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Note: This page contains sample records for the topic "heaters electric heat" 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.


1

Electrically heated particulate filter embedded heater design  

SciTech Connect (OSTI)

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

Gonze, Eugene V.; Chapman, Mark R.

2014-07-01T23:59:59.000Z

2

An International Survey of Electric Storage Tank Water Heater Efficiency and Standards  

E-Print Network [OSTI]

blankets to electric hot water heaters in South Africa,” J.for Residential Water Heaters, Direct Heating Equipment, andfor Residential Water Heaters, Direct Heating Equipment, and

Johnson, Alissa

2013-01-01T23:59:59.000Z

3

A Study on the Failure of Industrial Electric Heater  

E-Print Network [OSTI]

The break down mechanism of a cylindrical electric heater is investigated by studying the uneven heating behavior of the heater by measuring the surface temperature variation of the heater when it is subjected to a boundary condition of constant...

Chyu, M. C.

4

THERMOSIPHON WATER HEATERS WITH HEAT EXCHANGERS  

E-Print Network [OSTI]

The Performance of Solar Water Heater With Natural Ci rcul2-6, 1980 THERMOSIPHON WATER HEATERS WITH HEAT EXCHANGERSJune 1980 THERMOSIPHON WATER HEATERS WITH HEAT EXCHANGERS*

Mertol, Atila

2012-01-01T23:59:59.000Z

5

Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration  

DOE Patents [OSTI]

A heating system for a subsurface formation is described. The heating system includes a first heater, a second heater, and a third heater placed in an opening in the subsurface formation. Each heater includes: an electrical conductor; an insulation layer at least partially surrounding the electrical conductor; and an electrically conductive sheath at least partially surrounding the insulation layer. The electrical conductor is electrically coupled to the sheath at a lower end portion of the heater. The lower end portion is the portion of the heater distal from a surface of the opening. The first heater, the second heater, and the third heater are electrically coupled at the lower end portions of the heaters. The first heater, the second heater, and the third heater are configured to be electrically coupled in a three-phase wye configuration.

Vinegar, Harold J. (Bellaire, TX); Sandberg, Chester Ledlie (Palo Alto, CA)

2010-11-09T23:59:59.000Z

6

Is your electric process heater safe?  

SciTech Connect (OSTI)

Over the past 35 years, electric process heaters (EPHs) have been used to heat flowing fluids in different sectors of the energy industry: oil and gas exploration and production, refineries, petrochemical plants, pipeline compression facilities and power-generation plants. EPHs offer several advantages over fired heaters and shell-and-tube exchangers, which have been around for many years, including: smaller size, lighter weight, cleaner operation, lower capital costs, lower maintenance costs, no emissions or leakage, better control and improved safety. However, while many industrial standards have addressed safety concerns of fired heaters and shell-and-tube exchangers (API, TEMA, NFPA, OSHA and NEC), no standards address EPHs. The paper presents a list of questions that plant operators need to ask about the safety of their electric process heaters. The answers are also given.

Tiras, C.S.

2000-04-01T23:59:59.000Z

7

THE EFFECT OF LOCATION OF THE PREDICTED PERFORMANCE OF A HEAT PUMP WATER HEATER  

E-Print Network [OSTI]

#12;THE EFFECT OF LOCATION OF THE PREDICTED PERFORMANCE OF A HEAT PUMP WATER HEATER Laboratory testing and field testing have shown that a heat pump water heater (HPWH) uses about half the electrical energy input that an electric resistance water heater does. However, since the heat pump water heater

Oak Ridge National Laboratory

8

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

M.V. Lapsa. 2001. Residential Heat Pump Water Heater (HPWH)Calwell. 2005. Residential Heat Pump Water Heaters: Energyfor Residential Heat Pump Water Heaters Installed in

Franco, Victor

2011-01-01T23:59:59.000Z

9

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

2001. Residential Heat Pump Water Heater (HPWH) Development2005. Residential Heat Pump Water Heaters: Energy Efficiencyfor Residential Heat Pump Water Heaters Installed in

Franco, Victor

2011-01-01T23:59:59.000Z

10

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

2001. Residential Heat Pump Water Heater (HPWH) DevelopmentJ. 2003. Incorporating Water Heater Replacement into The2005. Residential Heat Pump Water Heaters: Energy Efficiency

Franco, Victor

2011-01-01T23:59:59.000Z

11

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

an electric resistance storage water heater (ESWH) with tankof total electric storage water heater shipments in the nextelectric resistance storage water heaters. The rated storage

Franco, Victor

2011-01-01T23:59:59.000Z

12

An International Survey of Electric Storage Tank Water Heater Efficiency and Standards  

E-Print Network [OSTI]

history of promoting heat pump water heaters (HPWH) throughwater heaters, and heat pump water heaters are not typical.water heaters, heat pump water heater (HPWH) technology

Johnson, Alissa

2013-01-01T23:59:59.000Z

13

Electric Storage Water Heaters  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLEEFFECTS OFElaineElectric

14

Consolidated Electric Cooperative- Heat Pump and Water Heating Rebates  

Broader source: Energy.gov [DOE]

Consolidated Electric Cooperative provides rebates to residential customers who install electric water heaters, dual-fuel heating system or geothermal heat pumps. A dual-fuel heating systems...

15

LOW COST HEAT PUMP WATER HEATER (HPWH)  

SciTech Connect (OSTI)

Water heating accounts for the second largest portion of residential building energy consumption, after space conditioning. Existing HPWH products are a technical success, with demonstrated energy savings of 50% or more compared with standard electric resistance water heaters. However, current HPWHs available on the market cost an average of $1000 or more, which is too expensive for significant market penetration. What is needed is a method to reduce the first cost of HPWHs, so that the payback period will be reduced from 8 years to a period short enough for the market to accept this technology. A second problem with most existing HPWH products is the reliability issue associated with the pump and water loop needed to circulate cool water from the storage tank to the HPWH condenser. Existing integral HPWHs have the condenser wrapped around the water tank and thus avoid the pump and circulation issues but require a relatively complex and expensive manufacturing process. A more straightforward potentially less costly approach to the integral, single package HPWH design is to insert the condenser directly into the storage tank, or immersed direct heat exchanger (IDX). Initial development of an IDX HPWH met technical performance goals, achieving measured efficiencies or energy factors (EF) in excess of 1.79. In comparison conventional electric water heaters (EWH) have EFs of about 0.9. However, the initial approach required a 2.5" hole on top of the tank for insertion of the condenser - much larger than the standard openings typically provided. Interactions with water heater manufacturers indicated that the non standard hole size would likely lead to increased manufacturing costs (at least initially) and largely eliminate any cost advantage of the IDX approach. Recently we have been evaluating an approach to allow use of a standard tank hole size for insertion of the IDX condenser. Laboratory tests of a prototype have yielded an EF of 2.02.

Mei, Vince C [ORNL; Baxter, Van D [ORNL

2006-01-01T23:59:59.000Z

16

Utilization of Heat Pump Water Heaters for Load Management  

SciTech Connect (OSTI)

The Energy Conservation Standards for Residential Water Heaters require residential electric storage water heaters with volumes larger than 55 gallons to have an energy factor greater than 2.0 after April 2015. While this standard will significantly increase the energy efficiency of water heaters, large electric storage water heaters that do not use heat pump technologies may no longer be available. Since utilities utilize conventional large-volume electric storage water heaters for thermal storage in demand response programs, there is a concern that the amended standard will significantly limit demand response capacity. To this end, Oak Ridge National Laboratory partnered with the Tennessee Valley Authority to investigate the load management capability of heat pump water heaters that meet or exceed the forthcoming water heater standard. Energy consumption reduction during peak periods was successfully demonstrated, while still meeting other performance criteria. However, to minimize energy consumption, it is important to design load management strategies that consider the home s hourly hot water demand so that the homeowner has sufficient hot water.

Boudreaux, Philip R [ORNL; Jackson, Roderick K [ORNL; Munk, Jeffrey D [ORNL; Gehl, Anthony C [ORNL; Lyne, Christopher T [ORNL

2014-01-01T23:59:59.000Z

17

Three-phase heaters with common overburden sections for heating subsurface formations  

DOE Patents [OSTI]

A heating system for a subsurface formation is described. The heating system includes three substantially u-shaped heaters with first end portions of the heaters being electrically coupled to a single, three-phase wye transformer and second end portions of the heaters being electrically coupled to each other and/or to ground. The three heaters may enter the formation through a first common wellbore and exit the formation through a second common wellbore so that the magnetic fields of the three heaters at least partially cancel out in the common wellbores.

Vinegar, Harold J. (Bellaire, TX)

2012-02-14T23:59:59.000Z

18

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

the indirect increase in home heating (and the decrease inincrease the home’s heating load in the heating season (Heaters, Direct Heating Equipment, Mobile Home Furnaces,

Franco, Victor

2011-01-01T23:59:59.000Z

19

Field Performance of Heat Pump Water Heaters in the Northeast  

SciTech Connect (OSTI)

Heat pump water heaters (HPWHs) are finally entering the mainstream residential water heater market. Potential catalysts are increased consumer demand for higher energy efficiency electric water heating and a new Federal water heating standard that effectively mandates use of HPWHs for electric storage water heaters with nominal capacities greater than 55 gallons. When compared to electric resistance water heating, the energy and cost savings potential of HPWHs is tremendous. Converting all electric resistance water heaters to HPWHs could save American consumers 7.8 billion dollars annually ($182 per household) in water heating operating costs and cut annual residential source energy consumption for water heating by 0.70 quads. Steven Winter Associates, Inc. embarked on one of the first in situ studies of these newly released HPWH products through a partnership with two sponsoring electric utility companies, National Grid and NSTAR, and one sponsoring energy efficiency service program administrator, Cape Light Compact. Recent laboratory studies have measured performance of HPWHs under various operating conditions, but publicly available field studies have not been as available. This evaluation attempts to provide publicly available field data on new HPWHs by monitoring the performance of three recently released products (General Electric GeoSpring(tm), A.O. Smith Voltex(r), and Stiebel Eltron Accelera(r)300). Fourteen HPWHs were installed in Massachusetts and Rhode Island and monitored for over a year. Of the 14 units, ten were General Electric models (50 gallon units), two were Stiebel Eltron models (80 gallon units), and two were A.O. Smith models (one 60-gallon and one 80-gallon unit).

Shapiro, C.; Puttagunta, S.

2013-08-01T23:59:59.000Z

20

An International Survey of Electric Storage Tank Water Heater Efficiency and Standards  

E-Print Network [OSTI]

Survey of Electric Storage Tank Water Heater Efficiency andSurvey of Electric Storage Tank Water Heater Efficiency andby electric resistance storage tank water heaters (geysers),

Johnson, Alissa

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

An International Survey of Electric Storage Tank Water Heater Efficiency and Standards  

E-Print Network [OSTI]

Fixed Electric Storage Water Heaters, South African Nationalinternational electric storage water heater test proceduresefficiency of electric storage water heaters, and outlines

Johnson, Alissa

2013-01-01T23:59:59.000Z

22

Heat Pump Water Heaters and American Homes: A Good Fit?  

SciTech Connect (OSTI)

Heat pump water heaters (HPWHs) are over twice as energy-efficient as conventional electric resistance water heaters, with the potential to save substantial amounts of electricity. Drawing on analysis conducted for the U.S. Department of Energy's recently-concluded rulemaking on amended standards for water heaters, this paper evaluates key issues that will determine how well, and to what extent, this technology will fit in American homes. The key issues include: 1) equipment cost of HPWHs; 2) cooling of the indoor environment by HPWHs; 3) size and air flow requirements of HPWHs; 4) performance of HPWH under different climate conditions and varying hot water use patterns; and 5) operating cost savings under different electricity prices and hot water use. The paper presents the results of a life-cycle cost analysis of the adoption of HPWHs in a representative sample of American homes, as well as national impact analysis for different market share scenarios. Assuming equipment costs that would result from high production volume, the results show that HPWHs can be cost effective in all regions for most single family homes, especially when the water heater is not installed in a conditioned space. HPWHs are not cost effective for most manufactured home and multi-family installations, due to lower average hot water use and the water heater in the majority of cases being installed in conditioned space, where cooling of the indoor environment and size and air flow requirements of HPWHs increase installation costs.

Franco, Victor; Lekov, Alex; Meyers, Steve; Letschert, Virginie

2010-05-14T23:59:59.000Z

23

Advances in the Research of Heat Pump Water Heaters  

E-Print Network [OSTI]

This paper presents the progress of many recently correlative research works on the heat pump water heater (HPWH) and on solar-assisted heat pump water heaters. The advances in the research on compressor development, alternative refrigerant...

Shan, S.; Wang, D.; Wang, R.

2006-01-01T23:59:59.000Z

24

Heat Pump Water Heater using Solid-State Energy Converters |...  

Energy Savers [EERE]

Heat Pump Water Heater using Solid-State Energy Converters Heat Pump Water Heater using Solid-State Energy Converters Sheetak will work on developing a full scale prototype of its...

25

Laboratory Performance Evaluation of Residential Integrated Heat Pump Water Heaters  

SciTech Connect (OSTI)

This paper explores the laboratory performance of five integrated Heat Pump Water Heaters (HPWHs) across a wide range of operating conditions representative of US climate regions. HPWHs are expected to provide significant energy savings in certain climate zones when compared to typical electric resistance water heaters. Results show that this technology is a viable option in most climates, but differences in control schemes and design features impact the performance of the units tested. Tests were conducted to map heat pump performance across the operating range and to determine the logic used to control the heat pump and the backup electric heaters. Other tests performed include two unique draw profile tests, reduced air flow performance tests and the standard DOE rating tests. The results from all these tests are presented here for all five units tested. The results of these tests will be used to improve the EnergyPlus heat pump water heater for use in BEopt(tm) whole-house building simulations.

Sparn, B.; Hudon, K.; Christensen, D.

2014-06-01T23:59:59.000Z

26

NREL Evaluates Performance of Heat Pump Water Heaters (Fact Sheet)  

SciTech Connect (OSTI)

NREL evaluates energy savings potential of heat pump water heaters in homes throughout all U.S. climate zones.

Not Available

2012-02-01T23:59:59.000Z

27

Economics of residential gas furnaces and water heaters in US new construction market  

E-Print Network [OSTI]

al. (2004). Heat pump water heater technology: Experienceslarger market for heat pump water heaters (US Department offurnace or heat pump and electric water heater (26%; US

Lekov, Alex B.; Franco, Victor H.; Wong-Parodi, Gabrielle; McMahon, James E.; Chan, Peter

2010-01-01T23:59:59.000Z

28

Demand Response Performance of GE Hybrid Heat Pump Water Heater  

SciTech Connect (OSTI)

This report describes a project to evaluate and document the DR performance of HPWH as compared to ERWH for two primary types of DR events: peak curtailments and balancing reserves. The experiments were conducted with GE second-generation “Brillion”-enabled GeoSpring hybrid water heaters in the PNNL Lab Homes, with one GE GeoSpring water heater operating in “Standard” electric resistance mode to represent the baseline and one GE GeoSpring water heater operating in “Heat Pump” mode to provide the comparison to heat pump-only demand response. It is expected that “Hybrid” DR performance, which would engage both the heat pump and electric elements, could be interpolated from these two experimental extremes. Signals were sent simultaneously to the two water heaters in the side-by-side PNNL Lab Homes under highly controlled, simulated occupancy conditions. This report presents the results of the evaluation, which documents the demand-response capability of the GE GeoSpring HPWH for peak load reduction and regulation services. The sections describe the experimental protocol and test apparatus used to collect data, present the baselining procedure, discuss the results of the simulated DR events for the HPWH and ERWH, and synthesize key conclusions based on the collected data.

Widder, Sarah H.; Parker, Graham B.; Petersen, Joseph M.; Baechler, Michael C.

2013-07-01T23:59:59.000Z

29

AWSWAH - the heat pipe solar water heater  

SciTech Connect (OSTI)

An all weather heat pipe solar water heater (AWSWAH) comprising a collector of 4 m/sup 2/ (43 ft/sup 2/) and a low profile water tank of 160 liters (42 gal.) was developed. A single heat pipe consisting of 30 risers and two manifolds in the evaporator and a spiral condenser was incorporated into the AWSWAH. Condensate metering was done by synthetic fiber wicks. The AWSWAH was tested alongside two conventional solar water heaters of identical dimensions, an open loop system and a closed loop system. It was found that the AWSWAH was an average of 50% more effective than the open system in the temperature range 30-90 /sup 0/C (86-194 /sup 0/F). The closed loop system was the least efficient of the three systems.

Akyurt, M.

1986-01-01T23:59:59.000Z

30

Field Monitoring Protocol: Heat Pump Water Heaters  

SciTech Connect (OSTI)

This document provides a standard field monitoring protocol for evaluating the installed performance of Heat Pump Water Heaters in residential buildings. The report is organized to be consistent with the chronology of field test planning and execution. Research questions are identified first, followed by a discussion of analysis methods, and then the details of measuring the required information are laid out. A field validation of the protocol at a house near the NREL campus is included for reference.

Sparn, B.; Earle, L.; Christensen, D.; Maguire, J.; Wilson, E.; Hancock, E.

2013-02-01T23:59:59.000Z

31

Induction heaters used to heat subsurface formations  

DOE Patents [OSTI]

A heating system for a subsurface formation includes an elongated electrical conductor located in the subsurface formation. The electrical conductor extends between at least a first electrical contact and a second electrical contact. A ferromagnetic conductor at least partially surrounds and at least partially extends lengthwise around the electrical conductor. The electrical conductor, when energized with time-varying electrical current, induces sufficient electrical current flow in the ferromagnetic conductor such that the ferromagnetic conductor resistively heats to a temperature of at least about 300.degree. C.

Nguyen, Scott Vinh (Houston, TX); Bass, Ronald M. (Houston, TX)

2012-04-24T23:59:59.000Z

32

Energy Efficiency Design Options for Residential Water Heaters: Economic Impacts on Consumers  

E-Print Network [OSTI]

for gas and electric storage water heaters. It presents theboth gas and electric storage water heaters, and heat pumpliters) for gas storage water heaters and a maximum input

Lekov, Alex

2011-01-01T23:59:59.000Z

33

Heat Pump Water Heaters | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Bigfront.jpgcommunity200cell 9HarveyWellnessFebruaryWater Heaters Heat

34

NREL Develops Heat Pump Water Heater Simulation Model (Fact Sheet)  

SciTech Connect (OSTI)

A new simulation model helps researchers evaluate real-world impacts of heat pump water heaters in U.S. homes.

Hudon, K.

2012-05-01T23:59:59.000Z

35

Electrically heated DPF start-up strategy  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine has a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates in the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates. Heat generated by combustion of particulates in the heater induces combustion of particulates within the DPF. A control module selectively enables current flow to the electrical heater for an initial period of a DPF regeneration cycle, and limits exhaust flow while the electrical heater is heating to a predetermined soot combustion temperature.

Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

2012-04-10T23:59:59.000Z

36

High voltage bus and auxiliary heater control system for an electric or hybrid vehicle  

DOE Patents [OSTI]

A control system for an electric or hybrid electric vehicle includes a vehicle system controller and a control circuit having an electric immersion heater. The heater is electrically connected to the vehicle's high voltage bus and is thermally coupled to a coolant loop containing a heater core for the vehicle's climate control system. The system controller responds to cabin heat requests from the climate control system by generating a pulse width modulated signal that is used by the control circuit to operate the heater at a duty cycle appropriate for the amount of cabin heating requested. The control system also uses the heater to dissipate excess energy produced by an auxiliary power unit and to provide electric braking when regenerative braking is not desirable and manual braking is not necessary. The control system further utilizes the heater to provide a safe discharge of a bank of energy storage capacitors following disconnection of the battery or one of the high voltage connectors used to transmit high voltage operating power to the various vehicle systems. The control circuit includes a high voltage clamping circuit that monitors the voltage on the bus and operates the heater to clamp down the bus voltage when it exceeds a pre-selected maximum voltage. The control system can also be used to phase in operation of the heater when the bus voltage exceeds a lower threshold voltage and can be used to phase out the auxiliary power unit charging and regenerative braking when the battery becomes fully charged.

Murty, Balarama Vempaty (West Bloomfield, MI)

2000-01-01T23:59:59.000Z

37

Salem Electric- Solar Water Heater Rebate  

Broader source: Energy.gov [DOE]

Salem Electric residential customers with electric water heating are eligible for a $600 rebate through Salem's Bright Way program. A program brochure with details is available on the program...

38

Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?  

E-Print Network [OSTI]

Domestic Electric Storage Water Heater (DESWH) Test Methodsfans, washing machines, water heaters and space heaters.and Space Heating Water heater intensities and electric

Letschert, Virginie

2010-01-01T23:59:59.000Z

39

Covered Product Category: Residential Electric Resistance Water Heaters  

Broader source: Energy.gov [DOE]

FEMP sets federal efficiency requirements and provides acquisition guidance across a variety of product categories, including residential electric resistance water heaters.

40

Rock Hill Utilities- Water Heater and Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

Through the SmartChoice program, Rock Hill Utilities offers rebates for water heater and heat pump replacements. Information on financing for heat pumps can also be found on the web site listed...

Note: This page contains sample records for the topic "heaters electric heat" 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

ELECTRICAL HEATERS FOR THERMO-MECHANICAL TESTS AT THE STRIPA MINE  

E-Print Network [OSTI]

5.5 Dewatering Pump 6. ELECTRICAL HEATER CONTROL SYSTEMS 6.1water influx ABSTRACT Electrical heaters were installed atcanister) which houses the electrical heater elements; c. d.

Burleigh, R.H.

2010-01-01T23:59:59.000Z

42

Energy Savings and Breakeven Cost for Residential Heat Pump Water Heaters in the United States  

SciTech Connect (OSTI)

Heat pump water heaters (HPWHs) have recently reemerged in the U.S. residential water heating market and have the potential to provide homeowners with significant energy savings. However, there are questions as to the actual performance and energy savings potential of these units, in particular in regards to the heat pump's performance in unconditioned space and the impact of the heat pump on space heating and cooling loads when it is located in conditioned space. To help answer these questions, simulations were performed of a HPWH in both conditioned and unconditioned space at over 900 locations across the continental United States and Hawaii. Simulations included a Building America benchmark home so that any interaction between the HPWH and the home's HVAC equipment could be captured. Comparisons were performed to typical gas and electric water heaters to determine the energy savings potential and cost effectiveness of a HPWH relative to these technologies. HPWHs were found to have a significant source energy savings potential when replacing typical electric water heaters, but only saved source energy relative to gas water heater in the most favorable installation locations in the southern US. When replacing an electric water heater, the HPWH is likely to break even in California, the southern US, and parts of the northeast in most situations. However, the HPWH will only break even when replacing a gas water heater in a few southern states.

Maguire, J.; Burch, J.; Merrigan, T.; Ong, S.

2013-07-01T23:59:59.000Z

43

Heat Recovery Consideration for Process Heaters and Boilers  

E-Print Network [OSTI]

The largest single area for industrial energy conservation is in the improvement of combustion efficiencies for heaters and boilers. A number of methods can be employed to recover heat. The most common are by use of recuperative air preheaters...

Kumar, A.

1984-01-01T23:59:59.000Z

44

Heat Recovery Consideration for Process Heaters and Boilers  

E-Print Network [OSTI]

The largest single area for industrial energy conservation is in the improvement of combustion efficiencies for heaters and boilers. A number of methods can be employed to recover heat. The most common are by use of recuperative air preheaters...

Kumar, A.

1983-01-01T23:59:59.000Z

45

Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?  

E-Print Network [OSTI]

Domestic Electric Storage Water Heater (DESWH) Test Methodsbuilt for electric storage water heaters and heat pumps asthat electric storage tank water heaters will be replaced

Letschert, Virginie

2010-01-01T23:59:59.000Z

46

Georgia Power- Residential Solar and Heat Pump Water Heater Rebate (Georgia)  

Broader source: Energy.gov [DOE]

Georgia Power customers may be eligible for rebates up to $250 each toward the installation costs of a 50 gallon or greater solar water heater or heat pump water heater. The solar water heater or...

47

An International Survey of Electric Storage Tank Water Heater Efficiency and Standards  

SciTech Connect (OSTI)

Water heating is a main consumer of energy in households, especially in temperate and cold climates. In South Africa, where hot water is typically provided by electric resistance storage tank water heaters (geysers), water heating energy consumption exceeds cooking, refrigeration, and lighting to be the most consumptive single electric appliance in the home. A recent analysis for the Department of Trade and Industry (DTI) performed by the authors estimated that standing losses from electric geysers contributed over 1,000 kWh to the annual electricity bill for South African households that used them. In order to reduce this burden, the South African government is currently pursuing a programme of Energy Efficiency Standards and Labelling (EES&L) for electric appliances, including geysers. In addition, Eskom has a history of promoting heat pump water heaters (HPWH) through incentive programs, which can further reduce energy consumption. This paper provides a survey of international electric storage water heater test procedures and efficiency metrics which can serve as a reference for comparison with proposed geyser standards and ratings in South Africa. Additionally it provides a sample of efficiency technologies employed to improve the efficiency of electric storage water heaters, and outlines programs to promote adoption of improved efficiency. Finally, it surveys current programs used to promote HPWH and considers the potential for this technology to address peak demand more effectively than reduction of standby losses alone

Johnson, Alissa; Lutz, James; McNeil, Michael A.; Covary, Theo

2013-11-13T23:59:59.000Z

48

Ashland Electric Utility- Bright Way to Heat Water Loan  

Broader source: Energy.gov [DOE]

The City of Ashland Conservation Division offers a solar water heating program to residential electric customers who currently use an electric water heater. Under "The Bright Way to Heat Water...

49

Ashland Electric Utility- Bright Way to Heat Water Rebate  

Broader source: Energy.gov [DOE]

The City of Ashland Conservation Division offers a solar water heating program to its residential electric customers who currently use an electric water heater. Under "The Bright Way to Heat Water...

50

Applications Tests of Commercial Heat Pump Water Heaters  

E-Print Network [OSTI]

Field application tests have been conducted on three 4 to 6-ton commercial heat pump water heater systems in a restaurant, a coin-operated laundry, and an office building cafeteria in Atlanta. The units provide space cooling while rejecting heat...

Oshinski, J. N..; Abrams, D. W.

1987-01-01T23:59:59.000Z

51

Laboratory Performance Evaluation of Residential Integrated Heat Pump Water Heaters  

SciTech Connect (OSTI)

This report discusses how a significant opportunity for energy savings is domestic hot water heating, where an emerging technology has recently arrived in the U.S. market: the residential integrated heat pump water heater. A laboratory evaluation is presented of the five integrated HPWHs available in the U.S. today.

Sparn, B.; Hudon, K.; Christensen, D.

2011-09-01T23:59:59.000Z

52

Electrical noise characteristics of a doped silicon microcantilever heater-thermometer  

E-Print Network [OSTI]

Electrical noise characteristics of a doped silicon microcantilever heater-thermometer Elise A with resistive heater-thermometers,10­13 there is a lack of published reports on the electrical noise silicon heater- thermometer cantilevers.12 However, a key difference is that doped silicon heater-thermometers

King, William P.

53

Field Performance of Heat Pump Water Heaters in the Northeast, Massachusetts and Rhode Island (Fact Sheet)  

SciTech Connect (OSTI)

Heat pump water heaters (HPWHs) are finally entering the mainstream residential water heater market. Potential catalysts are increased consumer demand for higher energy efficiency electric water heating and a new Federal water heating standard that effectively mandates use of HPWHs for electric storage water heaters with nominal capacities greater than 55 gallons. When compared to electric resistance water heating, the energy and cost savings potential of HPWHs is tremendous. Converting all electric resistance water heaters to HPWHs could save American consumers 7.8 billion dollars annually ($182 per household) in water heating operating costs and cut annual residential source energy consumption for water heating by 0.70 quads. Steven Winter Associates, Inc. embarked on one of the first in situ studies of these newly released HPWH products through a partnership with two sponsoring electric utility companies, National Grid and NSTAR, and one sponsoring energy efficiency service program administrator, Cape Light Compact. Recent laboratory studies have measured performance of HPWHs under various operating conditions, but publicly available field studies have not been as available. This evaluation attempts to provide publicly available field data on new HPWHs by monitoring the performance of three recently released products (General Electric GeoSpring, A.O. Smith Voltex, and Stiebel Eltron Accelera 300). Fourteen HPWHs were installed in Massachusetts and Rhode Island and monitored for over a year. Of the 14 units, ten were General Electric models (50 gallon units), two were Stiebel Eltron models (80 gallon units), and two were A.O. Smith models (one 60-gallon and one 80-gallon unit).

Not Available

2013-12-01T23:59:59.000Z

54

Heat pump water heater and storage tank assembly  

DOE Patents [OSTI]

A water heater and storage tank assembly comprises a housing defining a chamber, an inlet for admitting cold water to the chamber, and an outlet for permitting flow of hot water from the chamber. A compressor is mounted on the housing and is removed from the chamber. A condenser comprises a tube adapted to receive refrigerant from the compressor, and winding around the chamber to impart heat to water in the chamber. An evaporator is mounted on the housing and removed from the chamber, the evaporator being adapted to receive refrigerant from the condenser and to discharge refrigerant to conduits in communication with the compressor. An electric resistance element extends into the chamber, and a thermostat is disposed in the chamber and is operative to sense water temperature and to actuate the resistance element upon the water temperature dropping to a selected level. The assembly includes a first connection at an external end of the inlet, a second connection at an external end of the outlet, and a third connection for connecting the resistance element, compressor and evaporator to an electrical power source.

Dieckmann, John T. (Belmont, MA); Nowicki, Brian J. (Watertown, MA); Teagan, W. Peter (Acton, MA); Zogg, Robert (Belmont, MA)

1999-09-07T23:59:59.000Z

55

Covered Product Category: Residential Heat Pump Water Heaters  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including residential heat pump water heaters, which are an ENERGY STAR®-qualified 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.

56

Economics of residential gas furnaces and water heaters in United States new construction market  

E-Print Network [OSTI]

and F. Southworh. (2004). Heat pump water heater technology:a larger market for heat pump water heaters (U.S. Departmentfurnace or heat pump and electric water heater (26%). (U.S.

Lekov, Alex B.

2010-01-01T23:59:59.000Z

57

Field Testing of Pre-Production Prototype Residential Heat Pump Water Heaters  

Broader source: Energy.gov [DOE]

Provides and overview of field testing of 18 pre-production prototype residential heat pump water heaters

58

Electric Blanket Delivers K.O. to Space Heater During #EnergyFaceoff...  

Office of Environmental Management (EM)

Electric Blanket Delivers K.O. to Space Heater During EnergyFaceoff Round Three Electric Blanket Delivers K.O. to Space Heater During EnergyFaceoff Round Three November 19, 2014...

59

NREL Tests Integrated Heat Pump Water Heater Performance in Different Climates (Fact Sheet)  

SciTech Connect (OSTI)

This technical highlight describes NREL tests to capture information about heat pump performance across a wide range of ambient conditions for five heat pump water heaters (HPWH). These water heaters have the potential to significantly reduce water heater energy use relative to traditional electric resistance water heaters. These tests have provided detailed performance data for these appliances, which have been used to evaluate the cost of saved energy as a function of climate. The performance of HPWHs is dependent on ambient air temperature and humidity and the logic controlling the heat pump and the backup resistance heaters. The laboratory tests were designed to measure each unit's performance across a range of air conditions and determine the specific logic controlling the two heat sources, which has a large effect on the comfort of the users and the energy efficiency of the system. Unlike other types of water heaters, HPWHs are both influenced by and have an effect on their surroundings. Since these effects are complex and different for virtually every house and climate region, creating an accurate HPWH model from the data gathered during the laboratory tests was a main goal of the project. Using the results from NREL's laboratory tests, such as the Coefficient of Performance (COP) curves for different air conditions as shown in Figure 1, an existing HPWH model is being modified to produce more accurate whole-house simulations. This will allow the interactions between the HPWH and the home's heating and cooling system to be evaluated in detail, for any climate region. Once these modeling capabilities are in place, a realistic cost-benefit analysis can be performed for a HPWH installation anywhere in the country. An accurate HPWH model will help to quantify the savings associated with installing a HPWH in the place of a standard electric water heater. In most locations, HPWHs are not yet a cost-effective alternative to natural gas water heaters. The detailed system performance maps that were developed by this testing program will be used to: (1) Target regions of the country that would benefit most from this technology; (2) Identify improvements in current systems to maximize homeowner cost savings; and (3) Explore opportunities for development of advanced hot water heating systems.

Not Available

2012-01-01T23:59:59.000Z

60

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 3, Water heaters, pool heaters, direct heating equipment, and mobile home furnaces  

SciTech Connect (OSTI)

This is Volume 3 in a series of documents on energy efficiency of consumer products. This volume discusses energy efficiency of water heaters. Water heaters are defined by NAECA as products that utilize oil, gas, or electricity to heat potable water for use outside the heater upon demand. These are major appliances, which use a large portion (18% on average) of total energy consumed per household (1). They differ from most other appliances in that they are usually installed in obscure locations as part of the plumbing and are ignored until they fail. Residential water heaters are capable of heating water up to 180{degrees}F, although the setpoints are usually set lower.

