluated was <0.2 mg cm-2 and was also compared against other published results. The microscopy analysis shows the sample material remains on the top of the filter paper and does not imbed into the filter media. Results of the microscopy evaluation lead to the conclusion that there is not a mechanism for significant self absorption. The overall conclusion is that self-absorption is not a significant factor in the analysis of filters used at PNNL for radioactive air stack sampling of radionuclide particulates and that an applied correction factor is conservative in determining overall sample activity. A new self absorption factor of 1.0 is recommended.

Barnett, J. M.

2008-08-22T23:59:59.000Z

27

Radioactive air emissions notice of construction HEPA filtered vacuum radioactive air emission units  

SciTech Connect (OSTI)

This notice of construction (NOC) requests a categorical approval for construction and operation of certain portable high-efficiency particulate air (HEPA) filtered vacuum radionuclide airborne emission units (HVUs). Approval of this NOC application is intended to allow operation of the HVUs without prior project-specific approval. This NOC does not request replacement or supersedence of any previous agreements/approvals by the Washington State Department of Health for the use of vacuums on the Hanford Site. These previous agreement/approvals include the approved NOCs for the use of EuroClean HEPA vacuums at the T Plant Complex (routine technical meeting 12/10/96) and the Kelly Decontamination System at the Plutonium-Uranium Extraction (PUREX) Plant (routine technical meeting 06/25/96). Also, this NOC does not replace or supersede the agreement reached regarding the use of HEPA hand-held/shop-vacuum cleaners for routine cleanup activities conducted by the Environmental Restoration Project. Routine cleanup activities are conducted during the surveillance and maintenance of inactive waste sites (Radioactive Area Remedial Action Project) and inactive facilities. HEPA hand-held/shop-vacuum cleaners are used to clean up spot surface contamination areas found during outdoor radiological field surveys, and to clean up localized radiologically contaminated material (e.g., dust, dirt, bird droppings, animal feces, liquids, insects, spider webs, etc.). This agreement, documented in the October 12, 1994 Routine Meeting Minutes, is based on routine cleanup consisting of spot cleanup of low-level contamination provided that, in each case, the source term potential would be below 0.1 millirem per year.

JOHNSON, R.E.

1999-09-01T23:59:59.000Z

28

HVAC: Maintaining HVAC equipment with air intake filters  

Science Journals Connector (OSTI)

Airborne debris, such as domestic waste, leaves, pollen, insects and even plastic carrier bags is the leading cause of fouling and clogging of cooling towers, heat exchangers, air cooled chillers and other HVAC systems. Richard Betts, managing director of UK-based RAB Specialist Engineers, provides Filtration+Separation with some practical advice on how to maintain HVAC equipment.

Richard Betts

2013-01-01T23:59:59.000Z

29

CHEMICAL REMOVAL OF BIOMASS FROM WASTE AIR BIOTRICKLING FILTERS: SCREENING OF CHEMICALS  

E-Print Network [OSTI]

CHEMICAL REMOVAL OF BIOMASS FROM WASTE AIR BIOTRICKLING FILTERS: SCREENING OF CHEMICALS for the removal of excess biomass from biotrickling ®lters for waste air treatment. Although the experiment/v) NaOH, 0.26 and 1.31% (w/v) NaClO and 11.3% (w/v) H2O2 resulted in a biomass removal signi

30

Removal of ammonia from contaminated air in a biotrickling filter Denitrifying bioreactor combination system  

E-Print Network [OSTI]

, and loadings below 56 g m�3 h�1 resulted in essentially complete removal of ammonia. In addition, concenRemoval of ammonia from contaminated air in a biotrickling filter ­ Denitrifying bioreactor Nitrification Denitrification a b s t r a c t The removal of gaseous ammonia in a system consisting

31

Long Duration Tests of Room Air Filters in Cigarette Smokers' Homes  

Science Journals Connector (OSTI)

Long Duration Tests of Room Air Filters in Cigarette Smokers' Homes ... Between 15 and 40 cigarettes were smoked daily by several smokers in each home. ... Emissions from PM sources in homes may cause much higher concentrations than outdoor PM that infiltrates into the home (18, 42?45. ...

Stuart Batterman; Christopher Godwin; Chunrong Jia

2005-08-06T23:59:59.000Z

32

Investigation on the performance of airliner cabin air filter throughout the lifetime usage  

E-Print Network [OSTI]

of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai, China 200092 2 School' exposure to particulate pollutants, most of aircraft environmental control systems have been installed1 Investigation on the performance of airliner cabin air filter throughout the lifetime usage Bin

Chen, Qingyan "Yan"

33

The relationship between filter pressure drop, indoor air quality, and energy consumption in rooftop HVAC units  

Science Journals Connector (OSTI)

Abstract HVAC filters are commonly used to decrease exposure to particulate matter, yet little is known about the energy impacts and air quality consequences of high efficiency filters installed in commercial buildings. To explore these effects, system airflow, filter and coil pressure drop, fan pressure rise, and power draw were measured, and cooling capacity and compressor power were modeled for at least four filter pressure drops in 15 rooftop units equipped with and without fan speed control. Energy implications and clean-air-delivery-rate were estimated for a large dataset of filters divided into four efficiency (MERV) categories. Field measurements conducted on units without fan speed control showed that increased filter pressure drop decreased flow, cooling capacity, and power. For a unit with fan speed control, the same increase in pressure drop resulted in the same magnitude change of fan power but in the opposite direction, and other parameters were unchanged. Replacing MERV 8 with MERV 13/14 resulted in higher energy consumption (2–4%) during cooling mode for both unit types, energy savings during fan-only mode (8–13%) in units without fan speed control, and increased energy consumption in fan-only mode (11–18%) in the unit with fan speed control. Energy consumption increases were offset by improvement in clean-air-delivery-rate, especially for PM2.5 (2.9–3.8 times increase going from MERV 8 to MERV 13/14), with larger benefits achieved for the unit with fan speed control. A comprehensive understanding of the impact of filtration is essential to selecting the appropriate efficiency of filters that ensures low-energy use and a healthy indoor environment.

Marwa Zaatari; Atila Novoselac; Jeffrey Siegel

2014-01-01T23:59:59.000Z

34

Generation of concentration density maxima of small dispersive coal dust particles in horizontal iodine air filter at air-dust aerosol blow  

E-Print Network [OSTI]

The spatial distributions of the small dispersive coal dust particles with the nano and micro sizes in the granular filtering medium with the cylindrical coal granules in the absorber in the horizontal iodine air filter during its long term operation at the nuclear power plant are researched. It is shown that the concentration density maxima of the small dispersive coal dust particles appear in the granular filtering medium with the cylindrical coal absorbent granules in the horizontal iodine air filter at an action by the air dust aerosol blow. The comparison of the measured aerodynamic resistances of the horizontal and vertical iodine air filters is conducted. The main conclusion is that the magnitude of the aerodynamic resistance of the horizontal iodine air filters is much smaller in comparison with the magnitude of the aerodynamic resistance of the vertical iodine air filters at the same loads of the air dust aerosol volumes. It is explained that the direction of the air dust aerosol blow and the directi...

Neklyudov, I M; Fedorova, L I; Poltinin, P Ya

2013-01-01T23:59:59.000Z

35

On the structurization of coal dust precipitations and their influence on aerodynamic resistance by granulated mediums in air filters at nuclear power plants  

E-Print Network [OSTI]

The processes of structurization of dust precipitations in granulated filtering mediums, formed by the monolithic glass spherical granules with the diameters of 2mm and 3mm, are re-searched. The distinctions between the distributions of filtered coal dust masses in the air filters with cylindrical granules and the air filters with spherical granules, are found. The influences by the filtered dust masses on the air resistance of both the air filters with the cylindrical granules and the air filters with the spherical granules are described. The conclusions on a possibility of the use of various chemical adsorbents with different geometric forms and volumetric dimensions to improve the filtering properties of granulated filtering mediums in air filters at nuclear power plants are formulated.

Neklyudov, I M; Fedorova, L I; Poltinin, P Ya

2012-01-01T23:59:59.000Z

36

On the structurization of coal dust precipitations and their influence on aerodynamic resistance by granulated mediums in air filters at nuclear power plants  

E-Print Network [OSTI]

The processes of structurization of dust precipitations in granulated filtering mediums, formed by the monolithic glass spherical granules with the diameters of 2mm and 3mm, are re-searched. The distinctions between the distributions of filtered coal dust masses in the air filters with cylindrical granules and the air filters with spherical granules, are found. The influences by the filtered dust masses on the air resistance of both the air filters with the cylindrical granules and the air filters with the spherical granules are described. The conclusions on a possibility of the use of various chemical adsorbents with different geometric forms and volumetric dimensions to improve the filtering properties of granulated filtering mediums in air filters at nuclear power plants are formulated.

I. M. Neklyudov; O. P. Ledenyov; L. I. Fedorova; P. Ya. Poltinin

2012-07-02T23:59:59.000Z

37

INNOVATIVE EXPERIMENTAL SETUP FOR THE PARALLEL OPERATION OF MULTIPLE BENCH SCALE BIOTRICKLING FILTERS FOR WASTE AIR TREATMENT  

E-Print Network [OSTI]

pollutants into the atmosphere. Amongst the various air pollution control techniques available, biological provides a new and inexpensive tool for comparative studies in biotrickling filtration for air pollution: biofilters and biotrickling filters. In biofilters, humidified polluted air is passed through a packed bed

38

Detecting discontinuities in time series of upper air data: Demonstration of an adaptive filter technique  

SciTech Connect (OSTI)

The issue of global climate change due to increased anthropogenic emissions of greenhouse gases in the atmosphere has gained considerable attention and importance. Climate change studies require the interpretation of weather data collected in numerous locations and/or over the span of several decades. Unfortunately, these data contain biases caused by changes in instruments and data acquisition procedures. It is essential that biases are identified and/or removed before these data can be used confidently in the context of climate change research. The purpose of this paper is to illustrate the use of an adaptive moving average filter and compare it with traditional parametric methods. The advantage of the adaptive filter over traditional parametric methods is that it is less effected by seasonal patterns and trends. The filter has been applied to upper air relative humidity and temperature data. Applied to generated data, the filter has a root mean squared error accuracy of about 600 days when locating changes of 0.1 standard deviations and about 20 days for changes of 0.5 standard deviations. In some circumstances, the accuracy of location estimation can be improved through parametric techniques used in conjunction with the adaptive filter.

Zurbenko, I.; Chen, J.; Rao, S.T. [State Univ. of New York, Albany, NY (United States)] [and others

1997-11-01T23:59:59.000Z

39

Chemoreception of air- and waterborne food chemicals by the American alligator (Alligator mississippiensis)  

E-Print Network [OSTI]

CHEMORECEPTION OF AIR- AND WATERBORNE FOOD CHEMICALS BY THE AMERICAN ALLIGATOR (Alligator mississippiensis) A Thesis by MARILYN RHETT BANTA Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August 1991 Major Subject: Zoology CHEMORECEPTION OF AIR- AND WATERBORNE FOOD CHEMICALS BY THE AMERICAN ALLIGATOR ( Al li ga t or mi ssi ssi ppi ensi s) A Thesis by MARILYN RHETT BANTA Approved...

Banta, Marilyn Rhett

2012-06-07T23:59:59.000Z

40

Air filters from HVAC systems as possible source of volatile organic compounds (VOC) – laboratory and field assays  

Science Journals Connector (OSTI)

The emission of volatile organic compounds (VOC) from air filters of HVAC systems was to be evaluated. In a first study carbonyl compounds (14 aldehydes and two ketones) were measured by reacting them with 2,4-dinitrophenylhydrazine (DNPH). Analysis was done by HPLC and UV detection. In laboratory experiments pieces of used and unused HVAC filters were incubated in test chambers. Filters to be investigated were taken from a filter bank of a large HVAC system in the centre of Berlin. First results show that – among those compounds – formaldehyde and acetone were found in higher concentrations in the test chambers filled with used filters in comparison to those with unused filters. Parallel field measurements were carried out at the prefilter and main filter banks of the two HVAC systems. Here measurements were carried out simultaneously before and after the filters to investigate whether those aldehydes or ketones arise from the filter material on site. Formaldehyde and acetone significantly increased in concentration after the filters of one HVAC system. In parallel experiments microorganisms were proved to be able to survive on air filters. Therefore, a possible source of formaldehyde and acetone might be microbes.

Hans Schleibinger; Henning Rüden

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

In-place HEPA (high efficiency, particulate air) filter testing at Hanford: Operating experiences, calibrations, and lessons learned  

SciTech Connect (OSTI)

High Efficiency, Particulate Air (HEPA) Filters provide a minimum of 99.97% removal efficiency for particles greater than or equal to .3 microns in diameter. Each HEPA filter installation at Hanford is, at specified intervals, functionally tested for leaks. The test procedure involves a dioctylphthalate (DOP) smoke generator and a calibrated airborne particle detector. The DOP generator produces smoke of a known quantitative particle size distribution upstream of the filter. The airborne particle detector is first placed upstream, and then downstream of the filter to determine percent penetration. The smoke generator is characterized using a calibrated laser spectrometer, and the particle detector is calibrated using a calibrated picoammeter. 2 refs., 4 figs.

Flores, D.S.; Decelis, D.G.

1989-10-01T23:59:59.000Z

42

Removal of submicron particles using a carbon fiber ionizer-assisted medium air filter in a heating, ventilation, and air-conditioning (HVAC) system  

Science Journals Connector (OSTI)

Laboratory tests of particle removal were performed with a pair of carbon fiber ionizers installed upstream of a glass fiber air filter. For air flow face velocities of 0.4, 0.6, and 0.8 m/s, the overall particle removal efficiencies of the filter for all submicron particles were 17%, 16%, and 14%, respectively, when the ionizers were not turned on. These values increased to 27%, 23%, and 19%, respectively, when the ionizers were used to generate ions of 6.0 × 109 ions/cm3 in concentration. The carbon fiber ionizers were then installed in front of a glass fiber air filter located in a heating, ventilation, and air-conditioning (HVAC) system. Field tests were performed in a test office room with a total indoor particle concentration of 2.2 × 104 particles/cm3. When the flow rate was 75 cubic meters per hour (CMH), the steady-state values of the total indoor particle concentrations using the glass fiber air filter with and without ionizers decreased to 0.87 × 104 particles/cm3 and 1.15 × 104 particles/cm3, respectively, resulting in a 25% decrease of the ionizer effect. When the operation flow rate was increased to 115 and 150 CMH, the effect of the ionizer decreased to 19% and 17%, respectively. These experimental data match the results calculated using a mass-balance model whose parameters were determined from laboratory tests.

Jae Hong Park; Ki Young Yoon; Jungho Hwang

2011-01-01T23:59:59.000Z

43

Gas Filter Testing Methods  

Science Journals Connector (OSTI)

Gas filtration of air in the cleanroom is carried out with HEPA (high- ... filter. The ambient air filters for the cleanroom are relatively fragile and require great care...

Alvin Lieberman

1992-01-01T23:59:59.000Z

44

Influence by small dispersive coal dust particles of different fractional consistence on characteristics of iodine air filter at nuclear power plant  

E-Print Network [OSTI]

The main purpose of research is to determine the influence by the small dispersive coal dust particles of the different fractional consistence on the technical characteristics of the vertical iodine air filter at nuclear power plant. The research on the transport properties of the small dispersive coal dust particles in the granular filtering medium of absorber in the vertical iodine air filter is completed in the case, when the modeled aerodynamic conditions are similar to the real aerodynamic conditions. It is shown that the appearance of the different fractional consistence of small dispersive coal dust particles with the decreasing dimensions down to the micro and nano sizes at the action of the air dust aerosol stream normally results in a significant change of distribution of the small dispersive coal dust particles masses in the granular filtering medium of an absorber in the vertical iodine air filter, changing the vertical iodine air filter aerodynamic characteristics. The precise characterization of...

Neklyudov, I M; Fedorova, L I; Poltinin, P Ya

2013-01-01T23:59:59.000Z

45

Energy Efficient Indoor VOC Air Cleaning with Activated Carbon Fiber (ACF) Filters  

E-Print Network [OSTI]

The existing particle filters in HVAC systems of buildingscandidates for use as VOC filters in HVAC systems. Recentcost of an ACF filter bed in an HVAC system is the energy

Sidheswaran, Meera

2012-01-01T23:59:59.000Z

46

Effect of Intake Air Filter Condition on Vehicle Fuel Economy--ORNL/TM-2009/021  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

021 021 Effect of Intake Air Filter Condition on Vehicle Fuel Economy February 2009 Prepared by Kevin Norman Shean Huff Brian West DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source. National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone 703-605-6000 (1-800-553-6847) TDD 703-487-4639 Fax 703-605-6900 E-mail info@ntis.gov Web site http://www.ntis.gov/support/ordernowabout.htm Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange

47

DOE-HDBK-1169-2003; DOE Handbook Nuclear Air Cleaning Handbook  

Broader source: Energy.gov (indexed) [DOE]

viii viii ACRONYMS, ABBREVIATIONS, AND CONVERSION CHARTS ACGIH American Conference of Governmental Industrial Hygienists ACI American Concrete Institute ADC Air Diffusion Council ADL Additional Dynamic Loads AEC U.S. Atomic Energy Commission (predecessor of ERDA, DOE, and NRC) AFI Air Filter Institute AGS American Glovebox Society AgX silver-exchanged zeolite AHJ Authority Having Jurisdiction AISI American Iron and Steel Institute AISC American Institute of Steel Construction ALAP as low as practicable (obsolete term for ALARA) ALARA as low as reasonably achievable AMCA Air Moving and Conditioning Association AMD aerodynamic mean diameter (of particles) ANS American Nuclear Society ANSI American National Standards Institute APA American Plywood Association

48

American Institute of Aeronautics and Astronautics Numerical Simulation of H2/Air Detonation Using Detailed  

E-Print Network [OSTI]

- 1 - American Institute of Aeronautics and Astronautics Numerical Simulation of H2/Air Detonation of detonation, and 3-D computation of detonation propagating in a tube with a spiral obstacle was conducted. Introduction A detonation is a shock wave sustained by the energy released by combustion. The typical case

Löhner, Rainald

49

Physical features of accumulation and distribution processes of small disperse coal dust precipitations and absorbed radioactive chemical elements in iodine air filter at nuclear power plant  

E-Print Network [OSTI]

The physical features of absorption process of radioactive chemical elements and their isotopes in the iodine air filters of the type of AU-1500 at the nuclear power plants are researched. It is shown that the non-homogenous spatial distribution of absorbed radioactive chemical elements and their isotopes in the iodine air filter, probed by the gamma-activation analysis method, is well correlated with the spatial distribution of small disperse coal dust precipitations in the iodine air filter. This circumstance points out to an important role by the small disperse coal dust fractions of absorber in the absorption process of radioactive chemical elements and their isotopes in the iodine air filter. The physical origins of characteristic interaction between the radioactive chemical elements and the accumulated small disperse coal dust precipitations in an iodine air filter are considered. The analysis of influence by the researched physical processes on the technical characteristics and functionality of iodine ...

Ledenyov, Oleg P; Poltinin, P Ya; Fedorova, L I

2012-01-01T23:59:59.000Z

50

Physical features of small disperse coal dust fraction transportation and structurization processes in iodine air filters of absorption type in ventilation systems at nuclear power plants  

E-Print Network [OSTI]

The research on the physical features of transportation and structurization processes by the air-dust aerosol in the granular filtering medium with the cylindrical coal adsorbent granules in an air filter of the adsorption type in the heating ventilation and cooling (HVAC) system at the nuclear power plant is completed. The physical origins of the coal dust masses distribution along the absorber with the granular filtering medium with the cylindrical coal granules during the air-dust aerosol intake process in the near the surface layer of absorber are researched. The quantitative technical characteristics of air filtering elements, which have to be considered during the optimization of air filters designs for the application in the ventilation systems at the nuclear power plants, are obtained.

Ledenyov, Oleg P; Poltinin, P Ya; Fedorova, L I

2012-01-01T23:59:59.000Z

51

Influence by small dispersive coal dust particles of different fractional consistence on characteristics of iodine air filter at nuclear power plant  

E-Print Network [OSTI]

The main purpose of research is to determine the influence by the small dispersive coal dust particles of the different fractional consistence on the technical characteristics of the vertical iodine air filter at nuclear power plant. The research on the transport properties of the small dispersive coal dust particles in the granular filtering medium of absorber in the vertical iodine air filter is completed in the case, when the modeled aerodynamic conditions are similar to the real aerodynamic conditions. It is shown that the appearance of the different fractional consistence of small dispersive coal dust particles with the decreasing dimensions down to the micro and nano sizes at the action of the air dust aerosol stream normally results in a significant change of distribution of the small dispersive coal dust particles masses in the granular filtering medium of an absorber in the vertical iodine air filter, changing the vertical iodine air filter aerodynamic characteristics. The precise characterization of the aerodynamic resistance of a model of the vertical iodine air filter is completed. The comparative analysis of the technical characteristics of the vertical and horizontal iodine air filters is also made.

I. M. Neklyudov; O. P. Ledenyov; L. I. Fedorova; P. Ya. Poltinin

2013-02-18T23:59:59.000Z

52

Japanese and American competition in the development of scroll compressors and its impact on the American air conditioning industry  

SciTech Connect (OSTI)

This report examines the technological development of scroll compressors and its impact on the air conditioning equipment industry. Scroll compressors, although considered to be the compressors of the future for energy-efficient residential heat pumps and possibly for many other applications, are difficult to manufacture on a volume-production base. The manufacturing process requires computer-aided, numerically controlled tools for high-precision fabrication of major parts. Japan implemented a global strategy for dominating the technological world market in the 1970s, and scroll compressor technology benefited from the advent of new-generation machine tools. As a result, if American manufacturers of scroll compressors purchase or are essentially forced to purchase numerically controlled tools from Japan in the future, they will then become dependent on their own competitors because the same Japanese conglomerates that make numerically controlled tools also make scroll compressors. This study illustrates the importance of the basic machine tool industry to the health of the US economy. Without a strong machine tool industry, it is difficult for American manufacturers to put innovations, whether patented or not, into production. As we experience transformation in the air conditioning and refrigeration market, it will be critical to establish a consistent national policy to provide healthy competition among producers, to promote innovation within the industry, to enhance assimilation of new technology, and to eliminate practices that are incompatible with these goals. 72 refs., 8 figs., 1 tab.

Ushimaru, Kenji (Energy International, Inc., Bellevue, WA (USA))

1990-02-01T23:59:59.000Z

53

Disk filter  

DOE Patents [OSTI]

An electric disk filter provides a high efficiency at high temperature. A hollow outer filter of fibrous stainless steel forms the ground electrode. A refractory filter material is placed between the outer electrode and the inner electrically isolated high voltage electrode. Air flows through the outer filter surfaces through the electrified refractory filter media and between the high voltage electrodes and is removed from a space in the high voltage electrode.

Bergman, W.

1985-01-09T23:59:59.000Z

54

Apparatus for measuring the decontamination factor of a multiple filter air-cleaning system  

DOE Patents [OSTI]

An apparatus for measuring the overall decontamination factors of first and second filters located in a plenum. The first filter separates the plenum's upstream and intermediate chambers. The second filter separates the plenum's intermediate and downstream chambers. The apparatus comprises an aerosol generator that generates a challenge aerosol. An upstream collector collects unfiltered aerosol which is piped to first and second dilution stages and then to a laser aerosol spectrometer. An intermediate collector collects challenge aerosol that penetrates the first filter. The filtered aerosol is piped to the first dilution stage, diluted, and then piped to the laser aerosol spectrometer which detects single particles. A downstream collector collects challenge aerosol that penetrates both filters. The twice-filtered aerosol is piped to the aerosol spectrometer. A pump and several valves control the movement of aerosol within the apparatus.

Ortiz, J.P.

1985-07-03T23:59:59.000Z

55

Measurements of Fission Products from the Fukushima Daiichi Incident in San Francisco Bay Area Air Filters, Automobile Filters, Rainwater, and Food  

E-Print Network [OSTI]

A variety of environmental media were analyzed for fallout radionuclides resulting from the Fukushima nuclear accident by the Low Background Facility (LBF) at the Lawrence Berkeley National Laboratory (LBNL) in Berkeley, CA. Monitoring activities in air and rainwater began soon after the onset of the March 11, 2011 tsunami and are reported here through the end of 2012. Observed fallout isotopes include $^{131}$I, $^{132}$I,$^{132}$Te,$^{134}$Cs, $^{136}$Cs, and $^{137}$Cs. Isotopes were measured on environmental air filters, automobile filters, and in rainwater. An additional analysis of rainwater in search of $^{90}$Sr is also presented. Last, a series of food measurements conducted in September of 2013 are included due to extended media concerns of $^{134, 137}$Cs in fish. Similar measurements of fallout from the Chernobyl disaster at LBNL, previously unpublished publicly, are also presented here as a comparison with the Fukushima incident. All measurements presented also include natural radionuclides found in the environment to provide a basis for comparison.

A. R. Smith; K. J. Thomas; E. B. Norman; D. L. Hurley; B. T. Lo; Y. D. Chan; P. V. Guillaumon; B. G. Harvey

2013-12-27T23:59:59.000Z

56

E-Print Network 3.0 - air filter samples Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Statistical Physics Group Collection: Materials Science 2 Proceedings of Healthy Buildings 2009 Paper 535 HVAC filters as "passive" samplers: fate analysis of indoor...

57

Evaluation of beta partical densitometry for determination of self-absorption factors in gross alpha and gross beta radioactivity measurements on air particulate filter samples  

E-Print Network [OSTI]

Alpha and beta particles emitted from radioactive material collected on an air filter may be significantly attenuated by the mass (thickness) of collected dust. In this study, we determined the mass or thickness of the simulated dust deposit...

Breida, Margaret A

2012-06-07T23:59:59.000Z

58

Impact of HVAC filter on indoor air quality in terms of ozone removal and carbonyls generation  

Science Journals Connector (OSTI)

Abstract This study aims at detecting ozone removal rates and corresponding carbonyls generated by ozone reaction with HVAC filters from various building, i.e., shopping mall, school, and office building. Studies were conducted in a small-scale environmental chamber. By examining dust properties including organic carbon proportion and specific surface area of dusts adsorbed on filters along with ozone removal rates and carbonyls generation rate, the relationship among dust properties, ozone removal rates, and carbonyls generation was identified. The results indicate a well-defined positive correlation between ozone removal efficiency and carbonyls generation on filters, as well as a positive correlation among the mass of organic carbon on filters, ozone removal efficiency and carbonyls generations.

Chi-Chi Lin; Hsuan-Yu Chen

2014-01-01T23:59:59.000Z

59

E-Print Network 3.0 - air filter inserts Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Environmental Management and Restoration Technologies 62 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

60

Distribution of small dispersive coal dust particles and absorbed radioactive chemical elements in conditions of forced acoustic resonance in iodine air filter at nuclear power plant  

E-Print Network [OSTI]

The physical features of distribution of the small dispersive coal dust particles and the adsorbed radioactive chemical elements and their isotopes in the absorber with the granular filtering medium with the cylindrical coal granules were researched in the case of the intensive air dust aerosol stream flow through the iodine air filter (IAF). It was shown that, at the certain aerodynamic conditions in the IAF, the generation of the acoustic oscillations is possible. It was found that the acoustic oscillations generation results in an appearance of the standing acoustic waves of the air pressure (density) in the IAF. In the case of the intensive blow of the air dust aerosol, it was demonstrated that the standing acoustic waves have some strong influences on both: 1) the dynamics of small dispersive coal dust particles movement and their accumulation in the IAF; 2) the oversaturation of the cylindrical coal granules by the adsorbed radioactive chemical elements and their isotopes in the regions, where the antin...

Ledenyov, Oleg P

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Hepa filter dissolution process  

DOE Patents [OSTI]

A process for dissolution of spent high efficiency particulate air (HEPA) filters and then combining the complexed filter solution with other radioactive wastes prior to calcining the mixed and blended waste feed. The process is an alternate to a prior method of acid leaching the spent filters which is an inefficient method of treating spent HEPA filters for disposal.

Brewer, Ken N. (Arco, ID); Murphy, James A. (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

62

Responses to Air Quality Alerts: Do Americans Spend Less Time Outdoors?  

E-Print Network [OSTI]

alternative approaches to reduce the health risks from air pollution. Air pollution levels can vary, 2011 Abstract Air pollution levels can vary dramatically from day to day based on predictable weather considerable improvements in air quality over the past few decades, there is still concern that the health

Levinson, David M.

63

Remotely serviced filter and housing  

DOE Patents [OSTI]

A filter system for a hot cell comprises a housing adapted for input of air or other gas to be filtered, flow of the air through a filter element, and exit of filtered air. The housing is tapered at the top to make it easy to insert a filter cartridge using an overhead crane. The filter cartridge holds the filter element while the air or other gas is passed through the filter element. Captive bolts in trunnion nuts are readily operated by electromechanical manipulators operating power wrenches to secure and release the filter cartridge. The filter cartridge is adapted to make it easy to change a filter element by using a master-slave manipulator at a shielded window station.

Ross, Maurice J. (Pocatello, ID); Zaladonis, Larry A. (Idaho Falls, ID)

1988-09-27T23:59:59.000Z

64

Remotely serviced filter and housing  

DOE Patents [OSTI]

A filter system for a hot cell comprises a housing adapted for input of air or other gas to be filtered, flow of the air through a filter element, and exit of filtered air. The housing is tapered at the top to make it easy to insert a filter cartridge holds the filter element while the air or other gas is passed through the filter element. Captive bolts in trunnion nuts are readily operated by electromechanical manipulators operating power wrenches to secure and release the filter cartridge. The filter cartridge is adapted to make it easy to change a filter element by using a master-slave manipulator at a shielded window station. 6 figs.

Ross, M.J.; Zaladonis, L.A.

1987-07-22T23:59:59.000Z

65

Improving Seasonal Forecast Skill of North American Surface Air Temperature in Fall Using a Postprocessing Method  

Science Journals Connector (OSTI)

A statistical postprocessing approach is applied to seasonal forecasts of surface air temperatures (SAT) over North America in fall, when the original uncalibrated predictions have little skill. The data used are ensemble-mean seasonal forecasts ...

XiaoJing Jia; Hai Lin; Jacques Derome

2010-05-01T23:59:59.000Z

66

Distribution of small dispersive coal dust particles and absorbed radioactive chemical elements in conditions of forced acoustic resonance in iodine air filter at nuclear power plant  

E-Print Network [OSTI]

The physical features of distribution of the small dispersive coal dust particles and the adsorbed radioactive chemical elements and their isotopes in the absorber with the granular filtering medium with the cylindrical coal granules were researched in the case of the intensive air dust aerosol stream flow through the iodine air filter (IAF). It was shown that, at the certain aerodynamic conditions in the IAF, the generation of the acoustic oscillations is possible. It was found that the acoustic oscillations generation results in an appearance of the standing acoustic waves of the air pressure (density) in the IAF. In the case of the intensive blow of the air dust aerosol, it was demonstrated that the standing acoustic waves have some strong influences on both: 1) the dynamics of small dispersive coal dust particles movement and their accumulation in the IAF; 2) the oversaturation of the cylindrical coal granules by the adsorbed radioactive chemical elements and their isotopes in the regions, where the antinodes of the acoustic waves are positioned. Finally, we completed the comparative analysis of the theoretical calculations with the experimental results, obtained for the cases of: 1) the experimental aerodynamic modeling of physical processes of the absorbed radioactive chemical elements and their isotopes distribution in the IAF; and 2) the gamma-activation spectroscopy analysis of the absorbed radioactive chemical elements and their isotopes distribution in the IAF. We made the innovative propositions on the necessary technical modifications with the purpose to improve the IAF technical characteristics and increase its operational time at the nuclear power plant (NPP), going from the completed precise characterization of the IAF parameters at the long term operation.

Oleg P. Ledenyov; Ivan M. Neklyudov

2013-06-14T23:59:59.000Z

67

Use of EIChroM`s TRU resin in the determination of americium, plutonium and uranium in air filter and water samples  

SciTech Connect (OSTI)

TRU Resin, an extraction chromatographic material (octyl (phenyl)-N,Ndiisobutylcarbamoyl-methylphosphene oxide (CMPO) dissolved in tributyl phosphate (TBP)) manufactured by EIChroM Industries, was tested for its actinide sorption and desorption characteristics. A study was initiated to demonstrate the effectiveness of extracting plutonium, americium and uranium from water and air filter samples from the Environmental Measurements Laboratory`s Quality Assessment Program (QAP), and the effectiveness of subsequent desorption of one chemical species at a time in order to prepare each of them for a spectrometry. Crossover of plutonium into the americium fraction with the TRU Resin was observed and could not be eliminated while using TRU Resin only. However, prior extraction of plutonium using an anion exchange resin can overcome this problem. A method for the determination of americium is proposed which combines the extraction of plutonium onto Bio-Rad AG 1-X8 anion exchange resin with the extraction of americium using the TRU Resin. This method was tested on three triplicate sets of QAP air filters and two triplicate sets of QAP water samples. The recoveries ranged from 70 to 90 percent, and the results were identical to those obtained by the existing methods. The time required to perform the analysis for americium was shortened from 5 weeks to 1 week.

Berne, A.

1995-12-01T23:59:59.000Z

68

American Institute of Aeronautics and Astronautics Investigation of Transpiration Cooling Effectiveness for Air-  

E-Print Network [OSTI]

= Coolant Fluid P = Pressure w = Wall T = Temperature m = Matrix TPS = Thermal Protection System i = Initial The thermal management of air-breathing vehicles presents formidable challenges. The high dynamic pressure and the need for a reusable Thermal Protection System (TPS) are stringent requirements. The work presented

Texas at Arlington, University of

69

Air-Quality Data from NARSTO (North American Research Strategy for Tropospheric Ozone)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

NARSTO is a public/private partnership dedicated to improving management of air quality in North America. It was established on February 13, 1995 when representatives of Canada, the United States, and Mexico signed the NARSTO Charter in a ceremony at the White House. The Department of Energy is one of the charter members providing funding. The central programmatic goal of NARSTO is to provide data and information for use in the determination of workable, efficient, and effective strategies for local and regional ozone and fine particle management. Since its founding, NARSTO has completed three major scientific Assessments of critical air quality management issues. NARSTO maintains the Quality Systems Science Center and the NARSTO Data Archive for storing data from NARSTO Affiliated Research Activities and making these data available to the scientific community. NARSTO also facilitates activities, such as the Reactivity Research Working Group, which provide critical reviews of the state of the science in areas of interest to air quality policy makers. In January 1997, the U.S. Department of Energy's Environmental Sciences Division announced their sponsorship of the NARSTO Quality Systems Science Center (QSSC). The QSSC is located at the Oak Ridge National Laboratory within the Carbon Dioxide Information Analysis Center (CDIAC). Quality Assurance and Data Management assistance and guidelines are provided by the QSCC, along with access to data files. The permanent data archive is maintained by the NASA EOSDIS Distributed Active Archive Center at the Langley Research Center. The archived data can be reached by a link from the QSSC.(Specialized Interface) See also the NARSTO web site at http://www.narsto.org/

70

Perceptions of an Air Campaign: the 1991 Persian Gulf War as portrayed by major American print media sources.  

E-Print Network [OSTI]

??On 16 January 1991, a coalition of nations led by the United States launched a series of air strikes against Iraq to force that country… (more)

Padavich, Andrew J

2007-01-01T23:59:59.000Z

71

Physical and Chemical Characterization of Kuwaiti Atmospheric Dust and Synthetic Dusts: Effects on the Pressure Drop and Fractional Efficiency of HEPA Filters  

E-Print Network [OSTI]

The importance of clean air to the indoor air quality affecting the well-being of human occupants and rising energy consumption has highlighted the critical role of air filter performance. Actual performance of air filters installed in air handling...

Al-Attar, I.; Wakeman, R. J.; Tarleton, E. S.; Husain, A.

2010-01-01T23:59:59.000Z

72

Koch Filter and DOW Teaming Profile  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Koch Filter Corporation Dow Chemical Koch Filter Corporation Dow Chemical 4411-A Darien Street 2301 Brazosport Boulevard Houston, TX 77028 Freeport, TX 77541 Business: HVAC Filter Manufacturer Business: Chemical Manufacturer Bob Sheppard John Theile Regional Sales Manager Reliability Engineer Phone: 713-672-6550 Phone: 979-238-1894 Email: bobs@kochfilter.com Email: jptheile@dow.com Koch Filter saves Dow $156,000 by improving air flow to turbines Project Scope Koch Filter Corporation evaluated the turbine operation at a Dow Chemical facility. They determined that the gas turbine's air intake system was undersized and pre-filters had an initial resistance that was too high, causing the turbine to be "starved" for air. Koch replaced these filters with a better filter that

73

Indoor air pollution: a public health perspective  

Science Journals Connector (OSTI)

...control tobacco smoke or gas adsorbers, air filters, and electrostatic tion by-products...ventilation air; formaldehyde sorbant filters Behavioral adjustment: Reduction in human...monitoring equipment, and performance of HVAC systems Table 4. Components of comprehensive...

