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Note: This page contains sample records for the topic "air-cooled chiller condenser" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Energy Savings Calculator for Air-Cooled Electric Chillers | Department of  

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

Energy Savings Calculator for Air-Cooled Electric Chillers Energy Savings Calculator for Air-Cooled Electric Chillers Energy Savings Calculator for Air-Cooled Electric Chillers January 16, 2014 - 4:19pm Addthis This cost calculator is a screening tool that estimates a product's lifetime energy cost savings at various efficiency levels. Learn more about the calculator assumptions and definitions. Project Type Is this a new installation or a replacement? New Replacement How many chillers will you purchase? Performance Factors Existing What is the existing design condition? Full Load Partial Load What is the cooling capacity of the existing chiller? tons What is the full-load efficiency of the existing chiller? EER What is the partial-load efficiency of the existing chiller? EER New What is the new design condition? Full Load Partial Load

2

Dynamic performance testing of prototype 3 ton air-cooled carrier absorption chiller  

SciTech Connect (OSTI)

The performance of a prototype 3 ton cooling capacity air-cooled lithium bromide/water absorption chiller was tested using an absorption chiller test facility which was modified to expand its testing capabilities to include air-cooled chillers in addition to water-cooled chillers. Temperatures of the three externally supplied fluid loops: hot water, chilled water, and cooling air, were varied in order to determine the effects this would have on the two principal measures of chiller performance: cooling capacity and thermal coefficient of performance (COP). A number of interrelated factors were identified as contributing to less than expected performance. For comparison, experimental correlations of other investigators for this and other similar absorption chillers are presented. These have been plotted as both contour and three-dimensional performance maps in order to more clearly show the functional dependence of the chiller performance on the fluid loop temperatures.

Borst, R.R.; Wood, B.D.

1985-05-01T23:59:59.000Z

3

Covered Product Category: Air-Cooled Electric Chillers | Department...  

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

that application as shown below. Table 1. Efficiency Requirements for Federal Purchases: Air-Cooled Electric Chillersa Full-Load Optimized Applications products must meet both...

4

Covered Product Category: Air-Cooled Electric Chillers  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance and Federal efficiency requirements for electric chillers, which are a FEMP-designated product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

5

Air-cooled vacuum steam condenser  

SciTech Connect (OSTI)

This patent describes a steam powered system. It comprises: a turbine for converting steam energy into mechanical energy upon expansion of steam therein, a boiler for generating steam to be fed to the turbine, and a conduit arrangement coupling the boiler to the turbine and then recoupling the turbine exhaust to the boiler through steam condensing mechanisms. The condensing mechanisms including: a plurality of finned tubes through which the expanded exhaust steam flows and is condensed; a plurality of bundle from headers at the lower ends of the condensing tubes for receiving exhaust steam from the turbine; a plurality of bundle divided rear headers, one for each tube row in the bundle, at the higher ends of the condensing tubes for receiving non-condensible gases; and means in the rear and last headers to remove non-condensible gasses from the rear headers along their full length.

Larinoff, M.W.

1990-03-06T23:59:59.000Z

6

Air-cooled vacuum steam condenser  

SciTech Connect (OSTI)

This patent describes a steam powered system. It comprises: a turbine for converting steam energy into mechanical energy upon expansion of steam therein, a boiler for generating steam to be fed to the turbine, and a conduit arrangement coupling the boiler to the turbine and then recoupling the turbine exhaust to the boiler through steam condensing mechanisms.

Larinoff, M.W.

1990-02-27T23:59:59.000Z

7

E-Print Network 3.0 - air-cooled water chillers Sample Search...  

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

National Laboratory - Building Technologies Research and Integration Center Collection: Energy Storage, Conversion and Utilization 2 Data Mining for Modeling Chiller Systems in...

8

Air-cooled Condensers in Next-generation Conversion Systems  

Broader source: Energy.gov [DOE]

DOE Geothermal Program Peer Review 2010 - Presentation. Project objective: to reduce the costs associated with the generation of electrical power from air-cooled binary plants.

9

Measures against the adverse impact of natural wind on air-cooled condensers in power plant  

Science Journals Connector (OSTI)

The natural wind plays disadvantageous roles in the operation of air-cooled steam condensers in power plant. It is of use to take various measures against the adverse effect of wind for the performance improvemen...

LiJun Yang; XiaoZe Du; YongPing Yang

2010-05-01T23:59:59.000Z

10

Chapter 14: Chiller Evaluation Protocol  

SciTech Connect (OSTI)

This protocol defines a chiller measure as a project that directly impacts equipment within the boundary of a chiller plant. A chiller plant encompasses a chiller--or multiple chillers--and associated auxiliary equipment. This protocol primarily covers electric-driven chillers and chiller plants. It does not include thermal energy storage and absorption chillers fired by natural gas or steam, although a similar methodology may be applicable to these chilled water system components. Chillers provide mechanical cooling for commercial, institutional, multiunit residential, and industrial facilities. Cooling may be required for facility heating, ventilation, and air conditioning systems or for process cooling loads (e.g., data centers, manufacturing process cooling). The vapor compression cycle, or refrigeration cycle, cools water in the chilled water loop by absorbing heat and rejecting it to either a condensing water loop (water cooled chillers) or to the ambient air (air-cooled chillers).

Tiessen, A.

2014-09-01T23:59:59.000Z

11

Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal Lab  

Open Energy Info (EERE)

Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal Lab Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Air-Cooled Condensers in Next-Generation Conversion Systems Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Air-Cooling Project Description As the geothermal industry moves to use geothermal resources that are more expensive to develop, there will be increased incentive to use more efficient power plants. Because of increasing demand on finite supplies of water, this next generation of more efficient plants will likely need to reject heat sensibly to the ambient (air-cooling). This will be especially true in western states having higher grade Enhanced Geothermal Systems (EGS) resources, as well as most hydrothermal resources. If one had a choice, an evaporative heat rejection system would be selected because it would provide both cost and performance advantages. The evaporative system, however, consumes a significant amount of water during heat rejection that would require makeup. Though they use no water, air-cooling systems have higher capital costs, reduced power output (heat is rejected at a higher temperature), lower power sales due to higher parasitics (fan power), and greater variability in power output (because of large variation in the dry-bulb temperature).

12

Optimization of hybrid-water/air-cooled condenser in an enhanced turbine  

Open Energy Info (EERE)

Optimization of hybrid-water/air-cooled condenser in an enhanced turbine Optimization of hybrid-water/air-cooled condenser in an enhanced turbine geothermal ORC system Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Optimization of hybrid-water/air-cooled condenser in an enhanced turbine geothermal ORC system Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Air-Cooling Project Description The technical approaches are: -UTRC shall develop a lab-based analysis of hybrid-water/air-cooled condensers with minimal water consumption, focusing on combined mist evaporative pre-cooling and mist deluge evaporative cooling technology applied to microchannel heat exchangers. Models to predict evaporative cooling performance will be validated by sub-scale testing. The predicted performance will be compared to that of state-of-the-art commercial evaporative coolers. -UTRC shall analyze the interaction of turbine design and cooling needs and specifically address how an enhanced turbine, which features variable nozzles and diffuser boundary layer suction, would further improve the ORC system performance and enable full utilization of the hybrid-cooled system. UTRC shall design, procure and test the enhanced turbine in an existing 200 kW geothermal ORC system for a technology demonstration. -UTRC shall complete a detailed design of the hybrid-cooled geothermal ORC system with an enhanced turbine that complies with its performance, cost, and quality requirements, and use this system design to prescribe subsystem/component technology requirements and interfaces. UTRC shall optimize UTC's PureCycle® geothermal ORC system integrated with a hybrid-water/air-cooled condenser and an enhanced turbine for net power output, efficiency and water consumption. -UTRC shall analyze the feasibility of addressing pure water supply for hybrid-water/aircooled condenser by using geothermal-driven Liquid-Gap-Membrane-Distillation (LGMD) technology, as an alternative to conventional Reverse Osmosis/De-Ionized treatment.

13

Optimization of hybrid-water/air-cooled condenser in an enhanced turbine geothermal ORC system  

Broader source: Energy.gov [DOE]

DOE Geothermal Program Peer Review 2010 - Presentation. Project objective: To improve the efficiency and output variability of geothermal-based ORC power production systems with minimal water consumption by deploying: 1) a hybrid-water/air cooled condenser with low water consumption and 2) an enhanced turbine with high efficiency.

14

Air-cooled condensers eliminate plant water use  

SciTech Connect (OSTI)

River or ocean water has been the mainstay for condensing turbine exhaust steam since the first steam turbine began generating electricity. A primary challenge facing today's plant developers, especially in drought-prone regions, is incorporating processes that reduce plant water use and consumption. One solution is to shed the conventional mindset that once-through cooling is the only option and adopt dry cooling technologies that reduce plant water use from a flood to a few sips. A case study at the Astoria Energy plant, New York City is described. 14 figs.

Wurtz, W.; Peltier, R. [SPX Cooling Technologies Inc. (United States)

2008-09-15T23:59:59.000Z

15

Numerical simulation of heat transfer performance of an air-cooled steam condenser in a thermal power plant  

Science Journals Connector (OSTI)

Numerical simulation of the thermal-flow characteristics and heat transfer performance is made of an air-cooled steam condenser (ACSC) in a thermal power plant by considering the effects of ambient wind speed and...

Xiufeng Gao; Chengwei Zhang; Jinjia Wei; Bo Yu

2009-09-01T23:59:59.000Z

16

Federal Energy Management Program: Covered Product Category: Air-Cooled  

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

Air-Cooled Electric Chillers to someone by E-mail Air-Cooled Electric Chillers to someone by E-mail Share Federal Energy Management Program: Covered Product Category: Air-Cooled Electric Chillers on Facebook Tweet about Federal Energy Management Program: Covered Product Category: Air-Cooled Electric Chillers on Twitter Bookmark Federal Energy Management Program: Covered Product Category: Air-Cooled Electric Chillers on Google Bookmark Federal Energy Management Program: Covered Product Category: Air-Cooled Electric Chillers on Delicious Rank Federal Energy Management Program: Covered Product Category: Air-Cooled Electric Chillers on Digg Find More places to share Federal Energy Management Program: Covered Product Category: Air-Cooled Electric Chillers on AddThis.com... Energy-Efficient Products Federal Requirements

17

Organometallic Polymer Coatings for Geothermal-Fluid-Sprayed Air-Cooled Condensers: Preprint  

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

2 * NREL/CP-550-32148 2 * NREL/CP-550-32148 Organometallic Polymer Coatings for Geothermal- Fluid-Sprayed Air-Cooled Condensers Preprint K. Gawlik National Renewable Energy Laboratory T. Sugama Brookhaven National Laboratory D. Jung Two Phase Engineering & Research, Inc. To be presented at the Geothermal Resources Council Annual Meeting Reno, Nevada September 22-25, 2002 National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 NREL is a U.S. Department of Energy Laboratory Operated by Midwest Research Institute * Battelle * Bechtel Contract No. DE-AC36-99-GO10337 NOTICE The submitted manuscript has been offered by an employee of the Midwest Research Institute (MRI), a contractor of the US Government under Contract No. DE-AC36-99GO10337. Accordingly, the US

18

Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal...  

Open Energy Info (EERE)

makeup. Though they use no water, air-cooling systems have higher capital costs, reduced power output (heat is rejected at a higher temperature), lower power sales due to higher...

19

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

20

Integrated Chiller System Reduce Building Operation and Maintenance Costs in Cold Climates  

E-Print Network [OSTI]

Although water-cooled chillers are more energy efficient than air-cooled chillers, a majority of chilled water systems use air-cooled chillers. In cold weather climates, air-cooled chillers are capable of functioning in low ambient temperatures...

Sheets, N.; Liu, M.

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Improving Vortex Generators to Enhance the Performance of Air-Cooled Condensers in a Geothermal Power Plant  

SciTech Connect (OSTI)

This report summarizes work at the Idaho National Laboratory to develop strategies to enhance air-side heat transfer in geothermal air-cooled condensers such that it should not significantly increase pressure drop and parasitic fan pumping power. The work was sponsored by the U.S. Department of Energy, NEDO (New Energy and Industrial Technology Development Organization) of Japan, Yokohama National University, and the Indian Institute of Technology, Kanpur, India. A combined experimental and numerical investigation was performed to investigate heat transfer enhancement techniques that may be applicable to largescale air-cooled condensers such as those used in geothermal power applications. A transient heat transfer visualization and measurement technique was employed in order to obtain detailed distributions of local heat transfer coefficients on model fin surfaces. Pressure drop measurements were obtained for a variety of tube and winglet configurations using a single-channel flow apparatus that included four tube rows in a staggered array. Heat transfer and pressure drop measurements were also acquired in a separate multiple-tube row apparatus in the Single Blow Test Facility. In addition, a numerical modeling technique was developed to predict local and average heat transfer for these low-Reynolds number flows, with and without winglets. Representative experimental and numerical results were obtained that reveal quantitative details of local finsurface heat transfer in the vicinity of a circular tube with a single delta winglet pair downstream of the cylinder. Heat transfer and pressure-drop results were obtained for flow Reynolds numbers based on channel height and mean flow velocity ranging from 700 to 6500. The winglets were of triangular (delta) shape with a 1:2 or 1:3 height/length aspect ratio and a height equal to 90% of the channel height. Overall mean fin-surface heat transfer results indicate a significant level of heat transfer enhancement (in terms of Colburn j-factor) associated with deployment of the winglets with circular as well as oval tubes. In general, toe-in (common flow up) type winglets appear to have better performance than the toe-out (common flow down) type winglets. Comparisons of heat transfer and pressure drop results for the elliptical tube versus a circular tube with and without winglets are provided. During the course of their independent research, all of the researchers have established that about 10 to 30% enhancement in Colburn j-factor is expected. However, actual increase in heat transfer rate from a heat exchanger employing finned tubes with winglets may be smaller, perhaps on the order of 2 to 5%. It is also concluded that for any specific application, more full-size experimentation is needed to optimize the winglet design for a specific heat exchanger application. If in place of a circular tube, an oval tube can be economically used in a bundle, it is expected that the pressure drop across the tube bundle with the application of vortex generators (winglets) will be similar to that in a conventional circular tube bundle. It is hoped that the results of this research will demonstrate the benefits of applying vortex generators (winglets) on the fins to improve the heat transfer from the air-side of the tube bundle.

Manohar S. Sohal

2005-09-01T23:59:59.000Z

22

Wind Effect, Recirculation and Thermal Flow Field of a Direct Air?cooled Condenser for a Large Power Plant  

Science Journals Connector (OSTI)

The thermal effect experiments were carried out of a direct air?cooled system in the low speed wind tunnel. The influence of effect factors on recirculation is also discussion after that the relationship between the thermal flow field structure and recirculation ratio under the cooling tower is analyzed. At last the engineering measures to reduce or avoid recirculation are proposed. For certain conditions the experimental measurement shows close agreement with numerical values.

W. L. Zhao; P. Q. Liu; H. S. Duan; J. Y. Zhu

2011-01-01T23:59:59.000Z

23

The absorption chiller in large scale solar pond cooling design with condenser heat rejection in the upper convecting zone  

SciTech Connect (OSTI)

The possibility of using solar ponds as low-cost solar collectors combined with commercial absorption chillers in large scale solar cooling design is investigated. The analysis is based on the combination of a steady-state solar pond mathematical model with the operational characteristics of a commercial absorption chiller, assuming condenser heat rejection in the upper convecting zone (U.C.Z.). The numerical solution of the nonlinear equations involved leads to results which relate the chiller capacity with pond design and environmental parameters, which are also employed for the investigation of the optimum pond size for a minimum capital cost. The derived cost per cooling kW for a 350 kW chiller ranges from about 300 to 500 $/kW cooling. This is almost an order of magnitude lower than using a solar collector field of evacuated tube type.

Tsilingiris, P.T. (Commercial Bank of Greece, Athens (Greece))

1992-07-01T23:59:59.000Z

24

Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption for CHP Applications, April 2005  

Broader source: Energy.gov [DOE]

Development status of air-cooled lithium bromide (LiBr)-water absorption chillers for cooling, heating, and power (CHP) system applications in light-commercial buildings.

25

Energy Cost Savings Calculator for Air-Cooled Electric Chillers  

Broader source: Energy.gov [DOE]

This calculator is a screening tool that estimates a product's lifetime energy cost savings at various efficiency levels.

26

Modeling and optimization of a chiller plant Xiupeng Wei*  

E-Print Network [OSTI]

based on a simulation program [9]. Optimum set point of condensing water temperature for chillers to model a chiller plant that has four chillers, four cooling towers, and two chilled water storage tanks of chillers, cooling towers, pumps and chilled water storage tanks. It is frequently used to air conditioning

Kusiak, Andrew

27

Hybrid and Advanced Air Cooling Geothermal Lab Call Project | Open Energy  

Open Energy Info (EERE)

and Advanced Air Cooling Geothermal Lab Call Project and Advanced Air Cooling Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Hybrid and Advanced Air Cooling Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Air-Cooling Project Description Many geothermal power plants in the U.S. are air-cooled because of water limitations. NREL has worked with industry to explore various strategies for boosting the performance of air coolers in hot weather. Computer modeling and experimental measurements have been done on the use of evaporative media upstream of the air-cooled condensers at the Mammoth Lakes Power Plant. NREL has also analyzed the use of an air-cooled condenser in series with (i.e., upstream of) a water-cooled condenser and found that this can be beneficial for power cycles requiring desuperheating of the turbine exhaust vapor. Recently, the conventional power industry has developed an interest in operating water- and air-cooled condensers in parallel. This arrangement allows a small water cooler to reduce the heat transfer duty on the air cooler on hot summer days thereby allowing the condensing working fluid to make a much closer approach to the air dry bulb temperature.

28

A comparative assessment of alternative combustion turbine inlet air cooling system  

SciTech Connect (OSTI)

Interest in combustion turbine inlet air cooling (CTAC) has increased during the last few years as electric utilities face increasing demand for peak power. Inlet air cooling increases the generating capacity and decreases the heat rate of a combustion turbine during hot weather when the demand for electricity is generally the greatest. Several CTAC systems have been installed, but the general applicability of the concept and the preference for specific concepts is still being debated. Concurrently, Rocky Research of Boulder City, Nevada has been funded by the U.S. Department of Energy to conduct research on complex compound (ammoniated salt) chiller systems for low-temperature refrigeration applications.

Brown, D.R.; Katipamula, S.; Konynenbelt, J.H.

1996-02-01T23:59:59.000Z

29

Hybrid and Advanced Air Cooling | Department of Energy  

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

Hybrid and Advanced Air Cooling Hybrid and Advanced Air Cooling Hybrid and Advanced Air Cooling presentation at the April 2013 peer review meeting held in Denver, Colorado....

30

Chillers | Open Energy Information  

Open Energy Info (EERE)

TODO: Add description List of Chillers Incentives Retrieved from "http:en.openei.orgwindex.php?titleChillers&oldid267152" Category: Articles with outstanding TODO tasks...

31

Case Study: Evaluating Liquid versus Air Cooling in the Maui...  

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

Case Study: Evaluating Liquid versus Air Cooling in the Maui High Performance Computing Center Case Study: Evaluating Liquid versus Air Cooling in the Maui High Performance...

32

High-Temperature, Air-Cooled Traction Drive Inverter Packaging...  

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

Temperature, Air-Cooled Traction Drive Inverter Packaging High-Temperature, Air-Cooled Traction Drive Inverter Packaging 2010 DOE Vehicle Technologies and Hydrogen Programs Annual...

33

Air Cooling Technology for Advanced Power Electronics and Electric...  

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

Air Cooling Technology for Advanced Power Electronics and Electric Machines Air Cooling Technology for Advanced Power Electronics and Electric Machines 2009 DOE Hydrogen Program...

34

Preoperational test report, primary ventilation condenser cooling system  

SciTech Connect (OSTI)

This represents the preoperational test report for the Primary Ventilation Condenser Cooling System, Project W-030. Project W-030 provides a ventilation upgrade for the four Aging Waste Facility tanks. The system uses a closed chilled water piping loop to provide offgas effluent cooling for tanks AY101, AY102, AZ1O1, AZ102; the offgas is cooled from a nominal 100 F to 40 F. Resulting condensation removes tritiated vapor from the exhaust stack stream. The piping system includes a package outdoor air-cooled water chiller with parallel redundant circulating pumps; the condenser coil is located inside a shielded ventilation equipment cell. The tests verify correct system operation and correct indications displayed by the central Monitor and Control System.

Clifton, F.T.

1997-10-29T23:59:59.000Z

35

Covered Product Category: Air-Cooled Ice Machines  

Broader source: Energy.gov [DOE]

The Federal Energy Management Program (FEMP) provides acquisition guidance for air-cooled ice machines, which are covered by the ENERGY STAR program.

36

Air Cooling Technology for Advanced Power Electronics and Electric...  

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

OF AIR COOLING FOR USE WITH AUTOMOTIVE POWER ELECTRONICS Desikan Bharathan, Kenneth Kelly National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado, 80401...

37

Air Cooling Technology for Power Electronic Thermal Control  

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

between model and test results * Developed innovative air-cooled heat sink concept - Heat transfer area doubled - Pressure loss decreased by 50% - Colder air directed to...

38

Nanolubricants to Improve Chiller Performance  

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

Nanolubricants to Improve Chiller Nanolubricants to Improve Chiller Performance Mark Kedzierski NIST MAK@NIST.GOV 301 975 5282 April 3, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Enabling technology for improving the efficiency of chillers that cool large buildings with nanolubricants. (Nanolubricants are not currently used in chillers.) Develop fundamental understanding of how nanolubricants enhance refrigerant/nanolubricant. What nanoparticle size,

39

Green Cooling: Improving Chiller Efficiency  

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

1 1 Green Cooling: Improving Chiller Efficiency This new chiller simulation module being developed by Building Performance Assurance Project members will help building managers compare optimal and actual chiller efficiency. Chillers are the single largest energy consumers in commercial buildings. These machines create peaks in electric power consumption, typically during summer afternoons. In fact, 23% of electricity generation is associated with powering chillers that use CFCs and HCFCs, ozone-depleting refrigerants. Satisfying the peak demand caused by chillers forces utilities to build new power plants. However, because chiller plants run the most when the weather is hot and very little at other times, their load factors - and hence the utilities' load factors (the percentage of time the

40

Development of a single-family absorption chiller for use in a solar heating and cooling system. Phase III, final report. Volume II  

SciTech Connect (OSTI)

The appendices provide supporting information on: properties of a chemical system for solar fired, air-cooled absorption equipment, air-side performance of a one-inch tube, absorber plate-fin coil, listings of the programs used for simulation and data reduction, and evaluation of the Carrier 3-ton chiller in an integrated heating and cooling system. (LEW)

Reimann, R.C.; Biermann, W.J.

1984-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Clean Air-Cool Planet Community Toolkit | Open Energy Information  

Open Energy Info (EERE)

Clean Air-Cool Planet Community Toolkit Clean Air-Cool Planet Community Toolkit Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Clean Air-Cool Planet Community Toolkit Agency/Company /Organization: Clean Air-Cool Planet Partner: Jeffrey H. Taylor and Associates Inc. Sector: Climate Focus Area: Energy Efficiency, Buildings, - Landfill Gas, - Waste to Energy, - Solar PV, Wind, Transportation, Agriculture, People and Policy, Food Supply, - Materials, Offsets and Certificates, Greenhouse Gas Phase: Bring the Right People Together, Determine Baseline, Get Feedback, Develop Finance and Implement Projects, Create Early Successes Resource Type: Guide/manual, Case studies/examples, Templates User Interface: Website Website: www.cleanair-coolplanet.org/for_communities/toolkit_home.php

42

Heat Transfer from an Air-Cooled Rotating Disk  

Science Journals Connector (OSTI)

19 February 1974 research-article Heat Transfer from an Air-Cooled Rotating Disk J. M. Owen C...theoretical and experimental investigation into the heat transfer from a disk rotating close to a stator with a radial...

1974-01-01T23:59:59.000Z

43

Parallel Condensing System As A Heat Sink For Power Plants  

E-Print Network [OSTI]

Conventional heat sink technologies of use the condenser/cooling tower arrangement or an air cooled condenser for condensing exhaust steam from steam turbines. Each of these two systems have certain advantages as well as disadvantages. This paper...

Akhtar, S. Z.

44

Triple effect absorption chiller utilizing two refrigeration circuits  

SciTech Connect (OSTI)

This patent describes a heat absorption method for an absorption chiller. It comprises: providing a firs absorption system circuit for operation within a first temperature range, providing a second absorption system circuit for operation within a second temperature range; heat exchanging refrigerant and absorber solution; thermal communication with an external heat load. This patent describes a heat absorption apparatus for use as an absorption chiller. It includes: a first absorption system circuit for operation within a first temperature range; a second absorption system circuit for operation within a second temperature range which has a lower maximum temperature relative to the first temperature range; the first circuit having generator means, condenser means, evaporator means, and absorber means operatively connected together; the second circuit having generator means condenser means, evaporator means, and absorber means operative connected together; and the first circuit condenser means and the first circuit absorber means being in heat exchange communication with the second circuit generator means.

DeVault, R.C.

1988-03-22T23:59:59.000Z

45

The rediscovery of absorption chillers  

SciTech Connect (OSTI)

Absorption chillers are back - and for two very good reasons: they are environmentally sound and, in many cases, economically attractive. One factor fueling this resurgence is the outlook for natural gas, the energy source of most absorption systems. Deregulation has spurred exploration, and forecasts indicate an abundant supply and relatively low prices through 2050. Threats of global warming and depletion of the ozone layer also are forces driving the absorption chiller market. Being a good corporate citizen today means minimizing or eliminating the use of chlorofluorocarbons (CFCs), the basis of many refrigerants used in mechanical chillers. Even as chemical and chiller manufacturers alike work to develop substitute refrigerants, the perfect alternative has yet to be found. Absorption units are free of these problems, a benefit that appeals to many people.

Katzel, J.

1992-04-23T23:59:59.000Z

46

Federal Energy Management Program: Covered Product Category: Air-Cooled Ice  

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

Air-Cooled Ice Makers to someone by E-mail Air-Cooled Ice Makers to someone by E-mail Share Federal Energy Management Program: Covered Product Category: Air-Cooled Ice Makers on Facebook Tweet about Federal Energy Management Program: Covered Product Category: Air-Cooled Ice Makers on Twitter Bookmark Federal Energy Management Program: Covered Product Category: Air-Cooled Ice Makers on Google Bookmark Federal Energy Management Program: Covered Product Category: Air-Cooled Ice Makers on Delicious Rank Federal Energy Management Program: Covered Product Category: Air-Cooled Ice Makers on Digg Find More places to share Federal Energy Management Program: Covered Product Category: Air-Cooled Ice Makers on AddThis.com... Energy-Efficient Products Federal Requirements Covered Product Categories Product Designation Process

47

High-Temperature Air-Cooled Power Electronics Thermal Design (Presentation)  

SciTech Connect (OSTI)

This presentation discusses the status of research at NREL on high temperature air-cooled power electronics thermal design.

Waye, S.

2014-06-01T23:59:59.000Z

48

Evaluation of Aqua-Ammonia Chiller Technologies and Field Site Installation  

SciTech Connect (OSTI)

The Naval Facilities Engineering Service Center (NFESC) has sponsored Oak Ridge National Laboratory (ORNL) to review, select, and evaluate advanced, gas-fired, 5-ton, aqua-ammonia, chiller technologies. The selection criteria was that units have COP values of 0.67 or better at Air-conditioning and Refrigeration Institute (ARI) 95 F outdoor rating conditions, an active refrigerant flow control, and a variable-speed condenser fan. These features are expected to allow these units to operate at higher ambient temperatures (up to the maximum operating temperature of 110 F) with minimal degradation in performance. ORNL evaluated three potential manufacturers of advanced, gas-fired, 5-ton, aqua-ammonia chillers-Robur, Ambian, and Cooling Technologies. Unfortunately, Robur did not meet the COP requirements and Cooling Technologies could not deliver a unit to be tested at the U.S. Department of Energy (DOE)-ORNL environmental chamber testing facility for thermally activated heat pumps. This eliminated these two technologies from further consideration, leaving only the Ambian chillers for evaluation. Two Ambian chillers were evaluated at the DOE-ORNL test facility. Overall these chillers operated well over a wide range of ambient conditions with minimal degradation in performance due to several control strategies used such as a variable speed condenser fan, a modulating burner, and active refrigerant flow control. These Ambian pre-commercial units were selected for installation and field testing at three federal facilities. NFESC worked with ORNL to assist with the site selection for installation and evaluation of these chillers. Two sites (ORNL and Naval Surface Warfare Center [NSWC] Corona) had a single chiller unit installed; and at one site (Naval Amphibious Base [NAB] Little Creek), two 5-ton chillers linked together were installed to provide 10 tons of cooling. A chiller link controller developed under this project was evaluated in the field test at Little Creek.