Not Available

1993-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Development of a Low Cost Heat Pump Water Heater - Second Prototype  

SciTech Connect (OSTI)

Since the 1980s various attempts have been made to apply the efficiency of heat pumps to water heating. The products generated in the 80s and 90s were not successful, due in part to a lack of reliability and difficulties with installation and servicing. At the turn of the century, EnvironMaster International (EMI) produced a heat pump water heater (HPWH) based on a design developed by Arthur D. Little (ADL), with subsequent developmental assistance from Oak Ridge National Laboratory (ORNL) and ADL. This design was a drop-in replacement for conventional electric water heaters. In field and durability testing conducted by ORNL, it proved to be reliable and saved on average more than 50% of the energy used by the best conventional electric water heater. However, the retail price set by EMI was very high, and it failed in the market. ORNL was tasked to examine commercially available HPWH product technology and manufacturing processes for cost saving opportunities. Several cost saving opportunities were found. To verify the feasibility of these cost saving measures, ORNL completed a conceptual design for an HPWH based on an immersed condenser coil that could be directly inserted into a standard water tank through a sleeve affixed to one of the standard penetrations at the top of the tank. After some experimentation, a prototype unit was built with a double-wall coil inserted into the tank. When tested it achieved an energy factor (EF) of 2.12 to 2.2 using DOE-specified test procedures. A.O. Smith contacted ORNL in May 2006 expressing their interest in the ORNL design. The prototype unit was shipped to A.O. Smith to be tested in their laboratory. After they completed their test, ORNL analyzed the raw test data provided by A.O. Smith and calculated the EF to be approximately 1.92. The electric resistance heating elements of a conventional electric water heater are typically retained in a heat pump water heater to provide auxiliary heating capacity in periods of high demand. A.O. Smith informed us that when they applied electric resistance backup heating, using the criterion that resistance heat would be applied whenever the upper thermostat saw water temperatures below the heater s nominal setpoint of 135oF, they found that the EF dropped to approximately 1.5. This is an extremely conservative criterion for backup resistance heating. In a field test of the previously mentioned EMI heat pump water heater, residential consumers found satisfactory performance when the criterion for use of electric resistance backup heating was the upper temperature dropping below the set point minus 27 degrees. Applying this less conservative criterion to the raw data from the original A.O. Smith EF tests indicates that electric resistance heating would never have come on during the test, and thus the EF would have remained in the vicinity of 1.9. A.O. Smith expressed concern about having an EF below 2, as that value triggers certain tax advantages and would assist in their marketing of the product. We believe that insertion of additional length of tubing plus a less conservative set point for electric resistance backup heating would remedy this concern. However, as of this writing, A.O. Smith has not decided to proceed with a commercial product.

Mei, V. C. [Oak Ridge National Laboratory (Retired); Craddick, William G [ORNL

2007-09-01T23:59:59.000Z

62

Warren RECC- Electric Water Heater Rebate  

Broader source: Energy.gov [DOE]

Warren Rural Electric Cooperative Corporation (RECC) provides service to customers in the south-central Kentucky counties of Ohio, Butler, Grayson, Edmonson, Warren, Simpson, Logan and Barren. Upon...

63

A COMPARISON OF LABORATORY AND FIELD-TEST MEASUREMENTS OF HEAT PUMP WATER HEATERS  

E-Print Network [OSTI]

#12;A COMPARISON OF LABORATORY AND FIELD-TEST MEASUREMENTS OF HEAT PUMP WATER HEATERS William P a heat pump water heater (HPWH). After developing the HPWH, a field-test plan was implemented whereby 20 evaluate this effect. #12;INTRODUCTION Domestic water heaters account for approximately 2.5 EJ (2.4 x 1015

Oak Ridge National Laboratory

64

High Efficiency R-744 Commercial Heat Pump Water Heaters  

SciTech Connect (OSTI)

The project investigated the development and improvement process of a R744 (CO2) commercial heat pump water heater (HPWH) package of approximately 35 kW. The improvement process covered all main components of the system. More specific the heat exchangers (Internal heat exchanger, Evaporator, Gas cooler) as well as the expansion device and the compressor were investigated. In addition, a comparison to a commercially available baseline R134a unit of the same capacity and footprint was made in order to compare performance as well as package size reduction potential.

Elbel, Dr. Stefan W.; Petersen, Michael

2013-04-25T23:59:59.000Z

65

Review of International Methods of Test to Rate the Efficiency of Water Heaters  

E-Print Network [OSTI]

gas and electric storage water heaters, heat-pump watersmall gas-fired storage water heaters with a large burner.such as electric storage water heaters, the comparison of

Lutz, Jim

2012-01-01T23:59:59.000Z

66

Measure Guideline: Heat Pump Water Heaters in New and Existing Homes  

SciTech Connect (OSTI)

This Building America Measure Guideline is intended for builders, contractors, homeowners, and policy-makers. This document is intended to explore the issues surrounding heat pump water heaters (HPWHs) to ensure that homeowners and contractors have the tools needed to appropriately and efficiently install HPWHs. Heat pump water heaters (HPWHs) promise to significantly reduce energy consumption for domestic hot water (DHW) over standard electric resistance water heaters (ERWHs). While ERWHs perform with energy factors (EFs) around 0.9, new HPWHs boast EFs upwards of 2.0. High energy factors in HPWHs are achieved by combining a vapor compression system, which extracts heat from the surrounding air at high efficiencies, with electric resistance element(s), which are better suited to meet large hot water demands. Swapping ERWHs with HPWHs could result in roughly 50% reduction in water heating energy consumption for 35.6% of all U.S. households. This Building America Measure Guideline is intended for builders, contractors, homeowners, and policy-makers. While HPWHs promise to significantly reduce energy use for DHW, proper installation, selection, and maintenance of HPWHs is required to ensure high operating efficiency and reliability. This document is intended to explore the issues surrounding HPWHs to ensure that homeowners and contractors have the tools needed to appropriately and efficiently install HPWHs. Section 1 of this guideline provides a brief description of HPWHs and their operation. Section 2 highlights the cost and energy savings of HPWHs as well as the variables that affect HPWH performance, reliability, and efficiency. Section 3 gives guidelines for proper installation and maintenance of HPWHs, selection criteria for locating HPWHs, and highlights of important differences between ERWH and HPWH installations. Throughout this document, CARB has included results from the evaluation of 14 heat pump water heaters (including three recently released HPWH products) installed in existing homes in the northeast region of the United States.

Shapiro, C.; Puttagunta, S.; Owens, D.

2012-02-01T23:59:59.000Z

67

Heat Recovery Considerations for Process Heaters and Boilers  

E-Print Network [OSTI]

) Chemicals (223) 0.81xlO 15 81xl0 6 3) Pulp & Paper (8) 1.30xlO 15 2.2xI0 6 4) ~leta1s (32) O.07xlO 15 6.4x10 6 O.28xl0 15 308 291xl0 6 2.46xlO 15 Sec =Specific energy consumption * Calculated as %reduction in SEC - value 10TOR "OUSI.. SEi...Heat Recovery Considerations for Process Heaters and Boilers Ash Kumar, Pennzoil Company, Shreveport, Louisiana The largest single area for industrial energy conservation is in the improvement of combustion efficiencies for heaters and boilers...

Kumar, A.

68

Water Heaters (Tankless Electric) | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment of Energy WhileTankless Electric - v1.0.xlsx More Documents &

69

Regional Variation in Residential Heat Pump Water Heater Performance in the U.S.: Preprint  

SciTech Connect (OSTI)

Residential heat pump water heaters (HPWHs) have recently reemerged on the U.S. market. These units have the potential to provide homeowners significant cost and energy savings. However, actual in use performance of a HPWH will vary significantly with climate, installation location, HVAC equipment, and hot water use. To determine what actual in use energy consumption of a HPWH may be in different regions of the U.S., annual simulations of both 50 and 80 gallon HPWHs as well as a standard electric water heater were performed for over 900 locations across the U.S. The simulations included a benchmark home to take into account interactions between the space conditioning equipment and the HPWH and a realistic hot water draw profile. It was found that the HPWH will always save some source energy when compared to a standard electric resistance water heater, although savings varies widely with location. In addition to looking at source energy savings, the breakeven cost (the net installed cost a HPWH would have to have to be a cost neutral replacement for a standard water heater) was also examined. The highest breakeven costs were seen in cases with high energy savings, such as the southeastern U.S., or high energy costs, such as New England and California. While the breakeven cost is higher for 80 gallon units than 50 gallon units, the higher net installed costs of an 80 gallon unit lead to the 50 gallon HPWHs being more likely to be cost effective.

Maguire, J.; Burch, J.; Merrigan, T.; Ong, S.

2014-01-01T23:59:59.000Z

70

Electric Water Heater Modeling and Control Strategies for Demand Response  

SciTech Connect (OSTI)

Abstract— Demand response (DR) has a great potential to provide balancing services at normal operating conditions and emergency support when a power system is subject to disturbances. Effective control strategies can significantly relieve the balancing burden of conventional generators and reduce investment on generation and transmission expansion. This paper is aimed at modeling electric water heaters (EWH) in households and tests their response to control strategies to implement DR. The open-loop response of EWH to a centralized signal is studied by adjusting temperature settings to provide regulation services; and two types of decentralized controllers are tested to provide frequency support following generator trips. EWH models are included in a simulation platform in DIgSILENT to perform electromechanical simulation, which contains 147 households in a distribution feeder. Simulation results show the dependence of EWH response on water heater usage . These results provide insight suggestions on the need of control strategies to achieve better performance for demand response implementation. Index Terms— Centralized control, decentralized control, demand response, electrical water heater, smart grid

Diao, Ruisheng; Lu, Shuai; Elizondo, Marcelo A.; Mayhorn, Ebony T.; Zhang, Yu; Samaan, Nader A.

2012-07-22T23:59:59.000Z

71

Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet)  

SciTech Connect (OSTI)

Over recent years, heat pump water heaters (HPWHs) have become more readily available and more widely adopted in the marketplace. For a 6-month period, the Building America team Consortium for Advanced Residential Buildings monitored the performance of a GE Geospring HPWH in Windermere, Florida. The study found that the HPWH performed 144% more efficiently than a traditional electric resistance water heater, saving approximately 64% on water heating annually. The monitoring showed that the domestic hot water draw was a primary factor affecting the system's operating efficiency.

Metzger, C.; Puttagunta, S.; Williamson, J.

2013-11-01T23:59:59.000Z

72

Grouped exposed metal heaters  

DOE Patents [OSTI]

A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, MY); Watkins, Ronnie Wade (Cypress, TX)

2010-11-09T23:59:59.000Z

73

Grouped exposed metal heaters  

DOE Patents [OSTI]

A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, ML); Watkins, Ronnie Wade (Cypress, TX)

2012-07-31T23:59:59.000Z

74

Heat pump water heater and method of making the same  

DOE Patents [OSTI]

An improved heat pump water heater wherein the condenser assembly of the heat pump is inserted into the water tank through an existing opening in the top of the tank, the assembly comprising a tube-in-a-tube construction with an elongated cylindrical outer body heat exchanger having a closed bottom with the superheated refrigerant that exits the compressor of the heat pump entering the top of the outer body. As the refrigerant condenses along the interior surface of the outer body, the heat from the refrigerant is transferred to the water through the outer body. The refrigerant then enters the bottom of an inner body coaxially disposed within the outer body and exits the top of the inner body into the refrigerant conduit leading into the expansion device of the heat pump. The outer body, in a second embodiment of the invention, acts not only as a heat exchanger but also as the sacrificial anode in the water tank by being constructed of a metal which is more likely to corrode than the metal of the tank.

Mei, Viung C. (Oak Ridge, TN); Tomlinson, John J. (Knoxville, TN); Chen, Fang C. (Knoxville, TN)

2001-01-01T23:59:59.000Z

75

Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?  

E-Print Network [OSTI]

replaced with heat pump water heaters (efficiency of 250%).electric storage water heaters and heat pumps as shown infor Electric Water Heaters and Heat Pumps End Use Elec WH HP

Letschert, Virginie

2010-01-01T23:59:59.000Z

76

Applications of Commercial Heat Pump Water Heaters in Hot, Humid Climates  

E-Print Network [OSTI]

Heat pump water heaters can provide high-efficiency water heating and supplemental space cooling and dehumidification in commercial buildings throughout the United States. They are particularly attractive in hot, humid areas where cooling loads...

Johnson, K. F.; Shedd, A. C.

77

Energy Conservation Program for Consumer Products: Energy Conservation Standards for Direct Heating Equipment and Pool Heaters, Request for Information  

Broader source: Energy.gov [DOE]

Energy Conservation Program for Consumer Products: Energy Conservation Standards for Direct Heating Equipment and Pool Heaters, Request for Information

78

Tri-County Electric Cooperative- Energy Efficient Water Heater Rebate Program  

Broader source: Energy.gov [DOE]

Tri-County Electric Cooperative offers a $75 rebate on the purchase of energy-efficient electric water heaters. The rebate is valid for new or replacement units which have an Energy Factor Rating...

79

Integrated exhaust and electrically heated particulate filter regeneration systems  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter that includes multiple zones. An electrical heater includes heater segments that are associated with respective ones of the zones. The electrical heater is arranged upstream from and proximate with the PM filter. A post-fuel injection system injects fuel into at least one of a cylinder of an engine and an exhaust system. A control module is configured to operate in a first mode that includes activating the electrical heater to heat exhaust of the engine. The control module is also configured to operate in a second mode that includes activating the post-injection system to heat the exhaust. The control module selectively operates in at least one of the first mode and the second mode.

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

2013-01-08T23:59:59.000Z

80

Development of Environmentally Benign Heat Pump Water Heaters for the US Market  

SciTech Connect (OSTI)

Improving energy efficiency in water heating applications is important to the nation's energy strategies. Water heating in residential and commercial buildings accounts for about 10% of U.S. buildings energy consumption. Heat pump water heating (HPWH) technology is a significant breakthrough in energy efficiency, as an alternative to electric resistance water heating. Heat pump technology has shown acceptable payback period with proper incentives and successful market penetration is emerging. However, current HPWH require the use of refrigerants with high Global Warming Potential (GWP). Furthermore, current system designs depend greatly on the backup resistance heaters when the ambient temperature is below freezing or when hot water demand increases. Finally, the performance of current HPWH technology degrades greatly as the water set point temperature exceeds 330 K. This paper presents the potential for carbon dioxide, CO2, as a natural, environmentally benign alternative refrigerant for HPWH technology. In this paper, we first describe the system design, implications and opportunities of operating a transcritical cycle. Next, a prototype CO2 HPWH design featuring flexible component evaluation capability is described. The experimental setup and results are then illustrated followed by a brief discussion on the measured system performance. The paper ends with conclusions and recommendations for the development of CO2 heat pump water heating technology suitable for the U.S. market.

Abdelaziz, Omar [ORNL] [ORNL; Wang, Kai [ORNL] [ORNL; Vineyard, Edward Allan [ORNL] [ORNL; Roetker, Jack [General Electric - Appliance Park] [General Electric - Appliance Park

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Water Heating Requirements – Overview Page 5-1 5. Water Heating Requirements 5.1 Overview 5  

E-Print Network [OSTI]

. Electric heat pump water heaters, however, are closer to the efficiency of typical gas systems, because

unknown authors

82

Alliant Energy Interstate Power and Light (Gas and Electric)...  

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

Replacement: 20 Freezer: 25 Room Air Conditioner: 25 Water Heater: 50 Electric Heat Pump Water Heaters: 100 Circulating Fans: 25 - 75 Milkers and Heat Reclaimers: 5...

83

HVAC vs. Space Heaters: Which is More Efficient? | Department...  

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

Let's start with a basic tenet: electric space heaters are less efficient than HVAC systems. I cannot replace my heating system with room heaters if I want to save money....

84

Reliable, Economic, Efficient CO2 Heat Pump Water Heater for North America  

SciTech Connect (OSTI)

Adoption of heat pump water heating technology for commercial hot water could save up to 0.4 quads of energy and 5 million metric tons of CO2 production annually in North America, but industry perception is that this technology does not offer adequate performance or reliability and comes at too high of a cost. Development and demonstration of a CO2 heat pump water heater is proposed to reduce these barriers to adoption. Three major themes are addressed: market analysis to understand barriers to adoption, use of advanced reliability models to design optimum qualification test plans, and field testing of two phases of water heater prototypes. Market experts claim that beyond good performance, market adoption requires 'drop and forget' system reliability and a six month payback of first costs. Performance, reliability and cost targets are determined and reliability models are developed to evaluate the minimum testing required to meet reliability targets. Three phase 1 prototypes are designed and installed in the field. Based on results from these trials a product specification is developed and a second phase of five field trial units are built and installed. These eight units accumulate 11 unit-years of service including 15,650 hours and 25,242 cycles of compressor operation. Performance targets can be met. An availability of 60% is achieved and the capability to achieve >90% is demonstrated, but overall reliability is below target, with an average of 3.6 failures/unit-year on the phase 2 demonstration. Most reliability issues are shown to be common to new HVAC products, giving high confidence in mature product reliability, but the need for further work to minimize leaks and ensure reliability of the electronic expansion valve is clear. First cost is projected to be above target, leading to an expectation of 8-24 month payback when substituted for an electric water heater. Despite not meeting all targets, arguments are made that an industry leader could sufficiently develop this technology to impact the water heater market in the near term.

Radcliff, Thomas D; Sienel, Tobias; Huff, Hans-Joachim; Thompson, Adrian; Sadegh, Payman; Olsommer, Benoit; Park, Young

2006-12-31T23:59:59.000Z

85

Modeling of Electric Water Heaters for Demand Response: A Baseline PDE Model  

SciTech Connect (OSTI)

Demand response (DR)control can effectively relieve balancing and frequency regulation burdens on conventional generators, facilitate integrating more renewable energy, and reduce generation and transmission investments needed to meet peak demands. Electric water heaters (EWHs) have a great potential in implementing DR control strategies because: (a) the EWH power consumption has a high correlation with daily load patterns; (b) they constitute a significant percentage of domestic electrical load; (c) the heating element is a resistor, without reactive power consumption; and (d) they can be used as energy storage devices when needed. Accurately modeling the dynamic behavior of EWHs is essential for designing DR controls. Various water heater models, simplified to different extents, were published in the literature; however, few of them were validated against field measurements, which may result in inaccuracy when implementing DR controls. In this paper, a partial differential equation physics-based model, developed to capture detailed temperature profiles at different tank locations, is validated against field test data for more than 10 days. The developed model shows very good performance in capturing water thermal dynamics for benchmark testing purposes

Xu, Zhijie; Diao, Ruisheng; Lu, Shuai; Lian, Jianming; Zhang, Yu

2014-09-05T23:59:59.000Z

86

Clay Electric Cooperative, Inc- Energy Smart Solar Water Heater Rebate Program  

Broader source: Energy.gov [DOE]

Clay Electric Cooperative (CEC) provides a rebate of $0.01 per BTU output to its residential members when they purchase qualified solar water heaters. This rebate is capped at 60,000 BTUs per...

87

Gibson Electric Membership Corporation- Residential Energy Efficient Water Heater Loan Program  

Broader source: Energy.gov [DOE]

Gibson Electric Membership Corporation provides loans to its residential customers to finance new, energy efficient water heaters. The loans are interest-free and can be paid off in as many as 3...

88

Blue Ridge Mountain Electric Membership Corporation- Water Heater Rebate Program  

Broader source: Energy.gov [DOE]

Blue Ridge Mountain EMC and TVA, its power supplier, offer the Energy Right and In Home Energy Evaluation programs to qualified members. To qualify for water heater rebates provided by the Energy...

89

OPTIMIZATION OF TRANSIENT HEATER SETTINGS TO PROVIDE SPATIALLY UNIFORM HEATING IN  

E-Print Network [OSTI]

in foundries, baking ovens that cook food, infrared heating systems that cure painted surfaces, and rapidOPTIMIZATION OF TRANSIENT HEATER SETTINGS TO PROVIDE SPATIALLY UNIFORM HEATING IN MANUFACTURING PROCESSES INVOLVING RADIANT HEATING K. J. Daun, J. R. Howell, and D. P. Morton Department of Mechanical

Morton, David

90

Development of a Low Cost Heat Pump Water Heater - First Prototype  

SciTech Connect (OSTI)

Until now the heat pump water heater (HPWH) has been a technical success but a market failure because of its high initial cost. Oak Ridge National Laboratory (ORNL) was tasked to examine commercially available HPWH product technology and manufacturing processes for cost saving opportunities. ORNL was also tasked to verify the technical feasibility of the cost saving opportunities where necessary and appropriate. The objective was to retain most of the HPWH s energy saving performance while reducing cost and simple payback period to approximately three years in a residential application. Several cost saving opportunities were found. Immersing the HPWH condenser directly into the tank allowed the water-circulating pump to be eliminated and a standard electric resistance storage water heater to be used. In addition, designs could be based on refrigerator compressors. Standard water heaters and refrigerator compressors are both reliable, mass produced, and low cost. To verify the feasibility of these cost saving measures, ORNL completed a conceptual design for an HPWH based on an immersed condenser coil that could be directly inserted into a standard water heater tank through a sleeve affixed to one of the standard penetrations at the top of the tank. The sleeve contour causes the bayonet-style condenser to helix while being pushed into the tank, enabling a condenser of sufficient heat transfer surface area to be inserted. Based on this design, ORNL fabricated the first laboratory prototype and completed preliminary laboratory tests in accordance with the DOE Simulated Use Test Procedure. Hardening during double-wall condenser fabrication was not overcome, so the prototype is single-walled with a liner. The prototype unit was found to have an energy factor of 2.02, verifying that the low-cost design retains most of the HPWH s energy saving performance. Industry involvement is being sought to resolve the fabrication issue and quantify progress on reducing cost and simple payback period to approximately three years in a residential application. This report provides information on the design, prototype construction, laboratory test data, and analyses of this HPWH.

Mei, V. C. [Oak Ridge National Laboratory (Retired); Tomlinson, J. J. [Oak Ridge National Laboratory (Retired)

2007-09-01T23:59:59.000Z

91

Comparative evaluation of the impacts of domestic gas and electric heat pump heating on air pollution in California. Final report  

SciTech Connect (OSTI)

Residential space and water heating accounts for approximately 12% of California`s and 15% of the United States, energy consumption. most Of the residential heating is by direct use of natural gas. combustion of natural gas is a contributor to the overall air pollution,, especially CO and NO{sub x} in the urban areas. Another efficient method for domestic water and space heating is use of electric heat pumps, the most popular category of which uses air as its heat source. Electric heat pumps do not emit air pollutants at the point of use, but use electric power, which is a major contributor to air pollution at its point of generation from fossil fuels. It is the specific objective of this report to evaluate and compare the energy efficiency and source air pollutants of natural gas heaters and electric heat pumps used for domestic heating. Effect of replacing natural gas heaters with electric heat pumps on air pollutant emissions due to domestic heating in two urban areas and in California as a whole has also been evaluated. The analysis shows that with the present state of technology, electric heat pumps have higher heating efficiencies than natural gas heaters. Considering the current electricity generation mix in the US, electric heat pumps produce two to four times more NO{sub x}, much less CO, and comparable amount of CO{sub 2} per unit of useful heating energy compared to natural gas heaters. With California mix, electric heat pumps produce comparable NO{sub x} and much less CO and approximately 30% less CO{sub 2} per unit heat output. Replacement of natural gas heaters with electric heat pumps will slightly increase the overall NO{sub x}, and reduce CO and CO{sub 2} emissions in California. The effect of advanced technology power generation and heat pump heating has also been analyzed.

Ganji, A. [San Francisco State Univ., CA (United States). Div. of Engineering

1992-07-01T23:59:59.000Z

92

Comparative evaluation of the impacts of domestic gas and electric heat pump heating on air pollution in California  

SciTech Connect (OSTI)

Residential space and water heating accounts for approximately 12% of California's and 15% of the United States, energy consumption. most Of the residential heating is by direct use of natural gas. combustion of natural gas is a contributor to the overall air pollution,, especially CO and NO{sub x} in the urban areas. Another efficient method for domestic water and space heating is use of electric heat pumps, the most popular category of which uses air as its heat source. Electric heat pumps do not emit air pollutants at the point of use, but use electric power, which is a major contributor to air pollution at its point of generation from fossil fuels. It is the specific objective of this report to evaluate and compare the energy efficiency and source air pollutants of natural gas heaters and electric heat pumps used for domestic heating. Effect of replacing natural gas heaters with electric heat pumps on air pollutant emissions due to domestic heating in two urban areas and in California as a whole has also been evaluated. The analysis shows that with the present state of technology, electric heat pumps have higher heating efficiencies than natural gas heaters. Considering the current electricity generation mix in the US, electric heat pumps produce two to four times more NO{sub x}, much less CO, and comparable amount of CO{sub 2} per unit of useful heating energy compared to natural gas heaters. With California mix, electric heat pumps produce comparable NO{sub x} and much less CO and approximately 30% less CO{sub 2} per unit heat output. Replacement of natural gas heaters with electric heat pumps will slightly increase the overall NO{sub x}, and reduce CO and CO{sub 2} emissions in California. The effect of advanced technology power generation and heat pump heating has also been analyzed.

Ganji, A. (San Francisco State Univ., CA (United States). Div. of Engineering)

1992-07-01T23:59:59.000Z

93

Heat Pump Water Heater Technology: Experiences of Residential Consumers and Utilities  

SciTech Connect (OSTI)

This paper presents a case study of the residential heat pump water heater (HPWH) market. Its principal purpose is to evaluate the extent to which the HPWH will penetrate the residential market sector, given current market trends, producer and consumer attributes, and technical parameters. The report's secondary purpose is to gather background information leading to a generic framework for conducting market analyses of technologies. This framework can be used to compare readiness and to factor attributes of market demand back into product design. This study is a rapid prototype analysis rather than a detailed case analysis. For this reason, primary data collection was limited and reliance on secondary sources was extensive. Despite having met its technical goals and having been on the market for twenty years, the HPWH has had virtually no impact on contributing to the nation's water heating. In some cases, HPWH reliability and quality control are well below market expectations, and early units developed a reputation for unreliability, especially when measured against conventional water heaters. In addition to reliability problems, first costs of HPWH units can be three to five times higher than conventional units. Without a solid, well-managed business plan, most consumers will not be drawn to this product. This is unfortunate. Despite its higher first costs, efficiency of an HPWH is double that of a conventional water heater. The HPWH also offers an attractive payback period of two to five years, depending on hot water usage. On a strict life-cycle basis it supplies hot water very cost effectively. Water heating accounts for 17% of the nation's residential consumption of electricity (see chart at left)--water heating is second only to space heating in total residential energy use. Simple arithmetic suggests that this figure could be reduced to the extent HPWH technology displaces conventional water heating. In addition, the HPWH offers other benefits. Because it produces hot water by extracting heat from the air it tends to dehumidify and cool the room in which it is placed. Moreover, it tends to spread the water heating load across utility non-peak periods. Thus, electric utilities with peak load issues could justify internal programs to promote this technology to residential and commercial customers. For practical purposes, consumers are indifferent to the manner in which water is heated but are very interested in product attributes such as initial first cost, operating cost, performance, serviceability, product size, and installation costs. Thus, the principal drivers for penetrating markets are demonstrating reliability, leveraging the dehumidification attributes of the HPWH, and creating programs that embrace life-cycle cost principles. To supplement this, a product warranty with scrupulous quality control should be implemented; first-price reduction through engineering, perhaps by reducing level of energy efficiency, should be pursued; and niche markets should be courted. The first step toward market penetration is to address the HPWH's performance reliability. Next, the manufacturers could engage select utilities to aggressively market the HPWH. A good approach would be to target distinct segments of the market with the potential for the highest benefits from the technology. Communications media that address performance issues should be developed. When marketing to new home builders, the HPWH could be introduced as part of an energy-efficient package offered as a standard feature by builders of new homes within a community. Conducting focus groups across the United States to gather input on HPWH consumer values will feed useful data back to the manufacturers. ''Renaming'' and ''repackaging'' the HPWH to improve consumer perception, appliance aesthetics, and name recognition should be considered. Once an increased sales volume is achieved, the manufacturers should reinvest in R&D to lower the price of the units. The manufacturers should work with ''do-it-yourself'' (DIY) stores to facilitate introduction of th

Ashdown, BG

2004-08-04T23:59:59.000Z

94

Method and apparatus for enhanced heat recovery from steam generators and water heaters  

DOE Patents [OSTI]

A heating system having a steam generator or water heater, at least one economizer, at least one condenser and at least one oxidant heater arranged in a manner so as to reduce the temperature and humidity of the exhaust gas (flue gas) stream and recover a major portion of the associated sensible and latent heat. The recovered heat is returned to the steam generator or water heater so as to increase the quantity of steam generated or water heated per quantity of fuel consumed. In addition, a portion of the water vapor produced by combustion of fuel is reclaimed for use as feed water, thereby reducing the make-up water requirement for the system.

Knight, Richard A.; Rabovitser, Iosif K.; Wang, Dexin

2006-06-27T23:59:59.000Z

95

NREL evaluates energy savings potential of heat pump water heaters in homes throughout all U.S. climate zones.  

E-Print Network [OSTI]

NREL evaluates energy savings potential of heat pump water heaters in homes throughout all U.S. climate zones. Heat pump water heaters (HPWHs) have the potential to significantly reduce energy use is a function of surrounding air temperature, humidity, hot water usage, and the logic controlling the heat pump

96

West Village Community: Quality Management Processes and Preliminary Heat Pump Water Heater Performance  

SciTech Connect (OSTI)

West Village, a multi-use project underway at the University of California Davis, represents a ground-breaking sustainable community incorporating energy efficiency measures and on-site renewable generation to achieve community-level Zero Net Energy (ZNE) goals. The project when complete will provide housing for students, faculty, and staff with a vision to minimize the community's impact on energy use by reducing building energy use, providing on-site generation, and encouraging alternative forms of transportation. This focus of this research is on the 192 student apartments that were completed in 2011 under Phase I of the West Village multi-year project. The numerous aggressive energy efficiency measures implemented result in estimated source energy savings of 37% over the B10 Benchmark. There are two primary objectives of this research. The first is to evaluate performance and efficiency of the central heat pump water heaters as a strategy to provide efficient electric water heating for net-zero all-electric buildings and where natural gas is not available on site. In addition, effectiveness of the quality assurance and quality control processes implemented to ensure proper system commissioning and to meet program participation requirements is evaluated. Recommendations for improvements that could improve successful implementation for large-scale, high performance communities are identified.

Dakin, B.; Backman, C.; Hoeschele, M.; German, A.

2012-11-01T23:59:59.000Z

97

Refrigerant charge management in a heat pump water heater  

DOE Patents [OSTI]

Heat pumps that heat or cool a space and that also heat water, refrigerant management systems for such heat pumps, methods of managing refrigerant charge, and methods for heating and cooling a space and heating water. Various embodiments deliver refrigerant gas to a heat exchanger that is not needed for transferring heat, drive liquid refrigerant out of that heat exchanger, isolate that heat exchanger against additional refrigerant flowing into it, and operate the heat pump while the heat exchanger is isolated. The heat exchanger can be isolated by closing an electronic expansion valve, actuating a refrigerant management valve, or both. Refrigerant charge can be controlled or adjusted by controlling how much liquid refrigerant is driven from the heat exchanger, by letting refrigerant back into the heat exchanger, or both. Heat pumps can be operated in different modes of operation, and segments of refrigerant conduit can be interconnected with various components.

Chen, Jie; Hampton, Justin W.

2014-06-24T23:59:59.000Z

98

Catalytic combustion of very lean mixtures in a reverse flow reactor using an internal electrical heater  

SciTech Connect (OSTI)

An experimental study of the reverse flow reactor, equipped with an internal electrical heater, for the autothermal combustion of very dilute organic compounds, in particular ethene, propane, and their mixtures, has been carried out. The influence of several operating parameters like electrical heater power, cycle period, chemical character, and concentration of the pollutants on the maximum temperature and on the shape of temperature profiles in the stationary state is discussed. Experimental results show that an internal electrical heater can be successfully used to oxidize completely very lean mixtures which would not be able to maintain an autothermal process only by themselves. The predictions with a heterogeneous one-dimensional model without using fit parameters show a good agreement with experiments except for critical situations.

Cunill, F.; Beld, L. van de; Westerterp, K.R. [Univ. of Twente, Enschede (Netherlands)] [Univ. of Twente, Enschede (Netherlands)

1997-10-01T23:59:59.000Z

99

Space Heaters The University recognizes that individuals have different levels of comfort associated with  

E-Print Network [OSTI]

for space heating. 14. Do not use space heaters or any other electric appliance around water. 15Space Heaters The University recognizes that individuals have different levels of comfort associated with temperature and heat. The use of electric space heaters as a temporary measure is permitted

de Lijser, Peter

100

Heat Pump Water Heaters and American Homes: A Good Fit?  

E-Print Network [OSTI]

Central Air Conditioners and Heat Pumps Including. May,pump technology to extract heat from the surrounding air (air flow requirements of HPWHs increase installation costs. Introduction A heat pump

Franco, Victor

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Development of High Efficiency Carbon Dioxide Commercial Heat Pump Water Heater  

SciTech Connect (OSTI)

Although heat pump water heaters are today widely accepted in both Japan and Europe, where energy costs are high and government incentives for their use exist, acceptance of such products in the US has been limited. While this trend is slowly changing with the introduction of heat pump water heaters into the residential market, but acceptance remains low in the commercial sector. The objective of the presented work is the development of a high efficiency R744 heat pump water heater for commercial applications with effective utilization of the cooling capability for air conditioning and/or refrigeration. The ultimate goal is to achieve total system COP of up to 8. This unit will be targeted at commercial use where some cooling load is typically needed year round, such as restaurants, hotels, nursing homes, and hospitals. This paper presents the performance results from the development of four R744 commercial heat pump water heater packages of approximately 35 kW and comparison to a commercially available baseline R134a unit of the same capacity and footprint. In addition, the influences of an internal heat exchanger and an enhanced evaporator on the system performance are described and recommendations are made for further improvements of the R744 system.