JD Spengler; K Sexton

1983-07-01T23:59:59.000Z

74

Ozone decomposing filter  

DOE Patents [OSTI]

In an improved ozone decomposing air filter carbon fibers are held together with a carbonized binder in a perforated structure. The structure is made by combining rayon fibers with gelatin, forming the mixture in a mold, freeze-drying, and vacuum baking.

Simandl, Ronald F. (Farragut, TN); Brown, John D. (Harriman, TN); Whinnery, Jr., LeRoy L. (Dublin, CA)

1999-01-01T23:59:59.000Z

75

Development of a Non Air-assisted Thermal Regenerator | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Development of an Active Regeneration Diesel Particulate Filter System Blowers for Air Assisted Diesel Particulate Filter Regeneration SCR Technologies for NOx Reduction...

76

PLUTONIUM-URANIUM EXTRACTION (PUREX) FACILITY ALARACT DEMONSTRATION FOR FILTER HOUSING  

SciTech Connect (OSTI)

This document presents an As Low As Reasonably Achievable Control Technology (ALARACT) demonstration for evaluating corrosion on the I-beam supporting filter housing No.9 for the 291-A-l emission unit of the Plutonium-Uranium Extraction (PUREX) Facility, located in the 200 East Area of the Hanford Site. The PUREX facility is currently in surveillance and maintenance mode. During a State of Washington, Department of Health (WDOH) 291-A-l emission unit inspection, a small amount of corrosion was observed at the base of a high-efficiency particulate air (HEPA) filter housing. A series of internal and external inspections identified the source of the corrosion material as oxidation of a small section of one of the carbon steel I-beams that provides support to the stainless steel filter housing. The inspections confirmed the corrosion is isolated to one I-beam support location and does not represent any compromise of the structural support or filter housing integrity. Further testing and inspections of the support beam corrosion and its cause were conducted but did not determine the cause. No definitive evidence was found to support any degradation of the housing. Although no degradation of the housing was found, a conservative approach will be implemented. The following actions will be taken: (1) The current operating filter housing No.9 will be removed from service. (2) The only remaining available filter housings (No.1, No.2, and No.3) will be placed in service. These filter housings have new HEPA filters fitted with stainless steel frames and faceguards which were installed in the spring of 2007. (3) Filter housings No.5 and No.10 will be put on standby as backups. To document the assessment of the unit, a draft ALARACT filter housing demonstration for the PUREX filter housing was prepared, and informally provided to WDOH on August 7, 2008. A follow up WDOH response to the draft ALARACT filter housing demonstration for the PUREX filter housing questioned whether deteriorated galvanized filter faceguards discovered during an internal filter housing inspection met American Society of Mechanical Engineers (ASME) AG-l or Military Specification (MIL) 51068 standards. The filter system was designed and installed prior to the issuance of AG-l, February 1986; however, MIL 51068 did require galvanized faceguards. The faceguards are not necessary for filtration or structural purposes; it is concluded that the system is in compliance with the intent of the applicable standard. Appendix B provides supporting information to address this issue.

LEBARON GJ

2008-11-25T23:59:59.000Z

77

Polish - American Heritage, Italian - American Heritage, German...  

Broader source: Energy.gov (indexed) [DOE]

Polish - American Heritage, Italian - American Heritage, German - American Heritage Months Polish - American Heritage, Italian - American Heritage, German - American Heritage...

78

Filtering apparatus  

DOE Patents [OSTI]

A vertical vessel having a lower inlet and an upper outlet enclosure separated by a main horizontal tube sheet. The inlet enclosure receives the flue gas from a boiler of a power system and the outlet enclosure supplies cleaned gas to the turbines. The inlet enclosure contains a plurality of particulate-removing clusters, each having a plurality of filter units. Each filter unit includes a filter clean-gas chamber defined by a plate and a perforated auxiliary tube sheet with filter tubes suspended from each tube sheet and a tube connected to each chamber for passing cleaned gas to the outlet enclosure. The clusters are suspended from the main tube sheet with their filter units extending vertically and the filter tubes passing through the tube sheet and opening in the outlet enclosure. The flue gas is circulated about the outside surfaces of the filter tubes and the particulate is absorbed in the pores of the filter tubes. Pulses to clean the filter tubes are passed through their inner holes through tubes free of bends which are aligned with the tubes that pass the clean gas.

Haldipur, Gaurang B. (Monroeville, PA); Dilmore, William J. (Murrysville, PA)

1992-01-01T23:59:59.000Z

79

Removal of residual particulate matter from filter media  

DOE Patents [OSTI]

A method for removing residual filter cakes that remain adhered to a filter after typical particulate removal methodologies have been employed, such as pulse-jet filter element cleaning, for all cleanable filters used for air pollution control, dust control, or powder control.

Almlie, Jay C; Miller, Stanley J

2014-11-11T23:59:59.000Z

80

Ozone Removal by Filters Containing Activated Carbon: A Pilot Study  

SciTech Connect (OSTI)

This study evaluated the ozone removal performance of moderate-cost particle filters containing activated carbon when installed in a commercial building heating, ventilating, and air conditioning (HVAC) system. Filters containing 300 g of activated carbon per 0.09 m2 of filter face area were installed in two 'experimental' filter banks within an office building located in Sacramento, CA. The ozone removal performance of the filters was assessed through periodic measurements of ozone concentrations in the air upstream and downstream of the filters. Ozone concentrations were also measured upstream and downstream of a 'reference' filter bank containing filters without any activated carbon. The filter banks with prefilters containing activated carbon were removing 60percent to 70percent of the ozone 67 and 81 days after filter installation. In contrast, there was negligible ozone removal by the reference filter bank without activated carbon.

Fisk, William; Spears, Mike; Sullivan, Douglas; Mendell, Mark

2009-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Padding with Compressed Air  

E-Print Network [OSTI]

We commonly find plants using padding to transport liquids or light solids short distances from tankers into storage tanks. Padding can wreck havoc in compressed air systems with limited storage, undersized cleanup equipment (dryers and filters...

Beals, C.

2004-01-01T23:59:59.000Z

82

Diesel Particulate Filters and NO2 Emission Limits | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Filters and NO2 Emission Limits Diesel Particulate Filters and NO2 Emission Limits EPAs New air quality standards for NO2 will impact future DPF designs deer09ibrahim.pdf More...

83

Ozone removal by HVAC filters  

Science Journals Connector (OSTI)

Residential and commercial HVAC filters that have been loaded with particles during operation in the field can remove ozone from intake or recirculated air. However, knowledge of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial buildings is incomplete. We measured the ozone removal efficiencies of clean (unused) fiberglass, clean synthetic filters, and field-loaded residential and commercial filters in a controlled laboratory setting. For most filters, the ozone removal efficiency declined rapidly but converged to a non-zero (steady-state) value. This steady-state ozone removal efficiency varied from 0% to 9% for clean filters. The mean steady-state ozone removal efficiencies for loaded residential and commercial filters were 10% and 41%, respectively. Repeated exposure of filters to ozone following a 24-h period of no exposure led to a regeneration of ozone removal efficiency. Based on a theoretical scaling analysis of mechanisms that are involved in the ozone removal process, we speculate that the steady-state ozone removal efficiency is limited by reactant diffusion out of particles, and that regeneration is due to internal diffusion of reactive species to sites available to ozone for reaction. Finally, by applying our results to a screening model for typical residential and commercial buildings, HVAC filters were estimated to contribute 22% and 95%, respectively, of total ozone removal in HVAC systems.

P. Zhao; J.A. Siegel; R.L. Corsi

2007-01-01T23:59:59.000Z

84

Disaggregating Data on Asian American and Pacific Islander Women to Provide New Insights on Potential Exposures to Hazardous Air Pollutants in California  

Science Journals Connector (OSTI)

...levels of pollutants, including air pollution (28-32 ). These observations...environmental exposures, particularly air pollution, for the AAPI population, taking...help guide efforts to cut toxic air pollution. NATA has modeled annual average...

Thu Quach; Ruiling Liu; David O. Nelson; Susan Hurley; Julie Von Behren; Andrew Hertz; and Peggy Reynolds

2014-11-01T23:59:59.000Z

85

Building Efficiency and Indoor Air Quality - You Can Have Both  

E-Print Network [OSTI]

with added or special filtration. This allows more air to be recirculated but has specific limitations. Filters can remove large particulates and some chemical contaminants by changing the filter media. However, a minimum amount of fresh air, approximately 20...

Kettler, G. J.

1998-01-01T23:59:59.000Z

86

DOE-HDBK-1169-2003; DOE Handbook Nuclear Air Cleaning Handbook  

Broader source: Energy.gov (indexed) [DOE]

i i INTRODUCTION The 4th edition of the Nuclear Air Cleaning Handbook succeeds three previous editions: ERDA 76-21, Nuclear Air Cleaning Handbook (1976); ORNL/NSIC-65, Design, Construction and Testing of High-Efficiency Air Filtration Systems for Nuclear Applications (1970); and NSIC-13, Filters, Sorbents, and Air Cleaning Systems as Engineered Safeguards in Nuclear Installations (1966). It benefits from over 25 years of industry experience since the previous edition was published. Along with U.S. Nuclear Regulatory Commission documents and consensus standards such as the American Society of Mechanical Engineers (ASME) Code On Nuclear Air and Gas Treatment (ASME AG-1), this handbook addresses systems and equipment used in nuclear facilities to capture and control radioactive

87

Assessment and Improvements of the CBE Underfloor Air Distribution (UFAD) Cooling Load Design Tool  

E-Print Network [OSTI]

Underfloor air distribution (UFAD) design guide. AmericanUnderfloor Air Distribution (UFAD) Cooling Load Design Toolload design tool for underfloor air distribution (UFAD)

Chen, Bin

2014-01-01T23:59:59.000Z

88

CHAMPS-Multizone?A Combined Heat, Air, Moisture and Pollutant Simulation Environment for Whole-building Performance Analysis  

E-Print Network [OSTI]

supply air temperature HVAC filter (only in filter case) OAof HVAC air handler as supply and return “zones” Filters canfilter efficiency for extensive property E Two different types of HVAC

Feng, Wei

2014-01-01T23:59:59.000Z

89

Evaluation of HEPA filter service life  

SciTech Connect (OSTI)

Rocky Flats Environmental Technology Site (RFETS), has approximately 10,000 High Efficiency Particulate Air (HEPA) Filters installed in a variety of filter plenums. These ventilation/filtration plenum systems are used to control the release of airborne particulate contaminates to the environment during normal operations and potential accidents. This report summarizes the results of destructive and non-destructive tests on HEPA filters obtained from a wide variety of ages and service conditions. These tests were performed to determine an acceptable service life criteria for HEPA filters used at Rocky Flats Environmental Technology Site (RFETS). A total of 140 filters of various ages (1972 to 1996) and service history (new, aged unused, used) were tested. For the purpose of this report, filter age from manufacture date/initial test date to the current sample date was used, as opposed to the actual time a filter was installed in an operating system.

Fretthold, J.K.; Stithem, A.R.

1997-07-14T23:59:59.000Z

90

Assessment of organic compound exposures, thermal comfort parameters, and HVAC system-driven air exchange rates in public school portable classrooms in California  

E-Print Network [OSTI]

no no, y e s - only HVAC filters: sizes, when changed 68%n=2) (n=19) 100% no 95% no Current HVAC air filter was notoriginal When HVAC air filter was last changed (reported as

Shendell, Derek Garth

2010-01-01T23:59:59.000Z

91

Maintaining Your Air Conditioner | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Maintaining Your Air Conditioner Maintaining Your Air Conditioner Maintaining Your Air Conditioner June 18, 2013 - 6:20pm Addthis Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. What does this mean for me? Regular maintenance keeps your air conditioner running as efficiently as possible. Maintaining your air conditioner will save you money by extending the unit's life. An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.

92

Maintaining Your Air Conditioner | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Maintaining Your Air Conditioner Maintaining Your Air Conditioner Maintaining Your Air Conditioner June 18, 2013 - 6:20pm Addthis Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. Replacing or cleaning air conditioner filters is a critical maintenance task. | Photo courtesy of ©iStockphoto/firemanYU. What does this mean for me? Regular maintenance keeps your air conditioner running as efficiently as possible. Maintaining your air conditioner will save you money by extending the unit's life. An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.

93

Particle loading rates for HVAC filters, heat exchangers, and ducts Nomenclature  

E-Print Network [OSTI]

Particle loading rates for HVAC filters, heat exchangers, and ducts Nomenclature Afl surface area of floor (m2 ) bf fraction of bypass flow around the filter (dimensionless) Cout outdoor concentration on the filter per volume of air (mg/lm m3 ) Mf,tot total mass deposited on the filter per month of operation (g

Siegel, Jeffrey

94

Evaluation of HVAC filters as a sampling mechanism for indoor microbial communities  

E-Print Network [OSTI]

Evaluation of HVAC filters as a sampling mechanism for indoor microbial communities Federico Noris Fungi Microbial community HVAC filter Settled dust Air a b s t r a c t HVAC filters are in place of bacterial and fungal concentrations and communities in HVAC filter dust and other sampling locations

Siegel, Jeffrey

95

American Institute of Aeronautics and Astronautics, Infotech@Aerospace Conference, Paper No. 2005-7077 A Small Semi-Autonomous Rotary-Wing Unmanned Air  

E-Print Network [OSTI]

-7077 1 A Small Semi-Autonomous Rotary-Wing Unmanned Air Vehicle (UAV) Scott D. Hanford* , Lyle N. Long such as the Fire Scout and Hummingbird currently have the capability to fly autonomously, land in a specific

96

Emergency sacrificial sealing method in filters, equipment, or systems  

DOE Patents [OSTI]

A system seals a filter or equipment component to a base and will continue to seal the filter or equipment component to the base in the event of hot air or fire. The system includes a first sealing material between the filter or equipment component and the base; and a second sealing material between the filter or equipment component and the base and proximate the first sealing material. The first sealing material and the second seal material are positioned relative to each other and relative to the filter or equipment component and the base to seal the filter or equipment component to the base and upon the event of fire the second sealing material will be activated and expand to continue to seal the filter or equipment component to the base in the event of hot air or fire.

Brown, Erik P

2014-09-30T23:59:59.000Z

97

California Energy Standards Recognize the Importance of Filter Selection- Building America Top Innovation  

Broader source: Energy.gov [DOE]

This 2014 Top Innovation describes Building America research on HVAC air filter sizing that prompted a change in the California Title 24 Energy Code to encourage the use of higher MERV filters without degrading HVAC performance.

98

A Survey and Critical Review of the Literature on Indoor Air Quality, Ventilation and Health Symptoms in Schools  

E-Print Network [OSTI]

after which the filters in the HVAC systems were sprayedPoor HVAC Condensation Drain Poor Access to Filters, etc.Low Filter Efficiency Poor Outdoor Air Intake Location HVAC

Daisey, Joan M.

2010-01-01T23:59:59.000Z

99

Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor -Global  

E-Print Network [OSTI]

PENNSTATE Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor - Global Overview The purpose of this project is to develop a heating, ventilation, and air conditioning (HVAC) monitoring a residential, forced flow, multi-zone HVAC filter needs to be replaced, and then alerts the users

Demirel, Melik C.

100

Evaluation of Oil Bypass Filter Technology on Heavy-Duty Vehicles  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(Advanced Vehicle Testing Activity) (Advanced Vehicle Testing Activity) Evaluation of Oil Bypass Filter Technology on Heavy-Duty Vehicles James Francfort American Filtration and Separations Society April 2005 Presentation Outline * Background & Objectives * Oil bypass filters - features & reported benefits * INL testing method * puraDYN oil bypass filters * Refined Global Solutions (RGS) oil bypass filters * Testing results & trends * Particulate and ferrography testing * Initial INL Oil Bypass Filter Economics * Potential fleet oil savings * Testing Status Bypass Filter Evaluation - Background * Funded by the U.S. Department of Energy's FreedomCAR & Vehicle Technologies Program (Advanced Vehicle Testing Activity) * Vehicles operated by Idaho National Laboratory's Fleet Operations group * Idaho National Laboratory

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

MICROCHEMICALJOURNAL39, 160-165Hydrocarbons in Air  

E-Print Network [OSTI]

from Waters Associates. Water used was deionized, distilled, and hydrocarbon filtered (BarnsteadMICROCHEMICALJOURNAL39, 160-165Hydrocarbons in Air to extract polycyclic aromatic hydrocarbons (PAH) from air particulate sampleswas investigated. High

Canberra, University of

102

Cordierite silicon nitride filters  

SciTech Connect (OSTI)

The objective of this project was to develop a silicon nitride based crossflow filter. This report summarizes the findings and results of the project. The project was phased with Phase I consisting of filter material development and crossflow filter design. Phase II involved filter manufacturing, filter testing under simulated conditions and reporting the results. In Phase I, Cordierite Silicon Nitride (CSN) was developed and tested for permeability and strength. Target values for each of these parameters were established early in the program. The values were met by the material development effort in Phase I. The crossflow filter design effort proceeded by developing a macroscopic design based on required surface area and estimated stresses. Then the thermal and pressure stresses were estimated using finite element analysis. In Phase II of this program, the filter manufacturing technique was developed, and the manufactured filters were tested. The technique developed involved press-bonding extruded tiles to form a filter, producing a monolithic filter after sintering. Filters manufactured using this technique were tested at Acurex and at the Westinghouse Science and Technology Center. The filters did not delaminate during testing and operated and high collection efficiency and good cleanability. Further development in areas of sintering and filter design is recommended.

Sawyer, J.; Buchan, B. (Acurex Environmental Corp., Mountain View, CA (United States)); Duiven, R.; Berger, M. (Aerotherm Corp., Mountain View, CA (United States)); Cleveland, J.; Ferri, J. (GTE Products Corp., Towanda, PA (United States))

1992-02-01T23:59:59.000Z

103

Air Conditioning  

Science Journals Connector (OSTI)

Air Conditioning ... CHEMISTS and engineers use air conditioning as a valuable tool in more than two hundred industries. ... Air conditioning is a tool with many facets. ...

MARGARET INGELS

1938-02-10T23:59:59.000Z

104

Room air monitor for radioactive aerosols  

DOE Patents [OSTI]

A housing assembly for use with a room air monitor for simultaneous collection and counting of suspended particles includes a casing containing a combination detector-preamplifier system at one end, a filter system at the other end, and an air flow system consisting of an air inlet formed in the casing between the detector-preamplifier system and the filter system and an air passageway extending from the air inlet through the casing and out the end opposite the detector-preamplifier combination. The filter system collects suspended particles transported directly through the housing by means of the air flow system, and these particles are detected and examined for radioactivity by the detector-preamplifier combination. 2 figs.

Balmer, D.K.; Tyree, W.H.

1987-03-23T23:59:59.000Z

105

Diesel particulate filters  

Science Journals Connector (OSTI)

Is the broad market introduction of diesel particulate filters throughout Europe wishful thinking or reality? The challenges facing the introduction of diesel particulate filters with a fuel-borne catalyst...

Pierre Macaudière; Laurent Rocher; Wolfgang Naschke

2004-04-01T23:59:59.000Z

106

Understanding the Basics of Compressed Air Systems  

E-Print Network [OSTI]

, contaminated filters, conversion to electrically operated hoists, and the use of centrifugal fans or compressed air with pressure regulators to purge control cabinets. Finally, a review of compressor technologies with typical cfm, pressure ranges, and price...

Herron, D. J.

107

Adaptive and Temporallydependent Document Filtering  

E-Print Network [OSTI]

Adaptive and Temporally­dependent Document Filtering een wetenschappelijke proeve op het gebied van . . . . . . . . . . . . . . . . . . . . . 1 1.2 Document Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Filtering Filtering Track 57 5.1 What is TREC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 5

Arampatzis, Avi

108

Determination of Radon and Thoron in Air  

Science Journals Connector (OSTI)

... A method for determination of radon favoured by the later investigators has been filtration of about 1 cubic metre of air ... of the activity found on the filter using a particle counter or ionization chamber ; radon passes through the filter and the short-lived activity observed is that of the four ...

G. B. COURTIER

1957-08-24T23:59:59.000Z

109

METAL MEDIA FILTERS, AG-1 SECTION FI  

SciTech Connect (OSTI)

One application of metal media filters is in various nuclear air cleaning processes including applications for protecting workers, the public and the environment from hazardous and radioactive particles. To support this application the development of the ASME AG-1 FI Standard on Metal Media has been under way for more than ten years. Development of the proposed section has required resolving several difficult issues associated with operating conditions (media velocity, pressure drop, etc.), qualification testing, and quality acceptance testing. Performance characteristics of metal media are dramatically different than the glass fiber media with respect to parameters like differential pressures, operating temperatures, media strength, etc. These differences make existing data for a glass fiber media inadequate for qualifying a metal media filter for AG-1. In the past much work has been conducted on metal media filters at facilities such as Lawrence Livermore National Laboratory (LLNL) and Savannah River National Laboratory (SRNL) to qualify the media as High Efficiency Particulate Air (HEPA) Filters. Particle retention testing has been conducted at Oak Ridge Filter Test Facility and at Air Techniques International (ATI) to prove that the metal media meets or exceeds the 99.97% particle retention required for a HEPA Filter. Even with his testing, data was lacking to complete an AG-1 FI Standard on metal media. With funding secured by Mississippi State University (MSU) from National Nuclear Security Administration (NNSA), a research test stand is being designed and fabricated at MSU's Institute for Clean Energy Technology (ICET) Facility to obtain qualification data on metal media. This in turn will support required data needed for the FI Standard. The paper will discuss in detail how the test stand at MSU will obtain the necessary data to complete the FI Standard.

Adamson, D.

2012-05-23T23:59:59.000Z

110

Filtering diesel exhaust gases with ceramic filters  

Science Journals Connector (OSTI)

Results are given from three test series on a ceramic filter for diesel exhausts. In the first and second series, use was made of diesel fuel (in the summer), while in...

A. Yu. Val’dberg; A. N. Tsedilin; T. O. Kosogorova…

2008-03-01T23:59:59.000Z

111

E-Print Network 3.0 - air service management Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2010 Summary: Management Policy: 2.1 ASHRAE: American Society of Heating, Refrigeration & Air-Conditioning Engineers 2... of the supplied air with the air already in the room. 3.0...

112

Secondary Pollutants from Ozone Reaction with Ventilation Filters and Degradation of Filter Media Additives  

SciTech Connect (OSTI)

Prior research suggests that chemical processes taking place on the surface of particle filters employed in buildings may lead to the formation of harmful secondary byproducts. We investigated ozone reactions with fiberglass, polyester, cotton/polyester and polyolefin filter media, as well as hydrolysis of filter media additives. Studies were carried out on unused media, and on filters that were installed for 3 months in buildings at two different locations in the San Francisco Bay Area. Specimens from each filter media were exposed to {approx}150 ppbv ozone in a flow tube under a constant flow of dry or humidified air (50percent RH). Ozone breakthrough was recorded for each sample over periods of {approx}1000 min; the ozone uptake rate was calculated for an initial transient period and for steady-state conditions. While ozone uptake was observed in all cases, we did not observe significant differences in the uptake rate and capacity for the various types of filter media tested. Most experiments were performed at an airflow rate of 1.3 L/min (face velocity = 0.013 m/s), and a few tests were also run at higher rates (8 to 10 L/min). Formaldehyde and acetaldehyde, two oxidation byproducts, were quantified downstream of each sample. Those aldehydes (m/z 31 and 45) and other volatile byproducts (m/z 57, 59, 61 and 101) were also detected in real-time using Proton-Transfer Reaction - Mass Spectrometry (PTR-MS). Low-ppbv byproduct emissions were consistently higher under humidified air than under dry conditions, and were higher when the filters were loaded with particles, as compared with unused filters. No significant differences were observed when ozone reacted over various types of filter media. Fiberglass filters heavily coated with impaction oil (tackifier) showed higher formaldehyde emissions than other samples. Those emissions were particularly high in the case of used filters, and were observed even in the absence of ozone, suggesting that hydrolysis of additives, rather than ozonolysis, is the main formaldehyde source in those filters. Emission rates of formaldehyde and acetaldehyde were not found to be large enough to substantially increase indoor concentrations in typical building scenarios. Nevertheless, ozone reactions on HVAC filters cannot be ignored as a source of low levels of indoor irritants.

Destaillats, Hugo; Chen, Wenhao; Apte, Michael; Li, Nuan; Spears, Michael; Almosni, Jérémie; Brunner, Gregory; Zhang, Jianshun (Jensen); Fisk, William J.

2011-05-01T23:59:59.000Z

113

System Effects of High Efficiency Filters in Homes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

System Effects of High Efficiency Filters in Homes System Effects of High Efficiency Filters in Homes Title System Effects of High Efficiency Filters in Homes Publication Type Conference Paper LBNL Report Number LBNL-6144E Year of Publication 2013 Authors Walker, Iain S., Darryl J. Dickerhoff, David Faulkner, and William J. N. Turner Conference Name ASHRAE Annual Conference Date Published 03/2013 Abstract Occupant concern about indoor air quality (IAQ) issues has led to the increased use of more effective air filters in residential heating and cooling systems. A drawback of improved filtration is that better filters tend to have more flow resistance. This can lead to lower system airflows that reduce heat exchanger efficiency, increase duct pressure that leads to increased air leakage for ducts and, in some case s, increased blower power consumption. There is currently little knowledge on the magnitude of these effects. In this study, the performance of ten central forced air systems was monitored for a year. The systems used either a Permanent Split Capacitor (PSC) or a Brushless Permanent Magnet (BPM) blower. Each system was operated with a range of filter efficiencies ranging from MERV 6 (the lowest currently permitted in ASHRAE Standard 62.2) up to MERV 16. Measurements were recorded every ten seconds for blower power, filter pressure drop, supply and return plenum pressures together with plenum and indoor temperatures. These detailed continuous measurements allowed observation of filter loading effects as well as the initial change in system performance when filters were swapped. The results of the field measurements were used in simulations to examine more general system performance effects for a wider range of climates. The field tests showed that system static pressures were highly influenced by filter selection, filter loading rates varied more from house to house than by MERV rating and overall were quite low in many of the homes. PSC motors showed reduced power and airflow as the filters loaded, but BPM motors attempted to maintain a constant airflow and increased their power to do so. The combined field test and simulation results from this study indicate that for MERV 10-13 filters the effects on energy use are small (5%) and usability. In systems using low MERV filters that are already close to blower performance limits the addition of a MERV 16 filter pushed the blowers to their performance limits.

114

Linear phase compressive filter  

DOE Patents [OSTI]

A phase linear filter for soliton suppression is in the form of a laddered series of stages of non-commensurate low pass filters with each low pass filter having a series coupled inductance (L) and a reverse biased, voltage dependent varactor diode, to ground which acts as a variable capacitance (C). L and C values are set to levels which correspond to a linear or conventional phase linear filter. Inductance is mapped directly from that of an equivalent nonlinear transmission line and capacitance is mapped from the linear case using a large signal equivalent of a nonlinear transmission line.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

115

Filter Replacement Activities Complete  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

airflow levels now that both filter units are operational. Additionally, teams can resume entries to evaluate the condition of the underground facility and verify that...

116

Investigation of Methods of Disinfection in an All-air System  

E-Print Network [OSTI]

The experiment of removing bacteria and indoor air particulates by a bag ventilation filter with synthetic media and an electrostatic filter was carried out, and the effect of killing bacteria by ozone application was also tested. The results show...

Wang, J.; Yan, Z.

2006-01-01T23:59:59.000Z

117

Compressed Air  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

BPA Utility Reimbursement Programs for Compressed Air Projects Customer Proposal Template Measurement & Verification Plan for Compressed Air CA 2006-15 A template for utilities to...

118

EML Surface Air Sampling Program, 1989 data  

SciTech Connect (OSTI)

Measurements of the concentrations of specific atmospheric radionuclides in air filter samples collected for the Environmental Measurements Laboratory's Surface Air Sampling Program (SASP) during 1989 indicate that anthropogenic radionuclides, in both hemispheres, were at or below the lower limits of detection for the analytical and sampling techniques that were used to measure them. During 1989, the occasional detection of {sup 137}Cs in some air filter samples may have resulted from resuspension of previously deposited debris. The naturally occurring radioisotopes that we measure, {sup 7}Be and {sup 210}Pb, continue to be detected in most air filter samples. The 1989 annual mean concentrations of {sup 7}Be at many of the sites were lower than those previously reported during the last decade. Possible changes in the atmospheric production of {sup 7}Be, variations in atmospheric circulation and precipitation patterns, as well as modifications to our sampling procedure many all have contributed to this observed trend. Short-term variations in the concentrations of {sup 7}Be and {sup 210}Pb continued to be observed at many sites at which weekly air filter samples were analyzed. These short-term fluctuations probably resulted from variations in meteorological factors. The data from our quality control samples indicate that the reliability of the air filter measurements are acceptable for their intended application.

Larsen, R.J.; Sanderson, C.G.

1991-08-01T23:59:59.000Z

119

EML Surface Air Sampling Program, 1989 data  

SciTech Connect (OSTI)

Measurements of the concentrations of specific atmospheric radionuclides in air filter samples collected for the Environmental Measurements Laboratory`s Surface Air Sampling Program (SASP) during 1989 indicate that anthropogenic radionuclides, in both hemispheres, were at or below the lower limits of detection for the analytical and sampling techniques that were used to measure them. During 1989, the occasional detection of {sup 137}Cs in some air filter samples may have resulted from resuspension of previously deposited debris. The naturally occurring radioisotopes that we measure, {sup 7}Be and {sup 210}Pb, continue to be detected in most air filter samples. The 1989 annual mean concentrations of {sup 7}Be at many of the sites were lower than those previously reported during the last decade. Possible changes in the atmospheric production of {sup 7}Be, variations in atmospheric circulation and precipitation patterns, as well as modifications to our sampling procedure many all have contributed to this observed trend. Short-term variations in the concentrations of {sup 7}Be and {sup 210}Pb continued to be observed at many sites at which weekly air filter samples were analyzed. These short-term fluctuations probably resulted from variations in meteorological factors. The data from our quality control samples indicate that the reliability of the air filter measurements are acceptable for their intended application.

Larsen, R.J.; Sanderson, C.G.

1991-08-01T23:59:59.000Z

120

Stakeholder Engagement and Outreach: Native American Resources  

Wind Powering America (EERE)

Resources Resources This page lists resources and tools specifically for Native Americans. Read personal interviews with Native Americans who have experience installing wind power on Native American lands, find wind resource maps that have Indian Reservation boundaries, and watch a video about installing wind power on Native American lands. Search the Stakeholder Engagement and Outreach initiative's Database Choose a Type of Information All News Publications Web Resource Videos Choose # of Records per Page Default (10 per page) 5 25 50 To search the titles, enter a word or phrase. Start Search Clear Contents Total of 42 records found. Page 1 of 9, Sorted by descending date Filtered by: Native Americans 1 2 3 4 5 6 7 8 9 Next Page >> Date sort by ascending date sort by descending date State sort by ascending state sort by descending state Type of Information Program Area Title sort by ascending title sort by descending title

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Rayleigh wave filter for three-component seismic data  

E-Print Network [OSTI]

RAYLEIGH WAVE FILTER FOR THREE ? COMPONENT SEISMIC DATA A Thesis by SYED ALI ASIF ZAIDI Submitted to the Office of Graduate Studies of Texas A&M Lrniversity in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1991 Major Subject: Geophysics RAYLEIGH WAVE FILTER FOR THREE ? COMPONENT SEISMIC DATA A Thesis SYED ALI ASIF ZAIDI Approved as to style and content by: Steven . Harder air of Committee) Joel S. Watkins (Member) Ronald M. Brimhall (1...

Zaidi, Syed Ali Asif

2012-06-07T23:59:59.000Z

122

MidAmerican Energy (Electric) - Residential Energy Efficiency Rebate  

Broader source: Energy.gov (indexed) [DOE]

MidAmerican Energy (Electric) - Residential Energy Efficiency MidAmerican Energy (Electric) - Residential Energy Efficiency Rebate Programs MidAmerican Energy (Electric) - Residential Energy Efficiency Rebate Programs < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Program Info Start Date 1/1/2011 Expiration Date 12/31/2012 State Illinois Program Type Utility Rebate Program Rebate Amount Room Air Conditioners: $25 Central Air Conditioners: $100-$200 Heat Pumps: $100-$400 Ground-source Heat Pumps: $1000-$2000 Desuperheaters: $100 Programmable Thermostat: $20 Provider MidAmerican Energy Company MidAmerican Energy offers a variety of incentives for residential customers to improve the energy efficiency of participating homes. Electric customers of MidAmerican Energy qualify for rebates on programmable thermostats, air

123

Literature Review of Air Pollution Control Biofilters and Biotrickling  

E-Print Network [OSTI]

Literature Review of Air Pollution Control Biofilters and Biotrickling Filters for Odor Emission Standards for Hazardous Air Pollutants and Title V permitting) as well as local and state for the treatment of complex odorous waste air containing hydrogen sulfide (H2S), organic reduced sulfur com- pounds

124

Air Quality  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

What We Monitor & Why » What We Monitor & Why » Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. April 12, 2012 Real-time data monitoring for particulate matter An air monitoring field team member tests one of LANL's tapered element oscillating microbalance samplers, which collects real-time particulate matter data. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email LANL monitors air quality 24 hours a day, 365 days a year. Why we monitor air LANL monitors many different pathways in order to assess their impact on workers, the public, animals, and plants. We monitor the air around the Laboratory to ensure our operations are not affecting the air of nearby

125

Hacks and Filters  

Science Journals Connector (OSTI)

In this chapter you have learned that hacks and filters can be an important weapon ... in any CSS developer’s arsenal. However, hacks need to be used sparingly, and preferably ... resort. If you do need to use hacks

2006-01-01T23:59:59.000Z

126

Sampled data lattice filters  

E-Print Network [OSTI]

SAMPLED DATA LATTICE FILTERS A Thesis by WILLIAM TERRY THRIFT III Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1979 Major Subfect...: Electrical Engineering SAMPLED DATA LATTICE FILTERS A Thesis by WILLIAM TERRY THRIFT III Approved as to style and content by: (Chair an of Committee) (Hea f Department) (Member) (Member) (Member) (Member) December 1979 ABSTRACT Sampled Data...

Thrift, William Terry

2012-06-07T23:59:59.000Z

127

Kalman Filtering Jur van den Berg  

E-Print Network [OSTI]

Kalman Filtering Jur van den Berg #12;Kalman Filtering · (Optimal) estimation of the (hidden) state

van den Berg, Jur

128

Laser Noise Reduction in Air  

E-Print Network [OSTI]

Fluctuations of the white-light supercontinuum produced by ultrashort laser pulses in selfguided filaments (spatio-temporal solitons) in air are investigated. We demonstrate that correlations exist within the white-light supercontinuum, and that they can be used to significantly reduce the laser intensity noise by filtering the spectrum. More precisely, the fundamental wavelength is anticorrelated with the wings of the continuum, while conjugated wavelength pairs on both sides of the continuum are strongly correlated. Spectral filtering of the continuum reduces the laser intensity noise by 1.2 dB, showing that fluctuations are rejected to the edges of the spectrum.

Pierre Bejot; Jerome Kasparian; Estelle Salmon; Roland Ackermann; Nicolas Gisin; Jean-Pierre Wolf

2006-08-09T23:59:59.000Z

129

DOE-HDBK-1169-2003; DOE Handbook Nuclear Air Cleaning Handbook  

Broader source: Energy.gov (indexed) [DOE]

3-1 3-1 CHAPTER 3 FILTERS FOR THE NUCLEAR INDUSTRY 3.1 Introduction Filters are widely used in nuclear ventilation, air cleanup, and confinement systems to remove particulate matter from air and gas streams. Air filters are defined as porous structures through which air is passed to separate out entrained particulate matter. The word "filter" is derived from a word for the fabric called felt, pieces of which have been used for air and liquid filtration for hundreds of years. The porous structures of a filter may also be composed of granular material such as sand or fibers derived from cotton, minerals (glass, asbestos), metals, or a wide selection of plastic materials. For filtration purposes, the fibers may be woven or felted into a cloth or formed into a paper-like structure. Filters may also be constructed in the form of highly

130

Spectral purification and stabilization of an acousto-optic tunable filter based on water-filled solid-core microstructured fiber  

Science Journals Connector (OSTI)

Compared with its air-filled counterpart, experimental results show that the acousto-optic tunable filter employing water-filled microstructured fiber exhibits certain red shift in...

Qiu, Minghui; Zhang, Hao; Miao, Yinping; Liu, Bo; Liu, Lihui

131

Features of coal dust dynamics at action of differently oriented forces in granular filtering medium  

E-Print Network [OSTI]

The process of the coal dust particles transportation and structurization in the experimental horizontal model of air filter with the cylindrical coal adsorbent granules as in the iodine air filter at the nuclear power plant is researched. In the investigated case the vector of carrying away force of air flow and the vector of gravitation force are mutually perpendicular, and the scattering of the dust particles on the granules occurs in the normal directions. It is found that the phenomenon of non controlled spontaneous sharp increase of aerodynamic resistance in the iodine air filter under the big integral volumes of filtered air and the big masses of introduced coal dust particles is not observed at the described experimental conditions in distinction from the case of the parallel orientation of this forces as in the vertical iodine air filters at the nuclear power plant. The quantitative measurements of the main parameters of the process of the dust masses transportation and structurization are made on a developed experimental model of the iodine air filter with the cylindrical coal adsorbent granules.