Zaltash, Abdolreza [ORNL

2007-09-01T23:59:59.000Z

49

Purge needs in absorption chillers  

SciTech Connect (OSTI)

Absorption chillers are regaining a significant share of large tonnage chiller sales, such as they had 20 years ago. Gas-fired chillers are now available that have a base energy (ultimate fuel usage) consumption rate per ton comparable to that in electric units. Effective purging in an absorption chiller is an absolute necessity to achieve the low chilled water temperature needed for dehumidification and to fully benefit from the energy savings offered by double-effect cycles. Although the purge system is usually not shown on the typical cycle schematic, its proper functioning is a key requirement for satisfactory machine operation. This article discusses the effect of noncondensible (N/C) gases on the absorption cooling process and the basics of purge systems. In addition, the article discusses the rationale for the important design step of selecting the location of the N/C probe, and discusses purge systems applicable to the direct-fired, double-effect machines now entering the marketplace.

Murray, J.G. (Battelle, Columbus, OH (United States))

1993-10-01T23:59:59.000Z

50

Air Cooling for High Temperature Power Electronics (Presentation)  

SciTech Connect (OSTI)

Current emphasis on developing high-temperature power electronics, including wide-bandgap materials such as silicon carbide and gallium nitride, increases the opportunity for a completely air-cooled inverter at higher powers. This removes the liquid cooling system for the inverter, saving weight and volume on the liquid-to-air heat exchanger, coolant lines, pumps, and coolant, replacing them with just a fan and air supply ducting. We investigate the potential for an air-cooled heat exchanger from a component and systems-level approach to meet specific power and power density targets. A proposed baseline air-cooled heat exchanger design that does not meet those targets was optimized using a parametric computational fluid dynamics analysis, examining the effects of heat exchanger geometry and device location, fixing the device heat dissipation and maximum junction temperature. The CFD results were extrapolated to a full inverter, including casing, capacitor, bus bar, gate driver, and control board component weights and volumes. Surrogate ducting was tested to understand the pressure drop and subsequent system parasitic load. Geometries that met targets with acceptable loads on the system were down-selected for experimentation. Nine baseline configuration modules dissipated the target heat dissipation, but fell below specific power and power density targets. Six optimized configuration modules dissipated the target heat load, exceeding the specific power and power density targets. By maintaining the same 175 degrees C maximum junction temperature, an optimized heat exchanger design and higher device heat fluxes allowed a reduction in the number of modules required, increasing specific power and power density while still maintaining the inverter power.

Waye, S.; Musselman, M.; King, C.

2014-09-01T23:59:59.000Z

51

Closed loop air cooling system for combustion turbines  

DOE Patents [OSTI]

Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts.

Huber, David John (North Canton, OH); Briesch, Michael Scot (Orlando, FL)

1998-01-01T23:59:59.000Z

52

Case Study: Evaluating Liquid versus Air Cooling in the Maui High Performance Computing Center  

Broader source: Energy.gov [DOE]

Study evaluates the energy efficiency of a new, liquid-cooled computing system applied in a retrofit project compared to the previously used air-cooled system.

53

Case Study: Evaluating Liquid v. Air Cooling in the Maui High...  

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

Liquid Cooling v. Air Cooling Evaluation in the Maui High Performance Computing Center Prepared for the U.S. Department of Energy Federal Energy Management Program By Lawrence...

54

Air Cooling Technology for Advanced Power Electronics and Electric Machines (Presentation)  

SciTech Connect (OSTI)

This presentation gives an overview of the status and FY09 accomplishments for the NREL thermal management research project 'Air Cooling for Power Electronics'.

Bharathan, D.

2009-05-01T23:59:59.000Z

55

Healthcare Energy: Spotlight on Chiller Plants  

Broader source: Energy.gov [DOE]

The Building Technologies Office conducted a healthcare energy end-use monitoring project for two sites. Read details about the chiller plant energy results.

56

Direct Refrigeration from Heat Recovery Using 2-Stage Absorption Chillers  

E-Print Network [OSTI]

absorption chiller which can produce chilled water 44% more efficiently than the conventional single stage absorption chillers. The new 2-stage parallel flow system makes the chiller package more compact, more efficient, and easier to operate. Many types...

Hufford, P. E.

1983-01-01T23:59:59.000Z

57

Covered Product Category: Water-Cooled Electric Chillers | Department...  

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

Electric Chillers Covered Product Category: Water-Cooled Electric Chillers The Federal Energy Management Program (FEMP) provides acquisition guidance and Federal efficiency...

58

Enhanced heat transfer tubes for film absorbers of absorption chiller/heater  

SciTech Connect (OSTI)

Absorption chiller/heaters using non-CFC refrigerants are attracting attention as environmentally friendly energy systems. As the refrigerant/absorbent pair, the water/lithium bromide aqueous solution pair is preferably used for most absorption chiller/heaters in Japan. Absorption chiller/heaters, mainly used as water chillers and air-conditioners, are commercially available at least for unit cooling capacities above 60 kW. In absorption chiller/heaters, the absorber must be made compact, because the absorber has the largest heat transfer area of the four primary heat exchangers in the system: the evaporator, absorber, regenerator and condenser. Although a great amount of information is available on the evaporator and condenser, the same type of information concerning the absorber is lacking. This paper introduces two kinds of double fluted tubes called Arm tubs and Floral tubes for film absorbers. Arm tubes are manufactured using a two-pass drawbench process, while Floral tubes are made using a single pass drawbench process. The experiments using a lithium bromide aqueous solution with the addition of 250 ppm n-octyl alcohol as the surfactant showed that Arm tubes and Floral tubes had about 40% higher heat transfer performance than plain tubes. Therefore, Floral tubes are expected to realize a high performance at low cost. Furthermore, the optimization of the number of grooves on the outside of the tubes is also described here.

Sasaki, Naoe; Nosetani, Tadashi [Sumitomo Light Metal Industry, Ltd., Nagoya, Aichi (Japan); Furukawa, Masahiro; Kaneko, Toshiyuki [Sanyo Electric Co., Ltd., Ora, Gunma (Japan). Commercial Air-Conditioning Div.

1995-12-31T23:59:59.000Z

59

Modeling and Optimization of the Turbo-Compression Chiller Systems in the LCD Process  

Science Journals Connector (OSTI)

Modeling and Optimization of the Turbo-Compression Chiller Systems in the LCD Process ... The refrigerator can be divided into two parts, as shown in Figure 2: the mechanical part, consisting of a compressor, an expander or a valve, and two heat exchangers (e.g., an evaporator and a condenser); and the chemical-material part of the refrigerant cycle. ...

Changhyun Jeong; Kiwook Song; Jiyeon Nam; Chonghun Han

2012-01-16T23:59:59.000Z

60

Triple effect absorption chiller utilizing two refrigeration circuits  

SciTech Connect (OSTI)

A heat absorption method for an absorption chiller is described comprising: (a) providing a first absorption system circuit for operation within a first temperature range; (b) providing a second absorption system circuit for operation within a second temperature range which has a lower maximum temperature than the first temperature range; (c) heat exchanging refrigerant and absorber solution from the first circuit condenser and absorber with absorption solution from the generator of the second circuit; and (d) the evaporator of the first circuit and the evaporator of the second circuit both being disposed in thermal communication with an external heat load to withdraw heat from the heat load.

De Vault, R.C.

1988-03-22T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

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

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

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers Title Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers Publication Type Report LBNL Report Number LBNL-4951E Year of Publication 2011 Authors Coles, Henry C., Tae Won Han, Phillip N. Price, Ashok J. Gadgil, and William F. Tschudi Date Published 03/2011 Abstract 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 percentage 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:

62

Residential solar-absorption chiller thermal dynamics  

SciTech Connect (OSTI)

Research is reported on the transient performance of a commercial residential 3 ton lithium bromide-water absorption chiller designed for solar firing. Emphasis was placed on separating the chiller response from that of the entire test facility so that its transient response could solely be observed and quantified. It was found that the entire system time response and thermal capacitance has a major impact on performance degradation due to transient operation. Tests run to ascertain computer algorithms which simulate system isolated chiller performance, revealed processes hitherto undocumented. Transient operation is simulated by three distinct algorithms associated with the three phases of chiller operation. The first phase is start up time. It was revealed during testing that the time required to reach steady state performance values, when the chiller was turned on, was a linear function of steady state water supply temperatures. The second phase is quasi steady state performance. Test facility's performance compared favorably with the manufacturer's published data. The third phase is the extra capacity produced during spin down. Spin down occurs when the hot water supply pump is turned off while the other system pumps remain operating for a few minutes, thus allowing extra chiller capacity to be realized. The computer algorithms were used to generate plots which show the operational surface of an isolated absorption chiller subjected to off design and transient operation.

Guertin, J.M.; Wood, B.D.; McNeill, B.W.

1981-03-01T23:59:59.000Z

63

Analysis of Inlet Air Cooling for IGCC Power Augmentation  

Science Journals Connector (OSTI)

Abstract Integrated Gasification Combined Cycles are energy systems mainly composed of a gasifier and a combined cycle power plant. Since the gasification process usually requires oxygen as an oxidant, an air separation unit is also part of the plant. Moreover, a producer gas cleaner unit is always present between the gasifier and the gas turbine. With respect to Natural Gas Combined Cycles, \\{IGCCs\\} are characterized by a consistent loss in the overall plant efficiency due to the conversion of the raw fuel in the gasifier and the electrical power parasitized for fuel production which considerably reduce the plant net electric power. Moreover, since these plants are based on gas-steam combined cycle power plants they suffer from a reduction in performance (a further net power decrease) when ambient temperature increases. Regarding this latter topic, different systems are currently used in gas turbine and combined cycle power plants in order to reduce gas turbine inlet air temperature, and, therefore, the impact of ambient conditions on performances. In this paper, a review of these systems is presented. Both systems based on water evaporative cooling and on refrigeration by means of absorption or mechanical/electrical chillers are described. Thermodynamic models of the systems are built within the framework of a commercial code for the simulation of energy conversion systems. A sensitivity analysis on the main parameters is presented. Finally, the models are applied to study the capabilities of the different systems by imposing the real temperature profiles of different sites for a whole year.

Andrea De Pascale; Francesco Melino; Mirko Morini

2014-01-01T23:59:59.000Z

64

Cold side thermal energy storage system for improved operation of air cooled power plants  

E-Print Network [OSTI]

Air cooled power plants experience significant performance fluctuations as plant cooling capacity reduces due to higher daytime temperature than nighttime temperature. The purpose of this thesis is to simulate the detailed ...

Williams, Daniel David

2012-01-01T23:59:59.000Z

65

Converting Centrifugal Chillers to HCFC-123  

E-Print Network [OSTI]

This paper describes the effect that the issue of ozone depletion has on the owners and operators of large commercial water chillers that currently use chlorofluorocarbons (CFC's) for refrigeration. The production ban of CFC's mandated...

Siebert, B.

66

Semi-Empirical Screw Compressor Chiller Model  

E-Print Network [OSTI]

A screw chiller model which is based on a first principles, semi-empirical analysis that describes the system performance based on observations of the thermodynamic processes is developed. This model is a modified method to empirically derive...

Nelson, I. C.; Culp, C.; Graves, R. D.

67

Lithium bromide chiller technology in gas processing  

SciTech Connect (OSTI)

Lithium Bromide (LiBr) Absorption Chillers have been in use for more than half a century, mainly in the commercial air conditioning industry. The Gas Research Institute and EnMark Natural Gas Company co-funded a field test to determine the viability of this commercial air conditioning technology in the gas industry. In 1991, a 10 MMCFC natural gas conditioning plant was constructed in Sherman, Texas. The plant was designed to use a standard, off-the-shelf chiller from Trane with a modified control scheme to maintain tight operating temperature parameters. The main objective was to obtain a 40 F dewpoint natural gas stream to meet pipeline sales specifications. Various testing performed over the past three years has proven that the chiller can be operated economically and on a continuous basis in an oilfield environment with minimal operation and maintenance costs. This paper will discuss how a LiBr absorption chiller operates, how the conditioning plant performed during testing, and what potential applications are available for LiBr chiller technology.

Huey, M.A.; Leppin, D.

1995-12-31T23:59:59.000Z

68

List of Chillers Incentives | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » List of Chillers Incentives Jump to: navigation, search The following contains the list of 374 Chillers Incentives. CSV (rows 1 - 374) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP (Central and North) - CitySmart Program (Texas) Utility Rebate Program Texas Commercial Industrial Institutional Local Government Schools Boilers Central Air conditioners Chillers Comprehensive Measures/Whole Building Custom/Others pending approval Energy Mgmt. Systems/Building Controls Furnaces Heat pumps Lighting Lighting Controls/Sensors Motor VFDs Motors

69

Gas engine driven chiller development and economics  

SciTech Connect (OSTI)

The TECOGEN Division of Thermo Electron Corporation has developed a nominal 150 ton engine driven chiller system under the sponsorship of the Gas Research Institute. The system incorporates an engine directly driving a screw compressor to produce about 130 tons of cooling capacity and a single effect absorption chiller driven by hot water recovered from engine heat to produce another 30 tons of cooling capacity. An economic analysis shows that it will be possible to recover the cost premium of engine driven chiller systems in most US cities in 3 years or less with the O and M savings of these systems when this cost premium is $30 per ton. 4 references, 13 figures, 5 tables.

Koplow, M.D.; Searight, E.F.; Panora, R.

1986-03-01T23:59:59.000Z

70

Lithium bromide absorption chiller passes gas conditioning field test  

SciTech Connect (OSTI)

A lithium bromide absorption chiller has been successfully used to provide refrigeration for field conditioning of natural gas. The intent of the study was to identify a process that could provide a moderate level of refrigeration necessary to meet the quality restrictions required by natural-gas transmission companies, minimize the initial investment risk, and reduce operating expenses. The technology in the test proved comparatively less expensive to operate than a propane refrigeration plant. Volatile product prices and changes in natural-gas transmission requirements have created the need for an alternative to conventional methods of natural-gas processing. The paper describes the problems with the accumulation of condensed liquids in pipelines, gas conditioning, the lithium bromide absorption cycle, economics, performance, and operating and maintenance costs.

Lane, M.J.; Huey, M.A. [Nicol and Associates, Richardson, TX (United States)

1995-07-31T23:59:59.000Z

71

Covered Product Category: Air-Cooled Ice Makers | Department of Energy  

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

Ice Makers Ice Makers Covered Product Category: Air-Cooled Ice Makers October 7, 2013 - 11:09am Addthis ENERGY STAR Qualified Products FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including air-cooled ice makers, which are covered by the ENERGY STAR® program. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Manufacturers display the ENERGY STAR label on complying models. Check the qualified products list maintained on the ENERGY STAR website to see if a model is ENERGY STAR-qualified. Meeting Energy Efficiency Requirements for Air-Cooled Ice Makers For the most up-to-date efficiency levels required for this product

72

Clean Air Cool Planet (CA-CP) Small Town Carbon Calculator | Open Energy  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Clean Air Cool Planet (CA-CP) Small Town Carbon Calculator Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Clean Air Cool Planet (CA-CP) Small Town Carbon Calculator Focus Area: Crosscutting Topics: Opportunity Assessment & Screening Website: www.cleanair-coolplanet.org/for_communities/stocc.php Equivalent URI: cleanenergysolutions.org/content/clean-air-cool-planet-ca-cp-small-tow Language: English Policies: Deployment Programs DeploymentPrograms: Training & Education The Small Town Carbon Calculator (STOCC) was developed to help small towns address the growing costs of municipal energy use and emissions. It is a tool to inventory greenhouse gas emissions as well as energy use and to

73

Clean Air-Cool Planet Small Town Carbon Calculator | Open Energy  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Clean Air-Cool Planet Small Town Carbon Calculator Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Clean Air-Cool Planet Small Town Carbon Calculator Agency/Company /Organization: Clean Air-Cool Planet Partner: Carbon Solutions New England, The University of New Hampshire, ICLEI, Environmental Protection Agency Sector: Climate Focus Area: Buildings, Transportation, Greenhouse Gas Phase: Determine Baseline, Evaluate Effectiveness and Revise as Needed Resource Type: Software/modeling tools User Interface: Spreadsheet Website: www.cleanair-coolplanet.org/for_communities/stocc.php

74

Artificial Neural Network modelling of sorption chillers  

Science Journals Connector (OSTI)

Abstract Solar cooling is still a young and small but growing market with a large potential. An increasing market development of solar cooling and so-called SolarCombiPlus systems (solar thermal systems providing domestic hot water, space heating and space cooling) can help to reduce primary energy demand and hence emissions of greenhouse gases. To support the market entry and to enhance the market penetration it is important to strengthen consumers confidence in these systems. An important aspect for achieving this goal is a standardised method to predict the performance of the complete solar cooling system under real operating conditions. Nonetheless, objective performance test methods are not yet common standard. In this context a performance test method for solar cooling and SolarCombiPlus systems based on the CTSS method (Component Testing System Simulation) has been developed by the Research and Testing Centre for Thermal Solar Systems (TZS) of the Institute for Thermodynamics and Thermal Engineering (ITW) at the University of Stuttgart within the project SolTrans. For the proposed extended CTSS method numerical models are required in order to describe the thermal behaviour of sorption chillers. The main target of the work presented in this paper is dedicated to the development of appropriate models for sorption chillers which can be used for the extended CTSS method. The approach used is the experimental system identification1 In the field of the experimental system identification a mathematical model of a dynamical system (e.g. sorption chiller) is derived from measurements. 1 based on Artificial Neural Networks (ANN). In this approach experimentally measured data are used to derive an ANN model which is able to predict the outlet temperatures of a sorption chiller. In the work presented, measured data of an adsorption chiller were used to develop such an ANN model which is suitable to predict the outlet temperatures of the three hydraulic loops of adsorption chillers. The model was validated with measured data obtained under real operating conditions. The simulated output temperatures show a very good agreement with the measured temperatures.

Patrick Frey; Stephan Fischer; Harald Drck

2014-01-01T23:59:59.000Z

75

Wind tunnel simulation of exhaust recirculation in an air-cooling system at a large power plant  

Science Journals Connector (OSTI)

The recirculation of hot exhaust air and its dependence on wind direction was investigated as a cause of reduced efficiency in an air-cooled condenser (ACC). A method of simulating exhaust air recirculation at an ACC platform using a wind tunnel is presented, and applied to a proposed ACC addition at an existing power plant. It was found that wind speed and the height of an ACC platform have a significant impact on recirculation. Wind direction was also found to be significant, due to the interference of the buildings adjacent to the ACC platform. The mechanisms that cause recirculation are presented and analyzed, and the characteristics of the recirculating flow are described. It was found that when considering additions to existing power plants, the distance of the new ACC and power plant from the original buildings and structures has only a minor effect on the recirculation of the added ACC platform. Wind tunnel simulation is recommended in the initial design stage of new or renovated power plants with ACC systems to minimize exhaust recirculation.

Zhifu Gu; Xuerei Chen; William Lubitz; Yan Li; Wenlin Luo

2007-01-01T23:59:59.000Z

76

Chiller-heater unit nets building 2-yr payback  

SciTech Connect (OSTI)

A 500-ton double-absorption Hitachi Paraflow chiller-heater that switches from purchased steam to natural gas will reduce a Manhattan office building's energy costs by 55% and achieve a two-year payback. The new system replaces a steam-powered, single-stage absorption chiller. By reusing heat in a second-stage generator, the Hitachi unit uses only half as many Btus per ton as a conventional chiller. (DCK)

Duffy, J.

1983-05-09T23:59:59.000Z

77

Steam generator air-cooling and ways to increase its effectiveness  

SciTech Connect (OSTI)

To shorten the downtime for repair of steam turbines, various methods for rapid cooling of the turbine can be used. One method is to cool the turbine with free air whose movement is controlled by a standard ejector through the flow passage in sequence of the high-, medium-, and low-pressure zones of the turbine. The effectiveness of air cooling the turbine through use of a counterflow system for controlling air flow through the turbine is discussed.

Kulichikhin, V.V.; Tazhiev, E.I.; Leshchinskii, A.M.; Zubov, P.A.

1982-10-01T23:59:59.000Z

78

Use Low-Grade Waste Steam to Power Absorption Chillers  

Broader source: Energy.gov [DOE]

This tip sheet on waste steam to power absorption chillers provides how-to advice for improving steam systems using low-cost, proven practices and technologies.

79

Advanced Exergy Analysis for a Solar Double Stage Absorption Chiller.  

E-Print Network [OSTI]

??Solar driven absorption chiller technology as an alternative mechanism for cooling has been the focus of tremendous recent interest due to its potential advantages for (more)

Hu, Yang

2012-01-01T23:59:59.000Z

80

Chapter 14: Chiller Evaluation Protocol. The Uniform Methods...  

Office of Environmental Management (EM)

energy from the rotating member to the vapor, followed by the conversion of this energy into a pressure rise. Centrifugal chillers transfer this kinetic energy using...

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Transient modeling and validation of lithium ion battery pack with air cooled thermal management system for electric vehicles  

Science Journals Connector (OSTI)

A transient numerical model of a lithium ion battery (LiB) pack with air cooled thermal management system is developed and validated for electric vehicle applications. In the battery model, the open circuit volta...

G. Y. Cho; J. W. Choi; J. H. Park; S. W. Cha

2014-08-01T23:59:59.000Z

82

Data Mining for Modeling Chiller Systems in Data Centers  

E-Print Network [OSTI]

Data Mining for Modeling Chiller Systems in Data Centers Debprakash Patnaik1 , Manish Marwah2 to the lack of "first principles" models of chiller systems. At the same time, they abound in data due into an actionable dynamic Bayesian network model of the system. This network is then used to explain observed system

83

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

84

Commercial absorption chiller models for evaluation of control strategies  

SciTech Connect (OSTI)

A steady-state computer simulation model of a direct fired double-effect water-lithium bromide absorption chiller in the parallel-flow configuration was developed from first principles. Unknown model parameters such as heat transfer coefficients were determined by matching the model`s calculated state points and coefficient of performance (COP) against nominal full-load operating data and COPs obtained from a manufacturer`s catalog. The model compares favorably with the manufacturer`s performance ratings for varying water circuit (chilled and cooling) temperatures at full load conditions and for chiller part-load performance. The model was used (1) to investigate the effect of varying the water circuit flow rates with the chiller load and (2) to optimize chiller part-load performance with respect to the distribution and flow of the weak solution.

Koeppel, E.A.; Klein, S.A.; Mitchell, J.W. [Univ. of Wisconsin, Madison, WI (United States). Solar Energy Lab.

1995-08-01T23:59:59.000Z

85

Realities of Chiller Plant Operation: Utility Impacts on Owner Operating  

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

Realities of Chiller Plant Operation: Utility Impacts on Owner Operating Realities of Chiller Plant Operation: Utility Impacts on Owner Operating Costs and Societal Environmental Issues Speaker(s): Don Aumann Date: March 21, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Satkartar K. Kinney Don Aumann, a Senior Consultant from BKi in Oakland, will present an overview of two projects he completed for the electric utility industry. The first, a case study evaluation of a hybrid chiller plant in Jefferson City, Missouri, demonstrates the importance of carefully evaluating the impact of utility rate structures on plant operating costs. The building owner, another engineering consultant, and the local utility representatives were confused by the rates and missed an opportunity to cut chiller-plant operating costs by about 20%, totaling $15,000 per year. In

86

Health Monitoring and Continuous Commissioning of Centrifugal Chiller Systems  

E-Print Network [OSTI]

1 HEALTH MONITORING AND CONTINUOUS COMMISSIONING OF CENTRIFUGAL CHILLER SYSTEMS Jingtan Cui and Shengwei Wang Department of Building Services Engineering, The Hong Kong Polytechnic University Summary: This paper presents strategies... of Comstock et al. (1999), Reddy et al. (2001) and Arthur et al. (2001). Examples of more recent research works in the investigations of optimal control of chiller systems include the works of Wang (2001), Massie (2002) and Chang (2004), etc. It is worth...

Cui, J.; Wang, S.

2004-01-01T23:59:59.000Z

87

Passive air cooling of liquid metal-cooled reactor with double vessel leak accommodation capability  

DOE Patents [OSTI]

A passive and inherent shutdown heat removal method with a backup air flow path which allows decay heat removal following a postulated double vessel leak event in a liquid metal-cooled nuclear reactor. The improved reactor design incorporates the following features: (1) isolation capability of the reactor cavity environment in the event that simultaneous leaks develop in both the reactor and containment vessels; (2) a reactor silo liner tank which insulates the concrete silo from the leaked sodium, thereby preserving the silo's structural integrity; and (3) a second, independent air cooling flow path via tubes submerged in the leaked sodium which will maintain shutdown heat removal after the normal flow path has been isolated.

Hunsbedt, Anstein (Los Gatos, CA); Boardman, Charles E. (Saratoga, CA)

1995-01-01T23:59:59.000Z

88

Determining the quality and quantity of heat produced by proton exchange membrane fuel cells with application to air-cooled stacks for combined heat and power  

E-Print Network [OSTI]

with application to air-cooled stacks for combined heat and power by Thomas Schmeister B.Sc., University to air-cooled stacks for combined heat and power by Thomas Schmeister B.Sc., University of Colorado, 1991 cells as a heat and electrical power source for residential combined heat and power (CHP

Victoria, University of

89

Parametric analysis of a double-effect steam absorption chiller  

Science Journals Connector (OSTI)

The development in the field of refrigeration and cooling systems based on absorption cycles has attained its own internal dynamic in the last decade. A major obstacle for developing model is the lack of available component specifications. These specifications are commonly proprietary of the chiller's manufacturers and normally the available information is not sufficient. This work presented a double-effect parallel-flow-type steam absorption chiller model based on thermodynamic and energy equations. The chiller studied is 1250 RT (Refrigeration Tons) using lithium bromide -water as working pair. The mathematical equations that govern the operation of the steam absorption chiller are developed and from the available design data the values of the overall heat transfer coefficient multiplied by the heat exchanger surface area and the characteristics of each component of the absorption chiller at the design point are calculated. For thermo physical and thermodynamic properties for lithium bromide-water solution set of computationally efficient formulations are used. The model gives the required information about temperature concentration and flow rate at each state point of the system. The model calculates the heat load at each component as well as the performance of the system.

Mojahid Sid Ahmed Mohammed Salih Ahmed; Syed Ihtsham Ul-Haq Gilani

2012-01-01T23:59:59.000Z

90

Comparative Study Between Air-Cooled and Water-Cooled Condensers of the Air-Conditioning Systems  

E-Print Network [OSTI]

consumptions. The cooling capacities for WC and AC systems were 373 and 278 tons-of- refrigeration, respectively. It was found that for the same cooling production, the peak power demand and the daily energy consumption of the WC system were 45 and 32% less...

Maheshwari, G. P.; Mulla Ali, A. A.

2004-01-01T23:59:59.000Z

91

Cooling air duct and screen arrangement for an air cooled engine  

SciTech Connect (OSTI)

This patent describes a cooling air duct and screen arrangement for an air cooled engine which includes an improved cooling air system for ensuring a supply of relatively clean air for ingestion by the cooling shroud, which consists of: a vertical transverse baffle mounted to the frame and fitting closely against a forward top portion of the shroud and having an edge shaped complementary to and disposed at least closely adjacent the hood. An air duct is mounted to the frame and has an upright rear wall seated against the front of the shroud in an area surrounding the inlet. The air duct further has an upright front wall and a connecting wall joining respective side and bottom edges of the front and rear walls and cooperating therewith to define an upwardly facing opening. A screen is located forwardly of the baffle and has a top and front joined by opposite sides with the top and opposite sides having rear edges mounted against the baffle and with the opposite sides and front having bottom edges engaged with the air duct about the upwardly facing opening wherein the screen is mounted solely to the baffle by connection means including a vertical guide means provided on the forward side of the baffle and flange means formed on the screen and being vertically slidably received in the guide means.