Michael PETERSEN; Chad D. BOWERS; Stefan ELBEL; Pega HRNJAK

2012-07-01T23:59:59.000Z

102

Zoned electrical heater arranged in spaced relationship from particulate filter  

DOE Patents [OSTI]

A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

Gonze, Eugene V [Pinckney, MI

2011-11-15T23:59:59.000Z

103

NEXT GENERATION COMMERCIAL HEAT PUMPWATER HEATER USING CARBON DIOXIDE USING DIFFERENT IMPROVEMENT APPROACHES  

SciTech Connect (OSTI)

Although heat pump water heaters are today widely accepted in Japan, where energy costs are high and government incentives for their use exist, acceptance of such a product in the U.S. has been slow. This trend is slowly changing with the introduction of heat pump water heaters into the residential market, but remains in the commercial sector. Barriers to heat pump water heater acceptance in the commercial market have historically been performance, reliability and first/operating costs. The use of carbon dioxide (R744) as the refrigerant in such a system can improve performance for relatively small increase in initial cost and make this technology more appealing. What makes R744 an excellent candidate for use in heat pump water heaters is not only the wide range of ambient temperatures within which it can operate, but also the excellent ability to match water to refrigerant temperatures on the high side, resulting in very high exit water temperatures of up to 82�ºC, as required by sanitary codes in the U.S. (Food Code, 2005), in a single pass, temperatures that are much more difficult to reach with other refrigerants. This can be especially attractive in applications where this water is used for the purpose of sanitation. While reliability has also been of concern historically, dramatic improvements have been made over the last several years through research done in the automotive industry and commercialization of R744 technology in residential water heating mainly in Japan. This paper presents the performance results from the development of an R744 commercial heat pump water heater of approximately 35 kW and a comparison to a baseline R134a unit of the same capacity and footprint. In addition, recommendations are made for further improvements of the R744 system which could result in possible energy savings of up to 20 %.

Chad Bowers; Michael Petersen; Stefan Elbel; Pega Hrnjak

2012-04-01T23:59:59.000Z

104

PERFORMANCE IMPROVEMENTS IN COMMERCIAL HEAT PUMP WATER HEATERS USING CARBON DIOXIDE  

SciTech Connect (OSTI)

Although heat pump water heaters are today widely accepted in Japan, where energy costs are high and government incentives for their use exist, acceptance of such a product in the U.S. has been slow. This trend is slowly changing with the introduction of heat pump water heaters into the residential market, but remains in the commercial sector. Barriers to heat pump water heater acceptance in the commercial market have historically been performance, reliability and first/operating costs. The use of carbon dioxide (R744) as the refrigerant in such a system can improve performance for relatively small increase in initial cost and make this technology more appealing. What makes R744 an excellent candidate for use in heat pump water heaters is not only the wide range of ambient temperatures within which it can operate, but also the excellent ability to match water to refrigerant temperatures on the high side, resulting in very high exit water temperatures of up to 82�ºC (180�ºF), as required by sanitary codes in the U.S.(Food Code, 2005), in a single pass, temperatures that are much more difficult to reach with other refrigerants. This can be especially attractive in applications where this water is used for the purpose of sanitation. While reliability has also been of concern historically, dramatic improvements have been made over the last several years through research done in the automotive industry and commercialization of R744 technology in residential water heating mainly in Japan. This paper presents the performance results from the development of an R744 commercial heat pump water heater of approximately 35kW and a comparison to a baseline R134a unit of the same capacity and footprint. In addition, recommendations are made for further improvements of the R744 system which could result in possible energy savings of up to 20%.

BOWERS C.D.; ELBEL S.; PETERSEN M.; HRNJAK P.S.

2011-07-01T23:59:59.000Z

105

ISSUANCE 2014-12-23: Energy Conservation Program for Consumer Products: Test Procedures for Direct Heating Equipment and Pool Heaters, Final Rule  

Broader source: Energy.gov [DOE]

Energy Conservation Program for Consumer Products: Test Procedures for Direct Heating Equipment and Pool Heaters, Final Rule

106

E-Print Network 3.0 - air heater duct Sample Search Results  

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

15542 Fuel-Fired Radiant Heaters - RESERVED 15543 Fuel-Fired Unit Heaters... Electric Heating Cables -RESERVED 15785 Air-to-Air Energy Recovery Units - RESERVED 15815 Metal Ducts...

107

Generator powered electrically heated diesel particulate filter  

DOE Patents [OSTI]

A control circuit for a vehicle powertrain includes a switch that selectivity interrupts current flow between a first terminal and a second terminal. A first power source provides power to the first terminal and a second power source provides power to the second terminal and to a heater of a heated diesel particulate filter (DPF). The switch is opened during a DPF regeneration cycle to prevent the first power source from being loaded by the heater while the heater is energized.

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

2014-03-18T23:59:59.000Z

108

Parallel heater system for subsurface formations  

DOE Patents [OSTI]

A heating system for a subsurface formation is disclosed. The system includes a plurality of substantially horizontally oriented or inclined heater sections located in a hydrocarbon containing layer in the formation. At least a portion of two of the heater sections are substantially parallel to each other. The ends of at least two of the heater sections in the layer are electrically coupled to a substantially horizontal, or inclined, electrical conductor oriented substantially perpendicular to the ends of the at least two heater sections.

Harris, Christopher Kelvin (Houston, TX); Karanikas, John Michael (Houston, TX); Nguyen, Scott Vinh (Houston, TX)

2011-10-25T23:59:59.000Z

109

Review of International Methods of Test to Rate the Efficiency of Water Heaters  

E-Print Network [OSTI]

water heaters, heat-pump water heaters, and instantaneous (Wasted water Solar Heat pump water heater Australia/New

Lutz, Jim

2012-01-01T23:59:59.000Z

110

Selecting a new water heater  

SciTech Connect (OSTI)

This fact sheet describes the types of water heaters available (storage water heaters, demand water heaters, heat pump water heaters, tankless coil and indirect water heaters, and solar water heaters). The criteria for selection are discussed. These are capacity, efficiency rating, and cost. A resource list is provided for further information.

NONE

1995-03-01T23:59:59.000Z

111

Covered Product Category: Residential Heat Pump Water Heaters...  

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

used for many years for space heating and cooling. It can be found in small and large products alike, such as window air conditioners used in homes through large rooftop units...

112

Linn County Rural Electric Cooperative- Solar Water Heater Rebate Program  

Broader source: Energy.gov [DOE]

Linn County Rural Electric Cooperative Association (Linn County RECA) is a member-owned cooperative. To encourage energy efficiency, Linn County offers a number of rebates to commercial,...

113

Development and Validation of a Gas-Fired Residential Heat Pump Water Heater - Final Report  

SciTech Connect (OSTI)

For gas-fired residential water heating, the U.S. and Canada is predominantly supplied by minimum efficiency storage water heaters with Energy Factors (EF) in the range of 0.59 to 0.62. Higher efficiency and higher cost ($700 - $2,000) options serve about 15% of the market, but still have EFs below 1.0, ranging from 0.65 to 0.95. To develop a new class of water heating products that exceeds the traditional limit of thermal efficiency, the project team designed and demonstrated a packaged water heater driven by a gas-fired ammonia-water absorption heat pump. This gas-fired heat pump water heater can achieve EFs of 1.3 or higher, at a consumer cost of $2,000 or less. Led by Stone Mountain Technologies Inc. (SMTI), with support from A.O. Smith, the Gas Technology Institute (GTI), and Georgia Tech, the cross-functional team completed research and development tasks including cycle modeling, breadboard evaluation of two cycles and two heat exchanger classes, heat pump/storage tank integration, compact solution pump development, combustion system specification, and evaluation of packaged prototype GHPWHs. The heat pump system extracts low grade heat from the ambient air and produces high grade heat suitable for heating water in a storage tank for domestic use. Product features that include conventional installation practices, standard footprint and reasonable economic payback, position the technology to gain significant market penetration, resulting in a large reduction of energy use and greenhouse gas emissions from domestic hot water production.

Michael Garrabrant; Roger Stout; Paul Glanville; Janice Fitzgerald; Chris Keinath

2013-01-21T23:59:59.000Z

114

Multi-step heater deployment in a subsurface formation  

DOE Patents [OSTI]

A method for installing a horizontal or inclined subsurface heater includes placing a heating section of a heater in a horizontal or inclined section of a wellbore with an installation tool. The tool is uncoupled from the heating section. A lead in section is mechanically and electrically coupled to the heating section of the heater. The lead-in section is located in an angled or vertical section of the wellbore.

Mason, Stanley Leroy (Allen, TX)

2012-04-03T23:59:59.000Z

115

Expert Meeting Report: Recommendations for Applying Water Heaters in Combination Space and Domestic Water Heating Systems  

SciTech Connect (OSTI)

The topic of this meeting was 'Recommendations For Applying Water Heaters In Combination Space And Domestic Water Heating Systems.' Presentations and discussions centered on the design, performance, and maintenance of these combination systems, with the goal of developing foundational information toward the development of a Building America Measure Guideline on this topic. The meeting was held at the Westford Regency Hotel, in Westford, Massachusetts on 7/31/2011.

Rudd, A.; Ueno, K.; Bergey, D.; Osser, R.

2012-07-01T23:59:59.000Z

116

Performance Analysis of a Transcritical CO2 Heat Pump Water Heater Incorporating a Brazed-Plate Gas-cooler.  

E-Print Network [OSTI]

??This study focuses on the experimental testing and numerical modeling of a 4.5 kW transcritical CO2 heat pump water heater at Queen’s University in the… (more)

Murray, PORTIA

2015-01-01T23:59:59.000Z

117

Heat Recovery Considerations for Process Heaters and Boilers  

E-Print Network [OSTI]

and boilere. A number of methods can be I~loyed to recover heat. The moat COI8)D are by use of recuperative air preheat.'la, regenerative air preheate'la and economizers. Relative advantages and applicability of the three IDIthoda are discuased... be designed for any steam pres~ur~, including sup~rc.riti('al, "1. A wic1er range ur- dcs-ign::. LS . J. Hore eificient that a iire-tub~ unit. 4. They do not l~nd th~m5elves to cOul in~) o:;!lo:;!-? vated...

Kumar, A.

118

Subsurface connection methods for subsurface heaters  

DOE Patents [OSTI]

A system for heating a subsurface formation is described. The system includes a first elongated heater in a first opening in the formation. The first elongated heater includes an exposed metal section in a portion of the first opening. The portion is below a layer of the formation to be heated. The exposed metal section is exposed to the formation. A second elongated heater is in a second opening in the formation. The second opening connects to the first opening at or near the portion of the first opening below the layer to be heated. At least a portion of an exposed metal section of the second elongated heater is electrically coupled to at least a portion of the exposed metal section of the first elongated heater in the portion of the first opening below the layer to be heated.

Vinegar, Harold J. (Bellaire, TX); Bass, Ronald Marshall (Houston, TX); Kim, Dong Sub (Sugar Land, TX); Mason, Stanley Leroy (Allen, TX); Stegemeier, George Leo (Houston, TX); Keltner, Thomas Joseph (Spring, TX); Carl, Jr., Frederick Gordon (Houston, TX)

2010-12-28T23:59:59.000Z

119

Heat Pump Water Heater Technology Assessment Based on Laboratory Research and Energy Simulation Models: Preprint  

SciTech Connect (OSTI)

This paper explores the laboratory performance of five integrated Heat Pump Water Heaters (HPWHs) across a wide range of operating conditions representative of US climate regions. Laboratory results demonstrate the efficiency of this technology under most of the conditions tested and show that differences in control schemes and design features impact the performance of the individual units. These results were used to understand current model limitations, and then to bracket the energy savings potential for HPWH technology in various US climate regions. Simulation results show that HPWHs are expected to provide significant energy savings in many climate zones when compared to other types of water heaters (up to 64%, including impact on HVAC systems).

Hudon, K.; Sparn, B.; Christensen, D.; Maguire, J.

2012-02-01T23:59:59.000Z

120

Spatially resolved temperature and heat flux measurements for slow evaporating droplets heated by a microfabricated heater array  

E-Print Network [OSTI]

flux datum per one droplet. No spatial or temporal heat flux information was given. Klassen et al. [12] and di Marzo et al. [13] were the first to use an infrared thermography technique to attempt to measure the spatially and temporally resolved... infrared thermography. Because of the aforementioned limitation of the IR thermography, measurements were only possible outside of the droplets. Michiyoshi and Makino [15] used a dual beam synchroscope to measure the variation of the heater supply...

Paik, Sokwon

2006-08-16T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Temperature limited heater with a conduit substantially electrically isolated from the formation  

DOE Patents [OSTI]

A system for heating a hydrocarbon containing formation is described. A conduit may be located in an opening in the formation. The conduit includes ferromagnetic material. An electrical conductor is positioned inside the conduit, and is electrically coupled to the conduit at or near an end portion of the conduit so that the electrical conductor and the conduit are electrically coupled in series. Electrical current flows in the electrical conductor in a substantially opposite direction to electrical current flow in the conduit during application of electrical current to the system. The flow of electrons is substantially confined to the inside of the conduit by the electromagnetic field generated from electrical current flow in the electrical conductor so that the outside surface of the conduit is at or near substantially zero potential at 25.degree. C. The conduit may generate heat and heat the formation during application of electrical current.

Vinegar, Harold J. (Bellaire, TX); Sandberg, Chester Ledlie (Palo Alto, CA)

2009-07-14T23:59:59.000Z

122

Impact of Ducting on Heat Pump Water Heater Space Conditioning Energy Use and Comfort  

SciTech Connect (OSTI)

Increasing penetration of heat pump water heaters (HPWHs) in the residential sector will offer an important opportunity for energy savings, with a theoretical energy savings of up to 63% per water heater and up to 11% of residential energy use (EIA 2009). However, significant barriers must be overcome before this technology will reach widespread adoption in the Pacific Northwest region and nationwide. One significant barrier noted by the Northwest Energy Efficiency Alliance (NEEA) is the possible interaction with the homes’ space conditioning system for units installed in conditioned spaces. Such complex interactions may decrease the magnitude of whole-house savings available from HPWH installed in the conditioned space in cold climates and could lead to comfort concerns (Larson et al. 2011; Kresta 2012). Modeling studies indicate that the installation location of HPWHs can significantly impact their performance and the resultant whole-house energy savings (Larson et al. 2012; Maguire et al. 2013). However, field data are not currently available to validate these results. This field evaluation of two GE GeoSpring HPWHs in the PNNL Lab Homes is designed to measure the performance and impact on the Lab Home HVAC system of a GE GeoSpring HPWH configured with exhaust ducting compared to an unducted GeoSpring HPWH during heating and cooling season periods; and measure the performance and impact on the Lab Home HVAC system of the GeoSpring HPWH with both supply and exhaust air ducting as compared to an unducted GeoSpring HPWH during heating and cooling season periods. Important metrics evaluated in these experiments include water heater energy use, HVAC energy use, whole house energy use, interior temperatures (as a proxy for thermal comfort), and cost impacts. This technical report presents results from the PNNL Lab Homes experiment.

Widder, Sarah H.; Petersen, Joseph M.; Parker, Graham B.; Baechler, Michael C.

2014-07-21T23:59:59.000Z

123

BOILING CRISIS:THEORY,SIMULATION,AND EXPERIMENTSBOILING CRISIS: THEORY, SIMULATION, AND EXPERIMENTS Boiling is a very efficient way to transfer heat from a heater to the liquid heat carrier. We discuss the  

E-Print Network [OSTI]

that separates the liquid from the heater. Film boiling can be also observed in the kitchen by sprinkling water onto a hot frying pan. In spite of the large temperature of the heater (the pan) the water drops Boiling is a very efficient way to transfer heat from a heater to the liquid heat carrier. We discuss

Nikolayev, Vadim S.

124

Electric Adsorption Heat Pump for Electric Vehicles: Electric-Powered Adsorption Heat Pump for Electric Vehicles  

SciTech Connect (OSTI)

HEATS Project: PNNL is developing a new class of advanced nanomaterial called an electrical metal organic framework (EMOF) for EV heating and cooling systems. The EMOF would function similar to a conventional heat pump, which circulates heat or cold to the cabin as needed. However, by directly controlling the EMOF's properties with electricity, the PNNL design is expected to use much less energy than traditional heating and cooling systems. The EMOF-based heat pumps would be light, compact, efficient, and run using virtually no moving parts.

None

2011-11-21T23:59:59.000Z

125

Economics of Condensing Gas Furnaces and Water Heaters Potential in Residential Single Family Homes  

E-Print Network [OSTI]

and F. Southworh. 2004. Heat pump water heater technology:gas tankless water heaters, heat pump water heaters,heat pump space heaters, and solar water heaters, as well as

Lekov, Alex

2011-01-01T23:59:59.000Z

126

Sodium heat engine electrical feedthrough  

DOE Patents [OSTI]

A thermoelectric generator device which converts heat energy to electrical energy is disclosed. An alkali metal is used with a solid electrolyte and a hermetically sealed feedthrough structure. 4 figs.

Weber, N.

1985-03-19T23:59:59.000Z

127

East Central Electric Cooperative- Residential Rebate Program  

Broader source: Energy.gov [DOE]

East Central Electric Cooperative offers rebates to residential customers to install energy-efficient ground source heat pumps, electric water heaters, and appliances. To qualify for the rebate...

128

E-Print Network 3.0 - absorption-sorption heat pumps Sample Search...  

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

Corporation Auxiliary - Heat pump water heater 50... -gal tank, electric auxiliary heating Multiple operating modes: heat pump, hybrid and standard... and Ventilation Systems...

129

E-Print Network 3.0 - absorption-type heat pumps Sample Search...  

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

Corporation Auxiliary - Heat pump water heater 50... -gal tank, electric auxiliary heating Multiple operating modes: heat pump, hybrid and standard... and Ventilation Systems...

130

Combustion air preheating for refinery heaters using plate-type heat exchangers  

SciTech Connect (OSTI)

Combustion air preheating by recovering heat from combustion gases is a cost effective method of increasing the overall thermal efficiency of the refining and petrochemical processes. This paper presents the advantages of the plate-type air preheaters made of smooth plates without extended surfaces. These exchangers provide a relatively high heat transfer coefficient at a relatively low pressure drop, resulting in a flexible and compact design. The air preheater design can easily be integrated into the heater design. Top mounting with natural draft becomes possible for many applications, eliminating the need for I.D. fan and expensive ductwork. The economical extent of heat recovery function of the fuel fired is presented based on practical experience. The use of porcelain enameled (glass coated) plates and of stainless steel materials allows the operation of the air preheater below the acidic and water dew point. Finally the paper presents the experience of the Canadian refineries and petrochemical plants with plate-type heat exchangers used for combustion air preheating.

Dinulescu, M.

1987-01-01T23:59:59.000Z

131

Convective heater  

DOE Patents [OSTI]

A convective heater for heating fluids such as a coal slurry is constructed of a tube circuit arrangement which obtains an optimum temperature distribution to give a relatively constant slurry film temperature. The heater is constructed to divide the heating gas flow into two equal paths and the tube circuit for the slurry is arranged to provide a mixed flow configuration whereby the slurry passes through the two heating gas paths in successive co-current, counter-current and co-current flow relative to the heating gas flow. This arrangement permits the utilization of minimum surface area for a given maximum film temperature of the slurry consistent with the prevention of coke formation.

Thorogood, Robert M. (Macungie, PA)

1986-01-01T23:59:59.000Z

132

Convective heater  

DOE Patents [OSTI]

A convective heater for heating fluids such as a coal slurry is constructed of a tube circuit arrangement which obtains an optimum temperature distribution to give a relatively constant slurry film temperature. The heater is constructed to divide the heating gas flow into two equal paths and the tube circuit for the slurry is arranged to provide a mixed flow configuration whereby the slurry passes through the two heating gas paths in successive co-current, counter-current and co-current flow relative to the heating gas flow. This arrangement permits the utilization of minimum surface area for a given maximum film temperature of the slurry consistent with the prevention of coke formation. 14 figs.

Thorogood, R.M.

1983-12-27T23:59:59.000Z

133

Building America Technology Solutions for New and Existing Homes: Multifamily Central Heat Pump Water Heaters (Fact Sheet)  

Broader source: Energy.gov [DOE]

To evaluate the performance of central heat pump water heaters for multifamily applications, the Alliance for Residential Building Innovation team monitored the performance of a 10.5 ton central HPWH installed on a student apartment building at the West Village Zero Net Energy Community in Davis, California, for 16 months.

134

The Influence of Residential Solar Water Heating on Electric Utility Demand  

E-Print Network [OSTI]

Similar sets of residences in Austin, Texas with electric water heaters and solar water heaters with electric back-up were monitored during 1982 to determine their instantaneous electric demands, the purpose being to determine the influence...

Vliet, G. C.; Askey, J. L.

1984-01-01T23:59:59.000Z

135

Yellowstone Valley Electric Cooperative- Residential/Commercial Efficiency Rebate Program  

Broader source: Energy.gov [DOE]

The Yellowstone Valley Electric Cooperative offers rebates to residential and commercial members for purchasing energy efficient add-on heat pumps, geothermal heat pumps, water heaters, dishwashers...

136

Laboratory Evaluation of Gas-Fired Tankless and Storage Water Heater Approaches to Combination Water and Space Heating  

SciTech Connect (OSTI)

Homebuilders are exploring more cost effective combined space and water heating systems (combo systems) with major water heater manufacturers that are offering pre-engineered forced air space heating combo systems. In this project, unlike standardized tests, laboratory tests were conducted that subjected condensing tankless and storage water heater based combo systems to realistic, coincidental space and domestic hot water loads with the following key findings: 1) The tankless combo system maintained more stable DHW and space heating temperatures than the storage combo system. 2) The tankless combo system consistently achieved better daily efficiencies (i.e. 84%-93%) than the storage combo system (i.e. 81%- 91%) when the air handler was sized adequately and adjusted properly to achieve significant condensing operation. When condensing operation was not achieved, both systems performed with lower (i.e. 75%-88%), but similar efficiencies. 3) Air handlers currently packaged with combo systems are not designed to optimize condensing operation. More research is needed to develop air handlers specifically designed for condensing water heaters. 4) System efficiencies greater than 90% were achieved only on days where continual and steady space heating loads were required with significant condensing operation. For days where heating was more intermittent, the system efficiencies fell below 90%.

Kingston, T.; Scott, S.

2013-03-01T23:59:59.000Z

137

Testing and analysis of the Semiscale Mod-1 heater rod design  

SciTech Connect (OSTI)

The use of electrically heated nuclear fuel rod simulators in the Semiscale Program is traced from a historical viewpoint. The design of the Semiscale Mod-1 electrical heater rod and core simulator is discussed. Heater rod thermal response during transient thermal-hydraulic depressurization experiments conducted in the Mod-1 system, and analysis techniques and tests conducted to help quantify heater rod characteristics and behavior are presented.

Larson, T.K.

1980-01-01T23:59:59.000Z

138

Energy Efficiency Design Options for Residential Water Heaters: Economic Impacts on Consumers  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) recently completed a rulemaking process in which it amended the existing energy efficiency standards for residential water heaters. A key factor in DOE?s consideration of new standards is the economic impacts on consumers. Determining such impacts requires a comparison of the additional first cost of energy efficiency design options with the savings in operating costs. This paper describes the method used to conduct the life-cycle cost (LCC) and payback period analysis for gas and electric storage water heaters. It presents the estimated change in LCC associated with more energy-efficient equipment, including heat pump electric water heaters and condensing gas water heaters, for a representative sample of U.S. homes. The study included a detailed accounting of installation costs for the considered design options, with a focus on approaches for accommodating the larger dimensions of more efficient water heaters. For heat pump water heaters, the study also considered airflow requirements, venting issues, and the impact of these products on the indoor environment. The results indicate that efficiency improvement relative to the baseline design reduces the LCC in the majority of homes for both gas and electric storage water heaters, and heat pump electric water heaters and condensing gas water heaters provide a lower LCC for homes with large rated volume water heaters.

Lekov, Alex; Franco, Victor; Meyers, Steve; Thompson, Lisa; Letschert, Virginie

2010-11-24T23:59:59.000Z

139

The LBNL Water Heater Retail Price Database  

E-Print Network [OSTI]

display the distribution of water heater models by fee typeelectric and gas-fired water heaters, respectively. DeliveryDistribution of Electric Water Heaters by Fee Type Figure B-

Lekov, Alex; Glover, Julie; Lutz, Jim

2000-01-01T23:59:59.000Z

140

Diesel particulate filter (DPF) regeneration by electrical heating of resistive coatings  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine includes a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates from the exhaust. An electrical heater is integrally formed in an upstream end of the DPF and selectively heats the exhaust to initiate combustion of the particulates within the exhaust as it passes therethrough. Heat generated by combustion of the particulates induces combustion of particulates within the DPF.

Williamson, Weldon S. (Malibu, CA); Gonze, Eugene V. (Pinckney, MI)

2008-12-30T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Commercialization of air conditioning heat pump/water heater. Final technical report, Volume 3: Appendix F through I  

SciTech Connect (OSTI)

This is the final technical report on a commercialization project for an air conditioning heat pump water heater. The objective of the project was to produce a saleable system which would be economically competitive with natural gas and cost effective with regard to initial cost versus annual operating costs. The development and commercialization of the system is described. Compiled data included in numerous figures, tables and graphs.

NONE

1996-01-30T23:59:59.000Z

142

Commercialization of air conditioning heat pump/water heater. Final technical report, Volume 2: Appendix A through E  

SciTech Connect (OSTI)

This is the final technical report on a commercialization project for an air conditioning heat pump water heater. The objective of the project was to produce a saleable system which would be economically competitive with natural gas and cost effective with regard to initial cost versus annual operating costs. The development and commercialization of the system is described. Compiled data included in numerous figures, tables and graphs.

NONE

1996-01-30T23:59:59.000Z

143

Building America Technology Solutions for New and Existing Homes: Field Performance of Heat Pump Water Heaters in the Northeast (Fact Sheet)  

Broader source: Energy.gov [DOE]

In this project, the Consortium for Advanced Residential Buildings evaluated three newly released heat pump water heater products in order to provide publicly available field data on these products.

144

Subsurface heaters with low sulfidation rates  

DOE Patents [OSTI]

A system for heating a hydrocarbon containing formation includes a heater having an elongated ferromagnetic metal heater section. The heater is located in an opening in a formation. The heater section is configured to heat the hydrocarbon containing formation. The exposed ferromagnetic metal has a sulfidation rate that goes down with increasing temperature of the heater, when the heater is in a selected temperature range.

John, Randy Carl; Vinegar, Harold J

2013-12-10T23:59:59.000Z

145

IEA Heat Pump Conference 2011, 16 -19 May 2011, Tokyo, Japan DYNAMIC MODELING OF AN AIR SOURCE HEAT PUMP WATER  

E-Print Network [OSTI]

. Compared to those water heaters, heat pump water heating systems can supply much more heat just with the same amount of electric input used for electric water heaters. The ASHPWH absorbs heat from the ambient- 1 - 10th IEA Heat Pump Conference 2011, 16 - 19 May 2011, Tokyo, Japan DYNAMIC MODELING OF AN AIR

Paris-Sud XI, Université de

146

E-Print Network 3.0 - auxiliary heating Sample Search Results  

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

Photovoltaic Panels Summary: Heating System Preheat - Solar thermal 80-gal tank, electric auxiliary heating Active, indirect forced... heater w digital control panel Source:...

147

Elevated exhaust temperature, zoned, electrically-heated particulate matter filter  

DOE Patents [OSTI]

A system includes an electrical heater and a particulate matter (PM) filter that is arranged one of adjacent to and in contact with the electrical heater. A control module selectively increases an exhaust gas temperature of an engine to a first temperature and that initiates regeneration of the PM filter using the electrical heater while the exhaust gas temperature is above the first temperature. The first temperature is greater than a maximum exhaust gas temperature at the PM filter during non-regeneration operation and is less than an oxidation temperature of the PM.

Gonze, Eugene V [Pinckney, MI; Bhatia, Garima [Bangalore, IN

2012-04-17T23:59:59.000Z

148

Energy Efficiency Design Options for Residential Water Heaters: Economic Impacts on Consumers  

E-Print Network [OSTI]

of a Drop-In Heat Pump Water Heater, Oak Ridge National Lab.CA. Maxwell, J. 2004. Heat Pump Water Heater Economic Model.water heaters. For heat pump water heaters, the study also

Lekov, Alex

2011-01-01T23:59:59.000Z

149

FEMP Designated Product Assessment for Commercial Gas Water Heaters  

E-Print Network [OSTI]

resistance and heat pump water heaters are not covered.other than commercial heat pump water heaters). 10CFR431.110

Lutz, Jim

2012-01-01T23:59:59.000Z

150

Immersible solar heater for fluids  

DOE Patents [OSTI]

An immersible solar heater comprising a light-absorbing panel attached to a frame for absorbing heat energy from the light and transferring the absorbed heat energy directly to the fluid in which the heater is immersed. The heater can be used to heat a swimming pool, for example, and is held in position and at a preselected angle by a system of floats, weights and tethers so that the panel can operate efficiently. A skid can be used in one embodiment to prevent lateral movement of the heater along the bottom of the pool. Alternative embodiments include different arrangements of the weights, floats and tethers and methods for making the heater.

Kronberg, James W. (Aiken, SC)

1995-01-01T23:59:59.000Z

151

Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound...  

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

More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric...

152

Auto-Calibration and Control Strategy Determination for a Variable-Speed Heat Pump Water Heater Using Optimization  

SciTech Connect (OSTI)

This paper introduces applications of the GenOpt optimizer coupled with a vapor compression system model for auto-calibration and control strategy determination towards the development of a variable-speed ground-source heat pump water heating unit. The GenOpt optimizer can be linked with any simulation program using input and output text files. It effectively facilitates optimization runs. Using our GenOpt wrapper program, we can flexibly define objectives for optimizations, targets, and constraints. Those functionalities enable running extensive optimization cases for model calibration, configuration design and control strategy determination. In addition, we describe a methodology to improve prediction accuracy using functional calibration curves. Using the calibrated model, we investigated control strategies of the ground-source heat pump water heater, considering multiple control objectives, covering the entire operation range.

Shen, Bo [ORNL] [ORNL; Abdelaziz, Omar [ORNL] [ORNL; Rice, C Keith [ORNL] [ORNL

2012-01-01T23:59:59.000Z

153

Portland General Electric- Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

Portland General Electric's (PGE) Heat Pump Rebate Program offers residential customers a $200 rebate for an energy-efficient heat pump installed to PGE’s standards by a PGE-approved contractor....

154

Economics of Condensing Gas Furnaces and Water Heaters Potential in Residential Single Family Homes  

E-Print Network [OSTI]

Star Residential Water Heaters: Final criteria analysis.2004. Heat pump water heater technology: Experiences ofmarket research on solar water heaters. National Renewable

Lekov, Alex

2011-01-01T23:59:59.000Z

155

Economics of residential gas furnaces and water heaters in United States new construction market  

E-Print Network [OSTI]

2004). Heat pump water heater technology: Experiences ofStar Residential Water Heaters: Final criteria analysis.market research on solar water heaters. National Renewable

Lekov, Alex B.

2010-01-01T23:59:59.000Z

156

Economics of residential gas furnaces and water heaters in US new construction market  

E-Print Network [OSTI]

al. (2004). Heat pump water heater technology: Experiencesstar residential water heaters: Final criteria analysis.market research on solar water heaters. National Renew- able

Lekov, Alex B.; Franco, Victor H.; Wong-Parodi, Gabrielle; McMahon, James E.; Chan, Peter

2010-01-01T23:59:59.000Z

157

Valley Electric Association- Solar Water Heating Program  

Broader source: Energy.gov [DOE]

Valley Electric Association (VEA), a nonprofit member owned cooperative, developed the domestic solar water heating program to encourage energy efficiency at the request of the membership. VEA...

158

Review of experiments to evaluate the ability of electrical heater rods to simulate nuclear fuel rod behavior during postulated loss-of-coolant accidents in light water reactors  

SciTech Connect (OSTI)

Issues related to using electrical fuel rod simulators to simulate nuclear fuel rod behavior during postulated loss-of-coolant accident (LOCA) conditions in light water reactors are summarized. Experimental programs which will provide a data base for comparing electrical heater rod and nuclear fuel rod LOCA responses are reviewed.

McPherson, G D; Tolman, E L

1980-01-01T23:59:59.000Z

159

Methods for forming long subsurface heaters  

DOE Patents [OSTI]

A method for forming a longitudinal subsurface heater includes longitudinally welding an electrically conductive sheath of an insulated conductor heater along at least one longitudinal strip of metal. The longitudinal strip is formed into a tubular around the insulated conductor heater with the insulated conductor heater welded along the inside surface of the tubular.

Kim, Dong Sub

2013-09-17T23:59:59.000Z

160

Zone heated diesel particulate filter electrical connection  

DOE Patents [OSTI]

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

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

2010-03-30T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Electrical assembly having heat sink protrusions  

DOE Patents [OSTI]

An electrical assembly, comprising a heat producing semiconductor device supported on a first major surface of a direct bond metal substrate that has a set of heat sink protrusions supported by its second major surface. In one preferred embodiment the heat sink protrusions are made of the same metal as is used in the direct bond copper.

Rinehart, Lawrence E. (Lake Oswego, OR); Romero, Guillermo L. (Phoenix, AZ)

2009-04-21T23:59:59.000Z

162

One Machine for Heating Cooling & Domestic Hot Water: Multi-Function Heat Pumps to Enable Zero Net Energy Homes  

E-Print Network [OSTI]

advances to commercialize stand-alone electric heat-pump storage hot water heaters. These systems offer design uses multiple systems and fuels to provide thermal services, the emerging generation of heat to experience this change as air-source heat-pump water heaters deliver obvious energy savings over electric

California at Davis, University of

163

DSM Electricity Savings Potential in the Buildings Sector in APP Countries  

E-Print Network [OSTI]

Mains Pressure Electric Storage Water Heaters Small MainsElectric Storage Water Heaters (water heaters. The objective is to

McNeil, MIchael

2011-01-01T23:59:59.000Z

164

DSM Electricity Savings Potential in the Buildings Sector in APP Countries  

E-Print Network [OSTI]

Mains Pressure Electric Storage Water Heaters Small MainsPressure Electric Storage Water Heaters (Storage & instantaneous water heaters Storage tanks

McNeil, MIchael

2011-01-01T23:59:59.000Z

165

Adjusting alloy compositions for selected properties in temperature limited heaters  

DOE Patents [OSTI]

Heaters for treating a subsurface formation are described herein. Such heaters can be obtained by using the systems and methods described herein. The heater includes a heater section including iron, cobalt, and carbon. The heater section has a Curie temperature less than a phase transformation temperature. The Curie temperature is at least 740.degree. C. The heater section provides, when time varying current is applied to the heater section, an electrical resistance.