I. M. Neklyudov; L. I. Fedorova; P. Ya. Poltinin; O. P. Ledenyov

2013-01-24T23:59:59.000Z

132

Filters for cathodic arc plasmas  

DOE Patents [OSTI]

Cathodic arc plasmas are contaminated with macroparticles. A variety of magnetic plasma filters has been used with various success in removing the macroparticles from the plasma. An open-architecture, bent solenoid filter, with additional field coils at the filter entrance and exit, improves macroparticle filtering. In particular, a double-bent filter that is twisted out of plane forms a very compact and efficient filter. The coil turns further have a flat cross-section to promote macroparticle reflection out of the filter volume. An output conditioning system formed of an expander coil, a straightener coil, and a homogenizer, may be used with the magnetic filter for expanding the filtered plasma beam to cover a larger area of the target. A cathodic arc plasma deposition system using this filter can be used for the deposition of ultrathin amorphous hard carbon (a-C) films for the magnetic storage industry.

Anders, Andre (Albany, CA); MacGill, Robert A. (Richmond, CA); Bilek, Marcela M. M. (Engadine, AU); Brown, Ian G. (Berkeley, CA)

2002-01-01T23:59:59.000Z

133

American Goldfinch  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

American Goldfinch American Goldfinch Name: Mary-Ellen Location: N/A Country: N/A Date: N/A Question: I happened on an American Goldfinch in my yard last week who could not fly. I captured it and now have it living in a large box. I have been feeding it commericial wild finch seed, niger seed and some sunflower seed. I have also provided a small cup of fine sand and a dish of water. Am I missing anything in it's diet? I had hoped to find someone to take it and care for it until it could fly again but have been unsuccessful so I may end up caring for it. It's wing is not visibly injured, however it can only flutter. I have been caring for it for 6 days now and it appears OK. Have also provided it with a small perch (branch) which it seems to use most of the time. Any other suggestions?

134

E-Print Network 3.0 - air pollutants gold Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in a reported American case did not occur until 1832, and the first reference to air pollution was in 1849... We have become accustomed to thinking of pollution ......

135

E-Print Network 3.0 - air pollutants characterizing Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: in a reported American case did not occur until 1832, and the first reference to air pollution was in 1849... Greenleaf Whittier characterized supporters of slavery as...

136

MidAmerican Energy (Electric) - Residential Energy Efficiency Rebate  

Broader source: Energy.gov (indexed) [DOE]

Electric) - Residential Energy Efficiency Electric) - Residential Energy Efficiency Rebate Programs MidAmerican Energy (Electric) - Residential Energy Efficiency Rebate Programs < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Appliances & Electronics Water Heating Program Info Expiration Date 12/31/2013 State South Dakota Program Type Utility Rebate Program Rebate Amount Electric Water Heaters: $50 Room Air Conditioning Unit: $40 Central Air Conditioning: $150 - $1625 Air-to-Air Heat Pumps: $150 - $1700 Add-on Heat Pumps: $150 - $1700 Provider MidAmerican Energy Company MidAmerican Energy offers a variety of incentives for residential customers to improve the energy efficiency of their homes. Eligible customers are eligible for rebates on water heaters, air conditioners, air-source heat

137

Multiple Filtering Strategy for the Automated Detection of Ethanol by Passive Fourier Transform Infrared Spectrometry  

Science Journals Connector (OSTI)

Digital filtering methods are evaluated for use in the automated detection of ethanol from passive Fourier transform infrared (FT-IR) data collected during laboratory and open-air...

Idwasi, Patrick O; Small, Gary W; Combs, Roger J; Knapp, Robert B; Kroutil, Robert T

2001-01-01T23:59:59.000Z

138

Effect of Diesel Oxidation Catalysts on the Diesel Particulate Filter Regeneration Process  

Science Journals Connector (OSTI)

Effect of Diesel Oxidation Catalysts on the Diesel Particulate Filter Regeneration Process ... A Diesel Particulate Filter (DPF) regeneration process was investigated during aftertreatment exhaust of a simulated diesel engine under the influence of a Diesel Oxidation Catalyst (DOC). ... Diesel particulate matter (PM) significantly contributes to urban air pollution and has often been associated with adverse health effects. ...

Leonardo Lizarraga; Stamatios Souentie; Antoinette Boreave; Christian George; Barbara D’Anna; Philippe Vernoux

2011-11-03T23:59:59.000Z

139

Airvest's Breath of Fresh Air  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7 7 The Cutting Edge: Airvest's Breath of Fresh Air Spray booths are a common sight in the industrial sector. Designed to remove pollutants during industrial processes such as spray painting or welding, a booth is a rectangular enclosure open on one side where the worker stands, and equipped on the opposite wall with a fan and filter arrangement to suck away the dirty air. The full-size mannequin in these photographs simulates a worker in a spray booth facing the exhaust filters. In experiments designed by LBL researcher Ashok Gadgil, smoke was released in front of the mannequin to simulate the spraying of paint in the booth. The photo on the left shows the spray booth during standard operation. The smoke-representing a pollutant-is entrained in the eddy that forms in

140

Evaluation of the Indoor Air Quality Procedure for Use in Retail Buildings  

E-Print Network [OSTI]

rating of the HVAC system’s particle filters is indicated inHVAC recirculation that accounts for particle removal by filtersHVAC penetration factor P H is driven by the filtration efficiency L, and that re-circulated air passes through the same filter

Dutton, Spencer M.

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Effectiveness of Germicidal UV Radiation for Reducing Fungal Contamination within Air-Handling Units  

Science Journals Connector (OSTI)

...and air-conditioning (HVAC) systems and is a potential...been found growing on air filters, insulation, and cooling...bioaerosols or when the HVAC system itself is contaminated...maintained high-quality filters within HVAC systems as well as portable...

Estelle Levetin; Richard Shaughnessy; Christine A. Rogers; Robert Scheir

2001-08-01T23:59:59.000Z

142

High efficiency particulate removal with sintered metal filters  

SciTech Connect (OSTI)

Because of their particle removal efficiencies and durability, sintered metal filters have been chosen for high efficiency particulate air (HEPA) filter protection in the off-gas treatment system for the proposed Idaho National Engineering Laboratory Transuranic Waste Treatment Facility. Process evaluation of sintered metal filters indicated a lack of sufficient process design data to ensure trouble-free operation. Subsequence pilot scale testing was performed with flyash as the test particulate. The test results showed that the sintered metal filters can have an efficiency greater than 0.9999999 for the specific test conditions used. Stable pressure drop characteristics were observed in pulsed and reversed flow blowback modes of operation. Over 4900 hours of operation were obtained with operating conditions ranging up to approximately 90/sup 0/C and 24 vol % water vapor in the gas stream.

Kirstein, B.E.; Paplawsky, W.J.; Pence, D.T.; Hedahl, T.G.

1981-01-01T23:59:59.000Z

143

DOE-HDBK-1169-2003; DOE Handbook Nuclear Air Cleaning Handbook  

Broader source: Energy.gov (indexed) [DOE]

4-1 4-1 CHAPTER 4 HOUSING DESIGN AND LAYOUT 4.1 Introduction This chapter discusses housing design and requirements for air cleaning units in which filters and/or adsorbers are installed (see Chapter 6, "Small Air Cleaning Units," for single filter housing design information). Two basic designs are addressed in this section: man-entry and side-access (see Figures 4.1 and 4.2). In addition, two side-access housing types are addressed-one utilizing square filters and the other radial flow/round filters (Figure 4.3). Both side-access designs are for housings with two or more filters and for system capacities greater than 2,000 cubic feet per minute (cfm). Single-filter inline housings, man-entry housings larger than 30 high- efficiency particulate air (HEPA) filters, and

144

Rotating drum filter  

DOE Patents [OSTI]

A perforated drum (10) rotates in a coaxial cylindrical housing (18) having three circumferential ports (19,22,23), and an axial outlet (24) at one end. The axis (11) is horizontal. A fibrous filter medium (20) is fed through a port (19) on or near the top of the housing (81) by a distributing mechanism (36) which lays a uniform mat (26) of the desired thickness onto the rotating drum (10). This mat (26) is carried by the drum (10) to a second port (23) through which dirty fluid (13) enters. The fluid (13) passes through the filter (26) and the cleaned stream (16) exits through the open end (15) of the drum (10) and the axial port (24) in the housing (18). The dirty filter material (20) is carried on to a third port (22) near the bottom of the housing (18) and drops into a receiver (31) from which it is continuously removed, cleaned (30), and returned (32) to the charging port (36) at the top. To support the filter mat, the perforated cylinder may carry a series of tines (40), shaped blades (41), or pockets, so that the mat (26) will not fall from the drum (10) prematurely. To minimize risk of mat failure, the fluid inlet port (23) may be located above the horizontal centerline (11).

Anson, Donald (Worthington, OH)

1990-01-01T23:59:59.000Z

145

Ceramic HEPA Filter Program  

SciTech Connect (OSTI)

Potential benefits of ceramic filters in nuclear facilities: (1) Short term benefit for DOE, NRC, and industry - (a) CalPoly HTTU provides unique testing capability to answer questions for DOE - High temperature testing of materials, components, filter, (b) Several DNFSB correspondences and presentations by DNFSB members have highlighted the need for HEPA filter R and D - DNFSB Recommendation 2009-2 highlighted a nuclear facility response to an evaluation basis earthquake followed by a fire (aka shake-n-bake) and CalPoly has capability for a shake-n-bake test; (2) Intermediate term benefit for DOE and industry - (a) Filtration for specialty applications, e.g., explosive applications at Nevada, (b) Spin-off technologies applicable to other commercial industries; and (3) Long term benefit for DOE, NRC, and industry - (a) Across industry, strong desire for better performance filter, (b) Engineering solution to safety problem will improve facility safety and decrease dependence on associated support systems, (c) Large potential life-cycle cost savings, and (d) Facilitates development and deployment of LLNL process innovations to allow continuous ventilation system operation during a fire.

Mitchell, M A; Bergman, W; Haslam, J; Brown, E P; Sawyer, S; Beaulieu, R; Althouse, P; Meike, A

2012-04-30T23:59:59.000Z

146

Best Practice for Energy Efficient Cleanrooms: Fan-FilterUnits  

SciTech Connect (OSTI)

The HVAC systems in cleanrooms may use 50 percent or more of the total cleanroom energy use. Fan energy use accounts for a significant portion (e.g., over 50%) of the HVAC energy use in cleanrooms such as ISO Classes 3, 4, or 5. Three types of air-handling systems for recirculating airflows are commonly used in cleanrooms: (1) fan-tower systems with pressurized plenum, (2) ducted HEPA systems with distributed-fans, and (3) systems with fan-filter units. Because energy efficiency of the recirculation systems could vary significantly from system type to system type, optimizing aerodynamic performance in air recirculation systems appears to be a useful approach to improve energy efficiency in cleanrooms. Providing optimal airflows through careful planning, design and operation, including air change rate, airflow uniformity, and airflow speed, is important for controlling particle contamination in cleanrooms. In practice, the use of fan-filter units (FFUs) in the air-handling system is becoming more and more popular because of this type of system may offer a number of advantages. Often modular and portable than traditional recirculation airflow systems, FFUs are easier to install, and can be easily controlled and monitored to maintain filtration performance. Energy efficiency of air handling systems using fan-filter units can, however, be lower than their counterparts and may vary significantly from system to system because of the difference in energy performance, airflow paths, and the operating conditions of FFUs.

Xu, Tengfang

2005-06-15T23:59:59.000Z

147

The Magnetic Centrifugal Mass Filter  

SciTech Connect (OSTI)

Mass filters using rotating plasmas have been considered for separating nuclear waste and spent nuclear fuel. We propose a new mass filter that utilizes centrifugal and magnetic confinement of ions in a way similar to the asymmetric centrifugal trap. This magnetic centrifugal mass filter is shown to be more proliferation resistant than present technology. This filter is collisional and produces well confined output streams, among other advantages. __________________________________________________

Abraham J. Fetterman and Nathaniel J. Fisch

2011-08-04T23:59:59.000Z

148

American Journal  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

American American Journal of Science JUNE 2007 GENERALIZATION OF GAS HYDRATE DISTRIBUTION AND SATURATION IN MARINE SEDIMENTS BY SCALING OF THERMODYNAMIC AND TRANSPORT PROCESSES GAURAV BHATNAGAR*, WALTER G. CHAPMAN*, GERALD R. DICKENS**, BRANDON DUGAN**, and GEORGE J. HIRASAKI* † ABSTRACT. Gas hydrates dominated by methane naturally occur in deep marine sediment along continental margins. These compounds form in pore space between the seafloor and a sub-bottom depth where appropriate stability conditions prevail. However, the amount and distribution of gas hydrate within this zone, and free gas below, can vary significantly at different locations. To understand this variability, we develop a one-dimensional numerical model that simulates the accumulation of gas hydrates in marine sediments due to upward and downward fluxes of methane over time. The model contains rigorous

149

Compressed Air Systems Audits - Why? And How?  

E-Print Network [OSTI]

% of the compressed air costs, most with little or no capital investment. Almost always, in the event of a capital outlay, energy savings alone afford less than one-year payback. Many energy utility companies energetically support these efforts, and some.... Secondly, join us in the definition of compressed air as a system, the totality of which is comprised of the Supply Side and the Demand Side. The Supply Side is the compressors and their controls, receivers (primary storage tanks), aftercoolers, filters...

Kemp, H. L.

2004-01-01T23:59:59.000Z

150

Experimental investigations of an all-fiber multireflector spectral filter for optical communications  

E-Print Network [OSTI]

spatially periodic refractive index variation in the fiber. The reflectance spectrum of the FBG filter is characterized by a single narrow peak with side lobes, and thus can be used as a bandpass filter [2]. The two mirror Fiber Fabry... in frequency is known as the free spectral range FSR . Practical two mirror FFPI filters make use of a cavity formed by an air gap between two dielectric mirrors [5,6]. An ideal spectral filter for optical communication would have flat in- band...

Lee, Jong-Seo

2004-09-30T23:59:59.000Z

151

Results from Evaluation of Proposed ASME AG-1 Section FI Metal Media Filters - 13063  

SciTech Connect (OSTI)

High efficiency particulate air (HEPA) filtration technology is commonly used in Department of Energy (DOE) facilities that require control of radioactive particulate matter (PM) emissions due to treatment or management of radioactive materials. Although HEPA technology typically makes use of glass fiber media, metal and ceramic media filters are also capable of filtering efficiencies beyond the required 99.97%. Sintered metal fiber filters are good candidates for use in DOE facilities due to their resistance to corrosive environments and resilience at high temperature and elevated levels of relative humidity. Their strength can protect them from high differential pressure or pressure spikes and allow for back pulse cleaning, extending filter lifetime. Use of these filters has the potential to reduce the cost of filtration in DOE facilities due to life cycle cost savings. ASME AG-1 section FI has not been approved due to a lack of protocols and performance criteria for qualifying section FI filters. The Institute for Clean Energy Technology (ICET) with the aid of the FI project team has developed a Section FI test stand and test plan capable of assisting in the qualification ASME AG-1 section FI filters. Testing done at ICET using the FI test stand evaluates resistance to rated air flow, test aerosol penetration and resistance to heated air of the section FI filters. Data collected during this testing consists of temperature, relative humidity, differential pressure, flow rate, upstream particle concentration, and downstream particle concentration. (authors)

Wilson, John A.; Giffin, Paxton K.; Parsons, Michael S.; Waggoner, Charles A. [Institute for Clean Energy Technology, Mississippi State University, 205 Research Blvd Starkville, MS 39759 (United States)] [Institute for Clean Energy Technology, Mississippi State University, 205 Research Blvd Starkville, MS 39759 (United States)

2013-07-01T23:59:59.000Z

152

Apparatus and method for removing particulate deposits from high temperature filters  

DOE Patents [OSTI]

A combustion of a fuel-air mixture is used to provide a high-temperature and high-pressure pulse of gaseous combustion products for the back-flush cleaning of ceramic filter elements contained in a barrier filter system and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products provided by the combustion of the fuel-air mixture is preferably divided into a plurality of streams each passing through a sonic orifice and conveyed to the open end of each filter element as a high pressure pulse which passes through the filter elements and dislodges dust cake supported on a surface of the filter element.

Nakaishi, Curtis V. (Morgantown, WV); Holcombe, Norman T. (McMurray, PA); Micheli, Paul L. (Morgantown, WV)

1992-01-01T23:59:59.000Z

153

American Samoa's Rebate Program Brings ENERGY STAR to Island | Department  

Broader source: Energy.gov (indexed) [DOE]

American Samoa's Rebate Program Brings ENERGY STAR to Island American Samoa's Rebate Program Brings ENERGY STAR to Island American Samoa's Rebate Program Brings ENERGY STAR to Island August 13, 2010 - 12:00pm Addthis American Samoa is located in the South Pacific Ocean, with temperature around 80 degrees year round. | Photo courtesy of Maleleg American Samoa is located in the South Pacific Ocean, with temperature around 80 degrees year round. | Photo courtesy of Maleleg Lindsay Gsell American Samoa, a small island of 66,000 residents in the Pacific Ocean, is a warm 80 degrees almost year round, but during the summer, the humidity can make it feel downright hot. Because of its remote location, appliances and electricity are costly - and until recently, home air conditioning units were fairly rare. Now thanks to a $100,000 grant through the American Recovery and

154

Nuclear Spin Filter  

Science Journals Connector (OSTI)

A "spin filter" for selecting metastable hydrogen, deuterium, or tritium atoms with a given nuclear spin magnetic quantum number (mI) has been built and tested. With the device installed in the Los Alamos "Lamb-shift" polarized-ion source, we have obtained a deuterium negative-ion beam with ? 55% spin-state purity for mI=1, 0, or -1. An improved magnetic field homogeneity in the apparatus is expected to increase the purity to ? 75%.

Joseph L. McKibben; George P. Lawrence; Gerald G. Ohlsen

1968-05-20T23:59:59.000Z

155

Filter Press Building  

E-Print Network [OSTI]

"FILTER PRESS BUILDING" AVON LAKE WATER POLLUTION CONTROL CENTER HEAT PUMP HEATING AND COOLING SYSTEM William M. Bush, P.E. The Cleveland Electric Illuminating Company Cleveland, Ohio ABSTRACT The high heat value of the plant's treated wa..." of the thousands of homes in the com munity, we were able to recommend a system of heat recovery refrigeration cycles that would provide space conditioning at a fraction of the cost of natural gas. The all-electric recommendation was accepted because...

Bush, W. M.

156

Electrically-Assisted Diesel Particulate Filter Regeneration...  

Broader source: Energy.gov (indexed) [DOE]

More Documents & Publications Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Electrically-Assisted Diesel Particulate Filter Regeneration...

157

Survival of bioaerosols in HVAC system photocatalytic filters  

Science Journals Connector (OSTI)

Abstract The survival of an experimental bioaerosol in photocatalytic and non-photocatalytic filters was investigated under UV-A or UV-C radiation exposure. To ensure the generation of reproducible bioaerosols in real operating conditions of Heating, Ventilation and Air Conditioning (HVAC) systems and their homogeneous coating on filters, a reactor with an optimal geometry was developed. The bacterial aerosol was generated from standardised bacterial suspensions and the Gram-negative bacterial model Escherichia coli was used as the experimental organism. The bioaerosol was characterised in terms of particle size distribution, reproducibility and stability over time. The coating of aerosolised cells on the filters was then studied. The total number of aerosolised E. coli cells was different from the amount of cultivable bacterial cells extracted from filters, probably resulting from the stress of the aerosolisation process. Damages to the outer membrane of E. coli cells were clearly observed through SEM and epifluorescent microscopy analysis. The influence of important physical parameters in the reactor-aerosolisation duration, frontal velocity and relative humidity- on the amount of aerosolised cells coated on filters were also investigated. Finally, the effects of UV-A or UV-C radiation were assessed on aerosolised microorganisms coated on HEPA photocatalytic filters and on photocatalytic or non-photocatalytic filters containing activated charcoal. The HEPA photocatalytic filters demonstrated a better disinfection efficiency with full damages of the aerosolised bacterial cells, probably resulting from an optimal contact between TiO2 coating and the microorganisms. In contrast, the use of filters with activated charcoal resulted in the apparition of an inactivation threshold that could be attributed to the penetration of aerosolised cells within the activated charcoal layer and the absence of contact with the photocatalyst. However, UV-C photocatalysis was able to inactivate faster and, at the same time, mineralise biological pollutants than UV-A.

S. Pigeot-Remy; J.C. Lazzaroni; F. Simonet; P. Petinga; C. Vallet; P. Petit; P.J. Vialle; C. Guillard

2014-01-01T23:59:59.000Z

158

CeraMem Filter Development Program  

SciTech Connect (OSTI)

In gasification systems, the ash and char that is suspended in the syngas stream must be removed prior to the gas stream`s introduction to other downstream air pollution control systems (e.g., hydrogen sulfide removal). The char, once captured, can be reinjected into the gasification reactors to increase the overall system efficiency. If the ash and char are not captured before the other downstream equipment, these solids can foul process piping or columns and cause downtime for the entire system. This paper describes, in general, a development program between Ceramem Separations and Foster Wheeler for a high temperature ceramic filtration system to be sold by their partnership, CeraFilter L.P. In addition, detailed test results of ceramic filters operating at conditions approaching those of high temperature combustors are discussed. The successful development of this hot gas filtration system based upon the Ceramem ceramic-membrane-coated, monolithic filter will help address the critical challenges of particulate removal under the severe conditions imposed by advanced fossil energy power systems.

Bishop, B. [CeraMem Corp., Waltham, MA (United States); Raskin, N. [CeraFilter L.P., San Diego, CA (United States)

1996-12-31T23:59:59.000Z

159

Air Pollution  

Science Journals Connector (OSTI)

Both natural processes and human activities contribute to air pollution, with the combustion of fossil fuels being the largest anthropogenic source of air pollutants. Adverse health effects (above all respiratory and cardiovascular complications), damage to crops, natural vegetation and materials, reduced visibility and changed radiation balance of the atmosphere are the major consequences of high concentrations of air pollutants. Technical fixes can sharply reduce emissions from large stationary sources and lower the rates of automotive emissions, but the rising number of vehicles and longer time spent on the road will call for more radical solutions to traffic-generated photochemical smog now present in all major urban areas.

V. Smil

2001-01-01T23:59:59.000Z

160

Features of coal dust dynamics at action of differently oriented forces in granular filtering medium  

E-Print Network [OSTI]

The process of the coal dust particles transportation and structurization in the experimental horizontal model of air filter with the cylindrical coal adsorbent granules as in the iodine air filter at the nuclear power plant is researched. In the investigated case the vector of carrying away force of air flow and the vector of gravitation force are mutually perpendicular, and the scattering of the dust particles on the granules occurs in the normal directions. It is found that the phenomenon of non controlled spontaneous sharp increase of aerodynamic resistance in the iodine air filter under the big integral volumes of filtered air and the big masses of introduced coal dust particles is not observed at the described experimental conditions in distinction from the case of the parallel orientation of this forces as in the vertical iodine air filters at the nuclear power plant. The quantitative measurements of the main parameters of the process of the dust masses transportation and structurization are made on a ...

Neklyudov, I M; Poltinin, P Ya; Ledenyov, O P

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Decomposition of formaldehyde by EPD photocatalyst filters in HVAC  

Science Journals Connector (OSTI)

This study used electrophoretic deposition (EPD) to apply titanium oxide (TiO2) coating on stainless steel filters and investigated the effectiveness of photocatalytic oxidation of formaldehyde by TiO2 under various conditions of heating ventilation air conditioning (HVAC). The results showed photocatalytic efficiency could reach 35.59% at 21 °C and 36.39% at 26 °C with 7 photocatalyst filters and 5 UVC lamps, the overall efficiency of formaldehyde removal of 52.37% at 21 °C, and 56.8% at 26 °C. By all experimental data can be found that the temperature for the photocatalytic performance is not obvious in the range of this study.

Chien-Chih Chen; Ching-Song Jwo; Tun-Ping Teng

2011-01-01T23:59:59.000Z

162

Chemical Methods for Removing Radon and Radon Daughters from Air  

Science Journals Connector (OSTI)

...been used previously as air in uranium mines with fiber filters...Radiation Standards for Uranium Mining," i KolthoffrPtJionAnaly...metal atoms is synthesized depleted by reaction with water vapor...12). Since the air in a uranium *The lattice constants for...

Lawrence Stein

1972-03-31T23:59:59.000Z

163

17th DOE nuclear air cleaning conference: proceedings. Volume 2  

SciTech Connect (OSTI)

Volume 2 contains papers presented at the following sessions: adsorption; noble gas treatment; personnel education and training; filtration and filter testing; measurement and instrumentation; air cleaning equipment response to accident related stress; containment venting air cleaning; and an open end session. Twenty-eight papers were indexed separately for inclusion in the Energy Data Base. Ten papers had been entered earlier.

First, M.W. (ed.)

1983-02-01T23:59:59.000Z

164

Bos > AIR  

E-Print Network [OSTI]

The advent of air travel has produced a building typology completely new to the 20th century. The outdated planning of regions for airports render most existing airports as isolated, autonomous instances in the urban ...

Lee, Kevin Young

2014-01-01T23:59:59.000Z

165

THE GENERAL MEETING OF THE AMERICAN PHILOSOPHICAL SOCIETY  

Science Journals Connector (OSTI)

...Service,' ' American Weather,' ' Climatol-ogy of...in the floor, into the heater boxes where the air is...the radiators. From the heater boxes the air passes out...applies during extreme cold weather, or when there are only...

1904-05-06T23:59:59.000Z

166

Atmospheric CO2 From Flask Air Samples at 10 Sites in the SIO Air Sampling  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Flask Air Samples, SIO Network Flask Air Samples, SIO Network Atmospheric CO2 From Flask Air Samples at 10 Sites in the SIO Air Sampling Network Scripps Institution of Oceanography Monitoring Sites Scripps Institution of Oceanography Monitoring Sites Mauna Loa, Hawaii Mauna Loa weekly average CO2 concentrations derived from continuous air samples Barrow, Alaska American Samoa South Pole Daily average CO2 concentrations derived from continuous air samples Alert, NWT, Canada Cape Kumukahi Christmas Island Baring Head Kermadec Island La Jolla Pier La Jolla Pier weekly average CO2 concentrations derived from continuous air samples PDF Documentation available as Atmospheric Carbon Dioxide Concentrations at 10 Locations Spanning Latitudes 82°N to 90°S, (NDP-001a) For information on calibration and some additional literature, go to

167

Blowers for Air Assisted Diesel Particulate Filter Regeneration  

Broader source: Energy.gov [DOE]

Prototypes of a new series of high-pressure, brushless DC motor-drive blowers have completed field testing, and DFM and manufacturing cost studies are well advanced.

168

Are Ventilation Filters Degrading Indoor Air Quality in California Classrooms?  

E-Print Network [OSTI]

Environ.   15,  List of Acronyms Energy  Commission: California Energy Commission  CREL: Chronic reference by the California Energy Commission Public Interest Energy

Fisk, Michael G. Apte and William J.

2009-01-01T23:59:59.000Z

169

Operating Experience Level 3, Laboratory Tests Indicate Conditions that Could Potentially Impact Certain Type of HEPA Filter Performance  

Broader source: Energy.gov [DOE]

OE-3: 2013-02 This Operating Experience Summary provides new information on a potential performance issue associated with certain axial flow high efficiency particulate air (HEPA) filters that do not contain separators in the folded media (separatorless).

170

Modeling service life of pleated filters exposed to poly-dispersed aerosols A.M. Saleh a  

E-Print Network [OSTI]

. Fotovati a , H. Vahedi Tafreshi a, , B. Pourdeyhimi b a Department of Mechanical and Nuclear Engineering to accommodate a flat-sheet filter is limited, such as in engines or HVAC systems. Understanding the air flow

Tafreshi, Hooman Vahedi

171

Secondary Pollutants from Ozone Reaction with Ventilation Filters and Degradation of Filter Media Additives  

E-Print Network [OSTI]

2007. Ozone removal by HVAC filters. Atmospheric Environmentozone reactions on HVAC filters cannot be ignored as aof pollutants from HVAC filters may be degradation of

Destaillats, Hugo

2012-01-01T23:59:59.000Z

172

Air Resources Laboratory Publications FY 2002  

E-Print Network [OSTI]

." Journal of Atmospheric Sciences 59:2605-2607 (2002). Angell, J.K. Relation of size and displacement. Preprints, 4th Conference on Atmospheric Chemistry: Urban, Regional and Global-Scale Impacts of Air Pollutants, January 13­17, Orlando, FL. American Meteorological Society, Boston, 97­102 (2002). Baldocchi, D

173

Note: Cryogenic coaxial microwave filters  

SciTech Connect (OSTI)

The careful filtering of microwave electromagnetic radiation is critical for controlling the electromagnetic environment for experiments in solid-state quantum information processing and quantum metrology at millikelvin temperatures. We describe the design and fabrication of a coaxial filter assembly and demonstrate that its performance is in excellent agreement with theoretical modelling. We further perform an indicative test of the operation of the filters by making current-voltage measurements of small, underdamped Josephson junctions at 15 mK.

Tancredi, G.; Meeson, P. J. [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom)] [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom); Schmidlin, S. [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom) [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom); National Physical Laboratory, Hampton Road, Teddington TW11 0LW (United Kingdom)

2014-02-15T23:59:59.000Z

174

Investigation of IAQ-Relevant Surface Chemistry and Emissions on HVAC Filter Materials  

SciTech Connect (OSTI)

Chemical reactions involving ozone of outdoor origin and indoor materials are known to be significant sources of formaldehyde and other irritant gas-phase oxidation products in the indoor environment. HVAC filters are exposed to particularly high ozone concentrations--close to outdoor levels. In this study, we investigated chemical processes taking place on the surface of filters that included fiberglass, polyester, cotton/polyester blend and synthetic (e.g., polyolefin) filter media. Ozone reactions were studied on unused filter media, and on filters that were deployed for 3 months in two different locations: at the Lawrence Berkeley National Laboratory and at the Port of Oakland. Specimens from each filter were exposed to ozone under controlled conditions in a laboratory flow tube at a constant flow of dry or humidified air (50percent relative humidity). Ozone was generated with a UV source upstream of the flow tube, and monitored using a photometric detector. Ozone breakthrough curves were recorded for each sample exposed to ~;;150 ppbv O3 for periods of ~;;1000 min, from which we estimated their uptake rate. Most experiments were performed at 1.3 L/min (corresponding to a face velocity of 0.013 m/s), except for a few tests performed at a higher airflow rate, to obtain a face velocity of 0.093 m/s, slightly closer to HVAC operation conditions. Formaldehyde and acetaldehyde, two oxidation byproducts, were collected downstream of the filter and quantified. Emissions of these volatile aldehydes were consistently higher under humidified air than under dry conditions, at which levels were near the limit of detection. Our results confirm that there are significant reactions of ozone as air containing ozone flows through HVAC filters, particularly when the filters are loaded with particles and the air is humidified. The amount of ozone reacted was not clearly related to the types of filter media, e.g., fiberglass versus synthetic. Specific fiberglass filters that were coated with an impaction oil showed significantly higher formaldehyde emissions than most other samples. Those emissions were magnified in the presence of particles (i.e., in used filters), and were observed even in the absence of ozone, which suggests that hydrolysis of filter binder or tackifier additives may be the reason for those high emissions. Mass balance calculations indicate that the emission rates of formaldehyde and acetaldehyde from the filters are generally not large enough to substantially increase indoor formaldehyde or acetaldehyde concentrations.

Destaillats, Hugo; Fisk, William J.

2010-02-01T23:59:59.000Z

175

Air Resources: Prevention and Control of Air Contamination and Air  

Broader source: Energy.gov (indexed) [DOE]

Air Resources: Prevention and Control of Air Contamination and Air Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) < Back Eligibility Agricultural Fuel Distributor Industrial Institutional Investor-Owned Utility Local Government Multi-Family Residential Municipal/Public Utility Nonprofit Rural Electric Cooperative Schools State/Provincial Govt Transportation Tribal Government Utility Program Info State New York Program Type Environmental Regulations Provider NY Department of Environmental Conservation These regulations establish emissions limits and permitting and operational

176

of the filter were measured using condensation particle counters (TSI Inc. model 3022A). Submicrometer particles entering the counters are  

E-Print Network [OSTI]

Standard for High Efficiency Air Filters (HEPA and ULPA), Beuth Verlag GmbH, Berlin, Germany 1995. [11] Tof the filter were measured using condensation particle counters (TSI Inc. model 3022A). Submicrometer particles entering the counters are grown into micrometer sized droplets by condensation

Gruner, George

177

A Nominal Filter for Web Search Snippets: Using the Web to Identify Members of Latin  

E-Print Network [OSTI]

A Nominal Filter for Web Search Snippets: Using the Web to Identify Members of Latin America. This paper presents efforts aimed at using Natural Language Engineering (NLE) techniques to solve of three Latin American countries: Uruguay, Argentina and Colombia. An NLE system is under construction

Turner, William

178

Sound beyond the speed of light: Measurement of negative group velocity in an acoustic loop filter  

E-Print Network [OSTI]

Sound beyond the speed of light: Measurement of negative group velocity in an acoustic loop filter of magnitude difference between the speeds of sound and light. © 2007 American Institute of Physics. DOI: 10,2 A central issue is whether the speed of light in vacuum c constituted an upper limit to the group velocity

Robertson, William

179

Specification for HEPA Filters Used By DOE Contractors  

Broader source: Energy.gov (indexed) [DOE]

DOE-STD-3020-2005 DOE-STD-3020-2005 December 2005 Supersedes DOE-STD-3020-97 January 1997 DOE TECHNICAL STANDARD Specification for HEPA Filters Used by DOE Contractors U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited FOREWARD This U.S. Department of Energy (DOE) standard supersedes DOE-STD-3020-97 and is approved for use by DOE and its contractors. This standard was developed primarily for application in DOE programs. It provides guidance to DOE contractors for procurement and required testing of High Efficiency Particulate Air (HEPA) filters used in DOE nuclear facilities. Required testing is performed by the filter manufacturer and

180

Specification for HEPA Filters Used By DOE Contractors  

Broader source: Energy.gov (indexed) [DOE]

DOE-STD-3020-2005 DOE-STD-3020-2005 December 2005 Supersedes DOE-STD-3020-97 January 1997 DOE TECHNICAL STANDARD Specification for HEPA Filters Used by DOE Contractors U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited FOREWARD This U.S. Department of Energy (DOE) standard supersedes DOE-STD-3020-97 and is approved for use by DOE and its contractors. This standard was developed primarily for application in DOE programs. It provides guidance to DOE contractors for procurement and required testing of High Efficiency Particulate Air (HEPA) filters used in DOE nuclear facilities. Required testing is performed by the filter manufacturer and

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Perceptual improvement of Wiener filtering employing a post-filter  

Science Journals Connector (OSTI)

A major drawback of many speech enhancement methods in speech applications is the generation of an annoying residual noise with musical character. Although the Wiener filter introduces less musical noise than spectral subtraction methods, such noise, ... Keywords: MMSE, Modified masking threshold, Musical critical band, Perceptual post-filter, Speech enhancement

Md. Jahangir Alam; Douglas O'Shaughnessy

2011-01-01T23:59:59.000Z

182

Inflammatory response of lung cells exposed to whole, filtered, and  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Inflammatory response of lung cells exposed to whole, filtered, and Inflammatory response of lung cells exposed to whole, filtered, and hydrocarbon denuded diesel exhaust Title Inflammatory response of lung cells exposed to whole, filtered, and hydrocarbon denuded diesel exhaust Publication Type Journal Article Year of Publication 2007 Authors Holder, Amara L., Donald Lucas, Regine Goth-Goldstein, and Catherine P. Koshland Journal Chemosphere Volume 70 Pagination 13-19 Date Published 09/2007 Keywords air-liquid interface, combustion particle, human bronchial epithelial cells, interleukin-8 Abstract In vitro studies with the organic extracts of diesel particles have suggested that hydrocarbons such as PAH may play a role in an inflammatory response, but these have been limited by the possible artifacts introduced in the particle collection and processing. In this study, we avoid these artifacts and use an activated carbon denuder to remove hydrocarbons from the exhaust stream to investigate their role in the inflammatory response. Human bronchial epithelial cells (16HBE140) were exposed at the air-cell interface to diluted and aged exhaust from a diesel generator operated at partial and no load conditions. When particles were removed with a filter before cell exposure, exhaust gases accounted for almost half of the response compared to the whole exhaust. Removal of gas phase and a portion of the particle phase hydrocarbons with the denuder decreased the interleukin-8 (IL-8) secretion to unexposed levels

183

Evaluation of an air drilling cuttings containment system  

SciTech Connect (OSTI)

Drilling at hazardous waste sites for environmental remediation or monitoring requires containment of all drilling fluids and cuttings to protect personnel and the environment. At many sites, air drilling techniques have advantages over other drilling methods, requiring effective filtering and containment of the return air/cuttings stream. A study of. current containment methods indicated improvements could be made in the filtering of radionuclides and volatile organic compounds, and in equipment like alarms, instrumentation or pressure safety features. Sandia National Laboratories, Dept. 61 11 Environmental Drilling Projects Group, initiated this work to address these concerns. A look at the industry showed that asbestos abatement equipment could be adapted for containment and filtration of air drilling returns. An industry manufacturer was selected to build a prototype machine. The machine was leased and put through a six-month testing and evaluation period at Sandia National Laboratories. Various materials were vacuumed and filtered with the machine during this time. In addition, it was used in an actual air drive drilling operation. Results of these tests indicate that the vacuum/filter unit will meet or exceed our drilling requirements. This vacuum/filter unit could be employed at a hazardous waste site or any site where drilling operations require cuttings and air containment.