Hoch, J.J.; Stricker, D.K.

1986-03-04T23:59:59.000Z

92

Optimization of Fog Inlet Air Cooling System for Combined Cycle Power Plants using Genetic Algorithm  

Science Journals Connector (OSTI)

Abstract In this research paper, a comprehensive thermodynamic modeling of a combined cycle power plant is first conducted and the effects of gas turbine inlet fogging system on the first and second law efficiencies and net power outputs of combined cycle power plants are investigated. The combined cycle power plant (CCPP) considered for this study consist of a double pressure heat recovery steam generator (HRSG) to utilize the energy of exhaust leaving the gas turbine and produce superheated steam to generate electricity in the Rankine cycle. In order to enhance understanding of this research and come up with optimum performance assessment of the plant, a complete optimization is using a genetic algorithm conducted. In order to achieve this goal, a new objective function is defined for the system optimization including social cost of air pollution for the power generation systems. The objective function is based on the first law efficiency, energy cost and the external social cost of air pollution for an operational system. It is concluded that using inlet air cooling system for the CCPP system and its optimization results in an increase in the average output power, first and second law efficiencies by 17.24%, 3.6% and 3.5%, respectively, for three warm months of year.

Mehdi A. Ehyaei; Mojtaba Tahani; Pouria Ahmadi; M. Esfandiari

2014-01-01T23:59:59.000Z

93

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

94

A Numerical Model for the Dynamic Simulation of a Recirculation Single-Effect Absorption Chiller  

E-Print Network [OSTI]

A Numerical Model for the Dynamic Simulation of a Recirculation Single- Effect Absorption Chiller A dynamic model for the simulation of a new single-effect water/lithium bromide absorption chiller. Keywords: absorption; chiller; modelling; transient; water-lithium bromide; falling film hal-00713904

Paris-Sud XI, Université de

95

Triple-effect absorption chiller cycle: A step beyond double-effect cycles  

SciTech Connect (OSTI)

Many advanced'' absorption cycles have been proposed during the current century. Of the hundreds of absorption cycles which have been patented throughout the world, all commercially manufactured products for air conditioning buildings have been variations of just two basic absorption cycles: single-effect and condenser-coupled double-effect cycles. The relatively low cooling coefficients of performance (COPs) inherent in single-effect and double-effect cycles limits the economic applicability of absorption air conditioners (chillers) in the United States. A triple-effect absorption chiller cycle is discussed. This cycle uses two condensers and two absorbers to achieve the triple effect.'' Depending on the absorption fluids selected, this triple-effect cycle is predicted to improve cooling COPs by 18% to 60% compared with the equivalent double-effect cycle. This performance improvement is obtained without increasing the total amount of heat-transfer surface area needed for the heat exchangers. A comparison between the calculated performances of a double-effect cycle and a triple-effect cycle (both using ammonia-water (NH{sub 3}/H{sub 2}O) as the absorption fluid pair) is presented. The triple-effect cycle is predicted to have an 18% higher cooling COP (1.41 compared with 1.2 for a double-effect), lower pressure (47.70 atm (701 psi) instead of 68.05 atm (1000 psi)), significantly reduced pumping power (less than one-half that of the double-effect cycle), and potentially lower construction cost (33% less total heat exchange needed). Practical implications for this triple-effect cycle are discussed. 16 refs., 5 figs., 1 tab.

DeVault, R.C.

1990-01-01T23:59:59.000Z

96

Thermal investigation of lithium-ion battery module with different cell arrangement structures and forced air-cooling strategies  

Science Journals Connector (OSTI)

Abstract Thermal management needs to be carefully considered in the lithium-ion battery module design to guarantee the temperature of batteries in operation within a narrow optimal range. This article firstly explores the thermal performance of battery module under different cell arrangement structures, which includes: 1נ24, 3נ8 and 5נ5 arrays rectangular arrangement, 19 cells hexagonal arrangement and 28 cells circular arrangement. In addition, air-cooling strategies are also investigated by installing the fans in the different locations of the battery module to improve the temperature uniformity. Factors that influence the cooling capability of forced air cooling are discussed based on the simulations. The three-dimensional computational fluid dynamics (CFD) method and lumped model of single cell have been applied in the simulation. The temperature distributions of batteries are quantitatively described based on different module patterns, fan locations as well as inter-cell distance, and the conclusions are arrived as follows: when the fan locates on top of the module, the best cooling performance is achieved; the most desired structure with forced air cooling is cubic arrangement concerning the cooling effect and cost, while hexagonal structure is optimal when focus on the space utilization of battery module. Besides, the optimized inter-cell distance in battery module structure has been recommended.

Tao Wang; K.J. Tseng; Jiyun Zhao; Zhongbao Wei

2014-01-01T23:59:59.000Z

97

An approach for assessing the economics of sorption chillers  

SciTech Connect (OSTI)

Two methods are presented to optimize sorption chillers with respect to economics. To this end, the investment that is necessary for the heat exchangers is balanced with the achievable COP. The numerical tools available today allow for an exact calculation of thermodynamic processes. However, the thermophysical property data these calculations are based on are often not reliable. Moreover, the economic data that have to be taken into account are very rough guesses in most cases. Consequently, a detailed thermodynamic calculation often is too much effort if quick economic decisions have to be made. This paper shows how, based on the main irreversibilities of the process, quite strong economic statements can be made with limited effort. For detailed engineering and optimization, however, a sound cycle calculation is required. In this respect, an economic optimization can only be performed when all relevant parameters determining the process (e.g., pump flow rates and heat exchanger areas) are varied simultaneously while keeping constant the external temperatures of heat sources and sinks. The result of this parameter variation is the chiller COP, which is dependent on the overall heat exchanger area invested in the chiller. This result can be translated into running cost vs. first cost. Consequently, an economic optimum can be found. In most cases, only chillers that perform near the optimum are economically competitive.

Summerer, F. [Technische Univ. Muenchen, Garching (Germany). Physik Dept.; Ziegler, F.F. [ZAE Bayern, Garching/Munich (Germany)

1998-10-01T23:59:59.000Z

98

Covered Product Category: Water-Cooled Electric Chillers  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including water-cooled electric chillers, which is a FEMP-designated product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

99

Chiller condition monitoring using topological case-based modeling  

SciTech Connect (OSTI)

To increase energy efficiency and economy, commercial building projects now often utilize centralized, shared sources of heat such as district heating and cooling (DHC) systems. To maintain efficiency, precise monitoring and scheduling of maintenance for chillers and heat pumps is essential. Low-performance operation results in energy loss, while unnecessary maintenance is expensive and wasteful. Plant supervisors are responsible for scheduling and supervising maintenance. Modeling systems that assist in analyzing system deterioration are of great benefit for these tasks. Topological case-based modeling (TCBM) (Tsutsui et al. 1993; Tsutsui 1995) is an effective tool for chiller performance deterioration monitoring. This paper describes TCBM and its application to this task using recorded historical performance data.

Tsutsui, Hiroaki [Yamatake-Honeywell Co. Ltd., Yokohama (Japan). Advanced Technology Center; Kamimura, Kazuyuki [Yamatake-Honeywell Co. Ltd., Tokyo (Japan). Building Systems Div.

1996-11-01T23:59:59.000Z

100

Replacing Inefficient Equipment - An Engineering Analysis to Justify Purchasing A More Efficient Chiller  

E-Print Network [OSTI]

in Figures 4 and 5 respectively. Figure 4 shows the data pattern of the trended chiller tonnage versus time. The chiller tonnage was below 100 tons most of the time during the period of late October, 2002 to late March 2003 and was as high as 250 tons... during the summer. Demand use follows the same pattern as the tonnage since demand is a function of the cooling required and the efficiency of the chillers. During the period of middle October 2002 to late March 2003, the chiller demand...

Chen, H.; Deng, S.; Claridge, D. E.; Turner, W. D.; Bensouda, N.

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Transient effects on the performance of a residential solar absorption chiller  

SciTech Connect (OSTI)

The transient performance of a commercial residential 3 ton lithium-bromide/water absorption chiller is studied. Emphasis was placed on separating the chiller response from that of the entire test facility so that its transient response could solely be observed and quantified. It was found that the entire system time response and thermal capacitance has a major impact on performance degradation due to transient operation. Isolation of the absorption chiller from system effects showed time to steady state performance to be a linear function of steady state water supply temperatures. These findings summarized in computer algorithms were used to map the integrated performance of a 3 ton absorption chiller.

Guertin, J.M.; Wood, B.D.

1980-01-01T23:59:59.000Z

102

Innovative Approach to Chiller Replacement at Lafayette General Medical Center Located in Lafayette, Louisiana  

E-Print Network [OSTI]

+ Generator. This ECM is basically the same as ECM $7, except that in lieu of the new 500 ton enginedriven chiller, replacement would be 1 absorption chiller supplied with waste heat from a generator. $2.030.560 Project Budget $235,13 1 Annual Savings... + Generator. This ECM is basically the same as ECM $7, except that in lieu of the new 500 ton enginedriven chiller, replacement would be 1 absorption chiller supplied with waste heat from a generator. $2.030.560 Project Budget $235,13 1 Annual Savings...

Poche', J. M.; Broussard, J. P.

1998-01-01T23:59:59.000Z

103

Performance evaluation of an active solar cooling system utilizing low cost plastic collectors and an evaporatively-cooled absorption chiller. Final report  

SciTech Connect (OSTI)

During the summer of 1982, air conditioning in Solar House III at Colorado State University was provided by an evaporatively-cooled absorption chiller. The single-effect lithium bromide chiller provided by Arkla Industries is an experimental three-ton unit from which heat is rejected by direct evaporative cooling of the condenser and absorber walls, thereby eliminating the need for a separate cooling tower. Domestic hot water was also provided by use of a double-walled heat exchanger and 300-l (80-gal) hot water tank. For solar heat supply to the cooling system, plastic thin film collectors developed by Brookhaven National Laboratory were installed on the roof of Solar House III. Failure to withstand stagnation temperatures forced replacement of solar energy with an electric heat source. Objectives of the project were: (1) evaluation of system performance over the course of one cooling season in Fort collins, Colorado; (2) optimization of system operation and control; (3) development of a TRNSYS compatible model of the chiller; and (4) determination of cooling system performance in several US climates by use of the model.

Lof, G.O.G.; Westhoff, M.A.; Karaki, S.

1984-02-01T23:59:59.000Z

104

Energy Management of Chiller Plant for Improved Efficiency and Operation  

E-Print Network [OSTI]

-l"'OFF VAHE POS ITI ot.. CHILLER LOAD Cot~P CUF~REt-lT EVAP PSIA REF TEt~P Cot?m PSIA cOtm TEt~P OIL PSIG OIL TE~lP COI?1D SUP TEt~P col?m F.:ET TEMP 513.7 41.2 50.3 40LP OFF ~ 1ILP OH 2ILP Ot.. 3ILP 011 4ILP ot-J 51.5 3CHIL STOP 4...

Alexander, D. P.; Rice, L. S.

105

Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Drive Chillers  

E-Print Network [OSTI]

LBNL-58636 Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable Efficient Cleanrooms Efficient HVAC Water Systems: Variable-Speed-Drive Chillers Tengfang Xu Contents HVAC.................................................................................................................................... 6 #12;HVAC Water Systems Variable-Speed-Drive Chillers Summary Cleanroom energy benchmarking data

106

Air-Cooled Stack Freeze Tolerance - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

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

6 6 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Dave Hancock Plug Power Inc. 968 Albany Shaker Rd Latham, NY 12110 Phone: (518) 782-7700 Email: david_hancock@plugpower.com DOE Managers HQ: Donna Ho Phone: (202) 586-8000 Email: Donna.Ho@ee.doe.gov GO: Reginald Tyler Phone: (720) 356-1805 Email: Reginald.Tyler@go.doe.gov Technical Advisor Walt Podolski Phone: (630) 252-7558 Email: podolski@anl.gov Contract Number: DE-EE0000473 Subcontractor: Ballard Power Systems, Burnaby, British Columbia, Canada Project Start Date: June 1, 2009 Project End Date: November 15, 2011 Fiscal Year (FY) 2012 Objectives Advance the state of the art in technology for air-cooled * proton exchange membrane (PEM) fuel cell stacks and related GenDrive(tm) material handling application fuel

107

News From the D.C. Office: Integrated Chiller Retrofits-Sharing Experience  

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

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Integrated Chiller Retrofits: Sharing Experience Makes "Cool Sense" A recent issue of the Center for Building Science News [Spring 1996, p.2] described the opportunities for significant energy savings from replacing older, inefficient chillers. These savings can be increased greatly if building owners and managers approach the chiller replacement not just as a requirement, but also as an opportunity-that of investing in other energy-saving measures that reduce cooling loads and lead to the downsizing of the chiller and related equipment. The Air-Conditioning and Refrigeration Institute estimates that 80,000 existing chillers using CFC refrigerants need to be replaced or converted to use HCFC or HFC refrigerants. Of these, about 20,000 will be replaced or

108

Design and Analysis of High-Performance Air-Cooled Heat Exchanger with an Integrated Capillary-Pumped Loop Heat Pipe  

E-Print Network [OSTI]

We report the design and analysis of a high-power air-cooled heat exchanger capable of dissipating over 1000 W with 33 W of input electrical power and an overall thermal resistance of less than 0.05 K/W. The novelty of the ...

McCarthy, Matthew

109

Heavy absorption chillers: The Tortoise technology that can win  

SciTech Connect (OSTI)

Why has Absorption taken over 200 years to become a viable technology and secondarily what is the long term potential for heavy absorption technology? A third interesting question may be as some knowledgeable people in the North America industry have professed, is there a Window of Opportunity which was presented by the electric vapor compressor refrigerant issue which will be the last chance for absorption? Of course we know that absorption is not a new technology in 1994. It is however being rediscovered in many parts of the world by specifiers and engineers who are otherwise totally familiar with HVAC systems technology. As has been well documented in Japan, absorption heavy systems have been dominant for some time to the point that over 90% of the new units installed in the heavy systems category are absorption. Further by now 50% of the installed heavy systems tonnage in the country are absorption chillers. It did not take the electric vapor compressor refrigerant issue to make this huge market for absorption and there aren`t too many people in the HVAC business in Japan that view absorption as the {open_quotes}Tortoise technology.{close_quotes} If we only understood what the drivers were in Japan to create this absorption market then perhaps we could understand and possibly predict the long term potential for the technology in other markets of the world. We could actually go to work and look for markets that mirror the prevailing conditions in Japan. There will be those amongst us who will tell you that Japan is a unique market in almost every product category and most certainly with respect to heavy chiller systems.

Irwin, F.E.

1995-06-01T23:59:59.000Z

110

Prediction of thermal behaviors of an air-cooled lithium-ion battery system for hybrid electric vehicles  

Science Journals Connector (OSTI)

Abstract Thermal management has been one of the major issues in developing a lithium-ion (Li-ion) hybrid electric vehicle (HEV) battery system since the Li-ion battery is vulnerable to excessive heat load under abnormal or severe operational conditions. In this work, in order to design a suitable thermal management system, a simple modeling methodology describing thermal behavior of an air-cooled Li-ion battery system was proposed from vehicle components designer's point of view. A proposed mathematical model was constructed based on the battery's electrical and mechanical properties. Also, validation test results for the Li-ion battery system were presented. A pulse current duty and an adjusted US06 current cycle for a two-mode HEV system were used to validate the accuracy of the model prediction. Results showed that the present model can give good estimations for simulating convective heat transfer cooling during battery operation. The developed thermal model is useful in structuring the flow system and determining the appropriate cooling capacity for a specified design prerequisite of the battery system.

Yong Seok Choi; Dal Mo Kang

2014-01-01T23:59:59.000Z

111

A neuro-computational approach to chiller fault identification and isolation  

E-Print Network [OSTI]

. The characteristics of the chiller are identified by measuring certain parameters. Once the parameters are identified, the system boundaries are established, with certain parameters tainted by faults being isolated from the input parameters and, in turn, being derived...

Prabhu, Rahul Srinivas

2012-06-07T23:59:59.000Z

112

Evaluation of Transient Behavior of a Single-Effect Absorption Chiller  

Science Journals Connector (OSTI)

This paper deals with a lumped-parameter dynamic simulation of a single-effect LiBrH2O absorption chiller. In the majority previous studies, thermodynamic...2O solution were taken from some approximate relations...

Aghil Iranmanesh; Mozaffar Ali Mehrabian

2014-01-01T23:59:59.000Z

113

Investigation of the part-load performance of an absorption chiller  

SciTech Connect (OSTI)

An experimental investigation designed to determine the part-load performance of an ammonia-water absorption water chiller is described. The steady-state and cyclic performance of the chiller were measured under controlled conditions in an environmental chamber. Two valves were installed in the chiller to separate high- and low-pressure regions during off times, and insulation was applied to the chiller components. By these measures, losses due to cyclic operation were reduced by over 50%, resulting in a 6% to 7% increase in the calculated seasonal performance factor for typical northern and southern climates in the United States. The use of the valves eliminated the need of the ''spindown'' period, thereby reducing the consumption of parasitic electrical energy.

Radermacher, R.; Didion, D.A.; Klein, S.A.

1983-01-01T23:59:59.000Z

114

Dynamic model for small-capacity ammonia-water absorption chiller.  

E-Print Network [OSTI]

??Optimization of the performance of absorption systems during transient operations such as start-up and shut-down is particularly important for small-capacity chillers and heat pumps to (more)

Viswanathan, Vinodh Kumar

2013-01-01T23:59:59.000Z

115

Development of a gas engine-driven chiller. Annual report, January 1988-November 1988  

SciTech Connect (OSTI)

The report covers the third and final year of activity in a program to develop a natural gas engine-driven chiller with a nominal capacity of 150 tons. During the period covered by the report the field testing of six chillers continued, and a seventh and the final field test chiller was installed and started (April 1988). Field test hours for the period totalled 17,299, bringing the total field test hours to 24,247. The reliability and serviceability of the chiller have met expectations and have proven to be within the bounds of acceptability for this type of equipment. A ton-hour weighted coefficient of performance of 1.26 was obtained for the year.

Koplow, M.; Morgan, J.

1989-10-01T23:59:59.000Z

116

Design Considerations, Installation and Operation of the Two-Stage Parallel Flow Absorption Chiller  

E-Print Network [OSTI]

This presentation describes the actual design consideration and field operation experience of two-stage parallel flow absorption chillers. The applications include new construction, rehabilitation of old HVAC systems, cogeneration, and industrial...

Hufford, P. E.

1984-01-01T23:59:59.000Z

117

Cost reductions in absorption chillers. Final report, June 1984-May 1985  

SciTech Connect (OSTI)

Absorption chillers have great difficulty competing with the electric-driven compression alternative, due in part to modest operating efficiencies and largely to high first costs. This project is an assessment of the possibility of lowering the costs of absorption chillers dramatically by the use of low material intensity in the design of a new generation of these machines. Breakeven costs for absorption chillers, their heat exchangers and heat exchanger materials were established which will allow commercial success. Polymeric and metallic materials appropriate to particular components and which meet the cost goals were identified. A subset of these materials were tested and ordered by success in tolerating conditions and materials found in absorption chiller applications. Conceptual designs which indicate the practicality of the low material intensity approach were developed. The work reported here indicates that there is a high probability that this apporach will be successful.

Leigh, R.W.

1986-05-01T23:59:59.000Z

118

A Control Scheme of Enhanced Reliability for Multiple Chiller Plants Using Mergerd Building Cooling Load Measurements  

E-Print Network [OSTI]

of the Eighth International Conference for Enhanced Building Operations, Berlin, Germany, October 20-22, 2008 much on the accuracy of the chiller model. Measurement accuracy and reliability are essential for the accuracy and reliability of chiller sequencing... Central Chilling Plant Monitoring and control Figure 1. Framework of enhancing building cooling load measurements using data fusion 2 ESL-IC-08-10-31 Proceedings of the Eighth International Conference for Enhanced Building Operations, Berlin, Germany...

Wang, S.; Sun, Y.; Huang, G.; Zhu, N.

119

Nonequilibrium sulfur capture and retention in an air cooled slagging coal combustor. Quarterly technical progress report, 1996  

SciTech Connect (OSTI)

The objective of this 24 month project is to determine the degree of sulfur retention in slag in a full scale cyclone coal combustor with sulfur capture by calcium oxide sorbent injection into the combustor. This sulfur capture process consists of two steps: Capture of sulfur with calcined calcium oxide followed by impact of the reacted sulfur-calcium particles on the liquid slag lining the combustor. The sulfur bearing slag must be removed within several minutes from the combustor to prevent re-evolution of the sulfur from the slag. To accomplish this requires slag mass flow rates in the range of several 100 lb/hr. To study this two step process in the combustor, two groups of tests are being implemented. In the first group, calcium sulfate in the form of gypsum, or plaster of Paris, was injected in the combustor to determine sulfur evolution from slag. In the second group, the entire process is tested with limestone and/or calcium hydrate injected into the combustor. This entire effort consists of a series of up to 16 parametric tests in a 20 MMtu/hr slagging, air cooled, cyclone combustor. During the present quarterly reporting period ending September 30,1996, three tests in this project were implemented, bringing the total tests to 5. In addition, a total of 10 test days were completed during this quarter on the parallel project that utilizes the same 20 MMtu/hr combustor. The results of that project, especially those related to improved slagging performance, have a direct bearing on this project in assuring proper operation at the high slag flow rates that may be necessary to achieve high sulfur retention in slag.

Zauderer, B.

1996-11-01T23:59:59.000Z

120

Cyclic steady state performance of adsorption chiller with low regeneration temperature zeolite  

SciTech Connect (OSTI)

Adsorption chillers are capable of utilizing inexpensive or free low grade thermal energy such as waste heat and concentrated solar thermal energy. Recently developed low regeneration temperature working pairs allow adsorption chillers to be driven by even lower temperature sources such as engine coolant and flat plate solar collectors. In this work, synthetic zeolite/water was implemented into a 3kW adsorption chiller test facility driven by hot water at 70 C. The zeolite was coated onto two fin-and-tube heat exchangers, with heat recovery employed between the two. Cyclic steady state parametric studies were experimentally conducted to evaluate the chiller's performance, resulting in a cooling coefficient of performance (COP) ranging from 0.1 to 0.6 at different operating conditions. Its performance was compared with published values for other low regeneration temperature working pairs. The physical limitations of the synthetic zeolite revealed by parametric study results were then discussed. A novel operating control strategy was proposed based on the unique characteristics of synthetic zeolite. In addition, a physics-based COP prediction model was derived to predict the performance of the chiller under equilibrium loading, and was validated by the experiment results. This analytical expression can be used to estimate the cyclic steady state performance for future studies.

Qian, Mr. Suxin [University of Maryland, College Park; Gluesenkamp, Kyle R [ORNL; Hwang, Dr. Yunho [University of Maryland, College Park; Radermacher, Reinhard [University of Maryland, College Park; Chun, Mr. Ho-Hwan [University of Maryland, College Park

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Institutional project summary University of Redlands direct fired gas absorption chiller system  

SciTech Connect (OSTI)

The University of Redlands, located in the California Inland Empire City of Redlands supplies six campus building with chilled and hot water for cooling and space heating from a centrally located Mechanical Center. The University was interested in lowering chilled water production costs and eliminating Ozone depleting chloroflourocarbon (CFC) refrigerants in addition to adding chiller capacity for future building to be added to the central plant piping {open_quotes}loop{close_quotes}. After initially providing a feasibility study of chiller addition alternatives and annual hourly load models, GRT & Associates, Inc. (GRT) provided design engineering for the installation of a 500 Ton direct gas fired absorption chiller addition to the University of Redland`s mechanical center. Based on the feasibility study and energy consumption tests done after the new absorption chiller was added, the university estimates annual energy cost saving versus the existing electric chiller is approximately $65,000 per year. Using actual construction costs, the simple before tax payback period for the project is six years.

Tanner, G.R.

1996-05-01T23:59:59.000Z

122

Performance of a double-effect absorption chiller driven by ICPC solar collectors  

SciTech Connect (OSTI)

This paper presents experimental data and analytical results describing the performance of a 70 kW (20 ton), water-fired, double-effect absorption chiller. The chiller is driven by a 106 m{sup 2} array of integrated compound parabolic concentrator (ICPC) solar collectors. For this project, an existing gas-fired chiller was modified to operate on hot water. The water was heated by an array of 336 evacuated ICPC tubes. Each tube has an effective area of 0.317 m{sup 2}. The chiller and collector array are part of a complete solar HVAC system that provides air conditioning and space heating for a 743 m{sup 2} (8,000 ft{sup 2}) commercial building in Sacramento, CA. The other components of the HVAC system are a high temperature storage tank, a cooling tower, a gas-fired back-up boiler and five 14 kW (4 ton) cooling/heating fan coil units. The experimental data are used to determine; (1) the efficiency of the collectors; (2) the coefficient of performance of the chiller; and (3) the overall energy balance on the system. Computer models have also been developed to predict the performance and to optimize the design and operating characteristics of the HVAC system.

Bergquam, J.B.; Duff, W.S.; Brezner, J.M.; Henkel, E.T.; Winston, R.; O'Gallagher, J.; Sethi, P.

1999-07-01T23:59:59.000Z

123

LiCl dehumidifier/LiBr absorption chiller hybrid air conditioning system with energy recovery  

SciTech Connect (OSTI)

This invention relates to a hybrid air conditioning system that combines a solar powered LiCl dehumidifier with a LiBr absorption chiller. The desiccant dehumidifier removes the latent load by absorbing moisture from the air, and the sensible load is removed by the absorption chiller. The desiccant dehumidifier is coupled to a regenerator and the desiccant in the regenerator is heated by solar heated hot water to drive the moisture therefrom before being fed back to the dehumidifier. The heat of vaporization expended in the desiccant regenerator is recovered and used to partially preheat the driving fluid of the absorption chiller, thus substantially improving the overall COP of the hybrid system.

Ko, S.M.

1980-06-03T23:59:59.000Z

124

LiCl dehumidifier LiBr absorption chiller hybrid air conditioning system with energy recovery  

SciTech Connect (OSTI)

This invention relates to a hybrid air conditioning system that combines a solar powered LiCl dehumidifier with a LiBr absorption chiller. The desiccant dehumidifier removes the latent load by absorbing moisture from the air, and the sensible load is removed by the absorption chiller. The desiccant dehumidifier is coupled to a regenerator and the desiccant in the regenerator is heated by solar heated hot water to drive the moisture therefrom before being fed back to the dehumidifier. The heat of vaporization expended in the desiccant regenerator is recovered and used to partially preheat the driving fluid of the absorption chiller, thus substantially improving the overall COP of the hybrid system. 4 figs.

Ko, S.M.

1980-06-03T23:59:59.000Z

125

Effect of load-sharing operation strategy on the aggregate performance of existed multiple-chiller systems  

Science Journals Connector (OSTI)

Abstract This paper examines the effect of load-sharing operation strategies on the aggregate performance for existing multiple-chiller system under different partial loads and environmental conditions. The various tested load-sharing operation strategies obtain aggregate performance from 1.64 to 2.18 during the day hours and from 1.06 to 1.41 for the full day indicating significant effect of the operation strategies on the aggregate performance. The conventional (same part load ratio) strategies attain aggregate performance that is lower than the best strategy by 2233%. At very low system partial load, the performance of the multiple-chiller system falls to less than quarter its value at large load whereas the performance of individual chiller drops to about one sixth of its large load value. The load sharing strategy is influenced by many parameters such as the condition of the chillers and compressors, the piping arrangement, and the heat loss from the chilled water piping where these parameters may overwhelm the individual chiller performance. Accordingly, the load-sharing operation strategy may vary from case to another and should be periodically examined to verify proper system operation, rectify the existing chiller performance and identify chiller faults. Therefore, the need for maintenance can be predicted and the standby chiller may be eliminated.