Brady; Michael Patrick (Oak Ridge, TN), Horton, Jr.; Joseph Arno (Oak Ridge, TN), Vitek; John Michael (Oak Ridge, TN)

2010-03-23T23:59:59.000Z

166

A new simulation model helps researchers evaluate real-world impacts of heat pump water heaters in U.S. homes.  

E-Print Network [OSTI]

.; Sparn, B.; Christensen, D.; Maguire, J. (2012). Heat Pump Water Heater Technology Assessment Based, presenting an energy-saving opportunity for homeowners. Researchers at the National Renewable Energy is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy

167

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 1, Methodology  

SciTech Connect (OSTI)

The Energy Policy and Conservation Act (P.L. 94-163), as amended, establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. DOE is currently considering amending standards for seven types of products: water heaters, direct heating equipment, mobile home furnaces, pool heaters, room air conditioners, kitchen ranges and ovens (including microwave ovens), and fluorescent light ballasts and is considering establishing standards for television sets. This Technical Support Document presents the methodology, data, and results from the analysis of the energy and economic impacts of the proposed standards. This volume presents a general description of the analytic approach, including the structure of the major models.

Not Available

1993-11-01T23:59:59.000Z

168

Economic Analysis of Solar Water Heaters in GuangZhou  

E-Print Network [OSTI]

,gas water heater and electrical water heater in Guangzhou was compared and the Annual Cost Calculation Method (ACCM)was introduced to explain the remarkable economic benefits. The social benefits of the solar water heater were introduced from a scientific...

Wang, Y.; Zhao, L.

2006-01-01T23:59:59.000Z

169

Edmond Electric- Residential Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

Edmond Electric offers rebates to residential customers who install energy-efficient heat pumps. This program applies to installations in both new and existing residential homes and complexes. Air...

170

Lakeland Electric- Solar Water Heating Program  

Broader source: Energy.gov [DOE]

Lakeland Electric, a municipal utility in Florida, is the nation's first utility to offer solar-heated domestic hot water on a "pay-for-energy" basis. The utility has contracted with a solar...

171

Flathead Electric Cooperative Facility Geothermal Heat Pump System...  

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

Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade Project Will Take Advantage of...

172

Thermoelectric Conversion of Waste Heat to Electricity in an...  

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

Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle Presentation from the...

173

Analysis of Michigan's demand-side electricity resources in the residential sector: Volume 3, End-use studies: Revised final report  

SciTech Connect (OSTI)

This volume of the ''Analysis of Michigan's Demand-Side Electricity Resources in the Residential Sector'' contains end-use studies on various household appliances including: refrigerators, freezers, lighting systems, water heaters, air conditioners, space heaters, and heat pumps. (JEF)

Krause, F.; Brown, J.; Connell, D.; DuPont, P.; Greely, K.; Meal, M.; Meier, A.; Mills, E.; Nordman, B.

1988-04-01T23:59:59.000Z

174

Varying properties along lengths of temperature limited heaters  

DOE Patents [OSTI]

A system for heating a subsurface formation is described. The system includes an elongated heater in an opening in the formation. The elongated heater includes two or more portions along the length of the heater that have different power outputs. At least one portion of the elongated heater includes at least one temperature limited portion with at least one selected temperature at which the portion provides a reduced heat output. The heater is configured to provide heat to the formation with the different power outputs. The heater is configured so that the heater heats one or more portions of the formation at one or more selected heating rates.

Vinegar, Harold J. (Bellaire, TX); Xie, Xueying (Houston, TX); Miller, David Scott (Katy, TX); Ginestra, Jean Charles (Richmond, TX)

2011-07-26T23:59:59.000Z

175

Water Heaters and Hot Water Distribution Systems  

E-Print Network [OSTI]

heat loss testing; part load performance curves for instantaneous gas water heaters; and pressure loss calculationsheat loss testing; part load performance curves for instantaneous gas water heaters; and pressure loss calculations

Lutz, Jim

2012-01-01T23:59:59.000Z

176

Indoor unit for electric heat pump  

DOE Patents [OSTI]

An indoor unit for an electric heat pump is provided in modular form including a refrigeration module, an air mover module, and a resistance heat package module, the refrigeration module including all of the indoor refrigerant circuit components including the compressor in a space adjacent the heat exchanger, the modules being adapted to be connected to air flow communication in several different ways as shown to accommodate placement of the unit in various orientations. 9 figs.

Draper, R.; Lackey, R.S.; Fagan, T.J. Jr.; Veyo, S.E.; Humphrey, J.R.

1984-05-22T23:59:59.000Z

177

Heater head for Stirling engine  

SciTech Connect (OSTI)

This patent describes a heater head for a Stirling engine comprising: a housing for enclosing the heater head with gas at a substantial elevated pressure; insulator means attached to the housing for insulating the heater head; inlet means attached to a regenerator in the housing for admission of relatively high pressure working fluid from the regenerator of a Stirling engine; a first annular heating wall in the housing attached to the inlet means for heating the working fluid; and, a second annular heating wall in the housing concentric with the first heating wall but of lesser diameters so that an annular space is formed between the first heating wall and the second heating wall for heating working fluid; and a third heating wall in the housing concentric with and smaller in diameter than the second heating wall forming the condensing area of a heat pipe between the second heating wall and the third heating wall.

White, M.A.; Emigh, S.G.

1987-06-09T23:59:59.000Z

178

Harvesting Electricity From Wasted Heat  

ScienceCinema (OSTI)

Scientists as SLAC National Laboratory explain the concept, Photon Enhanced Thermionic Emission (PETE), and how this process can capture more energy from photovoltaic panels by harnessing heat energy from sunlight.

Schwede, Jared

2014-07-16T23:59:59.000Z

179

Harvesting Electricity From Wasted Heat  

SciTech Connect (OSTI)

Scientists as SLAC National Laboratory explain the concept, Photon Enhanced Thermionic Emission (PETE), and how this process can capture more energy from photovoltaic panels by harnessing heat energy from sunlight.

Schwede, Jared

2014-06-30T23:59:59.000Z

180

Experimental Study of Heat Transfer and Flow Characteristics for a New Type of Air Heater  

E-Print Network [OSTI]

. It is found that the integrated characteristics of heat transfer and flow friction increase with the hole's diameter at the same hole density (which is equal to the ratio of the hole's total area to the baffle's area), and the heat transfer rate increases...

Zheng, H.; Fan, X.; Li, A.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Dynamic Response Testing in an Electrically Heated Reactor Test Facility  

SciTech Connect (OSTI)

Non-nuclear testing can be a valuable tool in the development of a space nuclear power or propulsion system. In a non-nuclear test bed, electric heaters are used to simulate the heat from nuclear fuel. Standard testing allows one to fully assess thermal, heat transfer, and stress related attributes of a given system, but fails to demonstrate the dynamic response that would be present in an integrated, fueled reactor system. The integration of thermal hydraulic hardware tests with simulated neutronic response provides a bridge between electrically heated testing and fueled nuclear testing. By implementing a neutronic response model to simulate the dynamic response that would be expected in a fueled reactor system, one can better understand system integration issues, characterize integrated system response times and response characteristics, and assess potential design improvements at a relatively small fiscal investment. Initial system dynamic response testing was demonstrated on the integrated SAFE-100a heat pipe (HP) cooled, electrically heated reactor and heat exchanger hardware, utilizing a one-group solution to the point kinetics equations to simulate the expected neutronic response of the system. Reactivity feedback calculations were then based on a bulk reactivity feedback coefficient and measured average core temperature. This paper presents preliminary results from similar dynamic testing of a direct drive gas cooled reactor system (DDG), demonstrating the applicability of the testing methodology to any reactor type and demonstrating the variation in system response characteristics in different reactor concepts. Although the HP and DDG designs both utilize a fast spectrum reactor, the method of cooling the reactor differs significantly, leading to a variable system response that can be demonstrated and assessed in a non-nuclear test facility. Planned system upgrades to allow implementation of higher fidelity dynamic testing are also discussed. Proposed DDG testing will utilize a higher fidelity point kinetics model to control core power transients, and reactivity feedback will be based on localized feedback coefficients and several independent temperature measurements taken within the core block. This paper presents preliminary test results and discusses the methodology that will be implemented in follow-on DDG testing and the additional instrumentation required to implement high fidelity dynamic testing.

Bragg-Sitton, Shannon M. [NASA Marshall Space Flight Center, Nuclear and Advanced Propulsion Branch, ER-11, MSFC, AL 35812 (United States); Morton, T. J. [Department of Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131 (United States)

2006-01-20T23:59:59.000Z

182

Immersible solar heater for fluids  

DOE Patents [OSTI]

An immersible solar heater is described comprising a light-absorbing panel attached to a frame for absorbing heat energy from the light and transferring the absorbed heat energy directly to the fluid in which the heater is immersed. The heater can be used to heat a swimming pool, for example, and is held in position and at a preselected angle by a system of floats, weights and tethers so that the panel can operate efficiently. A skid can be used in one embodiment to prevent lateral movement of the heater along the bottom of the pool. Alternative embodiments include different arrangements of the weights, floats and tethers and methods for making the heater. 11 figs.

Kronberg, J.W.

1995-07-11T23:59:59.000Z

183

Immersible solar heater for fluids  

DOE Patents [OSTI]

An immersible solar heater is described comprising a light-absorbing panel attached to a frame for absorbing heat energy from the light and transferring the absorbed heat energy directly to the fluid in which the heater is immersed. The heater can be used to heat a swimming pool, for example, and is held in position and at a preselected angle by a system of floats, weights and tethers so that the panel can operate efficiently. A skid can be used in one embodiment to prevent lateral movement of the heater along the bottom of the pool. Alternative embodiments include different arrangements of the weights, floats and tethers and methods for making the heater.

Hazen, T.C.; Fliermans, C.B.

1994-01-01T23:59:59.000Z

184

Kirkwood Electric- Residential Energy Efficiency Rebate Program  

Broader source: Energy.gov [DOE]

Kirkwood Electric offers rebates to its residential customers who install energy-efficient heat pumps and electric hot water heaters in their new and existing homes. Customers will be given a...

185

Variable power distribution for zoned regeneration of an electrically heated particulate filter  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter with multiple zones, an electric heater and a control module. The electrical heater includes heater segments, which each correspond with a respective one of the zones. The electrical heater is arranged upstream from and is proximate with the PM filter. The control module selectively applies a first energy level to a first one of the zones via a first one of the heater segments to initiate regeneration in the first zone. The control module also selectively applies a second energy level that is less than the first energy level to a second one of the zones via a second one of the heater segments to initiate regeneration in the second zone.

Bhatia, Garima [Bangalore, IN; Gonze, Eugene V [Pinckney, MI

2012-04-03T23:59:59.000Z

186

Indoor unit for electric heat pump  

DOE Patents [OSTI]

An indoor unit for an electric heat pump is provided in modular form including a refrigeration module 10, an air mover module 12, and a resistance heat package module 14, the refrigeration module including all of the indoor refrigerant circuit components including the compressor 36 in a space adjacent the heat exchanger 28, the modules being adapted to be connected to air flow communication in several different ways as shown in FIGS. 4-7 to accommodate placement of the unit in various orientations.

Draper, Robert (Churchill, PA); Lackey, Robert S. (Pittsburgh, PA); Fagan, Jr., Thomas J. (Penn HIlls, PA); Veyo, Stephen E. (Murrysville, PA); Humphrey, Joseph R. (Grand Rapids, MI)

1984-01-01T23:59:59.000Z

187

Combustion Air Preheat and Radiant Heat Transfer in Fired Heaters - A Graphical Method for Design and Operating Analysis  

E-Print Network [OSTI]

The installation of combustion air preheat is a widely used technique for improving the fuel efficiency of existing fired heaters and fired tubular reactors. By increasing adiabatic flame temperature, combustion air preheat increases radiant section...

Grantom, R. L.

1981-01-01T23:59:59.000Z

188

MEAN MONTHLY PERFORMANCE OF PASSIVE SOLAR HEATERS  

E-Print Network [OSTI]

storage water: Heat Flow Cold Water Solar Tank Warm Water Standard Water Heaterstorage tank can also be accom- plished by natural convection. In the compact water heater,

Place, W.

2011-01-01T23:59:59.000Z

189

Value of electrical heat boilers and heat pumps for wind power integration  

E-Print Network [OSTI]

Value of electrical heat boilers and heat pumps for wind power integration Peter Meibom Juha of using electrical heat boilers and heat pumps as wind power integration measures relieving the link between the heat and power production in combined heat and power plants. Each of these measures has

190

Automotive Waste Heat Conversion to Electric Power using Skutterudites...  

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

Waste Heat Conversion to Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3 Automotive Waste Heat Conversion to Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3...

191

Thermoelectrici Conversion of Waste Heat to Electricity in an...  

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

Thermoelectrici Conversion of Waste Heat to Electricity in an IC Engine-Powered Vehicle Thermoelectrici Conversion of Waste Heat to Electricity in an IC Engine-Powered Vehicle 2005...

192

Thermoelectric Conversion of Wate Heat to Electricity in an IC...  

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

Wate Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of Wate Heat to Electricity in an IC Engine Powered Vehicle Presentation given at the 16th...

193

Butler Rural Electric Cooperative- Residential Rebate Program (Ohio)  

Broader source: Energy.gov [DOE]

Butler Rural Electric Cooperative provides rebates for geothermal heat pumps, dual fuel heating systems, and water heaters. A $1,200 rebate is available to residential members that install a new...

194

Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound...  

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

Presentation: Caterpillar Inc. 2002deerhopmann.pdf More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology Diesel...

195

Review of International Methods of Test to Rate the Efficiency of Water Heaters  

E-Print Network [OSTI]

energy multiplier Distribution losses Smart controls Wasted water Solar Heat pump water heater Australia/

Lutz, Jim

2012-01-01T23:59:59.000Z

196

Technologies for production of Electricity and Heat in Sweden  

E-Print Network [OSTI]

Technologies for production of Electricity and Heat in Sweden Wind Energy ­ in perspective Morthorst December 2008 #12;Technologies for production of Electricity and Heat in Sweden Wind Energy Erik Morthorst Title: Technologies for production of Electricity and Heat in Sweden Wind Energy

197

DEVELOPMENT OF THFEGENERAL ELECTRIC STIRLING ENGINE GAS HEAT PUMP  

E-Print Network [OSTI]

DEVELOPMENT OF THFEGENERAL ELECTRIC STIRLING ENGINE GAS HEAT PUMP R. C. Meier, Program Manager, Gas Heat Pump Program General Electric Company P. 0. Box 8555 Philadelphia, Pennsylvania 19101 FILE COPY DO NOT REMOVE SUMMARY The Stirling/Rankine Heat Activated Heat Pump is a high performance product for space

Oak Ridge National Laboratory

198

Heat Pump Water Heaters  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Bigfront.jpgcommunity200cell 9HarveyWellnessFebruary

199

Electrically heated particulate filter with reduced stress  

DOE Patents [OSTI]

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

Gonze, Eugene V.

2013-03-05T23:59:59.000Z

200

Electrically heated particulate filter using catalyst striping  

SciTech Connect (OSTI)

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

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

2013-07-16T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Electrically heated particulate filter enhanced ignition strategy  

SciTech Connect (OSTI)

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

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

2012-10-23T23:59:59.000Z

202

Energy Efficiency Design Options for Residential Water Heaters: Economic Impacts on Consumers  

E-Print Network [OSTI]

of a Drop-In Heat Pump Water Heater, Oak Ridge National Lab.Clear Seas Research. 2006. Water Heater Study. Plumbing andJ. 2003. Incorporating Water Heater Replacement into the

Lekov, Alex

2011-01-01T23:59:59.000Z

203

Arnold Schwarzenegger WATER HEATERS AND HOT WATER  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor WATER HEATERS AND HOT WATER DISTRIBUTION SYSTEMS;#12;Appendices Appendix A. Multifamily Water Heating Construction Practices, Pricing and Availability Survey Report Appendix B. Multifamily Water Heating Controls Performance Field Report Appendix C. Pipe

204

Kosciusko REMC- Residential Geothermal and Air-source Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

Kosciusko REMC offers rebates (as bill credits) to residential members for the purchase and installation of high efficiency air-source heat pumps, geothermal heat pumps, and electric water heaters....

205

Design, Stress Analysis and Operating Experience in Feedwater Heaters  

E-Print Network [OSTI]

The performance of feedwater heaters has a direct bearing on the thermal efficiency of the plant. A typical feedwater heater may have three distinct regions of heat transfer, namely desuperheating, condensing and subcooling zones. The design...

Singh, K. P.; Libs, T.

1980-01-01T23:59:59.000Z

206

Nuclear Plant Feedwater Heater Handbook. Volume 1. Primer. Final report  

SciTech Connect (OSTI)

This document is the first part of a three volume handbook covering closed feedwater heaters for electric power generating plants. This volume is a primer to the subject of feedwater heaters and their integration into the plant. 24 refs.

Bell, R.J.; Wells, T.G. Jr.

1985-06-01T23:59:59.000Z

207

Burbank Water and Power- Solar Water Heater Rebate Program (California)  

Broader source: Energy.gov [DOE]

Burbank Water and Power is providing incentives for the purchase of solar water heaters. Incentives are only available to residential customers with electric water heaters. There is a limit of one...

208

High thermal power density heat transfer apparatus providing electrical isolation at high temperature using heat pipes  

SciTech Connect (OSTI)

This invention is directed to transferring heat from an extremely high temperature source to an electrically isolated lower temperature receiver. The invention is particularly concerned with supplying thermal power to a thermionic converter from a nuclear reactor with electric isolation. Heat from a high temperature heat pipe is transferred through a vacuum or a gap filled with electrically nonconducting gas to a cooler heat pipe. The heat pipe is used to cool the nuclear reactor while the heat pipe is connected thermally and electrically to a thermionic converter. If the receiver requires greater thermal power density, geometries are used with larger heat pipe areas for transmitting and receiving energy than the area for conducting the heat to the thermionic converter. In this way the heat pipe capability for increasing thermal power densities compensates for the comparatively low thermal power densities through the electrically nonconducting gap between the two heat pipes.

Morris, J. F.

1985-03-19T23:59:59.000Z

209

Water heater control module  

DOE Patents [OSTI]

An advanced electric water heater control system that interfaces with a high temperature cut-off thermostat and an upper regulating thermostat. The system includes a control module that is electrically connected to the high-temperature cut-off thermostat and the upper regulating thermostat. The control module includes a switch to open or close the high-temperature cut-off thermostat and the upper regulating thermostat. The control module further includes circuitry configured to control said switch in response to a signal selected from the group of an autonomous signal, a communicated signal, and combinations thereof.

Hammerstrom, Donald J

2013-11-26T23:59:59.000Z

210

City of Statesville Electric Utility Department- Residential Energy Efficiency Rebate Program  

Broader source: Energy.gov [DOE]

The City of Statesville Electric Utility Department offers rebates to its residential customers for installing new, energy efficient water heaters and heat pumps. To qualify for the heat pump...

211

Domestic olivine vs magnesite as a thermal-energy-storage material: performance comparisons for electrically heated room-size units in accordance with ASHRAE Standard 94. 2  

SciTech Connect (OSTI)

Electrically heated thermal-energy-storage (TES) heaters employing high-heat-capacity ceramic refractories for sensible heat storage have been in use in Europe for several years. With these heaters, low cost off-peak electrical energy is stored by heating a storage core composed of ceramic material to approximately 800/sup 0/C. During the peak period, no electrical energy is used as the building heating needs are supplied by extracting the stored heat from the core by forced air circulation. Recently significant interest in the use of off-peak TES units in the US has occured, leading to the search for a domestic supply of high heat capacity ceramic refractory material. North Carolina's extensive but under-utilized supply of refractory grade olivine has been proposed as a source of storage material for these units. In this paper, the suitability of North Carolina olivine for heat-storage applications is assessed by comparing its thermal performance with that of European materials. Using the method of ASHRAE Standard 94.2, the thermal performance of two small room-sized commercially available TES units was determined experimentally with two different storage materials, North Carolina olivine and German magnesite. Comparisons between the two materials are made and conclusions are drawn.

Laster, W.R.; Schoenhals, R.J.; Gay, B.M.; Palmour, H. III

1982-01-01T23:59:59.000Z

212

Energy Consumption and Demand as Affected by Heat Pumps that Cool, Heat and Heat Domestic Water  

E-Print Network [OSTI]

heaters. The methods presented demonstrate how integrated systems can be of value in reducing daily summertime peaks. INTRODUCTION A need for descriptors to evaluate systems that condition space and heat domestic water has been recognized for several... added to and used by the water from the desuperheated refrigerant - heat normally provided by the electric water heater's resistance elements. DESCRIPTION OF EQUIPMENT The system considered for this study is best described by U.S. Patent No. 4...

Cawley, R.

213

Sand Mountain Electric Cooperative- Residential Heat Pump Loan Program  

Broader source: Energy.gov [DOE]

The Sand Mountain Electric Cooperative offers a heat pump loan program to eligible residential members. To qualify, members must have had power with Sand Mountain Electric Cooperative for at least...

214

Ash reduction system using electrically heated particulate matter filter  

DOE Patents [OSTI]

A control system for reducing ash comprises a temperature estimator module that estimates a temperature of an electrically heated particulate matter (PM) filter. A temperature and position estimator module estimates a position and temperature of an oxidation wave within the electrically heated PM filter. An ash reduction control module adjusts at least one of exhaust flow, fuel and oxygen levels in the electrically heated PM filter to adjust a position of the oxidation wave within the electrically heated PM filter based on the oxidation wave temperature and position.

Gonze, Eugene V [Pinckney, MI; Paratore, Jr., Michael J; He, Yongsheng [Sterling Heights, MI

2011-08-16T23:59:59.000Z

215

Thermoelectric Conversion of Waste Heat to Electricity in an...  

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

truck system. schock.pdf More Documents & Publications Thermoelectric Conversion of Wate Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of Waste...

216

Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound...  

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

Trubocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound Technology 2003 DEER Conference Presentation: Caterpillar Inc. 2003deeralgrain.pdf...

217

Thermoelectric Conversion of Waste Heat to Electricity in an...  

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

by the Application of Advanced Thermoelectric Systems Implemented in a Hybrid Configuration Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle...

218

Thermoelectric Conversion of Waste Heat to Electricity in an...  

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

2006deerschock.pdf More Documents & Publications Thermoelectrici Conversion of Waste Heat to Electricity in an IC Engine-Powered Vehicle Development of Thermoelectric...

219

Thermoelectric Conversion of Waste Heat to Electricity in an...  

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

on a OTR truck schock.pdf More Documents & Publications Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of...

220

1 000 000 "C/s thin film electrical heater: ln situ resistivity measurements of Al and Ti/Si thin films during ultra rapid thermal annealing  

E-Print Network [OSTI]

introduce a new technique for rapidly heating (10' "C/s) thin films using an electrical thermal annealing- ently, most commercial RTA systems use radiation-heating techniques via tungsten-halogen lamps. These systems typi- cally have a maximum heating rate of 100-300 "C/s. We introduce an alternative methodfor

Allen, Leslie H.

Note: This page contains sample records for the topic "heaters electric heat" 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

Comparison of Advanced Residential Water Heating Technologies in the United States  

SciTech Connect (OSTI)

Gas storage, gas tankless, condensing, electric storage, heat pump, and solar water heaters were simulated in several different climates across the US installed in both conditioned and unconditioned space and subjected to several different draw profiles. While many preexisting models were used, new models of condensing and heat pump water heaters were created specifically for this work.

Maguire, J.; Fang, X.; Wilson, E.

2013-05-01T23:59:59.000Z

222

High efficiency solar air heaters with novel built-in heat storage for use in a humidification-dehumidification desalination cycle  

E-Print Network [OSTI]

Compared to solar water heaters, solar air heaters have received relatively little investigation and have resulted in few commercial products. However, in the context of a Humidification-Dehumidification (HD) Desalination ...

Summers, Edward K

2010-01-01T23:59:59.000Z

223

Measured Impact on Space Conditioning Energy Use in a Residence Due to Operating a Heat Pump Water Heater inside the Conditioned Space  

SciTech Connect (OSTI)

The impact on space conditioning energy use due to operating a heat pump water heater (HPWH) inside the conditioned space is analyzed based on 2010-2011 data from a research house with simulated occupancy and hot water use controls. The 2700 ft2 (345 m2) house is located in Oak Ridge, TN (mixed-humid climate) and is equipped with a 50 gallon (189 l) HPWH that provided approximately 55 gallons/d (208 l/d) of hot water at 120 F (46 C) to the house during the test period. The HPWH has been operated every other week from December 2010 through November 2011 in two modes; a heat pump only mode, and a standard mode that utilizes 15355 Btu/hr (4500 W) resistance heating elements. The energy consumption of the air-source heat pump (ASHP) that provides space conditioning for the house is compared for the two HPWH operating modes with weather effects taken into account. Impacts during the heating and cooling seasons are compared.

Munk, Jeffrey D [ORNL] [ORNL; Ally, Moonis Raza [ORNL] [ORNL; Baxter, Van D [ORNL] [ORNL

2012-01-01T23:59:59.000Z

224

Electric Blanket vs. Space Heater: #EnergyFaceoff Round 3 Heats Up |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: TopEnergyIDIQ Contract ESPC IDIQEnergyGovernment Officials. NovemberThree

225

From Heat to Electricity: How "nano" Saved Thermoelectrics  

E-Print Network [OSTI]

· Utilities · Chemical plants Space power Remote Power Generation Solar energy Geothermal power generationFrom Heat to Electricity: How "nano" Saved Thermoelectrics Sponsored by Mercouri Kanatzidis brittle materials strong Conclusions #12;Heat to Electrical Energy Directly Up to 20% conversion

Kanatzidis, Mercouri G

226

Oil production response to in situ electrical resistance heating  

E-Print Network [OSTI]

of the electric power through electrical resistance heating with a very small electromagnetic power absorption component. The oil viscosity decreases as the temperature increases thus stimulating oil production. DEDICATION I would like to dedicate this thesis... PROFILE FOR CASE S-2 INTRODUCTION Oil production can be stimulated by applying electrical power to the formation. The electrical power causes a temperature increase that reduces oil viscosity, resulting in increased oil production rates. Electrical...

McDougal, Fred William

1987-01-01T23:59:59.000Z

227

Mohave Electric Cooperative- Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

Mohave Electric Cooperative is a non-profit that serves the communities of Bullhead City, Fort Mohave, Mohave Valley, Wikieup, Hackberry and Peach Springs. Mohave Electric Cooperative offers...

228

Experimental Research of an Active Solar Heating System  

E-Print Network [OSTI]

system are discussed in this paper. Based on the design, construction, testing and economic analysis of a demonstration project with the solar heating system, this paper discusses how to connect the solar energy collector with the electricity heater...

Gao, X.; Li, D.

2006-01-01T23:59:59.000Z

229

Going Ductless with Heat Pumps | Department of Energy  

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

during the hot muggy Washington, D.C., summers. Baseboard electric heaters provided heating in winter. Before a lot of you post your sympathies in the comments, let me say this:...

230

Determination of pool boiling Critical Heat Flux enhancement in nanofluids  

E-Print Network [OSTI]

Nanofluids are engineered colloids composed of nano-size particles dispersed in common fluids such as water or refrigerants. Using an electrically controlled wire heater, pool boiling Critical Heat Flux (CHF) of Alumina ...

Truong, Bao H. (Bao Hoai)

2007-01-01T23:59:59.000Z

231

Heat transfer from combustion gases to a single row of closely spaced tubes in a swirl crossflow Stirling engine heater  

SciTech Connect (OSTI)

This paper describes an experimental program to determine the heat-transfer characteristics of a combustor and heat-exchange system in a hybrid solar receiver which utilizes a Stirling engine. The system consists of a swirl conbustor with a crossflow heat exchanger composed of a single row of 48 closely spaced curved tubes. In the present study, heat-transfer characteristics of the combustor/heat-exchanger system without a Stirling engine have been studied over a range of operating conditions and output levels using water as the working fluid. Non-dimensional heat-transfer coefficients based on total heat transfer have been obtained and are compared with available literature data. The results show significantly enhanced heat transfer for the present geometry and test conditions. Also, heat transfer along the length of the tubes is found to vary, the effect depending upon test condition.

Bankston, C.P.; Back, L.H.

1982-02-01T23:59:59.000Z

232

Electric heating units in pollination bags avoid damage  

E-Print Network [OSTI]

Electric heating units in pollination bags avoid damage to flowers by spring frost J. CH. FERRAND n'Orlgans Ardon, F 45160 Olivet Summary An effective, cheap and simple heating device was designed by INRA heating, Larix. Controlled crosses are essential for forest tree breeding, but spring frost can destroy

Paris-Sud XI, Université de

233

Overlap zoned electrically heated particulate filter  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than or equal to one, and wherein the N zones and the M sub-zones are arranged in P layers, where P is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

Gonze, Eugene V [Pinckney, MI; Chapman, Mark R [Brighton, MI

2011-07-19T23:59:59.000Z

234

The Boom of Electricity Demand in the Residential Sector in the Developing World and the Potential for Energy Efficiency  

E-Print Network [OSTI]

Domestic Electric Storage Water Heater (DESWH) Test Methodsby products 5 , and water heaters. Appliance diffusion isor endorsement levels. Water Heaters The share of electric

Letschert, Virginie

2010-01-01T23:59:59.000Z

235

Blue Ridge Electric Cooperative- Heat Pump Loan Program  

Broader source: Energy.gov [DOE]

Blue Ridge Electric Cooperative (BREC) offers low interest loans to help members finance the purchase of energy efficient heat pumps. Loans under $1,500 can be financed for up to 42 months, and...

236

Bandera Electric Cooperative- Residential Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

The Bandera Electric Cooperative offers a $200 rebate for the installation of a 15 SEER or higher heat pumps in existing homes. This program is designed to promote energy efficiency in existing...

237

York Electric Cooperative- Dual Fuel Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

York Electric Cooperative, Inc. (YEC) offers a $400 rebate to members who install a dual fuel heat pump in homes or businesses. The rebates are for primary residence and/or commercial and...

238

Innovative Control of Electric Heat in Multifamily Buildings  

E-Print Network [OSTI]

This paper describes the application of web-based wireless technology for control of electric heating in a large multifamily housing complex. The control system architecture and components are described. A web-based application enables remote...

Lempereur, D.; Bobker, M.

2004-01-01T23:59:59.000Z

239

Thermoelectric Conversion of Waste Heat to Electricity in an...  

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

be 500 oC deer09schock.pdf More Documents & Publications Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of...

240

Performance characterization of a hydrogen catalytic heater.  

SciTech Connect (OSTI)

This report describes the performance of a high efficiency, compact heater that uses the catalytic oxidation of hydrogen to provide heat to the GM Hydrogen Storage Demonstration System. The heater was designed to transfer up to 30 kW of heat from the catalytic reaction to a circulating heat transfer fluid. The fluid then transfers the heat to one or more of the four hydrogen storage modules that make up the Demonstration System to drive off the chemically bound hydrogen. The heater consists of three main parts: (1) the reactor, (2) the gas heat recuperator, and (3) oil and gas flow distribution manifolds. The reactor and recuperator are integrated, compact, finned-plate heat exchangers to maximize heat transfer efficiency and minimize mass and volume. Detailed, three-dimensional, multi-physics computational models were used to design and optimize the system. At full power the heater was able to catalytically combust a 10% hydrogen/air mixture flowing at over 80 cubic feet per minute and transfer 30 kW of heat to a 30 gallon per minute flow of oil over a temperature range from 100 C to 220 C. The total efficiency of the catalytic heater, defined as the heat transferred to the oil divided by the inlet hydrogen chemical energy, was characterized and methods for improvement were investigated.

Johnson, Terry Alan; Kanouff, Michael P.

2010-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

AN OPTIMIZED TWO-CAPACITY ADVANCED ELECTRIC HEAT PUMP S. E. Veyo, Manager, Heat Exchange Systems Research  

E-Print Network [OSTI]

#12;AN OPTIMIZED TWO-CAPACITY ADVANCED ELECTRIC HEAT PUMP S. E. Veyo S. E. Veyo, Manager, Heat Exchange Systems Research Westinghouse Electric Corporation, R&D Center 1310 Beulah Road Pittsburgh, PA 15235 KEYWORDS: heat pump, air conditioner, electric, residential, energy, compressor, fan, blower, heat

Oak Ridge National Laboratory

242

Simulation of energy use in residential water heating systems Carolyn Dianarose Schneyer  

E-Print Network [OSTI]

around BC: Kamloops, Victoria and Williams Lake. Electric and gas-fired tank water heaters of various The resulting data is presented from a variety of angles, including the relative impacts of water heater ratingSimulation of energy use in residential water heating systems by Carolyn Dianarose Schneyer B

Victoria, University of

243

Dampers for Natural Draft Heaters: Technical Report  

SciTech Connect (OSTI)

Energy required for water heating accounts for approximately 40percent of national residential natural gas consumption in California. With water heating contributing such a substantial portion of natural gas consumption, it is important to pay attention to water heater efficiencies. This paper reports on an investigation of a patented, buoyancy-operated flue damper. It is an add-on design to a standard atmospherically vented natural-draft gas-fired storage water heater. The flue damper was expected to reduce off-cycle standby losses, which would lead to improvements in the efficiency of the water heater. The test results showed that the Energy Factor of the baseline water heater was 0.576. The recovery efficiency was 0.768. The standby heat loss coefficient was 10.619 (BTU/hr-oF). After the damper was installed, the test results show an Energy Factor for the baseline water heater of 0.605. The recovery efficiency was 0.786. The standby heat loss coefficient was 9.135 (BTU/hr-oF). The recovery efficiency increased 2.3percent and the standby heat loss coefficient decreased 14percent. When the burner was on, the baseline water heater caused 28.0 CFM of air to flow from the room. During standby, the flow was 12.4 CFM. The addition of the damper reduced the flow when the burner was on to 23.5 CFM. During standby, flow with the damper was reduced to 11.1 CFM. The flue damper reduced off-cycle standby losses, and improved the efficiency of the water heater. The flue damper also improved the recovery efficiency of the water heater by restricting on-cycle air flows through the flue.With or without the flue damper, off-cycle air flow upthe stack is nearly half the air flow rate as when the burner is firing.