Westmoreland, J.

1994-04-01T23:59:59.000Z

184

Solid colloidal optical wavelength filter  

DOE Patents [OSTI]

A solid colloidal optical wavelength filter includes a suspension of spheal particles dispersed in a coagulable medium such as a setting plastic. The filter is formed by suspending spherical particles in a coagulable medium; agitating the particles and coagulable medium to produce an emulsion of particles suspended in the coagulable medium; and allowing the coagulable medium and suspended emulsion of particles to cool.

Alvarez, Joseph L. (Boulder, CO)

1992-01-01T23:59:59.000Z

185

Smithsonian American Art Museum 1 Smithsonian American Art Museum  

E-Print Network [OSTI]

Smithsonian American Art Museum 1 Smithsonian American Art Museum INVENTORY OF AMERICAN PAINTINGS): ___________________________________ _____________________________________________________________________________ EXECUTION DATE (if approximate, precede with circa): _____________________________ MEDIA oil pastel for contributing information to the national Inventory of American Paintings. Address completed reports

Mathis, Wayne N.

186

Backpulse and filter feed velocity effects on Norton filter performance  

SciTech Connect (OSTI)

A series of tests have been conducted using the 2.2 ft{sup 2} Norton filter to solve the fouling problems observed with the ETF Norton system. The objective of these tests was to determine filter efficiency as a function of backpulse strength and feed velocity. Based on experimental results, it is recommend that the filters should be operated at the following conditions: (1) Backpulse Transmembrane Pressure/FeedTransmembrane Pressure (BP/FP) > 1.5, preferably 2 or 3. (2) Feed crossflow velocity = 6--8 f/s. It is expected that operation at these conditions should improve performance by 30--60%.

Siler, J.L.

1990-05-08T23:59:59.000Z

187

Safety evaluation for packaging (onsite) for the Pacific Northwest National Laboratory HEPA filter box  

SciTech Connect (OSTI)

This safety evaluation for packaging (SEP) evaluates and documents the safe onsite transport of eight high-efficiency particulate air (HEPA) filters in the Pacific Northwest National Laboratory HEPA Filter Box from the 300 Area of the Hanford Site to the Central Waste Complex and on to burial in the 200 West Area. Use of this SEP is authorized for 1 year from the date of release.

McCoy, J.C.

1998-07-15T23:59:59.000Z

188

Engaging Reluctant Americans into Energy Efficiency and Sustainability  

E-Print Network [OSTI]

-18 Gain a sustainable advantage Solar 36% 18% Natural Gas ESL-KT-13-12-58 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Gain a sustainable advantage Are at least somewhat concerned about indoor air quality 46... Dec. 16-18 Gain a sustainable advantage What they think they should do to improve the indoor air quality of a home isn’t entirely right 42.6% 34.2% 34.0% 30.8% 29.2% 20.5% Clean air ducts HEPA filters Improve home’s ventilation Open windows...

Shelton, S.

2013-01-01T23:59:59.000Z

189

Pleated Ceramic Fiber Diesel Particulate Filter | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Pleated Ceramic Fiber Diesel Particulate Filter Pleated Ceramic Fiber Diesel Particulate Filter 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

190

A Framework for Nonlinear Filtering in MATLAB.  

E-Print Network [OSTI]

?? The object of this thesis is to provide a MATLAB framework for nonlinear filtering in general, and particle filtering in particular. This is done… (more)

Rosén, Jakob

2005-01-01T23:59:59.000Z

191

Catalytic Filter for Diesel Exhaust Purification | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Filter for Diesel Exhaust Purification This project is developing a precious metal-free passive diesel particulate filter. deer09fokema.pdf More Documents & Publications...

192

Nuclear Filter Technology | Open Energy Information  

Open Energy Info (EERE)

Filter Technology Jump to: navigation, search Name: Nuclear Filter Technology Place: Golden, CO Information About Partnership with NREL Partnership with NREL Yes Partnership Type...

193

Evaluation of HVAC filters as a sampling mechanism for indoor microbial communities  

Science Journals Connector (OSTI)

HVAC filters are in place for extended periods of time and can serve as integrated air samplers. This paper presents a comparison of bacterial and fungal concentrations and communities in HVAC filter dust and other sampling locations in occupied residences and in the unoccupied \\{UTest\\} House. A DNA-based, culture-independent approach was utilized to characterize the microbial communities. Microbial concentrations and communities in HVAC filter dust samples were not statistically different from those in high surface dust samples in occupied homes. Despite the general similarity in the communities, Proteobacteria were present in greater proportion in HVAC filter dust samples than in surface dust samples suggesting the air origin of this phylum. Gram-positive bacteria were present in greater proportion in occupied residences than in an unoccupied test house, confirming the potential association of this group with occupants. HVAC filter microbial communities were not different from those present in a composited month-long indoor air sample providing preliminary evidence that filters could be a viable option for long-term investigation of airborne biological contaminants.

Federico Noris; Jeffrey A. Siegel; Kerry A. Kinney

2011-01-01T23:59:59.000Z

194

EML Surface Air Sampling Program, 1990--1993 data  

SciTech Connect (OSTI)

Measurements of the concentrations of specific atmospheric radionuclides in air filter samples collected for the Environmental Measurements Laboratory`s Surface Air Sampling Program (SASP) during 1990--1993, with the exception of April 1993, indicate that anthropogenic radionuclides, in both hemispheres, were at or below the lower limits of detection for the sampling and analytical techniques that were used to collect and measure them. The occasional detection of {sup 137}Cs in some air filter samples may have resulted from resuspension of previously deposited debris. Following the April 6, 1993 accident and release of radionuclides into the atmosphere at a reprocessing plant in the Tomsk-7 military nuclear complex located 16 km north of the Siberian city of Tomsk, Russia, weekly air filter samples from Barrow, Alaska; Thule, Greenland and Moosonee, Canada were selected for special analyses. The naturally occurring radioisotopes that the authors measure, {sup 7}Be and {sup 210}Pb, continue to be detected in most air filter samples. Variations in the annual mean concentrations of {sup 7}Be at many of the sites appear to result primarily from changes in the atmospheric production rate of this cosmogenic radionuclide. Short-term variations in the concentrations of {sup 7}Be and {sup 210}Pb continued to be observed at many sites at which weekly air filter samples were analyzed. The monthly gross gamma-ray activity and the monthly mean surface air concentrations of {sup 7}Be, {sup 95}Zr, {sup 137}Cs, {sup 144}Ce, and {sup 210}Pb measured at sampling sites in SASP during 1990--1993 are presented. The weekly mean surface air concentrations of {sup 7}Be, {sup 95}Zr, {sup 137}Cs, {sup 144}Ce, and {sup 210}Pb for samples collected during 1990--1993 are given for 17 sites.

Larsen, R.J.; Sanderson, C.G.; Kada, J.

1995-11-01T23:59:59.000Z

195

Fact Sheet: Isothermal Compressed Air Energy Storage (October 2012)  

Broader source: Energy.gov (indexed) [DOE]

SustainX SustainX American Recovery and Reinvestment Act (ARRA) Isothermal Compressed Air Energy Storage Demonstrating a modular, market-ready energy storage system that uses compressed air as a storage medium SustainX will demonstrate an isothermal compressed air energy storage (ICAES) system. Energy can be stored in compressed air, with minimal energy losses, and released when the air is later allowed to expand. Many traditional compressed air energy storage (CAES) projects store energy in underground geological formations such as salt caverns. However, in these systems, the air warms when it is compressed and cools when it is expanded. CAES systems generally use gas combustion turbines to reheat the cooled air before expansion. This process creates inefficiencies and emissions.

196

American Recovery and Reinvestment Act Information Services  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Recovery and Reinvestment Act Recovery and Reinvestment Act Information Services American Recovery and Reinvestment Act American Recovery and Reinvestment Act Information Services American Recovery and Reinvestment Act American Recovery and Reinvestment Act Information Services American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act American Recovery and Reinvestment Act

197

Ambit Energy American Airlines  

E-Print Network [OSTI]

ACT Dallas Amazon Ambit Energy American Airlines American Eagle ARGO Armor Wealth Management Army Energy Future Holdings Enterprise Rent-A-Car FactSet Research Systems Fidelity Investments First

O'Toole, Alice J.

198

Buy American Program Guidance  

Broader source: Energy.gov [DOE]

Guidance on the Buy American provision as applied to Energy Efficiency and Renewable Energy Projects funded by the American Recovery and Reinvestment Act of 2009. Office of EERE Guidance effective December 17, 2009.

199

Categorical Exclusion Determinations: American Recovery and Reinvestment  

Broader source: Energy.gov (indexed) [DOE]

9, 2010 9, 2010 CX-003355: Categorical Exclusion Determination Oklahoma State Energy Program American Recovery and Reinvestment Act- Phase 2 - Wind Turbine for Guthrie Waste Water Treatment Plant CX(s) Applied: B5.1 Date: 08/09/2010 Location(s): Guthrie, Oklahoma Office(s): Energy Efficiency and Renewable Energy, Golden Field Office August 9, 2010 CX-003354: Categorical Exclusion Determination Oklahoma State Energy Program American Recovery and Reinvestment Act - Heating, Ventilating, and Air Conditioning and Window Replacement in Administration Building CX(s) Applied: B5.1 Date: 08/09/2010 Location(s): Shawnee, Oklahoma Office(s): Energy Efficiency and Renewable Energy, Golden Field Office August 9, 2010 CX-003353: Categorical Exclusion Determination Oklahoma State Energy Program American Recovery and Reinvestment Act -

200

Proceedings of the 21st DOE/NRC Nuclear Air Cleaning Conference; Sessions 1--8  

SciTech Connect (OSTI)

Separate abstracts have been prepared for the papers presented at the meeting on nuclear facility air cleaning technology in the following specific areas of interest: air cleaning technologies for the management and disposal of radioactive wastes; Canadian waste management program; radiological health effects models for nuclear power plant accident consequence analysis; filter testing; US standard codes on nuclear air and gas treatment; European community nuclear codes and standards; chemical processing off-gas cleaning; incineration and vitrification; adsorbents; nuclear codes and standards; mathematical modeling techniques; filter technology; safety; containment system venting; and nuclear air cleaning programs around the world. (MB)

First, M.W. [ed.] [Harvard Univ., Boston, MA (United States). Harvard Air Cleaning Lab.

1991-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

CHAPTER 5: AIR QUALITY 1998 SITE ENVIRONMENTAL REPORT5-1  

E-Print Network [OSTI]

is routed through a roughing filter and a high efficiency particu- late air (HEPA) filter to remove any), the High Flux Beam Reactor, and the Brookhaven Linac Isotope Producer. Over the course of 1998, a total consistent with those of recent years. Conversion of three boilers at the Central Steam Facility to dual

202

Stand Alone Air Cleaners: Evaluation and Implications Matthew Ward, Jeffrey A. Siegel, Richard L. Corsi  

E-Print Network [OSTI]

through the HVAC system, and size-resolved particle removal efficiency in the HVAC filter were varied competition by particle deposition with indoor surfaces and removal to HVAC filters. INTRODUCTION Growing significance of size-resolved particle removal using portable air cleaners relative to filtration in HVAC

Siegel, Jeffrey

203

Water washable stainless steel HEPA filter  

DOE Patents [OSTI]

The invention is a high efficiency particulate (HEPA) filter apparatus and system, and method for assaying particulates. The HEPA filter provides for capture of 99.99% or greater of particulates from a gas stream, with collection of particulates on the surface of the filter media. The invention provides a filter system that can be cleaned and regenerated in situ.

Phillips, Terrance D. (617 Chestnut Ct., Aiken, SC 29803)

2001-01-01T23:59:59.000Z

204

Document Filtering With Inference Networks Jamie Callan  

E-Print Network [OSTI]

Document Filtering With Inference Networks Jamie Callan Computer Science Department University document filtering. The prob­ lems of document retrieval and document filtering are sim­ ilar of the infor­ mation available, are all different. This paper describes a new statistical document filtering

Callan, Jamie

205

Development of active porous medium filters based on plasma textiles  

Science Journals Connector (OSTI)

Inexpensive flexible washable and durable materials that serve as antimicrobial filters and self-decontaminating fabrics are needed to provide active protection to people in areas regularly exposed to various biohazards such as hospitals and bio research labs working with pathogens. Airlines and cruise lines need such material to combat the spread of infections. In households these materials can be used in HVAC filters to fight indoor pollution which is especially dangerous to people suffering from asthma. Efficient filtering materials are also required in areas contaminated by other types of hazardous dust particulates such as nuclear dust. The primary idea that guided the undertaken study is that a microplasma-generating structure can be embedded in a textile fabric to generate a plasma sheath (“plasma shield”) that kills bacterial agents coming in contact with the fabric. The research resulted in the development of a plasma textile that can be used for producing new types of self-decontaminating garments fabrics and filter materials capable of activating a plasma sheath that would filter capture and destroy any bacteriological agent deposited on its surface. This new material relies on the unique antimicrobial and catalytic properties of cold (room temperature) plasma that is benign to people and does not cause thermal damage to many polymer textiles such as Nomex and polypropylene. The uniqueness of cold plasma as a disinfecting agent lies in the inability of bacteria to develop resistance to plasma exposure as they can for antibiotics. Plasma textiles could thus be utilized for microbial destruction in active antimicrobial filters (for continuous decontamination and disinfection of large amounts of air) as well as in self-decontaminating surfaces and antibacterial barriers (for example for creating local antiseptic or sterile environments around wounds and burns).

Ivan A. Kuznetsov; Alexei V. Saveliev; Srinivasan Rasipuram; Andrey V. Kuznetsov; Alan Brown; Warren Jasper

2012-01-01T23:59:59.000Z

206

Spatial filters for high power lasers  

DOE Patents [OSTI]

A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first longitudinal slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second longitudinal slit filter positioned between the second pair of cylindrical lenses.

Erlandson, Alvin Charles; Bayramian, Andrew James

2014-12-02T23:59:59.000Z

207

North American Electric Reliability Corporation Interconnections...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

North American Electric Reliability Corporation Interconnections North American Electric Reliability Corporation Interconnections Map of the North American Electric Reliability...

208

American Reinvestment Recovery Act | Department of Energy  

Energy Savers [EERE]

American Reinvestment Recovery Act American Reinvestment Recovery Act Federal Energy Regulatory Commission Loan Program American Reinvestment Recovery Act More Documents &...

209

Active dc filter for HVDC systems  

SciTech Connect (OSTI)

This article is a case history of the installation of active dc filters for high-performance, low-cost harmonics filtering at the Lindome converter station in the Konti-Skan 2 HVDC transmission link between Denmark and Sweden. The topics of the article include harmonics, interference, and filters, Lindome active dc filter, active dc filter design, digital signal processor, control scheme, protection and fault monitoring, and future applications.

Zhang, W. (Royal Inst. of Tech., Stockholm (Sweden)); Asplund, G.

1994-01-01T23:59:59.000Z

210

Filter systems for IGCC applications  

SciTech Connect (OSTI)

The objectives of this program were to identify metallic filter medium to be utilized in the Integrated Gasification Combined Cycle process (IGCC). In IGCC processes utilizing high efficiency desulfurizing technology, the traditional corrosion attack, sulfidation, is minimized so that metallic filters are viable alternatives over ceramic filters. Tampa Electric Company`s Polk Power Station is being developed to demonstrate Integrated Gasification Combined Cycle technology. The Pall Gas Solid Separation (GSS) System is a self cleaning filtration system designed to remove virtually all particulate matter from gas streams. The heart of the system is the filter medium used to collect the particles on the filter surface. The medium`s filtration efficiency, uniformity, permeability, voids volume, and surface characteristics are all important to establishing a permeable permanent cake. In-house laboratory blowback tests, using representative full scale system particulate, were used to confirm the medium selection for this project. Test elements constructed from six alloys were supplied for exposure tests: PSS 310SC (modified 310S alloy); PSS 310SC heat treated; PSS 310SC-high Cr; PSS 310SC-high Cr heat treated; PSS Hastelloy X; and PSS Hastelloy X heat treated.

Bevan, S.; Gieger, R.; Sobel, N.; Johnson, D.

1995-11-01T23:59:59.000Z

211

Air Leakage of Furnaces and Air Handlers  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Air Leakage of Furnaces and Air Handlers Air Leakage of Furnaces and Air Handlers Title Air Leakage of Furnaces and Air Handlers Publication Type Journal Article LBNL Report Number LBNL-5553E Year of Publication 2010 Authors Walker, Iain S., Mile Lubliner, Darryl J. Dickerhoff, and William W. Delp Journal 2010 ACEEE Summer Study on Energy Efficiency in Buildings The Climate for efficiency is now Date Published 08/2010 Abstract In recent years, great strides have been made in reducing air leakage in residential and to a lesser extent small commercial forced air duct systems. Several authorities have introduced low leakage limits for thermal distribution systems; for example, the State of California Energy Code for Buildings gives credit for systems that leak less than 6% of the total air flow at 25 Pa.

212

Astronomy and Air Pollution  

Science Journals Connector (OSTI)

...for catalog, prices. ANALTECH...New Hartford, Connecticut 06057 Circle...American Soc. of Heating, Re-frigeration...circulators for heating and cooling...and Control of Oil Spills, American...Univ. of Connecticut, School of...

P. W. Hodge; Nels Laulainen; R. J. Charlson

1972-12-08T23:59:59.000Z

213

Metal-Air Batteries  

SciTech Connect (OSTI)

Metal-air batteries have much higher specific energies than most currently available primary and rechargeable batteries. Recent advances in electrode materials and electrolytes, as well as new designs on metal-air batteries, have attracted intensive effort in recent years, especially in the development of lithium-air batteries. The general principle in metal-air batteries will be reviewed in this chapter. The materials, preparation methods, and performances of metal-air batteries will be discussed. Two main metal-air batteries, Zn-air and Li-air batteries will be discussed in detail. Other type of metal-air batteries will also be described.

Zhang, Jiguang; Bruce, Peter G.; Zhang, Gregory

2011-08-01T23:59:59.000Z

214

Laboratory Evaluation of Fan-filter Units' Aerodynamic and Energy Performance  

E-Print Network [OSTI]

Laboratory Evaluation of Fan-filter Units' Aerodynamic and Energy Performance Tengfang Xu, Lawrence The paper discusses the benefits of having a consistent testing method to characterize aerodynamic applications. Optimizing aerodynamic performance in air recirculation systems appears to be one of useful

215

Electric filter with movable belt electrode  

DOE Patents [OSTI]

A method and apparatus for removing airborne contaminants entrained in a gas or airstream includes an electric filter characterized by a movable endless belt electrode, a grounded electrode, and a filter medium sandwiched there between. Inclusion of the movable, endless belt electrode provides the driving force for advancing the filter medium through the filter, and reduces frictional drag on the filter medium, thereby permitting a wide choice of filter medium materials. Additionally, the belt electrode includes a plurality of pleats in order to provide maximum surface area on which to collect airborne contaminants. 4 figs.

Bergman, W.

1983-09-20T23:59:59.000Z

216

A rigid porous filter and filtration method  

SciTech Connect (OSTI)

The present invention involves a porous rigid filter comprising a plurality of concentric filtration elements having internal flow passages and forming external flow passages there between. The present invention also involves a pressure vessel containing the filter for the removal of particulate from high pressure particulate containing gases, and further involves a method for using the filter to remove such particulate. The present filter has the advantage of requiring fewer filter elements due to the high surface area- to-volume ratio provided by the filter, requires a reduced pressure vessel size, and exhibits enhanced mechanical design properties, improved cleaning properties, configuration options, modularity and ease of fabrication.

Chiang, Ta-Kuan; Straub, Douglas, Straub L.; Dennis, Richard A.

1998-12-01T23:59:59.000Z

217

Air-flow regulation system for a coal gasifier  

DOE Patents [OSTI]

An improved air-flow regulator for a fixed-bed coal gasifier is provided which allows close air-flow regulation from a compressor source even though the pressure variations are too rapid for a single primary control loop to respond. The improved system includes a primary controller to control a valve in the main (large) air supply line to regulate large slow changes in flow. A secondary controller is used to control a smaller, faster acting valve in a secondary (small) air supply line parallel to the main line valve to regulate rapid cyclic deviations in air flow. A low-pass filter with a time constant of from 20 to 50 seconds couples the output of the secondary controller to the input of the primary controller so that the primary controller only responds to slow changes in the air-flow rate, the faster, cyclic deviations in flow rate sensed and corrected by the secondary controller loop do not reach the primary controller due to the high frequency rejection provided by the filter. This control arrangement provides at least a factor of 5 improvement in air-flow regulation for a coal gasifier in which air is supplied by a reciprocating compressor through a surge tank.

Fasching, George E. (Morgantown, WV)

1984-01-01T23:59:59.000Z

218

Air Pollution Control  

Science Journals Connector (OSTI)

Petroleum and chemical processes are responsible for many emissions both into the air. Most relevant emissions into the air are nitrous oxides (NOx), sulfur oxides ... compounds (VOC).The major cause of all air pollution

Alireza Bahadori

2014-01-01T23:59:59.000Z

219

Hickam Air Force Base  

Broader source: Energy.gov [DOE]

Hickam Air Force Base spans 2,850 acres in Honolulu, Hawaii. The military base is home to the 15th Airlift Wing, the Hawaii Air National Guard, and the Pacific Air Forces headquarters.

220

OLYMPIC AIR QUALITY QUESTIONABLE  

Science Journals Connector (OSTI)

OLYMPIC AIR QUALITY QUESTIONABLE ... Athletes GOING FOR GOLD worry about Beijing’s air ... Atmospheric chemists say the air quality during the Beijing Games literally rests on which direction the winds blow. ...

RACHEL PETKEWICH

2008-07-28T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Air Quality and Pollution  

Science Journals Connector (OSTI)

Air quality refers to the physical, chemical, and biological characteristics of air, both in outside space and in enclosed ... other non?industrial working places, and residencies. Air pollution is the abnormal ...

Zoran Marmut

2008-01-01T23:59:59.000Z

222

High Energy Efficiency Air Conditioning  

SciTech Connect (OSTI)

This project determined the performance of a new high efficiency refrigerant, Ikon B, in a residential air conditioner designed to use R-22. The refrigerant R-22, used in residential and small commercial air conditioners, is being phased out of production in developed countries beginning this year because of concerns regarding its ozone depletion potential. Although a replacement refrigerant, R-410A, is available, it operates at much higher pressure than R-22 and requires new equipment. R-22 air conditioners will continue to be in use for many years to come. Air conditioning is a large part of expensive summer peak power use in many parts of the U.S. Previous testing and computer simulations of Ikon B indicated that it would have 20 - 25% higher coefficient of performance (COP, the amount of cooling obtained per energy used) than R-22 in an air-cooled air conditioner. In this project, a typical new R-22 residential air conditioner was obtained, installed in a large environmental chamber, instrumented, and run both with its original charge of R-22 and then with Ikon B. In the environmental chamber, controlled temperature and humidity could be maintained to obtain repeatable and comparable energy use results. Tests with Ikon B included runs with and without a power controller, and an extended run for several months with subsequent analyses to check compatibility of Ikon B with the air conditioner materials and lubricant. Baseline energy use of the air conditioner with its original R-22 charge was measured at 90 deg F and 100 deg F. After changeover to Ikon B and a larger expansion orifice, energy use was measured at 90 deg F and 100 deg F. Ikon B proved to have about 19% higher COP at 90 deg F and about 26% higher COP at 100 deg F versus R-22. Ikon B had about 20% lower cooling capacity at 90 deg F and about 17% lower cooling capacity at 100 deg F versus R-22 in this system. All results over multiple runs were within 1% relative standard deviation (RSD). All of these values agree well with previous results and computer simulations of Ikon B performance versus R-22. The lower cooling capacity of Ikon B is not a concern unless a particular air conditioner is near its maximum cooling capacity in application. Typically, oversized A/C systems are installed by contractors to cover contingencies. In the extended run with Ikon B, which lasted about 4.5 months at 100 deg F ambient temperature and 68% compressor on time, the air conditioner performed well with no significant loss of energy efficiency. Post-run analysis of the refrigerant, compressor lubricant oil, compressor, compressor outlet tubing, and the filter/dryer showed minor effects but nothing that was considered significant. The project was very successful. All objectives were achieved, and the performance of Ikon B indicates that it can easily be retrofitted into R-22 air conditioners to give 15 - 20% energy savings and a 1 - 3 year payback of retrofit costs depending on location and use. Ikon B has the potential to be a successful commercial product.

Edward McCullough; Patrick Dhooge; Jonathan Nimitz

2003-12-31T23:59:59.000Z

223

Cordierite silicon nitride filters. Final report  

SciTech Connect (OSTI)

The objective of this project was to develop a silicon nitride based crossflow filter. This report summarizes the findings and results of the project. The project was phased with Phase I consisting of filter material development and crossflow filter design. Phase II involved filter manufacturing, filter testing under simulated conditions and reporting the results. In Phase I, Cordierite Silicon Nitride (CSN) was developed and tested for permeability and strength. Target values for each of these parameters were established early in the program. The values were met by the material development effort in Phase I. The crossflow filter design effort proceeded by developing a macroscopic design based on required surface area and estimated stresses. Then the thermal and pressure stresses were estimated using finite element analysis. In Phase II of this program, the filter manufacturing technique was developed, and the manufactured filters were tested. The technique developed involved press-bonding extruded tiles to form a filter, producing a monolithic filter after sintering. Filters manufactured using this technique were tested at Acurex and at the Westinghouse Science and Technology Center. The filters did not delaminate during testing and operated and high collection efficiency and good cleanability. Further development in areas of sintering and filter design is recommended.

Sawyer, J.; Buchan, B. [Acurex Environmental Corp., Mountain View, CA (United States); Duiven, R.; Berger, M. [Aerotherm Corp., Mountain View, CA (United States); Cleveland, J.; Ferri, J. [GTE Products Corp., Towanda, PA (United States)

1992-02-01T23:59:59.000Z

224

Improving Filtering for Computer Graphics  

E-Print Network [OSTI]

When drawing images onto a computer screen, the information in the scene is typically more detailed than can be displayed. Most objects, however, will not be close to the camera, so details have to be filtered out, or anti-aliased, when the objects...

Manson, Josiah

2014-04-30T23:59:59.000Z

225

System Effects of High Efficiency Filters in Homes  

E-Print Network [OSTI]

FIELD TESTING OF FILTER IMPACTS ON HVAC SYSTEM PERFORMANCEof Filters in Residential and Light-Commercial HVAC systems.HVAC system performance changes with different MERV filters

Walker, Iain S.

2014-01-01T23:59:59.000Z

226

ADVANCED HOT GAS FILTER DEVELOPMENT  

SciTech Connect (OSTI)

This report describes the fabrication and testing of continuous fiber ceramic composite (CFCC) based hot gas filters. The fabrication approach utilized a modified filament winding method that combined both continuous and chopped fibers into a novel microstructure. The work was divided into five primary tasks. In the first task, a preliminary set of compositions was fabricated in the form of open end tubes and characterized. The results of this task were used to identify the most promising compositions for sub-scale filter element fabrication and testing. In addition to laboratory measurements of permeability and strength, exposure testing in a coal combustion environment was performed to asses the thermo-chemical stability of the CFCC materials. Four candidate compositions were fabricated into sub-scale filter elements with integral flange and a closed end. Following the 250 hour exposure test in a circulating fluid bed combustor, the retained strength ranged from 70 t 145 percent of the as-fabricated strength. The post-test samples exhibited non-catastrophic failure behavior in contrast to the brittle failure exhibited by monolithic materials. Filter fabrication development continued in a filter improvement and cost reduction task that resulted in an improved fiber architecture, the production of a net shape flange, and an improved low cost bond. These modifications were incorporated into the process and used to fabricate 50 full-sized filter elements for testing in demonstration facilities in Karhula, Finland and at the Power Systems Development Facility (PSDF) in Wilsonville, AL. After 581 hours of testing in the Karhula facility, the elements retained approximately 87 percent of their as-fabricated strength. In addition, mechanical response testing at Virginia Tech provided a further demonstration of the high level of strain tolerance of the vacuum wound filter elements. Additional testing in the M. W. Kellogg unit at the PSDF has accumulated over 1800 hours of coal firing at temperatures of 760 °C including a severe thermal upset that resulted in the failure of several monolithic oxide elements. No failures of any kind have been reported for the MTI CFCC elements in either of these test campaigns. Additional testing is planned at the M. W. Kellogg unit and Foster Wheeler unit at the PSDF over the next year in order to qualify for consideration for the Lakeland PCFB. Process scale-up issues have been identified and manufacturing plans are being evaluated to meet the needs of future demand.

RICHARD A. WAGNER

1998-09-04T23:59:59.000Z

227

Primary zone air proportioner  

DOE Patents [OSTI]

An air proportioner is provided for a liquid hydrocarbon fueled gas turbine of the type which is convertible to oil gas fuel and to coal gas fuel. The turbine includes a shell for enclosing the turbine, an air duct for venting air in said shell to a gasifier, and a fuel injector for injecting gasified fuel into the turbine. The air proportioner comprises a second air duct for venting air from the air duct for mixing with fuel from the gasifier. The air can be directly injected into the gas combustion basket along with the fuel from the injector or premixed with fuel from the gasifier prior to injection by the fuel injector.

Cleary, Edward N. G. (San Diego, CA)

1982-10-12T23:59:59.000Z

228

MidAmerican Energy (Electric) - Residential Energy Efficiency Rebate  

Broader source: Energy.gov (indexed) [DOE]

MidAmerican Energy (Electric) - Residential Energy Efficiency MidAmerican Energy (Electric) - Residential Energy Efficiency Rebate Programs MidAmerican Energy (Electric) - Residential Energy Efficiency Rebate Programs < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Appliances & Electronics Heat Pumps Commercial Lighting Lighting Water Heating Other Program Info Expiration Date 12/31/2013 State Iowa Program Type Utility Rebate Program Rebate Amount Room Air Conditioners: $25 Central Air Conditioners: $100-$200 Heat Pumps: $100-$400 Ground-source Heat Pumps: $1000-$2000 Desuperheaters: $100 Heat Pump Water Heaters: $100 Water Heaters: $50 Washer/Dryer: $50/unit Hard-Wired Light Fixture: $20/fixture Refrigerator: $50 Freezer: $25 Dishwasher: $20 Appliance Recycling: $25-$50/unit

229

American Chemical Society Award Winners, Chicago, III.  

Science Journals Connector (OSTI)

American Chemical Society Award Winners, Chicago, III. ... Copyright © 1970 American Chemical Society ...

1970-10-01T23:59:59.000Z

230

Automatic tuning of continuous-time filters  

E-Print Network [OSTI]

Integrated high-Q continuous-time filters require adaptive tuning circuits that will correct the filter parameters such as center frequency and quality factor (Q). Three different automatic tuning techniques are introduced. In all of the proposed...

Sumesaglam, Taner

2004-11-15T23:59:59.000Z

231

Spatial Frequency Filtering Using Nondelineated Thin Films  

Science Journals Connector (OSTI)

We present a new approach for achieving spatial frequency filtering in the analog domain. Our device, the Thin Film Spatial Filter, is a hybrid structure which combines the strengths of analog VLSI technology with the simplicity of a continuous sheet ...

J. Mcelvain; J. Langan; A. J. Heeger

1997-10-01T23:59:59.000Z

232

Waveguide Filter Tutorial Julius O. Smith III  

E-Print Network [OSTI]

Waveguide Filter Tutorial Julius O. Smith III Center for Computer Research in Music and Acoustics was adapted from the conference paper "Waveguide Filter Tutorial," by J.O. Smith, Proceedings

Smith III, Julius Orion

233

An energy recovery filter for HVDC systems  

SciTech Connect (OSTI)

The paper investigates the use of a novel filter arrangement for eliminating harmonic instability. The CIGRE benchmark model is selected as the base system. Presented in the paper is an example of harmonic instability which is first eliminated using a conventional low Q filter. Subsequently an energy recovery filter (ER-filter) replaces the conventional low Q filter. It is shown that the ER-filter provides similar performance with a fraction of the power loss when compared with a low Q filter. The dynamic performance of the ER-filter is also demonstrated via the simulations of system start-up and faults. The tool used for this investigation is an electromagnetic transient simulation program.

Jiang, X.; Gole, A.M. (Univ. of Manitoba, Winnipeg (Canada). Dept. of Electrical and Computer Engineering)

1994-01-01T23:59:59.000Z

234

SEPTEMBER 2001 2205S C H U L T Z 2001 American Meteorological Society  

E-Print Network [OSTI]

to be composed of three different airstreams: air-parcel trajectories belonging to the ascending warm conveyor belt, air-parcel trajectories belonging to the cyclonic path of the cold conveyor belt that originateSEPTEMBER 2001 2205S C H U L T Z 2001 American Meteorological Society Reexamining the Cold Conveyor

Schultz, David

235

Development of a small air?cooled ‘‘midnight sun’’ thermophotovoltaic electric generator  

Science Journals Connector (OSTI)

A natural gas fired thermophotovoltaic generator using infrared?sensitive GaSb cells and a silicon carbide emitter is described. The emitter is designed to operate at 1400?°C. Twelve GaSb receivers surround the emitter. Each receiver contains a string of series connected cells. Special infrared filters are bonded to each cell. These filters transmit short wavelength useful IR to the cells while reflecting longer wavelength IR back to the emitter. Combustion air is supplied to the burner through a counterflow heat exchanger where the air is preheated by the exhaust from the burner. The unit is air cooled and designed to produce approximately 100 Watts of electric power.

Lewis M. Fraas; Huang Han Xiang; She Hui; Luke Ferguson; John Samaras; Russ Ballantyne; Michael Seal; Ed West

1996-01-01T23:59:59.000Z

236

Demonstrating Online Monitoring of Air Pollutant Photodegradation in a 3D Printed Gas-Phase Photocatalysis Reactor  

Science Journals Connector (OSTI)

We present a demonstration of online monitoring of gas-phase photocatalytic reactions. A cotton cloth impregnated with commercial titanium dioxide nanoparticles is used as a photocatalytic filter to clean air contaminated with a model pollutant. A fan ...

Bozhidar I. Stefanov; Delphine Lebrun; Andreas Mattsson; Claes G. Granqvist; Lars Österlund

2014-11-21T23:59:59.000Z

237

Proceedings of Healthy Buildings 2009 Paper 474 Impacts of HVAC Filtration on Air-Conditioner Energy Consumption in  

E-Print Network [OSTI]

Proceedings of Healthy Buildings 2009 Paper 474 Impacts of HVAC Filtration on Air efficiency filters (Points A, B, and C, respectively). #12;Proceedings of Healthy Buildings 2009 Paper 474

Siegel, Jeffrey

238

Breakthrough Berkeley Mist Sealant Technology: Potential to Save Americans  

Broader source: Energy.gov (indexed) [DOE]

Breakthrough Berkeley Mist Sealant Technology: Potential to Save Breakthrough Berkeley Mist Sealant Technology: Potential to Save Americans $5B Per Year Breakthrough Berkeley Mist Sealant Technology: Potential to Save Americans $5B Per Year November 7, 2011 - 4:33pm Addthis A diagram of the Aeroseal sealant technology. | Image courtesy of Aeroseal LLC A diagram of the Aeroseal sealant technology. | Image courtesy of Aeroseal LLC Liisa O'Neill Liisa O'Neill Former New Media Specialist, Office of Public Affairs What does this mean for me? Air duct system leaks cost Americans $5 billion every year. A simple mist now on the market -- developed by Berkeley Lab -- can seal thousands of leaks in 4 to 8 hours, saving a home owner on average $600 to $850 per year. Who knew leaks could be costing Americans $5 billion every year? And that's

239

ELECTROSTATICALLY ENHANCED BARRIER FILTER COLLECTION  

SciTech Connect (OSTI)

This work was performed through the University of North Dakota (UND) Chemical Engineering Department with assistance from UND's Energy & Environmental Research Center. This research was undertaken in response to the U.S. Department of Energy Federal Technology Center Program Solicitation No. DE-PS26-99FT40479, Support of Advanced Coal Research at U.S. Universities and Colleges. Specifically, this research was in support of the UCR Core Program and addressees Topic 1, Improved Hot-Gas Contaminant and Particulate Removal Techniques, introducing an advanced design for particulate removal. Integrated gasification combined cycle (IGCC) offers the potential for very high efficiency and clean electric generation. In IGCC, the product gas from the gasifier needs to be cleaned of particulate matter to avoid erosion and high-temperature corrosion difficulties arising with the turbine blades. Current methods involve cooling the gases to {approx}100 C to condense alkalis and remove sulfur and particulates using conventional scrubber technology. This ''cool'' gas is then directed to a turbine for electric generation. While IGCC has the potential to reach efficiencies of over 50%, the current need to cool the product gas for cleaning prior to firing it in a turbine is keeping IGCC from reaching its full potential. The objective of the current project was to develop a highly reliable particulate collector system that can meet the most stringent turbine requirements and emission standards, can operate at temperatures above 1500 F, is applicable for use with all U.S. coals, is compatible with various sorbent injection schemes for sulfur and alkali control, can be integrated into a variety of configurations for both pressurized gasification and combustion, increases allowable face velocity to reduce filter system capital cost, and is cost-competitive with existing technologies. The collector being developed is a new concept in particulate control called electrostatically enhanced barrier filter collection (EBFC). This concept combines electrostatic precipitation (ESP) with candle filters in a single unit. Similar technology has been recently proven on a commercial scale for atmospheric applications, but needed to be tested at high temperatures and pressures. The synergy obtained by combining the two control technologies into a single system should actually reduce filter system capital and operating costs and make the system more reliable. More specifically, the ESP is expected to significantly reduce candle filter load and also to limit ash reintrainment, allowing for full recovery of baseline pressure drop during backpulsing of the filters.