Hosny Z. Abou-Ziyan; Ali F. Alajmi

2014-01-01T23:59:59.000Z

126

A Fluidized Bed Chiller: A New Approach in Making Slush-Ice  

E-Print Network [OSTI]

of the tubes of the chiller as a thin liquid film. Vapour and liquid are separated in a vessel and recirculated. 26 status of method 5: prototype tested; demonstration plant under construction. Severe setback for this method is that preferred refrigerant.... For this demonstration plant, the refrigerant is evaporating ammonia ning down the outside of the tubes of the chiller as a thin liquid film. Vapour and liquid are separated in a vessel and recirculated. ESL-IE-91-06-05 Proceedings from the 13th National Industrial...

Klaren, D. G.; Van Der Meer, J. S.

127

Absorption chiller optimization and integration for cogeneration and engine-chiller systems. Phase 1 - design. Topical report, April 1985-July 1986  

SciTech Connect (OSTI)

A market study indicates a significant market potential for small commercial cogeneration (50-500 kW) over the next 20 years. The potential exists for 1500 installations per year, 80% of those would be a system composed of Engine-Generator and Heat Recovery Unit with the remainder requiring the addition of an Absorption Chiller. A preliminary design for an advanced Heat Recovery Unit (HRU) was completed. The unit incorporates the capability of supplementary firing of the exhaust gas from the new generation of natural gas fired lean burn reciprocating engines being developed for cogeneration applications. This gives the Heat Recovery Unit greater flexibility in following the thermal load requirements of the building. An applications and design criteria analysis indicated that this was a significant feature for the HRU as it can replace a standard auxiliary boiler thus affording significant savings to the building owner. A design for an advanced absorption chiller was reached which is 15% lower in cost yet 9% more efficient than current off-the-shelf units. A packaged cogeneration system cost and design analysis indicates that a nominal 254 kW cogeneration system incorporating advanced components and packaging concepts can achieve a selling price of less than $880/kW and $700/kW with and without an absorption chiller.

Kubasco, A.J.

1986-07-01T23:59:59.000Z

128

Evaluation of HFC-245ca for commercial use in low pressure chillers. Final report, Volume I  

SciTech Connect (OSTI)

Federal regulations banned the production of CFC-11 on January 1, 1996. HCFC-123, the only commercial alternative, will be limited to service applications after January 1, 2020 and will be eliminated from production on January 1, 2030. HFC-245ca has been identified as a potential replacement for CFC-11 in retrofit applications and for HCFC-123 in new chillers, but the marginal flammability of HFC-245ca is a major obstacle to its commercial use as a refrigerant in the United States. This report assesses the commercial viability of HFC-245ca based on its experimental performance in a direct drive low pressure centrifugal chiller exclusive of its flammability characteristics. Three different impeller diameters were tested in the chiller, with all impellers having identical discharge blade angles. Experimental work included tests in a 200 ton 3 stage direct drive chiller with 3 impeller sets properly sized for each of three refrigerants, CFC-11, HCFC-123, and HFC-245ca. The commercial viability assessment focused on both retrofit and new product performance and cost.

Keuper, E.F. [Trane Co., LaCrosse, WI (United States)] [Trane Co., LaCrosse, WI (United States)

1996-03-01T23:59:59.000Z

129

Cycle simulation of the low-temperature triple-effect absorption chiller with vapor compression unit  

SciTech Connect (OSTI)

The construction of a triple-effect absorption chiller machine using the lithium bromide-water solution as a working fluid is strongly limited by corrosion problems caused by the high generator temperature. In this work, three new cycles having the additional vapor compression units were suggested in order to lower the generator temperature of a triple-effect absorption chiller. Each new cycle has one compressor located at the different position which was used to elevate the pressure of the refrigerant vapor. Computer simulations were carried out in order to examine both the basic triple-effect cycle and three new cycles. All types of triple-effect absorption chiller cycles were found to be able to lower the temperature of high-temperature generator to the more favorable operation range. The COPs of three cycles calculated by considering the additional compressor works showed a small level of decrease or increase compared with that of the basic triple-effect cycle. Consequently, a low-temperature triple-effect absorption chiller can be possibly constructed by adapting one of three new cycles. A great advantage of these new cycles over the basic one is that the conventionally used lithium bromide-water solution can be successfully used as a working fluid without the danger of corrosion.

Kim, J.S.; Lee, H.

1999-07-01T23:59:59.000Z

130

Case Study Walnut Hill United Methodist Church - Dallas, Texas, Chiller Replacement Analysis  

E-Print Network [OSTI]

tons of gas-fired double-effect absorption chillers. This case study will show the original HVAC operation cost analysis and compare it to the present day operation costs and it will describe how unexpected changes occurred that caused the initial...

Phillips, J.

1998-01-01T23:59:59.000Z

131

Development of a 5 kW Cooling Capacity Ammonia-water Absorption Chiller for Solar Cooling Applications  

Science Journals Connector (OSTI)

The development of a small capacity absorption chiller and the numerical and experimental results are presented in this paper. The prototype is a thermally driven ammonia-water absorption chiller of 5kW cooling capacity for solar cooling applications. The chiller was developed in an industrial perspective with a goal of overall compactness and using commercially available components. In order to characterize various component technologies and different optimization components, the prototype is monitored with temperature, pressure and mass flow rate accurate sensors. The resulting chiller, characterized by a reduced load in ammonia-water solution and the use of brazed plate heat exchanger, has shown good performance during the preliminary tests. A comparison with the expected numerical results is given.

Franois Boudhenn; Hlne Demasles; Jol Wyttenbach; Xavier Jobard; David Chze; Philippe Papillon

2012-01-01T23:59:59.000Z

132

Two (2) 175 Ton (350 Tons total) Chiller Geothermal Heat Pumps for recently commissioned LEED Platinum Building  

Broader source: Energy.gov [DOE]

This project will operate; collect data; and market the energy savings and capital costs of a recently commissioned chiller geothermal heat pump project to promote the wide-spread adoption of this mature technology.

133

Development of a Low-Lift Chiller Controller and Simplified Precooling Control Algorithm - Final Report  

SciTech Connect (OSTI)

KGS Buildings LLC (KGS) and Pacific Northwest National Laboratory (PNNL) have developed a simplified control algorithm and prototype low-lift chiller controller suitable for model-predictive control in a demonstration project of low-lift cooling. Low-lift cooling is a highly efficient cooling strategy conceived to enable low or net-zero energy buildings. A low-lift cooling system consists of a high efficiency low-lift chiller, radiant cooling, thermal storage, and model-predictive control to pre-cool thermal storage overnight on an optimal cooling rate trajectory. We call the properly integrated and controlled combination of these elements a low-lift cooling system (LLCS). This document is the final report for that project.

Gayeski, N.; Armstrong, Peter; Alvira, M.; Gagne, J.; Katipamula, Srinivas

2011-11-30T23:59:59.000Z

134

Small-Scale Industrial Cogeneration: Design Using Reciprocating Engines and Absorption Chillers  

E-Print Network [OSTI]

SMALL-SCALE INDUSTRIAL COGENERATION: DESIGN USING RECIPROCATING ENGINES AND ABSORPTION CHILLER Joseph R. Wagner Mechanical Technology Incorporated Latham, ABSTRACT This paper describes a packaged cogeneration system designed for light... industrial applications (i.e., situations where a user wants a maximum of 1 MW of cogenerated electricity). The design employs reci procating engines fueled with natural gas or liquid fuels. Waste heat from the engine exhaust and jacket water is used...

Wagner, J. R.

135

Evaluation of potential performance additives for the advanced lithium bromide chiller  

SciTech Connect (OSTI)

The effectiveness and stability of potential heat-and-mass transfer (performance) additives for an advanced lithium bromide (LiBr) chiller were evaluated in a series of experimental studies. These studies of additive effectiveness and stability were necessary because many currently used performance additives decompose at the high generator temperatures (220{degrees}C to 260{degrees}C) desired for this particular advanced LiBr chiller. For example, one common performance additive, 2-ethyl-l-hexanol (2EH), reacts with the corrosion inhibitor, lithium chromate (Li{sub 2}CrO{sub 4}), even at moderate generator temperatures ({ge}180{degrees}C). These stability problems can be mitigated by using less reactive corrosion inhibitors such as lithium molybdate (Li{sub 2}MoO{sub 4}) and by using more stable performance additives such as 1-heptanol (HEP) or 1H,1H,7H-dodecafluoro-1-heptanol (DFH). There seems to be a trade-off between additive stability and effectiveness: the most effective performance additives are not the most stable additives. These studies indicate that HEP or DFH may be effective additives in the advanced LiBr chiller if Li{sub 2}MoO{sub 4} is used as a corrosion inhibitor.

Reiner, R.H.; Del Cul, W.; Perez-Blanco, H.; Ally, M.R.; Zaltash, A.

1991-04-01T23:59:59.000Z

136

Charged Condensation  

E-Print Network [OSTI]

We consider Bose-Einstein condensation of massive electrically charged scalars in a uniform background of charged fermions. We focus on the case when the scalar condensate screens the background charge, while the net charge of the system resides on its boundary surface. A distinctive signature of this substance is that the photon acquires a Lorentz-violating mass in the bulk of the condensate. Due to this mass, the transverse and longitudinal gauge modes propagate with different group velocities. We give qualitative arguments that at high enough densities and low temperatures a charged system of electrons and helium-4 nuclei, if held together by laboratory devices or by force of gravity, can form such a substance. We briefly discuss possible manifestations of the charged condensate in compact astrophysical objects.

Gregory Gabadadze; Rachel A. Rosen

2007-08-24T23:59:59.000Z

137

Thermal management optimization of an air-cooled Li-ion battery module using pin-fin heat sinks for hybrid electric vehicles  

Science Journals Connector (OSTI)

Abstract Three dimensional transient thermal analysis of an air-cooled module that contains prismatic Li-ion cells next to a special kind of aluminum pin fin heat sink whose heights of pin fins increase linearly through the width of the channel in air flow direction was studied for thermal management of Lithium-ion battery pack. The effects of pin fins arrangements, discharge rates, inlet air flow velocities, and inlet air temperatures on the battery were investigated. The results showed that despite of heat sinks with uniform pin fin heights that increase the standard deviation of the temperature field, using this kind of pin fin heat sink compare to the heat sink without pin fins not only decreases the bulk temperature inside the battery, but also decreases the standard deviation of the temperature field inside the battery as well. Increasing the inlet air temperature leads to decreasing the standard deviation of the temperature field while increases the maximum temperature of the battery. Furthermore, increasing the inlet air velocity first increases the standard deviation of the temperature field till reaches to the maximum point, and after that decreases. Also, increasing the inlet air velocity leads to decrease in the maximum temperature of the battery.

Shahabeddin K. Mohammadian; Yuwen Zhang

2015-01-01T23:59:59.000Z

138

Assessment and economic analysis of the MOD III Stirling-engine driven chiller system. Final report, October 1989-July 1990  

SciTech Connect (OSTI)

The Stirling engine is an inherently clean and efficient engine. With the requirements for environmentally benign emissions and high energy efficiency, the Stirling engine is an attractive alternative to both internal combustion (IC) engines and electric motors. The study evaluated a Stirling-engine-driven chiller package. Technically, the Stirling engine is a good selection as a compressor drive, with inherently low vibrations, quiet operation, long life, and low maintenance. Exhaust emissions are below the projected 1995 stringent California standards. Economically, the Stirling-engine-driven chiller is a viable alternative to both IV-engine and electric-driven chillers, trading off slightly higher installed cost against lower total operating expenses. The penetration of a small portion of the projected near-term stationary engine market opportunity will provide the volume production basis to achieve competitively priced engines.

Moryl, J.

1990-07-01T23:59:59.000Z

139

Operation of a low temperature absorption chiller at rating point and at reduced evaporator temperature. Final report  

SciTech Connect (OSTI)

The returned SAM 015 (fifteen ton Solar Absorption Machine) chiller was given a cursory visual inspection, some obvious problems were remedied, and then it was placed on a test stand to get a measure of dirty performance. It was then given a standard acid clean, the water side of the tubes was brushed clean, and then the machine was retested. The before and after cleaning data were compared to equivalent data taken before the machine was shipped. The second part of our work statement was to experimentally demonstrate the technical feasibility of operating the chiller at evaporator temperatures below O/sup 0/C (32/sup 0/F) and identify any operational problems.

Best, R.; Biermann, W.; Reimann, R.

1985-01-01T23:59:59.000Z

140

Avaliao econmica da substituio de um chiller de compresso por um chiller de absoro alimentado por coletores solares com base em medies em um prdio da Chesf em Recife.  

E-Print Network [OSTI]

??The perspective of rising costs for electrical energy and fossil fuels, together with more efficient solar colectors and absorption chillers, stimulates for the retaking of (more)

Ney Guilherme Leal de Macedo

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Exergy analysis of a novel air-cooled non-adiabatic absorption refrigeration cycle with NH3NaSCN and NH3LiNO3 refrigerant solutions  

Science Journals Connector (OSTI)

Abstract This paper presents a methodology of exergy analysis for ammonia-lithium nitrate and ammonia-sodium thiocyanate absorption refrigeration cycle which applies a novel air-cooled type non-adiabatic absorber to improve both the coefficient of performance and exegetic efficiency of the system under air cooling condition. A modified entropy calculation method for NH3/NaSCN and NH3/LiNO3 solutions is presented in this literature and different results are obtained comparing to previous research. In addition to the variation of solution temperature and pressure from specific working state to the reference state, the variation of solution concentration, which was always neglected by previous researchers in ammonia/salt solution exergy calculation, has been taken into account while analyzing the least potential of ammonia/salt solution for doing useful work, and a corresponding approach for specific exergy calculation is presented. The effects of generator temperature, absorber outlet temperature, absorber efficiency and other system parameters on system exergetic efficiency have been discussed in this study. Analysis results indicate that relatively high system performance can be obtained by air-cooled type ammonia/salt absorption refrigeration cycles when non-adiabatic absorbers are applied in these systems.

Dehua Cai; Guogeng He; Qiqi Tian; Weier Tang

2014-01-01T23:59:59.000Z

142

A fast chiller power demand response control strategy for buildings connected to smart grid  

Science Journals Connector (OSTI)

Abstract With the increasing integration of renewable energies into electrical grids, power imbalance has become one of the most critical issues in grid operations. The end-users at power demand side can actually make use of their demand reduction potentials to contribute to the grid power balance. Conventional demand responses of end-users can provide considerable power demand reductions, but the demand responses are usually subject to significant delay and cannot fulfill the needs of grid real time operation. In this paper, a fast chiller power demand response control strategy for commercial buildings is therefore proposed which facilitates buildings to act as grid operating reserves by providing rapid demand responses to grid request within minutes. However, simply shutting down some essential operating chillers would result in disordered chilled water flow distribution and uneven indoor thermal comfort degradation. This strategy has therefore taken essential measures to solve such problems effectively. Simulation case studies are conducted to investigate the operation dynamics and energy performance of HVAC systems in the demand response events controlled by the strategy. Results show that fast and significant power demand reductions can be achieved without sacrificing the thermal comfort too much.

Xue Xue; Shengwei Wang; Chengchu Yan; Borui Cui

2015-01-01T23:59:59.000Z

143

Air Cooling R&D  

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

operation condition - Conservative power factor * Applied 1.5 safety factor to MOSFET heat loss for heat load target * Used heat load target for all devices Generating Power...

144

Optimal Operation Scheme for a Cogeneration System Promoted from an Emergency Standby System Combined with Absorption Chiller  

Science Journals Connector (OSTI)

A novel optimal operation scheme for a cogeneration system that is promoted from an emergency standby system combined with absorption chiller is introduced. The fuel cost, Time-of-use (TOU) tariff and various operational constrains are taken into account ... Keywords: cogeneration system, Time-of-use tariff, optimal operation scheme

Shyi-Wen Wang

2010-12-01T23:59:59.000Z

145

Preconcentrator with high volume chiller for high vapor pressure particle detection  

SciTech Connect (OSTI)

Apparatus and method for collecting particles of both high and low vapor pressure target materials entrained in a large volume sample gas stream. Large volume active cooling provides a cold air supply which is mixed with the sample gas stream to reduce the vapor pressure of the particles. In embodiments, a chiller cools air from ambient conditions to 0-15.degree. C. with the volumetric flow rate of the cold air supply being at least equal to the volumetric flow rate of the sample gas stream. In further embodiments an adsorption media is heated in at least two stages, a first of which is below a threshold temperature at which decomposition products of the high vapor pressure particle are generated.

Linker, Kevin L

2013-10-22T23:59:59.000Z

146

Condensate system modelling in real time for a training power plant simulator  

Science Journals Connector (OSTI)

In this paper, the basis of the models of the condensate water and the air cooled condenser are presented. The models are part of a full scope simulator of a 450 MW combined cycle power plant. The simulator is executed in real time and is intended to be a support for the training of the operators of the Comisión Federal de Electricidad (the Mexican utility company). The simulator is presently in the final acceptance tests stage and is programmed to be in commercial operation in 2010. Here, are included a summary of the modelling methodology used to develop the referred models and the mathematical fundaments used to obtain the main equations. The tendencies of selected variables during a transient are displayed and analysed in order to probe the validity of the new generic models.

Yadira Mendoza-Alegría; Edgardo J. Roldán-Villasana

2011-01-01T23:59:59.000Z

147

Advanced cogeneration and absorption chillers potential for service to Navy bases. Final report  

SciTech Connect (OSTI)

The US military uses millions of Btu`s of thermal energy to heat, cool and deliver process thermal energy to buildings on military bases, much of which is transmitted through a pipeline system incorporating thousands of miles of pipe. Much of this pipeline system is in disrepair and is nearing the end of its useful life, and the boilers which supply it are old and often inefficient. In 1993, Brookhaven National Laboratory (BNL) proposed to SERDP a three-year effort to develop advanced systems of coupled diesel cogenerators and absorption chillers which would be particularly useful in providing a continuation of the services now provided by increasingly antiquated district systems. In mid-February, 1995, BNL learned that all subsequent funding for our program had been canceled. BNL staff continued to develop the Program Plan and to adhere to the requirements of the Execution Plan, but began to look for ways in which the work could be made relevant to Navy and DoD energy needs even without the extensive development plan formerly envisioned. The entire program was therefore re-oriented to look for ways in which small scale cogeneration and absorption chilling technologies, available through procurement rather than development, could provide some solutions to the problem of deteriorated district heating systems. The result is, we believe, a striking new approach to the provision of building services on military bases: in many cases, serious study should be made of the possibility that the old district heating system should be removed or abandoned, and small-scale cogenerators and absorption chillers should be installed in each building. In the remainder of this Summary, we develop the rationale behind this concept and summarize our findings concerning the conditions under which this course of action would be advisable and the economic benefits which will accrue if it is followed. The details are developed in the succeeding sections of the report.

Andrews, J.W.; Butcher, T.A.; Leigh, R.W.; McDonald, R.J.; Pierce, B.L.

1996-04-01T23:59:59.000Z

148

2014-11-25 Issuance: Energy Conservation Standards for Small, Large, and Very Large Air-cooled Commercial Package Air Conditioning and Heating Equipment; Extension of Public Comment Period  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register extension of the public comment period regarding energy conservation standards for small, large and very large air-cool commercial package air conditioning and heating equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency on November 25, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

149

2014-09-18 Issuance: Energy Conservation Standard for Small, Large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment; Notice of Proposed Rulemaking and Public Meeting  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register Notice of Proposed Rulemaking and Public Meeting regarding Energy Conservation Standards for Small, large, and Very Large Air-Cooled Commercial Package Air Conditioning and Heating Equipment, as issued by the Assistant Secretary for Energy Efficiency and Renewable Energy on September 18, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

150

A new absorption chiller to establish combined cold, heat, and power generation utilizing low-temperature heat  

SciTech Connect (OSTI)

Presently available absorption machines for air conditioning are driven with heat of a minimum of 80 C (176 F). A combination of the standard single-effect and a double-lift process has been identified as a new cycle that can use driving heat down to return temperatures of about 55 C (131 F) and permits temperature glides in generation of more than 30 K (54 F). Thus a larger cooling capacity can be produced from the same heat source compared to a single-effect chiller run with the same heat carrier supply temperature and mass flow. According to the estimated heat exchanger area, competitive machine costs for this new chiller can be expected. This single-effect/double-lift absorption chiller can be operated with waste heat from industrial processes, as well as with low-temperature heat (e.g., heat from solar collectors) as driving heat for air conditioning. The large temperature glide and the low return temperature especially fit the operating conditions in district heating networks during the summer. The cycle will be presented, followed by a discussion of suitable operating conditions.

Schweigler, C.J.; Riesch, P.; Demmel, S.; Alefeld, G. [ZAE Bayern, Garching/Muenchen (Germany)

1996-11-01T23:59:59.000Z

151

Commissioning of A Large Office Building in Texas - A Case Study  

E-Print Network [OSTI]

Control System) programming and operation, and the installation of automatic chiller isolation valves, in addition to calibration and repair of building VAV (Variable Air Volume) boxes. In the case study building, four air-cooled chillers and two chilled...

Deng, S.; Turner, W. D.; Liu, M.

2000-01-01T23:59:59.000Z

152

Analysis of IECC2003 Chiller Heat Recovery for Service Water Heating Requirement for New York State  

SciTech Connect (OSTI)

The state of New York asked the U.S. Department of Energy to evaluate the cost-effectiveness of the requirement for Heat Recovery for Service Water Heating that exists in the 2003 International Energy Conservation Code to determine whether this requirement should be adopted into the New York State Energy Code. A typical hotel application that would trigger this requirement was examined using whole building simulation software to generate baseline annual chiller and service hot water loads, and a spreadsheet was used to examine the energy savings potential for heat recovery using hourly load files from the simulation. An example application meeting the code requirement was developed, and the energy savings, energy cost savings, and first costs for the heat recovery installation were developed. The calculated payback for this application was 6.3 years using 2002 New York state average energy costs. This payback met the minimum requirements for cost effectiveness established for the state of New York for updating the commercial energy conservation code.

Winiarski, David W.

2004-08-15T23:59:59.000Z

153

Modeling the performance of small capacity lithium bromide-water absorption chiller operated by solar energy  

SciTech Connect (OSTI)

An analysis of the performance of a solar operated small capacity (two-ton) Lithium Bromide-Water (LiBr-H{sub 2}O) absorption system is conducted. The analysis is based on the first law of thermodynamics with lithium bromide as the absorbent and water as the refrigerant. The effect of various parameters affecting the machine coefficient of performance under various operating conditions is reported. Coefficient of performance of up to 0.8 can be obtained using flat plate solar collectors with generator temperatures in the range of 80--95 C (176--203 F). Liquid heat exchangers with effectiveness based on an NTU of the order of one would be a good design choice. The chiller can save approximately 3,456 kWh/yr per a two-ton unit, and it will reduce emissions by 19 lb of NO{sub x}, 5,870 lb of CO{sub 2}, and 16 lb of SO{sub x} per year per machine.

Saman, N.F. [Texas A and M Univ., College Station, TX (United States). Energy Systems Lab.; Sa`id, W.A.D.K. [Univ. of Technology, Baghdad (Iraq). Control and Systems Engineering Dept.

1996-12-31T23:59:59.000Z

154

Secondary condenser Cooling water  

E-Print Network [OSTI]

Receiver Secondary condenser LC LC Reboiler TC PC Cooling water PC FCPC Condenser LC XC Throttling valve ¨ mx my l© ª y s § y m «¬ ly my wx l n® ® x np © ¯ Condenser Column Compressor Receiver Super-heater Decanter Secondary condenser Reboiler Throttling valve Expansion valve Cooling water

Skogestad, Sigurd

155

Low-cost thin-film absorber/evaporator for an absorption chiller. Final report, May 1992-April 1993  

SciTech Connect (OSTI)

The feasibility of making the absorber and evaporator of a small lithium-bromide absorption chiller from thin plastic films was studied. Tests were performed to measure (1) pressure limitations for a plastic thin-film heat exchanger, (2) flow pressure-drop characteristics, (3) air permeation rates across the plastic films, and (4) creep characteristics of the plastic films. Initial tests were performed on heat exchangers made of either low-density polyethylene (LDPE), high-density polyethylene (HDPE), or a LDPE/HDPE blend. While initial designs for the heat exchanger failed at internal pressures of only 5 to 6 psi, the final design could withstand pressures of 34 psi.

Lowenstein, A.; Sibilia, M.

1993-04-01T23:59:59.000Z

156

in Condensed Matter Physics  

E-Print Network [OSTI]

Master in Condensed Matter Physics ­ Master académique #12;2 #12;3 Students at the University. Condensed matter physics is about explaining and predicting the relationship between the atomic, and broad education in the field of condensed matter physics · introduce you to current research topics

van der Torre, Leon

157

Condensation Particle Counter  

E-Print Network [OSTI]

Model 3007 Condensation Particle Counter Operation and Service Manual 1930035, Revision C August 2002 P a r t i c l e I n s t r u m e n t s #12;#12;Model 3007 Condensation Particle Counter Operation............................................................................V 1. UNPACKING AND PARTS IDENTIFICATION..................................1 Unpacking the Condensation

Weber, Rodney

158

Operation and performance of a 350 kW (100 RT) single-effect/double-lift absorption chiller in a district heating network  

SciTech Connect (OSTI)

The efficiency of combined heat, power, and cold production in total energy systems could be improved significantly if absorption chillers were available that could be driven with limited mass flows of low-temperature hot water. In the case of district heat-driven air conditioning, for example, currently available standard absorption chillers are often not applied because they cannot provide the low hot water return temperature and the specific cooling capacity per unit hot water mass flow that are required by many district heating networks. Above all, a drastic increase in the size of the machine (total heat exchanger area) due to low driving temperature differences if of concern in low-temperature applications. A new type of multistage lithium bromide/water absorption chiller has been developed for the summertime operating conditions of district heating networks. It provides large cooling of the district heating water (some 30 K) and large cooling capacity per unit hot water mass flow. Two pilot plants of this novel absorption chiller were designed within the framework of a joint project sponsored by the German Federal Ministry of Education, Science, Research and Technology (BMBF), a consortium of 15 district heating utilities, and two manufacturers. The plants have been operated since summer 1996 in the district heating networks of Berlin and Duesseldorf. This paper describes the concept, installation, and control strategy of the two pilot plants, and it surveys the performance and operating experience of the plants under varying practical conditions.

Schweigler, C.J.; Preissner, M.; Demmel, S.; Hellmann, H.M.; Ziegler, F.F. [ZAE Bayern, Garching/Munich (Germany)

1998-10-01T23:59:59.000Z

159

Demonstration of a new ICPC design with a double-effect absorption chiller in an office building in Sacramento, California[Integrated Compound Parabolic Concentrator  

SciTech Connect (OSTI)

In 1998 two new technologies, a new ICPC solar collector and the solar operation of a double effect chiller, have been demonstrated for the first in an office building in Sacramento, California. This paper describes the demonstration project and reports on component and system performance.

Duff, W.S.; Winston, R.; O'Gallagher, J.J.; Henkel, T.; Muschaweck, J.; Christiansen, R.; Bergquam, J.

1999-07-01T23:59:59.000Z

160

Development and Verification for the Control Method Using Surplus Pressure of Primary Pumps in Chiller Plant Systems for Air Conditioning which Adopts Primary/Secondary Piping Systems PPT  

E-Print Network [OSTI]

(chiller side) and secondary flow loop (load side). It is a huge energy loss, because the primary pumps use their head to lead much flow to the decoupler. Therefore, we have developed new control method using surplus pressure of the primary pump to reduce...

Matsushita, N.; Fujimura, M.; Sumiyoshi, D.; Akashi, Y.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Quark Condensates: Flavour Dependence  

E-Print Network [OSTI]

We determine the q-bar q condensate for quark masses from zero up to that of the strange quark within a phenomenologically successful modelling of continuum QCD by solving the quark Schwinger-Dyson equation. The existence of multiple solutions to this equation is the key to an accurate and reliable extraction of this condensate using the operator product expansion. We explain why alternative definitions fail to give the physical condensate.

R. Williams; C. S. Fischer; M. R. Pennington

2007-03-23T23:59:59.000Z

162

Economical Condensing Turbines?  

E-Print Network [OSTI]

an engineer decide when to conduct an in depth study of the economics either in the company or outside utilizing professional engineers who are experts in this type of project. Condensing steam turbines may not be economical when the fuel is purchased...Economical Condensing Turbines? by J.E.Dean, P.E. Steam turbines have long been used at utilities and in industry to generate power. There are three basic types of steam turbines: condensing, letdown 1 and extraction/condensing. ? Letdown...