Lutz, James D.; Biermayer, Peter; King, Derek

2008-10-27T23:59:59.000Z

244

Combustion heater for oil shale  

DOE Patents [OSTI]

A combustion heater for oil shale heats particles of spent oil shale containing unburned char by burning the char. A delayed fall is produced by flowing the shale particles down through a stack of downwardly sloped overlapping baffles alternately extending from opposite sides of a vertical column. The delayed fall and flow reversal occurring in passing from each baffle to the next increase the residence time and increase the contact of the oil shale particles with combustion supporting gas flowed across the column to heat the shale to about 650 to 700/sup 0/C for use as a process heat source.

Mallon, R.; Walton, O.; Lewis, A.E.; Braun, R.

1983-09-21T23:59:59.000Z

245

Combustion heater for oil shale  

DOE Patents [OSTI]

A combustion heater for oil shale heats particles of spent oil shale containing unburned char by burning the char. A delayed fall is produced by flowing the shale particles down through a stack of downwardly sloped overlapping baffles alternately extending from opposite sides of a vertical column. The delayed fall and flow reversal occurring in passing from each baffle to the next increase the residence time and increase the contact of the oil shale particles with combustion supporting gas flowed across the column to heat the shale to about 650.degree.-700.degree. C. for use as a process heat source.

Mallon, Richard G. (Livermore, CA); Walton, Otis R. (Livermore, CA); Lewis, Arthur E. (Los Altos, CA); Braun, Robert L. (Livermore, CA)

1985-01-01T23:59:59.000Z

246

Covered Product Category: Residential Electric Resistance Water...  

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

Electric Resistance Water Heaters Covered Product Category: Residential Electric Resistance Water Heaters The Federal Energy Management Program (FEMP) sets Federal efficiency...

247

Temperature limited heater utilizing non-ferromagnetic conductor  

DOE Patents [OSTI]

A heater is described. The heater includes a ferromagnetic conductor and an electrical conductor electrically coupled to the ferromagnetic conductor. The ferromagnetic conductor is positioned relative to the electrical conductor such that an electromagnetic field produced by time-varying current flow in the ferromagnetic conductor confines a majority of the flow of the electrical current to the electrical conductor at temperatures below or near a selected temperature.

Vinegar; Harold J. (Bellaire, TX), Harris; Christopher Kelvin (Houston, TX)

2012-07-17T23:59:59.000Z

248

Molded polymer solar water heater  

DOE Patents [OSTI]

A solar water heater has a rotationally-molded water box and a glazing subassembly disposed over the water box that enhances solar gain and provides an insulating air space between the outside environment and the water box. When used with a pressurized water system, an internal heat exchanger is integrally molded within the water box. Mounting and connection hardware is included to provide a rapid and secure method of installation.

Bourne, Richard C.; Lee, Brian E.

2004-11-09T23:59:59.000Z

249

Electrolyte injection with electrical resistance heating  

E-Print Network [OSTI]

the effects of dielectric losses (as well as of other high frequency processes) are comparatively small. The heat generated this way elevates the temperature of the reservoir and reduces the viscosity of oil, This results in an increase of the mobility... would like to thank Mobil Oil Corporation, Halliburton Reservoir Services Inc. , and Electromagnetic Oil Recovery Ltd. for the financial support of this project. The author would also like to thank Ecopetrol and its research center, Instituto...

Jaimes Gomez, Olmedo

1992-01-01T23:59:59.000Z

250

Using Exergy Analysis Methodology to Assess the Heating Efficiency of an Electric Heat Pump  

E-Print Network [OSTI]

The authors, using exergy analysis methodology, propose that it should consider not only the COP (coefficient of Performance) value of the electric power heat pump set (EPHPS/or HP set), but also the exergy loss at the heating exchanger of the HP...

Ao, Y.; Duanmu, L.; Shen, S.

2006-01-01T23:59:59.000Z

251

Iron aluminide useful as electrical resistance heating elements  

DOE Patents [OSTI]

The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, .ltoreq.1% Cr and either .gtoreq.0.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element or .gtoreq.0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, .ltoreq.1% oxygen, .ltoreq.3% Cu, balance Fe.

Sikka, Vinod K. (Oak Ridge, TN); Deevi, Seetharama C. (Oak Ridge, TN); Fleischhauer, Grier S. (Midlothian, VA); Hajaligol, Mohammad R. (Richmond, VA); Lilly, Jr., A. Clifton (Chesterfield, VA)

2001-01-01T23:59:59.000Z

252

Iron aluminide useful as electrical resistance heating elements  

DOE Patents [OSTI]

The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, .ltoreq.1% Cr and either .gtoreq.0.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element or .gtoreq.0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, .ltoreq.1% oxygen, .ltoreq.3% Cu, balance Fe.

Sikka, Vinod K. (Oak Ridge, TN); Deevi, Seetharama C. (Oak Ridge, TN); Fleischhauer, Grier S. (Midlothian, VA); Hajaligol, Mohammad R. (Richmond, VA); Lilly, Jr., A. Clifton (Chesterfield, VA)

1999-01-01T23:59:59.000Z

253

Iron aluminide useful as electrical resistance heating elements  

DOE Patents [OSTI]

The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, {<=}1% Cr and either {>=}0.05% Zr or ZrO{sub 2} stringers extending perpendicular to an exposed surface of the heating element or {>=}0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, {<=}2% Ti, {<=}2% Mo, {<=}1% Zr, {<=}1% C, {<=}0.1% B, {<=}30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, {<=}1% rare earth metal, {<=}1% oxygen, {<=}3% Cu, balance Fe. 64 figs.

Sikka, V.K.; Deevi, S.C.; Fleischhauer, G.S.; Hajaligol, M.R.; Lilly, A.C. Jr.

1997-04-15T23:59:59.000Z

254

Iron aluminide useful as electrical resistance heating elements  

DOE Patents [OSTI]

The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, .ltoreq.1% Cr and either .gtoreq.0.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element or .gtoreq.0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, .ltoreq.1% oxygen, .ltoreq.3% Cu, balance Fe.

Sikka, Vinod K. (Oak Ridge, TN); Deevi, Seetharama C. (Oak Ridge, TN); Fleischhauer, Grier S. (Midlothian, VA); Hajaligol, Mohammad R. (Richmond, VA); Lilly, Jr., A. Clifton (Chesterfield, VA)

1997-01-01T23:59:59.000Z

255

Dampers for Natural Draft Heaters: Technical Report  

E-Print Network [OSTI]

Storage Water Heater.draft gas-fired storage water heater. The flue damper waswater heater, gas-fired storage water heater, flue damper,

Lutz, James D.

2009-01-01T23:59:59.000Z

256

Electric Resistance Heating Basics | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTanklessDOJ TitleDr. Steven ChuEffect of IncreasedElectric

257

Climate, extreme heat, and electricity demand in California  

SciTech Connect (OSTI)

Climate projections from three atmosphere-ocean climate models with a range of low to mid-high temperature sensitivity forced by the Intergovernmental Panel for Climate Change SRES higher, middle, and lower emission scenarios indicate that, over the 21st century, extreme heat events for major cities in heavily air-conditioned California will increase rapidly. These increases in temperature extremes are projected to exceed the rate of increase in mean temperature, along with increased variance. Extreme heat is defined here as the 90 percent exceedance probability (T90) of the local warmest summer days under the current climate. The number of extreme heat days in Los Angeles, where T90 is currently 95 F (32 C), may increase from 12 days to as many as 96 days per year by 2100, implying current-day heat wave conditions may last for the entire summer, with earlier onset. Overall, projected increases in extreme heat under the higher A1fi emission scenario by 2070-2099 tend to be 20-30 percent higher than those projected under the lower B1 emission scenario, ranging from approximately double the historical number of days for inland California cities (e.g. Sacramento and Fresno), up to four times for previously temperate coastal cities (e.g. Los Angeles, San Diego). These findings, combined with observed relationships between high temperature and electricity demand for air-conditioned regions, suggest potential shortfalls in transmission and supply during T90 peak electricity demand periods. When the projected extreme heat and peak demand for electricity are mapped onto current availability, maintaining technology and population constant only for demand side calculations, we find the potential for electricity deficits as high as 17 percent. Similar increases in extreme heat days are suggested for other locations across the U.S. southwest, as well as for developing nations with rapidly increasing electricity demands. Electricity response to recent extreme heat events, such as the July 2006 heat wave in California, suggests that peak electricity demand will challenge current supply, as well as future planned supply capacities when population and income growth are taken into account.

Miller, N.L.; Hayhoe, K.; Jin, J.; Auffhammer, M.

2008-04-01T23:59:59.000Z

258

Life cycle assessment of buildings technologies: High-efficiency commercial lighting and residential water heaters  

SciTech Connect (OSTI)

In this study the life cycle emissions and energy use are estimated for two types of energy technologies. The first technology evaluated is the sulfur lamp, a high-efficiency lighting system under development by the US Department of Energy (DOE) and Fusion Lighting, the inventor of the technology. The sulfur lamp is compared with conventional metal halide high-intensity discharge lighting systems. The second technology comparison is between standard-efficiency and high-efficiency gas and electric water heaters. In both cases the life cycle energy use and emissions are presented for the production of an equivalent level of service by each of the technologies. For both analyses, the energy use and emissions from the operation of the equipment are found to dominate the life cycle profile. The life cycle emissions for the water heating systems are much more complicated. The four systems compared include standard- and high-efficiency gas water heaters, standard electric resistance water heaters, and heat pump water heaters.

Freeman, S.L.

1997-01-01T23:59:59.000Z

259

Performance testing and Bayesian Reliability Analysis of small diameter, high power electric heaters for the simulation of nuclear fuel rod temperatures  

E-Print Network [OSTI]

proposed full test using prototypic mixed-oxide fuel (MOX) containing plutonium from converted nuclear weapons. Bayesian reliability analysis methods were used to determine the expected heater failure rate because of the expected short test duration...

O'Kelly, David Sean

2012-06-07T23:59:59.000Z

260

DSM Electricity Savings Potential in the Buildings Sector in APP Countries  

E-Print Network [OSTI]

development, like for heat pump water heaters. The objectiveheat pumps Warm-air furnaces Package boilers Storage & instantaneous water heaters

McNeil, MIchael

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Fired heater for coal liquefaction process  

DOE Patents [OSTI]

A fired heater for a coal liquefaction process is constructed with a heat transfer tube having U-bends at regular intervals along the length thereof to increase the slug frequency of the multi-phase mixture flowing therethrough to thereby improve the heat transfer efficiency.

Ying, David H. S. (Macungie, PA)

1984-01-01T23:59:59.000Z

262

Single-photon heat conduction in electrical circuits  

E-Print Network [OSTI]

We study photonic heat conduction between two resistors coupled weakly to a single superconducting microwave cavity. At low enough temperature, the dominating part of the heat exchanged between the resistors is transmitted by single-photon excitations of the fundamental mode of the cavity. This manifestation of single-photon heat conduction should be experimentally observable with the current state of the art. Our scheme can possibly be utilized in remote interference-free temperature control of electric components and environment engineering for superconducting qubits coupled to cavities.

Jones, P J; Tan, K Y; Möttönen, M

2011-01-01T23:59:59.000Z

263

Single-photon heat conduction in electrical circuits  

E-Print Network [OSTI]

We study photonic heat conduction between two resistors coupled weakly to a single superconducting microwave cavity. At low enough temperature, the dominating part of the heat exchanged between the resistors is transmitted by single-photon excitations of the fundamental mode of the cavity. This manifestation of single-photon heat conduction should be experimentally observable with the current state of the art. Our scheme can possibly be utilized in remote interference-free temperature control of electric components and environment engineering for superconducting qubits coupled to cavities.

P. J. Jones; J. A. M. Huhtamäki; K. Y. Tan; M. Möttönen

2011-07-14T23:59:59.000Z

264

Power systems utilizing the heat of produced formation fluid  

DOE Patents [OSTI]

Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method includes treating a hydrocarbon containing formation. The method may include providing heat to the formation; producing heated fluid from the formation; and generating electricity from at least a portion of the heated fluid using a Kalina cycle.

Lambirth, Gene Richard (Houston, TX)

2011-01-11T23:59:59.000Z

265

Nuclear Plant Feedwater Heater Handbook. Volume 3. Operation and maintenance guidelines. Final report  

SciTech Connect (OSTI)

This document is the third part of a three-volume handbook covering closed feedwater heaters for nuclear electric power generating plants. This third volume covers the operation and maintenance of closed feedwater heaters. 11 refs., 23 figs., 5 tabs.

Bell, R.J.; Hardy, C.D. Jr.

1985-06-01T23:59:59.000Z

266

Electrically heated particulate filter diagnostic systems and methods  

DOE Patents [OSTI]

A system that diagnoses regeneration of an electrically heated particulate filter is provided. The system generally includes a grid module that diagnoses a fault of the grid based on at least one of a current signal and a voltage signal. A diagnostic module at least one of sets a fault status and generates a warning signal based on the fault of the grid.

Gonze, Eugene V [Pinckney, MI

2009-09-29T23:59:59.000Z

267

Technologies for Production of Heat and Electricity  

SciTech Connect (OSTI)

Biomass is a desirable source of energy because it is renewable, sustainable, widely available throughout the world, and amenable to conversion. Biomass is composed of cellulose, hemicellulose, and lignin components. Cellulose is generally the dominant fraction, representing about 40 to 50% of the material by weight, with hemicellulose representing 20 to 50% of the material, and lignin making up the remaining portion [4,5,6]. Although the outward appearance of the various forms of cellulosic biomass, such as wood, grass, municipal solid waste (MSW), or agricultural residues, is different, all of these materials have a similar cellulosic composition. Elementally, however, biomass varies considerably, thereby presenting technical challenges at virtually every phase of its conversion to useful energy forms and products. Despite the variances among cellulosic sources, there are a variety of technologies for converting biomass into energy. These technologies are generally divided into two groups: biochemical (biological-based) and thermochemical (heat-based) conversion processes. This chapter reviews the specific technologies that can be used to convert biomass to energy. Each technology review includes the description of the process, and the positive and negative aspects.

Jacob J. Jacobson; Kara G. Cafferty

2014-04-01T23:59:59.000Z

268

Outline for a multi-cell nuclear thermionic fuel element that may be pretested with electric heat  

SciTech Connect (OSTI)

A nuclear thermionic converter electrical generating system is proposed in which the nuclear fuel is clad in tungsten (W) and transmits heat to a tungsten emitter by radiation. The tungsten clad is a single unit, containing a continuous fuel stack with an unfueled section extending through one end of the reactor. The emitters are electrically insulated from the heat source; therefore, several converters may be connected by short leads to produce more voltage per fuel element and to reduce the power losses in the leads. A fast reactor design was chosen; consequently, tungsten may be used for the fuel cladding and the emitters without a significant reactivity penalty due to neutron capture by tungsten epithermal resonances. The ability to use all-tungsten emitters may permit high emitter temperatures. Calculations indicate that at an emitter temperature of 2150 K and current density of 10A/cm{sup 2}, a 36 cm long thermionic fuel element (TFE) with 9 converters in series should produce 4500W{sub e} at 9.2 V and 15.7{percent} efficiency. One major advantage of this approach, relative to typical multicell designs is that the system can be tested by electrical heaters in the fuel cavity before loading fuel. {copyright} {ital 1997 American Institute of Physics.}

Wilson, V.C. [General Electric RDC, retired 2446 A Del Norte Dr. SW Albuquerque, New Mexico871059 (United States)

1997-01-01T23:59:59.000Z

269

Outline for a multi-cell nuclear thermionic fuel element that may be pretested with electric heat  

SciTech Connect (OSTI)

A nuclear thermionic converter electrical generating system is proposed in which the nuclear fuel is clad in tungsten (W) and transmits heat to a tungsten emitter by radiation. The tungsten clad is a single unit, containing a continuous fuel stack with an unfueled section extending through one end of the reactor. The emitters are electrically insulated from the heat source; therefore, several converters may be connected by short leads to produce more voltage per fuel element and to reduce the power losses in the leads. A fast reactor design was chosen; consequently, tungsten may be used for the fuel cladding and the emitters without a significant reactivity penalty due to neutron capture by tungsten epithermal resonances. The ability to use all-tungsten emitters may permit high emitter temperatures. Calculations indicate that at an emitter temperature of 2150 K and current density of 10 A/cm{sup 2}, a 36 cm long thermionic fuel element (TFE) with 9 converters in series should produce 4500 W{sub e} at 9.2 V and 15.7% efficiency. One major advantage of this approach, relative to typical multicell designs is that the system can be tested by electrical heaters in the fuel cavity before loading fuel.

Wilson, Volney C. [General Electric R and DC, retired 2446 A Del Norte Dr. SW Albuquerque, New Mexico 87105 (United States)

1997-01-10T23:59:59.000Z

270

Gas Water Heater Energy Losses  

E-Print Network [OSTI]

Input Screens SCREEN D1: WATER HEATER SPECIFICATIONS 1. Tankthe house. Supply pipe – this is the water heater inlet pipewith refills the water heater with cold water Note: The TANK

Biermayer, Peter

2012-01-01T23:59:59.000Z

271

Gas Water Heater Energy Losses  

E-Print Network [OSTI]

residential gas-fired storage water heater was modeled underin a typical residential storage water heater that meets thereplace a gas-fired storage water heater with a conventional

Biermayer, Peter

2012-01-01T23:59:59.000Z

272

Illustrative Calculation of Economics for Heat Pump and "Grid...  

Energy Savers [EERE]

Illustrative Calculation of Economics for Heat Pump and "Grid-Enabled" Water Heaters Illustrative Calculation of Economics for Heat Pump and "Grid-Enabled" Water Heaters Rate...

273

DOE Publishes Notice of Proposed Rulemaking for Direct Heating...  

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

Direct Heating Equipment and Pool Heater Test Procedures DOE Publishes Notice of Proposed Rulemaking for Direct Heating Equipment and Pool Heater Test Procedures October 24, 2013 -...

274

Development of an Accurate Feed-Forward Temperature Control Tankless Water Heater  

SciTech Connect (OSTI)

The following document is the final report for DE-FC26-05NT42327: Development of an Accurate Feed-Forward Temperature Control Tankless Water Heater. This work was carried out under a cooperative agreement from the Department of Energy's National Energy Technology Laboratory, with additional funding from Keltech, Inc. The objective of the project was to improve the temperature control performance of an electric tankless water heater (TWH). The reason for doing this is to minimize or eliminate one of the barriers to wider adoption of the TWH. TWH use less energy than typical (storage) water heaters because of the elimination of standby losses, so wider adoption will lead to reduced energy consumption. The project was carried out by Building Solutions, Inc. (BSI), a small business based in Omaha, Nebraska. BSI partnered with Keltech, Inc., a manufacturer of electric tankless water heaters based in Delton, Michigan. Additional work was carried out by the University of Nebraska and Mike Coward. A background study revealed several advantages and disadvantages to TWH. Besides using less energy than storage heaters, TWH provide an endless supply of hot water, have a longer life, use less floor space, can be used at point-of-use, and are suitable as boosters to enable alternative water heating technologies, such as solar or heat-pump water heaters. Their disadvantages are their higher cost, large instantaneous power requirement, and poor temperature control. A test method was developed to quantify performance under a representative range of disturbances to flow rate and inlet temperature. A device capable of conducting this test was designed and built. Some heaters currently on the market were tested, and were found to perform quite poorly. A new controller was designed using model predictive control (MPC). This control method required an accurate dynamic model to be created and required significant tuning to the controller before good control was achieved. The MPC design was then implemented on a prototype heater that was being developed simultaneously with the controller development. (The prototype's geometry and components are based on a currently marketed heater, but several improvements have been made.) The MPC's temperature control performance was a vast improvement over the existing controller. With a benchmark for superior control performance established, five additional control methods were tested. One problem with MPC control is that it was found to be extremely difficult to implement in a TWH, so that it is unlikely to be widely adopted by manufacturers. Therefore the five additional control methods were selected based on their simplicity; each could be implemented by a typical manufacturer. It was found that one of these methods performed as well as MPC, or even better under many circumstances. This method uses a Feedback-Compensated Feed-Forward algorithm that was developed for this project. Due to its simplicity and excellent performance this method was selected as the controller of choice. A final higher-capacity prototype heater that uses Feedback-Compensated Feed-Forward control was constructed. This prototype has many improvements over the currently marketed heaters: (1) excellent control; (2) a modular design that allows for different capacity heaters to be built easily; (3) built-in fault detection and diagnosis; (4) a secondary remote user-interface; and (5) a TRIAC switching algorithm that will minimize 'flicker factor'. The design and engineering of this prototype unit will allow it to be built without an increase in cost, compared with the currently marketed heater. A design rendering of the new product is shown below. It will be launched with a new marketing campaign by Keltech in early 2009.

David Yuill

2008-06-30T23:59:59.000Z

275

Absorption Heat Pump Water Heater  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartment of Energy 601Department ofEnergy PHEVAbengoaAbsocold:

276

Assessment of radioisotope heaters for remote terrestrial applications  

SciTech Connect (OSTI)

This paper examines the feasibility of using radioisotope byproducts for special heating applications at remote sites in Alaska and other cold regions. The investigation included assessment of candidate radioisotope materials for heater applications, identification of the most promising cold region applications, evaluation of key technical issues and implementation constraints, and development of conceptual heater designs for candidate applications. Strontium-90 (Sr-90) was selected as the most viable fuel for radioisotopic heaters used in terrestrial applications. Opportunities for the application of radioisotopic heaters were determined through site visits to representative Alaska installations. Candidate heater applications included water storage tanks, sludge digesters, sewage lagoons, water piping systems, well-head pumping stations, emergency shelters, and fuel storage tank deicers. Radioisotopic heaters for water storage tank freeze-up protection and for enhancement of biological waste treatment processes at remote sites were selected as the most promising applications.

Uherka, K.L.

1987-05-01T23:59:59.000Z

277

Measure Guideline: Transitioning to a Tankless Water Heater  

SciTech Connect (OSTI)

This Measure Guideline provides information to help residential builders and retrofitters with the design, specification, selection, implementation, installation, and maintenance issues of transitioning from tank-type water heaters to tankless water heaters. The report compares the differences between tankless and tank-type water heaters, highlighting the energy savings that can be realized by adopting tankless water heaters over tank-type water heaters. Selection criteria and risks discussed include unit sizing and location, water distribution system, plumbing line length and diameter, water quality, electrical backup, and code issues. Cost and performance data are provided for various types of tankless and tank-type water heaters, both natural gas fired and electric. Also considered are interactions between the tankless water heater and other functional elements of a house, such as cold water supply and low-flow devices. Operating costs and energy use of water distribution systems for single- and two-story houses are provided, along with discussion of the various types of distribution systems that can be used with tankless water heaters. Finally, details to prepare for proper installation of a tankless water heater are described.

Brozyna, K.; Rapport, A.

2012-09-01T23:59:59.000Z

278

Electrode wells for powerline-frequency electrical heating of soils  

DOE Patents [OSTI]

An electrode well for use in powerline-frequency heating of soils for decontamination of the soil. Heating of soils enables the removal of volatile organic compounds from soil when utilized in combination with vacuum extraction. A preferred embodiment of the electrode well utilizes a mild steel pipe as the current-carrying conductor to at least one stainless steel electrode surrounded by a conductive backfill material, preferably graphite or steel shot. A covering is also provided for electrically insulating the current-carrying pipe. One of the electrode wells is utilized with an extraction well which is under subatmospheric pressure to withdraw the volatile material, such as gasoline and trichioroethylene (TCE) as it is heated.

Buettner, Harley M. (Livermore, CA); Daily, William D. (Livermore, CA); Aines, Roger D. (Livermore, CA); Newmark, Robin L. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Siegel, William H. (Livermore, CA)

1999-01-01T23:59:59.000Z

279

Electrode wells for powerline-frequency electrical heating of soils  

DOE Patents [OSTI]

An electrode well is described for use in powerline-frequency heating of soils for decontamination of the soil. Heating of soils enables the removal of volatile organic compounds from soil when utilized in combination with vacuum extraction. A preferred embodiment of the electrode well utilizes a mild steel pipe as the current-carrying conductor to at least one stainless steel electrode surrounded by a conductive backfill material, preferably graphite or steel shot. A covering is also provided for electrically insulating the current-carrying pipe. One of the electrode wells is utilized with an extraction well which is under subatmospheric pressure to withdraw the volatile material, such as gasoline and trichloroethylene (TCE) as it is heated. 4 figs.

Buettner, H.M.; Daily, W.D.; Aines, R.D.; Newmark, R.L.; Ramirez, A.L.; Siegel, W.H.

1999-05-25T23:59:59.000Z

280

Electric equipment providing space conditioning, water heating, and refrigeration consumes 12.5% of the nation's  

E-Print Network [OSTI]

Electric equipment providing space conditioning, water heating, and refrigeration consumes 12 are the heart of air conditioners, heat pumps, chillers, supermarket refrigeration systems, and more. Global use of vapor compression system configurations including multi-functional integrated heat pumps, multi

Oak Ridge National Laboratory

Note: This page contains sample records for the topic "heaters electric heat" 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

Phase change material storage heater  

DOE Patents [OSTI]

A storage heater for storing heat and for heating a fluid, such as water, has an enclosure defining a chamber therein. The chamber has a lower portion and an upper portion with a heating element being disposed within the enclosure. A tube through which the fluid flows has an inlet and an outlet, both being disposed outside of the enclosure, and has a portion interconnecting the inlet and the outlet that passes through the enclosure. A densely packed bed of phase change material pellets is disposed within the enclosure and is surrounded by a viscous liquid, such as propylene glycol. The viscous liquid is in thermal communication with the heating element, the phase change material pellets, and the tube and transfers heat from the heating element to the pellets and from the pellets to the tube. The viscous fluid has a viscosity so that the frictional pressure drop of the fluid in contact with the phase change material pellets substantially reduces vertical thermal convection in the fluid. As the fluid flows through the tube heat is transferred from the viscous liquid to the fluid flowing through the tube, thereby heating the fluid.

Goswami, D. Yogi (Gainesville, FL); Hsieh, Chung K. (Gainesville, FL); Jotshi, Chand K. (Gainesville, FL); Klausner, James F. (Gainesville, FL)

1997-01-01T23:59:59.000Z

282

Explosives tester with heater  

DOE Patents [OSTI]

An inspection tester system for testing for explosives. The tester includes a body and a swab unit adapted to be removeably connected to the body. At least one reagent holder and dispenser is operatively connected to the body. The reagent holder and dispenser contains an explosives detecting reagent and is positioned to deliver the explosives detecting reagent to the swab unit. A heater is operatively connected to the body and the swab unit is adapted to be operatively connected to the heater.

Del Eckels, Joel (Livermore, CA); Nunes, Peter J. (Danville, CA); Simpson, Randall L. (Livermore, CA); Whipple, Richard E. (Livermore, CA); Carter, J. Chance (Livermore, CA); Reynolds, John G. (San Ramon, CA)

2010-08-10T23:59:59.000Z

283

A Comparison of Domestic Water Heating Options in the Austin Electric Service Area  

E-Print Network [OSTI]

controlled and actual opera tinp, situations. The larye DOE/ORNL/EUS field test of HPVHs was probably the most co~nprehensive (3). The Florida Public Service Colmi~ission sporlsored saveral field tests of all four water heating systems to evaluate.... Thesis, The University of Texas at ----- Austin, Dec.. 1982. 2. Askey, Jay L., The Effect of Residential 3. R. P. Blevins, B. D. Sloan, and G. E. Malli. "Demonstration of a Heat Pump Water Heater, Volume 2: Final Report." ORNL/Sub-7321-4, Oak Ridge...

Vliet, G. C.; Hood, D. B.

1985-01-01T23:59:59.000Z

284

Dampers for Natural Draft Heaters: Technical Report  

E-Print Network [OSTI]

Oil? Fired Residential Water Heaters. Berkeley Heights, Newof Residential Gas Water Heaters. Chicago, IL, Gas ApplianceDampers for Natural Draft Water Heaters: Technical Report.

Lutz, James D.

2009-01-01T23:59:59.000Z

285

Water Heaters and Hot Water Distribution Systems  

E-Print Network [OSTI]

Gas-fired Storage Water Heater .. 418 Assess California’s Small Gas Storage Water Heaters Small Gas Storage Water Heater Market The objective of

Lutz, Jim

2012-01-01T23:59:59.000Z

286

SINGLE HEATER TEST FINAL REPORT  

SciTech Connect (OSTI)

The Single Heater Test is the first of the in-situ thermal tests conducted by the U.S. Department of Energy as part of its program of characterizing Yucca Mountain in Nevada as the potential site for a proposed deep geologic repository for the disposal of spent nuclear fuel and high-level nuclear waste. The Site Characterization Plan (DOE 1988) contained an extensive plan of in-situ thermal tests aimed at understanding specific aspects of the response of the local rock-mass around the potential repository to the heat from the radioactive decay of the emplaced waste. With the refocusing of the Site Characterization Plan by the ''Civilian Radioactive Waste Management Program Plan'' (DOE 1994), a consolidated thermal testing program emerged by 1995 as documented in the reports ''In-Situ Thermal Testing Program Strategy'' (DOE 1995) and ''Updated In-Situ Thermal Testing Program Strategy'' (CRWMS M&O 1997a). The concept of the Single Heater Test took shape in the summer of 1995 and detailed planning and design of the test started with the beginning fiscal year 1996. The overall objective of the Single Heater Test was to gain an understanding of the coupled thermal, mechanical, hydrological, and chemical processes that are anticipated to occur in the local rock-mass in the potential repository as a result of heat from radioactive decay of the emplaced waste. This included making a priori predictions of the test results using existing models and subsequently refining or modifying the models, on the basis of comparative and interpretive analyses of the measurements and predictions. A second, no less important, objective was to try out, in a full-scale field setting, the various instruments and equipment to be employed in the future on a much larger, more complex, thermal test of longer duration, such as the Drift Scale Test. This ''shake down'' or trial aspect of the Single Heater Test applied not just to the hardware, but also to the teamwork and cooperation between multiple organizations performing their part in the test.

J.B. Cho

1999-05-01T23:59:59.000Z

287

Outdoor unit construction for an electric heat pump  

DOE Patents [OSTI]

The outdoor unit for an electric heat pump is provided with an upper portion containing propeller fan means for drawing air through the lower portion containing refrigerant coil means in the form of four discrete coils connected together in a subassembly forming a W shape, the unit being provided with four adjustable legs which are retracted in shipment, and are adjusted on site to elevate the unit to a particular height suitable for the particular location in which the unit is installed. 4 figs.

Draper, R.; Lackey, R.S.

1984-09-11T23:59:59.000Z

288

Outdoor unit construction for an electric heat pump  

DOE Patents [OSTI]

The outdoor unit for an electric heat pump is provided with an upper portion 10 containing propeller fan means 14 for drawing air through the lower portion 12 containing refrigerant coil means 16 in the form of four discrete coils connected together in a subassembly forming a W shape, the unit being provided with four adjustable legs 64 which are retracted in shipment, and are adjusted on site to elevate the unit to a particular height suitable for the particular location in which the unit is installed.

Draper, Robert (Pittsburgh, PA); Lackey, Robert S. (Pittsburgh, PA)

1984-01-01T23:59:59.000Z

289

Electrically heated particulate filter regeneration using hydrocarbon adsorbents  

DOE Patents [OSTI]

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

Gonze, Eugene V [Pinckney, MI

2011-02-01T23:59:59.000Z

290

Volumetric In Situ Electrical Heating: An Unexploited Electrotechnology  

E-Print Network [OSTI]

of the product or combustion of the more volatile products of the process. '17 In the mid-1970s, we at lIT Research Institute (IITRI) became interested in heating warehouse-size blocks of oil shale with electrical energy principally in the shortwave radio...-frequency (RF) band. A thermally efficient method to do this was demonstrated in a series of small-scale field tests in the late 1970s and early 1980s, but most of the activity with respect to oil shale was shelved because of the drop in oil prices...

Bridges, J. E.

291

Review of International Methods of Test to Rate the Efficiency of Water Heaters  

E-Print Network [OSTI]

Water Heaters Jim Lutz, Lawrence Berkeley National Laboratory January 25, 2011 The American Society of Heating, Refrigerating, and Air-conditioning Engineers (ASHRAE) Standards

Lutz, Jim

2012-01-01T23:59:59.000Z

292

E-Print Network 3.0 - air heater experiment Sample Search Results  

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

air heat... exchanger Two dc power supplies; power supply for running the cooling fan Thermocouples, heaters, load Source: Braun, Paul - Department of Materials...

293

Ninety - Two Percent Minimum Heater Efficiency By 1980  

E-Print Network [OSTI]

exchangers used to transfer heat to tqe com- I bustion air are divided into two groups. IndiIlect ! heat exchangers called "regenerative" types an~ direct heat exchangers called "recuperative" types. In a regenerative air heater, heat is transferred i...~duced I draft, air preheat system. This system can ac~omodate either a regenerative or recuperative air heater and ! Fig. 5 - Heat recovery systems. 857 ESL-IE-80-04-157 Proceedings from the Second Industrial Energy Technology Conference Houston, TX...

Mieth, H. C.; Hardie, J. E.

1980-01-01T23:59:59.000Z

294

Effect of Joule heating on orientation of spheroidal particle in alternating electric field  

E-Print Network [OSTI]

Effect of Joule heating on orientation of spheroidal particle in alternating electric field Yu electric conductivities. We show that the rate of Joule heating of the particle depends on the orientation electric conductivity in the system. The frequen- cies 1 and 2 are determined by biquadratic equation see

Elperin, Tov

295

Energy Conservation in Process Heaters  

E-Print Network [OSTI]

ENERGY CONSERVATION IN PROCESS HEATERS Roger l~. Bagge Neste Engineering Porvoo, Finland ABSTRACT OPTIMIZATION OF EMER~Y USE Energy savings in refinery and petrochemical fired heaters can basically be achieved in two ways: Thru optimization...