John Erjavec; Michael D. Mann; Ryan Z. Knutson; Michael L. Swanson; Michael E. Collings

2003-06-01T23:59:59.000Z

240

Air Pollution Spring 2010  

E-Print Network [OSTI]

and control. 6. Examine regional and global air pollution issues. Prerequisite: CHEM 113 and (MATH 261 or MATHATS 555 Air Pollution Spring 2010 T Th 11:00 ­ 12:15, NESB 101 Instructor: Prof. Sonia Kreidenweis an understanding of types and sources of air pollution. 2. Examine concentrations of air pollutants

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Activated charcoal filters: Water treatment, pollution control, and industrial applications. (Latest citations from the Patent Bibliographic database with exemplary claims. ) Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning activated charcoal filters and their applications in water treatment, pollution control, and industrial processes. Filtering methods and equipment for air and water purification, industrial distillation and extraction, industrial leaching, and filtration of toxic materials and contaminants are described. Applications include drinking water purification, filtering beverages, production of polymer materials, solvent and metal recovery, waste conversion, automotive fuel and exhaust systems, swimming pool filtration, tobacco smoke filters, kitchen ventilators, medical filtration treatment, and odor absorbing materials. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1993-08-01T23:59:59.000Z

242

DOE-HDBK-1169-2003; DOE Handbook Nuclear Air Cleaning Handbook  

Broader source: Energy.gov (indexed) [DOE]

8-1 8-1 CHAPTER 8 TESTING 8.1 Introduction The rationale behind high-efficiency particulate air (HEPA) filter specifications was developed by Humphrey Gilbert, a Manhattan Project safety engineer who coined the term, "HEPA filter." The heart of the filter is the media (paper), originally the same filter paper used in World War II (WWII)-era military gas mask canisters. As a result, the HEPA filter inherited many of the same specifications used for gas mask military standards, most of which were developed during WWII and have remained largely intact to the present. For example, HEPA filters are tested for efficiency using aerosols with a 0.3-micrometer (µm) particle size because academics in the 1940s calculated that a particle of that size would be the most difficult to capture or

243

Ceramic hot-gas filter  

DOE Patents [OSTI]

A ceramic hot-gas candle filter having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during backpulse cleaning and is resistant to chemical degradation at high temperatures.

Connolly, Elizabeth Sokolinski (Wilmington, DE); Forsythe, George Daniel (Landenberg, PA); Domanski, Daniel Matthew (New Castle, DE); Chambers, Jeffrey Allen (Hockessin, DE); Rajendran, Govindasamy Paramasivam (Boothwyn, PA)

1999-01-01T23:59:59.000Z

244

Ceramic hot-gas filter  

DOE Patents [OSTI]

A ceramic hot-gas candle filter is described having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during back pulse cleaning and is resistant to chemical degradation at high temperatures.

Connolly, E.S.; Forsythe, G.D.; Domanski, D.M.; Chambers, J.A.; Rajendran, G.P.

1999-05-11T23:59:59.000Z

245

Ozone Removal by Filters Containing Activated Carbon: A Pilot Study  

E-Print Network [OSTI]

used as the only filter in a HVAC system, in this buildingair conditioning (HVAC) system. Filters containing 300 g of

Fisk, William

2012-01-01T23:59:59.000Z

246

A bench scale study of a one-step dissolution process for treating contaminated fiberglass filters  

SciTech Connect (OSTI)

High efficiency mist eliminators (HEME) and high efficiency particulate air filters (HEPA) made of High fiberglass will be used at the Savannah River Site (SRS) to remove particulate matter from offgases generated during melter feed preparation and vitrification of high-level radioactive waste (HLW) at the Defense Waste Processing Facility (DWPF). These filters will be contaminated with high-level, radioactive species and also with various high-boiling organic compounds. For this reason, a process was developed at the Savannah River Technology Center (SRTC) that will dissolve the spent filters so that the residues may be recycled to the HLW tanks for eventual vitrification. This process involves boiling the filters sequentially in NaOH, HN0{sub 3} and NaOH, while contained in a stainless steal wire mesh frame assembly. The objective of this communication is to present some of the original preliminary work done by Ritter on the simple one-step dissolution process. The results from six bench-scale experiments are reported for the dissolution of an organically-fouled sample of HEME obtained from the Integrated DWPF Melter (IDMS) offgas filtration system. The preliminary effects of filter packing density, air sparging versus rotating basket agitation, fouling, and adding Triton X-405 as a dispersing agent are reported.

Policke, T.A.; Ritter, J.A.

1995-12-01T23:59:59.000Z

247

Method and apparatus for reducing cold-phase emissions by utilizing oxygen-enriched intake air  

DOE Patents [OSTI]

An oxygen-enriched air intake control system for an internal combustion engine includes air directing apparatus to control the air flow into the intake of the engine. During normal operation of the engine, ambient air flowing from an air filter of the engine flows through the air directing apparatus into the intake of the engine. In order to decrease the amount of carbon monoxide (CO) and hydrocarbon (HC) emissions that tend to be produced by the engine during a short period of time after the engine is started, the air directing apparatus diverts for a short period of time following the start up of the engine at least a portion of the ambient air from the air filter through a secondary path. The secondary path includes a selectively permeable membrane through which the diverted portion of the ambient air flows. The selectively permeable membrane separates nitrogen and oxygen from the diverted air so that oxygen enriched air containing from about 23% to 25% oxygen by volume is supplied to the intake of the engine.

Poola, Ramesh B. (Woodridge, IL); Sekar, Ramanujam R. (Naperville, IL); Stork, Kevin C. (Chicago, IL)

1997-01-01T23:59:59.000Z

248

Hybrid Plasma Reactor/Filter for Transportable Collective Protection Systems  

SciTech Connect (OSTI)

Pacific Northwest National Laboratory (PNNL) has performed an assessment of a Hybrid Plasma/Filter system as an alternative to conventional methods for collective protection. The key premise of the hybrid system is to couple a nonthermal plasma (NTP) reactor with reactive adsorption to provide a broader envelope of protection than can be provided through a single-solution approach. The first step uses highly reactive species (e.g. oxygen radicals, hydroxyl radicals, etc.) created in a nonthermal plasma (NTP) reactor to destroy the majority (~75% - 90%) of an incoming threat. Following the NTP reactor an O3 reactor/filter uses the O3 created in the NTP reactor to further destroy the remaining organic materials. This report summarizes the laboratory development of the Hybrid Plasma Reactor/Filter to protect against a ‘worst-case’ simulant, methyl bromide (CH3Br), and presents a preliminary engineering assessment of the technology to Joint Expeditionary Collective Protection performance specifications for chemical vapor air purification technologies.

Josephson, Gary B.; Tonkyn, Russell G.; Frye, J. G.; Riley, Brian J.; Rappe, Kenneth G.

2011-04-06T23:59:59.000Z

249

Energy Crossroads: Ventilation, Infiltration & Indoor Air Quality |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ventilation, Infiltration & Indoor Air Quality Ventilation, Infiltration & Indoor Air Quality Suggest a Listing Air Infiltration and Ventilation Centre (AIVC) The AIVC fulfills its objectives by providing a range of services and facilities which include: Information, Technical Analysis, Technical Interchange, and Coordination. American Conference of Governmental Industrial Hygienists (ACGIH) The ACGIH offers high quality technical publications and learning opportunities. Americlean Services Corp. (ASC) ASC is a certified SBA 8(a) engineering/consulting firm specializing in HVAC contamination detection, abatement, and monitoring. In addition to highly professional ductwork cleaning and HVAC cleaning services, ASC offers a wide range of other engineering/ consulting/ management services

250

Filter for isotopic alteration of mercury vapor  

DOE Patents [OSTI]

A filter for enriching the .sup.196 Hg content of mercury, including a reactor, a low pressure electric discharge lamp containing a fill of mercury and an inert gas. A filter is arranged concentrically around the lamp. The reactor is arranged around said filter, whereby radiation from said lamp passes through the filter and into said reactor. The lamp, the filter and the reactor are formed of quartz, and are transparent to ultraviolet light. The .sup.196 Hg concentration in the mercury fill is less than that which is present in naturally occurring mercury, that is less than about 0.146 atomic weight percent. Hydrogen is also included in the fill and serves as a quenching gas in the filter, the hydrogen also serving to prevent disposition of a dark coating on the interior of the filter.

Grossman, Mark W. (Belmont, MA); George, William A. (Gloucestor, MA)

1989-01-01T23:59:59.000Z

251

Filter for isotopic alteration of mercury vapor  

DOE Patents [OSTI]

A filter is described for enriching the [sup 196]Hg content of mercury, including a reactor, a low pressure electric discharge lamp containing a fill of mercury and an inert gas. A filter is arranged concentrically around the lamp. The reactor is arranged around said filter, whereby radiation from said lamp passes through the filter and into said reactor. The lamp, the filter and the reactor are formed of quartz, and are transparent to ultraviolet light. The [sup 196]Hg concentration in the mercury fill is less than that which is present in naturally occurring mercury, that is, less than about 0.146 atomic weight percent. Hydrogen is also included in the fill and serves as a quenching gas in the filter, the hydrogen also serving to prevent disposition of a dark coating on the interior of the filter. 9 figs.

Grossman, M.W.; George, W.A.

1989-06-13T23:59:59.000Z

252

Noise and vibration characteristics of cleanroom fan filter units  

Science Journals Connector (OSTI)

Fan filter units (FFU’s) are used increasingly by the microelectronics industry to provide recirculation air in cleanrooms. Such units usually consist of one or more direct?drive blowers located in a small discharge plenum and a HEPA or ULPA filter. There may be several hundred FFU’s in a large cleanroom. The noise and vibration generated by FFU’s differ greatly between manufacturers. Since it is difficult to apply external noise and vibration mitigation it is important to select an FFU model with appropriate noise and vibration levels so that a cleanroom served by these units will meet the prespecified noise and vibration criteria. Unfortunately FFU manufacturers usually do not provide enough information for predicting the FFU generated sound?pressure spectrum or vibration in a cleanroom. In this paper simple noise and vibration measurement methods will be described which can be used as a basis for specifying FFU performance without special testing facilities. Measured data will be presented for a number of units. Procedures will be demonstrated to predict the performance of a cleanroom which uses FFU’s as the primary source of recirculation air.

Mei Q. Wu; Colin G. Gordon

1998-01-01T23:59:59.000Z

253

North American Energy Ministers Meeting  

Broader source: Energy.gov [DOE]

Washington– The North American Energy Ministers met today, in response to the call of the North American Leaders, to advance an energy agenda that expands the continent’s leadership in energy, strengthens North American energy security, supports shared economic prosperity and environmental performance. This meeting builds upon a long, productive and successful history of trilateral North American collaboration on energy issues.

254

Effects of diesel particle filter retrofits and accelerated fleet turnover  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Effects of diesel particle filter retrofits and accelerated fleet turnover Effects of diesel particle filter retrofits and accelerated fleet turnover on drayage truck emissions at the port of Oakland Title Effects of diesel particle filter retrofits and accelerated fleet turnover on drayage truck emissions at the port of Oakland Publication Type Journal Article Year of Publication 2011 Authors Dallmann, Timothy R., Robert A. Harley, and Thomas W. Kirchstetter Journal Environmental Science & Technology Volume 45 Issue 24 Pagination 10773-10779 Abstract Heavy-duty diesel drayage trucks have a disproportionate impact on the air quality of communities surrounding major freight-handling facilities. In an attempt to mitigate this impact, the state of California has mandated new emission control requirements for drayage trucks accessing ports and rail yards in the state beginning in 2010. This control rule prompted an accelerated diesel particle filter (DPF) retrofit and truck replacement program at the Port of Oakland. The impact of this program was evaluated by measuring emission factor distributions for diesel trucks operating at the Port of Oakland prior to and following the implementation of the emission control rule. Emission factors for black carbon (BC) and oxides of nitrogen (NOx) were quantified in terms of grams of pollutant emitted per kilogram of fuel burned using a carbon balance method. Concentrations of these species along with carbon dioxide were measured in the exhaust plumes of individual diesel trucks as they drove by en route to the Port. A comparison of emissions measured before and after the implementation of the truck retrofit/replacement rule shows a 54 ± 11% reduction in the fleet-average BC emission factor, accompanied by a shift to a more highly skewed emission factor distribution. Although only particulate matter mass reductions were required in the first year of the program, a significant reduction in the fleet-average NOx emission factor (41 ± 5%) was observed, most likely due to the replacement of older trucks with new ones.

255

The American Association  

Science Journals Connector (OSTI)

... of the American Association for the Advancement of Science was held at St. Louis on December 26, 1903, to January 1. The address delivered by the president of the association, ...

1904-02-25T23:59:59.000Z

256

The great American garage  

E-Print Network [OSTI]

How does one explore the suburban home? Go in through the garage, of course. Sales, bands, suicides, and business startups: The suburban garage is the most culturally flexible space in the entire American domestic environment. ...

Miller, B. Alex (Brian Alex), 1977-

2004-01-01T23:59:59.000Z

257

American Samoa- Net Metering  

Broader source: Energy.gov [DOE]

The American Samoa Power Authority (ASPA), a government-owned electric utility, is the only power provider in this U.S. territory of almost 70,000 people. ASPA's "Interconnection and Net Energy...

258

Recirculation of In-Plant Air at General Motors  

E-Print Network [OSTI]

(fitted around the drum itself) is a coarse fiber, non-woven polyester and is designed for use in oil mist and smoke applications. This inner layer holds the outside media away from the drum keeping it from contacting the expanded metal; thus... for cleaning up the in-plant environment at GM is the rotary drum filter. This rotary drum filter is an air cleaning unit manufactured by two indus trial concerns. It consists of an expanded metal drum fitted with two layers of media. The inner layer...

McKibben, V. L.

1983-01-01T23:59:59.000Z

259

Afterschool Alliance American College Marketing, LLC  

E-Print Network [OSTI]

Afterschool Alliance American College Marketing, LLC American Express PAC Match American Heart Lehigh Valley Dental Society MEPAC National Collegiate Inventors & Innovators Alliance New York Life

Napier, Terrence

260

Development of a Rotary Micro-filter for Radioactive Waste Applications  

SciTech Connect (OSTI)

The processing rates of Savannah River Site (SRS) high-level waste decontamination processes are limited by the flow rate of the solid-liquid separation. The baseline process, using a 0.1 micron cross-flow filter, produces {approx}1.36 x 10{sup -5} m/s ({approx}0.02 gpm/ft{sup 2}) of filtrate under expected operating conditions. Savannah River National Laboratory (SRNL) demonstrated significantly higher filter flux for actual waste samples using a small-scale rotary filter. With funding from the U. S. Department of Energy Office of Cleanup Technology, SRNL personnel are evaluating and developing the rotary micro-filter for radioactive service at SRS. The authors improved the design for the disks and filter unit to make them suitable for high-level radioactive service. They procured two units using the new design, tested them with simulated SRS wastes, and evaluated the operation of the units. Work to date provides the following conclusions and program status. - The authors modified the design of the filter disks to remove epoxy and Ryton{sup R}. The new design includes welding both stainless steel and ceramic coated stainless steel filter media to a stainless steel support plate. The welded disks were tested in the full-scale unit. They showed good reliability and met filtrate quality requirements. - The authors modified the design of the unit, making installation and removal easier. The new design uses a modular, one-piece filter stack that is removed simply by disassembly of a flange on the upper (inlet) side of the filter housing. All seals and rotary unions are contained within the removable stack. - While it is extremely difficult to predict the life of the seal, the vendor representative indicates a minimum of one year in present service conditions is reasonable. Changing the seal face material from silicon-carbide to a graphite-impregnated silicon-carbide is expected to double the life of the seal. Replacement of the current seal with an air seal could increase the lifetime to 5 years and is undergoing testing in the current work. - The bottom bushing showed wear due to a misalignment during the manufacture of the filter tank. Replacing the graphite bushing with a more wear resistant material such as a carbide material will increase the lifetime of the bushing. This replacement requires a more wear resistant part or coating to prevent excessive wear of the shaft. The authors are currently conducting testing with the more wear resistant bushing. - The project team plans to use the rotary micro-filter as a filter in advance of an ion exchange process under development for potential deployment in SRS waste tank risers. (authors)

Poirier, M.R.; Herman, D.T.; Fink, S.D. [Savannah River National Laboratory, Aiken, SC (United States)

2008-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Integrated Technology Air Cleaners (ITAC): Design and Evaluation  

SciTech Connect (OSTI)

The primary objective of this project was to design, build, and test an air cleaner for residential use with the potential to substantially improve indoor air quality, or maintain indoor air quality unchanged, when outdoor air ventilation rates are reduced to save energy. Two air cleaners were designed and fabricated. The design targets for airflow rate, fan power, and projected cost were met. In short term laboratory studies, both units performed as expected; however, during field studies in homes, the formaldehyde removal performance of the air cleaners was much lower than expected. In subsequent laboratory studies, incomplete decomposition of some indoor air volatile organic compounds, with formaldehyde as a product of partial decomposition of volatile organic compounds, was confirmed as the explanation for the poor formaldehyde removal performance in the field studies. The amount of formaldehyde produced per unit of decomposition of other volatile organic compounds was substantially diminished by increasing the amount of catalyst on the filter and also by decreasing the air velocity. Together, these two measures reduced formaldehyde production, per unit destruction of other volatile organic compounds, by a factor of four, while increasing the removal efficiency of volatile organic compounds by a factor of 1.4. A company with a southern California office is conducting studies in conjunction with Lawrence Berkeley National Laboratory, with the goal of incorporating the ITAC catalytic air cleaning technology in their future commercial products.

Fisk, William J.; Cohn, Sebastian; Destaillats, Hugo; Henzel, Victor; Sidheswaran, Meera; Sullivan, Douglas P.

2013-09-13T23:59:59.000Z

262

Widget:RRSectionFilter | Open Energy Information  

Open Energy Info (EERE)

RRSectionFilter RRSectionFilter Jump to: navigation, search This widget creates a filter tool, which will allow the user to filter the content displayed on the screen by RR Section region. It has been designed for use explicitly with the Geothermal Regulatory Roadmap home page. It is not designed for any other use. Parameters No paramteres Dependancies The Geothermal Regulatory Roadmap Sections page. Usage This Widget assumes the existence of HTML elements created by the Geothermal Regulatory Roadmap Sections page, and is called by that page using the following code: {{#Widget:RRSectionFilter}} Example For an example of this widget in use, please visit the page referenced above. (GRR/Sections) Retrieved from "http://en.openei.org/w/index.php?title=Widget:RRSectionFilter&oldid=65912

263

Multi-Canister overpack internal HEPA filters  

SciTech Connect (OSTI)

The rationale for locating a filter assembly inside each Multi-Canister Overpack (MCO) rather than include the filter in the Cold Vacuum Drying (CVD) process piping system was to eliminate the potential for contamination to the operators, processing equipment, and the MCO. The internal HEPA filters provide essential protection to facility workers from alpha contamination, both external skin contamination and potential internal depositions. Filters installed in the CVD process piping cannot mitigate potential contamination when breaking the process piping connections. Experience with K-Basin material has shown that even an extremely small release can result in personnel contamination and costly schedule disruptions to perform equipment and facility decontamination. Incorporating the filter function internal to the MCO rather than external is consistent with ALARA requirements of 10 CFR 835. Based on the above, the SNF Project position is to retain the internal HEPA filters in the MCO design.

SMITH, K.E.

1998-11-03T23:59:59.000Z

264

Healthy Air Act (Maryland)  

Broader source: Energy.gov [DOE]

The Maryland Healthy Air Act was developed with the purpose of bringing Maryland into attainment with the National Ambient Air Quality Standards (NAAQS) for ozone and fine particulate matter by the...

265

Air and Water Pollution  

Science Journals Connector (OSTI)

Air Pollution.... Many pollutants enter our bodies through the air we breathe at 13,000 l/day ... to quantitatively understand the basic environmental physics of pollution. This chapter covers the foll...

David Hafemeister

2014-01-01T23:59:59.000Z

266

Aesculap, Inc. Air Products  

E-Print Network [OSTI]

Aesculap, Inc. Air Products Air Products Foundation Alaric Compliance Services, LLC Alvin H. Butz & Herger, Inc. Sodexo Campus Services Sodexo Inc. and Affiliates Stupp Bros., Inc. Sugarbush Products, Inc

Napier, Terrence

267

Minimize Compressed Air Leaks  

Broader source: Energy.gov [DOE]

This tip sheet outlines a strategy for compressed air leak detection and provides a formula for cost savings calculations.

268

Diesel particulate filter with zoned resistive heater  

DOE Patents [OSTI]

A diesel particulate filter assembly comprises a diesel particulate filter (DPF) and a heater assembly. The DPF filters a particulate from exhaust produced by an engine. The heater assembly has a first metallic layer that is applied to the DPF, a resistive layer that is applied to the first metallic layer, and a second metallic layer that is applied to the resistive layer. The second metallic layer is etched to form a plurality of zones.

Gonze, Eugene V [Pinckney, MI

2011-03-08T23:59:59.000Z

269

Zone heated diesel particulate filter electrical connection  

DOE Patents [OSTI]

An electrical connection system for a particulate filter is provided. The system includes: a particulate filter (PF) disposed within an outer shell wherein the PF is segmented into a plurality of heating zones; an outer mat disposed between the particulate filter and the outer shell; an electrical connector coupled to the outer shell of the PF; and a plurality of printed circuit connections that extend along the outer surface of the PF from the electrical connector to the plurality of heating zones.

Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI)

2010-03-30T23:59:59.000Z

270

DC side filters for multiterminal HVDC systems  

SciTech Connect (OSTI)

Multiterminal HVDC systems present challenges in the specification and design of suitable dc side filtering. This document examines the existing experience and addresses the particular technical problems posed by multiterminal systems. The filtering requirements of small taps are discussed, as is the potential use of active filters. Aspects of calculation and design are considered and recommendations made to guide the planners and designers of future multiterminal schemes.

Shore, N.L.; Adamson, K.; Bard, P. [and others] [and others

1996-10-01T23:59:59.000Z

271

Reduction of particulate matter and gaseous emission from marine diesel engines using a catalyzed particulate filter  

Science Journals Connector (OSTI)

Diesel engines are used widely as the power sources of coastal ships and international vessels primarily due to their high thermal efficiency, high fuel economy and durable performance. However, the gaseous and solid substances exhausted from diesel engines during the combustion process cause air pollution, in particular around harbor regions. In order to effectively reduce particulate matter and gaseous pollution emissions, a catalyzed particulate filter was equipped in the tail pipe of a marine diesel engine. The engine's performance and emission characteristics under various engine speeds and torques were measured using a computerized engine data control and acquisition system accompanied with an engine dynamometer. The effectiveness of installing a catalyzed particulate filter on the reduction of pollutant emissions was examined. The experimental results show that the exhaust gas temperature, carbon monoxide and smoke opacity were reduced significantly upon installation of the particulate filter. In particular, larger conversion of carbon monoxide to carbon dioxide — and thus larger CO2 and lower CO emissions — were observed for the marine diesel engine equipped with a catalyzed particulate filter and operated at higher engine speeds. This is presumably due to enhancement of the catalytic oxidation reaction that results from an exhaust gas with stronger stirring motion passing through the filter. The absorption of partial heating energy from the exhaust gas by the physical structure of the particulate filter resulted in a reduction in the exhaust gas temperature. The particulate matter could be burnt to a greater extent due to the effect of the catalyst coated on the surface of the particulate filter. Moreover, the fuel consumption rate was increased slightly while the excess oxygen emission was somewhat decreased with the particulate filter.

Cherng-Yuan Lin

2002-01-01T23:59:59.000Z

272

Air Products effective way  

E-Print Network [OSTI]

PE O A e s a b O T A O ENNST Overview Air Products effective way standard me Departm Shipping has recently y of shipping eans. Air Pro ontainer that es of this pro onduct mark eep accelera eep the cost tilize widely a earch and m m visited Air er needs wer model was cr m approache ms

Demirel, Melik C.

273

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers  

SciTech Connect (OSTI)

There is a concern that environmental-contamination caused corrosion may negatively affect Information Technology (IT) equipment reliability. Nineteen data centers in the United States and two in India were evaluated using Corrosion Classification Coupons (CCC) to assess environmental air quality as it may relate IT equipment reliability. The data centers were of two basic types: closed and outside-air cooled. A closed data center provides cool air to the IT equipment using air conditioning in which only a small percent age of the recirculation air is make-up air continuously supplied from outside to meet human health requirements. An outside-air cooled data center uses outside air directly as the primary source for IT equipment cooling. Corrosion measuring coupons containing copper and silver metal strips were placed in both closed and outside-air cooled data centers. The coupons were placed at each data center (closed and outside-air cooled types) with the location categorized into three groups: (1) Outside - coupons sheltered, located near or at the supply air inlet, but located before any filtering, (2) Supply - starting just after initial air filtering continuing inside the plenums and ducts feeding the data center rooms, and (3) Inside located inside the data center rooms near the IT equipment. Each coupon was exposed for thirty days and then sent to a laboratory for a corrosion rate measurement analysis. The goal of this research was to investigate whether gaseous contamination is a concern for U.S. data center operators as it relates to the reliability of IT equipment. More specifically, should there be an increased concern if outside air for IT equipment cooling is used To begin to answer this question limited exploratory measurements of corrosion rates in operating data centers in various locations were undertaken. This study sought to answer the following questions: (1) What is the precision of the measurements (2) What are the approximate statistical distributions of copper and silver corrosion rates in the sampled data centers(3) To what extent are copper and silver corrosion measurements related (4) What is the relationship of corrosion rate measurements between outside-air cooled data centers compared to closed data centers (5) How do corrosivity measurements relate to IT equipment failure rates The data from our limited sample size suggests that most United States data center operators should not be concerned with environmental gaseous contamination causing high IT equipment failure rates even when using outside-air cooling. The research team recommends additional basic research on how environmental conditions, specifically gaseous contamination, affect electronic equipment reliability.

Coles, Henry C.; Han, Taewon; Price, Phillip N.; Gadgil, Ashok J.; Tschudi, William F.

2011-07-17T23:59:59.000Z

274

Gout in African Americans  

Science Journals Connector (OSTI)

AbstractPurpose African Americans have a substantially higher prevalence of risk factors for gout than Caucasians. The aim of the present study was to compare the risk for incident gout among African Americans and Caucasians. Methods Incidence rates of physician-diagnosed gout among 11,559 Caucasian men and 931 African American men aged 35 to 57 years and at high cardiovascular risk, observed for 7 years as a part of the Multiple Risk Factor Intervention Trial, were analyzed. Cox regression models were used to account for potential confounding by age, body mass index, diuretic use, hypertension and diabetes status, aspirin and alcohol consumption, and kidney disease. Results At baseline, after accounting for risk factors, African Americans had a 14% lower prevalence of hyperuricemia than Caucasians. Incidence of gout increased with increasing prevalence of risk factors in both Caucasians and African Americans. Ethnic disparities in incidence rates were most apparent among those without other risk factors for gout. In separate Cox regression models, after accounting for risk factors, African American ethnicity was associated with a hazard ratio of 0.78 (95% confidence interval [CI], 0.66-0.93) for physician-diagnosed gout and 0.88 (95% CI, 0.85-0.90) for incident hyperuricemia. Significant interactions were observed; the association was the strongest (hazard ratio 0.47; 0.37-0.60). These associations were unaffected by addition of serum urate as a covariate or by using alternate case definitions for gout. Conclusions After accounting for the higher prevalence of risk factors, African American ethnicity is associated with a significantly lower risk for gout and hyperuricemia compared with Caucasian ethnicity.

Eswar Krishnan

2014-01-01T23:59:59.000Z

275

Electrically-Assisted Diesel Particulate Filter Regeneration...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Evaluation pm041lance2011p.pdf More Documents & Publications Electrically-Assisted Diesel Particulate Filter Regeneration Substrate Studies of an Electrically-Assisted Diesel...

276

CLEERS Activities: Diesel Soot Filter Characterization & NOx...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Control Fundamentals CLEERS Activities: Diesel Soot Filter Characterization & NOx Control Fundamentals 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit...

277

Magnetic Filtration Process, Magnetic Filtering Material, and...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

SummaryORNL researchers developed a new method for filtering materials and managing wastewater. This invention offers an integrated, intensified process to handle organic...

278

Determining the Right Air Quality for Your Compressed Air System  

Broader source: Energy.gov [DOE]

This tip sheet outlines the main factors for determining the right air quality for compressed air systems.

279

Advances in Filter Miniaturization and Design/Analysis of RF MEMS Tunable Filters  

E-Print Network [OSTI]

-band filters, the use of cross-shaped fractals in half-mode substrate-integrated-waveguide bandpass filters resulted in a 37 percent size reduction. A compact bandpass filter that occupies an area of 0.315 mm2 is implemented in 90-nm CMOS technology for 20 GHz...

Sekar, Vikram

2012-10-19T23:59:59.000Z

280

Filtering Noisy ECG Signals Using the Extended Kalman Filter Based on a Modified Dynamic ECG Model  

E-Print Network [OSTI]

Filtering Noisy ECG Signals Using the Extended Kalman Filter Based on a Modified Dynamic ECG Model for the filtering of noisy ECG signals. The method is based on a modified nonlinear dynamic model, previously introduced for the generation of synthetic ECG signals. An automatic parameter selection method has also been

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Decommissioning of TA-21-153, a /sup 227/Ac contaminated old filter building  

SciTech Connect (OSTI)

An exhaust air filter building contaminated with /sup 227/Ac was decommissioned at the Los Alamos National Laboratory, Los Alamos, New Mexico, in 1978. The building was constructed in the late 1940s to clean exhaust air from several buildings at TA-21, DP Site. It was in service until March 1970. The project involved preliminary decontamination, dismantling the building, and burying the debris at an on-site waste disposal/storage area. This report presents the details on the decommissioning procedures, health physics, waste management, environmental surveillance, and costs for the operation.

Harper, J.R.; Garde, R.

1981-11-01T23:59:59.000Z

282

Air quality in the Carlsbad cavern  

SciTech Connect (OSTI)

The air quality in the Carlsbad Cavern has been investigated, but there are no reports on radon progeny and aerosols. The purpose of this experiment was to determine the activity size distribution of radon progeny and the air exchange rate inside the Cavern. Teams from ITRI and New Mexico Institute of Mining and Technology (NMT) conducted the field study in July 1994. The ITRI graded diffusion battery (GDB) was used to determine the activity size distribution, progeny concentration, equilibrium factor, and unattached fraction of the radon progeny. The design, calibration, and performance of the GDB have been described. For this study, each stage of the GDB contained one stainless steel screen, with the mesh sizes arranged in a series of 30, 50, 145, 200, and 635 mesh from the air inlet to the outlet. A 47-nm type A/E glass fiber filter was used to collect all particles that penetrated the screens. The flow rate was 5 L/min. The average ventilation rate in the cavern is 0.0026 V/hr. Our results showed that the cavern atmosphere may be quite different from other underground environments. The atmosphere in the summer is stable and relatively free of airborne particles, partly due to the extremely slow air exchange rate.

Cheng, Yung-Seng; Chen, Tou-Rong [Tsing-Hua Univ. (Taiwan, Province of China); Wasiolek, P.T. [New Mexico Institute of Mining and Technology, Socorro, NM (United States)

1994-11-01T23:59:59.000Z

283

North American Electric Reliability Corporation Interconnections...  

Broader source: Energy.gov (indexed) [DOE]

Interconnections North American Electric Reliability Corporation Interconnections Map of the North American Electric Reliability Corporation Interconnection showing the Eastern,...

284

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance...  

Broader source: Energy.gov (indexed) [DOE]

NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report The following information...

285

Thin Air Breathing  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Thin Air Breathing Thin Air Breathing Name: Amy Location: N/A Country: N/A Date: N/A Question: Why is it hard to breathe in thin air? What health dangers do mountain climbers face at high altitudes? Replies: Among the obvious dangers of losing ones footing, the oxygen available in the air is considerable less at higher altitudes. If I recall correctly, 21% of the atmosphere at standard temperature and pressure at sea level is composed of oxygen. This is less at higher altitudes. One can lose consciousness and even die in an oxygen deficient environment with changes from oxygen content to lower than 19.5%. This can unfortunate effect can occur within minutes. Dr. Myron The air is not really thin at high altitudes. The problem is that air pressure is lower. As altitude increases, air pressure decreases. In order for your lungs to fill with air, the air pressure in your lungs has to be less than the pressure of the air outside your lungs. Air moves from areas of higher pressure to lower pressure. As your diaphragm (the muscle that separates your chest cavity from your abdominal cavity) moves downward, the size of your chest cavity increases. This decreases the pressure in your chest and air flows in. When the diaphragm is up, it puts pressure on the chest cavity and the pressure in the lungs is greater than outside the lungs. Air flows out. This is an example of Boyle's Law. The movement of the diaphragm is controlled by the brainstem. Anyway-the reason that it is harder for some people to breathe at higher altitudes is that the air pressure differences aren't as great between the inside of the lungs and outside.

286

Experimental Study of Filter Cake Cleanup by Acid/Water Jetting  

E-Print Network [OSTI]

x Page Figure 5.7: The original permeability, the permeability with filter cake, and the permeability after jetting measured for all core samples ............ 49 Figure 5.8: dR and sR calculated for all core samples... accumulator shows the HCl acid accumulator, which has a capacity of 500ml. The acid accumulator is made of Hastelloy corrosion-resistant metal. One should always make sure that the accumulators have the right fluid filled. If air is accidentally filled...

Zhang, Yanbin

2010-01-16T23:59:59.000Z

287

DEVELOPMENT OF AG-1 SECTION FI ON METAL MEDIA FILTERS - 9061  

SciTech Connect (OSTI)

Development of a metal media standard (FI) for ASME AG-1 (Code on Nuclear Air and Gas Treatment) has been under way for almost ten years. This paper will provide a brief history of the development process of this section and a detailed overview of its current content/status. There have been at least two points when dramatic changes have been made in the scope of the document due to feedback from the full Committee on Nuclear Air and Gas Treatment (CONAGT). Development of the proposed section has required resolving several difficult issues associated with scope; namely, filtering efficiency, operating conditions (media velocity, pressure drop, etc.), qualification testing, and quality control/acceptance testing. A proposed version of Section FI is currently undergoing final revisions prior to being submitted for balloting. The section covers metal media filters of filtering efficiencies ranging from medium (less than 99.97%) to high (99.97% and greater). Two different types of high efficiency filters are addressed; those units intended to be a direct replacement of Section FC fibrous glass HEPA filters and those that will be placed into newly designed systems capable of supporting greater static pressures and differential pressures across the filter elements. Direct replacements of FC HEPA filters in existing systems will be required to meet equivalent qualification and testing requirements to those contained in Section FC. A series of qualification and quality assurance test methods have been identified for the range of filtering efficiencies covered by this proposed standard. Performance characteristics of sintered metal powder vs. sintered metal fiber media are dramatically different with respect to parameters like differential pressures and rigidity of the media. Wide latitude will be allowed for owner specification of performance criteria for filtration units that will be placed into newly designed systems. Such allowances will permit use of the most appropriate metal media for a system as specified by the owner with respect to material of manufacture, media velocity, system maximum static pressure, maximum differential pressure across the filter, and similar parameters.