Dean, J. E.

163

Condensation Energy of a Spacetime Condensate  

E-Print Network [OSTI]

Starting from an analogy between the Planck-Einstein scale and the dual length scales in Ginzburg-Landau theory of superconductivity, and assuming that space-time is a condensate of neutral fermionic particles with Planck mass, we derive the baryonic mass of the universe. In that theoretical framework baryonic matter appears to be associated with the condensation energy gained by spacetime in the transition from its normal (symetric) to its (less symetric) superconducting-like phase. It is shown however that the critical transition temperature cannot be the Planck temperature. Thus leaving open the enigma of the microscopic description of spacetime at quantum level.

Clovis Jacinto de Matos; Pavol Valko

2010-12-17T23:59:59.000Z

164

Electrohydrodynamically enhanced condensation heat transfer  

E-Print Network [OSTI]

In a condenser the thickness of the liquid condensate film covering the cooled surface constitutes a resistance to the heat transfer. By establishing a non uniform electric field in the vicinity of the condensation surface the extraction of liquid...

Wawzyniak, Markus

2012-06-07T23:59:59.000Z

165

New and Existing Buildings Heating and Cooling Opportunities: Dedicated Heat Recovery Chiller  

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

Langfitt Langfitt U S Department of State Overseas Buildings Operations Mechanical Engineering Division *Engineers are working Harder AND Smarter *New Energy Economy *Heating Is Where The Opportunity Is  39% of total US energy goes into non-residential buildings.  Gas for heating is about 60% of energy used in a building  Gas for heating is at least 25% of total energy used in the US. Heat Generation System Heat Disposal System What's Wrong With This Picture? Keep the heat IN the system Don't run main plant equipment until necessary ! Less rejected heat Less gas consumption High Temp >160F with conventional boilers Hydronic heating... condensing style modular boilers. The entire heating system... designed for low temperature water, recommend maximum temperature of 135ºF.

166

Electrolyte vapor condenser  

DOE Patents [OSTI]

A system is disclosed for removing electrolyte from a fuel cell gas stream. The gas stream containing electrolyte vapor is supercooled utilizing conventional heat exchangers and the thus supercooled gas stream is passed over high surface area passive condensers. The condensed electrolyte is then drained from the condenser and the remainder of the gas stream passed on. The system is particularly useful for electrolytes such as phosphoric acid and molten carbonate, but can be used for other electrolyte cells and simple vapor separation as well. 3 figs.

Sederquist, R.A.; Szydlowski, D.F.; Sawyer, R.D.

1983-02-08T23:59:59.000Z

167

Electrolyte vapor condenser  

DOE Patents [OSTI]

A system is disclosed for removing electrolyte from a fuel cell gas stream. The gas stream containing electrolyte vapor is supercooled utilizing conventional heat exchangers and the thus supercooled gas stream is passed over high surface area passive condensers. The condensed electrolyte is then drained from the condenser and the remainder of the gas stream passed on. The system is particularly useful for electrolytes such as phosphoric acid and molten carbonate, but can be used for other electrolyte cells and simple vapor separation as well.

Sederquist, Richard A. (Newington, CT); Szydlowski, Donald F. (East Hartford, CT); Sawyer, Richard D. (Canton, CT)

1983-01-01T23:59:59.000Z

168

Air-Cooled Traction Drive Inverter  

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

the high temperature operating capability of wide bandgap (WBG) devices. New low-loss Si IGBTs. Innovative heat sink design minimizes the thermal resistance. Fewer...

169

Air-Cooled Traction Drive Inverter  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

170

Mechanism of dropwise condensation  

E-Print Network [OSTI]

From a study of surface phenomena, information is obtained about conditions under which net condensation can occur. An experimental examination of the surface, using an optical method capable of detecting thin films of ...

Umur, Aydin

1963-01-01T23:59:59.000Z

171

Making adsorptive chillers faster by a proper choice of adsorption isobar shape: Comparison of optimal and real adsorbents  

Science Journals Connector (OSTI)

Abstract This paper addresses the first quantitative evaluation of the effect of adsorbent isobar shape on the dynamics of AC (adsorptive chiller) cycle. The numerical and experimental studies of this effect have been performed to answer the question Which practical enhancement of the AC specific cooling power may be expected when one would use an adsorbent with the optimal isobar shape instead of a real adsorbent typical for AC?. The reference (real) adsorbent is SWS-1L (mesoporous silica gel modified by CaCl2) that was proven to be efficient in AC units driven by waste or renewable heat. The optimal adsorbent is found to provide shorter AC cycles as compared with the real one so that the SCP increases by a factor of 1.5 that is of certain practical importance. In a broader sense, this original approach can be further used to specify requirements for selecting known adsorbents as well as tailoring a new generation of adsorbents optimal for a variety of practically interesting AC cycles.

Boris N. Okunev; Yuri I. Aristov

2014-01-01T23:59:59.000Z

172

Demonstration of an on-site PAFC cogeneration system with waste heat utilization by a new gas absorption chiller  

SciTech Connect (OSTI)

Analysis and cost reduction of fuel cells is being promoted to achieve commercial on-site phosphoric acid fuel cells (on-site FC). However, for such cells to be effectively utilized, a cogeneration system designed to use the heat generated must be developed at low cost. Room heating and hot-water supply are the most simple and efficient uses of the waste heat of fuel cells. However, due to the short room-heating period of about 4 months in most areas in Japan, the sites having demand for waste heat of fuel cells throughout the year will be limited to hotels and hospitals Tokyo Gas has therefore been developing an on-site FC and the technology to utilize tile waste heat of fuel cells for room cooling by means of an absorption refrigerator. The paper describes the results of fuel cell cogeneration tests conducted on a double effect gas absorption chiller heater with auxiliary waste heat recovery (WGAR) that Tokyo Gas developed in its Energy Technology Research Laboratory.

Urata, Tatsuo [Tokyo Gas Company, LTD, Tokyo (Japan)

1996-12-31T23:59:59.000Z

173

Direct Evaporative Precooling Model and Analysis  

SciTech Connect (OSTI)

Evaporative condenser pre-cooling expands the availability of energy saving, cost-effective technology options (market engagement) and serves to expedite the range of options in upcoming codes and equipment standards (impacting regulation). Commercially available evaporative pre-coolers provide a low cost retrofit for existing packaged rooftop units, commercial unitary split systems, and air cooled chillers. We map the impact of energy savings and peak energy reduction in the 3 building types (medium office, secondary school, and supermarket) in 16 locations for three building types with four pad effectivenesses and show the effect for HVAC systems using either refrigerants R22 or R410A

Shen, Bo [ORNL; Ally, Moonis Raza [ORNL; Rice, C Keith [ORNL; Craddick, William G [ORNL

2011-01-01T23:59:59.000Z

174

Materials/Condensed Matter  

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

Materials/Condensed Matter Print Materials/Condensed Matter Print Materials research provides the foundation on which the economic well being of our high-tech society rests. The impact of advanced materials ranges dramatically over every aspect of our modern world from the minutiae of daily life to the grand scale of our national economy. Invariably, however, breakthroughs to new technologies trace their origin both to fundamental research in the basic properties of condensed matter and to applied research aimed at manipulating properties (structural, physical, chemical, electrical, magnetic, optical, etc.). Increasingly, the frontiers of materials research include materials that are "strongly correlated," characterized by strong coupling between a material's electrons with other electrons, magnetism, or the material lattice itself. This coupling often results in novel behavior, such as superconductivity, that may lead to technologically important applications.

175

Quantum Condensed Matter | More Science | ORNL  

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

Quantum Condensed Matter SHARE Quantum Condensed Matter Neutron scattering is a uniquely powerful probe for measuring the structure and dynamics of condensed matter. As such it is...

176

Quantum Condensed Matter | Neutron Science | ORNL  

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

Quantum Condensed Matter SHARE Quantum Condensed Matter Neutron scattering is a uniquely powerful probe for measuring the structure and dynamics of condensed matter. As such it is...

177

Galaxies as condensates  

E-Print Network [OSTI]

A novel interpretation of MOND is presented. For galactic data, in addition to Newtonian acceleration, there is an attractive acceleration peaking at Milgrom's parameter a_0. The peak lies within experimental error where a_0 = cH_0/2\\pi and H_0 is the present-time value of the Hubble constant. This peaking may be understood in terms of quantum mechanical mixing between Newtonian gravitation and the condensation mechanism. There are five pointers towards galaxies being Fermi-Dirac condensates.

D. V. Bugg

2012-12-21T23:59:59.000Z

178

Strategies in Optimizing Condensate Return  

E-Print Network [OSTI]

Optimizing condensate return for reuse as boiler feedwater is often a viable means of reducing fuel costs and improving boiler system efficiency. As more condensate is returned, less makeup is required and savings on water and water treatment costs...

Bloom, D.

179

Condensate removal device  

DOE Patents [OSTI]

A condensate removal device is disclosed which incorporates a strainer in unit with an orifice. The strainer is cylindrical with its longitudinal axis transverse to that of the vapor conduit in which it is mounted. The orifice is positioned inside the strainer proximate the end which is remoter from the vapor conduit.

Maddox, James W. (Newport News, VA); Berger, David D. (Alexandria, VA)

1984-01-01T23:59:59.000Z

180

Top Quark Condensate Revisited  

Science Journals Connector (OSTI)

......hence a strong connection with the Higgs boson itself. Such a situation can be...the top quark condensate. The Higgs boson emerges as aft bound state and...at A~ 1019 GeV. (3 19) The Higgs boson was predicted as a ft bound state......

Koichi Yamawaki

1996-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

The Color Glass Condensate  

E-Print Network [OSTI]

We provide a broad overview of the theoretical status and phenomenological applications of the Color Glass Condensate effective field theory describing universal properties of saturated gluons in hadron wavefunctions that are extracted from deeply inelastic scattering and hadron-hadron collision experiments at high energies.

F. Gelis; E. Iancu; J. Jalilian-Marian; R. Venugopalan

2010-02-01T23:59:59.000Z

182

Commercial Energy Efficiency Rebate Program | Department of Energy  

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

Commercial Energy Efficiency Rebate Program Commercial Energy Efficiency Rebate Program Commercial Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Other Appliances & Electronics Commercial Weatherization Manufacturing Commercial Lighting Lighting Home Weatherization Insulation Design & Remodeling Water Heating Windows, Doors, & Skylights Program Info State Hawaii Program Type State Rebate Program Rebate Amount Air Cooled Packaged/Split AC: $200/ton Variable Refrigerant Flow AC: $250 - $350/ton Water Cooled Chiller (Standard): $50/ton Water Cooled Chiller (Enhanced): $150/ton VFD Control (Air Handler): $50/HP VFD Control (Chilled/Condenser Water Pumps): $80/HP VFD Pool Pump System: $225/HP VFD Domestic Water Pump System: $3,000 plus $80/HP reduction

183

Inhomogeneous chiral condensates  

E-Print Network [OSTI]

The chiral condensate, which is constant in vacuum, may become spatially modulated at moderately high densities where in the traditional picture of the QCD phase diagram a first-order chiral phase transition occurs. We review the current status of this idea, which originally dates back to Migdal's pion condensation, but recently received new momentum through studies on the nature of the chiral critical point and by the conjecture of a quarkyonic-matter phase. We discuss how these nonuniform phases emerge in generalized Ginzburg-Landau analyses as well as in specific calculations, both within effective models and in Dyson-Schwinger or large-$N_c$ approaches to QCD. Questions about the most favored shape of the modulations and its dimension, and about the effects of nonzero isospin chemical potential, strange quarks, color superconductivity, and external magnetic fields on these inhomogeneous phases will be addressed as well.

Michael Buballa; Stefano Carignano

2014-10-07T23:59:59.000Z

184

Condensation and Large Cardinals Sy-David Friedman, Peter Holy  

E-Print Network [OSTI]

Condensation and Large Cardinals Sy-David Friedman, Peter Holy Abstract We introduce two generalized condensation principles: Local Club Condensation and Stationary Condensation. We show that while Strong Condensation (a generalized Condensation principle intro- duced by Hugh Woodin in [19

185

Brookhaven Condensed Matter Physics  

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

Condensed Matter Physics Condensed Matter Physics Condensed matter physicists study the properties of bulk matter-solids and liquids-as well as the properties exhibited at surfaces and interfaces, with a view to obtaining a fundamental understanding of the unusual properties that materials can exhibit. These problems are some of the most challenging in physics today, but have the huge pay-off in that such an understanding may ultimately lead to improved materials for use in applications as diverse as computing, memory storage, electric motors, and energy storage and transport. At Brookhaven Lab, this work includes both experimental and theoretical studies. Much of the experimental work carried out today uses the National Synchrotron Light Source (NSLS, shown at right)-one of the premiere synchrotron light sources of the last two decades. Commissioned in the 1980s, the NSLS is host to more than 2,200 users per year and produces copious amounts of light, from the infrared to the ultraviolet to the x-ray. By using this light as a probe, scientists can learn about the arrangement of the atoms and electrons in the materials and how they behave under various conditions. Among other projects, BNL scientists have played leading roles in the development and application of resonant and inelastic x-ray scattering techniques to the study of magnetic and other materials, have pioneered the use of photoemission techniques (based on the photoelectric effect that Einstein first understood 100 years ago) for looking at electronic and magnetic materials, and have carried out some of the seminal experiments to understand the atomic and magnetic structure at surfaces.

186

Return Condensate to the Boiler  

Broader source: Energy.gov [DOE]

This tip sheet on returning condensate to boilers provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

187

Color Glass Condensate and Glasma  

E-Print Network [OSTI]

In this talk, I review the Color Glass Condensate theory of gluon saturation, and its application to the early stages of heavy ion collisions.

Francois Gelis

2010-09-01T23:59:59.000Z

188

Lease Condensate Production  

Gasoline and Diesel Fuel Update (EIA)

Condensate Production Condensate Production (Million Barrels) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2006 2007 2008 2009 2010 2011 View History U.S. 182 181 173 178 224 231 1979-2011 Alabama 2 2 2 2 2 2 1979-2011 Alaska 0 0 0 0 0 20 1979-2011 Arkansas 0 0 0 0 0 0 1979-2011 California 0 0 0 0 0 0 1979-2011 Coastal Region Onshore 0 0 0 0 0 0 1979-2011 Los Angeles Basin Onshore 0 0 0 0 0 0 1979-2011 San Joaquin Basin Onshore 0 0 0 0 0 0 1979-2011 State Offshore 0 0 0 0 0 0 1979-2011 Colorado 6 6 7 7 7 8 1979-2011 Florida 0 0 0 0 0 0 1979-2011 Kansas 1 1 1 1 2 1 1979-2011 Kentucky 0 0 0 0 0 0 1979-2011 Louisiana 22 20 20 18 14 14 1981-2011

189

Covered Product Categories (Fact Sheet), Energy-Efficient Product...  

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

Boilers p Chillers - Air-Cooled Electric - Water-Cooled Electric p p Light Commercial Heating and Cooling n Commercial Water Heating Gas Water Heaters n Residential Space Heating...

190

Program Potential: Estimates of Federal Energy Cost Savings from Energy Efficient Procurement  

E-Print Network [OSTI]

Conditioners CommercialAir?SourceHeatPumps Air?CooledHeaters Gas Furnaces Air-Source Heat Pumps Boilers CentralChillers Commercial Air-Source Heat Pumps Commercial Boilers

Taylor, Margaret

2014-01-01T23:59:59.000Z

191

Vortex Structure in Charged Condensate  

E-Print Network [OSTI]

We study magnetic fields in the charged condensate that we have previously argued should be present in helium-core white dwarf stars. We show that below a certain critical value the magnetic field is entirely expelled from the condensate, while for larger values it penetrates the condensate within flux-tubes that are similar to Abrikosov vortex lines; yet higher fields lead to the disruption of the condensate. We find the solution for the vortex lines in both relativistic and nonrelativistic theories that exhibit the charged condensation. We calculate the energy density of the vortex solution and the values of the critical magnetic fields. The minimum magnetic field required for vortices to penetrate the helium white dwarf cores ranges from roughly 10^7 to 10^9 Gauss. Fields of this strength have been observed in white dwarfs. We also calculate the London magnetic field due to the rotation of a dwarf star and show that its value is rather small.

Gabadadze, Gregory

2009-01-01T23:59:59.000Z

192

Vortex Structure in Charged Condensate  

E-Print Network [OSTI]

We study magnetic fields in the charged condensate that we have previously argued should be present in helium-core white dwarf stars. We show that below a certain critical value the magnetic field is entirely expelled from the condensate, while for larger values it penetrates the condensate within flux-tubes that are similar to Abrikosov vortex lines; yet higher fields lead to the disruption of the condensate. We find the solution for the vortex lines in both relativistic and nonrelativistic theories that exhibit the charged condensation. We calculate the energy density of the vortex solution and the values of the critical magnetic fields. The minimum magnetic field required for vortices to penetrate the helium white dwarf cores ranges from roughly 10^7 to 10^9 Gauss. Fields of this strength have been observed in white dwarfs. We also calculate the London magnetic field due to the rotation of a dwarf star and show that its value is rather small.

Gregory Gabadadze; Rachel A. Rosen

2009-05-14T23:59:59.000Z

193

Buildings Energy Data Book: 5.5 Thermal Distribution Systems  

Buildings Energy Data Book [EERE]

5 5 Typical Commercial Building Thermal Energy Distribution Design Load Intensities (Watts per SF) Distribution System Fans Other Central System Supply Fans Cooling Tower Fan Central System Return Fans Air-Cooled Chiller Condenser Fan 0.6 Terminal Box Fans 0.5 Exhaust Fans (2) Fan-Coil Unit Fans (1) Condenser Fans 0.6 Packaged or Split System Indoor Blower 0.6 Pumps Chilled Water Pump Condenser Water Pump Heating Water Pump Note(s): Source(s): 0.1 - 0.2 0.1 - 0.2 1) Unducted units are lower than those with some ductwork. 2) Strong dependence on building type. BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II:Thermal Distribution, Auxiliary Equipment, and Ventilation, Oct. 1999, Table 3-1, p. 3-6. 0.3 - 1.0 0.1 - 0.3 0.1 - 0.4

194

Condensation on superhydrophobic copper oxide nanostructures  

E-Print Network [OSTI]

Condensation is an important process in many power generation and water desalination technologies. Superhydrophobic nanostructured surfaces have unique condensation properties that may enhance heat transfer through a ...

Dou, Nicholas (Nicholas Gang)

2012-01-01T23:59:59.000Z

195

Condensation on Superhydrophobic Copper Oxide Nanostructures  

E-Print Network [OSTI]

Condensation is an important process in both emerging and traditional power generation and water desalination technologies. Superhydrophobic nanostructures promise enhanced condensation heat transfer by reducing the ...

Enright, Ryan

196

Condensed Matter Theory Center Fall 2009 Symposium  

E-Print Network [OSTI]

Condensed Matter Theory Center Fall 2009 Symposium September 28 - October 2, 2009 2202 Physics Barnett, "Vortex lattice locking in rotating BECs and spinor condensates" Maxim Dzero, "Cooper pair

Lathrop, Daniel P.

197

ARM - Measurement - Cloud condensation nuclei  

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

condensation nuclei condensation nuclei ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud condensation nuclei Small particles (typically 0.0002 mm, or 1/100 th the size of a cloud droplet) about which cloud droplets coalesce. Categories Aerosols, Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments AOS : Aerosol Observing System CCN : Cloud Condensation Nuclei Particle Counter Field Campaign Instruments AOS : Aerosol Observing System

198

Condensate System Troubleshooting and Optimization  

E-Print Network [OSTI]

fuel is needed to convert it back to steam because 148 BTU's are in each pound of l80 0 F condensate. And finally, because it is water that the plant has already treated, (ion exchange processed, scale/corrosion treated, oxygen removed... heat transfer surfaces). The results of carbon dioxide corrosion include: expensive replacement of condensate piping reduced boiler tube life and, in cases, unexpected boiler shutdown and production losses. The net result is an economic Jutlay...

Jenkins, B. V.

1983-01-01T23:59:59.000Z

199

W condensation at the LHC?  

E-Print Network [OSTI]

We discuss the possibility of the generation and subsequent decay of a W and Z condensate in LHC collisions. We point out that a process like $h\\rightarrow\\gamma\\gamma$, which involves a virtual W loop, may have an enhancement if the condensate exists. Even if this is not the case, the W propagator is influenced by the strong, but short lived magnetic field generated in proton-proton collisions. This will influence the di-gamma decay of the Higgs particle.

P. Olesen

2012-07-30T23:59:59.000Z

200

Considerations When Selecting a Condensing Economizer  

Broader source: Energy.gov [DOE]

This tip sheet lays out considerations when selecting condensing economizers as part of optimized steam systems.

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Instability of condensate lm and capillary blocking in small-diameter-thermosyphon condensers  

E-Print Network [OSTI]

Instability of condensate ®lm and capillary blocking in small-diameter-thermosyphon condensers H 1998 Abstract Instability of the condensate ®lm in a small-diameter-tube condenser was investigated- namic force or surface tension, the inner surface of the annular condensate ®lm is inherently unstable

Zhao, Tianshou

202

Condensed hydrogen for thermonuclear fusion  

SciTech Connect (OSTI)

Inertial confinement fusion (ICF) power, in either pure fusion or fission-fusion hybrid reactors, is a possible solution for future world's energy demands. Formation of uniform layers of a condensed hydrogen fuel in ICF targets has been a long standing materials physics challenge. Here, we review the progress in this field. After a brief discussion of the major ICF target designs and the basic properties of condensed hydrogens, we review both liquid and solid layering methods, physical mechanisms causing layer nonuniformity, growth of hydrogen single crystals, attempts to prepare amorphous and nanostructured hydrogens, and mechanical deformation behavior. Emphasis is given to current challenges defining future research areas in the field of condensed hydrogens for fusion energy applications.

Kucheyev, S. O.; Hamza, A. V. [Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

2010-11-15T23:59:59.000Z

203

Heat transfer via dropwise condensation on hydrophobic microstructured surfaces .  

E-Print Network [OSTI]

??Dropwise condensation has the potential to greatly increase heat transfer rates. Heat transfer coefficients by dropwise condensation and film condensation on microstructured silicon chips were (more)

Ruleman, Karlen E. (Karlen Elizabeth)

2009-01-01T23:59:59.000Z

204

California--State Offshore Natural Gas Liquids Lease Condensate...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Date: 12312015 Referring Pages: Lease Condensate Estimated Production CA, State Offshore Lease Condensate Proved Reserves, Reserve Changes, and Production Lease Condensate...

205

MagLab Audio Dictionary: Condensed Matter Science  

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

Condensed Matter Science? Now Playing: What's Condensed Matter Science? Enable Javascript and Flash to stream the Magnet Minute Jim Brooks Associated Links Condensed Matter...

206

Potentials for reductions of carbon dioxide emissions of the industrial sector in transitional economies -- A case study of implementation of absorption chiller and co-generation  

SciTech Connect (OSTI)

Central and East European (CEE) countries together with former USSR emitted about 25 percent of the world carbon dioxide emissions, predominantly because of high energy intensity of their industries and dependence on coal. The paper focuses on technologies which would reduce the need for fossil fuel burning by improving energy efficiency in industry. In the process industry, heat demand is usually met by combustion of fossil fuels, cold is produced with electricity. Technical potentials of absorption chillers (AC) and co-generation in the process industry as well as their market penetration potentials are analyses for Slovenia, one of the fastest transforming CEE economies. Technical potentials are not necessarily realized in production. New technology employment in firms depends on several factors. This paper first summarizes the existing models explaining adoption of technology by firms. Then, it focuses selectively on the impact of macro economic and institutional factors and points out which policy instruments could facilitate faster diffusion of the technologies and thereby reduction of energy related carbon dioxide emissions in the industrial sector.

Remec, J. [Univ. of Ljubljana (Slovenia). Faculty of Mechanical Engineering; Dolsak, N. [Univ. of Ljubljana (Slovenia). Faculty of Economics]|[Indiana Univ., Bloomington, IN (United States). School of Public and Environmental Affairs

1996-12-01T23:59:59.000Z

207

Free-Energy Barrier at Droplet Condensation  

Science Journals Connector (OSTI)

......2010 research-article Articles Free-Energy Barrier at Droplet Condensation...Particular emphasis is placed on the free-energy barrier associated with droplet...Physics Supplement No. 184, 2010 Free-Energy Barrier at Droplet Condensation......

Andreas Nubaumer; Elmar Bittner; Wolfhard Janke

2010-03-01T23:59:59.000Z

208

Gas condensate damage in hydraulically fractured wells  

E-Print Network [OSTI]

a 2D 1-phase simulator in order to help us to better understand the results of gas condensate simulation. Then during the research, gas condensate models with various gas compositions were simulated using a commercial simulator (CMG). The results...

Reza, Rostami Ravari

2004-11-15T23:59:59.000Z

209

Forced-convection condensation inside tubes  

E-Print Network [OSTI]

High vapor velocity condensation inside a tube was studied analytically. The von Karman universal velocity distribution was applied to the condensate flow, pressure drops were calculated using the Lockhart- Martinelli ...

Traviss, Donald P.

1971-01-01T23:59:59.000Z

210

Condensation of Excitons in a Trap  

Science Journals Connector (OSTI)

Condensation is observed in a gas of indirect excitons confined in an electrostatic trap. Imaging and interferometric measurements detect that excitons condense at the trap bottom and exciton spontaneous coherence emerges with lowering temperature. Below ...

A. A. High; J. R. Leonard; M. Remeika; L. V. Butov; M. Hanson; A. C. Gossard

2012-04-17T23:59:59.000Z

211

Condensed Matter Theory Center Wednesday, May 18  

E-Print Network [OSTI]

Condensed Matter Theory Center Seminar Wednesday, May 18 11am-12pm 2205 Physics Building Zhengcheng condensed matter physics is based on two theories: symmetry breaking theory for phases and phase transitions

Lathrop, Daniel P.

212

Condensed Matter Theory Center Wednesday, January 4  

E-Print Network [OSTI]

Condensed Matter Theory Center Seminar Wednesday, January 4 11:00am-12:00pm 2205 Physics Building) methods may be used to address such a problem by calculating both global (condensate fraction, superfluid

Lathrop, Daniel P.

213

Condensed Matter Theory Center/JQI  

E-Print Network [OSTI]

Joint Condensed Matter Theory Center/JQI Seminar Wednesday, March 21, 11:00-12:30pm 2205 Physics in condensed matter physics. Among the exciting recent developments in this direction are the discoveries

Lathrop, Daniel P.

214

Condensed Matter Theory Center Tuesday, December 13  

E-Print Network [OSTI]

Condensed Matter Theory Center Seminar Tuesday, December 13 11:00am-12:30pm 2205 Physics Building" Abstract: At sufficiently low temperatures, condensed-matter systems tend to develop order. An notable

Lathrop, Daniel P.

215

Economic and Performance Benefits Resulting From the Use of Large...  

Open Energy Info (EERE)

Benefits Resulting From the Use of Large Diameter Fans on Air Cooled Heat Exchangers (A Case Study in the Use of Large Fan Air Cooled Condensers at the Neal Hot Springs Geothermal...

216

Residential Condensing Gas Furnaces | Department of Energy  

Office of Environmental Management (EM)

Gas Furnaces Residential Condensing Gas Furnaces Standardized Templates for Reporting Test Results residentialcondensinggasfurnacev1.0.xlsx More Documents & Publications...

217

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.

218

Condensed Matter Theory Center Fall 2010 Symposium  

E-Print Network [OSTI]

Condensed Matter Theory Center Fall 2010 Symposium November 2-4, 2010 2205 Physics Building bosons" Ryan Barnett, "Quantum dynamics in ferromagnetic and antiferromagnetic condensates" Hoi Yin Hui" Qi Zhou, "Inter-band coupling induced novel condensates in a double-well lattice" November 3, 2010

Lathrop, Daniel P.

219

Condensed Matter Theory Center 2011 Fall Symposium  

E-Print Network [OSTI]

Condensed Matter Theory Center 2011 Fall Symposium October 3 & 4, 2011 2205 Physics Building and Collective Modes in Fermionic Condensates with Bragg Scattering" Benjamin Fregoso "Degenerate FloquetEinstein condensates" Tuesday, October 4 Afternoon Session: 25:30pm ChienHung Lin "Stabilizing topological

Lathrop, Daniel P.