Bagge, R. W.

1982-01-01T23:59:59.000Z

296

Heat Transfer -2 A long copper wire is used to carry an electric current and has an electrical resistance of 0.4 ohm  

E-Print Network [OSTI]

Heat Transfer - 2 A long copper wire is used to carry an electric current and has an electrical the electrical heat generation per length of wire (W/m) when current is 170 A. c) (10 pts) Find the steady state temperature of the wire for b). d) (10 pts) Find the electrical heat generation per length of wire (W/m) when

Virginia Tech

297

Combined Operation of Solar Energy Source Heat Pump, Low-vale Electricity and Floor Radiant System  

E-Print Network [OSTI]

solar energy, low-vale electricity as heat sources in a floor radiant system are analyzed. This paper presents a new heat pump system and discusses its operational modes in winter....

Liu, G.; Guo, Z.; Hu, S.

2006-01-01T23:59:59.000Z

298

Heat exchanger design for thermoelectric electricity generation from low temperature flue gas streams  

E-Print Network [OSTI]

An air-to-oil heat exchanger was modeled and optimized for use in a system utilizing a thermoelectric generator to convert low grade waste heat in flue gas streams to electricity. The NTU-effectiveness method, exergy, and ...

Latcham, Jacob G. (Jacob Greco)

2009-01-01T23:59:59.000Z

299

Abstract--The deployment of small (generators, heat and electrical storage, efficiency investments,  

E-Print Network [OSTI]

1 Abstract--The deployment of small (generators, heat and electrical storage-CAM], extended to incorporate electrical storage options. DER-CAM chooses annual energy bill minimizing systems management systems, cogeneration, cooling, cost optimal control, dispersed storage and generation

Guillas, Serge

300

Electric, Gas, Water, Heating, Refrigeration, and Street Railways Facilities and Service (South Dakota)  

Broader source: Energy.gov [DOE]

This legislation contains provisions for facilities and service related to electricity, natural gas, water, heating, refrigeration, and street railways. The chapter addresses the construction and...

Note: This page contains sample records for the topic "heaters electric heat" 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

QUANTUM WELL THERMOELECTRICS FOR CONVERTING WASTE HEAT TO ELECTRICITY  

SciTech Connect (OSTI)

New thermoelectric materials using Quantum Well (QW) technology are expected to increase the energy conversion efficiency to more than 25% from the present 5%, which will allow for the low cost conversion of waste heat into electricity. Hi-Z Technology, Inc. has been developing QW technology over the past six years. It will use Caterpillar, Inc., a leader in the manufacture of large scale industrial equipment, for verification and life testing of the QW films and modules. Other members of the team are Pacific Northwest National Laboratory, who will sputter large area QW films. The Scope of Work is to develop QW materials from their present proof-of-principle technology status to a pre-production level over a proposed three year period. This work will entail fabricating the QW films through a sputtering process of 50 {micro}m thick multi layered films and depositing them on 12 inch diameter, 5 {micro}m thick Si substrates. The goal in this project is to produce a basic 10-20 watt module that can be used to build up any size generator such as: a 5-10 kW Auxiliary Power Unit (APU), a multi kW Waste Heat Recovery Generator (WHRG) for a class 8 truck or as small as a 10-20 watt unit that would fit on a daily used wood fired stove and allow some of the estimated 2-3 billion people on earth, who have no electricity, to recharge batteries (such as a cell phone) or directly power radios, TVs, computers and other low powered devices.

Saeid Ghamaty; Sal Marchetti

2005-03-03T23:59:59.000Z

302

QUANTUM WELL THERMOELECTRICS FOR CONVERTING WASTE HEAT TO ELECTRICITY  

SciTech Connect (OSTI)

New thermoelectric materials using Quantum Well (QW) technology are expected to increase the energy conversion efficiency to more than 25% from the present 5%, which will allow for the low cost conversion of waste heat into electricity. Hi-Z Technology, Inc. has been developing QW technology over the past six years. It will use Caterpillar, Inc., a leader in the manufacture of large scale industrial equipment, for verification and life testing of the QW films and modules. Other members of the team are Pacific Northwest National Laboratory, who will sputter large area QW films. The Scope of Work is to develop QW materials from their present proof-of-principle technology status to a pre-production level over a proposed three year period. This work will entail fabricating the QW films through a sputtering process of 50 {micro}m thick multi layered films and depositing them on 12 inch diameter, 5 {micro}m thick Si substrates. The goal in this project is to produce a basic 10-20 watt module that can be used to build up any size generator such as: a 5-10 kW Auxiliary Power Unit (APU), a multi kW Waste Heat Recovery Generator (WHRG) for a class 8 truck or as small as a 10-20 watt unit that would fit on a daily used wood fired stove and allow some of the estimated 2-3 billion people on earth, who have no electricity, to recharge batteries (such as a cell phone) or directly power radios, TVs, computers and other low powered devices.

Saeid Ghamaty; Sal Marchetti

2004-05-10T23:59:59.000Z

303

QUANTUM WELL THERMOELECTRICS FOR CONVERTING WASTE HEAT TO ELECTRICITY  

SciTech Connect (OSTI)

New thermoelectric materials using Quantum Well (QW) technology are expected to increase the energy conversion efficiency to more than 25% from the present 5%, which will allow for the low cost conversion of waste heat into electricity. Hi-Z Technology, Inc. has been developing QW technology over the past six years. It will use Caterpillar, Inc., a leader in the manufacture of large scale industrial equipment, for verification and life testing of the QW films and modules. Other members of the team are Pacific Northwest National Laboratory, who will sputter large area QW films. The Scope of Work is to develop QW materials from their present proof-of-principle technology status to a pre-production level over a proposed three year period. This work will entail fabricating the QW films through a sputtering process of 50 {micro}m thick multi layered films and depositing them on 12 inch diameter, 5 {micro}m thick Si substrates. The goal in this project is to produce a basic 10-20 watt module that can be used to build up any size generator such as: a 5-10 kW Auxiliary Power Unit (APU), a multi kW Waste Heat Recovery Generator (WHRG) for a class 8 truck or as small as a 10-20 watt unit that would fit on a daily used wood fired stove and allow some of the estimated 2-3 billion people on earth, who have no electricity, to recharge batteries (such as a cell phone) or directly power radios, TVs, computers and other low powered devices.

Saeid Ghamaty; Sal Marchetti

2004-07-30T23:59:59.000Z

304

Lid heater for glass melter  

DOE Patents [OSTI]

A glass melter having a lid electrode for heating the glass melt radiantly. The electrode comprises a series of INCONEL 690 tubes running above the melt across the melter interior and through the melter walls and having nickel cores inside the tubes beginning where the tubes leave the melter interior and nickel connectors to connect the tubes electrically in series. An applied voltage causes the tubes to generate heat of electrical resistance for melting frit injected onto the melt. The cores limit heat generated as the current passes through the walls of the melter. Nickel bus connection to the electrical power supply minimizes heat transfer away from the melter that would occur if standard copper or water-cooled copper connections were used between the supply and the INCONEL 690 heating tubes.

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

1993-01-01T23:59:59.000Z

305

Lid heater for glass melter  

DOE Patents [OSTI]

A glass melter having a lid electrode for heating the glass melt radiantly. The electrode comprises a series of INCONEL 690 tubes running above the melt across the melter interior and through the melter walls and having nickel cores inside the tubes beginning where the tubes leave the melter interior and nickel connectors to connect the tubes electrically in series. An applied voltage causes the tubes to generate heat of electrical resistance for melting frit injected onto the melt. The cores limit heat generated as the current passes through the walls of the melter. Nickel bus connection to the electrical power supply minimizes heat transfer away from the melter that would occur if standard copper or water-cooled copper connections were used between the supply and the INCONEL 690 heating tubes. 3 figures.

Phillips, T.D.

1993-12-14T23:59:59.000Z

306

Sangre De Cristo Electric Association- Energy Efficiency Credit Program  

Broader source: Energy.gov [DOE]

The Sangre De Cristo Electric Association (SDCEA) offers the Energy Efficiency Credit Program, a rebate program which offers incentives for space heaters, water heaters and appliances.

307

THERMAL ENHANCEMENT CARTRIDGE HEATER MODIFIED TECH MOD TRITIUM HYDRIDE BED DEVELOPMENT PART I DESIGN AND FABRICATION  

SciTech Connect (OSTI)

The Savannah River Site (SRS) tritium facilities have used 1{sup st} generation (Gen1) LaNi{sub 4.25}Al{sub 0.75} (LANA0.75) metal hydride storage beds for tritium absorption, storage, and desorption. The Gen1 design utilizes hot and cold nitrogen supplies to thermally cycle these beds. Second and 3{sup rd} generation (Gen2 and Gen3) storage bed designs include heat conducting foam and divider plates to spatially fix the hydride within the bed. For thermal cycling, the Gen2 and Gen 3 beds utilize internal electric heaters and glovebox atmosphere flow over the bed inside the bed external jacket for cooling. The currently installed Gen1 beds require replacement due to tritium aging effects on the LANA0.75 material, and cannot be replaced with Gen2 or Gen3 beds due to different designs of these beds. At the end of service life, Gen1 bed desorption efficiencies are limited by the upper temperature of hot nitrogen supply. To increase end-of-life desorption efficiency, the Gen1 bed design was modified, and a Thermal Enhancement Cartridge Heater Modified (TECH Mod) bed was developed. Internal electric cartridge heaters in the new design to improve end-of-life desorption, and also permit in-bed tritium accountability (IBA) calibration measurements to be made without the use of process tritium. Additional enhancements implemented into the TECH Mod design are also discussed.

Klein, J.; Estochen, E.

2014-03-06T23:59:59.000Z

308

Max Tech Appliance Design: Potential for Maximizing U.S. Energy Savings through Standards  

E-Print Network [OSTI]

potential to do so. Heat pump Water heaters, space Useswater heaters Electric space heaters other than heat pumps

Garbesi, Karina

2011-01-01T23:59:59.000Z

309

QUANTUM WELL THERMOELECTRICS FOR CONVERTING WASTE HEAT TO ELECTRICITY  

SciTech Connect (OSTI)

New thermoelectric materials using Quantum Well (QW) technology are expected to increase the energy conversion efficiency to more than 25% from the present 5%, which will allow for the low cost conversion of waste heat into electricity. Hi-Z Technology, Inc. has been developing QW technology over the past six years. It will use Caterpillar, Inc., a leader in the manufacture of large scale industrial equipment, for verification and life testing of the QW films and modules. Other members of the team are Pacific Northwest National Laboratory, who will sputter large area QW films. The Scope of Work is to develop QW materials from their present proof-of-principle technology status to a pre-production level over a proposed three year period. This work will entail fabricating the QW films through a sputtering process of 50 {micro}m thick multi layered films and depositing them on 12 inch diameter, 5 {micro}m thick Si substrates. The goal in this project is to produce the technology for fabricating a basic 10-20 watt module that can be used to build up any size generator such as: a 5-10 kW Auxiliary Power Unit (APU), a multi kW Waste Heat Recovery Generator (WHRG) for a class 8 truck or as small as a 10-20 watt unit that would fit on a daily used wood fired stove and allow some of the estimated 2-3 billion people on earth, who have no electricity, to recharge batteries (such as a cell phone) or directly power radios, TVs, computers and other low powered devices. In this quarter Hi-Z has continued fabrication of the QW films and also continued development of joining techniques for fabricating the N and P legs into a couple. The upper operating temperature limit for these films is unknown and will be determined via the isothermal aging studies that are in progress. We are reporting on these studies in this report. The properties of the QW films that are being evaluated are Seebeck, thermal conductivity and thermal-to-electricity conversion efficiency.

Saeid Ghamaty

2004-01-01T23:59:59.000Z

310

QUANTUM WELL THERMOELECTRICS FOR CONVERTING WASTE HEAT TO ELECTRICITY  

SciTech Connect (OSTI)

New thermoelectric materials using Quantum Well (QW) technology are expected to increase the energy conversion efficiency to more than 25% from the present 5%, which will allow for the low cost conversion of waste heat into electricity. Hi-Z Technology, Inc. has been developing QW technology over the past six years. It will use Caterpillar, Inc., a leader in the manufacture of large scale industrial equipment, for verification and life testing of the QW films and modules. Other members of the team are Pacific Northwest National Laboratory, who will sputter large area QW films. The Scope of Work is to develop QW materials from their present proof-of-principle technology status to a pre-production level over a proposed three year period. This work will entail fabricating the QW films through a sputtering process of 50 {micro}m thick multi layered films and depositing them on 12 inch diameter, 5 {micro}m thick Si substrates. The goal in this project is to produce the technology for fabricating a basic 10-20 watt module that can be used to build up any size generator such as: a 5-10 kW Auxiliary Power Unit (APU), a multi kW Waste Heat Recovery Generator (WHRG) for a class 8 truck or as small as a 10-20 watt unit that would fit on a daily used wood fired stove and allow some of the estimated 2-3 billion people on earth, who have no electricity, to recharge batteries (such as a cell phone) or directly power radios, TVs, computers and other low powered devices. In this quarter Hi-Z has continued fabrication of the QW films and also continued development of joining techniques for fabricating the N and P legs into a couple. The upper operating temperature limit for these films is unknown and will be determined via the isothermal aging studies that are in progress. We are reporting on these studies in this report. The properties of the QW films that are being evaluated are Seebeck, thermal conductivity and thermal-to-electricity conversion efficiency.

Saeid Ghamaty

2006-02-01T23:59:59.000Z

311

QUANTUM WELL THERMOELECTRICS FOR CONVERTING WASTE HEAT TO ELECTRICITY  

SciTech Connect (OSTI)

New thermoelectric materials using Quantum Well (QW) technology are expected to increase the energy conversion efficiency to more than 25% from the present 5%, which will allow for the low cost conversion of waste heat into electricity. Hi-Z Technology, Inc. has been developing QW technology over the past six years. It will use Caterpillar, Inc., a leader in the manufacture of large scale industrial equipment, for verification and life testing of the QW films and modules. Other members of the team are Pacific Northwest National Laboratory, who will sputter large area QW films. The Scope of Work is to develop QW materials from their present proof-of-principle technology status to a pre-production level over a proposed three year period. This work will entail fabricating the QW films through a sputtering process of 50 {micro}m thick multi layered films and depositing them on 12 inch diameter, 5 {micro}m thick Si substrates. The goal in this project is to produce the technology for fabricating a basic 10-20 watt module that can be used to build up any size generator such as: a 5-10 kW Auxiliary Power Unit (APU), a multi kW Waste Heat Recovery Generator (WHRG) for a class 8 truck or as small as a 10-20 watt unit that would fit on a daily used wood fired stove and allow some of the estimated 2-3 billion people on earth, who have no electricity, to recharge batteries (such as a cell phone) or directly power radios, TVs, computers and other low powered devices. In this quarter Hi-Z has continued fabrication of the QW films and also continued development of joining techniques for fabricating the N and P legs into a couple. The upper operating temperature limit for these films is unknown and will be determined via the isothermal aging studies that are in progress. We are reporting on these studies in this report. The properties of the QW films that are being evaluated are Seebeck, thermal conductivity and thermal-to-electricity conversion efficiency.

Saeid Ghamaty

2006-03-31T23:59:59.000Z

312

QUANTUM WELL THERMOELECTRICS FOR CONVERTING WASTE HEAT TO ELECTRICITY  

SciTech Connect (OSTI)

New thermoelectric materials using Quantum Well (QW) technology are expected to increase the energy conversion efficiency to more than 25% from the present 5%, which will allow for the low cost conversion of waste heat into electricity. Hi-Z Technology, Inc. has been developing QW technology over the past six years. It will use Caterpillar, Inc., a leader in the manufacture of large scale industrial equipment, for verification and life testing of the QW films and modules. Other members of the team are Pacific Northwest National Laboratory, who will sputter large area QW films. The Scope of Work is to develop QW materials from their present proof-of-principle technology status to a pre-production level over a proposed three year period. This work will entail fabricating the QW films through a sputtering process of 50 {micro}m thick multi layered films and depositing them on 12 inch diameter, 5 {micro}m thick Si substrates. The goal in this project is to produce the technology for fabricating a basic 10-20 watt module that can be used to build up any size generator such as: a 5-10 kW Auxiliary Power Unit (APU), a multi kW Waste Heat Recovery Generator (WHRG) for a class 8 truck or as small as a 10-20 watt unit that would fit on a daily used wood fired stove and allow some of the estimated 2-3 billion people on earth, who have no electricity, to recharge batteries (such as a cell phone) or directly power radios, TVs, computers and other low powered devices. In this quarter Hi-Z has continued fabrication of the QW films and also continued development of joining techniques for fabricating the N and P legs into a couple. The upper operating temperature limit for these films is unknown and will be determined via the isothermal aging studies that are in progress. We are reporting on these studies in this report. The properties of the QW films that are being evaluated are Seebeck, thermal conductivity and thermal-to-electricity conversion efficiency.

Saeid Ghamaty

2005-05-01T23:59:59.000Z

313

QUANTUM WELL THERMOELECTRICS FOR CONVERTING WASTE HEAT TO ELECTRICITY  

SciTech Connect (OSTI)

New thermoelectric materials using Quantum Well (QW) technology are expected to increase the energy conversion efficiency to more than 25% from the present 5%, which will allow for the low cost conversion of waste heat into electricity. Hi-Z Technology, Inc. has been developing QW technology over the past six years. It will use Caterpillar, Inc., a leader in the manufacture of large scale industrial equipment, for verification and life testing of the QW films and modules. Other members of the team are Pacific Northwest National Laboratory, who will sputter large area QW films. The Scope of Work is to develop QW materials from their present proof-of-principle technology status to a pre-production level over a proposed three year period. This work will entail fabricating the QW films through a sputtering process of 50 {micro}m thick multi layered films and depositing them on 12 inch diameter, 5 {micro}m thick Si substrates. The goal in this project is to produce the technology for fabricating a basic 10-20 watt module that can be used to build up any size generator such as: a 5-10 kW Auxiliary Power Unit (APU), a multi kW Waste Heat Recovery Generator (WHRG) for a class 8 truck or as small as a 10-20 watt unit that would fit on a daily used wood fired stove and allow some of the estimated 2-3 billion people on earth, who have no electricity, to recharge batteries (such as a cell phone) or directly power radios, TVs, computers and other low powered devices. In this quarter Hi-Z has continued fabrication of the QW films and also continued development of joining techniques for fabricating the N and P legs into a couple. The upper operating temperature limit for these films is unknown and will be determined via the isothermal aging studies that are in progress. We are reporting on these studies in this report. The properties of the QW films that are being evaluated are Seebeck, thermal conductivity and thermal-to-electricity conversion efficiency.

Saeid Ghamaty

2005-07-01T23:59:59.000Z

314

Circulating current battery heater  

DOE Patents [OSTI]

A circuit for heating energy storage devices such as batteries is provided. The circuit includes a pair of switches connected in a half-bridge configuration. Unidirectional current conduction devices are connected in parallel with each switch. A series resonant element for storing energy is connected from the energy storage device to the pair of switches. An energy storage device for intermediate storage of energy is connected in a loop with the series resonant element and one of the switches. The energy storage device which is being heated is connected in a loop with the series resonant element and the other switch. Energy from the heated energy storage device is transferred to the switched network and then recirculated back to the battery. The flow of energy through the battery causes internal power dissipation due to electrical to chemical conversion inefficiencies. The dissipated power causes the internal temperature of the battery to increase. Higher internal temperatures expand the cold temperature operating range and energy capacity utilization of the battery. As disclosed, either fixed frequency or variable frequency modulation schemes may be used to control the network.

Ashtiani, Cyrus N. (West Bloomfield, MI); Stuart, Thomas A. (Toledo, OH)

2001-01-01T23:59:59.000Z

315

Gas Turbine Fired Heater Integration: Achieve Significant Energy Savings  

E-Print Network [OSTI]

GAS TURBINE FIRED HEATER INTEGRATION: ACHIEVE SIGNIFICANT ENERGY SAVINGS G. Iaquaniello**, P. Pietrogrande* *KTI Corp., Research and Development Division, Monrovia, California **KTI SpA, Rome, Italy ABSTRAer Faster payout will result if gas... as in steam turbines. A specific example of how cogeneration can work in this way is in the integration of a gas turbine with a fired heater as shown in Figure 2. Electrical or mechanical power is delivered by the gas turbine while the exhaust combustion...

Iaquaniello, G.; Pietrogrande, P.

316

Peak Demand Reduction with Dual-Source Heat Pumps Using Municipal Water  

E-Print Network [OSTI]

The objective of this project was to examine a dual-source (air and/or water-coupled) heat pump concept which would reduce or eliminate the need for supplemental electrical resistance heating (strip heaters). The project examined two system options...

Morehouse, J. H.; Khan, J. A.; Connor, L. N.; Pal, D.

317

Feedback regulated induction heater for a flowing fluid  

DOE Patents [OSTI]

A regulated induction heater for heating a stream of flowing fluid to a predetermined desired temperature. The heater includes a radiofrequency induction coil which surrounds a glass tube through which the fluid flows. A heating element consisting of a bundle of approximately 200 stainless steel capillary tubes located within the glass tube couples the output of the induction coil to the fluid. The temperature of the fluid downstream from the heating element is sensed with a platinum resistance thermometer, the output of which is applied to an adjustable porportional and integral feedback control circuit which regulates the power applied to the induction coil. The heater regulates the fluid temperature to within 0.005/sup 0/C at a flow rate of 50 cm/sup 3//sec with a response time of less than 0.1 second, and can accommodate changes in heat load up to 1500 watts.

Migliori, A.; Swift, G.W.

1984-06-13T23:59:59.000Z

318

Feedback regulated induction heater for a flowing fluid  

DOE Patents [OSTI]

A regulated induction heater for heating a stream of flowing fluid to a predetermined desired temperature. The heater includes a radiofrequency induction coil which surrounds a glass tube through which the fluid flows. A heating element consisting of a bundle of approximately 200 stainless steel capillary tubes located within the glass tube couples the output of the induction coil to the fluid. The temperature of the fluid downstream from the heating element is sensed with a platinum resistance thermometer, the output of which is applied to an adjustable proportional and integral feedback control circuit which regulates the power applied to the induction coil. The heater regulates the fluid temperature to within 0.005.degree. C. at a flow rate of 50 cm.sup.3 /second with a response time of less than 0.1 second, and can accommodate changes in heat load up to 1500 watts.

Migliori, Albert (Santa Fe, NM); Swift, Gregory W. (Los Alamos, NM)

1985-01-01T23:59:59.000Z

319

FEMP Designated Product Assessment for Commercial Gas Water Heaters  

E-Print Network [OSTI]

the CFR as being storage water heaters, instantaneous watersupply boilers. Storage water heater means a water heaterAppliance Gas storage water heaters Definition a water

Lutz, Jim

2012-01-01T23:59:59.000Z

320

Dixie Electric Cooperative- Residential Heat Pump Loan Program  

Broader source: Energy.gov [DOE]

Dixie Electric Cooperative, a Touchstone Electric Cooperative, offers the Energy Resources Conservation (ERC) loan to residential customers pursue energy efficiency measures. The program allows a...

Note: This page contains sample records for the topic "heaters electric heat" 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

Multiwalled carbon nanotube/polydimethylsiloxane composite films as high performance flexible electric heating elements  

SciTech Connect (OSTI)

High performance elastomeric electric heating elements were prepared by incorporating various contents of pristine multiwalled carbon nanotube (MWCNT) in polydimethylsiloxane (PDMS) matrix by using an efficient solution-casting and curing technique. The pristine MWCNTs were identified to be uniformly dispersed in the PDMS matrix and the electrical percolation of MWCNTs was evaluated to be at ?0.27?wt.?%, where the electrical resistivity of the MWCNT/PDMS composite films dropped remarkably. Accordingly, the composite films with higher MWCNT contents above 0.3?wt.?% exhibit excellent electric heating performance in terms of temperature response rapidity and electric energy efficiency at constant applied voltages. In addition, the composite films, which were thermally stable up to 250?°C, showed excellent heating-cooling cyclic performance, which was associated with operational stability in actual electric heating applications.

Yan, Jing; Jeong, Young Gyu, E-mail: ygjeong@cnu.ac.kr [Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764 (Korea, Republic of)

2014-08-04T23:59:59.000Z

322

The Economics of Steam Vs. Electric Pipe Heating  

E-Print Network [OSTI]

To properly design a pipe heating system, the basic principles of heat transfer from an insulated pipe must be understood. The three methods of heat flow are conduction, convection (both forced and natural) and radiation. The total heat loss from a...

Schilling, R. E.

323

Electricity-producing heating apparatus utilizing a turbine generator in a semi-closed brayton cycle  

DOE Patents [OSTI]

The present invention provides apparatus and methods for producing both heat and electrical energy by burning fuels in a stove or boiler using a novel arrangement of a surface heat exchanger and microturbine-powered generator and novel surface heat exchanger. The equipment is particularly suited for use in rural and relatively undeveloped areas, especially in cold regions and highlands.

Labinov, Solomon D.; Christian, Jeffrey E.

2003-10-07T23:59:59.000Z

324

Solar energy for heat and electricity: the potential for mitigating climate change  

E-Print Network [OSTI]

Solar energy for heat and electricity: the potential for mitigating climate change Dr N.J. Eki that powers the Earth's climate and ecosystem. Harnessing this energy for hot water and electrical power could electricity. solar hot water systems could be used to supply up to 70% of household hot water in the UK

325

Regenerative air heater  

DOE Patents [OSTI]

A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.

Hasselquist, Paul B. (Maple Grove, MN); Baldner, Richard (Minnetonka, MN)

1982-01-01T23:59:59.000Z

326

Regenerative air heater  

DOE Patents [OSTI]

A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expansion of the dome structure despite substantial temperature differential thereby reducing relative movement between the dome bricks. Gas cooling of the steel skirt allows the structure to operate above its normal temperature during clean-out cycles and also allows for the control of the thermal expansion of the steel skirt.

Hasselquist, P.B.; Baldner, R.

1980-11-26T23:59:59.000Z

327

Electrical diesel particulate filter (DPF) regeneration  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine includes a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates from the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates within the exhaust as it passes therethrough. Heat generated by combustion of the particulates induces combustion of particulates within the DPF.

Gonze, Eugene V; Ament, Frank

2013-12-31T23:59:59.000Z

328

INTEGRATED CO2 HEAT PUMP SYSTEMS FOR SPACE HEATING AND HOT WATER HEATING IN LOW-ENERGY HOUSES AND  

E-Print Network [OSTI]

designed as stand-alone systems, i.e. a heat pump water heater (HPWH) in combination with separate units

J. Stene

329

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network [OSTI]

heat pump technologies where applicable models exist (electric water heaters,Heat Pumps for AC Electric Clothes Dryers Electric Secondary Space Heaters Dishwashers Electric Water Heaters (

Garbesi, Karina

2012-01-01T23:59:59.000Z

330

MEAN MONTHLY PERFORMANCE OF PASSIVE SOLAR HEATERS  

E-Print Network [OSTI]

OF PASSIVE SOLAR WATER HEATERS W. Place, M. Daneshyar. andOF PASSIVE SOLAR WATER HEATERS* We Place, M. Daneshyar, tWarm Water Standard Water Heater Tank Hot Water The solar

Place, W.

2011-01-01T23:59:59.000Z

331

Do You Have a Solar Water Heater?  

Broader source: Energy.gov [DOE]

Earlier this week, Ernie wrote about the economics of getting a solar water heater. As Ernie explained, a solar water heater is more expensive than a normal water heater, but depending on your area...

332

District heating from electric-generating plants and municipal incinerators: local planner's assessment guide  

SciTech Connect (OSTI)

This guide is designed to aid local government planners in the preliminary evaluation of the feasibility of district heating using heat recovered from electric generating plants and municipal incinerators. System feasibility is indicated by: (1) the existence of an adequate supply of nearby waste heat, (2) the presence of a sufficiently dense and large thermal load, and (3) a favorable cost comparison with conventional heating methods. 34 references.

Pferdehirt, W.; Kron, N. Jr.

1980-11-01T23:59:59.000Z

333

High Efficiency, Ultra-Low Emission, Integrated Process Heater System  

SciTech Connect (OSTI)

The team of TIAX LLC, ExxonMobil Research and Engineering Company, and Callidus Technologies, LLC conducted a six-year program to develop an ultra-low emission process heater burner and an advanced high efficiency heater design. This project addresses the critical need of process heater operators for reliable, economical emission reduction technologies to comply with stringent emission regulations, and for heater design alternatives that reduce process heater energy requirements without significant cost increase. The key project targets were NOx emissions of 10 ppm (@ 3% O2), and a heater thermal efficiency of 95 percent. The ultra low NOx burner was developed through a series of pilot-scale and field tests combined with computational fluid dynamic modeling to arrive at simultaneous low emissions and suitable flame shape and stability. Pilot scale tests were run at TIAX, at the 2 MMBtu/hr scale, and at Callidus at 8 MMBtu/hr. The full scale burner was installed on a 14 burner atmospheric pipestill furnace at an ExxonMobil refinery. A variety of burner configurations, gas tips and flame stabilizers were tested to determine the lowest emissions with acceptable flame shape and stability. The resulting NOx emissions were 22 ppm on average. Starting in 2001, Callidus commercialized the original ultra low NOx burner and made subsequent design improvements in a series of commercial burners evolving from the original concept and/or development. Emissions in the field with the ultra low-NOx burner over a broad spectrum of heater applications have varied from 5 ppm to 30 ppm depending on heater geometry, heater service, fuel and firing capacity. To date, 1550 of the original burners, and 2500 of subsequent generation burners have been sold by Callidus. The advanced heater design was developed by parametric evaluations of a variety of furnace and combustion air preheater configurations and technologies for enhancing convective and radiative heat transfer. The design evolution relied heavily on computational fluid dynamic predictions of design alternatives. The final design features modular separate radiant cells, each with one and two-side fired vertical tubes. The convection section configuration is vertical tube banks enclosed in the radiant channels. Commercial modular plate air preheaters are used. The predicted performance for the integrated advanced heater and Callidus burner is 95 percent efficiency with 9 ppm NOx emissions firing natural gas, and 12 ppm firing refinery gas. The total erected cost is less than a conventional heater with combustion air preheat.

Mason, Howard; Boral, Anindya; Chhotray, San; Martin, Matthew

2006-06-19T23:59:59.000Z

334

Impacts of Water Quality on Residential Water Heating Equipment  

SciTech Connect (OSTI)

Water heating is a ubiquitous energy use in all residential housing, accounting for 17.7% of residential energy use (EIA 2012). Today, there are many efficient water heating options available for every fuel type, from electric and gas to more unconventional fuel types like propane, solar, and fuel oil. Which water heating option is the best choice for a given household will depend on a number of factors, including average daily hot water use (total gallons per day), hot water draw patterns (close together or spread out), the hot water distribution system (compact or distributed), installation constraints (such as space, electrical service, or venting accommodations) and fuel-type availability and cost. While in general more efficient water heaters are more expensive than conventional water heating technologies, the savings in energy use and, thus, utility bills can recoup the additional upfront investment and make an efficient water heater a good investment over time in most situations, although the specific payback period for a given installation will vary widely. However, the expected lifetime of a water heater in a given installation can dramatically influence the cost effectiveness and savings potential of a water heater and should be considered, along with water use characteristics, fuel availability and cost, and specific home characteristics when selecting the optimum water heating equipment for a particular installation. This report provides recommendations for selecting and maintaining water heating equipment based on local water quality characteristics.

Widder, Sarah H.; Baechler, Michael C.

2013-11-01T23:59:59.000Z

335

Advanced Hybrid Water Heater using Electrochemical Compressor...  

Energy Savers [EERE]

Advanced Hybrid Water Heater using Electrochemical Compressor Advanced Hybrid Water Heater using Electrochemical Compressor Xergy is using its Electro Chemical Compression (ECC)...

336

Arnold Schwarzenegger WATER HEATERS AND HOT WATER  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor WATER HEATERS AND HOT WATER DISTRIBUTION SYSTEMS: Lutz J.D. (Lawrence Berkeley National Laboratory). 2008. Water Heaters and Hot Water Distribution

337

Numerical investigation of electric heating impacts on solid/liquid glass flow patterns.  

SciTech Connect (OSTI)

A typical glass furnace consists of a combustion space and a melter. Intense heat is generated from the combustion of fuel and air/oxygen in the combustion space. This heat is transferred mainly by radiation to the melter in order to melt sand and cullet (scrap glass) eventually creating glass products. Many furnaces use electric boosters to enhance glass melting and increase productivity. The coupled electric/combustion heat transfer patterns are key to the glass making processes. The understanding of the processes can lead to the improvement of glass quality and furnace efficiency. The effects of electrical boosting on the flow patterns and heat transfer in a glass melter are investigated using a multiphase Computational Fluid Dynamics (CFD) code with addition of an electrical boosting model. The results indicate that the locations and spacing of the electrodes have large impacts on the velocity and temperature distributions in the glass melter. With the same total heat input, the batch shape (which is determined by the overall heat transfer and the batch melting rate) is kept almost the same. This indicates that electric boosting can be used to replace part of heat by combustion. Therefore, temperature is lower in the combustion space and the life of the furnace can be prolonged. The electric booster can also be used to increase productivity without increasing the furnace size.

Chang, S. L.; Zhou, C. Q.; Golchert, B.

2002-07-02T23:59:59.000Z

338

Bangor Hydro Electric Company- Residential and Small Commercial Heat Pump Program (Maine)  

Broader source: Energy.gov [DOE]

Bangor Hydro Electric Company offers a two-tiered incentive program for residential and small commercial customers. Mini-Split Heat Pumps are eligible for a rebate of $600, as well as a loan to...