Adamson, D; Charles A. Waggoner, C

2008-12-09T23:59:59.000Z

288

OTA based active filter design  

E-Print Network [OSTI]

for the circuit of Fig, 17 (p, 29) was ')bown in bq. (4. $'6) to be gml gm A = 2 s ClC2 sClgmZ gm gm 1 2 (4. 40) 42 The fourth-order system shown in 1'ig. 24 has the function A gm1gm2 CIC2 gm2 gm1gm2 L '" c'CC 2 1 2 gm&gm4 CI 2 (4. 41) I... and low pass filter using the circuit of Fig. 6 Thc t&an&i pass transfer function was of tne for? Khls Ar s +(a+b-KhZ)s+ab (2 4) K = n C where G = GZ+G3 G 1 (2. 5) a = (Gy+G) / C] (2. 6) b = GG4 / C(G+G4) (2. 7) h] = GZ/g where g = G+G4 w...

Ferrell, John Steven

2012-06-07T23:59:59.000Z

289

Automatic tuning for linearly tunable filter  

E-Print Network [OSTI]

A new tuning scheme for linearly tunable high-Q filters is proposed. The tuning method is based on using the phase information for both frequency and Q factor tuning. There is no need to find out the relationship between a filter's passband...

Huang, Sung-Ling

2004-09-30T23:59:59.000Z

290

A fuzzy-tuned adaptive Kalman filter  

E-Print Network [OSTI]

In this paper, fuzzy processing is applied to the adaptive Kalman filter. The filter gain coefficients are adapted over a 50 dB range of unknown signal/noise dynamics, using fuzzy membership functions. Specific simulation results are shown for a...

Painter, John H.; Young Hwan Lho

1993-12-01T23:59:59.000Z

291

Cryogenic Filters for RFI Mitigation in Radioastronomy  

E-Print Network [OSTI]

RFI mitigation in Radioastronomy can be achieved adopting cryogenic filters in appropriate typologies. A study has been conducted in L, C and X band with the evaluation of the filter architecture in copper, with theoretical estimation, computer simulations, prototypes realization, laboratory measurements. Such work has been preliminary to the realization of HTS samples with the purpose of a similar complete characterization approach.

G. Tuccari; A. Caddemi; S. Barbarino; G. Nicotra; F. Consoli; F. Schilliro; F. Catalfamo

2005-01-03T23:59:59.000Z

292

MidAmerican Energy (Gas) - Residential Energy Efficiency Rebate Programs |  

Broader source: Energy.gov (indexed) [DOE]

Home Weatherization Home Weatherization Commercial Weatherization Manufacturing Appliances & Electronics Water Heating Program Info Start Date 1/1/2011 Expiration Date 12/31/2012 State South Dakota Program Type Utility Rebate Program Rebate Amount Furnaces: $250-$400 Furnace Fan Motors: $50 Boilers: $150-$400 Water Heaters: $50-$100 Energy Audit: Free including water heater/pipe insulation Building Insulation: 70% or $750 Provider MidAmerican Energy Company MidAmerican Energy offers a variety of incentives for residential customers to improve the energy efficiency of homes. Eligible customers are eligible for rebates on furnaces, furnace fan motors, boilers, water heaters, air conditioners, air-source heat pumps, geothermal heat pumps and insulation. Customers should see the equipment brochure for more rebate information and

293

AMERICAN STATISTICAL ASSOCIATION (ASA)  

U.S. Energy Information Administration (EIA) Indexed Site

AMERICAN STATISTICAL ASSOCIATION (ASA) AMERICAN STATISTICAL ASSOCIATION (ASA) MEETING OF THE COMMITTEE ON ENERGY STATISTICS WITH THE ENERGY INFORMATION ADMINISTRATION (EIA) Washington, D.C. Friday, April 29, 2005 COMMITTEE MEMBERS: NICOLAS HENGARTNER, Chair Los Alamos National Laboratory MARK BERNSTEIN RAND Corporation CUTLER CLEVELAND Center for Energy and Environmental Studies JAE EDMONDS Pacific Northwest National Laboratory MOSHE FEDER Research Triangle Institute BARBARA FORSYTH Westat WALTER HILL St. Mary's College of Maryland NEHA KHANNA Binghamton University NAGARAJ K. NEERCHAL University of Maryland Baltimore County SUSAN M. SEREIKA University of Pittsburgh DARIUS SINGPURWALLA LECG RANDY R. SITTER Simon Fraser University ALSO PRESENT: MARGOT ANDERSON Energy Information Administration ALSO PRESENT (CONT'D):

294

Central American electrical interconnection  

SciTech Connect (OSTI)

A technical cooperation grant of $2.25 million, designed to strengthen the capacity of Central American countries to operate their regional interconnected electrical system, was announced by the Inter-American Development Bank (IDB). The grant, extended from the banks Fund for Special Operations, will help improve the capacity of the regions electric power companies to achieve economical, safe operation of the interconnected electric power systems. The funds will also be used to finance regional studies of the accords, procedures, regulations, and supervisory mechanisms for the system, as well as program development and data bases.

Not Available

1988-12-01T23:59:59.000Z

295

AMERICAN STATISTICAL ASSOCIATION  

U.S. Energy Information Administration (EIA) Indexed Site

AMERICAN STATISTICAL ASSOCIATION AMERICAN STATISTICAL ASSOCIATION + + + + + COMMITTEE ON ENERGY STATISTICS + + + + + FALL MEETING + + + + + FRIDAY OCTOBER 17, 2003 + + + + + The Committee met in Room 8E089 in the Forrestal Building, 1000 Independence Avenue, S.W., Washington, D.C., at 8:30 a.m., Jay Breidt, Chair, presiding. PRESENT F. JAY BREIDT Chair NICOLAS HENGARTNER Vice Chair JOHNNY BLAIR Committee Member MARK BURTON Committee Member JAE EDMONDS Committee Member MOSHE FEDER Committee Member JAMES K. HAMMITT Committee Member NEHA KHANA Committee Member NAGARAJ K. NEERCHAL Committee Member

296

STATEMENT OF CONSIDERATIONS REQUEST BY AMERICAN SUPERCONDUCTOR CORPORATION FOR AN  

Broader source: Energy.gov (indexed) [DOE]

AMERICAN SUPERCONDUCTOR CORPORATION FOR AN AMERICAN SUPERCONDUCTOR CORPORATION FOR AN ADVANCE WAIVER OF PATENT RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. DE-FC36-03GO13032; W(A)-03-048; CH1166 As set out in the attached waiver petition and in subseguent discussions with DOE Patent Counsel, American Superconductor Corporation (AMSC), a domestic small business, has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above identified cooperative agreement by its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 96-517, as amended, and National Laboratories Referring to item 2 of AMSC's waiver petition, AMSC is leading a teaming arrangement including Nexans France, Air Liquide and the Long Island Power Authority (LIPA) to develop,

297

Thermovoltaic semiconductor device including a plasma filter  

DOE Patents [OSTI]

A thermovoltaic energy conversion device and related method for converting thermal energy into an electrical potential. An interference filter is provided on a semiconductor thermovoltaic cell to pre-filter black body radiation. The semiconductor thermovoltaic cell includes a P/N junction supported on a substrate which converts incident thermal energy below the semiconductor junction band gap into electrical potential. The semiconductor substrate is doped to provide a plasma filter which reflects back energy having a wavelength which is above the band gap and which is ineffectively filtered by the interference filter, through the P/N junction to the source of radiation thereby avoiding parasitic absorption of the unusable portion of the thermal radiation energy.

Baldasaro, Paul F. (Clifton Park, NY)

1999-01-01T23:59:59.000Z

298

Digital filtering in a disease detection system  

SciTech Connect (OSTI)

A low-pass, nonrecursive digital filter has been designed to process data in an automated enzyme immunoassay system. The software implemented filter has been installed in the Intel 80/10 system controller. A low-speed sample rate of three samples per second allowed the filter algorithm to be programmed in the high-level FORTRAN language with a resultant execution speed of 0.6 seconds per day array. Fourier techniques are used to derive a zero phase shift filter algorithm from a frequency domain prototype. The resulting alogrithm is modified by a Hamming window to reduce transients and Gibbs phenomenon oscillations. Observations on the effectiveness of the filter under full system operation indicate a 90% data recovery rate.

Brown, R.R.

1983-01-01T23:59:59.000Z

299

Annual report of the Surface Air Sampling Program  

SciTech Connect (OSTI)

Tropospheric concentrations of radioactive debris from nuclear weapons tests are currently at or below the lower limits of detection of our analytical systems. Following the accident at the Chernobyl nuclear reactor in the USSR on April 26, 1986, fission products were detected at all sampling sites located in the Northern Hemisphere. Short-term variations in the concentrations of {sup 7}Be and {sup 210}Pb at sites in which weekly air filter samples are analyzed probably result from variations in meteorological factors. The data from quality assurance samples indicate that the reliability of the air filter measurements are acceptable. The gross gamma-ray activity and the monthly mean surface air concentrations of {sup 7}Be, {sup 95}Zr, {sup 137}CS, {sup 144}Ce and {sup 210}Pb at sampling sites in the Surface Air Sampling Program during 1985 through 1988 are presented. The weekly mean surface air concentrations of {sup 7}Be, {sup 137}Cs, {sup 144}Ce and {sup 210}Pb are also presented for 11 sites. 2 refs., 1 fig., 27 tabs.

Larsen, R.J.; Sanderson, C.G.

1990-02-01T23:59:59.000Z

300

Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop  

DOE Patents [OSTI]

Methods for generating and applying coatings to filters with porous material in order to reduce large pressure drop increases as material accumulates in a filter, as well as the filter exhibiting reduced and/or more uniform pressure drop. The filter can be a diesel particulate trap for removing particulate matter such as soot from the exhaust of a diesel engine. Porous material such as ash is loaded on the surface of the substrate or filter walls, such as by coating, depositing, distributing or layering the porous material along the channel walls of the filter in an amount effective for minimizing or preventing depth filtration during use of the filter. Efficient filtration at acceptable flow rates is achieved.

Sappok, Alexander; Wong, Victor

2014-11-18T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

The First Americans  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Americans Americans Nature Bulletin No. 360-A November 29, 1969 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation THE FIRST AMERICANS When the Norsemen and then Columbus "discovered" America they found people here -- people with bronze skins and straight black hair. Because he thought he had sailed across the world and found a sea passage to India. Columbus called these people "Indios". He was wrong but we still call them Indians. It is now generally accepted by scientists that the first humans arrived on this American continent some thirty or forty thousand years ago. It is believed that they came from Asia, across what we call Bering Strait. The distance from the islands at the westernmost tip of Alaska to the easternmost tip of Siberia is only 59 miles. In clear weather you can see from land to land. In ancient times there may have been a bridge of solid ice between the two shores, or there might have been an actual land connection between the two continents. But even if there were a 5-mile gap of water it could have been crossed in primitive canoes by hungry people hunting for game. Hunger has been the mainspring of civilization.

302

Association of American Geographers  

Science Journals Connector (OSTI)

... THE thirtieth annual meeting of the Association of American Geographers was held on December 26–28, at North-western University, Evanston, Illinois. In the three day session fifty ... six in urban geography. The remainder represented a diversity of subjects. The afternoon of December 26 was devoted to the general subject of “Conventionalizing Geographic Investigation and Presentation”. The ...

1934-01-27T23:59:59.000Z

303

Ventilation System Effectiveness and Tested Indoor Air Quality Impacts  

SciTech Connect (OSTI)

Ventilation system effectiveness testing was conducted at two unoccupied, single-family, detached lab homes at the University of Texas - Tyler. Five ventilation system tests were conducted with various whole-building ventilation systems. Multizone fan pressurization testing characterized building and zone enclosure leakage. PFT testing showed multizone air change rates and interzonal airflow. Cumulative particle counts for six particle sizes, and formaldehyde and other Top 20 VOC concentrations were measured in multiple zones. The testing showed that single-point exhaust ventilation was inferior as a whole-house ventilation strategy. It was inferior because the source of outside air was not direct from outside, the ventilation air was not distributed, and no provision existed for air filtration. Indoor air recirculation by a central air distribution system can help improve the exhaust ventilation system by way of air mixing and filtration. In contrast, the supply and balanced ventilation systems showed that there is a significant benefit to drawing outside air from a known outside location, and filtering and distributing that air. Compared to the Exhaust systems, the CFIS and ERV systems showed better ventilation air distribution and lower concentrations of particulates, formaldehyde and other VOCs. System improvement percentages were estimated based on four System Factor Categories: Balance, Distribution, Outside Air Source, and Recirculation Filtration. Recommended System Factors could be applied to reduce ventilation fan airflow rates relative to ASHRAE Standard 62.2 to save energy and reduce moisture control risk in humid climates. HVAC energy savings were predicted to be 8-10%, or $50-$75/year.

Rudd, A.; Bergey, D.

2014-02-01T23:59:59.000Z

304

Environmental Quality: Air (Louisiana)  

Broader source: Energy.gov [DOE]

The Department of Environmental Quality regulates air quality in Louisiana. The Department has an established a fee system for funding the monitoring, investigation and other activities required...

305

Air-Quality Regulations  

Science Journals Connector (OSTI)

n...Federal, state and/or local regulations constructed for the purpose of protecting air quality, e.g., low volatile organic compounds...

Jan W. Gooch

2011-01-01T23:59:59.000Z

306

Air-quality regulations  

Science Journals Connector (OSTI)

n....Federal, state and/or local regulations constructed for the purpose of protecting air quality, e.g., low volatile organic compounds...

2007-01-01T23:59:59.000Z

307

Evaluation of Passive and Active Soot Filters for Removal of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Passive and Active Soot Filters for Removal of Particulate Emissions from Diesel Engines Evaluation of Passive and Active Soot Filters for Removal of Particulate Emissions from...

308

Development of SCR on Diesel Particulate Filter System for Heavy...  

Broader source: Energy.gov (indexed) [DOE]

SCR on Diesel Particulate Filter System for Heavy Duty Applications Development of SCR on Diesel Particulate Filter System for Heavy Duty Applications Evaluation of a system...

309

Expanded Capacity Microwave-Cleaned Diesel Particulate Filter...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Expanded Capacity Microwave-Cleaned Diesel Particulate Filter Expanded Capacity Microwave-Cleaned Diesel Particulate Filter 2002 DEER Conference Presentation: Industrial Ceramic...

310

Predicting Thermal Stress in Diesel Particulate Filters | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Thermal Stress in Diesel Particulate Filters Predicting Thermal Stress in Diesel Particulate Filters 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Corning...

311

Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneratio...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel Consumption Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel...

312

Neutron Imaging of Diesel Particulate Filters | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Neutron Imaging of Diesel Particulate Filters Neutron Imaging of Diesel Particulate Filters Neutron computed tomography shows soot and ash loading in a cordierite diesel...

313

Non-Destructive Neutron Imaging to Analyze Particulate Filters...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Neutron Imaging to Analyze Particulate Filters Non-Destructive Neutron Imaging to Analyze Particulate Filters Non-destructive, non-invasive imaging is being employed in the...

314

Durability of Diesel Engine Particulate Filters (Agreement ID...  

Broader source: Energy.gov (indexed) [DOE]

Durability of Diesel Engine Particulate Filters (Agreement ID:10461) Durability of Diesel Engine Particulate Filters (Agreement ID:10461) 2013 DOE Hydrogen and Fuel Cells Program...

315

Cryogenic metal mesh bandpass filters for submillimeter astronomy  

Science Journals Connector (OSTI)

A bandpass filter of the double-halfwave design has been developed for use in submillimeter astronomy. The filter is rugged, easily tunable, easy to construct, and cryogenically...

Dragovan, Mark

1984-01-01T23:59:59.000Z

316

Improvement and Simplification of Diesel Particulate Filter System...  

Broader source: Energy.gov (indexed) [DOE]

and Simplification of Diesel Particulate Filter System using a Ceria-Based Fuel-Borne Catalyst in Serial Applications Improvement and Simplification of Diesel Particulate Filter...

317

California ARB Verification Testing of the CBSTM Soot Filter...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

California ARB Verification Testing of the CBSTM Soot Filter for Stationary Diesel Applications California ARB Verification Testing of the CBSTM Soot Filter for Stationary Diesel...

318

Design of Water Filter for Third World Countries  

E-Print Network [OSTI]

Research &Responsibilities Sections Written Reverse osmosis filter research Acknowledgements Slow sand.2 Reverse Osmosis Filters 12.0 Recommendations _______________ Jingwen Wang #12;- 4 - Table of Contents List

Sun, Yu

319

U-252: Barracuda Web Filter Input Validation Flaws Permit Cross...  

Broader source: Energy.gov (indexed) [DOE]

2: Barracuda Web Filter Input Validation Flaws Permit Cross-Site Scripting Attacks U-252: Barracuda Web Filter Input Validation Flaws Permit Cross-Site Scripting Attacks September...

320

Tribological performance of hybrid filtered arc-magnetron coatings...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tribological performance of hybrid filtered arc-magnetron coatings - Part I: Coating deposition process and basic coating Tribological performance of hybrid filtered arc-magnetron...

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology on Heavy and Light Vehicles Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology on Heavy and...

322

Neutron Imaging of Diesel Particulate Filters  

SciTech Connect (OSTI)

This article presents nondestructive neutron computed tomography (nCT) measurements of Diesel Particulate Filters (DPFs) as a method to measure ash and soot loading in the filters. Uncatalyzed and unwashcoated 200cpsi cordierite DPFs exposed to 100% biodiesel (B100) exhaust and conventional ultra low sulfur 2007 certification diesel (ULSD) exhaust at one speed-load point (1500rpm, 2.6bar BMEP) are compared to a brand new (never exposed) filter. Precise structural information about the substrate as well as an attempt to quantify soot and ash loading in the channel of the DPF illustrates the potential strength of the neutron imaging technique.

Strzelec, Andrea [ORNL; Bilheux, Hassina Z [ORNL; FINNEY, Charles E A [ORNL; Daw, C Stuart [ORNL; Foster, Prof. Dave [University of Wisconsin; Rutland, Prof. Christopher J. [University of Wisconsin; Schillinger, Burkhard [FRM-II, Technische Universitaet Munchen; Schulz, Michael [FRM-II, Technische Universitaet Munchen

2009-01-01T23:59:59.000Z

323

Electrically heated particulate filter embedded heater design  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine and wherein an upstream surface of the particulate filter includes machined grooves. A grid of electrically resistive material is inserted into the machined grooves of the exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF.

Gonze, Eugene V.; Chapman, Mark R.

2014-07-01T23:59:59.000Z

324

Metrics For Comparing Plasma Mass Filters  

SciTech Connect (OSTI)

High-throughput mass separation of nuclear waste may be useful for optimal storage, disposal, or environmental remediation. The most dangerous part of nuclear waste is the fission product, which produces most of the heat and medium-term radiation. Plasmas are well-suited to separating nuclear waste because they can separate many different species in a single step. A number of plasma devices have been designed for such mass separation, but there has been no standardized comparison between these devices. We define a standard metric, the separative power per unit volume, and derive it for three different plasma mass filters: the plasma centrifuge, Ohkawa filter, and the magnetic centrifugal mass filter. __________________________________________________

Abraham J. Fetterman and Nathaniel J. Fisch

2012-08-15T23:59:59.000Z

325

Activated-charcoal filters: water treatment, pollution control, and industrial applications. January 1970-July 1988 (citations from the US Patent data base). Report for January 1970-July 1988  

SciTech Connect (OSTI)

This bibliography contains citations of selected patents concerning activated-charcoal filters and their applications in water treatment, pollution control, and industrial processes. Filtering methods and equipment for air and water purification, industrial distillation and extraction, industrial leaching, and filtration of toxic gases and pollutants are described. Applications include drinking water purification, filtering beverages, production of polymer materials, solvent and metal recovery, swimming pool filtration, waste conversion, automobile fuel and exhaust systems, and footwear deodorizing. (Contains 129 citations fully indexed and including a title list.)

Not Available

1988-08-01T23:59:59.000Z

326

International MODIS and AIRS processing package: AIRS products and applications  

E-Print Network [OSTI]

International MODIS and AIRS processing package: AIRS products and applications Elisabeth Weisz presented and discussed in this paper demonstrate that the IMAPP AIRS retrieval product is rigorously parameters from the operational AIRS L2 product and data from other instruments. Keywords: AIRS, IMAPP

Li, Jun

327

Clean air act and National Ambient Air Quality Standards (NAAQS)  

E-Print Network [OSTI]

Clean air act and National Ambient Air Quality Standards (NAAQS) Ozone: Sources/Environmental Effects Particulates (PM): Sources/Environmental Effects #12;National Ambient Air Quality Standards (NAAQS) The Clean Air Act requires EPA to set National Ambient Air Quality Standards for pollutants considered

Weber, Rodney

328

Method and apparatus for a self-cleaning filter  

DOE Patents [OSTI]

A method and apparatus for removing fine particulate matter from a fluid stream without interrupting the overall process or flow. The flowing fluid inflates and expands the flexible filter, and particulate is deposited on the filter media while clean fluid is permitted to pass through the filter. This filter is cleaned when the fluid flow is stopped, the filter collapses, and a force is applied to distort the flexible filter media to dislodge the built-up filter cake. The dislodged filter cake falls to a location that allows undisrupted flow of the fluid after flow is restored. The shed particulate is removed to a bin for periodic collection. A plurality of filter cells can operate independently or in concert, in parallel, or in series to permit cleaning the filters without shutting off the overall fluid flow. The self-cleaning filter is low cost, has low power consumption, and exhibits low differential pressures.

Diebold, James P. (Lakewood, CO); Lilley, Arthur (Finleyville, PA); Browne, III, Kingsbury (Golden, CO); Walt, Robb Ray (Aurora, CO); Duncan, Dustin (Littleton, CO); Walker, Michael (Longmont, CO); Steele, John (Aurora, CO); Fields, Michael (Arvada, CO)

2010-11-16T23:59:59.000Z

329

Compressed Air System Optimization  

E-Print Network [OSTI]

Several years ago I went to a gas station and noticed that my car's tires were low on air. I saw the gas station had an air compressor, but it cost a quarter to use the compressor. I paid my quarter and used the compressor. I realized...

Aegerter, R.

330

Portable oven air circulator  

DOE Patents [OSTI]

A portable air circulating apparatus for use in cooking ovens which is used to create air currents in the oven which transfer heat to cooking foodstuffs to promote more rapid and more uniform cooking or baking, the apparatus including a motor, fan blade and housing of metallic materials selected from a class of heat resistant materials.

Jorgensen, Jorgen A. (Bloomington, MN); Nygren, Donald W. (Minneapolis, MN)

1983-01-01T23:59:59.000Z

331

Study of microscopic structure of porous media - fine coal filter cakes  

SciTech Connect (OSTI)

The macroscopic properties of the porous media, e.g., permeability, capillary pressure, relative permeability, depend upon the microscopic structure of the porous medium. In the coal preparation plants, the filtration and dewatering rates of the fine coal filter cakes are important in determining the final moisture content. The microscopic structure of the porous coal filter cakes plays an important role in these operations. Moreover, the two phase flow through the porous medium can be explained in detail by considering its pore structure. Hence, the development of a technique for the micro-structural analysis of unconsolidated coal filter cakes is investigated. The technique developed is also applicable to many consolidated porous media like sandstones, rocks, etc. Optical methods were utilized to study the micro-structure of fine coal cakes. The investigation of -32 mesh Pittsburgh seam coal cakes reveals a non-uniform structure at low solid concentration of 0.33 kg coal/kg water. An increase in the solid concentration in the slurry produces a more uniform structure with an increase in the filtration and dewatering rates. It was found that coal filter cakes are incompressible over the range of 28 to 67 kPa applied vacuum. An important aspect of this work was to provide quantitative information about the presence of air bubbles in the coal filter cakes. These air bubbles are evolved from the aerated slurry and they reduce the filtration rates. A linear correlation between the particle and pore size distribution of -32 mesh Pittsburgh coal was found.

Kakwani, R.M.

1983-01-01T23:59:59.000Z

332

Meeting the Air Leakage  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meeting the Air Leakage Meeting the Air Leakage Requirements of the 2012 IECC The U.S. Department of Energy (DOE) recognizes the enormous potential that exists for improving the energy efficiency, safety and comfort of homes. The newest edition of the International Energy Conservation Code ® (IECC) (2012) sets the bar higher for energy efficiency, and new air sealing requirements are one of the key new provisions. This guide is a resource for understanding the new air leakage requirements in the 2012 IECC and suggestions on how these new measures can be met. It also provides information from Building America's Air Sealing Guide, Best Practices and case studies on homes that are currently meeting the provisions. The 2012 IECC and a few International Residential Code (IRC) requirements are referenced throughout the guide.

333

Fail Save Shut Off Valve for Filtering Systems Employing Candle Filters  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Fail Save Shut Off Fail Save Shut Off Valve for Filtering Systems Employing Candle Filters Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing United States Patent Number 6,981,516 entitled "Fail save shut off valve for filtering systems employing candle filters." Disclosed in this patent is a novel fail save shut off valve system that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over- pressurization. It is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system, the fail save valve stops the flow

334

Dissipative Cryogenic Filters with Zero DC Resistance  

SciTech Connect (OSTI)

The authors designed, implemented and tested cryogenic RF filters with zero DC resistance, based on wires with a superconducting core inside a resistive sheath. The superconducting core allows low frequency currents to pass with negligible dissipation. Signals above the cutoff frequency are dissipated in the resistive part due to their small skin depth. The filters consist of twisted wire pairs shielded with copper tape. Above approximately 1 GHz, the attenuation is exponential in {radical}{omega}, as typical for skin depth based RF filters. By using additional capacitors of 10 nF per line, an attenuation of at least 45 dB above 10 MHz can be obtained. Thus, one single filter stage kept at mixing chamber temperature in a dilution refrigerator is sufficient to attenuate room temperature black body radiation to levels corresponding to 10 mK above about 10 MHz.

Bluhm, Hendrik; Moler, Kathryn A.; /Stanford U., Appl. Phys. Dept

2008-04-22T23:59:59.000Z

335

Piezoelectric MEMS resonator characterization and filter design  

E-Print Network [OSTI]

This thesis presents modeling and first measurements of a new piezoelectric MEMS resonator developed at Draper Laboratory. In addition, some simple filter designs incorporating the resonator with predicted performance ...

Kang, Joung-Mo, 1978-

2004-01-01T23:59:59.000Z

336

Two in One: SCR on Filter  

Broader source: Energy.gov (indexed) [DOE]

1 BASF Corporation; 25 MiddlesexEssex Turnpike; Iselin, NJ 08830 USA 2 BASF Catalysts Germany GmbH; Freundallee 23, 30173 Hannover Two in One: SCR on Filter DEER 2010 2 Potential...

337

Emergency Filter for Low Pressure EGR  

Broader source: Energy.gov [DOE]

This project uses CFD simulation and laboratory tests to design single- and multi-layer mesh as an EGR emergency filter to prevent combustion particles from passing back to the engine.

338

Plasma Mass Filters For Nuclear Waste Reprocessing  

SciTech Connect (OSTI)

Practical disposal of nuclear waste requires high-throughput separation techniques. The most dangerous part of nuclear waste is the fission product, which contains the most active and mobile radioisotopes and produces most of the heat. We suggest that the fission products could be separated as a group from nuclear waste using plasma mass filters. Plasmabased processes are well suited to separating nuclear waste, because mass rather than chemical properties are used for separation. A single plasma stage can replace several stages of chemical separation, producing separate streams of bulk elements, fission products, and actinoids. The plasma mass filters may have lower cost and produce less auxiliary waste than chemical processing plants. Three rotating plasma configurations are considered that act as mass filters: the plasma centrifuge, the Ohkawa filter, and the asymmetric centrifugal trap.

Abraham J. Fetterman and Nathaniel J. Fisch

2011-05-26T23:59:59.000Z

339

Efficient implementation schemes for image enhancement filters  

E-Print Network [OSTI]

Generalized median filtering techniques that have appeared in previous literature suffer from some severe disadvantages. They are not only hardware intensive and time consuming but also tend to smear image edges. These shortcomings can be overcome...

Yusuf, Khadem Mahmud

2012-06-07T23:59:59.000Z

340

Onsite Wastewater Treatment Systems: Sand Filters  

E-Print Network [OSTI]

Sand filters are beds of granular material, or sand, drained from underneath so that pretreated wastewater can be treated, collected and distributed to a land application system. This publication explains the treatment, design, operation...

Lesikar, Bruce J.

2008-10-23T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

An optimal filtering algorithm for table constraints  

Science Journals Connector (OSTI)

Filtering algorithms for table constraints are constraint-based, which means that the propagation queue only contains information on the constraints that must be reconsidered. This paper proposes four efficient value-based algorithms for table constraints, ...

Jean-Baptiste Mairy; Pascal Van Hentenryck; Yves Deville

2012-10-01T23:59:59.000Z

342

Filtering Turbulent Sparsely Observed Geophysical Flows  

Science Journals Connector (OSTI)

Filtering sparsely turbulent signals from nature is a central problem of contemporary data assimilation. Here, sparsely observed turbulent signals from nature are generated by solutions of two-layer quasigeostrophic models with turbulent cascades ...

John Harlim; Andrew J. Majda

2010-04-01T23:59:59.000Z

343

Optimization of tunable silicon compatible microring filters  

E-Print Network [OSTI]

Microring resonators can be used as pass-band filters for wavelength division demultiplexing in electronic-photonic integrated circuits for applications such as analog-to-digital converters (ADCs). For high quality signal ...

Amatya, Reja

2008-01-01T23:59:59.000Z

344

Advanced filters and components for power applications  

E-Print Network [OSTI]

The objective of this thesis is to improve the high frequency performance of components and filters by better compensating the parasitic effects of practical components. The main application for this improvement is in ...

Neugebauer, Timothy Carl, 1975-

2004-01-01T23:59:59.000Z

345

Development of Self-destructing Filter Cake  

E-Print Network [OSTI]

chemical reaction rate, especially at high temperatures. This study describes a novel self-destructing drilling fluid system. Filter cakes are formed from a formula of drilling fluid that have a mixture of solid acid precursor and particulate solid acid...

Rostami, Ameneh

2010-08-24T23:59:59.000Z

346

Building an American Economy to Last: American Competiveness in  

Broader source: Energy.gov (indexed) [DOE]

Building an American Economy to Last: American Competiveness in Building an American Economy to Last: American Competiveness in Manufacturing Building an American Economy to Last: American Competiveness in Manufacturing August 16, 2012 - 9:20am Addthis Saving Energy and Resources 1 of 4 Saving Energy and Resources Thanks to additive manufacturing technology, Oak Ridge National Laboratory was able to fabricate a robotic hand with less energy use and material waste. The novel, lightweight, low-cost fluid powered hand was selected for a 2012 R&D 100 award. | Photo courtesy of Oak Ridge National Laboratory. Partnering with Industry 2 of 4 Partnering with Industry The Energy Department's Manufacturing Demonstration Facility at Oak Ridge National Laboratory includes an array of state-of-the-art additive manufacturing capabilities, allowing researchers and industry to develop

347

Building an American Economy to Last: American Competiveness in  

Broader source: Energy.gov (indexed) [DOE]

Building an American Economy to Last: American Competiveness in Building an American Economy to Last: American Competiveness in Manufacturing Building an American Economy to Last: American Competiveness in Manufacturing August 16, 2012 - 9:20am Addthis Saving Energy and Resources 1 of 4 Saving Energy and Resources Thanks to additive manufacturing technology, Oak Ridge National Laboratory was able to fabricate a robotic hand with less energy use and material waste. The novel, lightweight, low-cost fluid powered hand was selected for a 2012 R&D 100 award. | Photo courtesy of Oak Ridge National Laboratory. Partnering with Industry 2 of 4 Partnering with Industry The Energy Department's Manufacturing Demonstration Facility at Oak Ridge National Laboratory includes an array of state-of-the-art additive manufacturing capabilities, allowing researchers and industry to develop

348

The American Elm  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Elm Elm Nature Bulletin No. 279-A October 21, 1967 Forest Preserve District of Cook County Richard B. Ogilvie, President Roland F. Eisenbeis, Supt. of Conservation THE AMERICAN ELM For three centuries, the stately graceful American Elm -- "the tree that like a fountain rises" -- has been our favorite shade tree, and around it have grown some of our finest traditions. The early colonists found huge patriarchs, which reminded them of the magnificent English Elms, and they planted seedlings to shade their homes and village commons. Today, innumerable New England roadways are lined with giant elms, their great arching limbs forming canopies like a cathedral roof. When the pioneers moved westward, they found this tree everywhere in the bottomlands and on low fertile hills. NOW, throughout the Middle West -- even in prosaic prairie towns -- streets and public buildings are shaded and given character by beautiful elms.

349

NORTH AMERICAN WATER OFFICE  

Broader source: Energy.gov (indexed) [DOE]

NORTH AMERICAN WATER OFFICE NORTH AMERICAN WATER OFFICE P.O. Box 174 Lake Elmo, MN 55042 Phone: (612) 770-3861 Fax: (612) 770-3976 January 30, 1998 US Department of Energy Office of General Council GC-52 1000 Independence Ave. SW Washington DC 20585 RE: Preparation of Report to Congress on Price-Anderson Act Dear Office of General Council: The Price Anderson Act should be eliminated. The Price Anderson Act assumes that the encouragement and growth of the commercial nuclear industry is in the public interest. It is not. Rational evaluation of the commercial nuclear industry forces the conclusion that the Price Anderson Act simply shields the commercial nuclear industry from costs that it would otherwise, in a fair market setting, be forced to internalize and pay. Price Anderson amounts to

350

AMERICAN HERITAGE OF  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AMERICAN HERITAGE OF AMERICAN HERITAGE OF raven 10~ SUMMER 1995 $d.OU VOLUME 11/NU~IBH;R 1 i Y .rt: r "~ ~:rih a ~~ to Invent * Tf~e~'' ~ °of _._.. , _._~.__ ~y~,: ..~_, ec no o~ r HE TOM OMB FIFTY YEARS AGO THIS SUNI~fER, THE WORLD WAS changed forever when the first nuclear bomb ex- ploded above the New Mexico desert and then bombs were dropped on the cities of Hiroshima and Nagasaki, Japan. The moral, psychological, and geopolitical ramifications of this most powerful and revolution- ary of all technologies and its use have been matters of universal con- cern ever since. They will undoubtedly be the subject of particularly intense discussion this summer. Invention ~ Technology's contribution is a look at the anniversary from the magazine's unique perspective, examining the making of the

351

Cromer Cycle Air Conditioner: A Unique Air-Conditioner Desiccant Cycle to Enhance Dehumidification and Save Energy  

E-Print Network [OSTI]

-Enhanced Cooling and Dehumidification System," ASBRAE Transactions 1994, V.100, Pt. 2, #3816, American Society of Heating, Refrigeration and Air Conditioning Engineers, Atlanta, GA, 1994 [7] Chant, E. E., Transient and Stearj, State Simulations of an Advanced..., the Electric Power Research Institute (EPRI) estimate from their surveys that 30% of their customers use dehumidifiers. [1] In supermarkets, where much of the sensible cooling is already done by the display cases, wasteful overcooling is done...

Cromer, C. J.

2000-01-01T23:59:59.000Z

352

Optimal multihump filter for photometric redshifts  

E-Print Network [OSTI]

We propose a novel type filter for multicolor imaging to improve on the photometric redshift estimation of galaxies. An extra filter - specific to a certain photometric system - may be utilized with high efficiency. We present a case study of the Hubble Space Telescope's Advanced Camera for Surveys and show that one extra exposure could cut down the mean square error on photometric redshifts by 34% over the z<1.3 redshift range.

Tamas Budavari; Alexander S. Szalay; Istvan Csabai; Andrew J. Connolly; Zlatan Tsvetanov

2001-06-05T23:59:59.000Z

353

Impedance Matched Absorptive Thermal Blocking Filters  

E-Print Network [OSTI]

We have designed, fabricated and characterized absorptive thermal blocking filters for cryogenic microwave applications. The transmission line filter's input characteristic impedance is designed to match $50\\,\\Omega$ and its response has been validated from 0-to-50\\,GHz. The observed return loss in the 0-to-20\\,GHz design band is greater than $20\\,$dB and shows graceful degradation with frequency. Design considerations and equations are provided that enable this approach to be scaled and modified for use in other applications.

Wollack, E J; Rostem, K; U-Yen, K

2014-01-01T23:59:59.000Z

354

Air Handling Unit Supply Air Temperature Optimization During Economizer Cycles  

E-Print Network [OSTI]

Air Handling Unit Supply Air Temperature Optimization during Economizer Cycles Gang Wang, Zhan Wang, Ke Xu and Mingsheng Liu University of Nebraska – Lincoln Omaha, Nebraska, USA ABSTRACT Most air handling units (AHUs) in commercial...

Xu, K.; Liu, M.; Wang, G.; Wang, Z.

2007-01-01T23:59:59.000Z

355

E-Print Network 3.0 - adaptive notch filters Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

filters Search Powered by Explorit Topic List Advanced Search Sample search results for: adaptive notch filters...