220

Condensation and metastability in stochastic particle systems  

E-Print Network [OSTI]

Condensation and metastability in stochastic particle systems Stefan Grosskinsky Warwick) Condensation and metastability in IPS October 26, 2012 2 / 21 #12;The inclusion process Lattice: of size L() S. Grosskinsky (Warwick) Condensation and metastability in IPS October 26, 2012 2 / 21 #12;The

Wirosoetisno, Djoko

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Condensed Matter Theory Center Ian Spielman  

E-Print Network [OSTI]

Condensed Matter Theory Center Seminar Ian Spielman (JQI) Tuesday, November 9 11:00am-12:30pm 2205 Physics Building "A Bose-Einstein condensate subject to synthetic gauge fields" Here will first present our experimental work creating a synthetic magnetic field in a Bose-Einstein condensate (BEC

Lathrop, Daniel P.

222

CONDENSATION AND EVAPORATION FOR THERMALLY UNEQUILIBRATED PHASES  

E-Print Network [OSTI]

CONDENSATION AND EVAPORATION FOR THERMALLY UNEQUILIBRATED PHASES R. A. Marcus1 , A. V. Fedkin2-K) equation for the rate of condensation of a gas or evaporation of a solid or liquid is used for systems, Tg, differs from that of the condensed phase, Ts . Here, we modify the H-K equation for this case

Grossman, Lawrence

223

CONDENSATION OF CHONDRULES: CONDITIONS FOR "FIERY RAIN".  

E-Print Network [OSTI]

CONDENSATION OF CHONDRULES: CONDITIONS FOR "FIERY RAIN". L. Grossman1,2 and A. V. Fedkin1 . 1 Dept little Na condenses above the solidus, and Na2O contents of most chondrules plot above Na2O was condensed at near-liquidus temperatures. In the context of melting chondrule precursors, we showed that Na

Grossman, Lawrence

224

Federal Offshore--California Natural Gas Liquids Lease Condensate...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Date: 12312015 Referring Pages: Lease Condensate Estimated Production Federal Offshore California Lease Condensate Proved Reserves, Reserve Changes, and Production Lease...

225

Chiral condensate in neutron matter  

E-Print Network [OSTI]

A recent chiral perturbation theory calculation of the in-medium quark condensate $$ is extended to the isospin-asymmetric case of pure neutron matter. In contrast to the behavior in isospin-symmetric nuclear matter we find only small deviations from the linear density approximation. This feature originates primarily from the reduced weight factors (e.g. 1/6 for the dominant contributions) of the $2\\pi$-exchange mechanisms in pure neutron matter. Our result suggests therefore that the tendencies for chiral symmetry restoration are actually favored in systems with large neutron excess (e.g. neutron stars). We also analyze the behavior of the density-dependent quark condensate $(\\rho_n)$ in the chiral limit $m_\\pi\\to 0$.

N. Kaiser; W. Weise

2008-08-06T23:59:59.000Z

226

Running condensate in moving superfluid  

E-Print Network [OSTI]

A possibility of the condensation of excitations with non-zero momentum in moving superfluid media is considered in terms of the Ginzburg-Landau model. The results might be applicable to the superfluid $^4$He, ultracold atomic Bose gases, various superconducting and neutral systems with pairing, like ultracold atomic Fermi gases and the neutron component in compact stars. The order parameters, the energy gain, and critical velocities are found.

Kolomeitsev, E E

2015-01-01T23:59:59.000Z

227

Extreme-UV lithography condenser  

DOE Patents [OSTI]

Condenser system for use with a ringfield camera in projection lithography where the condenser includes a series of segments of a parent aspheric mirror having one foci at a quasi-point source of radiation and the other foci at the radius of a ringfield have all but one or all of their beams translated and rotated by sets of mirrors such that all of the beams pass through the real entrance pupil of a ringfield camera about one of the beams and fall onto the ringfield radius as a coincident image as an arc of the ringfield. The condenser has a set of correcting mirrors with one of the correcting mirrors of each set, or a mirror that is common to said sets of mirrors, from which the radiation emanates, is a concave mirror that is positioned to shape a beam segment having a chord angle of about 25 to 85 degrees into a second beam segment having a chord angle of about 0 to 60 degrees.

Sweatt, William C. (Albuquerque, NM); Sweeney, Donald W. (San Ramon, CA); Shafer, David (Fairfield, CT); McGuire, James (Pasadena, CA)

2001-01-01T23:59:59.000Z

228

Utilization of municipal wastewater for cooling in thermoelectric power plants: Evaluation of the combined cost of makeup water treatment and increased condenser fouling  

SciTech Connect (OSTI)

A methodology is presented to calculate the total combined cost (TCC) of water sourcing, water treatment and condenser fouling in the recirculating cooling systems of thermoelectric power plants. The methodology is employed to evaluate the economic viability of using treated municipal wastewater (MWW) to replace the use of freshwater as makeup water to power plant cooling systems. Cost analyses are presented for a reference power plant and five different tertiary treatment scenarios to reduce the scaling tendencies of MWW. Results indicate that a 550 MW sub-critical coal fired power plant with a makeup water requirement of 29.3 ML/day has a TCC of $3.0 - 3.2 million/yr associated with the use of treated MWW for cooling. (All costs USD 2009). This translates to a freshwater conservation cost of $0.29/kL, which is considerably lower than that of dry air cooling technology, $1.5/kL, as well as the 2020 conservation cost target set by the U.S. Department of Energy, $0.74/kL. Results also show that if the available price of freshwater exceeds that of secondarytreated MWW by more than $0.13-0.14/kL, it can be economically advantageous to purchase secondary MWW and treat it for utilization in the recirculating cooling system of a thermoelectric power plant.

Walker, Michael E.; Theregowda, Ranjani B.; Safari, Iman; Abbasian, Javad; Arastoopour, Hamid; Dzombak, David A.; Hsieh, Ming-Kai; Miller, David C.

2013-10-01T23:59:59.000Z

229

Air Cooling Technology for Power Electronic Thermal Control  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

230

Air Cooling Technology for Power Electronic Thermal Control  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

231

Air Cooling Technology for Power Electronic Thermal Control  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

232

Air Cooling Technology for Power Electronic Thermal Control  

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

Characterization Platform * Air flow rate control * High accuracy heat transfer measurement * Velocity field characterization * Automated control and data acquisition...

233

Preconditioning Outside Air: Cooling Loads from Building Ventilation  

E-Print Network [OSTI]

of the standard. To mitigate or nullify these additional weather loads, outdoor air preconditioning technologies are being promoted in combination with conventional HVAC operations downstream as a means to deliver the required fresh air and control humidity...

Kosar, D.

1998-01-01T23:59:59.000Z

234

Air Cooling Technology for Power Electronic Thermal Control  

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

5 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 0 20 40 60 80 100 120 Pressure Loss (kPa) CFM Pressure Loss Heat Dissipation150C Heat Dissipation200C Heat Dissipation (kW) Heat Dissipation...

235

High-Temperature Air-Cooled Power Electronics Thermal Design  

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

GoNo-Go M1 (NREL): Heat transfer feasibility study M1 (ORNL): Device-level evaluation Heat transfer accomplished with reasonable flow and pressure loss? M2: Build and test...

236

High-Temperature, Air-Cooled Traction Drive Inverter Packaging  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

237

Axions: Bose Einstein Condensate or Classical Field?  

E-Print Network [OSTI]

The axion is a motivated dark matter candidate, so it would be interesting to find features in Large Scale Structures specific to axion dark matter. Such features were proposed for a Bose Einstein condensate of axions, leading to confusion in the literature (to which I contributed) about whether axions condense due to their gravitational interactions. This note argues that the Bose Einstein condensation of axions is a red herring: the axion dark matter produced by the misalignment mechanism is already a classical field, which has the distinctive features attributed to the axion condensate (BE condensates are described as classical fields). This note also estimates that the rate at which axion particles condense to the field, or the field evaporates to particles, is negligeable.

Sacha Davidson

2014-12-20T23:59:59.000Z

238

Bio-oil fractionation and condensation  

DOE Patents [OSTI]

A method of fractionating bio-oil vapors which involves providing bio-oil vapors comprising bio-oil constituents is described. The bio-oil vapors are cooled in a first stage which comprises a condenser having passages for the bio-oil separated by a heat conducting wall from passages for a coolant. The coolant in the condenser of the first stage is maintained at a substantially constant temperature, set at a temperature in the range of 75 to 100.degree. C., to condense a first liquid fraction of liquefied bio-oil constituents in the condenser of the first stage. The first liquid fraction of liquified bio-oil constituents from the condenser in the first stage is collected. Also described are steps for subsequently recovering further liquid fractions of liquefied bio-oil constituents. Particular compositions of bio-oil condensation products are also described.

Brown, Robert C; Jones, Samuel T; Pollard, Anthony

2013-07-02T23:59:59.000Z

239

Lorentz violation and Condensed Matter Physics  

E-Print Network [OSTI]

We present heuristic arguments that hint to a possible connection of Lorentz violation with observed phenomenon in condensed matter physics. Various references from condensed matter literature are cited where operators in the Standard Model Extension (SME) appear to be enhanced. Based on this we propose that, in the non-relativistic limit, Lorentz violation in the context of the SME exhibits itself in various condensed matter systems.

Muhammad Adeel Ajaib

2014-03-29T23:59:59.000Z

240

Analysis of condensate banking dynamics in a gas condensate reservoir under different injection schemes  

E-Print Network [OSTI]

condensate reservoir under natural depletion, and injection of methane, injection of carbon dioxide, produced gas recycling and water injection. To monitor the condensate banking dynamics near the wellbore area, such as oil saturation and compositional...

Sandoval Rodriguez, Angelica Patricia

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

,"Federal Offshore California Lease Condensate Proved Reserves...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore California Lease Condensate Proved Reserves, Reserve Changes, and Production",10,"Annual",2012,...

242

,"California Lease Condensate Proved Reserves, Reserve Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","California Lease Condensate Proved Reserves, Reserve Changes, and Production",10,"Annual",2012,...

243

Advances in modelling of condensation phenomena  

SciTech Connect (OSTI)

The physical parameters in the modelling of condensation phenomena in the CANDU reactor system codes are discussed. The experimental programs used for thermal-hydraulic code validation in the Canadian nuclear industry are briefly described. The modelling of vapour generation and in particular condensation plays a key role in modelling of postulated reactor transients. The condensation models adopted in the current state-of-the-art two-fluid CANDU reactor thermal-hydraulic system codes (CATHENA and TUF) are described. As examples of the modelling challenges faced, the simulation of a cold water injection experiment by CATHENA and the simulation of a condensation induced water hammer experiment by TUF are described.

Liu, W.S.; Zaltsgendler, E. [Ontario Hydro Nuclear, Toronto (Canada); Hanna, B. [Atomic Energy of Canada Limited, Pinawa, Manitoba (Canada)

1997-07-01T23:59:59.000Z

244

Treatment of evaporator condensates by pervaporation  

DOE Patents [OSTI]

A pervaporation process for separating organic contaminants from evaporator condensate streams is disclosed. The process employs a permselective membrane that is selectively permeable to an organic component of the condensate. The process involves contacting the feed side of the membrane with a liquid condensate stream, and withdrawing from the permeate side a vapor enriched in the organic component. The driving force for the process is the in vapor pressure across the membrane. This difference may be provided for instance by maintaining a vacuum on the permeate side, or by condensing the permeate. The process offers a simple, economic alternative to other separation techniques.

Blume, Ingo (Hengelq, NL); Baker, Richard W. (Palo Alto, CA)

1990-01-01T23:59:59.000Z

245

Mississippi Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Mississippi Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

246

California Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) California Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

247

Pennsylvania Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Pennsylvania Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

248

Quantum Condensates in Nuclear Matter: Problems  

E-Print Network [OSTI]

In connection with the contribution "Quantum Condensates in Nuclear Matter" some problems are given to become more familiar with the techniques of many-particle physics.

G. Ropke; D. Zablocki

2010-01-11T23:59:59.000Z

249

Oil recovery from condensed corn distillers solubles.  

E-Print Network [OSTI]

??Condensed corn distillers solubles (CCDS) contains more oil than dried distillers grains with solubles (DDGS), 20 vs. 12% (dry weight basis). Therefore, significant amount of (more)

Majoni, Sandra

2009-01-01T23:59:59.000Z

250

The Tragic Fate in Chillers Later Dramas  

E-Print Network [OSTI]

Waster T h e s i s S e r a a n L a n g e , F r a n c i s J 18S4 T r a g i c f a t e i n S c h i l l e r ' s l a t e r dramas. K, i -W r r ^ J I A J O O I , 0 - - . T ' '7 ( yf / (X 0 The anc i en t Oreek^ saw tha t there was no s t a b i l... i t y i n the heavens above o r i n the e a r t h below, tha t r u i n f o l l o w e d sueeesa an iwa t- r .col u<< n the h e e l s of p r o s p e r i t y . Th i s he observed and h i s s i m p l e , c h i l d - l i k e mind f a n c i e d a t f i...

Lange, Francis Joseph

1894-01-01T23:59:59.000Z

251

Adaptive Port Reduction in Static Condensation  

E-Print Network [OSTI]

Adaptive Port Reduction in Static Condensation JL Eftang DBP Huynh DJ Knezevic EM Rønquist a framework for adaptive reduction of the degrees of freedom associated with ports in static condensation (SC reduction for the interior of a component with model order reduction on the ports in order to rapidly

Rønquist, Einar M.

252

Quark condensate in two-flavor QCD  

E-Print Network [OSTI]

We compute the condensate in QCD with two flavors of dynamical fermions using numerical simulation. The simulations use overlap fermions, and the condensate is extracted by fitting the distribution of low lying eigenvalues of the Dirac operator in sectors of fixed topological charge to the predictions of Random Matrix Theory.

Thomas DeGrand; Zhaofeng Liu; Stefan Schaefer

2006-11-03T23:59:59.000Z

253

Consider Installing a Condensing Economizer | Department of Energy  

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

a Condensing Economizer Consider Installing a Condensing Economizer This tip sheet summarizes the benefits of condensing economizers and is part of a series of tip sheets on how to...

254

Quark condensate for various heavy flavors  

E-Print Network [OSTI]

The quark condensate is calculated within the world-line effective-action formalism, by using for the Wilson loop an ansatz provided by the stochastic vacuum model. Starting with the relation between the quark and the gluon condensates in the heavy-quark limit, we diminish the current quark mass down to the value of the inverse vacuum correlation length, finding in this way a 64%-decrease in the absolute value of the quark condensate. In particular, we find that the conventional formula for the heavy-quark condensate cannot be applied to the c-quark, and that the corrections to this formula can reach 23% even in the case of the b-quark. We also demonstrate that, for an exponential parametrization of the two-point correlation function of gluonic field strengths, the quark condensate does not depend on the non-confining non-perturbative interactions of the stochastic background Yang-Mills fields.

Dmitri Antonov; Jose Emilio F. T. Ribeiro

2012-10-04T23:59:59.000Z

255

Bose Condensation of Ising Anyons  

E-Print Network [OSTI]

We consider the string-net model on the honeycomb lattice for Ising anyons in the presence of a string tension. This competing term induces a nontrivial dynamics of the non-Abelian anyonic quasiparticles and may lead to a breakdown of the topological phase. Using high-order series expansions and exact diagonalizations, we determine the robustness of this doubled Ising phase which is found to be separated from two gapped phases. An effective quantum dimer model emerges in the large tension limit giving rise to two different translation symmetry-broken phases. Consequently, we obtain four transition points, two of which are associated to first-order transitions whereas the two others are found to be continuous and provide examples of recently proposed Bose condensation for anyons.

Schulz, M D; Misguich, G; Schmidt, K P; Vidal, J

2014-01-01T23:59:59.000Z

256

Condensation on Slippery Asymmetric Bumps  

E-Print Network [OSTI]

Bumps are omnipresent from human skin to the geological structures on planets, which offer distinct advantages in numerous phenomena including structural color, drag reduction, and extreme wettability. Although the topographical parameters of bumps such as radius of curvature of convex regions significantly influence various phenomena including anti-reflective structures and contact time of impacting droplets, the effect of the detailed bump topography on growth and transport of condensates have not been clearly understood. Inspired by the millimetric bumps of the Namib Desert beetle, here we report the identified role of radius of curvature and width of bumps with homogeneous surface wettability in growth rate, coalescence and transport of water droplets. Further rational design of asymmetric convex topography and synergetic combination with slippery coating simultaneously enable self-transport, leading to unseen five-fold higher growth rate and an order of magnitude faster shedding time of droplets compared...

Park, Kyoo-Chul; He, Neil; Aizenberg, Joanna

2015-01-01T23:59:59.000Z

257

Surface Condensation of CO2 onto Kaolinite. | EMSL  

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

Condensation of CO2 onto Kaolinite. Surface Condensation of CO2 onto Kaolinite. Abstract: The fundamental adsorption behavior of gaseous and supercritical carbon dioxide (CO2) onto...

258

California Federal Offshore Crude Oil + Lease Condensate Proved...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Crude Oil + Lease Condensate Proved Reserves (Million Barrels) California Federal Offshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Decade Year-0 Year-1...

259

California State Offshore Crude Oil + Lease Condensate Proved...  

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

Crude Oil + Lease Condensate Proved Reserves (Million Barrels) California State Offshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

260

Louisiana State Offshore Crude Oil + Lease Condensate Proved...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Louisiana State Offshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Federal Offshore--California Natural Gas Liquids Lease Condensate...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Liquids Lease Condensate, Proved Reserves (Million Barrels) Federal Offshore--California Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels) Decade Year-0...

262

Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate...  

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

Liquids Lease Condensate, Proved Reserves (Million Barrels) Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels) Decade Year-0 Year-1...

263

Texas State Offshore Crude Oil + Lease Condensate Proved Reserves...  

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

Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Texas State Offshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

264

California--State Offshore Natural Gas Liquids Lease Condensate...  

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

Liquids Lease Condensate, Proved Reserves (Million Barrels) California--State Offshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels) Decade Year-0 Year-1...

265

Pulmonary and Systemic Immune Response to Inhaled Oil Condensates...  

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

Pulmonary and Systemic Immune Response to Inhaled Oil Condensates Pulmonary and Systemic Immune Response to Inhaled Oil Condensates Presentation given at DEER 2006, August 20-24,...

266

Recovery of hydrogen and other components from refinery gas stream by partial condensation using preliminary reflux condensation  

SciTech Connect (OSTI)

A process is disclosed for separating a hydrogen-containing refinery-type gas mixture into various fractions using reflux condensation, drying and partial condensation and phase separation.

Beddome, R.A.; Fenner, G.W.; Saunders, J.B.

1984-04-17T23:59:59.000Z

267

Central Air Conditioners","Heat Pumps","Individual Air Conditioners","District Chilled Water","Central Chillers","Packaged  

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

5. Cooling Equipment, Floorspace, 1999" 5. Cooling Equipment, Floorspace, 1999" ,"Total Floorspace (million square feet)" ,"All Buildings","All Cooled Buildings","Cooling Equipment (more than one may apply)" ,,,"Residential-Type Central Air Conditioners","Heat Pumps","Individual Air Conditioners","District Chilled Water","Central Chillers","Packaged Air Conditioning Units","Swamp Coolers","Other" "All Buildings ................",67338,58474,8329,9147,14276,2750,12909,36527,2219,1312 "Building Floorspace" "(Square Feet)" "1,001 to 5,000 ...............",6774,4879,890,700,962,"Q","Q",2613,253,"Q" "5,001 to 10,000 ..............",8238,6212,1606,707,1396,"Q","Q",3197,181,"Q"

268

In-Field Performance of Condensing Boilers  

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

IN-FIELD PERFORMANCE OF CONDENSING IN-FIELD PERFORMANCE OF CONDENSING BOILERS Lois B. Arena Steven Winter Associates, Inc. March 2012 Why Research Hydronic Heating? © 2012 Steven Winter Associates, Inc. All rights reserved Reasons to Research Boilers  Approx. 14 million homes (11%) in the US are heated with a steam or hot water system  Almost 70 percent of existing homes were built prior to 1980  Boilers built prior to 1980 generally have AFUE's of 0.65 or lower  Energy savings of 20+% are possible by simply replacing older boilers with standard boilers & up to 30% with condensing boilers.  Optimizing condensing boilers in new and existing homes could mean the difference of 8-10% savings with little to no

269

Condensing Heat Exchangers Optimize Steam Boilers  

E-Print Network [OSTI]

The development of fluorocarbon resin covered tubes has advanced to the point where full scale marketing in connection with condensing heat exchangers has begun. Field installations show simple paybacks of one to one and a half years with resulting...

Sullivan, B.; Sullivan, P. A.

1983-01-01T23:59:59.000Z

270

Condensation heat transfer on nanoengineered surfaces  

E-Print Network [OSTI]

This thesis presents a series of three related studies with the aim of developing a surface that promotes robust dropwise condensation. Due to their remarkably low droplet adhesion, superhydrophobic surfaces were investigated ...

Paxson, Adam Taylor

2011-01-01T23:59:59.000Z

271

Advanced materials for enhanced condensation heat transfer  

E-Print Network [OSTI]

This thesis investigates the use of three classes advanced materials for promoting dropwise condensation: 1. robust hydrophobic functionalizations 2. superhydrophobic textures 3. lubricant-imbibed textures We first define ...

Paxson, Adam Taylor

2014-01-01T23:59:59.000Z

272

Insulate Steam Distribution and Condensate Return Lines  

Broader source: Energy.gov [DOE]

This tip sheet on insulating steam distribution and condensate return lines provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

273

Optimizing Steam & Condensate System: A Case Study  

E-Print Network [OSTI]

Optimization of Steam & Condensate systems in any process plant results in substantial reduction of purchased energy cost. During periods of natural gas price hikes, this would benefit the plant in controlling their fuel budget significantly...

Venkatesan, V. V.; Norris, C.

2011-01-01T23:59:59.000Z

274

Dropwise Condensation on Micro- and Nanostructured Surfaces  

E-Print Network [OSTI]

In this review we cover recent developments in the area of surface- enhanced dropwise condensation against the background of earlier work. The development of fabrication techniques to create surface structures at the micro- ...

Miljkovic, Nenad

275

Insulate Steam Distribution and Condensate Return Lines  

SciTech Connect (OSTI)

This revised ITP tip sheet on insulating steam distribution and condensate return lines provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

276

Hierarchical superhydrophobic aluminum surfaces for condensation applications  

E-Print Network [OSTI]

Many existing industrial systems, including thermal desalination plants and air conditioning systems, involve the process of condensation and are heavily dependent on this process for achieving adequate levels of energy ...

Lopez, Ken, S.B. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

277

Process Considerations in Surface Condenser Design  

E-Print Network [OSTI]

Condenser Design engineers and process engineers need to work closely together if efficient designs are to be made. This paper examines the importance of such interactions and outlines how it can be achieved....

Polley, G. T.; Terranova, A.; Capel, A. C. P.

278

Cold condensation of dust in the ISM  

E-Print Network [OSTI]

The condensation of complex silicates with pyroxene and olivine composition at conditions prevailing in molecular clouds has been experimentally studied. For this purpose, molecular species comprising refractory elements were forced to accrete on cold substrates representing the cold surfaces of surviving dust grains in the interstellar medium. The efficient formation of amorphous and homogeneous magnesium iron silicates at temperatures of about 12 K has been monitored by IR spectroscopy. The gaseous precursors of such condensation processes in the interstellar medium are formed by erosion of dust grains in supernova shock waves. In the laboratory, we have evaporated glassy silicate dust analogs and embedded the released species in neon ice matrices that have been studied spectroscopically to identify the molecular precursors of the condensing solid silicates. A sound coincidence between the 10 micron band of the interstellar silicates and the 10 micron band of the low-temperature siliceous condensates can be...

Rouill, Gal; Krasnokutski, Serge A; Krebsz, Melinda; Henning, Thomas

2015-01-01T23:59:59.000Z

279

Potential Condensed Fuel for the Milky Way  

E-Print Network [OSTI]

Potential condensed clouds of gas in the Galactic halo are examined in the context of the recent models of cooling, fragmenting clouds building up the baryonic mass of the Galaxy. 582 high-velocity clouds (HVCs) are defined as the potential infalling, condensed clouds and the sample's spatial and velocity distribution are presented. With the majority of the hydrogen in the clouds ionized (~85%), the clouds at a distribution of distances within 150 kpc, and their individual total masses below 10^7 Msun, the total mass in potentially condensed clouds is 1.1 - 1.4 x 10^9 Msun. If the tighter distance constraint of condensing cloud models, as well as feedback and additional accretion methods, are discussed.

M. E. Putman

2006-03-23T23:59:59.000Z

280

Particle mixing, flavor condensate and dark energy  

E-Print Network [OSTI]

The mixing of neutrinos and quarks generate a vacuum condensate that, at the present epoch, behaves as a cosmological constant. The value of the dark energy is constrained today by the very small breaking of the Lorentz invariance.

Massimo Blasone; Antonio Capolupo; Giuseppe Vitiello

2009-12-08T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Gluon Condensate in Pion Superfluid beyond Mean Field Approximation  

E-Print Network [OSTI]

We study gluon condensate in a pion superfluid, through calculating the equation of state of the system in the Nambu-Jona-Lasinio model. While in mean field approximation the growing pion condensate leads to an increasing gluon condensate, meson fluctuations reduce the gluon condensate and the broken scalar symmetry can be smoothly restored at finite isospin density.

Yin Jiang; Pengfei Zhuang

2011-03-04T23:59:59.000Z

282

Innovative Water Reuse  

E-Print Network [OSTI]

? Variable Frequency Drive Air Cooled ? Geothermal ? Thermal absorption and desiccant systems Direct Expansion Air Cooling Hybrid Cooling Tower Old Chiller Replaced With Geothermal Loop Other Ways to Reduce Water Use ? Energy Conservation...Air Conditioning & Refrigeration ? Energy Meets Water H.W. (Bill)Hoffman, P.E. H.W. (Bill)Hoffman & Associates, LLC 512-294-7193 billhoffmantx@earthlink.net Cooling Towers The purpose of a cooling tower is to get rid of unwanted...

Hoffman, W.

2011-01-01T23:59:59.000Z

283

Enhanced tubes for steam condensers. Volume 1, Summary of condensation and fouling; Volume 2, Detailed study of steam condensation  

SciTech Connect (OSTI)

Electric utility steam condensers typically use plain tubes made of titanium, stainless steel, or copper alloys. Approximately two-thirds of the total thermal resistance is on the water side of the plain tube. This program seeks to conceive and develop a tube geometry that has special enhancement geometries on the tube (water) side and the steam (shell) side. This ``enhanced`` tube geometry, will provide increased heat transfer coefficients. The enhanced tubes will allow the steam to condense at a lower temperature. The reduced condensing temperature will reduce the turbine heat rate, and increase the plant peak load capability. Water side fouling and fouling control is a very important consideration affecting the choice of the tube side enhancement. Hence, we have consciously considered fouling potential in our selection of the tube side surface geometry. Using appropriate correlations and theoretical models, we have designed condensation and water side surface geometries that will provide high performance and be cleanable using sponge ball cleaning. Commercial tube manufacturers have made the required tube geometries for test purposes. The heat transfer test program includes measurement of the condensation and water side heat transfer coefficients. Fouling tests are being run to measure the waterside fouling resistance, and to the test the ability of the sponge ball cleaning system to clean the tubes.

Webb, R.L.; Chamra, L.; Jaber, H.

1992-02-01T23:59:59.000Z

284

CONDENSED FINANCIAL REPORT FOR THE YEARS ENDED JUNE 30, 2006 AND 2005  

E-Print Network [OSTI]

CONDENSED FINANCIAL REPORT FOR THE YEARS ENDED JUNE 30, 2006 AND 2005 (unaudited) #12;CONDENSED CONDENSED FINANCIAL REPORT (unaudited) Introduction The following provides an analysis and discussion

Hemmers, Oliver

285

Re-Condensation and Liquefaction of Helium and Hydrogen Using Coolers  

E-Print Network [OSTI]

fluid is creating a condenser circuit that causes thecold head (attached to the condenser plate). The temperaturemagnet cold mass) and the condenser that is connected to the

Green, Michael A.