339

Novel Direct Steelmaking by Combining Microwave, Electric Arc, and Exothermal Heating Technologies  

Broader source: Energy.gov [DOE]

This factsheet describes a project to develop direct steelmaking through the combination of microwave, electric arc, and exothermal heating, a process which is meant to eliminate traditional, intermediate steelmaking steps.

340

Low exhaust temperature electrically heated particulate matter filter system  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter, a sensor, a heating element, and a control module. The PM filter includes with an upstream end that receives exhaust gas, a downstream end and multiple zones. The sensor detects a temperature of the exhaust gas. The control module controls current to the heating element to convection heat one of the zones and initiate a regeneration process. The control module selectively increases current to the heating element relative to a reference regeneration current level when the temperature is less than a predetermined temperature.

Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI); Bhatia, Garima (Bangalore, IN)

2012-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Flathead Electric Cooperative Facility Geothermal Heat Pump System...  

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

Cooperative is uniquely positioned to provide marketing of ground source heat pump systems * 15' Static Water Level * Low Pumping Power * Reduced Installation Costs * Good...

342

Evaluation of Heat Stress and Strain in Electric Utility Workers  

E-Print Network [OSTI]

exposures in electric utility line workers during work intwo broad classes: utility line workers/meter technicians3 different samples: utility line workers/meter technicians,

Brown, Eric Nicholas

2013-01-01T23:59:59.000Z

343

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

SciTech Connect (OSTI)

Residential water heating is a large source of energy use in California homes. This project took a life cycle approach to comparing tank and tankless water heaters in Northern and Southern California. Information about the life cycle phases was calculated using the European Union?s Methodology study for EcoDesign of Energy-using Products (MEEUP) and the National Renewable Energy Laboratory?s Life Cycle Inventory (NREL LCI) database. In a unit-to-unit comparison, it was found that tankless water heaters would lessen impacts of water heating by reducing annual energy use by 2800 MJ/year (16% compared to tank), and reducing global warming emissions by 175 kg CO2 eqv./year (18% reduction). Overall, the production and combustion of natural gas in the use phase had the largest impact. Total waste, VOCs, PAHs, particulate matter, and heavy-metals-to-air categories were also affected relatively strongly by manufacturing processes. It was estimated that tankless water heater users would have to use 10 more gallons of hot water a day (an increased usage of approximately 20%) to have the same impact as tank water heaters. The project results suggest that if a higher percentage of Californians used tankless water heaters, environmental impacts caused by water heating would be smaller.

Lu, Alison; McMahon, James; Masanet, Eric; Lutz, Jim

2008-08-13T23:59:59.000Z

344

Nuclear Plant Feedwater Heater Handbook. Volume 2. Design and procurement guidelines. Final report  

SciTech Connect (OSTI)

This document is the second part of a three volume handbook covering closed feedwater heaters for nuclear electric power generating plants. This second volume covers the engineering, design, specification, bid, procurement, fabrication, installation and commissioning of the heater. 22 refs., 12 figs., 17 tabs.

Bell, R.J.; Wells, T.G. Jr.

1985-06-01T23:59:59.000Z

345

DETAILED LOOP MODEL (DLM) ANALYSIS OF LIQUID SOLAR THERMOSIPHONS WITH HEAT EXCHANGERS  

E-Print Network [OSTI]

a Collector- Cum-Storage Type of ar Water Heater, 11 SolarSolar Water Heater of the Combined Collector and Storagethermosiphon water heaters with heat exchangers in storage

Mertol, A.

2013-01-01T23:59:59.000Z

346

UBC Social Ecological Economic Development Studies (SEEDS) Student Report Drain Water Heat Recovery  

E-Print Network [OSTI]

household, the NPV of DWHR is -$203.68 for homes with electric water heaters and -$464.88 for homes with natural gas water heaters. DWHR is much more economical for households with electric hot water heaters as their energy costs are much higher. A household of 4 or more people with an electric hot water heater would

347

Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology  

SciTech Connect (OSTI)

Caterpillar's Technology & Solutions Division conceived, designed, built and tested an electric turbocompound system for an on-highway heavy-duty truck engine. The heart of the system is a unique turbochargerr with an electric motor/generator mounted on the shaft between turbine and compressor wheels. When the power produced by the turbocharger turbine exceeds the power of the compressor, the excess power is converted to electrical power by the generator on the turbo shaft; that power is then used to help turn the crankshaft via an electric motor mounted in the engine flywheel housing. The net result is an improvement in engine fuel economy. The electric turbocompound system provides added control flexibility because it is capable of varying the amount of power extracted from the exhaust gases, thus allowing for control of engine boost. The system configuration and design, turbocharger features, control system development, and test results are presented.

Hopman, Ulrich,; Kruiswyk, Richard W.

2005-07-05T23:59:59.000Z

348

Waste Heat Recovery from High Temperature Off-Gases from Electric Arc Furnace  

SciTech Connect (OSTI)

This article presents a study and review of available waste heat in high temperature Electric Arc Furnace (EAF) off gases and heat recovery techniques/methods from these gases. It gives details of the quality and quantity of the sensible and chemical waste heat in typical EAF off gases, energy savings potential by recovering part of this heat, a comprehensive review of currently used waste heat recovery methods and potential for use of advanced designs to achieve a much higher level of heat recovery including scrap preheating, steam production and electric power generation. Based on our preliminary analysis, currently, for all electric arc furnaces used in the US steel industry, the energy savings potential is equivalent to approximately 31 trillion Btu per year or 32.7 peta Joules per year (approximately $182 million US dollars/year). This article describes the EAF off-gas enthalpy model developed at Oak Ridge National Laboratory (ORNL) to calculate available and recoverable heat energy for a given stream of exhaust gases coming out of one or multiple EAF furnaces. This Excel based model calculates sensible and chemical enthalpy of the EAF off-gases during tap to tap time accounting for variation in quantity and quality of off gases. The model can be used to estimate energy saved through scrap preheating and other possible uses such as steam generation and electric power generation using off gas waste heat. This article includes a review of the historical development of existing waste heat recovery methods, their operations, and advantages/limitations of these methods. This paper also describes a program to develop and test advanced concepts for scrap preheating, steam production and electricity generation through use of waste heat recovery from the chemical and sensible heat contained in the EAF off gases with addition of minimum amount of dilution or cooling air upstream of pollution control equipment such as bag houses.

Nimbalkar, Sachin U [ORNL; Thekdi, Arvind [E3M Inc; Keiser, James R [ORNL; Storey, John Morse [ORNL

2014-01-01T23:59:59.000Z

349

DPF heater attachment mechanisms  

DOE Patents [OSTI]

An exhaust filter system includes a particulate filter (PF) that is disposed downstream from an engine. The PF filters particulates within an exhaust from the engine. A heating element heats particulate matter in the PF. A fastener limits expansion movement of the heating element relative to the PF.

Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

2011-04-26T23:59:59.000Z

350

DSM Electricity Savings Potential in the Buildings Sector in APP Countries  

E-Print Network [OSTI]

Peak Saver Program: Home heating/cooling system purchase/heaters Direct heating equipment Mobile home furnaces Medium

McNeil, MIchael

2011-01-01T23:59:59.000Z

351

Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade  

SciTech Connect (OSTI)

High initial cost and lack of public awareness of ground source heat pump (GSHP) technology are the two major barriers preventing rapid deployment of this energy saving technology in the United States. Under the American Recovery and Reinvestment Act (ARRA), 26 GSHP projects have been competitively selected and carried out to demonstrate the benefits of GSHP systems and innovative technologies for cost reduction and/or performance improvement. This paper highlights findings of a case study of one of the ARRA-funded GSHP demonstration projects, which is a heating only central GSHP system using shallow aquifer as heat source and installed at a warehouse and truck bay at Kalispell, MT. This case study is based on the analysis of measured performance data, utility bills, and calculations of energy consumptions of conventional central heating systems for providing the same heat outputs as the central GSHP system did. The evaluated performance metrics include energy efficiency of the heat pump equipment and the overall GSHP system, pumping performance, energy savings, carbon emission reductions, and cost-effectiveness of GSHP system compared with conventional heating systems. This case study also identified areas for reducing uncertainties in performance evaluation, improving operational efficiency, and reducing installed cost of similar GSHP systems in the future. Publication of ASHRAE at the annual conference in Seattle.

Liu, Xiaobing [Oak Ridge National Lab] [Oak Ridge National Lab

2014-06-01T23:59:59.000Z

352

Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology  

SciTech Connect (OSTI)

This cooperative program between the DOE Office of Heavy Vehicle Technology and Caterpillar, Inc. is aimed at demonstrating electric turbocompound technology on a Class 8 truck engine. This is a lab demonstration program, with no provision for on-truck testing of the system. The goal is to demonstrate the level of fuel efficiency improvement attainable with the electric turbocompound system. Also, electric turbocompounding adds an additional level of control to the air supply which could be a component in an emissions control strategy.

Gerke, Frank G.

2001-08-05T23:59:59.000Z

353

Effect of Heat and Electricity Storage and Reliability on Microgrid Viability: A Study of Commercial Buildings in California and New York States  

E-Print Network [OSTI]

ES 2. CA nursing home electricity pattern: July weekday lowJanuary and July weekday electricity and total heat (space +CA school weekday total electricity (inclusive of cooling)

Stadler, Michael

2009-01-01T23:59:59.000Z

354

Heater head for stirling engine  

DOE Patents [OSTI]

A monolithic heater head assembly which augments cast fins with ceramic inserts which narrow the flow of combustion gas and obtains high thermal effectiveness with the assembly including an improved flange design which gives greater durability and reduced conduction loss.

Corey, John A. (R.D. #2, Box 101 E, North Troy, NY 12182)

1985-07-09T23:59:59.000Z

355

Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater  

DOE Patents [OSTI]

A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and electrical resistance heating to heat the contaminated underground area to increase the vapor pressure of the contaminants, thus speeding the process of contaminant removal and making the removal more complete. The injected steam passes through the more permeable sediments, distilling the organic contaminants, which are pumped to the surface. Large electrical currents are also applied to the contaminated area, which heat the impermeable subsurface layers that the steam has not penetrated. The condensed and vaporized contaminants are withdrawn by liquid pumping and vacuum extraction. The steam injection and electrical heating steps are repeated as necessary. Geophysical imaging methods can be used to map the boundary between the hot, dry, contamination-free underground zone and the cool, damp surrounding areas to help monitor the dynamic stripping process. 4 figs.

Daily, W.D.; Ramirez, A.L.; Newmark, R.L.; Udell, K.; Buetnner, H.M.; Aines, R.D.

1995-09-12T23:59:59.000Z

356

Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater  

DOE Patents [OSTI]

A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and electrical resistance heating to heat the contaminated underground area to increase the vapor pressure of the contaminants, thus speeding the process of contaminant removal and making the removal more complete. The injected steam passes through the more permeable sediments, distilling the organic contaminants, which are pumped to the surface. Large electrical currents are also applied to the contaminated area, which heat the impermeable subsurface layers that the steam has not penetrated. The condensed and vaporized contaminants are withdrawn by liquid pumping and vacuum extraction. The steam injection and electrical heating steps are repeated as necessary. Geophysical imaging methods can be used to map the boundary between the hot, dry, contamination-free underground zone and the cool, damp surrounding areas to help monitor the dynamic stripping process.

Daily, William D. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Newmark, Robin L. (Pleasanton, CA); Udell, Kent (Berkeley, CA); Buetnner, Harley M. (Livermore, CA); Aines, Roger D. (Livermore, CA)

1995-01-01T23:59:59.000Z

357

PowerChoice Residential Customer Response to TOU Rates  

E-Print Network [OSTI]

Gas Furnace Heat Pump Gas Water heater Electric Water heaterHeat Pump Electric Heating as Main Heating Equipment Electric Water HeaterA/C, water heater, heat, pool/spa haters/pumps smaller

Peters, Jane S.

2010-01-01T23:59:59.000Z

358

Solar Water Heater Rebate  

Broader source: Energy.gov [DOE]

Hawaii Energy, a third-party administered public benefits fund, provides incentives for energy efficiency and conservation to customers of the Hawaiian Electric Company (HECO) and its subsidiaries,...

359

ELECTRIC CO-HEATING: A METHOD FOR EVALUATING SEASONAL HEATING EFFICIENCIES AND HEAT LOSS RATES IN DWELLINGS  

E-Print Network [OSTI]

and heating efficiency, inexpensive and practical diagnosti.c techniques are needed, such as pressuriza- tion, infrared

Modera, M.P.

2012-01-01T23:59:59.000Z

360

Estimating Costs and Efficiency of Storage, Demand, and Heat...  

Energy Savers [EERE]

the stored water compared to the heat content of the water (water heaters with storage tanks) Cycling losses - the loss of heat as the water circulates through a water heater...

Note: This page contains sample records for the topic "heaters electric heat" 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

Drain-Water Heat Recovery | Department of Energy  

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

works well with all types of water heaters, especially with demand and solar water heaters. Drain-water heat exchangers can recover heat from the hot water used in showers,...

362

Electrically Heated High Temperature Incineration of Air Toxics  

E-Print Network [OSTI]

Inert material heated by alectrical energy to a tempera ture range up to 2000 Fahrenheit. The reaction of organic vapors and oxygen In the bed Is exothermic, thereby reducing the power Input JOHN B. ~ILCOX, PH.D. VICE PRESIDENT IN...

Agardy, F. J.; Wilcox, J. B.

363

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network [OSTI]

The Condensers . Reboiler . . . . Boiler Feed Water Heater.COLUMN EFFECT OF ELIMINATING BOILER FEEDWATER PREHEAT EFFECTThese units preheat boiler feedwater. also preheat low-

Dayan, J.

2011-01-01T23:59:59.000Z

364

Tankless Gas Water Heater Performance - Building America Top...  

Energy Savers [EERE]

Tankless Gas Water Heater Performance - Building America Top Innovation Tankless Gas Water Heater Performance - Building America Top Innovation This photo shows a hot water heater...

365

Assessment of the possibilities of electricity and heat co-generation from biomass in Romania's case  

SciTech Connect (OSTI)

This paper examines the use of biomass for electricity (and heat) production. The objectives of the works developed by RENEL--GSCI were to determine the Romanian potential biomass resources available in economic conditions for electricity production from biomass, to review the routes and the available equipment for power generation from biomass, to carry out a techno-economic assessment of different systems for electricity production from biomass, to identify the most suitable system for electricity and heat cogeneration from biomass, to carry out a detailed techno-economic assessment of the selected system, to perform an environmental impact assessment of the selected system and to propose a demonstration project. RENEL--GSCI (former ICEMENERG) has carried out an assessment concerning Romania's biomass potential taking into account the forestry and wood processing wastes (in the near term) and agricultural wastes (in mid term) as well as managing plantations (in the long term). Comparative techno-economical evaluation of biomass based systems for decentralized power generation was made. The cost analysis of electricity produced from biomass has indicated that the system based on boiler and steam turbine of 2,000 kW running on wood-wastes is the most economical. A location for a demonstration project with low cost financing possibilities and maximum benefits was searched. To mitigate the electricity cost it was necessary to find a location in which the fuel price is quite low, so that the low yield of small installation can be balanced. In order to demonstrate the performances of a system which uses biomass for electricity and heat generation, a pulp and paper mill which needed electricity and heat, and, had large amount of wood wastes from industrial process was found as the most suitable location. A technical and economical analysis for 8 systems for electricity production from bark and wood waste was performed.

Matei, M.

1998-07-01T23:59:59.000Z

366

The stimulation of heavy oil reservoirs with electrical resistance heating  

E-Print Network [OSTI]

. Equations for r? and P, were written using regression analysis. The calculation procedure is as follows: (1) calculate r?, (2) calculate the skin factor, s??, (3) calculate the heated oil production rate, q, ?, and (4) calculate the downhole power... of various heavy oils at 113 'F Fig. 23 ? Effect of CH, on the viscosity of various heavy oils at 171 'F Fig. 24 - Viscosity/pressure relationship for the recombined field sample Fig. 25 ? Smoothed viscosity/pressure relationship for the recombined...

Baylor, Blake Allen

1990-01-01T23:59:59.000Z

367

Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMPRelated PathStrategy

368

Dehumidifying water heater  

SciTech Connect (OSTI)

Drawings and specifications are included for the system to heat water for the swimming pool and dehumidify the building of the Glen Cove YMCA. An overview is presented of the Nautica product used in this system. (MHR)

Not Available

1992-08-18T23:59:59.000Z

369

Thermal characterization of submicron polyacrylonitrile fibers based on optical heating and electrical thermal sensing  

SciTech Connect (OSTI)

In this work, the thermal diffusivity of single submicron ({approx}800 nm) polyacrylonitrile (PAN) fibers is characterized using the recently developed optical heating and electrical thermal sensing technique. In the experiment, a thin Au film (approximately in the nanometer range) is coated on the surface of nonconductive PAN fibers. A periodically modulated laser beam is used to irradiate suspended individual fibers to achieve noncontact periodical heating. The periodical temperature response of the sample is monitored by measuring the electrical resistance variation of the thin Au coating. The experimental results for three different synthesized PAN fibers with varying Au coating thickness are presented and discussed.

Hou Jinbo; Wang Xinwei; Zhang Lijun [Department of Mechanical Engineering, N104 Walter Scott Engineering Center, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0656 (United States)

2006-10-09T23:59:59.000Z

370

Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMPRelated PathStrategy |inGrowth

371

Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent CompanyaUSAMPRelated PathStrategy |inGrowthTechnology

372

Heat Pump Water Heaters | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietip sheetK-4In 2013 many autoThisTheDecember 29, 2014Standardized

373

CO2 Heat Pump Water Heater  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd:June 2015 <Ones |Laboratory, June 2011TO0CNG and3, 2015CO2CO

374

Heat Pump Water Heater Performance in  

Broader source: Energy.gov [DOE]

This presentation was delivered at the U.S. Department of Energy Building America Technical Update meeting on April 29-30, 2013, in Denver, Colorado.

375

Tankless or Demand-Type Water Heaters | Department of Energy  

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

Tankless or Demand-Type Water Heaters Tankless or Demand-Type Water Heaters May 2, 2012 - 6:47pm Addthis Diagram of a tankless water heater. Diagram of a tankless water heater. How...

376

Clean heat, steam, and electricity from rice hull gasification  

SciTech Connect (OSTI)

PRM Energy Systems, Inc., (PRME) has completed the installation of a 330 ton/day biomass gasification system for Cargill Rice Milling of Greenville, Mississippi. The system was activated on November 1, 1995. Using the information and experience gained from the operation of previous installations, PRME scaled up its already proven technology by a factor of four and designed the model KC-218 to meet the needs of this particular facility. The PRME model KC-218 system converts unground rice hulls/straw and other biomass fuels to combustible gas which is burned in the boiler furnace delivering 115 million Btus/hr to an existing boiler/power island 5.0 MW of electricity and 15,000 pounds per hour of process steam for this rice parboiling facility.

Bailey, R.W.; Bailey, R. Jr. [PRM Energy Systems, Inc., Hot Springs, AR (United States)

1996-12-31T23:59:59.000Z

377

Electrical heating of soils using high efficiency electrode patterns and power phases  

DOE Patents [OSTI]

Powerline-frequency electrical (joule) heating of soils using a high efficiency electrode configuration and power phase arrangement. The electrode configuration consists of several heating or current injection electrodes around the periphery of a volume of soil to be heated, all electrodes being connected to one phase of a multi-phase or a single-phase power system, and a return or extraction electrode or electrodes located inside the volume to be heated being connected to the remaining phases of the multi-phase power system or to the neutral side of the single-phase power source. This electrode configuration and power phase arrangement can be utilized anywhere where powerline frequency soil heating is applicable and thus has many potential uses including removal of volatile organic compounds such as gasoline and tricholorethylene (TCE) from contaminated areas.

Buettner, Harley M. (Livermore, CA)

1999-01-01T23:59:59.000Z

378

Assessing Consumer Values and the Supply-Chain Market for the Integrated Water Heater/Dehumidifier  

SciTech Connect (OSTI)

This paper presents a case study of the potential market for the dual-service residential integrated water heater/dehumidifier (WHD). Its principal purpose is to evaluate the extent to which this integrated appliance might penetrate the residential market sector, given current market trends, producer and consumer attributes, and technical parameters. The report's secondary purpose is to gather background information leading to a generic framework for conducting market analyses of technologies. This framework can be used to assess market readiness as well as factor preferred product attributes into the design to drive consumer demand for this product. This study also supports analysis for prototype design. A full market analysis for potential commercialization should be conducted after prototype development. The integrated WHD is essentially a heat-pump water heater (HPWH) with components and controls that allow dedicated dehumidification. Adequate residential humidity control is a growing issue for newly constructed residential homes, which are insulated so well that mechanical ventilation may be necessary to meet fresh air requirements. Leveraging its successful experience with the energy-efficient design improvement for the residential HPWH, the Oak Ridge National Laboratory's (ORNL's) Engineering Science and Technology Division's (ESTD's) Building Equipment Group designed a water-heating appliance that combines HPWH efficiency with dedicated dehumidification. This integrated appliance could be a low-cost solution for dehumidification and efficient electric water heating. ORNL is partnering with Western Carolina University, Asheville-Buncombe Technical Community College, American Carolina Stamping Company, and Clemson University to develop this appliance and assess its market potential. For practical purposes, consumers are indifferent to how water is heated but are very interested in product attributes such as initial first cost, operating cost, performance, serviceability, product size, and installation costs. The principal drivers for penetrating markets are demonstrating reliability, leveraging the dehumidification attributes of the integrated WHD, and creating programs that embrace first-cost and life-cycle cost principles.

Ashdown, BG

2005-01-11T23:59:59.000Z

379

Water Heaters (Storage Electric) | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment of Energy While dryWashington'sResultsEnergyEfficiencyTheThe

380

Combined Heat and Power (CHP), also known as cogeneration, is the concurrent production of electricity or  

E-Print Network [OSTI]

movers or technology types, which include: Reciprocating Engines Combustion or Gas Turbines Steam systems can provide the following products: Electricity Direct mechanical drive Steam or hot water, integrated systems that consist of various components ranging from prime mover (heat engine), generator

Note: This page contains sample records for the topic "heaters electric heat" 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

HeatProbe: A Thermal-based Power Meter for Accounting Disaggregated Electricity Usage  

E-Print Network [OSTI]

HeatProbe: A Thermal-based Power Meter for Accounting Disaggregated Electricity Usage Bo-Jhang Ho1 Technology Innovation, Academia Sinica 128, Sec. 2, Academia Rd., Taipei 115, Taiwan {cwyou, mschen}@citi.sinica.edu.tw ABSTRACT To promote energy-saving behavior, disaggregating elec- tricity usage is critical for increasing

Ouhyoung, Ming

382

Calculating Fired Heater Efficiency  

E-Print Network [OSTI]

bills. A review of the Heat Loss and Input/Output methods of efficiency analyses is presented, along with a discussion of their relative accuracy. Examples cited include refinery mixed fuel gas, coal, and chemical recovery fueled applications, using.... 75 percent excess 02 (dry basis) -- a respectable operation. Eva luate boi ler effieiency when burning mixed refinery gas (at an oil refinery), coa1 (at a central power station) and black liquor (at a paper mill). The practical definition of LHV...

Harriz, J. T.; Ritter, E. L.

383

Convective heat flow probe  

DOE Patents [OSTI]

A convective heat flow probe device is provided which measures heat flow and fluid flow magnitude in the formation surrounding a borehole. The probe comprises an elongate housing adapted to be lowered down into the borehole; a plurality of heaters extending along the probe for heating the formation surrounding the borehole; a plurality of temperature sensors arranged around the periphery of the probe for measuring the temperature of the surrounding formation after heating thereof by the heater elements. The temperature sensors and heater elements are mounted in a plurality of separate heater pads which are supported by the housing and which are adapted to be radially expanded into firm engagement with the walls of the borehole. The heat supplied by the heater elements and the temperatures measured by the temperature sensors are monitored and used in providing the desired measurements. The outer peripheral surfaces of the heater pads are configured as segments of a cylinder and form a full cylinder when taken together. A plurality of temperature sensors are located on each pad so as to extend along the length and across the width thereof, with a heating element being located in each pad beneath the temperature sensors. An expansion mechanism driven by a clamping motor provides expansion and retraction of the heater pads and expandable packet-type seals are provided along the probe above and below the heater pads.

Dunn, J.C.; Hardee, H.C.; Striker, R.P.

1984-01-09T23:59:59.000Z

384

A Steam Quality Comparison between Nanoshell-Mediated Solar Heating and Conventional Electrical Heating  

E-Print Network [OSTI]

GP-B-13 A Steam Quality Comparison between Nanoshell-Mediated Solar Heating in the Halas Group has led to the development of a novel, solar- based steam generation method using broadband. This a dramatic and highly non-equilibrium process. As such, investigating the properties of this steam

385

Highly-Efficient Thermoelectronic Conversion of Solar Energy and Heat into Electric Power  

E-Print Network [OSTI]

Electric power may, in principle, be generated in a highly efficient manner from heat created by focused solar irradiation, chemical combustion, or nuclear decay by means of thermionic energy conversion. As the conversion efficiency of the thermionic process tends to be degraded by electron space charges, the efficiencies of thermionic generators have amounted to only a fraction of those fundamentally possible. We show that this space-charge problem can be resolved by shaping the electric potential distribution of the converter such that the static electron space-charge clouds are transformed into an output current. Although the technical development of practical generators will require further substantial efforts, we conclude that a highly efficient transformation of heat to electric power may well be achieved.

Meir, S; Geballe, T H; Mannhart, J

2013-01-01T23:59:59.000Z

386

Heat engine and electric motor torque distribution strategy for a hybrid electric vehicle  

DOE Patents [OSTI]

A method is provided for controlling a power train system for a hybrid electric vehicle. The method includes a torque distribution strategy for controlling the engine and the electric motor. The engine and motor commands are determined based upon the accelerator position, the battery state of charge and the amount of engine and motor torque available. The amount of torque requested for the engine is restricted by a limited rate of rise in order to reduce the emissions from the engine. The limited engine torque is supplemented by motor torque in order to meet a torque request determined based upon the accelerator position.

Boberg, Evan S. (Hazel Park, MI); Gebby, Brian P. (Hazel Park, MI)

1999-09-28T23:59:59.000Z

387

Improving Fired Heater Efficiency  

E-Print Network [OSTI]

gravity, mass energy or volumetric energy can be obtained from AGA Reports #3 and #5. The equations are: energYmass = 20350 + 1970/G ? (H 2 /inert corrections) energYvolumetric = 1571.5G + 144 ? (H2/inert corrections) Where: G specific gravity... 604 ESL-IE-83-04-96 Proceedings from the Fifth Industrial Energy Technology Conference Volume II, Houston, TX, April 17-20, 1983 energYmass = Htu/lb fhese main equations illustrate that when the H.H.V. (high heating value) of a gas can be energ...

Shriver, J. E.

1983-01-01T23:59:59.000Z

388

Economics of residential gas furnaces and water heaters in United States new construction market  

SciTech Connect (OSTI)

New single-family home construction represents a significant and important market for the introduction of energy-efficient gas-fired space heating and water-heating equipment. In the new construction market, the choice of furnace and water-heater type is primarily driven by first cost considerations and the availability of power vent and condensing water heaters. Few analysis have been performed to assess the economic impacts of the different combinations of space and water-heating equipment. Thus, equipment is often installed without taking into consideration the potential economic and energy savings of installing space and water-heating equipment combinations. In this study, we use a life-cycle cost analysis that accounts for uncertainty and variability of the analysis inputs to assess the economic benefits of gas furnace and water-heater design combinations. This study accounts not only for the equipment cost but also for the cost of installing, maintaining, repairing, and operating the equipment over its lifetime. Overall, this study, which is focused on US single-family new construction households that install gas furnaces and storage water heaters, finds that installing a condensing or power-vent water heater together with condensing furnace is the most cost-effective option for the majority of these houses. Furthermore, the findings suggest that the new construction residential market could be a target market for the large-scale introduction of a combination of condensing or power-vent water heaters with condensing furnaces.

Lekov, Alex B.; Franco, Victor H.; Wong-Parodi, Gabrielle; McMahon, James E.; Chan, Peter

2009-05-06T23:59:59.000Z

389

Sandia National Laboratories: Heat Exchanger Development  

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

LabHeat Exchanger Development Heat Exchanger Development Planned Heat Exchanger Test Loop Capabilities Heat Exchanger 1 500 kW Heaters (Elec.) 500 kW Gas Cooler Unbalanced flows...

390

Indoor Air Quality in 24 California Residences Designed as High Performance Green Homes  

E-Print Network [OSTI]

second the output of heat pump water heaters cannot servicewith tankless water heaters, gas boilers, and heat pumps inspace heater – § J Heat Pump Baseboard electric Hot water

Less, Brennan

2012-01-01T23:59:59.000Z

391

Modeling, Analysis, and Control of Demand Response Resources  

E-Print Network [OSTI]

Capacity Central AC Heat pumps Water heaters Refrigeratorsas air conditioners, heat pumps, electric water heaters, andMerced). ACs Heat Pumps Combined Water Heaters Refrigerators

Mathieu, Johanna L.

2013-01-01T23:59:59.000Z

392

Modeling, Analysis, and Control of Demand Response Resources  

E-Print Network [OSTI]

Capacity Central AC Heat pumps Water heaters Refrigeratorsas air conditioners, heat pumps, electric water heaters, andMerced). ACs Heat Pumps Combined Water Heaters Refrigerators

Mathieu, Johanna L.

2012-01-01T23:59:59.000Z

393

Design of a core-length thermionic fuel element for electrical heating  

SciTech Connect (OSTI)

This paper describes the design of an electrically heated version of a core-length Thermionic Fuel Element (TFE) with advanced features, as is suggested by the designation Advanced Thermionic Inititative (ATI). The advanced features include a high-strength emitter structure to be fabricated by Space Power, Incorporated. This structure consists of a cylindrical emitter, 15 mm diameter and 254 mm long of Chemically Vapor Deposited (CVD) tungsten, reinforced with tungsten-hafnium carbide wire wound over a CVD tungsten core with additional CVD tungsten incorporating and bonding the wire into the emitter. The emitter surface is CVD tungsten, deposited from tungsten chloride resulting in the desirable crystal orientation of [l angle]110[r angle]. It is possible to design a reactor with core-length TFEs so that it can be electrically tested prior to fueling. The program is focussed on the design and fabrication of a single core-length TFE with current collection at both ends which will be tested in a reactor. In parallel with this effort is the design, fabrication, and testing of an unfueled, electrically heated prototype. The intent is to make the electrically heated converter as similar as possible to the fueled one, while providing for accurate emitter and collector temperature measurement.

Miskolczy, G. (ThermoTrex Coporation, 85 First Avenue, P.O. Box 8995, Waltham, MA 02254-8995 (United States)); Horner, H. (General Atomics, 3550 General Atomics Court, P.O. Box 85608, San Diego, CA 92186-9784 (United States)); Lamp, T. (Wright Laboratories, WL/POOC-2, Wright Patternson Air Force Base, Ohio 45433-6563 (United States))

1993-01-20T23:59:59.000Z

394

Theoretical thermodynamic analysis of a closed-cycle process for the conversion of heat into electrical energy  

E-Print Network [OSTI]

Theoretical thermodynamic analysis of a closed-cycle process for the conversion of heat.g. by means of a solar concentrator), or can be the waste heat from an industrial pro- cess, or part of a co) Abstract We analyse a device aimed at the conversion of heat into electrical energy, based on a closed

Carati, Andrea

395

Development of a Market Optimized Condensing Gas Water Heater  

SciTech Connect (OSTI)

This program covered the development of a market optimized condensing gas water heater for residential applications. The intent of the program was to develop a condensing design that minimized the large initial cost premium associated with traditional condensing water heater designs. Equally important was that the considered approach utilizes design and construction methods that deliver the desired efficiency without compromising product reliability. Standard condensing water heater approaches in the marketplace utilize high cost materials such as stainless steel tanks and heat exchangers as well as expensive burner systems to achieve the higher efficiencies. The key in this program was to develop a water heater design that uses low-cost, available components and technologies to achieve higher efficiency at a modest cost premium. By doing this, the design can reduce the payback to a more reasonable length, increasing the appeal of the product to the marketplace. Condensing water heaters have been in existence for years, but have not been able to significantly penetrate the market. The issue has typically been cost. The high purchase price associated with existing condensing water heaters, sometimes as much as $2000, has been a very difficult hurdle to overcome in the marketplace. The design developed under this program has the potential to reduce the purchase price of this condensing design by as much as $1000 as compared to traditional condensing units. The condensing water heater design developed over the course of this program led to an approach that delivered the following performance attributes: 90%+ thermal efficiency; 76,000 Btu/hr input rate in a 50 gallon tank; First hour rating greater than 180 gph; Rapid recovery time; and Overall operating condition well matched to combination heat and hot water applications. Over the final three years of the program, TIAX worked very closely with A.O. Smith Water Products Company as our commercial partner to optimize the design for manufacturing. This work included the initiation of a large field testing program (over 125 units) and an in-depth reliability program intended to minimize the risks associated with a new product introduction. At the time of this report, A.O. Smith plans to introduce this product to the marketplace in the early 2006 time period.

Peter Pescatore

2006-01-11T23:59:59.000Z

396

Oklahoma Electric Cooperative- Energy Efficiency Rebate Program  

Broader source: Energy.gov [DOE]

Oklahoma Energy Cooperative (OEC) offers rebates to residential customers for the purchase of air-source heat pumps, dual-fuel heat pumps, geothermal heat pumps and water heaters. Air-source heat...

397

CenterPoint Energy- Residential Gas Heating Rebates  

Broader source: Energy.gov [DOE]

CenterPoint Energy offers gas heating and water heating equipment rebates to its residential customers. Eligible equipment includes furnaces, back-up furnace systems, hydronic heaters, storage...