356

E-Print Network 3.0 - active power filtering Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

filtering Search Powered by Explorit Topic List Advanced Search Sample search results for: active power filtering...

357

E-Print Network 3.0 - active power filter Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

filter Search Powered by Explorit Topic List Advanced Search Sample search results for: active power filter...

358

E-Print Network 3.0 - active power filters Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

filters Search Powered by Explorit Topic List Advanced Search Sample search results for: active power filters...

359

-APTKA E AMERICAN O  

Broader source: Energy.gov (indexed) [DOE]

APTKA E AMERICAN O APTKA E AMERICAN O w ~%~'~ PUBCIC TRANSPORTATION fa ASSOCIATION 2001-006487 3/9 P 4:06 Wash March 7, 2001 Eal , The Honorable Spencer Abraham al Secretary iodadbpOa U.S. Department of Energy wr dL b, Forrestal Building 6dJS 1 * 1000 Independence Avenue, N.W. BaA roB Washington, DC 20585-1000 GWE KtsO mg Dear Mr. Secretary: hidcI ABd ramnU I Ssb 6idL fian I write on behalf of the American Public Transportation Association (APTA) to SWais express support for the development of a national energy policy. As President Bush Ei;. LtrW highlighted in his February 27 address to a joint session of Congress, regional energy e, &mw^, u* shortages have become serious concerns and have brought attention to this major issue GhaI facing our country. iBtdL Wd _r.nwabtis As the trade association representing the public transportation industry, we would

360

3-D woven, mullite matrix, composite filter  

SciTech Connect (OSTI)

Westinghouse, with Techniweave as a major subcontractor, is conducting a three-phase program aimed at providing advanced candle filters for a 1996 pilot scale demonstration in one of the two hot gas filter systems at Southern Company Service`s Wilsonville PSD Facility. The Base Program (Phases I and II) objective is to develop and demonstrate the suitability of the Westinghouse/Techniweave next generation composite candle filter for use in Pressurized Fluidized Bed Combustion (PFBC) and/or Integrated Gasification Combined Cycle (IGCC) power generation systems. The Optional Task (Phase M, Task 5) objective is to fabricate, inspect and ship to Wilsonville Hot gas particulate filters are key components for the successful commercializaion of advanced coal-based power-generation systems such as Pressurized Fluidized-bed Combustion (PFBC), including second-generation PFBC, and Integrated Gasification Combined Cycles (IGCC). Current generation monolithic ceramic filters are subject to catastrophic failure because they have very low resistance to crack propagation. To overcome this problem, a damage-tolerant ceramic filter element is needed.

Lane, J.E.; Painter, C.J.; Radford, K.C. LeCostaouec, J.F.

1995-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Detecting Human Movement by Differential Air Pressure Sensing  

E-Print Network [OSTI]

Abstract. We have developed an approach for whole-house gross movement and room transition detection through sensing at only one point in the home. We consider this system to be one member of an important new class of human activity monitoring approaches based on what we call infrastructure mediated sensing, or "home bus snooping. " Our solution leverages the existing ductwork infrastructure of central heating, ventilation, and air conditioning (HVAC) systems found in many homes. Disruptions in airflow, caused by human interroom movement, result in static pressure changes in the HVAC air handler unit. This is particularly apparent for room-to-room transitions and door open/close events involving full or partial blockage of doorways and thresholds. We detect and record this pressure variation from sensors mounted on the air filter and classify where certain movement events are occurring in the house, such as an adult walking through a particular doorway or the opening and closing of a particular door. In contrast to more complex distributed sensing approaches for motion detection in the home, our method requires the installation of only a single sensing unit (i.e., an instrumented air filter) connected to an embedded or personal computer that performs the classification function. Preliminary results show we can classify unique transition events with up to 75-80 % accuracy. 1

Shwetak N. Patel; Matthew S. Reynolds; Gregory D. Abowd

2008-01-01T23:59:59.000Z

362

BachelorofArts NativeAmericanStudies  

E-Print Network [OSTI]

.0 credit hours) with a grade point average of at least 2.00. Major Requirements (13 courses) _____ Native Indian Art History and Theory ___ Native American Studies 2350 - North American Indian Art Studio American Studies 2000 - Native American Philosophy ___ Native American Studies 2500 - Canadian Indian

Morris, Joy

363

Air ejector augmented compressed air energy storage system  

DOE Patents [OSTI]

Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air pressure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

1980-01-01T23:59:59.000Z

364

Abatement of Air Pollution: Prohibition of Air Pollution (Connecticut)  

Broader source: Energy.gov [DOE]

All air pollution not otherwise covered by these regulations is prohibited. Stationary sources which cause air pollution must be operated in accordance with all applicable emissions standards and...

365

Scale-invariant filtering design and analysis for edge detection  

Science Journals Connector (OSTI)

...integral filter|scale-space smoothing|two-dimensional filtering...behaviour known as scale-space smoothing causing edges to deform...scale) of the filter. This smoothing effect distorts the original...ramps. Infinite symmetric exponential filter is also proposed by...

2011-01-01T23:59:59.000Z

366

Air Pollution and Health Effects  

Science Journals Connector (OSTI)

The quality of the air we breathe is still a major concern to human health. Notwithstanding the air pollution mitigation efforts that have been pursued since ... be attributed to the effects of urban outdoor air

Ana Isabel Miranda; Joana Valente…

2014-01-01T23:59:59.000Z

367

Air Quality (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

Nova Scotia Environment is responsible for monitoring the air quality in the province, as well as administering fines and permits relating to air quality. The Air Quality Regulations state...

368

Global air quality and climate  

E-Print Network [OSTI]

CRITICAL REVIEW Global air quality and climatewz Arlene M.determine regional air quality and can alter climate.to-continental scale air quality. Reducing the O 3 precursor

2012-01-01T23:59:59.000Z

369

Air heating system  

DOE Patents [OSTI]

A self-starting, fuel-fired, air heating system including a vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with the provision of heat exchanger and circuitry for cooling the condensed fluid output from the pump prior to its return to the vapor generator.

Primeau, John J. (19800 Seminole Rd., Euclid, OH 44117)

1983-03-01T23:59:59.000Z

370

Method of and apparatus for testing the integrity of filters  

DOE Patents [OSTI]

A method of and apparatus are disclosed for testing the integrity of individual filters or filter stages of a multistage filtering system including a diffuser permanently mounted upstream and/or downstream of the filter stage to be tested for generating pressure differentials to create sufficient turbulence for uniformly dispersing trace agent particles within the airstream upstream and downstream of such filter stage. Samples of the particle concentration are taken upstream and downstream of the filter stage for comparison to determine the extent of particle leakage past the filter stage. 5 figs.

Herman, R.L.

1985-05-07T23:59:59.000Z

371

S-shaped magnetic macroparticle filter for cathodic arc deposition  

SciTech Connect (OSTI)

A new magnetic macroparticle filter design consisting of two 90{sup o} filters forming an S-shape is described. Transport properties of this S-filter are investigated using Langmuir and deposition probes. It is shown that filter efficiency is product of the efficiencies of two 90{sup o} filters and the deposition rate is still acceptably high to perform thin film deposition. Films of amorphous hard carbon have been deposited using a 90{sup o} filter and the S-filter, and macroparticle content of the films are compared.

Anders, S.; Anders, A.; Dickinson, M.R.; MacGill, R.A.; Brown, I.G.

1996-04-01T23:59:59.000Z

372

Indoor Air Quality Plan Page 1 of 5 Environmental Health and Safety Original: December 15, 2007  

E-Print Network [OSTI]

are in place for heating, ventilation and air conditioning systems (HVAC) systems in this workplace. Damaged) the following is completed on every unit: a) Filters are changed. b) System is checked for proper operation. c and cleaned as needed. Most campus HVAC equipment, other than individual residence hall rooms, is remotely

Rainforth, Emma C.

373

Maintaining System Air Quality | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Maintaining System Air Quality Maintaining System Air Quality This tip sheet discusses how to maintain air quality in compressed air systems through proper use of equipment....

374

Compressed Air Systems | Department of Energy  

Energy Savers [EERE]

Maintenance Strategies for Compressed Air Systems Remove Condensate with Minimal Air Loss Stabilizing System Pressure Compressed Air Training Compressed Air Systems Tools...

375

Compressed Air Storage Strategies | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Storage Strategies Compressed Air Storage Strategies This tip sheet briefly discusses compressed air storage strategies. COMPRESSED AIR TIP SHEET 9 Compressed Air Storage...

376

Young Americans | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Young Americans Young Americans Young Americans Competitions 2013 EcoCar2 Challenge Primary Ed DOE 2013 National Science Bowl Primary Ed DOE Challenge Home Student Design University EERE 2013 National Clean Energy Business Plan University EERE 2013 Solar Decathlon University EERE/DOE 2013 National Collegiate Wind University DOE Better Buildings University DOE Energy Challenge University DOE Georgetown University Energy Prize University Georgetown Univ. P3: People, Prosperitym and the Planet University EPA National Clean Energy Business Plan University DOE National Geothermal Student University ORISE Hydrogen and Fuel Cell Competitions University NREL H2U Student Contest University HEF American Solar Challenge University ASC

377

New American Home 2009 (Brochure)  

SciTech Connect (OSTI)

This brochure details the New American Home 2009, which demonstrates the use of innovative building materials, cutting-edge design, and the latest construction techniques.

Not Available

2008-12-01T23:59:59.000Z

378

Air Quality Rules (North Carolina)  

Broader source: Energy.gov [DOE]

This is a comprehensive air quality rule for North Carolina that includes ambient air quality standards, emission control standards, monitoring and reporting requirements, and permitting procedures...

379

Ambient Air Quality Standards (Iowa)  

Broader source: Energy.gov [DOE]

These regulations set statewide ambient air quality standards for various contaminants. The state code follows the regulations set forth in the National Primary and Secondary Ambient Air Quality...

380

Traffic air quality index  

Science Journals Connector (OSTI)

Abstract Vehicle emissions are responsible for a considerable share of urban air pollution concentrations. The traffic air quality index (TAQI) is proposed as a useful tool for evaluating air quality near roadways. The TAQI associates air quality with the equivalent emission from traffic sources and with street structure (roadway structure) as anthropogenic factors. The paper presents a method of determining the TAQI and defines the degrees of harmfulness of emitted pollution. It proposes a classification specifying a potential threat to human health based on the TAQI value and shows an example of calculating the TAQI value for real urban streets. It also considers the role that car traffic plays in creating a local UHI.

Zbigniew Bagie?ski

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

American Institute of Aeronautics and Astronautics Application of Pulsed Detonation Engine for Electric Power  

E-Print Network [OSTI]

American Institute of Aeronautics and Astronautics 1 Application of Pulsed Detonation Engine of testing. In subsequent tests with the PDE, detonations were observed for H2-O2 mixtures, but H2-Air mixtures failed to detonate. Nomenclature ac = alternating current atm = atmosphere C-J = Chapman

Texas at Arlington, University of

382

Ventilation Air Preconditioning Systems  

E-Print Network [OSTI]

Ventilation Air Preconditioning Systems Mukesh Khattar Michael J. Brandemuehl Manager, Space Conditioning and Refrigeration Associate Professor Customer Systems Group Joint Center for Energy Management Electric Power Research Institute Campus... costs, the small, modular nature of the system allows great flexibility for fitting into retrofit geometries and saves space in new construction. Moreover, a single chiller can serve multiple air-handling units-in stark contrast to packaged...

Khattar, M.; Brandemuehl, M. J.

1996-01-01T23:59:59.000Z

383

Synthesis of Complex Subband Hybrid Filter Banks A/D Converters using Adaptive Filters  

E-Print Network [OSTI]

Synthesis of Complex Subband Hybrid Filter Banks A/D Converters using Adaptive Filters Zhiguo Song. This synthesis method is validated for a complex subband HFB by simulation in the time-domain. I. INTRODUCTION (analysis bank), a conversion-stage (ADC bank) and a digital reconstruction (synthesis bank). With a given

Paris-Sud XI, Université de

384

DOE-HDBK-1169-2003; DOE Handbook Nuclear Air Cleaning Handbook  

Broader source: Energy.gov (indexed) [DOE]

A-1 A-1 APPENDIX A CARE AND HANDLING OF HEPA FILTERS H. Gilbert and J. H. Palmer 1 High reliance can be placed on the high-efficiency particulate air (HEPA) filter if precautions are taken in handling, storage, and installation. Inspection upon delivery, upon withdrawal from stock, and before and after installation is important. A filter unit should be inspected each time it is handled to guard against installation of a damaged item. The precautions and recommendations in this Handbook are based upon field experience and development. A.1 Packaging and Shipping Packaging practice varies among the filter unit manufacturers. Normally, units are packaged in cardboard cartons with various means of providing internal strengthening and impact resistance of the carton. A carton

385

Filter loading corrections for real-time aethalometer measurements of fresh  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Filter loading corrections for real-time aethalometer measurements of fresh Filter loading corrections for real-time aethalometer measurements of fresh diesel soot. (2007) Title Filter loading corrections for real-time aethalometer measurements of fresh diesel soot. (2007) Publication Type Journal Article Year of Publication 2007 Authors Jimenez, Jorge, Candis S. Claiborn, Timothy Larson, Thomas W. Kirchstetter, and Lara A. Gundel Journal Journal of Air and Waste Management Association Volume 57 Issue 7 Pagination 868-873 Abstract In this study, a correction was developed for the aethalometer to measure real-time black carbon (BC) concentrations in an environment dominated by fresh diesel soot. The relationship between the actual mass-specific absorption coefficient for BC and the BC-dependent attenuation coefficients was determined from experiments conducted in a diesel exposure chamber that provided constant concentrations of fine particulate matter (PM; PM(2.5); PM < 2.5 microm in aerodynamic diameter) from diesel exhaust. The aethalometer reported BC concentrations decreasing with time from 48.1 to 31.5 microg m(-3) when exposed to constant PM(2.5) concentrations of 55 +/- 1 microg m(-3) and b(scat) = 95 +/- 3 Mm(-1) from diesel exhaust. This apparent decrease in reported light-absorbing PM concentration was used to derive a correction K(ATN) for loading of strong light-absorbing particles onto or into the aethalometer filter tape, which was a function of attenuation of light at 880 nm by the embedded particles

386

Air Cooling | Open Energy Information  

Open Energy Info (EERE)

Cooling Cooling Jump to: navigation, search Dictionary.png Air Cooling: Air cooling is commonly defined as rejecting heat from an object by flowing air over the surface of the object, through means of convection. Air cooling requires that the air must be cooler than the object or surface from which it is expected to remove heat. This is due to the second law of thermodynamics, which states that heat will only move spontaneously from a hot reservoir (the heat sink) to a cold reservoir (the air). Other definitions:Wikipedia Reegle Air Cooling Air Cooling Diagram of Air Cooled Condenser designed by GEA Heat Exchangers Ltd. (http://www.gea-btt.com.cn/opencms/opencms/bttc/en/Products/Air_Cooled_Condenser.html) Air cooling is limited on ambient temperatures and typically require a

387

Central American resource studies  

SciTech Connect (OSTI)

Los Alamos National Laboratory has been working with five Central American countries to assist in the development of their energy and mineral resources. Since 1985, mineral resources in Costa Rica, peat resources in Costa Rica and Panama, geothermal energy resources in Honduras and Guatemala, and geothermal field development in El Salvador and Costa Rica have been topics of study. This paper presents an overview of this work -- within these proceedings are papers that deal with specific aspects of each topic, and these will be duly noted. 15 refs., 4 figs.

Van Eeckhout, E.; Laughlin, A.W.

1989-01-01T23:59:59.000Z

388

Central American update  

SciTech Connect (OSTI)

The Central American Energy Resources Project is designed to help the countries of Honduras, Costa Rica, El Salvador, Guatemala, and Panama develop their geothermal resources. Auxiliary project goals are to increase economic development and employment in Central America; to provide a scientific basis for the private sector to develop natural resources; and to provide scientific training to in-country scientists, engineers, and technicians. The energy resources project began in March 1985. The progress being made in El Salvador (production well logging and geophysical operations), Panama (site selection for the first temperature-gradient well), and Honduras (well drilling of temperature-gradient wells) is summarized.

Hodgson, S.F.

1987-07-01T23:59:59.000Z

389

Americans as Survivors  

Science Journals Connector (OSTI)

...and Vietnam: both are seen as unwinnable counterinsurgencies with unclear goals carried out in alien, hostile environments against enemies who are invisible and highly dangerous. A small but growing group of veterans of Iraq who embrace these alternative meanings have modeled themselves on the antiwar... Physicians have always been concerned with how people survive trauma, writes Dr. Robert Jay Lifton. Less noted has been the experience of Americans as survivors of violent collective trauma. However, responses can be both painful and a potential source of ...

Lifton R.J.

2005-06-02T23:59:59.000Z

390

AIR SEALING Seal air leaks and save energy!  

E-Print Network [OSTI]

AIR SEALING Seal air leaks and save energy! W H A T I S A I R L E A K A G E ? Ventilation is fresh at stopping air leakage. It is critical to seal all holes and seams between these sheet goods with durable air that enters a house in a controlled manner to exhaust excess moisture and reduce odors

Oak Ridge National Laboratory

391

inAir: Sharing Indoor Air Quality Measurements and Visualizations  

E-Print Network [OSTI]

evidence has indicated that indoor air pollution within homes and other buildings can be worse than the outdoor air pollution in even the largest and most industrialized cities. For example, the California Air Resources Board estimates that indoor air pollutant levels are 25-62% greater than outside levels [4

Mankoff, Jennifer

392

Air Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference  

E-Print Network [OSTI]

permit regulations are designed to track, record, and control air pollutants belonging to severalAir Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference Department: Chemical on chemical classifications. This reference outlines major categories of air pollutants found at SLAC

Wechsler, Risa H.

393

American Electric Vehicles Inc | Open Energy Information  

Open Energy Info (EERE)

Inc Jump to: navigation, search Name: American Electric Vehicles Inc Place: Palmer Lake, Colorado Zip: 80133 Sector: Vehicles Product: American Electric Vehicles (AEV) builds high...

394

American Battery Charging Inc | Open Energy Information  

Open Energy Info (EERE)

American Battery Charging Inc Place: Smithfield, Rhode Island Zip: 2917 Product: Manufacturer of industrial and railroad battery chargers. References: American Battery Charging...

395

American Way Solar AWS | Open Energy Information  

Open Energy Info (EERE)

navigation, search Name: American Way Solar (AWS) Place: Plzen, Czech Republic Sector: Solar Product: Czech subsidiary of US PV panel manufacturer, American Way Solar (AWS)....

396

PERFORMANCE EVALUATION OF AN AIR-TO-AIR HEAT PUMP COUPLED WITH TEMPERATE AIR-SOURCES INTEGRATED INTO A DWELLING  

E-Print Network [OSTI]

PERFORMANCE EVALUATION OF AN AIR-TO-AIR HEAT PUMP COUPLED WITH TEMPERATE AIR-SOURCES INTEGRATED.peuportier@mines-paristech.fr, Tel.: +33 1 40 51 91 51 ABSTRACT An inverter-driven air-to-air heat pump model has been developped capacity air-to-air heat pump coupled with temperate air sources (crawlspace, attic, sunspace, heat

Paris-Sud XI, Université de

397

Hot gas filter and system assembly  

DOE Patents [OSTI]

A filter element for separating fine dirty particles from a hot gas. The filter element comprises a first porous wall and a second porous wall. Each porous wall has an outer surface and an inner surface. The first and second porous walls being coupled together thereby forming a substantially closed figure and open at one end. The open end is formed to be coupled to a hot gas clean up system support structure. The first and second porous walls define a channel beginning at the open end and terminate at the closed end through which a filtered clean gas can flow through and out into the clean gas side of a hot gas clean up system.

Lippert, Thomas Edwin (Murrysville, PA); Palmer, Kathryn Miles (Monroeville, PA); Bruck, Gerald Joseph (Murrysville, PA); Alvin, Mary Anne (Pittsburgh, PA); Smeltzer, Eugene E. (Export, PA); Bachovchin, Dennis Michael (Murrysville, PA)

1999-01-01T23:59:59.000Z

398

2011 NNSS Review of DAF-JCO Inoperable HEPA Filtered Vent. System  

Broader source: Energy.gov (indexed) [DOE]

NNSS-2011-07-08 NNSS-2011-07-08 Site: Nevada National Security Site Subject: Office of Enforcement and Oversight's Office of Safety and Emergency Management Evaluations Activity Report for the Review of DAF-JCO-11-01 for Inoperable HEPA-Filtered Ventilation System Dates of Activity : 06/06/2011 - 07/08/2011 Report Preparer: William Macon Activity Description/Purpose: As an operational awareness activity, the Office of Health, Safety and Security (HSS) site lead reviewed a recent Justification for Continued Operations (JCO) for the Inoperable High Efficiency Particulate Air (HEPA)-Filtered Ventilation System at the Device Assembly Facility (DAF) at the Nevada National Security Site (NNSS). DAF- JCO-11-01, Revision 2, was prepared by the contractor, National Security Technologies, LLC (NSTec), on May

399

Experimental noise filtering by quantum control  

E-Print Network [OSTI]

Instabilities due to extrinsic interference are routinely faced in systems engineering, and a common solution is to rely on a broad class of $\\textit{filtering}$ techniques in order to afford stability to intrinsically unstable systems. For instance, electronic systems are frequently designed to incorporate electrical filters composed of, $\\textit{e.g.}$ RLC components, in order to suppress the effects of out-of-band fluctuations that interfere with desired performance. Quantum coherent systems are now moving to a level of complexity where challenges associated with realistic time-dependent noise are coming to the fore. Unfortunately, standard control solutions involving feedback are generally impossible due to the strictures of quantum mechanics, and existing error-suppressing gate constructions generally rely on unphysical bang-bang controls or quasi-static error models that do not reflect realistic laboratory environments. In this work we use the theory of quantum control engineering and experiments with trapped $^{171}$Yb$^{+}$ ions to demonstrate the construction of novel $\\textit{noise filters}$ which are specifically designed to mitigate the effect of realistic time-dependent fluctuations on qubits \\emph{during useful operations}. Starting with desired filter characteristics and the Walsh basis functions, we use a combination of analytic design rules and numeric search to construct time-domain noise filters tailored to a desired state transformation. Our results validate the generalized filter-transfer function framework for arbitrary quantum control operations, and demonstrate that it can be leveraged as an effective and efficient tool for developing novel robust control protocols.

A. Soare; H. Ball; D. Hayes; J. Sastrawan; M. C. Jarratt; J. J. McLoughlin; X. Zhen; T. J. Green; M. J. Biercuk

2014-04-03T23:59:59.000Z

400

EMISSIONS TO AIR OPERATIONAL PROCEDURE  

E-Print Network [OSTI]

EMISSIONS TO AIR OPERATIONAL PROCEDURE Swansea University Estates Services Singleton Park Swansea to Air Department: Estates and Facilities Site: All Author: Ambreen Jahangir Approved by: Mark Durdin PURPOSE: To minimise emissions and discharges to air from boilers, fume cupboards, air conditioning

Harman, Neal.A.

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Air Quality | Open Energy Information  

Open Energy Info (EERE)

Retrieved from "http:en.openei.orgwindex.php?titleAirQuality&oldid612070" Category: NEPA Resources...

402

A Comparative Study for the Air Distribution System of a Cleanroom with  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Comparative Study for the Air Distribution System of a Cleanroom with A Comparative Study for the Air Distribution System of a Cleanroom with High Cooling Load and Airborne Molecular Sources Speaker(s): Shih-Cheng Hu Date: June 20, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Tim Xu With rapid change of production line in Taiwan IT Industries; increased productivity/flexibility in the same cleanroom space is required urgently. We have systematically compared two cleanroom ventilation systems i.e. conventional and ceiling return system. The wall return system has fixed location of Fan filter unit (FFU), return air shaft/wall and dry coiling coil. The ceiling return system with a specially designed Fan Filter Dry Coil Unit (FFDCU) installed just above a production tool with high heat/particle sources. For a wall return system, reduced flexibility and

403

Electrically heated particulate filter using catalyst striping  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating is applied to the PF that increases a temperature of the combustion of the particulates within the PF.

Gonze, Eugene V; Paratore, Jr., Michael J; Ament, Frank

2013-07-16T23:59:59.000Z

404

Electrically heated particulate filter with reduced stress  

DOE Patents [OSTI]

A system comprises a particulate matter (PM) filter comprising an inlet for receiving exhaust gas. A zoned heater is arranged in the inlet and comprises a resistive heater comprising N zones, where N is an integer greater than one. Each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates others of the N zones.

Gonze, Eugene V.

2013-03-05T23:59:59.000Z

405

Multichannel image regularization using anisotropic geodesic filtering  

SciTech Connect (OSTI)

This paper extends a recent image-dependent regularization approach introduced in aiming at edge-preserving smoothing. For that purpose, geodesic distances equipped with a Riemannian metric need to be estimated in local neighbourhoods. By deriving an appropriate metric from the gradient structure tensor, the associated geodesic paths are constrained to follow salient features in images. Following, we design a generalized anisotropic geodesic filter; incorporating not only a measure of the edge strength, like in the original method, but also further directional information about the image structures. The proposed filter is particularly efficient at smoothing heterogeneous areas while preserving relevant structures in multichannel images.

Grazzini, Jacopo A [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

406

Evaluation of a Combined Ultraviolet Photocatalytic Oxidation(UVPCO)/Chemisorbent Air Cleaner for Indoor Air Applications  

SciTech Connect (OSTI)

We previously reported that gas-phase byproducts of incomplete oxidation were generated when a prototype ultraviolet photocatalytic oxidation (UVPCO) air cleaner was operated in the laboratory with indoor-relevant mixtures of VOCs at realistic concentrations. Under these conditions, there was net production of formaldehyde and acetaldehyde, two important indoor air toxicants. Here, we further explore the issue of byproduct generation. Using the same UVPCO air cleaner, we conducted experiments to identify common VOCs that lead to the production of formaldehyde and acetaldehyde and to quantify their production rates. We sought to reduce the production of formaldehyde and acetaldehyde to acceptable levels by employing different chemisorbent scrubbers downstream of the UVPCO device. Additionally, we made preliminary measurements to estimate the capacity and expected lifetime of the chemisorbent media. For most experiments, the system was operated at 680-780 m{sup 3}/h (400-460 cfm). A set of experiments was conducted with common VOCs introduced into the UVPCO device individually and in mixture. Compound conversion efficiencies and the production of formaldehyde and acetaldehyde were determined by comparison of compound concentrations upstream and downstream of the reactor. There was general agreement between compound conversions efficiencies determined individually and in the mixture. This suggests that competition among compounds for active sites on the photocatalyst surface will not limit the performance of the UVPCO device when the total VOC concentration is low. A possible exception was the very volatile alcohols, for which there were some indications of competitive adsorption. The results also showed that formaldehyde was produced from many commonly encountered VOCs, while acetaldehyde was generated by specific VOCs, particularly ethanol. The implication is that formaldehyde concentrations are likely to increase when an effective UVPCO air cleaner is used in buildings containing typical VOC sources. The magnitude of the expected increase will depend upon a number of interrelated factors. Series of experiments were conducted to determine if the oxidizer, sodium permanganate (NaMnO{sub 4}{center_dot}H{sub 2}O), has sufficient reaction rates and capacity to counteract formaldehyde and acetaldehyde production and enable a 50 % reduction in building ventilation rate without net increases in indoor aldehyde concentrations. A commercially produced filter element and two laboratory-fabricated media beds containing NaMnO{sub 4}{center_dot}H{sub 2}O chemisorbent media were evaluated. The effectiveness of a device for removal of formaldehyde, acetaldehyde and other VOCs was determined by measurement of concentrations immediately upstream and downstream of the device. In some experiments, conversion efficiencies and byproduct generation by the UVPCO device also were determined. Six experiments were conducted with the commercial filter element installed downstream of the UVPCO reactor. Eleven experiments were conducted with a single panel media bed (30 cm by 61 cm by 2.5 cm deep) installed downstream of the UVPCO reactor; in these, the effects of temperature and air residence time on conversion efficiency were examined. Two experiments were conducted with a four-panel, folded, media bed (approximately four times the size of the single panel bed) installed downstream of the reactor. Because the commercial unit contained activated carbon as an additional component, it was effective at removing lower volatility compounds that typically have low oxidation rates in the UVPCO reactor. The filter element also met the minimum efficiency objective for formaldehyde. However, the removal of acetaldehyde was less than required. The air residence time in the single panel bed was not optimized as the removal efficiencies for both formaldehyde and acetaldehyde were strongly inversely related to the air flow rate through the device. In addition, the acetaldehyde removal efficiency decreased to less than 10% with extended use of the device. The fold

Hodgson, Alfred T.; Destaillats, Hugo; Hotchi, Toshifumi; Fisk,William J.

2007-02-01T23:59:59.000Z

407

Compressed air energy storage system  

DOE Patents [OSTI]

An internal combustion reciprocating engine is operable as a compressor during slack demand periods utilizing excess power from a power grid to charge air into an air storage reservoir and as an expander during peak demand periods to feed power into the power grid utilizing air obtained from the air storage reservoir together with combustible fuel. Preferably the internal combustion reciprocating engine is operated at high pressure and a low pressure turbine and compressor are also employed for air compression and power generation.

Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

1981-01-01T23:59:59.000Z

408

Air Charter Services  

Broader source: Energy.gov (indexed) [DOE]

42.2 (April 2012) 42.2 (April 2012) 1 Documentation and Approval of Federally Funded International Travel (Fly America Act-Open Skies Agreement) Overview This section provides guidance to DOE Contracting Officers, Contracting Officer Representatives, and Program Officials on documentation and approval of federally funded international travel by Federal contractors and subcontractors in accordance with FAR 52.247-63 PREFERENCE FOR U.S.-FLAG AIR CARRIERS (JUNE 2003), 49 U.S.C. §40118 (Fly America Act) and the Open Skies Agreements as amended. Background Contracts that include FAR clause 52.247-63, PREFERENCE FOR U.S.-FLAG AIR CARRIERS (JUNE 2003) as prescribed in FAR 47.405 require that, if available, the Contractor (and subcontractors), in performing work under the contract, shall use U.S.-flag air carriers for

409

air_water.cdr  

Office of Legacy Management (LM)

12/2011 12/2011 Air Monitoring Groundwater Monitoring Surface Water Monitoring A continuously operating air monitoring network was in place from 1986 through 2000 for the Weldon Spring Site Remedial Action Project (WSSRAP) to measure levels of gamma radiation, radioactive dust particles, radon gas, and asbestos. With remediation of contaminated materials essentially complete and measurements indistinguishable from background, the U.S. Department of Energy (DOE) ceased perimeter and offsite air monitoring as of December 31, 2000. Groundwater has been routinely monitored at the site since 1986. Separate groundwater monitoring programs were established for the Chemical Plant and Quarry sites because of geographic separation and differences in the hydrogeologic features that influence

410

"American manufacturers are a cornerstone of the American economy and embody the best in American values. They enhance U.S. competitiveness  

E-Print Network [OSTI]

"American manufacturers are a cornerstone of the American economy and embody the best in American...................................................................... 27 Phase Four: Testing and Refinement ........................................................ 27

411

AIR, CLIMATE, AND ENERGY RESEARCH Background The Clean Air Act has  

E-Print Network [OSTI]

resulted in one of the most effective public health programs in American history by providing the legislation to address air quality in the United States. The legislation has led to millions of lives saved and improved health. Research at the U.S. Environmental Protection Agency has played a significant role in these health achievements. The work by EPA scientists, engineers and partners demonstrated that exposure to air pollution damages our health, causing lung and heart disease, impacts our immune, nervous and reproductive systems, and shortens our lives. Their work has linked air pollution to disease and other health problems, contributed to important risk assessments, provided new technology and scientific tools and offered new solutions to protect and manage air quality. New Challenges Despite this progress, challenges remain and new concerns have emerged. Millions of people still live in counties that do not meet air quality standards for one or more pollutants. Research has uncovered many health threats from air pollution. EPA research continues to address these threats and understand their impact on those living in highly polluted areas, other vulnerable groups and vulnerable ecosystems. Climate change represents a major challenge to the protection of human health and the environment. EPA’s research is focused on understanding the environmental impacts of climate change and how to respond to the changes and impacts with sustainable solutions. Responding to climate change also includes reducing emissions of greenhouse gases. EPA’s research in this area is focused on the environmental impacts–both positive and negative–of possible greenhouse gas reduction approaches. The energy choices we make as a society clearly influence air quality and climate change. But how do we make energy decisions that have the least negative impact and greatest benefit? Research is under way to understand the impacts of air quality as alternative energy sources emerge. The atmosphere itself has become more complex. In the past, research has focused on the health impacts of single pollutants such as ozone or particulate matter. Yet we live in a world of multiple pollutants that interact and even create new chemicals.

unknown authors

412

Autoassociative neural networks and noise filtering  

Science Journals Connector (OSTI)

We introduce linear autoassociative neural (AN) network filters for the removal of additive noise from one-dimensional (1-D) time series. The AN network will have a (2M+1)×L×(2M+1) architecture, and for M fixed, we show how to choose ...

J.R. Dorronsoro; V. Lopez; C.S. Cruz; J.A. Siguenza

2003-05-01T23:59:59.000Z

413

Modeling Multi Output Filtering Effects in PCMOS  

E-Print Network [OSTI]

Modeling Multi Output Filtering Effects in PCMOS Anshul Singh*, Arindam Basu, Keck-Voon Ling, Nanyang Technological University (NTU), Singapore *NTU-Rice Institute of Sustainable and Applied Infodynamics (ISAID), NTU, Singapore $School of Computer Engineering, NTU, Singapore §School of ECE, Georgia

Mooney, Vincent

414

Evaluation and Conversation in Collaborative Filtering  

E-Print Network [OSTI]

laid down by the university. Rachael Rafter October 2010 ii #12;For My Parents, Helen and Maurice iii collaborative filtering, I find myself suddenly lost for words when I try to express what these people mean, albeit the academic one. And to my parents, Maurice and Helen.....what can I say....there are no words

Hammerton, James

415

Document Filtering With Inference Networks Jamie Callan  

E-Print Network [OSTI]

Document Filtering With Inference Networks Jamie Callan Computer Science Department University document ltering. The prob- lems of document retrieval and document ltering are sim- ilar at an abstract- mation available, are all di erent. This paper describes a new statistical document ltering system called

Callan, Jamie

416

NISTIR 7516 Forensic Filtering of Cell  

E-Print Network [OSTI]

NISTIR 7516 Forensic Filtering of Cell Phone Protocols AurélienDelaitre WayneJansen #12;ii Forensic of Standards and Technology Interagency Report 42 pages (2008) iii #12;Abstract Phone managers are non-forensic managers are sometimes used by forensic investigators to recover data from a cell phone when no suitable

417

E-Print Network 3.0 - adaptive information filtering Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

information filtering Page: << < 1 2 3 4 5 > >> 1 Applications of the Fourier Transform in Imaging Highpass and Lowpass Filters Summary: filters. The following was prelimi-...

418

Investigation of IAQ-Relevant Surface Chemistry and Emissions on HVAC Filter Materials  

E-Print Network [OSTI]

VOCs emitted by reactions of HVAC filters with ozone usingand Emissions on HVAC Filter Materials Hugo Destaillats andChemistry and Emissions on HVAC Filter Materials Authors:

Destaillats, Hugo

2010-01-01T23:59:59.000Z

419

Chemical filters by non-thermal atmospheric pressure plasmas for reactive fields  

Science Journals Connector (OSTI)

Non-thermal plasmas in electrode configurations are designed in this study and investigated at atmospheric pressure for generation of reactive fields. A combination of insulated wire electrodes and bare metal wire electrodes makes it possible to obtain a filter-like assembly of microplasmas, even in ambient air or in aqueous solutions. Oxidation and reduction fields are obtained by controlling the gas supply of hydrogen, oxygen, and water vapor, and these fields benefit various functional processes such as recycling CO2, decomposing organic molecules, and increasing the work function on metal surfaces.

Osamu Sakai; Tadasuke Morita; Yoshihiko Ueda; Noriaki Sano; Kunihide Tachibana

2011-01-01T23:59:59.000Z

420

BachelorofArts NativeAmericanStudies  

E-Print Network [OSTI]

.0 credit hours) with a grade point average of at least 2.00. Major Requirements (13 courses) _____ Native - North American Indian Art History and Theory _____ Native American Studies 2350 - North American Indian Indian History _____ Native American Studies 2550 - U.S. Indian History One of (Law and Politics

Seldin, Jonathan P.