2010-01-01T23:59:59.000Z

286

Bulk viscosity in kaon condensed matter  

E-Print Network [OSTI]

We investigate the effect of $K^-$ condensed matter on bulk viscosity and r-mode instability in neutron stars. The bulk viscosity coefficient due to the non-leptonic process $n \\rightleftharpoons p + K^-$ is studied here. In this connection, equations of state are constructed within the framework of relativistic field theoretical models where nucleon-nucleon and kaon-nucleon interactions are mediated by the exchange of scalar and vector mesons. We find that the bulk viscosity coefficient due to the non-leptonic weak process in the condensate is suppressed by several orders of magnitude. Consequently, kaon bulk viscosity may not damp the r-mode instability in neutron stars.

Debarati Chatterjee; Debades Bandyopadhyay

2007-02-09T23:59:59.000Z

287

Spontaneous Supersymmetry Breaking Induced by Vacuum Condensates  

E-Print Network [OSTI]

We propose a novel mechanism of spontaneous supersymmetry breaking which relies upon an ubiquitous feature of Quantum Field Theory, vacuum condensates. Such condensates play a crucial r\\^{o}le in many phenomena. Examples include Unruh effect, superconductors, particle mixing, and quantum dissipative systems. We argue that in all these phenomena supersymmetry, when present, is spontaneously broken. Evidence for our conjecture is given for the Wess--Zumino model, that can be considered an approximation to the supersymmetric extensions of the above mentioned systems. The magnitude of the effect is estimated for a recently proposed experimental setup based on an optical lattice.

Antonio Capolupo; Marco Di Mauro

2012-08-29T23:59:59.000Z

288

Improved plant performance through evaporative steam condensing  

SciTech Connect (OSTI)

Combining an open cooling tower and a steam condenser into one common unit is a proven technology with many advantages in power generation application, including reduced first cost of equipment, reduced parasitic energy consumption, simplified design, reduced maintenance, and simplified water treatment, Performance of the steam turbine benefits from the direct approach to wet bulb temperature, and operating flexibility and reliability improve compared to a system with a cooling tower and surface condenser. System comparisons and case histories will be presented to substantiate improved systems economies.

Hutton, D.

1998-07-01T23:59:59.000Z

289

Inflation from tachyon condensation, large N effects  

Science Journals Connector (OSTI)

Using only general properties of the tachyon potential we show that inflation may be generic when many branes and antibranes become coincident. Inflation may occur (1) because of the assistance of the many diagonal tachyon fields, (2) when the tachyons condense in a staggered fashion, or (3) when some of them condense very late. We point out that such inflation is in some sense a stringy implementation of chaotic inflation and may have important applications for regularizing a lopsided or singular cosmological compact surface.

Mahbub Majumdar and Anne-Christine Davis

2004-05-12T23:59:59.000Z

290

Bose-Einstein condensation on quantum graphs  

E-Print Network [OSTI]

We present results on Bose-Einstein condensation (BEC) on general compact quantum graphs, i.e., one-dimensional systems with a (potentially) complex topology. We first investigate non-interacting many-particle systems and provide a complete classification of systems that exhibit condensation. We then consider models with interactions that consist of a singular part as well as a hardcore part. In this way we obtain generalisations of the Tonks-Girardeau gas to graphs. For this we find an absence of phase transitions which then indicates an absence of BEC.

Jens Bolte; Joachim Kerner

2014-03-02T23:59:59.000Z

291

Enhancing Condensers for Geothermal Systems: the Effect of High Contact Angles on Dropwise Condensation Heat Transfer  

SciTech Connect (OSTI)

Phase change heat transfer is notorious for increasing the irreversibility of, and therefore decreasing the efficiency of, geothermal power plants. Its significant contribution to the overall irreversibility of the plant makes it the most important source of inefficiency in the process. Recent studies here have shown the promotion of drop wise condensation in the lab by means of increasing the surface energy density of a tube with nanotechnology. The use of nanotechnology has allowed the creation of surface treatments which discourage water from wetting a tube surface during a static test. These surface treatments are unique in that they create high- contact angles on the condensing tube surfaces to promote drop wise condensation.

Kennedy, John M.; Kim, Sunwoo; Kim, Kwang J.

2009-10-06T23:59:59.000Z

292

Colorado Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Colorado Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

293

Colorado Crude Oil + Lease Condensate Proved Reserves (Million...  

Gasoline and Diesel Fuel Update (EIA)

+ Lease Condensate Proved Reserves (Million Barrels) Colorado Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

294

Feasibility of waterflooding Soku E7000 gas-condensate reservoir  

E-Print Network [OSTI]

We performed a simple 3D compositional reservoir simulation study to examine the possibility of waterflooding the Soku E7 gas-condensate reservoir. This study shows that water injection results in higher condensate recovery than natural depletion...

Ajayi, Arashi

2012-06-07T23:59:59.000Z

295

California Natural Gas Number of Gas and Gas Condensate Wells...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) California Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

296

Louisiana Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Louisiana Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

297

Michigan Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Michigan Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

298

Oklahoma Natural Gas Number of Gas and Gas Condensate Wells ...  

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

Gas and Gas Condensate Wells (Number of Elements) Oklahoma Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

299

Virginia Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Virginia Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

300

Tennessee Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Tennessee Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Pennsylvania Natural Gas Number of Gas and Gas Condensate Wells...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Pennsylvania Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

302

Arkansas Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Arkansas Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

303

Maryland Natural Gas Number of Gas and Gas Condensate Wells ...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Maryland Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

304

Illinois Natural Gas Number of Gas and Gas Condensate Wells ...  

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

Gas and Gas Condensate Wells (Number of Elements) Illinois Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

305

Missouri Natural Gas Number of Gas and Gas Condensate Wells ...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Missouri Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

306

Mississippi Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Mississippi Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

307

Nebraska Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Nebraska Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

308

Atmospheric Condensation Potential of Windows in Hot, Humid Climates  

E-Print Network [OSTI]

frequent atmospheric condensation on external surfaces of windows when their surface temperature drops below the dew point temperature of the hot humid air. To date, external surface condensation on windows has been given relatively much less importance...

El Diasty, R.; Budaiwi, I.

309

242-A evaporator vacuum condenser system  

SciTech Connect (OSTI)

This document is written for the 242-A evaporator vacuum condenser system (VCS), describing its purpose and operation within the evaporator. The document establishes the operating parameters specifying pressure, temperature, flow rates, interlock safety features and interfacing sub-systems to support its operation.

Smith, V.A.

1994-09-28T23:59:59.000Z

310

Water Management for Evaporatively Cooled Condensers  

E-Print Network [OSTI]

Water Management for Evaporatively Cooled Condensers Theresa Pistochini May 23rd, 2012 ResearchAirCapacity,tons Gallons of Water Continuous Test - Outdoor Air 110-115 Deg F Cyclic Test - Outdoor Air 110-115 Deg F #12 AverageWaterHardness(ppm) Cooling Degree Days (60°F Reference) 20% Population 70% Population 10

California at Davis, University of

311

The Color Glass Condensate and some applications  

E-Print Network [OSTI]

We give an elementary discussion of parton saturation and its description by the effective theory of the Color Glass Condensate. We report on progress in calculating multi-gluon correlators. The latter are necessary for many phenomenological applications, upon some of which we briefly touch.

D. N. Triantafyllopoulos

2012-09-14T23:59:59.000Z

312

Boson stars from a gauge condensate  

E-Print Network [OSTI]

The boson star filled with two interacting scalar fields is investigated. The scalar fields can be considered as a gauge condensate formed by SU(3) gauge field quantized in a non-perturbative manner. The corresponding solution is regular everywhere, has a finite energy and can be considered as a quantum SU(3) version of the Bartnik - McKinnon particle-like solution.

V. Dzhunushaliev; K. Myrzakulov; R. Myrzakulov

2006-12-28T23:59:59.000Z

313

Energy Conservation-As it Applies to Condensate Return Systems  

E-Print Network [OSTI]

Valuable heat energy in condensate is wasted when it is vented to the atmosphere in the form of flash steam at many condensate pumping stations. This heat energy may be recovered and put to use if the pumping station can handle condensate...

Sneary, M. L.

314

CONDENSING COMPUTABLE SCENES USING VISUAL COMPLEXITY AND FILM SYNTAX ANALYSIS  

E-Print Network [OSTI]

CONDENSING COMPUTABLE SCENES USING VISUAL COMPLEXITY AND FILM SYNTAX ANALYSIS Hari Sundaram Shih, sfchang}@ctr.columbia.edu ABSTRACT In this paper, we present a novel algorithm to condense computable, lighting and sound. We attempt to condense such scenes in two ways. First, we define visual complexity

Chang, Shih-Fu

315

Cloud Condensation Nuclei Retrievals at Cloud Base in North Dakota  

E-Print Network [OSTI]

Cloud Condensation Nuclei Retrievals at Cloud Base in North Dakota · Mariusz Starzec #12;Motivation Compare University of Wyoming (UWyo) and Droplet Measurement Technologies (DMT) cloud condensation nuclei condensation nuclei concentration (CCNC) at any supersaturation (SS) #12;Background Aerosols act as nuclei

Delene, David J.

316

Condensed Representation of Sequential Patterns According to Frequency-Based  

E-Print Network [OSTI]

Condensed Representation of Sequential Patterns According to Frequency-Based Measures Marc Nacre, 14032 Caen Cedex, France Abstract. Condensed representations of patterns are at the core of many, we tackle sequential data and we define an exact condensed representation for sequential patterns ac

Boyer, Edmond

317

Condensed representations for data mining Jean-Franois Boulicaut  

E-Print Network [OSTI]

Condensed representations for data mining Jean-François Boulicaut INSA de Lyon LIRIS CNRS FRE 2672.), Idea Group Reference, 2005, pp. 207-211. #12;Condensed Representations for Data Mining Jean-François Boulicaut, INSA de Lyon, France INTRODUCTION Condensed representations have been proposed in (Mannila

Boulicaut, Jean-François

318

Condensation of classical nonlinear waves Colm Connaughton1  

E-Print Network [OSTI]

Condensation of classical nonlinear waves Colm Connaughton1 , Christophe Josserand2 , Antonio of a large-scale coherent structure (a condensate) in classical wave equa- tions by considering description of the condensation process by using a wave turbulence the- ory with ultraviolet cut-off. In 3

319

Condensed Matter Physics and the Nature of Spacetime  

E-Print Network [OSTI]

CHAPTER 16 Condensed Matter Physics and the Nature of Spacetime Jonathan Bain* Abstract This essay of a quantum liquid. It evaluates three examples of spacetime analogues in condensed matter systems that have literature not much attention has been given to concepts of spacetime arising from condensed matter physics

Aronov, Boris

320

POSITIVITY CASES, ESTIMATES AND ASYMPTOTIC EXPANSIONS FOR CONDENSER CAPACITIES.  

E-Print Network [OSTI]

POSITIVITY CASES, ESTIMATES AND ASYMPTOTIC EXPANSIONS FOR CONDENSER CAPACITIES. ALAIN BONNAF´E Abstract. We study positivity cases, estimates and asymptotic expansions of condenser p the internal part of the condenser has a non-empty interior. The study of the point and its approximation

Boyer, Edmond

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Guidelines for Setting up a Reflux Condenser Water leaks from a reflux condenser can destroy years of research data and cause thousands of dollars of damage to  

E-Print Network [OSTI]

Guidelines for Setting up a Reflux Condenser Water leaks from a reflux condenser can destroy years. To help prevent this common accident, wire or clamp all hose connections, secure the condenser outlet tubes into the inlet and outlet of the condenser. After fitting the tubes into the condenser (a

Brody, James P.

322

Condensing Hybrid Water Heater Monitoring Field Evaluation  

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

Condensing Hybrid Water Heater Condensing Hybrid Water Heater Monitoring Field Evaluation Jeff Maguire, Lieko Earle, and Chuck Booten National Renewable Energy Laboratory C.E. Hancock Mountain Energy Partnership Produced under direction of the Sacramento Municipal Utilities District by the National Renewable Energy Laboratory (NREL) under Interagency Agreement CRD-05-168 and Task No WR49.3000. Technical Report NREL/TP-5500-52234 October 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308

323

Silicotitanate molecular sieve and condensed phases  

DOE Patents [OSTI]

A new microporous crystalline molecular sieve material having the formula Cs.sub.3 TiSi.sub.3 O.sub.95.cndot.3H.sub.2 O and its hydrothermally condensed phase, Cs.sub.2 TiSi.sub.6 O.sub.15, are disclosed. The microporous material can adsorb divalent ions of radionuclides or other industrial metals such as chromium, nickel, lead, copper, cobalt, zinc, cadmium, barium, and mercury, from aqueous or hydrocarbon solutions. The adsorbed metal ions can be leached out for recovery purposes or the microporous material can be hydrothermally condensed to a radiation resistant, structurally and chemically stable phase which can serve as a storage waste form for radionuclides.

Nenoff, Tina M. (Albuquerque, NM); Nyman, May D. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

324

Relativistic Bose-Einstein condensation with disorder  

E-Print Network [OSTI]

We investigate the thermodynamics of a self-interacting relativistic charged scalar field in the presence of weak disorder. We consider quenched disorder which couples linearly to the mass of the scalar field. After performing noise averages over the free energy of the system, we find that disorder increases the mean-field critical temperature for Bose-Einstein condensation at finite density. The effect of disorder on the temperature dependence of the chemical potential for a fixed charge density is investigated. Significant differences from the mean-field temperature dependence of the chemical potential are observed as the strength of the noise intensity increases. Finally, the temperature dependence of the chemical potential with fixed total charge and entropy is investigated. It is found that there is no Bose-Einstein condensation for a fixed charge to entropy ratio in the presence of weak disorder. The possible relevance of the findings in the present paper in different areas is discussed.

E. Arias; G. Krein; G. Menezes; N. F. Svaiter

2014-10-26T23:59:59.000Z

325

Condensation temperature trends among stars with planets  

E-Print Network [OSTI]

Results from detailed spectroscopic analyses of stars hosting massive planets are employed to search for trends between abundances and condensation temperatures. The elements C, S, Na, Mg, Al, Ca, Sc, Ti, V, Cr, Mn, Fe, Ni and Zn are included in the analysis of 64 stars with planets and 33 comparison stars. No significant trends are evident in the data. This null result suggests that accretion of rocky material onto the photospheres of stars with planets is not the primary explanation for their high metallicities. However, the differences between the solar photospheric and meteoritic abundances do display a weak but significant trend with condensation temperature. This suggests that the metallicity of the sun's envelope has been enriched relative to its interior by about 0.07 dex.

Guillermo Gonzalez

2005-12-08T23:59:59.000Z

326

Essence of the Vacuum Quark Condensate  

SciTech Connect (OSTI)

We show that the chiral-limit vacuum quark condensate is qualitatively equivalent to the pseudoscalar meson leptonic decay constant in the sense that they are both obtained as the chiral-limit value of well-defined gauge-invariant hadron-to-vacuum transition amplitudes that possess a spectral representation in terms of the current-quark mass. Thus, whereas it might sometimes be convenient to imagine otherwise, neither is essentially a constant mass-scale that fills all spacetime. This means, in particular, that the quark condensate can be understood as a property of hadrons themselves, which is expressed, for example, in their Bethe-Salpeter or light-front wavefunctions.

Brodsky, Stanley J.; /SLAC /Southern Denmark U., CP3-Origins; Roberts, Craig D.; /Argonne, PHY /Peking U.; Shrock, Robert; /YITP, Stony Brook; Tandy, Peter C.; /Kent State U.

2010-08-25T23:59:59.000Z

327

Pion condensation in a dense neutrino gas  

E-Print Network [OSTI]

We argue that using an equilibrated gas of neutrinos it is possible to probe the phase diagram of QCD for finite isospin and small baryon chemical potentials. We discuss this region of the phase diagram in detail and demonstrate that for large enough neutrino densities a Bose-Einstein condensate of positively charged pions arises. Moreover, we show that for nonzero neutrino density the degeneracy in the lifetimes and masses of the charged pions is lifted.

Hiroaki Abuki; Tomas Brauner; Harmen J. Warringa

2009-08-26T23:59:59.000Z

328

Cosmic Axion Bose-Einstein Condensation  

E-Print Network [OSTI]

QCD axions are a well-motivated candidate for cold dark matter. Cold axions are produced in the early universe by vacuum realignment, axion string decay and axion domain wall decay. We show that cold axions thermalize via their gravitational self-interactions, and form a Bose-Einstein condensate. As a result, axion dark matter behaves differently from the other proposed forms of dark matter. The differences are observable.

Banik, Nilanjan

2015-01-01T23:59:59.000Z

329

Measuring non-condensable gases in steam  

SciTech Connect (OSTI)

In surgery, medical devices that are used should be sterilized. To obtain surface steam sterilization conditions, not only in the sterilizer chamber itself but also in the loads to be sterilized, the amount of non-condensable gases (NCGs), for instance air, should be very low. Even rather small fractions of NCGs (below 1%) seriously hamper steam penetration in porous materials or devices with hollow channels (e.g., endoscopes). A recently developed instrument which might detect the presence of residual NCGs in a reliable and reproducible way is the 3M{sup TM} Electronic Test System (ETS). In this paper, a physical model is presented that describes the behavior of this instrument. This model has been validated by experiments in which known fractions of NCGs were introduced in a sterilizer chamber in which an ETS was placed. Despite several approximations made in the model, a good agreement is found between the model predictions and the experimental results. The basic principle of the ETS, measuring the heat transfer by condensation on a cooled surface, permits a very sensitive detection of NCGs in harsh environments like water vapor at high temperatures and pressures. Our model may serve to develop adapted and optimized versions of this instrument for use outside the field of sterilization, e.g., in heat exchangers based on steam condensation.

Doornmalen, J. P. C. M. van; Kopinga, K., E-mail: k.kopinga@tue.nl [Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands)

2013-11-15T23:59:59.000Z

330

Coherence and decoherence of a polariton condensate  

Science Journals Connector (OSTI)

We formulate a Langevin-Gross-Pitaevski equation for spatially homogeneous systems together with the semiclassical Boltzmann equations for the excited states of polaritons in a microcavity. The gain of the coherent amplitude is due to the polariton-polariton scattering from the excited states to the ground state and has been obtained by an adiabatic elimination the corresponding three-point polarization. The Langevin-Gross-Pitaevski equation contains in addition to the gain the cavity losses as well as the fluctuations from the cavity losses and from the eliminated polarization. In analogy to the semiconductor laser theory the homogeneously broadened linewidth of the condensate amplitude can be evaluated analytically above threshold using the dissipation-fluctuation theorem. A linewidth enhancement is found because of the changes in the dispersive part of the gain function with the number of excited states and of the blueshift of the ground state. The latter mechanism causes well above threshold the homogeneously broadened linewidth to increase again after a remarkably narrow linewidth is reached. This decoherence mechanisms is inherent to all nonequilibrium condensates due to the Gross-Pitaevski nonlinearity and the fluctuations of the condensate population

H. Haug; H. Thien Cao; D. B. Tran Thoai

2010-06-10T23:59:59.000Z

331

STATE OF CALIFORNIA AIR, WATER SIDE SYSTEM, SERVICE HOT WATER & POOL REQUIREMENTS  

E-Print Network [OSTI]

/Cool 144(d) Economizer 144(e) Heat and Cool Air Supply Reset 144(f) Electric Resistance Heating1 144(g) Heat Rejection System §144 (h) Air Cooled Chiller Limitation §144 (i) Duct Leakage Sealing. If Yes, a MECH-4-A must be submitted 144(k) 1. Total installed capacity (MBtu/hr) of all electric heat

332

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

333

Performance Study of Enhanced Auto-Associative Neural Networks For Sensor Fault Detection  

E-Print Network [OSTI]

. Identifying a faulty sensor has also been accomplished with synthetic data with over 15% noise superimposed on all input data. The input to the E-AANN takes data measured from a chiller model using both chiller input and output variables. The output from... synthetic data. The model simulates the performance of a reciprocating chiller. The detailed specifications of the model can be found in [10]. The inputs to the chiller model are: cin _ (temperature of water into condenser), ein _ (temperature of water...

Najafi, M.; Culp, C.; Langari, R.

2004-01-01T23:59:59.000Z

334

Data Center Energy Benchmarking: Part 5 - Case Studies on a Corporate Data Center (No. 22)  

E-Print Network [OSTI]

4 Correlation of chiller cooling power and outdoor air6 Condenser Water Pump Power Demand Cooling Towers and Pumpshour. Electrical power devoted to cooling equipment for the

Xu, Tengfang; Greenberg, Steve

2007-01-01T23:59:59.000Z

335

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

1 1 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

336

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

9 9 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

337

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

9 9 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

338

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

1 1 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 7,279 6,446 3,785 3,474 3,525 Total................................................................... 7,279 6,446 3,785 3,474 3,525 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 7,279 6,446 3,785 3,474 3,525 Nonhydrocarbon Gases Removed ..................... 788 736 431

339

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

5 5 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 15,206 15,357 16,957 17,387 18,120 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 463,929 423,672 401,396 369,624 350,413 From Oil Wells.................................................. 63,222 57,773 54,736 50,403 47,784 Total................................................................... 527,151 481,445 456,132 420,027 398,197 Repressuring ...................................................... 896 818 775 714 677 Vented and Flared.............................................. 527 481 456 420 398 Wet After Lease Separation................................

340

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

7 7 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 9 8 7 9 6 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 368 305 300 443 331 From Oil Wells.................................................. 1 1 0 0 0 Total................................................................... 368 307 301 443 331 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 368 307 301 443 331 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

7 7 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 98 96 106 109 111 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 869 886 904 1,187 1,229 From Oil Wells.................................................. 349 322 288 279 269 Total................................................................... 1,218 1,208 1,193 1,466 1,499 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 5 12 23 Wet After Lease Separation................................ 1,218 1,208 1,188 1,454 1,476 Nonhydrocarbon Gases Removed .....................

342

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

9 9 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 4 4 4 4 4 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 7 7 6 6 5 Total................................................................... 7 7 6 6 5 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 7 7 6 6 5 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

343

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

3 3 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

344

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

5 5 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

345

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

3 3 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

346

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

3 3 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

347

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

3 3 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

348

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

1 1 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

349

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

7 7 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 380 350 400 430 280 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 1,150 2,000 2,050 1,803 2,100 Total................................................................... 1,150 2,000 2,050 1,803 2,100 Repressuring ...................................................... NA NA NA 0 NA Vented and Flared.............................................. NA NA NA 0 NA Wet After Lease Separation................................ 1,150 2,000 2,050 1,803 2,100 Nonhydrocarbon Gases Removed .....................

350

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

5 5 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

351

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

1 1 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 1,502 1,533 1,545 2,291 2,386 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 899 1,064 1,309 1,464 3,401 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 899 1,064 1,309 1,464 3,401 Repressuring ...................................................... NA NA NA 0 NA Vented and Flared.............................................. NA NA NA 0 NA Wet After Lease Separation................................ 899 1,064 1,309 1,464 3,401 Nonhydrocarbon Gases Removed .....................

352

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

9 9 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

353

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

3 3 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

354

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

7 7 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

355

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

3 3 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 7 7 5 7 7 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 34 32 22 48 34 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 34 32 22 48 34 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 34 32 22 48 34 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

356

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

1 1 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

357

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

1 1 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ......................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells...................................................... 0 0 0 0 0 From Oil Wells........................................................ 0 0 0 0 0 Total......................................................................... 0 0 0 0 0 Repressuring ............................................................ 0 0 0 0 0 Vented and Flared .................................................... 0 0 0 0 0 Wet After Lease Separation...................................... 0 0 0 0 0 Nonhydrocarbon Gases Removed............................ 0 0 0 0 0 Marketed Production

358

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

7 7 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

359

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

3 3 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

360

Measured Impacts of Air Conditioner Condenser Shading  

E-Print Network [OSTI]

reaching the expansion valve. In theory, the efficiency of vapor compression air conditioning can be improved through two primary mechanisms associated with condenser shading: Direct shading. Incident solar radiation can pose approximately a 1,000 w...]: IEYPERAlURL COUPARlSOn A/C SHADING DP. 1 (Some): SOUR RADlAllON COUPARISON I=AYEI[Nl KYP orq=82.1 , mu=87.(22 Z=CONDEHSIR ARU AIR lEYP orq=83.8 , mox=02.858 TIME OF DAY, (hr) 9 12 15 TIME OF DAY, (hr) Figure 3. Sample daily 15-minute data for June 21...

Parker, D. S.; Barkaszi, S. F.; Sonne, J. K.

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Effective equations for GFT condensates from fidelity  

E-Print Network [OSTI]

The derivation of effective equations for group field theories is discussed from a variational point of view, with the action being determined by the fidelity of the trial state with respect to the exact state. It is shown how the maximisation procedure with respect to the parameters of the trial state lead to the expected equations, in the case of simple condensates. Furthermore, we show that the second functional derivative of the fidelity gives a compact way to estimate, within the effective theory itself, the limits of its validity. The generalisation can be extended to include the Nakajima--Zwanzig projection method for general mixed trial states.

Lorenzo Sindoni

2014-08-13T23:59:59.000Z

362

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

7 7 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 17 20 18 15 15 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 1,412 1,112 837 731 467 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 1,412 1,112 837 731 467 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 1,412 1,112 837 731 467 Nonhydrocarbon Gases Removed ..................... 198 3 0 0 0 Marketed Production

363

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

7 7 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 0 0 0 0 0 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 0 0 0 0 0 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ..................... 0 0 0 0 0 Marketed Production ..........................................

364

Fermion mass generation without a condensate  

E-Print Network [OSTI]

We study a lattice field theory model containing two flavors of massless staggered fermions with an onsite four-fermion interaction. The symmetry of the model forbids non-zero fermion bilinear order parameters that can generate a fermion mass. At weak couplings, we expect a massless fermion phase. At strong couplings, we can argue for the existence of massive fermions without the formation of any fermion bilinear condensate. Using Monte Carlo calculations in three space-time dimensions, we find evidence for a direct second order phase transition between the two phases.

Venkitesh Ayyar

2014-12-05T23:59:59.000Z

365

,"Colorado Natural Gas Liquids Lease Condensate, Proved Reserves...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Colorado Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",2...

366

Colorado Natural Gas Liquids Lease Condensate, Reserves Based...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Reserves Based Production (Million Barrels) Colorado Natural Gas Liquids Lease Condensate, Reserves Based Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

367

,"Colorado Crude Oil + Lease Condensate Proved Reserves (Million...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Colorado Crude Oil + Lease Condensate Proved Reserves (Million Barrels)",1,"Annual",2013...

368

Quantum top inside a Bose-Einstein-condensate Josephson junction  

SciTech Connect (OSTI)

We consider an atomic quantum dot confined between two weakly coupled Bose-Einstein condensates, where the dot serves as an additional tunneling channel. It is shown that the thus-embedded atomic quantum dot is a pseudospin subject to an external torque, and therefore equivalent to a quantum top. We demonstrate by numerical analysis of the time-dependent coupled evolution equations that this microscopic quantum top is very sensitive to any deviation from linear oscillatory behavior of the condensates. For sufficiently strong dot-condensate coupling, the atomic quantum dot can induce or modify the tunneling between the macroscopic condensates in the two wells.

Bausmerth, Ingrid; Posazhennikova, Anna [Institut fuer Theoretische Festkoerperphysik, Universitaet Karlsruhe, D-76128 Karlsruhe (Germany); Fischer, Uwe R. [Institut fuer Theoretische Physik, Eberhard-Karls-Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)

2007-05-15T23:59:59.000Z

369

Cloud condensation nuclei in Western Colorado : observations and model predictions.  

E-Print Network [OSTI]

??Variations in the warm cloud?active portion of atmospheric aerosols, or cloud condensation nuclei (CCN), have been shown to impact cloud droplet number concentration and subsequently (more)

Ward, Daniel Stewart

2010-01-01T23:59:59.000Z

370

,"New Mexico Lease Condensate Proved Reserves, Reserve Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Lease Condensate Proved Reserves, Reserve Changes, and Production",10,"Annual",2012,"6...

371

,"New Mexico Crude Oil plus Lease Condensate Proved Reserves...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New Mexico Crude Oil plus Lease Condensate Proved Reserves",10,"Annual",2012,"6302009"...

372

New Mexico Natural Gas Liquids Lease Condensate, Reserves in...  

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

in Nonproducing Reservoirs (Million Barrels) New Mexico Natural Gas Liquids Lease Condensate, Reserves in Nonproducing Reservoirs (Million Barrels) Decade Year-0 Year-1 Year-2...

373

California Federal Offshore Crude Oil + Lease Condensate Reserves...  

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

Acquisitions (Million Barrels) California Federal Offshore Crude Oil + Lease Condensate Reserves Acquisitions (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

374

Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate...  

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

New Field Discoveries (Million Barrels) Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate Reserves New Field Discoveries (Million Barrels) Decade Year-0 Year-1...

375

Texas State Offshore Crude Oil + Lease Condensate Reserves Extensions...  

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

Withheld to avoid disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate Reserves Extensions...

376

California State Offshore Crude Oil + Lease Condensate Reserves...  

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

Withheld to avoid disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate New Field Discoveries...

377

California Federal Offshore Crude Oil + Lease Condensate New...  

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

disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate New Reservoir Discoveries in Old Fields...

378

,"Federal Offshore Texas Crude Oil plus Lease Condensate Proved...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore Texas Crude Oil plus Lease Condensate Proved Reserves",10,"Annual",2012,"630...

379

Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate...  

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

Increases (Million Barrels) Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate Reserves Revision Increases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

380

Texas State Offshore Crude Oil + Lease Condensate Reserves Sales...  

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

W Withheld to avoid disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate Reserves Sales...

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

California State Offshore Crude Oil + Lease Condensate Reserves...  

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

Decreases (Million Barrels) California State Offshore Crude Oil + Lease Condensate Reserves Revision Decreases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

382

Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate...  

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

New Reservoir Discoveries in Old Fields (Million Barrels) Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate New Reservoir Discoveries in Old Fields (Million...

383

Louisiana State Offshore Crude Oil + Lease Condensate New Reservoir...  

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

New Reservoir Discoveries in Old Fields (Million Barrels) Louisiana State Offshore Crude Oil + Lease Condensate New Reservoir Discoveries in Old Fields (Million Barrels) Decade...

384

Louisiana State Offshore Crude Oil + Lease Condensate Reserves...  

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

Decreases (Million Barrels) Louisiana State Offshore Crude Oil + Lease Condensate Reserves Revision Decreases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

385

Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate...  

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

Estimated Production from Reserves (Million Barrels) Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels)...

386

Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate...  

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

Acquisitions (Million Barrels) Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate Reserves Acquisitions (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

387

California Federal Offshore Crude Oil + Lease Condensate Reserves...  

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

Adjustments (Million Barrels) California Federal Offshore Crude Oil + Lease Condensate Reserves Adjustments (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

388

California State Offshore Crude Oil + Lease Condensate Reserves...  

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

Acquisitions (Million Barrels) California State Offshore Crude Oil + Lease Condensate Reserves Acquisitions (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

389

California Federal Offshore Crude Oil + Lease Condensate Reserves...  

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

W Withheld to avoid disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate Reserves Sales...

390

,"CA, State Offshore Crude Oil plus Lease Condensate Proved Reserves...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","CA, State Offshore Crude Oil plus Lease Condensate Proved Reserves",10,"Annual",2012,"6302009"...

391

California Federal Offshore Crude Oil + Lease Condensate Reserves...  

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

Decreases (Million Barrels) California Federal Offshore Crude Oil + Lease Condensate Reserves Revision Decreases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

392

California Federal Offshore Crude Oil + Lease Condensate Reserves...  

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

Withheld to avoid disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate New Field Discoveries...

393

Texas State Offshore Crude Oil + Lease Condensate New Reservoir...  

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

disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate New Reservoir Discoveries in Old Fields...

394

,"Texas State Offshore Crude Oil plus Lease Condensate Proved...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Texas State Offshore Crude Oil plus Lease Condensate Proved Reserves",10,"Annual",2012,"6302009"...

395

California State Offshore Crude Oil + Lease Condensate New Reservoir...  

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

disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate New Reservoir Discoveries in Old Fields...

396

,"LA, State Offshore Crude Oil plus Lease Condensate Proved Reserves...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","LA, State Offshore Crude Oil plus Lease Condensate Proved Reserves",10,"Annual",2012,"6302009"...

397

Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate...  

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

Extensions (Million Barrels) Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate Reserves Extensions (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

398

Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate...  

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

Adjustments (Million Barrels) Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate Reserves Adjustments (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

399

Texas State Offshore Crude Oil + Lease Condensate Reserves New...  

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

Withheld to avoid disclosure of individual company data. Release Date: 4102014 Next Release Date: 4302015 Referring Pages: Crude Oil plus Lease Condensate New Field Discoveries...

400

California Federal Offshore Crude Oil + Lease Condensate Reserves...  

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

Increases (Million Barrels) California Federal Offshore Crude Oil + Lease Condensate Reserves Revision Increases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate...  

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

Decreases (Million Barrels) Gulf of Mexico Federal Offshore - Texas Crude Oil + Lease Condensate Reserves Revision Decreases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

402

Louisiana State Offshore Crude Oil + Lease Condensate Reserves...  

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

Increases (Million Barrels) Louisiana State Offshore Crude Oil + Lease Condensate Reserves Revision Increases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

403

California State Offshore Crude Oil + Lease Condensate Reserves...  

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

Increases (Million Barrels) California State Offshore Crude Oil + Lease Condensate Reserves Revision Increases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

404

,"New York Natural Gas Liquids Lease Condensate, Proved Reserves...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New York Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",198...

405

Chaoticity and Coherence in Bose-Eistein Condensation and Correlations  

E-Print Network [OSTI]

We review the properties of chaoticity and coherence in Bose-Einstein condensation and correlations, for a dense boson system in its mean-field represented approximately by a harmonic oscillator potential. The order parameter and the nature of the phase transition from the chaotic to the condensate states are studied for different fixed numbers of bosons. The two-particle correlation function in momentum space is calculated to investigate how the Bose-Einstein correlation depends on the degree of condensation and other momentum variables. We generalize the Bose-Einstein correlation analysis to three-particle correlations to show its dependence on the degree of condensation.

Wong, Cheuk-Yin; Liu, Jie; Ru, Peng

2015-01-01T23:59:59.000Z

406

Chaoticity and Coherence in Bose-Einstein Condensation and Correlations  

E-Print Network [OSTI]

We review the properties of chaoticity and coherence in Bose-Einstein condensation and correlations, for a dense boson system in its mean-field represented approximately by a harmonic oscillator potential. The order parameter and the nature of the phase transition from the chaotic to the condensate states are studied for different fixed numbers of bosons. The two-particle correlation function in momentum space is calculated to investigate how the Bose-Einstein correlation depends on the degree of condensation and other momentum variables. We generalize the Bose-Einstein correlation analysis to three-particle correlations to show its dependence on the degree of condensation.

Cheuk-Yin Wong; Wei-Ning Zhang; Jie Liu; Peng Ru

2015-01-23T23:59:59.000Z

407

Federal Offshore--Texas Natural Gas Liquids Lease Condensate...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Reserves Based Production (Million Barrels) Federal Offshore--Texas Natural Gas Liquids Lease Condensate, Reserves Based Production (Million Barrels) Decade Year-0 Year-1 Year-2...

408

,"Federal Offshore--California Natural Gas Liquids Lease Condensate...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore--California Natural Gas Liquids Lease Condensate, Proved Reserves (Million...

409

,"Texas--State Offshore Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Texas--State Offshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",2...

410

,"Louisiana--State Offshore Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana--State Offshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",2...

411

Louisiana--State Offshore Natural Gas Liquids Lease Condensate...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Reserves Based Production (Million Barrels) Louisiana--State Offshore Natural Gas Liquids Lease Condensate, Reserves Based Production (Million Barrels) Decade Year-0 Year-1 Year-2...

412

,"Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",2...

413

Texas--State Offshore Natural Gas Liquids Lease Condensate, Reserves...  

Gasoline and Diesel Fuel Update (EIA)

Reserves Based Production (Million Barrels) Texas--State Offshore Natural Gas Liquids Lease Condensate, Reserves Based Production (Million Barrels) Decade Year-0 Year-1 Year-2...

414

,"Alaska (with Total Offshore) Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Alaska (with Total Offshore) Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",...

415

,"California Federal Offshore Crude Oil + Lease Condensate Proved...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","California Federal Offshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels)",1,"Annual",2013...

416

,"Texas (with State Offshore) Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Texas (with State Offshore) Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",...

417

,"Louisiana (with State Offshore) Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana (with State Offshore) Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",...

418

,"Federal Offshore--Texas Natural Gas Liquids Lease Condensate...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore--Texas Natural Gas Liquids Lease Condensate, Proved Reserves (Million...

419

Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate...  

Gasoline and Diesel Fuel Update (EIA)

Reserves Based Production (Million Barrels) Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate, Reserves Based Production (Million Barrels) Decade Year-0 Year-1 Year-2...

420

,"California--State Offshore Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","California--State Offshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",2...

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

,"Texas State Offshore Crude Oil + Lease Condensate Proved Reserves...  

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

ame","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Texas State Offshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels)",1,"Annual",2013...

422

,"Louisiana State Offshore Crude Oil + Lease Condensate Proved...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana State Offshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels)",1,"Annual",2013...

423

,"Alabama (with State Offshore) Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Alabama (with State Offshore) Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",...

424

,"California State Offshore Crude Oil + Lease Condensate Proved...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","California State Offshore Crude Oil + Lease Condensate Proved Reserves (Million Barrels)",1,"Annual",2013...

425

,"Federal Offshore California Crude Oil plus Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore California Crude Oil plus Lease Condensate Proved Reserves",10,"Annual",2012,"6302009"...

426

California (with State Offshore) Natural Gas Liquids Lease Condensate...  

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

in Nonproducing Reservoirs (Million Barrels) California (with State Offshore) Natural Gas Liquids Lease Condensate, Reserves in Nonproducing Reservoirs (Million Barrels) Decade...

427

California--State Offshore Natural Gas Liquids Lease Condensate...  

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

Reserves in Nonproducing Reservoirs (Million Barrels) California--State Offshore Natural Gas Liquids Lease Condensate, Reserves in Nonproducing Reservoirs (Million Barrels) Decade...

428

,"California Crude Oil plus Lease Condensate Proved Reserves...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","California Crude Oil plus Lease Condensate Proved Reserves",10,"Annual",2012,"6302009"...

429

natural gas+ condensing flue gas heat recovery+ water creation...  

Open Energy Info (EERE)

natural gas+ condensing flue gas heat recovery+ water creation+ CO2 reduction+ cool exhaust gases+ Energy efficiency+ commercial building energy efficiency+ industrial energy...

430

Louisiana - North Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Louisiana - North Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

431

Texas - RRC District 10 Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 10 Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

432

U.S. Federal Offshore Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) U.S. Federal Offshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

433

Nebraska Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Nebraska Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

434

Texas - RRC District 7B Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 7B Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

435

Florida Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Florida Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

436

Texas - RRC District 6 Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 6 Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

437

Alabama Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Alabama Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

438

Louisiana State Offshore Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Louisiana State Offshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

439

Louisiana - South Onshore Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Louisiana - South Onshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0...

440

Texas - RRC District 2 Onshore Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 2 Onshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0...

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

New Mexico - West Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) New Mexico - West Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

442

Utah Crude Oil + Lease Condensate Estimated Production from Reserves...  

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

Estimated Production from Reserves (Million Barrels) Utah Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

443

Texas - RRC District 7C Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 7C Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

444

Texas Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Texas Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

445

Wyoming Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Wyoming Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

446

Indiana Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Indiana Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

447

Arkansas Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Arkansas Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

448

Ohio Crude Oil + Lease Condensate Estimated Production from Reserves...  

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

Estimated Production from Reserves (Million Barrels) Ohio Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

449

Kansas Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Kansas Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

450

Alaska Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Alaska Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

451

California State Offshore Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) California State Offshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0...

452

New Mexico - East Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) New Mexico - East Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

453

Colorado Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Colorado Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

454

California Federal Offshore Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) California Federal Offshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0...

455

Miscellaneous States Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Miscellaneous States Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

456

Oklahoma Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Oklahoma Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

457

Texas State Offshore Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Texas State Offshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

458

California - Los Angeles Basin Onshore Crude Oil + Lease Condensate...  

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

Production from Reserves (Million Barrels) California - Los Angeles Basin Onshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0...

459

Louisiana Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Louisiana Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

460

California - Coastal Region Onshore Crude Oil + Lease Condensate...  

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

Production from Reserves (Million Barrels) California - Coastal Region Onshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0...

Note: This page contains sample records for the topic "air-cooled chiller condenser" 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

Texas - RRC District 8A Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 8A Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

462

Texas - RRC District 9 Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 9 Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

463

Michigan Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Michigan Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

464

New Mexico Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) New Mexico Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

465

Montana Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Montana Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

466

Illinois Crude Oil + Lease Condensate Estimated Production from...  

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

Estimated Production from Reserves (Million Barrels) Illinois Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

467

Lower 48 States Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Lower 48 States Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

468

California - San Joaquin Basin Onshore Crude Oil + Lease Condensate...  

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

Production from Reserves (Million Barrels) California - San Joaquin Basin Onshore Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0...

469

Texas - RRC District 8 Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 8 Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

470

North Dakota Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) North Dakota Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

471

Texas - RRC District 1 Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 1 Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

472

Texas - RRC District 5 Crude Oil + Lease Condensate Estimated...  

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

Estimated Production from Reserves (Million Barrels) Texas - RRC District 5 Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1...

473

West Virginia Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) West Virginia Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

474

,"New York Lease Condensate Proved Reserves, Reserve Changes...  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New York Lease Condensate Proved Reserves, Reserve Changes, and Production",2,"Annual",1985,"6...

475

Theory of decoherence in Bose-Einstein condensate interferometry  

E-Print Network [OSTI]

A full treatment of decoherence and dephasing effects in BEC interferometry has been developed based on using quantum correlation functions for treating interferometric effects. The BEC is described via a phase space distribution functional of the Wigner type for the condensate modes and the positive P type for the non-condensate modes. Ito equations for stochastic condensate and non-condensate field functions replace the functional Fokker-Planck equation for the distribution functional and stochastic averages of field function products determine the quantum correlation functions.

B J Dalton

2007-02-03T23:59:59.000Z

476

Condensed Phase and Interfacial Molecular Science | U.S. DOE...  

Office of Science (SC) Website

of theories on the molecular origins of surface-mediated catalysis and heterogeneous chemistry. Studies of model condensed-phase systems target first-principles understandings of...

477

Ghost condensate model of flat rotation curves  

E-Print Network [OSTI]

An effective action of ghost condensate with higher derivatives creates a source of gravity and mimics a dark matter in spiral galaxies. We present a spherically symmetric static solution of Einstein--Hilbert equations with the ghost condensate at large distances, where flat rotation curves are reproduced in leading order over small ratio of two energy scales characterizing constant temporal and spatial derivatives of ghost field: $\\mu_*^2$ and $\\mu_\\star^2$, respectively, with a hierarchy $\\mu_\\star\\ll \\mu_*$. We assume that a mechanism of hierarchy is provided by a global monopole in the center of galaxy. An estimate based on the solution and observed velocities of rotations in the asymptotic region of flatness, gives $\\mu_*\\sim 10^{19}$ GeV and the monopole scale in a GUT range $\\mu_\\star\\sim 10^{16}$ GeV, while a velocity of rotation $v_0$ is determined by the ratio: $ \\sqrt{2} v_0^2= \\mu_\\star^2/\\mu_*^2$. A critical acceleration is introduced and naturally evaluated of the order of Hubble rate, that represents the Milgrom's acceleration.

V. V. Kiselev

2005-07-29T23:59:59.000Z

478

GEA Heat Exchangers GEA Searle Cooler and Condensing Unit Ranges  

E-Print Network [OSTI]

have high efficiency EC fans as standard across the range. All our commercial unit coolers have whiteUnits GEA Searle Condensing Units are supplied as standard to a high specification with a complete controlGEA Heat Exchangers GEA Searle Cooler and Condensing Unit Ranges Top-level engineering solutions

Frandsen, Søren

479

Vacuum condensates, flavor mixing and spontaneous supersymmetry breaking  

E-Print Network [OSTI]

Spontaneous supersymmetry (SUSY) breaking is revealed in all phenomena in which vacuum condensates are physically relevant. The dynamical breakdown of SUSY is generated by the condensates themselves, which lift the zero point energy. Evidence is presented in the case of the Wess-Zuimino model, and the flavor mixing case is treated in detail.

Antonio Capolupo; Marco Di Mauro

2013-01-05T23:59:59.000Z

480

Hydrocarbon Condensation in Heavy-Duty Diesel Exhaust  

Science Journals Connector (OSTI)

Hydrocarbon Condensation in Heavy-Duty Diesel Exhaust ... The semivolatile mass fraction of diesel exhaust particles was studied using size-resolved on-line techniques (DMA-ELPI; TDMA-ELPI). ... The measured size resolved values of mass transfer imply that condensation, or diffusion-limited mass transfer, plays a major role in driving the volatile matter to the diesel exhaust particles. ...

Jyrki Ristimki; Kati Vaaraslahti; Maija Lappi; Jorma Keskinen

2007-08-10T23:59:59.000Z

Note: This page contains sample records for the topic "air-cooled chiller condenser" from the National Library of EnergyBeta (NLEBeta).
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481

The Rapid Collection and Application of Cigarette Smoke Condensate  

Science Journals Connector (OSTI)

...order relative to the recovery, processing, and...adjustment affects condensation efficiency and spattering...may be treated with water, chemical solutions...reduction in pressure from atmospheric does not appear to...temperature at the point of condensation of the smoke stream...

John D. Millar; John W. Rhoades; and Donald E. Johnson

1968-05-01T23:59:59.000Z

482

Technical Notes Determination of Condensed Tannin Monomers in  

E-Print Network [OSTI]

Technical Notes Determination of Condensed Tannin Monomers in Environmental Samples by Capillary Gas Chromatography of Acid Depolymerization Extracts Peter J. Hernes*, and John I. Hedges School-level quantification of condensed tannin is described that uses acid depolymerization and carbocation capture

Hernes, Peter J.

483

Introduction and Condensation The 2-modular characters of Fi23  

E-Print Network [OSTI]

Introduction and Condensation The 2-modular characters of Fi23 Problem, Perfidy, Tricks, and Tackling them Verification, Overview and Outlook Computing the 2-modular characters of Fi23 Max Neunhöffer23 #12;Introduction and Condensation The 2-modular characters of Fi23 Problem, Perfidy, Tricks

Neunhöffer, Max

484

Quantitative Analysis of Chromosome Condensation in Fission Yeast  

Science Journals Connector (OSTI)

...generated during DNA damage repair by homologous recombination...condensation, spindle elongation and repair.Genes Cells 6 :743-763...in DNA single-strand break repair.Mol. Cell 21 :837-848...imaging and image analysis pipeline), S4 (Chromosome arm condensation...

Boryana Petrova; Sascha Dehler; Tom Kruitwagen; Jean-Karim Hrich; Kota Miura; Christian H. Haering

2012-12-21T23:59:59.000Z

485

Condensation ---conditional density propagation for visual Michael Isard and Andrew Blake,  

E-Print Network [OSTI]

Condensation --- conditional density propagation for visual tracking Michael Isard and Andrew Blake simultaneous alternative hypotheses. The Condensation algorithm uses ``factored sampling'', previously applied by a randomly generated set. Condensation uses learned dynamical models, together with visual observations

486

Condensation coefficients in plasma sputtering Pascal Brault , Anne-Lise Thomann, Jean-Philippe  

E-Print Network [OSTI]

Condensation coefficients in plasma sputtering deposition Pascal Brault §, Anne-Lise Thomann, Jean Backscattering Spectrom- etry are combined to determine condensation coefficients for plasma sputtering depo- sition. The method is applied for palladium deposition onto various substrates and condensation

Boyer, Edmond

487

Louisiana--South Onshore Natural Gas Liquids Lease Condensate, Proved  

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

Liquids Lease Condensate, Proved Reserves (Million Barrels) Liquids Lease Condensate, Proved Reserves (Million Barrels) Louisiana--South Onshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 263 1980's 267 253 243 238 229 220 208 194 193 196 1990's 182 175 151 133 123 136 127 134 138 142 2000's 159 141 107 82 66 65 65 71 64 74 2010's 68 64 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 8/1/2013 Next Release Date: 8/1/2014 Referring Pages: Lease Condensate Proved Reserves as of Dec. 31 LA, South Onshore Lease Condensate Proved Reserves, Reserve Changes, and Production

488

Collapsing dynamics of attractive Bose-Einstein condensates  

E-Print Network [OSTI]

The self-similar collapse of 3D and quasi-2D atom condensates with negative scattering length is examined. 3D condensates are shown to blow up following the scenario of {\\it weak collapse}: The inner core of the condensate diverges with an almost zero particle number, while its tail distribution spreads out to large distances with a constant density profile. For this case, the 3-body recombination arrests the collapse, but it weakly dissipates the atoms. The confining trap then reforms the condensate at later times. In contrast, 2D condensates undergo a {\\it strong collapse}: The atoms stay mainly located at center and recombination sequentially absorbs a significant amount of particles.

L. Berge; J. Juul Rasmussen

2000-12-04T23:59:59.000Z

489

Bose-Einstein condensation of atoms in a uniform potential  

E-Print Network [OSTI]

We have observed Bose-Einstein condensation of an atomic gas in the (quasi-)uniform three-dimensional potential of an optical box trap. Condensation is seen in the bimodal momentum distribution and the anisotropic time-of-flight expansion of the condensate. The critical temperature agrees with the theoretical prediction for a uniform Bose gas. The momentum distribution of our non-condensed quantum-degenerate gas is also clearly distinct from the conventional case of a harmonically trapped sample and close to the expected distribution in a uniform system. We confirm the coherence of our condensate in a matter-wave interference experiment. Our experiments open many new possibilities for fundamental studies of many-body physics.

Gaunt, Alexander L; Gotlibovych, Igor; Smith, Robert P; Hadzibabic, Zoran

2013-01-01T23:59:59.000Z

490

Bose-Einstein condensation of atoms in a uniform potential  

E-Print Network [OSTI]

We have observed Bose-Einstein condensation of an atomic gas in the (quasi-)uniform three-dimensional potential of an optical box trap. Condensation is seen in the bimodal momentum distribution and the anisotropic time-of-flight expansion of the condensate. The critical temperature agrees with the theoretical prediction for a uniform Bose gas. The momentum distribution of our non-condensed quantum-degenerate gas is also clearly distinct from the conventional case of a harmonically trapped sample and close to the expected distribution in a uniform system. We confirm the coherence of our condensate in a matter-wave interference experiment. Our experiments open many new possibilities for fundamental studies of many-body physics.

Alexander L. Gaunt; Tobias F. Schmidutz; Igor Gotlibovych; Robert P. Smith; Zoran Hadzibabic

2012-12-18T23:59:59.000Z

491

Collecting and recirculating condensate in a nuclear reactor containment  

DOE Patents [OSTI]

An arrangement passively cools a nuclear reactor in the event of an emergency, condensing and recycling vaporized cooling water. The reactor is surrounded by a containment structure and has a storage tank for cooling liquid, such as water, vented to the containment structure by a port. The storage tank preferably is located inside the containment structure and is thermally coupleable to the reactor, e.g. by a heat exchanger, such that water in the storage tank is boiled off to carry away heat energy. The water is released as a vapor (steam) and condenses on the cooler interior surfaces of the containment structure. The condensed water flows downwardly due to gravity and is collected and routed back to the storage tank. One or more gutters are disposed along the interior wall of the containment structure for collecting the condensate from the wall. Piping is provided for communicating the condensate from the gutters to the storage tank.

Schultz, Terry L. (Murrysville Boro, PA)

1993-01-01T23:59:59.000Z

492

Spark gap switch system with condensable dielectric gas  

DOE Patents [OSTI]

A spark gap switch system is disclosed which is capable of operating at a high pulse rate comprising an insulated switch housing having a purging gas entrance port and a gas exit port, a pair of spaced apart electrodes each having one end thereof within the housing and defining a spark gap therebetween, an easily condensable and preferably low molecular weight insulating gas flowing through the switch housing from the housing, a heat exchanger/condenser for condensing the insulating gas after it exits from the housing, a pump for recirculating the condensed insulating gas as a liquid back to the housing, and a heater exchanger/evaporator to vaporize at least a portion of the condensed insulating gas back into a vapor prior to flowing the insulating gas back into the housing.

Thayer, III, William J. (Kent, WA)

1991-01-01T23:59:59.000Z

493

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

5 5 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 21,507 32,672 33,279 34,334 35,612 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 1,473,792 1,466,833 1,476,204 1,487,451 1,604,709 From Oil Wells.................................................. 139,097 148,551 105,402 70,704 58,439 Total................................................................... 1,612,890 1,615,384 1,581,606 1,558,155 1,663,148 Repressuring ...................................................... NA NA NA 0 NA Vented and Flared.............................................. NA NA NA 0 NA Wet After Lease Separation................................

494

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

1 1 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 94 95 100 117 117 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 13,527 13,846 15,130 14,524 15,565 From Oil Wells.................................................. 42,262 44,141 44,848 43,362 43,274 Total................................................................... 55,789 57,987 59,978 57,886 58,839 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 3,290 3,166 2,791 2,070 3,704 Wet After Lease Separation................................ 52,499 54,821 57,187 55,816 55,135

495

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

1 1 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 997 1,143 979 427 437 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 109,041 131,608 142,070 156,727 171,915 From Oil Wells.................................................. 5,339 5,132 5,344 4,950 4,414 Total................................................................... 114,380 136,740 147,415 161,676 176,329 Repressuring ...................................................... 6,353 6,194 5,975 6,082 8,069 Vented and Flared.............................................. 2,477 2,961 3,267 3,501 3,493 Wet After Lease Separation................................

496

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

9 9 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 42,475 42,000 45,000 46,203 47,117 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 264,139 191,889 190,249 187,723 197,217 From Oil Wells.................................................. 0 0 0 0 0 Total................................................................... 264,139 191,889 190,249 187,723 197,217 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 0 0 0 0 0 Wet After Lease Separation................................ 264,139 191,889 190,249 187,723 197,217 Nonhydrocarbon Gases Removed

497

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

3 3 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 9,907 13,978 15,608 18,154 20,244 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 1,188,657 1,467,331 1,572,728 1,652,504 1,736,136 From Oil Wells.................................................. 137,385 167,656 174,748 183,612 192,904 Total................................................................... 1,326,042 1,634,987 1,747,476 1,836,115 1,929,040 Repressuring ...................................................... 50,216 114,407 129,598 131,125 164,164 Vented and Flared.............................................. 9,945 7,462 12,356 16,685 16,848

498

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

5 5 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 71 68 69 61 61 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 648 563 531 550 531 From Oil Wells.................................................. 10,032 10,751 9,894 11,055 11,238 Total................................................................... 10,680 11,313 10,424 11,605 11,768 Repressuring ...................................................... 0 0 0 0 0 Vented and Flared.............................................. 1,806 2,043 1,880 2,100 2,135 Wet After Lease Separation................................ 8,875 9,271 8,545 9,504 9,633 Nonhydrocarbon Gases Removed

499

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

9 9 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 60,577 63,704 65,779 68,572 72,237 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 5,859,358 4,897,366 4,828,188 4,947,589 5,074,067 From Oil Wells.................................................. 999,624 855,081 832,816 843,735 659,851 Total................................................................... 6,858,983 5,752,446 5,661,005 5,791,324 5,733,918 Repressuring ...................................................... 138,372 195,150 212,638 237,723 284,491 Vented and Flared.............................................. 32,010 26,823 27,379 23,781 26,947

500

Number of Gas and Gas Condensate Wells  

Gasoline and Diesel Fuel Update (EIA)

9 9 2000 2001 2002 2003 2004 Number of Gas and Gas Condensate Wells Producing at End of Year ................................... 15,700 16,350 17,100 16,939 20,734 Production (million cubic feet) Gross Withdrawals From Gas Wells................................................ 4,260,529 1,398,981 1,282,137 1,283,513 1,293,204 From Oil Wells.................................................. 895,425 125,693 100,324 94,615 88,209 Total................................................................... 5,155,954 1,524,673 1,382,461 1,378,128 1,381,413 Repressuring ...................................................... 42,557 10,838 9,754 18,446 19,031 Vented and Flared.............................................. 20,266 11,750 10,957 9,283 5,015 Wet After Lease Separation................................