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

The influence of salt aerosol on alpha radiation detection by WIPP continuous air monitors  

SciTech Connect (OSTI)

Alpha continuous air monitors (CAMs) will be used at the Waste Isolation Pilot Plant (WIPP) to measure airborne transuranic radioactivity that might be present in air exhaust or in work-place areas. WIPP CAMs are important to health and safety because they are used to alert workers to airborne radioactivity, to actuate air-effluent filtration systems, and to detect airborne radioactivity so that the radioactivity can be confined in a limited area. In 1993, the Environmental Evaluation Group (EEG) reported that CAM operational performance was affected by salt aerosol, and subsequently, the WIPP CAM design and usage were modified. In this report, operational data and current theories on aerosol collection were reviewed to determine CAM quantitative performance limitations. Since 1993, the overall CAM performance appears to have improved, but anomalous alpha spectra are present when sampling-filter salt deposits are at normal to high levels. This report shows that sampling-filter salt deposits directly affect radon-thoron daughter alpha spectra and overall monitor efficiency. Previously it was assumed that aerosol was mechanically collected on the surface of CAM sampling filters, but this review suggests that electrostatic and other particle collection mechanisms are more important than previously thought. The mechanism of sampling-filter particle collection is critical to measurement of acute releases of radioactivity. 41 refs.

Bartlett, W.T.; Walker, B.A.

1996-01-01T23:59:59.000Z

422

Sticking with air  

SciTech Connect (OSTI)

A decision to replace more than 300 aging damper actuators at Independence Plant in Newark, Arkensas forced Entergy to make a choice between pneumatic and electric actuator designs. The dampers route air flow through separate dedicated compartments to ensure proper firing of pulverised coal. The reasons that pneumatics was chosen are discussed in this article. 4 figs.

Coker, S.N. [Entergy (US). Independence Plant

2005-06-01T23:59:59.000Z

423

The air plasma spraying  

Science Journals Connector (OSTI)

The air plasma spraying is characterized by using of a compressed air as a plasma forming gas. Here is shown the application of benefits of the present technology compared with other spraying process. The creation of the present process was possible due to a reliable plasma torch and certain condition of heating and deposition of powder materials on a work. Plasma torch develops a power up to 50 kW and can work during 14 hours without replacement of a cathode and during 25 hours as for an anode what is acceptable for industrial application. When spraying of coatings a minimum waste of alloying elements is attained with slight increase of oxygen in coating which is comparable with argon plasma spraying in the open. In certain cases the air plasma spraying allows to obtain more perfect coatings and at high performance. The present method finds large application at restoration and strengthening of machine parts, at forming of components etc. The air plasma spraying provides high quality coatings at low cost of components.

Valery S. Klubnikin

1993-01-01T23:59:59.000Z

424

Canned Air in China  

E-Print Network [OSTI]

Broadcast Transcript: Not that long ago, coal smoke made the air here in Beijing so caustic that your nasal passages were seared with each breath. Those were the good old days: Car ownership was limited to government officials and the rest...

Hacker, Randi

2013-10-23T23:59:59.000Z

425

Wavelets and multirate filter banks : theory, structure, design, and applications  

E-Print Network [OSTI]

Wavelets and filter banks have revolutionized signal processing with their ability to process data at multiple temporal and spatial resolutions. Fundamentally, continuous-time wavelets are governed by discrete-time filter ...

Chen, Ying-Jui, 1972-

2004-01-01T23:59:59.000Z

426

Tracking moving radar targets with parallel, velocity-tuned filters  

DOE Patents [OSTI]

Radar data associated with radar illumination of a movable target is processed to monitor motion of the target. A plurality of filter operations are performed in parallel on the radar data so that each filter operation produces target image information. The filter operations are defined to have respectively corresponding velocity ranges that differ from one another. The target image information produced by one of the filter operations represents the target more accurately than the target image information produced by the remainder of the filter operations when a current velocity of the target is within the velocity range associated with the one filter operation. In response to the current velocity of the target being within the velocity range associated with the one filter operation, motion of the target is tracked based on the target image information produced by the one filter operation.

Bickel, Douglas L.; Harmony, David W.; Bielek, Timothy P.; Hollowell, Jeff A.; Murray, Margaret S.; Martinez, Ana

2013-04-30T23:59:59.000Z

427

Tunable, oblique incidence resonant grating filter for telecommunications  

Science Journals Connector (OSTI)

We have designed a tunable, oblique-incidence resonant grating filter that covers the C band as an add-drop device for incident TE-polarized light. We tune the filter by tilting a...

Niederer, Guido; Herzig, Hans Peter; Shamir, Joseph; Thiele, Hans; Schnieper, Marc; Zschokke, Christian

2004-01-01T23:59:59.000Z

428

Design of reflective phase compensator filters for telecommunications  

Science Journals Connector (OSTI)

Reflective phase compensator (RPC) filters provide a solution to the phase-dispersion problem of narrow bandpass (NBP) filters when the data rate is 40 Gbits/s or greater. By use of an...

Noe, Tony D

2002-01-01T23:59:59.000Z

429

Novel rf mems tunable filters with adjustable spurious suppression  

E-Print Network [OSTI]

This thesis presents the theory and design of fixed and Radio Frequency (RF) Microelectromechanical Systems (MEMS) -based tunable microwave filters for RF and microwave applications. The methodology for the design of coupled resonator filters...

Sekar, Vikram

2009-05-15T23:59:59.000Z

430

Effects of dilution conditions on diesel particle size distribution and filter mass measurements in case of marine fuels  

Science Journals Connector (OSTI)

Abstract Particle emission characteristics were studied from heavy-duty diesel engine operating on fuels with sulfur levels relevant to marine operation, i.e. 0.05% S and 3% S respectively. Effects of primary dilution temperature (PDT) and primary dilution ratio (PDR) were investigated together with effect of filter media and time of filter conditioning. PDT increase was found slowing down nucleation rate due to increase of saturation vapor pressures of volatile species. In turn, increasing PDR reduces partial pressure of exhaust species and hence weakens both homogeneous and heterogeneous nucleation. All these effects are amplified by high sulfur content in marine fuels which increases available amount of nucleation-prone vapor-phase semivolatile compounds. At the same time, water condensation artifact was observed at PDR = 3. No filter type was found to be overwhelmingly superior as certain positive and/or negative measurement artifacts are inherently associated with all filter materials. The filter conditioning time was also found to cause substantial PM mass variation, as control over VOC take up from (or lost to) laboratory air and hydration of sulfuric acid is required. The standard 24 hour conditioning time was found insufficient to reach complete PM mass equilibrium, so longer time is required when measuring from high-sulfur fuels.

Sergey Ushakov; Harald Valland; Jørgen B. Nielsen; Erik Hennie

2014-01-01T23:59:59.000Z

431

Latin American Theatre Review, Volume 10, Number 2: Front Matter  

E-Print Network [OSTI]

10/2 LATIN AMERICAN THEATRE REVIEW SPRING 1977 Contents Kindergarten, A New Play by Egon Wolff Margaret Sayers Peden 5 El teatro en Buenos Aires en la época de la emancipación (1810-1820) Oscar F. Urquiza Almandoz 11 Existential Irony... in Three Carballido Plays Karen Peterson 29 La función de la imaginación en las Coronas de Rodolfo Usigli Roberto R. Rodríguez 37 Chicano Agit-Prop: The Early Actos of El Teatro Campesino Jorge A. Huerta 45 Lima: Entropy (Wolfgang Luchting) 59 Tirano...

Editors

1977-04-01T23:59:59.000Z

432

E-Print Network 3.0 - american ophthalmolgical society Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: of Graphic Arts American Psychological Association American Research Center in Egypt American Society... of Mammalogists American Society of Media Photographers American...

433

E-Print Network 3.0 - association american society Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: of Graphic Arts American Psychological Association American Research Center in Egypt American Society... of Mammalogists American Society of Media Photographers American...

434

E-Print Network 3.0 - african-american men major Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

search. American Indian Asian Asian American Black African American Chicano Latino Hispanic White... to interview. American Indian Asian Asian American Black African...

435

Preparation of Metal Filter Element for Fail Safety in IGCC Filter Unit  

SciTech Connect (OSTI)

Metal filter elements as the fail safety filter are fabricated by the methods using cold isostatic pressure (compress method) and binder (binder method) to form the filter element and tested in a experimental and bench units. The fail safety filter on the filtration system is mounted additionally in order to intercept the particle leak when the main filter element is broken. So it should have two contrary functions of a high permeability and being plugged easily. The filter element having high porosity and high plugging property was fabricated by the bind method. It has the porosity more than 50%, showed very small pressure drop less than 10mmH2O at the face velocity of 0.15m/s, and plugged within 5 minutes with the inhibition of the particle leak larger than 4 {micro}m. The test result of corrosion tendency in IGCC gas stream at 500 C shows SUS310L material is very reasonable among SUS310, SUS316, Inconel 600, and Hastelloy X.

Choi, J-H.; Ahn, I-S.; Bak, Y-C.; Bae, S-Y.; Ha, S-J.; Jang, H-J.

2002-09-18T23:59:59.000Z

436

Photometry Transformation from $RGB$ Bayer Filter System to Johnson-Cousins $BVR$ Filter System  

E-Print Network [OSTI]

The $RGB$ Bayer filter system consists of mosaic $R$, $G$, and $B$ filters on the grid of photo sensors which typical commercial DSLR (Digital Single Lens Reflex) cameras and CCD cameras are equipped with. Many unique astronomical data obtained using a $RGB$ Bayer filter system are available, including transient objects, e.g., supernovae, variable stars, and solar system bodies. The utilization of such data in scientific research strongly requires reliable photometry transformation methods. In this work, we develop a series of equations to convert the observed magnitudes in the $RGB$ Bayer filter system ($R_B$, $G_B$, and $B_B$) into the Johnson-Cousins $BVR$ filter system ($B_J$, $V_J$, and $R_C$). The new transformation equations derive the calculated magnitudes in Johnson-Cousins filters ($B_{Jcal}$, $V_{Jcal}$, and $R_{Ccal}$) as functions of magnitudes and colors. The mean differences between the transformed magnitudes and original magnitudes, i.e., the residuals, are $\\Delta(B_J-B_{Jcal})$ = 0.104 mag, ...

Park, Woojin; Shim, Hyunjin; Le, Huynh Anh N; Im, Myungshin; Chang, Seunghyuk; Yu, Joonkyu

2015-01-01T23:59:59.000Z

437

On-Site Wastewater Treatment Systems: Trickling Filter  

E-Print Network [OSTI]

Soil absorption field Septic tank Clarifier/Dosing tank Trickling filter On-site wastewater treatment systems Trickling filter Bruce Lesikar and Russell Persyn Extension Agricultural Engineering Specialist, Extension Assistant-Water Conservation... municipal wastewater before cities began using activated sludge aeration systems. Now, homes and businesses use trickling filters in on-site wastewater treatment systems. Each trickling filter system has several components: 3 A septic tank, which removes...

Lesikar, Bruce J.

2000-02-04T23:59:59.000Z

438

Filter:Incentives by Efficiency or Renewable | Open Energy Information  

Open Energy Info (EERE)

EnergyCat. Retrieved from "http:en.openei.orgwindex.php?titleFilter:IncentivesbyEfficiencyorRenewable&oldid26622...

439

Industrial HVAC Air-to-Air Energy Recovery Retrofit Economics  

E-Print Network [OSTI]

Retrofitting air-to-air energy recovery equipment is relatively simply to design and easy to install. Additionally, HVAC energy recovery is almost risk free when compared to process retrofit. Life cycle cost analysis is the best way to illustrate...

Graham, E. L.

1980-01-01T23:59:59.000Z

440

Compressed Air 101: Getting Compressed Air to Work  

E-Print Network [OSTI]

"Air compressors are a significant industrial energy user. Based on a survey (conducted by Oregon State University and the Bonneville Power Administration) of energy audit reports from 125 plants, air compressors account for roughly 10% of total...

Burke, J. J.; Bessey, E. G.

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Vermont Air Pollution Control Regulations, Ambient Air Quality Standards (Vermont)  

Broader source: Energy.gov [DOE]

The ambient air quality standards are based on the national ambient air quality standards. The Vermont standards are classified as primary and secondary standards and judged adequate to protect...

442

EA-1752: Pacific Gas & Electric, Compressed Air Energy Storage Compression  

Broader source: Energy.gov (indexed) [DOE]

52: Pacific Gas & Electric, Compressed Air Energy Storage 52: Pacific Gas & Electric, Compressed Air Energy Storage Compression Testing Phase and Temporary Site Facilities, Kings Island, San Joaquin County, California EA-1752: Pacific Gas & Electric, Compressed Air Energy Storage Compression Testing Phase and Temporary Site Facilities, Kings Island, San Joaquin County, California Summary DOE prepared an EA to evaluate the potential environmental impacts of providing a financial assistance grant under the American Recovery and Reinvestment Act of 2009 for the construction of an advanced compressed air energy storage plant in San Francisco, California. Public Comment Opportunities Draft EA: Comment Period Ended 12/31/13. DOE will consider late submissions to the extent practicable. Comments should be marked "PG&E Compressed Air Energy Storage Draft EA

443

American Association Meeting at Boston  

Science Journals Connector (OSTI)

... meeting of the American Association for the Advancement of Science was held at Boston on December 26–30. Several of the addresses delivered by presidents of sections have appeared in recent ...

1923-04-07T23:59:59.000Z

444

Geothermal energy for American Samoa  

SciTech Connect (OSTI)

The geothermal commercialization potential in American Samoa was investigated. With geothermal energy harnessed in American Samoa, a myriad of possibilities would arise. Existing residential and business consumers would benefit from reduced electricity costs. The tuna canneries, demanding about 76% of the island's process heat requirements, may be able to use process heat from a geothermal source. Potential new industries include health spas, aquaculture, wood products, large domestic and transhipment refrigerated warehouses, electric cars, ocean nodule processing, and a hydrogen economy. There are no territorial statutory laws of American Samoa claiming or reserving any special rights (including mineral rights) to the territorial government, or other interests adverse to a land owner, for subsurface content of real property. Technically, an investigation has revealed that American Samoa does possess a geological environment conducive to geothermal energy development. Further studies and test holes are warranted.

Not Available

1980-03-01T23:59:59.000Z

445

Electrically heated particulate filter preparation methods and systems  

DOE Patents [OSTI]

A control system that controls regeneration of a particulate filter is provided. The system generally includes a fuel control module that controls injection of fuel into exhaust that passes through the particulate filter. A regeneration module controls current to the particulate filter to initiate regeneration after the fuel has been injected into the exhaust.

Gonze, Eugene V [Pinckney, MI

2012-01-31T23:59:59.000Z

446

Measurement of MTF Target Plasma Temperature Using Filtered Silicon Photodiodes  

E-Print Network [OSTI]

Measurement of MTF Target Plasma Temperature Using Filtered Silicon Photodiodes Presented at the 40 Plasma Temperature Using Filtered Silicon Photodiodes Magnetized Target Fusion (MTF) is an approach photodiodes, and a plasma-density interferometer. The data obtained from the array of seven filtered silicon

447

Atmospheric Environment 41 (2007) 31513160 Ozone removal by HVAC filters  

E-Print Network [OSTI]

Atmospheric Environment 41 (2007) 3151­3160 Ozone removal by HVAC filters P. Zhao, J.A. Siegel�, R May 2006; accepted 14 June 2006 Abstract Residential and commercial HVAC filters that have been loaded of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial

Siegel, Jeffrey

448

Parameter Estimation Using Dual Fractional Power Filters Jason M. Kinser  

E-Print Network [OSTI]

by the user, they only have to be contained within the training set. A dual filter system will be created from an unknown input from the training set was operated on by the filter the constraint value associatedParameter Estimation Using Dual Fractional Power Filters Jason M. Kinser The Institute

Kinser, Jason M.

449

E-Print Network 3.0 - air filter biofilm Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 2 3 4 5 > >> 1 Bacterial biofilm shows persistent resistance to liquid wetting and gas penetration Summary: to selectively target particular biofilms. B. subtilis biofilms grow...

450

E-Print Network 3.0 - air filter sensor Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sensor Gateways... ... Source: Narasayya, Vivek - Data Management, Exploration and Mining Group, Microsoft Research Collection: Computer Technologies and Information Sciences 2...

451

Energy Efficient Indoor VOC Air Cleaning with Activated Carbon Fiber (ACF) Filters  

E-Print Network [OSTI]

Efficiency and Renewable Energy, Building TechnologiesEfficiency and Renewable Energy, Building Technologies

Sidheswaran, Meera

2012-01-01T23:59:59.000Z

452

Environmental Pollution Air Pollution Dispersion Practical Air Pollution Dispersion  

E-Print Network [OSTI]

Environmental Pollution Air Pollution Dispersion 1 of 5 Practical ­ Air Pollution Dispersion in the lectures how such models can be used to explain observed concentrations of air pollutants in an area and to test `what-if' scenarios for pollution control and reduction. You will use the Gaussian Plume Model

Moncrieff, John B.

453

The Ethics of American Realism: 1860-1910  

E-Print Network [OSTI]

CALIFORNIA RIVERSIDE The Ethics of American Realism: 1860-OF THE DISSERTATION The Ethics of American Realism: 1860-offered. This project, The Ethics of American Realism: 1860-

Weeks Stogner, Elissa

2010-01-01T23:59:59.000Z

454

EA-200 American Electric Power Service Corporation | Department...  

Broader source: Energy.gov (indexed) [DOE]

American Electric Power Service Corporation EA-200 American Electric Power Service Corporation Order authorizing American Electric Power Service Corporation to export electric...

455

Y-12 receives American Heart Association award | Y-12 National...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

American ... Y-12 receives American Heart Association award Posted: November 22, 2012 - 9:00am Kathy Jetton, senior regional director of the American Heart Association, presents...

456

Air Conditioning | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Conditioning Conditioning Air Conditioning July 1, 2012 - 6:28pm Addthis Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard How does it work? An air conditioner uses energy -- usually electricity -- to transfer heat from the interior of your home to the relatively warm outside environment. Two-thirds of all homes in the United States have air conditioners. Air conditioners use about 5% of all the electricity produced in the United States, at an annual cost of more than $11 billion to homeowners. As a

457

Louisiana Air Control Law (Louisiana)  

Broader source: Energy.gov [DOE]

This law states regulations for air quality control and states the powers and duties of the secretary of environmental quality. It provides information about permits and licenses, air quality...

458

Air Pollution Indicator: PM10  

Science Journals Connector (OSTI)

As one of natural elements, clean air is essential to human beings’ survival. ... , almost all economic and social activities emit air pollutants, especially such sectors as power and ... and international commun...

Hezhong Tian; Yimeng Liu

2014-01-01T23:59:59.000Z

459

Air Liquide- Biogas & Fuel Cells  

Broader source: Energy.gov [DOE]

Presentation about Air Liquide's biogas technologies and integration with fuel cells. Presented by Charlie Anderson, Air Liquide, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

460

Solar Heating and Air Conditioning  

Science Journals Connector (OSTI)

...given of the status of solar fired air conditioning...to an approach to cool storage in solar air conditioning systems...an assessment of cool storage for reducing peak electrical...rolling cylinder thermal energy storage device for compact...

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Compressed Air Audits using AIRMaster  

E-Print Network [OSTI]

Air compressors are a significant industrial energy user and therefore a prime target for industrial energy audits. The project goal was to develop a software tool, AIRMaster, and supporting methodology for performing compressed air system audits...

Wheeler, G. M.; McGill, R. D.; Bessey, E. G.; Vischer, K.

462

Fundamentals of Compressed Air Systems  

Broader source: Energy.gov [DOE]

Find out how a compressed air system works and the benefits of optimal compressed air system performance. This initial class demonstrates how to compute the current cost of your plant's compressed...

463

Roadway tunnel air quality models  

Science Journals Connector (OSTI)

Roadway tunnel air quality models ... Analysis of 13 tunnel studies quantifies the decline since 1961 in benzo[a]pyrene emitted into the air per km of travel by U.S. road vehicles. ...

Tai Y. Chang; Sara J. Rudy

1990-05-01T23:59:59.000Z

464

Analog FIR Filter Used for Range-Optimal Pulsed Radar Applications  

E-Print Network [OSTI]

of implementing the matched filter with an analog FIR filter is proposed. The FIR filter provides a linear phase response which is suitable for radar applications. Analog FIR filters can be implemented in the discrete domain, requiring operational amplifiers...

Su, Eric Chen

2014-08-13T23:59:59.000Z

465

Modern Art and Modern Movement: Images of Dance in American Art, c. 1900-1950  

E-Print Network [OSTI]

intently from her box completely captivated by the performance [Fig. 1.14] . Mary Cassatt’s Woman with a Pearl Neckla ce ( 1879 ) depicts a more sophisticated theater goer wearing a low-cut dress, gloves, and pearls, and holding a fan [Fig. 1... into the foreground of the young American’s work, only there it wears the air of a mannerism, of a derivative thing. It is impossible to consider the situation without regret. A man of such ability ought surely to be doing fresher and finer things.18...

Stephens, JoLee Gillespie

2011-04-12T23:59:59.000Z

466

Compressed Air System Control Strategies  

Broader source: Energy.gov [DOE]

This tip sheet briefly discusses compressed air system control strategies as a means to improving and maintaining system performance.

467

Compressed Air Energy Storage System  

E-Print Network [OSTI]

/expanders are crucial for the economical viability of a Compressed Air Energy Storage (CAES) system such as the

Farzad A. Shirazi; Mohsen Saadat; Bo Yan; Perry Y. Li; Terry W. Simon

468

Analyzing Your Compressed Air System  

Broader source: Energy.gov [DOE]

This tip sheet outlines the process to analyze industrial compressed air systems and ensure proper system configuration.

469

Air Leaks in Unexpected Places  

Broader source: Energy.gov [DOE]

Sealing air leaks will help to decrease heating and cooling costs and make your home more comfortable.

470

AIR QUALITY REPORT SPARKS CONTROVERSY  

Science Journals Connector (OSTI)

AIR QUALITY REPORT SPARKS CONTROVERSY ... The National Commission on Air Quality delivered its eagerly awaited report to Congress today, and reaction from industry and environmental groups is expected to be both swift and sharp. ... Created under the 1977 Clean Air Act, the commission was charged with assessing the effectiveness of the law, and recommending changes where the law falls short of achieving the goal of improving the nation's air quality. ...

1981-03-02T23:59:59.000Z

471

Air-Lift design theory  

Science Journals Connector (OSTI)

1. Employing graphical relationships between height of lift of the emulsion, depth of shaft, and specific air ra...

P. R. Khlopenkov

1970-10-01T23:59:59.000Z

472

Oil Bypass filter technology evaluation final report  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6-01355 6-01355 U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation Final Report TECHNICAL REPORT Larry Zirker James Francfort Jordan Fielding March 2006 Idaho National Laboratory Operated by Battelle Energy Alliance INL/EXT-06-01355 U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation Final Report Larry Zirker James Francfort Jordan Fielding March 2006 Idaho National Laboratory Transportation Technology Department Idaho Falls, Idaho 83415 Prepared for the U.S. Department of Energy Assistant Secretary for Energy Efficiency and Renewable Energy Under DOE Idaho Operations Office Contract DE-AC07-05ID14517

473

Quantum graph as a quantum spectral filter  

SciTech Connect (OSTI)

We study the transmission of a quantum particle along a straight input-output line to which a graph {Gamma} is attached at a point. In the point of contact we impose a singularity represented by a certain properly chosen scale-invariant coupling with a coupling parameter {alpha}. We show that the probability of transmission along the line as a function of the particle energy tends to the indicator function of the energy spectrum of {Gamma} as {alpha}{yields}{infinity}. This effect can be used for a spectral analysis of the given graph {Gamma}. Its applications include a control of a transmission along the line and spectral filtering. The result is illustrated with an example where {Gamma} is a loop exposed to a magnetic field. Two more quantum devices are designed using other special scale-invariant vertex couplings. They can serve as a band-stop filter and as a spectral separator, respectively.

Turek, Ondrej; Cheon, Taksu [Laboratory of Physics, Kochi University of Technology, Tosa Yamada, Kochi 782-8502 (Japan)] [Laboratory of Physics, Kochi University of Technology, Tosa Yamada, Kochi 782-8502 (Japan)

2013-03-15T23:59:59.000Z

474

The Viscosity of Air  

Science Journals Connector (OSTI)

The viscosity of air has been remeasured with the rotating cylinder apparatus used by Day and Bleakney. All of the constants have been redetermined, and especial attention has been given to the corrections to the simple theory. The value obtained at 22°C is ?=1.8243±0.0045 c.g.s. units. This raises the oil drop value of e to 4.796 e.s.u. It is shown in the appendix that a correction must be applied for the opening between the suspended cylinder and the guard cylinders, and also a correction must be applied for the moment of inertia of the air carried around by the cylinder when determining its moment of inertia. Neglect of these corrections has introduced some additional uncertainty into other work.

W. V. Houston

1937-10-01T23:59:59.000Z

475

FLUIDIC: Metal Air Recharged  

SciTech Connect (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-03-07T23:59:59.000Z

476

FLUIDIC: Metal Air Recharged  

ScienceCinema (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-04-02T23:59:59.000Z

477

Air Pollution & Health in Rapidly Developing Countries  

E-Print Network [OSTI]

For example, “Air Pollution and Health – Studies in theAssessment of Air Pollution and Health” is illustrative inReview: Air Pollution & Health in Rapidly Developing

Bucher, Scott

2005-01-01T23:59:59.000Z

478

California Air Resources Board | Open Energy Information  

Open Energy Info (EERE)

Air Resources Board Jump to: navigation, search Logo: California Air Resources Board Name: California Air Resources Board Place: Sacramento, California Website: http:...

479

113 air quality control station [n  

Science Journals Connector (OSTI)

envir. (Facility for measurement of air pollution; ? air quality network/system );s estación [f] de medición de la calidad del aire (? red de ev...

2010-01-01T23:59:59.000Z

480

Probing Aerogels by Multiple Quantum Filtered 131Xe NMR Spectroscopy  

Science Journals Connector (OSTI)

This is demonstrated in Figure 1 where four pulse sequences using multiple quantum filters are shown. ... Pyrex tube at 7.4 T, 1.2 MPa, and 298 K:? (a) double-quantum filtered pulse sequence, (b) magic-angle double-quantum filter which is a T2,±1 pulse sequence, (c) triple-quantum filtered sequence, and (d) triple-quantum filtered inversion recovery pulse sequence. ... 14-16 The tubes have been filled with aerogel fragments of a few millimeter diameter and were pressurized with xenon to about 6.9 MPa at 298 K to create supercritical conditions. ...

Thomas Meersmann; Michaël Deschamps; Geoffrey Bodenhausen

2001-01-13T23:59:59.000Z

Note: This page contains sample records for the topic "american air filter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Compact cyclone filter train for radiological and hazardous environments  

DOE Patents [OSTI]

A compact cyclone filter train is disclosed for the removal of hazardous and radiological particles from a gaseous fluid medium. This filter train permits a small cyclone separator to be used in a very small space envelope due to the arrangement of the filter housing adjacent to the separator with the cyclone separator and the filters mounted on a plate. The entire unit will have a hoist connection at the center of gravity so that the entire unit including the separator, the filters, and the base can be lifted and repositioned as desired. 3 figs.

Bench, T.R.

1998-04-28T23:59:59.000Z

482

Adaptive filters for detection of gravitational waves from coalescing binaries  

SciTech Connect (OSTI)

In this work we propose use of infinite impulse response adaptive line enhancer (IIR ALE) filters for detection of gravitational waves from coalescing binaries. We extend our previous work and define an adaptive matched filter structure. Filter performance is analyzed in terms of the tracking capability and determination of filter parameters. Furthermore, following the Neyman-Pearson strategy, receiver operating characteristics are derived, with closedform expressions for detection threshold, false alarm, and detection probability. Extensive tests demonstrate the effectiveness of adaptive filters both in terms of small computational cost and robustness.

Eleuteri, Antonio; Milano, Leopoldo; De Rosa, Rosario; Garufi, Fabio; Acernese, Fausto; Barone, Fabrizio; Giordano, Lara; Pardi, Silvio [Dip. di Scienze Fisiche, Universita di Napoli 'Federico II', via Cintia, I-80126 Naples (Italy) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy); Dip. di Scienze Farmaceutiche, Universita di Salerno, via Ponte Don Melillo, 84084 Fisciano (Saudi Arabia) (IT) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy); Dip. di Matematica ed Applicazioni, Universita di Napoli 'Federico II', via Cintia, I-80126 Naples (Italy) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy)

2006-06-15T23:59:59.000Z

483

Generator powered electrically heated diesel particulate filter  

DOE Patents [OSTI]

A control circuit for a vehicle powertrain includes a switch that selectivity interrupts current flow between a first terminal and a second terminal. A first power source provides power to the first terminal and a second power source provides power to the second terminal and to a heater of a heated diesel particulate filter (DPF). The switch is opened during a DPF regeneration cycle to prevent the first power source from being loaded by the heater while the heater is energized.

Gonze, Eugene V; Paratore, Jr., Michael J

2014-03-18T23:59:59.000Z

484

ORIGINAL ARTICLE Ambient Air Pollution  

E-Print Network [OSTI]

supporting an association between am- bient air pollution and cardiovascular health, much re- mains health effects of ambient air pollution in Atlanta being undertaken by this Emory investi- gative teamORIGINAL ARTICLE Ambient Air Pollution and Cardiovascular Emergency Department Visits Kristi Busico

Mulholland, James A.

485

Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) |  

Broader source: Energy.gov (indexed) [DOE]

Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) < Back Eligibility Commercial Industrial Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Program Info State Rhode Island Program Type Siting and Permitting Provider Department of Environmental Management Permits are required to construct, install, or modify any stationary source which has the potential to increase emissions of a listed toxic air contaminant by an amount greater than the minimum quantity for that contaminant. Minimum quantities are specified in Table III of these regulations. Permits will be granted based in part on the impact of the projected emissions of the stationary source on acceptable ambient levels

486

Air Risk Information Support Center  

SciTech Connect (OSTI)

The Air Risk Information Support Center (Air RISC) was initiated in early 1988 by the US Environmental Protection Agency`s (EPA) Office of Health and Environmental Assessment (OHEA) and the Office of Air Quality Planning and Standards (OAQPS) as a technology transfer effort that would focus on providing information to state and local environmental agencies and to EPA Regional Offices in the areas of health, risk, and exposure assessment for toxic air pollutants. Technical information is fostered and disseminated by Air RISCs three primary activities: (1) a {open_quotes}hotline{close_quotes}, (2) quick turn-around technical assistance projects, and (3) general technical guidance projects. 1 ref., 2 figs.

Shoaf, C.R.; Guth, D.J. [Environmental Protection Agency, Washington, DC (United States)

1990-12-31T23:59:59.000Z

487

An improved method for interpreting API filter press hydraulic conductivity test results  

SciTech Connect (OSTI)

The American Petroleum Institute (API) filter press is frequently used to measure the hydraulic conductivity of soil-bentonite backfill during the mix design process and as part of construction quality controls. However, interpretation of the test results is complicated by the fact that the seepage-induced consolidation pressure varies from zero at the top of the specimen to a maximum value at the bottom of the specimen. An analytical solution is available which relates the stress, compressibility, and hydraulic conductivity in soil consolidated by seepage forces. This paper presents the results of a laboratory investigation undertaken to support application of this theory to API hydraulic conductivity tests. When the API test results are interpreted using seepage consolidation theory, they are in good agreement with the results of consolidometer permeameter tests. Limitations of the API test are also discussed.

Heslin, G.M.; Baxter, D.Y.; Filz, G.M. [Virginia Tech, Blacksburg, VA (United States); Davidson, R.R. [Woodward-Clyde Consultants, Denver, CO (United States)

1997-12-31T23:59:59.000Z

488

Air Pollution Project: Scenario  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Scenario Scenario HELP Index Summary Scenario Internet Links Student Pages Oak Park and River Forest High School in Oak Park, IL, is a four-year (9-12) comprehensive high school with an enrollment of approximately 2800 students. The communities of Oak Park and River Forest are located just west of Chicago. Student backgrounds vary greatly socio-economically, ethnically (63% Caucasian, 28% African-American, 4% Hispanic, 4% Asian) and culturally. Average student standardized test scores are above the state and national averages. The chemistry class is a cross section of the lower 70% of the school community. Students in Ms. Bardeen's regular chemistry class, grades 10, 11 & 12 enter the computer lab, access the Internet on their computers, and begin to work with their teams on their current project. Students are busy talking with

489

Urban and Regional Air Quality  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

equipment equipment Urban and Regional Air Quality Research in this area is concerned with regional air quality issues such as: Controlling nitrogen oxides (NOx) and volatile organic compounds, to manage tropospheric ozone pollution. Hazardous air pollutants: using science to base standards on rigorously studied risks. Air quality and climate: how does climate influence air quality at a regional or local level? Current modeling practices often do not capture variations in pollutants such as ozone-they represent a limited sample of the diverse meteorology and human behavior that affect air pollution. Improved modeling of regional air quality will help understand variability, reveal patterns of behavior, and pollutant transport issues. Controlled experiments in lab and field can help validate improved models.

490

Clean Air Act | Department of Energy  

Office of Environmental Management (EM)

Clean Air Act Clean Air Act The primary law governing the Department of Energy (DOE) air pollution control activities is the Clean Air Act (CAA). This law defines the role of the...

491

DOE-HDBK-1169-2003; DOE Handbook Nuclear Air Cleaning Handbook  

Broader source: Energy.gov (indexed) [DOE]

B-1 B-1 APPENDIX B RECEIVING INSPECTION DIRECTION AND CHECKLIST The visual inspection should be performed by a person trained in the design and construction of a high- efficiency particulate air (HEPA) filter. When visual inspection is made, a strong lamp should be used to examine the exposed areas of both faces to ensure that no breaks, cracks, or pinholes are evident. In addition, a less intense light, such as a flashlight, can be used in a darkened room. The inspector should look for visible defects with the light projected along the full length of each channel created by the separators. Translucent spots will likely prove to be variations in thickness of the filter medium, which occur during manufacture. Breaks or cracks in the medium usually show up on the surface edges of the filter pleats but

492

Electrocatalysts for Nonaqueous Lithium–Air Batteries:...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electrocatalysts for Nonaqueous Lithium–Air Batteries: Status, Challenges, and Perspective. Electrocatalysts for Nonaqueous Lithium–Air Batteries: Status, Challenges,...

493

Remove Condensate with Minimal Air Loss  

Broader source: Energy.gov [DOE]

This tip sheet outlines several condensate removal methods as part of maintaining compressed air system air quality.

494

Fail save shut off valve for filtering systems employing candle filters  

DOE Patents [OSTI]

The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.

VanOsdol, John (Fairmont, WV)

2006-01-03T23:59:59.000Z

495

Fail Save Shut Off Valve for Filtering Systems Employing Candle Filters  

DOE Patents [OSTI]

The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.

VanOsdol, John

2006-01-03T23:59:59.000Z

496

Environmental continuous air monitor inlet with combined preseparator and virtual impactor  

DOE Patents [OSTI]

An inlet for an environmental air monitor is described wherein a pre-separator interfaces with ambient environment air and removes debris and insects commonly associated with high wind outdoors and a deflector plate in communication with incoming air from the pre-separator stage, that directs the air radially and downward uniformly into a plurality of accelerator jets located in a manifold of a virtual impactor, the manifold being cylindrical and having a top, a base, and a wall, with the plurality of accelerator jets being located in the top of the manifold and receiving the directed air and accelerating directed air, thereby creating jets of air penetrating into the manifold, where a major flow is deflected to the walls of the manifold and extracted through ports in the walls. A plurality of receiver nozzles are located in the base of the manifold coaxial with the accelerator jets, and a plurality of matching flow restrictor elements are located in the plurality of receiver nozzles for balancing and equalizing the total minor flow among all the plurality of receiver nozzles, through which a lower, fractional flow extracts large particle constituents of the air for collection on a sample filter after passing through the plurality of receiver nozzles and the plurality of matching flow restrictor elements.

Rodgers, John C. (Santa Fe, NM)

2007-06-19T23:59:59.000Z

497

Safeguarding indoor air quality  

SciTech Connect (OSTI)

California has created and implemented the first state program devoted exclusively to the investigation of nonindustrial indoor air quality. The program is responsible for promoting and conducting research on the determining factors of healthful indoor environments and is structured to obtain information about emission sources, ventilation effects, indoor concentrations, human activity patterns, exposures, health risks, control measures and public policy options. Data are gathered by a variety of methods, including research conducted by staff members, review of the available scientific literature, participation in technical meetings, contractual agreements with outside agencies, cooperative research projects with other groups and consultation with experts. 23 references, 1 figure, 1 table.

Sexton, K.; Wesolowski, J.J.

1985-01-01T23:59:59.000Z

498

Sandia National Laboratories: American Chemical SocietyInternational...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Materials LaboratoryAmerican Chemical Society International-Domestic Student Summit American Chemical Society International-Domestic Student Summit...

499

Fuel Cell Manufacturing: American Energy and Manufacturing Competitive...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Fuel Cell Manufacturing: American Energy and Manufacturing Competitiveness Summit Fuel Cell Manufacturing: American Energy and Manufacturing Competitiveness Summit Presentation on...

500

American Photovoltaics | Open Energy Information  

Open Energy Info (EERE)

American Photovoltaics American Photovoltaics Name American Photovoltaics Place Houston, Texas Zip 77002 Sector Solar Product Will manufacture thin-film solar modules Website http://apv-us.com/ Coordinates 29.752554°, -95.3704009° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":29.752554,"lon":-95.3704009,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}