398

Electric field noise above surfaces: a model for heating rate scaling law in ion traps  

E-Print Network [OSTI]

We present a model for the scaling laws of the electric field noise spectral density as a function of the distance, $d$, above a conducting surface. Our analytical approach models the patch potentials by introducing a correlation length, $\\zeta$, of the electric potential on the surface. The predicted scaling laws are in excellent agreement with two different classes of experiments (cold trapped ions and cantilevers), that span at least four orders of magnitude of $d$. According to this model, heating rate in miniature ion traps could be greatly reduced by proper material engineering.

Romain Dubessy; Thomas Coudreau; Luca Guidoni

2008-12-17T23:59:59.000Z

399

Radiant Barrier Performance during the Heating Season  

E-Print Network [OSTI]

with identical Fan Coil Units (FCU), digital thermostats and electric resistance heaters. Both heaters were identical and rated at 4100 Btu/hr. These heaters were directly connected to the thermostats and to watt-hour counters and watt-meters. The watt...

Medina, M. A.; O'Neal, D. L.; Turner, W. D.

400

Welding shield for coupling heaters  

DOE Patents [OSTI]

Systems for coupling end portions of two elongated heater portions and methods of using such systems to treat a subsurface formation are described herein. A system may include a holding system configured to hold end portions of the two elongated heater portions so that the end portions are abutted together or located near each other; a shield for enclosing the end portions, and one or more inert gas inlets configured to provide at least one inert gas to flush the system with inert gas during welding of the end portions. The shield may be configured to inhibit oxidation during welding that joins the end portions together. The shield may include a hinged door that, when closed, is configured to at least partially isolate the interior of the shield from the atmosphere. The hinged door, when open, is configured to allow access to the interior of the shield.

Menotti, James Louis (Dickinson, TX)

2010-03-09T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Preliminary Modeling, Testing and Analysis of a Gas Tankless Water Heater  

SciTech Connect (OSTI)

Tankless water heaters offer significant energy savings over conventional storage-tank water heaters, because thermal losses to the environment are much less. Although standard test results are available to compare tankless heaters with storage tank heaters, actual savings depend on the draw details because energy to heat up the internal mass depends on the time since the last draw. To allow accurate efficiency estimates under any assumed draw pattern, a one-node model with heat exchanger mass is posed here. Key model parameters were determined from test data. Burner efficiency showed inconsistency between the two data sets analyzed. Model calculations show that efficiency with a realistic draw pattern is {approx}8% lower than that resulting from using only large {approx}40 liter draws, as specified in standard water-heater tests. The model is also used to indicate that adding a small tank controlled by the tankless heater ameliorates unacceptable oscillations that tankless with feedback control can experience with pre-heated water too hot for the minimum burner setting. The added tank also eliminates problematic low-flow cut-out and hot-water-delay, but it will slightly decrease efficiency. Future work includes model refinements and developing optimal protocols for parameter extraction.

Burch, J.; Thornton, J.; Hoeschele, M.; Springer, D.; Rudd, A.

2008-01-01T23:59:59.000Z

402

Performance improvement of direct- and indirect-fired heaters  

SciTech Connect (OSTI)

The operating performance of direct and indirect heaters is discussed, and principles and guidelines that can be applied to effect improvements in efficiency are presented. This paper also discusses the associated heater efficiencies and several useful operating techniques to approach the maximum, steady-state heater efficiency. The techniques presented apply to all types of direct-and indirect-fired heaters: salt bath heaters, propane vaporizers, heater/treaters, production heaters, and glycol and amine regenerators.

Sams, G.W.; Hunter, J.D.

1988-08-01T23:59:59.000Z

403

Thermal engine driven heat pump for recovery of volatile organic compounds  

DOE Patents [OSTI]

The present invention relates to a method and apparatus for separating volatile organic compounds from a stream of process gas. An internal combustion engine drives a plurality of refrigeration systems, an electrical generator and an air compressor. The exhaust of the internal combustion engine drives an inert gas subsystem and a heater for the gas. A water jacket captures waste heat from the internal combustion engine and drives a second heater for the gas and possibly an additional refrigeration system for the supply of chilled water. The refrigeration systems mechanically driven by the internal combustion engine effect the precipitation of volatile organic compounds from the stream of gas.

Drake, Richard L. (Schenectady, NY)

1991-01-01T23:59:59.000Z

404

NREL and Industry Advance Low-Cost Solar Water Heating R&D (Fact Sheet)  

SciTech Connect (OSTI)

NREL and Rhotech develop cost-effective solar water heating prototype to rival natural gas water heater market.

Not Available

2014-08-01T23:59:59.000Z

405

Development and Field Testing of a Hybrid Water Heating and Dehumidification Appliance  

E-Print Network [OSTI]

standard system is replaced by a Heat Pump Water Heater (HPWH), the performance can be increased by 140

Aaron K. Ball; Chip Ferguson; William Mcdaniel

406

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

the exhaust steam in an indirect condenser and rejects heatSteam Feedwater Heaters* - Installed Cost of the Dry-Cooling Tower and Condenser* -steam feedwater heaters Feedwater (50BoK, 14.5 MPa) I nd irect condenser

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

407

The determination of the natural convection heat transfer coefficients for a heated cylinder in air at sub-atmospheric pressures  

E-Print Network [OSTI]

wire. Electrical power leads were attached to all of the heaters and were led through the interior of the entire assembly. Thermal insulation of the heated portion of the test assembly from the support was provided by using a 1-in. long Micarta tube... VI Presentation of Data 37 References 41 LIST OF FIGURES Figure Page Schematic Diagram of the Test Facility The Test Facility The Natural Convection Vacuum Chamber The Test Cylinder Assembly and the Air Temperature Measuring Probe Schematic...

Sullivan, Lawrence Brozak

2012-06-07T23:59:59.000Z

408

An air-to-air heat pump (COP-3.11 at 470 F (8.30C)) run alternately with an electric-resistance water  

E-Print Network [OSTI]

- ter than that of the system using electric resistance water heating. An analytical tinclel predicts of a high-efficiency heat pump'/electric-resistance .waterheater (IIP/IZR) system. TEST FACILITIES#12;/ ABSTRACT An air-to-air heat pump (COP-3.11 at 470 F (8.30C)) run alternately with an electric

Oak Ridge National Laboratory

409

Joint used for coupling long heaters  

DOE Patents [OSTI]

Systems for coupling ends of elongated heaters and methods of using such systems to treat a subsurface formation are described herein. A system may include two elongated heaters with an end portion of one heater abutted or near to an end portion of the other heater and a core coupling material. The core coupling material may extend between the two elongated heaters. The elongated heaters may include cores and at least one conductor substantially concentrically surrounds the cores. The cores may have a lower melting point than the conductors. At least one end portion of the conductor may have a beveled edge. The gap formed by the beveled edge may be filled with a coupling material for coupling the one or more conductors. One end portion of at least one core may have a recessed opening and the core coupling material may be partially inside the recessed opening.

Menottie, James Louis

2013-02-26T23:59:59.000Z

410

Effect of Heat and Electricity Storage and Reliability on Microgrid Viability: A Study of Commercial Buildings in California and New York States  

E-Print Network [OSTI]

CA nursing homes is the constant total NYC heating load. Theand heating demand were performed for the CA nursing home.home meets all of its electricity demand via utility purchases and heating

Stadler, Michael

2009-01-01T23:59:59.000Z

411

Condensing Hybrid Water Heater Monitoring Field Evaluation  

SciTech Connect (OSTI)

This paper summarizes the Mascot home, an abandoned property that was extensively renovated. Several efficiency upgrades were integrated into this home, of particular interest, a unique water heater (a Navien CR240-A). Field monitoring was performed to determine the in-use efficiency of the hybrid condensing water heater. The results were compared to the unit's rated efficiency. This unit is Energy Star qualified and one of the most efficient gas water heaters currently available on the market.

Maguire, J.; Earle, L.; Booten, C.; Hancock, C. E.

2011-10-01T23:59:59.000Z

412

1 CO2 Heat Pump System for Space Heating and Hot Water Heating in Low-Energy Houses and Passive  

E-Print Network [OSTI]

designed as a stand-alone system, i.e. a heat pump water heater in combination with a separate unit for

J. Stene

2008-01-01T23:59:59.000Z

413

Water Heaters and Hot Water Distribution Systems  

E-Print Network [OSTI]

24 Figure 7. Comparison of Daily Water Heater28 Figure 8. Monitored Field Efficiency of Tankless Water28 Figure 9. Monitored Lab Efficiency of Tankless Water

Lutz, Jim

2012-01-01T23:59:59.000Z

414

CO2 Conversion By Nano Heaters  

ScienceCinema (OSTI)

A graduate student named Oshadha Ranasingha created this animation on the research he performed on nano heaters while working at NETL.

None

2014-06-23T23:59:59.000Z

415

CO2 Conversion By Nano Heaters  

SciTech Connect (OSTI)

A graduate student named Oshadha Ranasingha created this animation on the research he performed on nano heaters while working at NETL.

None

2014-03-11T23:59:59.000Z

416

Solar heating and domestic hot water system installed at Kansas City, Fire Station, Kansas City, Missouri. Final report  

SciTech Connect (OSTI)

This document is the final report of the solar energy heating and hot water system installed at the Kansas City Fire Station, Number 24, 2309 Hardesty Street, Kansas City, Missouri. The solar system was designed to provide 47 percent of the space heating, 8800 square feet area and 75 percent of the domestic hot water (DHW) load. The solar system consists of 2808 square feet of Solaron, model 2001, air, flat plate collector subsystem, a concrete box storage subsystem which contains 1428 cubic feet of 1/2 inch diameter pebbles weighing 71 1/2 tons, a DHW preheat tank, blowers, pumps, heat exchangers, air ducting, controls and associated plumbing. Two 120-gallon electric DHW heaters supply domestic hot water which is preheated by the solar system. Auxiliary space heating is provided by three electric heat pumps with electric resistance heaters and four 30-kilowatt electric unit heaters. There are six modes of system operation. This project is part of the Department of Energy PON-1 Solar Demonstration Program with DOE cost sharing $154,282 of the $174,372 solar system cost. The Final Design Review was held March 1977, the system became operational March 1979 and acceptance test was completed in September 1979.

None

1980-07-01T23:59:59.000Z

417

FEMP Designated Product Assessment for Commercial Gas Water Heaters  

E-Print Network [OSTI]

price for a condensing commercial water heater is $1,579.For condensing commercial water heaters with a thermalFound products for water heater in any product field and gas

Lutz, Jim

2012-01-01T23:59:59.000Z

418

Hot Thermal Storage/Selective Energy System Reduces Electric Demand for Space Cooling As Well As Heating in Commercial Application  

E-Print Network [OSTI]

energy and off-peak electric resistance heating. Estimated energy and first cost savings, as compared with an all-electric VAV HVAC system, are: 30 to 50% in ductwork size and cost; 30% in fan energy; 25% in air handling equipment; 20 to 40% in utility...

Meckler, G.

1985-01-01T23:59:59.000Z

419

Proceedings: Heat exchanger workshop  

SciTech Connect (OSTI)

Heat transfer processes are of controlling importance in the operation of a thermal power plant. Heat exchangers are major cost items and are an important source of problems causing poor power plant availability and performance. A workshop to examine the improvements that can be made to heat exchangers was sponsored by the Electric Power Research Institute (EPRI) on June 10-11, 1986, in Palo Alto, California. This workshop was attended by 25 engineers and scientists representing EPRI-member utilities and EPRI consultants. A forum was provided for discussions related to the design, operation and maintenance of utility heat transfer equipment. The specific objectives were to identify research directions that could significantly improve heat exchanger performance, reliability and life cycle economics. Since there is a great diversity of utility heat transfer equipment in use, this workshop addressed two equipment categories: Boiler Feedwater Heaters (FWH) and Heat Recovery Steam Generators (HRSG). The workshop was divided into the following panel sessions: functional design, mechanical design, operation, suggested research topics, and prioritization. Each panel session began with short presentations by experts on the subject and followed by discussions by the attendees. This report documents the proceedings of the workshop and contains recommendations of potentially valuable areas of research and development. 4 figs.

Not Available

1987-07-01T23:59:59.000Z

420

Cab Heating and Cooling  

SciTech Connect (OSTI)

Schneider National, Inc., SNI, has concluded the Cab Heating and Cooling evaluation of onboard, engine off idling solutions. During the evaluation period three technologies were tested, a Webasto Airtronic diesel fired heater for cold weather operation, and two different approaches to cab cooling in warm weather, a Webasto Parking Cooler, phase change storage system and a Bergstrom Nite System, a 12 volt electrical air conditioning approach to cooling. Diesel fired cab heaters were concluded to provide adequate heat in winter environments down to 10 F. With a targeted idle reduction of 17%, the payback period is under 2 years. The Webasto Parking Cooler demonstrated the viability of this type of technology, but required significant driver involvement to achieve maximum performance. Drivers rated the technology as ''acceptable'', however, in individual discussions it became apparent they were not satisfied with the system limitations in hot weather, (over 85 F). The Bergstrom Nite system was recognized as an improvement by drivers and required less direct driver input to operate. While slightly improved over the Parking Cooler, the hot temperature limitations were only slightly better. Neither the Parking Cooler or the Nite System showed any payback potential at the targeted 17% idle reduction. Fleets who are starting at a higher idle baseline may have a more favorable payback.

Damman, Dennis

2005-10-31T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Hot Water Draw Patterns in Single-Family Houses: Findings from Field Studies  

E-Print Network [OSTI]

Two Demand Electric Water Heaters for Northeast Utilities.Two Demand Electric Water Heaters for Northeast Utilities.Johnson. Heat Pump Water Heater Field Test: 30 Crispaire

Lutz, Jim

2012-01-01T23:59:59.000Z

422

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

Study on Eco-Design of Water Heaters, Van Holstein en Kemnaon Eco-Design of Water Heaters”, Task 5 Report, DefinitionTesting of Tankless Gas Water Heater Performance. Davis

Lu, Alison

2011-01-01T23:59:59.000Z

423

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

than standard storage water heaters [2]. However, they aredown for both storage-type water heaters and tankless water1]. The typical water heater storage tank wastes energy to

Lu, Alison

2011-01-01T23:59:59.000Z

424

Efficient Residential Water Heaters Webinar | Department of Energy  

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

Weatherization Assistance Program Pilot Projects Efficient Residential Water Heaters Webinar Efficient Residential Water Heaters Webinar On Feb. 22, 2011, Jerone Gagliano,...

425

Covered Product Category: Residential Gas Storage Water Heaters...  

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

Storage Water Heaters Covered Product Category: Residential Gas Storage Water Heaters The Federal Energy Management Program (FEMP) provides acquisition guidance for gas storage...

426

Preliminary Modeling, Testing, and Analysis of a Gas Tankless Water Heater: Preprint  

SciTech Connect (OSTI)

Today's gas tankless water heaters offer significant energy savings over conventional gas storage tank water heaters, but savings depends on the draw pattern. A one-node model incorporating heat exchanger mass is used to address this and other issues. Key model parameters are determined from least-squares regression on short-term data, including burner efficiency, thermal capacitance, and thermal loss coefficient. The calibrated model agrees with data to ~5% on Qgas, with temperature RMS deviation of ~4..deg..C. Efficiency with a standard realistic draw is 71%, compared to 81% predicted from standard energy-factors. Adding a small tank controlled by the tankless heater solves issues of oscillations with solar pre-heat, low-flow and hot-water-delay issues. Future work includes model refinements and developing optimal data protocols for model parameter extraction.

Burch, J.; Hoeschele, M.; Springer, D.; Rudd, A.

2008-05-01T23:59:59.000Z

427

Research and Design of a Sample Heater for Beam Line 6-2c Transmission X-ray Microscope  

SciTech Connect (OSTI)

There exists a need for environmental control of samples to be imaged by the Transmission X-Ray Microscope (TXM) at the SSRLs Beam Line 6-2c. In order to observe heat-driven chemical or morphological changes that normally occur in situ, microscopes require an additional component that effectively heats a given sample without heating any of the microscope elements. The confinement of the heat and other concerns about the heaters integrity limit which type of heater is appropriate for the TXM. The bulk of this research project entails researching different heating methods used previously in microscopes, but also in other industrial applications, with the goal of determining the best-fitting method, and finally in designing a preliminary sample heater.

Policht, Veronica; /Loyola U., Chicago /SLAC

2012-08-27T23:59:59.000Z

428

Orlando Utilities Commission- Residential Solar Water Heater Rebate Program (Florida)  

Broader source: Energy.gov [DOE]

The Orlando Utilities Commission (OUC) offers residential electric customers a point-of-sale rebate of $1,000 for new solar water heating systems.

429

Catalog of DC Appliances and Power Systems  

E-Print Network [OSTI]

source electric heat-pump water heater is 2.2 9 or greater,other than Heat Pumps Electric Water Heaters FreezersGeothermal Heat Pumps Solar Water Heaters Electric Heat

Garbesi, Karina

2012-01-01T23:59:59.000Z

430

Integral finned heater and cooler for stirling engines  

DOE Patents [OSTI]

A piston and cylinder for a Stirling engine and the like having top and bottom meshing or nesting finned conical surfaces to provide large surface areas in close proximity to the working gas for good thermal (addition and subtraction of heat) exchange to the working gas and elimination of the usual heater and cooler dead volume. The piston fins at the hot end of the cylinder are perforated to permit the gas to pass into the piston interior and through a regenerator contained therein.

Corey, John A. (North Troy, NY)

1984-01-01T23:59:59.000Z

431

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 2, Fluorescent lamp ballasts, television sets, room air conditioners, and kitchen ranges and ovens  

SciTech Connect (OSTI)

This document is divided into ``volumes`` B through E, dealing with individual classes of consumer products. Chapters in each present engineering analysis, base case forecasts, projected national impacts of standards, life-cycle costs and payback periods, impacts on manufacturers, impacts of standards on electric utilities, and environmental effects. Supporting appendices are included.

Not Available

1993-11-01T23:59:59.000Z

432

Proposal for the Award of a Contract for the Supply and Installation of a gas Turbine for Combined Generation of Electricity and Heat in the Heating Plant on the Meyrin Site  

E-Print Network [OSTI]

Proposal for the Award of a Contract for the Supply and Installation of a gas Turbine for Combined Generation of Electricity and Heat in the Heating Plant on the Meyrin Site

1994-01-01T23:59:59.000Z

433

Heat transfer analysis in Stirling engine heat input system  

SciTech Connect (OSTI)

One of the major factor in commercialization of Stirling engine is mass productivity, and the heat input system including tubular heater is one of the obstacles to mass production because of its complexity in shape and difficulty in manufacturing, which resulted from using oxidation-resistant, low-creep alloys which are not easy to machine and weld. Therefore a heater heat exchanger which is very simple in shape and easy to make has been devised, and a burner system appropriate to this heater also has been developed. In this paper specially devised heat input system which includes a heater shell shaped like U-cup and a flame tube located in the heater shell is analyzed in point of heat transfer processes to find optimum heat transfer. To enhance the heat transfer from the flame tube to the heater shell wall, it is required that the flame tube diameter be enlarged as close to the heater shell diameter as possible, and the flame tube temperature be raised as high as possible. But the enlargement of the flame tube diameter should be restricted by the state of combustion affected by hydraulic resistance of combustion gas, and the boost of the flame tube temperature should be considered carefully in the aspects of the flame tube`s service life.

Chung, W.; Kim, S. [LG Electronics Inc., Seoul (Korea, Republic of). Living System Lab.

1995-12-31T23:59:59.000Z

434

Estimating Total Energy Consumption and Emissions of China's Commercial and Office Buildings  

E-Print Network [OSTI]

water heating Technologies Electric heater Gas boilerCoal Boiler Small cogen Stove District heating Heat pumpElectric water heater Gas boiler Coal Boiler Small cogen Oil

Fridley, David G.

2008-01-01T23:59:59.000Z

435

Novel Direct Steelmaking by Combining Microwave, Electric Arc, and Exothermal Heating Technologies  

SciTech Connect (OSTI)

Steel is a basic material broadly used by perhaps every industry and individual. It is critical to our nation's economy and national security. Unfortunately, the American steel industry is losing competitiveness in the world steel production field. There is an urgent need to develop the next generation of steelmaking technology for the American steel industry. Direct steelmaking through the combination of microwave, electric arc, and exothermal heating is a revolutionary change from current steelmaking technology. This technology can produce molten steel directly from a shippable agglomerate, consisting of iron oxide fines, powdered coal, and ground limestone. This technology is projected to eliminate many current intermediate steelmaking steps including coking, pellet sintering, blast furnace (BF) ironmaking, and basic oxygen furnace (BOF) steelmaking. This technology has the potential to (a) save up to 45% of the energy consumed by conventional steelmaking; (b) dramatically reduce the emission of CO{sub 2}, SO{sub 2}, NO{sub x}, VOCs, fine particulates, and air toxics; (c) substantially reduce waste and emission control costs; (d) greatly lower capital cost; and (e) considerably reduce steel production costs. This technology is based on the unique capability of microwaves to rapidly heat steelmaking raw materials to elevated temperature, then rapidly reduce iron oxides to metal by volumetric heating. Microwave heating, augmented with electric arc and exothermal reactions, is capable of producing molten steel. This technology has the components necessary to establish the ''future'' domestic steel industry as a technology leader with a strong economically competitive position in world markets. The project goals were to assess the utilization of a new steelmaking technology for its potential to achieve better overall energy efficiency, minimize pollutants and wastes, lower capital and operating costs, and increase the competitiveness of the U.S. steel industry. The objectives associated with this goal were to (a) generate a solid base of technical, marketing, economic, and policy data, (b) develop energy, environmental, and economic targets, (c) more definitively assess opportunities and barriers, (d) accumulate knowledge and experience for defining direction for the next phase of development, and (e) promote learning and training of students.

Dr. Xiaodi Huang; Dr. J. Y. Hwang

2005-03-28T23:59:59.000Z

436

The LBNL Water Heater Retail Price Database  

E-Print Network [OSTI]

Olson, and Stuart Chaitkin (LBNL). We also want to thank ourand Mithra Moezzi, also of LBNL. This work was supported byLBNL – 44749 The LBNL Water Heater Retail Price Database

Lekov, Alex; Glover, Julie; Lutz, Jim

2000-01-01T23:59:59.000Z

437

Grays Harbor PUD- Solar Water Heater Loan  

Broader source: Energy.gov [DOE]

Since October 2001, Grays Harbor PUD has offered a low-interest loan program (currently 4.0%) for the installation of solar water heaters. Loans are available for the installation of solar...

438

Grays Harbor PUD- Solar Water Heater Rebate  

Broader source: Energy.gov [DOE]

Since October 2001, Grays Harbor PUD has offered a rebate program for the installation of solar water heaters. Rebates of $600 are available for the installation of solar collectors of 40 square...

439

Approved Space Heaters In order to ensure that all space heaters meet current safety guidelines, the University Fire Department  

E-Print Network [OSTI]

EHS 1/2012 Approved Space Heaters In order to ensure that all space heaters meet current safety approved a limited selection of space heaters for use within the University, which are available at Central Stores. The following Space Heaters are approved for use in University of Connecticut buildings provided

Holsinger, Kent

440

Reducing NOx in Fired Heaters and Boilers  

E-Print Network [OSTI]

-6, 2000 Reducing NOx in Fired Heaters Air Pollution Control and Boilers Keeping the environment clean Presented by Ashutosh Garg Furnace Improvements Low cost solutions for fired heaters Trace compounds ? Nitric oxides ? Carbon monoxide ? Sulfur... it is essential to estimate accurately baseline NOx emissions. ? This will establish each units current compliance status. ? Emissions ? Current excess air level ? Carbon monoxide ? Combustibles ? NOx corrected to 3% 02 314 ESL-IE-00-04-46 Proceedings...

Garg, A.

Note: This page contains sample records for the topic "heaters electric heat" 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

Diesel particulate filter with zoned resistive heater  

SciTech Connect (OSTI)

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

Gonze, Eugene V [Pinckney, MI

2011-03-08T23:59:59.000Z

442

Effect of Heat and Electricity Storage and Reliability on Microgrid Viability: A Study of Commercial Buildings in California and New York States  

E-Print Network [OSTI]

optimal could be acquired. Battery storage costs are roughlylead/acid battery) and thermal storage, capabilities, withcell electric storage heat storage flow battery abs. chiller

Stadler, Michael

2009-01-01T23:59:59.000Z

443

Electrically heated ex-reactor pellet-cladding interaction (PCI) simulations utilizing irradiated Zircaloy cladding. [PWR  

SciTech Connect (OSTI)

In a program sponsored by the Fuel Systems Research Branch of the US Nuclear Regulatory Commission, a series of six electrically heated fuel rod simulation tests were conducted at Pacific Northwest Laboratory. The primary objective of these tests was to determine the susceptibility of irradiated pressurized-water reactor (PWR) Zircaloy-4 cladding to failures caused by pellet-cladding mechanical interaction (PCMI). A secondary objective was to acquire kinetic data (e.g., ridge growth or relaxation rates) that might be helpful in the interpretation of in-reactor performance results and/or the modeling of PCMI. No cladding failures attributable to PCMI occurred during the six tests. This report describes the testing methods, testing apparatus, fuel rod diametral strain-measuring device, and test matrix. Test results are presented and discussed.

Barner, J.O.; Fitzsimmons, D.E.

1985-02-01T23:59:59.000Z

444

Installation guidelines for Solar Heating System, single-family residence at New Castle, Pennsylvania  

SciTech Connect (OSTI)

The Solar Heating System installer guidelines are provided for each subsystem and includes testing and filling the system. This single-family residential heating system is a solar-assisted, hydronic-to-warm-air system with solar-assisted domestic water heating. It is composed of the following major components: liquid cooled flat plate collectors; water storage tank; passive solar-fired domestic water preheater; electric hot water heater; heat pump with electric backup; solar hot water coil unit; tube-and-shell heat exchanger, three pumps, and associated pipes and valving in an energy transport module; control system; and air-cooled heat purge unit. Information is also provided on the operating procedures, controls, caution requirements, and routine and schedule maintenance. Information consists of written procedures, schematics, detail drawings, pictures and manufacturer's component data.

Not Available

1980-01-01T23:59:59.000Z

445

Geothermal Heating and Cooling Systems Featured on NBC Nightly...  

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

American homes. View the video. Addthis Related Articles Geothermal Energy Featured on NBC's Today Show Building America Update - January 15, 2015 Heat Pump Water Heater Basics...

446

austenitic heat resisting: Topics by E-print Network  

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

C-dynamical system 160 THE EFFECT OF LOCATION OF THE PREDICTED PERFORMANCE OF A HEAT PUMP WATER HEATER Energy Storage, Conversion and Utilization Websites Summary: 12;THE...

447

Lightning Dock Geothermal Space Heating Project: Lightning Dock...  

Open Energy Info (EERE)

geothermal greenhouse and home heating systems, which consisted of pumping geothermal water and steam through passive steam heaters, and convert the systems to one using modern...

448

Development and Field Trial of Dimpled-Tube Technology for Chemical Industry Process Heaters  

SciTech Connect (OSTI)

Most approaches to increasing heat transfer rates in the convection sections of gas-fired process heaters involve the incorporation of fins, baffles, turbulizers, etc. to increase either the heat transfer surface area or turbulence or both. Although these approaches are effective in increasing the heat transfer rates, this increase is invariably accompanied by an associated increase in convection section pressure drop as well as, for heaters firing ‘dirty’ fuel mixtures, increased fouling of the tubes – both of which are highly undesirable. GTI has identified an approach that will increase heat transfer rates without a significant increase in pressure drop or fouling rate. Compared to other types of heat transfer enhancement approaches, the proposed dimpled tube approach achieves very high heat transfer rates at the lowest pressure drops. Incorporating this approach into convection sections of chemical industry fired process heaters may increase energy efficiency by 3-5%. The energy efficiency increase will allow reducing firing rates to provide the required heating duty while reducing the emissions of CO2 and NOx.

Yaroslav Chudnovsky; Aleksandr Kozlov

2006-10-12T23:59:59.000Z

449

Economics of Condensing Gas Furnaces and Water Heaters Potential in Residential Single Family Homes  

SciTech Connect (OSTI)

Residential space and water heating accounts for over 90percent of total residential primary gas consumption in the United States. Condensing space and water heating equipment are 10-30percent more energy-efficient than conventional space and water heating. Currently, condensing gas furnaces represent 40 percent of shipments and are common in the Northern U.S. market. Meanwhile, manufacturers are planning to develop condensing gas storage water heaters to qualify for Energy Star? certification. Consumers, installers, and builders who make decisions about installing space and water heating equipment generally do not perform an analysis to assess the economic impacts of different combinations and efficiencies of space and water heating equipment. Thus, equipment is often installed without taking into consideration the potential life-cycle economic and energy savings of installing space and water heating equipment combinations. Drawing on previous and current analysis conducted for the United States Department of Energy rulemaking on amended standards for furnaces and water heaters, this paper evaluates the extent to which condensing equipment can provide life-cycle cost-effectiveness in a representative sample of single family American homes. The economic analyses indicate that significant energy savings and consumer benefits may result from large-scale introduction of condensing water heaters combined with condensing furnaces in U.S. residential single-family housing, particularly in the Northern region. The analyses also shows that important benefits may be overlooked when policy analysts evaluate the impact of space and water heating equipment separately.

Lekov, Alex; Franco, Victor; Meyers, Steve

2010-05-14T23:59:59.000Z

450

Eliminating air heater plugging and corrosion caused by SCR/SNCR systems for NOx control on coal-fired boilers  

SciTech Connect (OSTI)

In a typical coal-fired power plant the rotary regenerative air heater is responsible for 5-10% of the boiler's total efficiency. The three biggest threats to air heater performance deterioration are corrosion of the heat exchange surfaces, plugging, and air heater leakage through the seals. The article concentrates on the vastly increased level of corrosion and plugging issues associated with installing selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR) systems for controlling nitrogen oxide emissions. Some injected ammonia in the SCR process reacts with SO{sub 2} to form ammonium sulphate and bisulphate (ABS) which is deposited on the air heater element surfaces. This can be overcome by applying coatings, using corrosion-resistant steels, reconfiguring the air heaters to a two layer design, improving air heater blowers, improving technologies for removing ammonia 'slip' before it enters the air heater, and using new catalysts that reduce the oxidation of SO{sub 2} to SO{sub 3}. 4 figs.

Guffre, J. [Paragon Airheater Technologies (United States)

2007-10-15T23:59:59.000Z

451

Electric coheating as a means to test duct efficiency: A review and analysis of the literature  

SciTech Connect (OSTI)

Recent published literature on electric coheating was reviewed in order to assess its suitability for use in a method of test for the efficiency of residential duct systems. Electric coheating is the research use of electric heaters within the heated space to assess the thermal integrity of the building envelope. Information was sought in two primary areas: (1) experimental methodology and (2) accuracy of the coheating method. A variety of experimental variations was found, and the method was judged, on the basis of published data, to be capable of sufficient accuracy for use in duct testing.

Andrews, J.W.

1995-08-01T23:59:59.000Z

452

High-power ELF radiation generated by modulated HF heating of the ionosphere can cause Earthquakes, Cyclones and localized heating  

E-Print Network [OSTI]

High-power ELF radiation generated by modulated HF heating of the ionosphere can cause Earthquakes, the HAARP heater is the most powerful ionospheric heater, with 3.6GW of effective power using HF heating, Cyclones and localized heating Fran De Aquino Maranhao State University, Physics Department, S

Paris-Sud XI, Université de

453

Economics of Condensing Gas Furnaces and Water Heaters Potential in Residential Single Family Homes  

E-Print Network [OSTI]

develop condensing gas storage water heaters to qualify forgas furnace and gas storage water heater. This study focusesis predominantly storage water heaters. Regionally, gas-

Lekov, Alex

2011-01-01T23:59:59.000Z

454

San Isabel Electric Association- Residential Energy Efficiency Rebate Program  

Broader source: Energy.gov [DOE]

San Isabel Electric Association (SIEA) provides incentives for its residential customers to install energy efficient equipment. Rebates are available for certain water heaters, washers, dryers,...

455

FROM: Keith Dennis, National Rural Electric Cooperative Association...  

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

standards for large (>55 gallon) residential electric storage water heaters used in demand response and thermal energy storage programs (Docket No. EERE-2012-BT-STD-0022). In...

456

Central New Mexico Electric Cooperative- Residential Energy Efficiency Rebate Program  

Broader source: Energy.gov [DOE]

Central New Mexico Electric Cooperative (CNMEC) provides an incentive for its residential members to purchase energy efficient water heaters, clothes washers, dishwashers, refrigerators, and...

457

Accelerated Life Structural Benchmark Testing for a Stirling Convertor Heater Head  

SciTech Connect (OSTI)

For proposed long-duration NASA Space Science missions, the Department of Energy, Lockheed Martin, Infinia Corporation, and NASA Glenn Research Center are developing a high-efficiency, 110-watt Stirling Radioisotope Generator (SRG110). A structurally significant limit state for the SRG110 heater head component is creep deformation induced at high material temperature and low stress level. Conventional investigations of creep behavior adequately rely on experimental results from uniaxial creep specimens, and a wealth of creep data is available for the Inconel 718 material of construction. However, the specified atypical thin heater head material is fine-grained with a heat treatment that limits precipitate growth, and little creep property data for this microstructure is available in the literature. In addition, the geometry and loading conditions apply a multiaxial stress state on the component, far from the conditions of uniaxial testing. For these reasons, an extensive experimental investigation is ongoing to aid in accurately assessing the durability of the SRG110 heater head. This investigation supplements uniaxial creep testing with pneumatic testing of heater head-like pressure vessels at design temperature with stress levels ranging from approximately the design stress to several times that. This paper presents experimental results, post-test microstructural analyses, and conclusions for four higher-stress, accelerated life tests. Analysts are using these results to calibrate deterministic and probabilistic analytical creep models of the SRG110 heater head.

Krause, David L. [National Aeronautics and Space Administration, Glenn Research Center, Cleveland, OH 44135 (United States); Kantzos, Pete T. [Ohio Aerospace Institute, NASA Glenn Research Center, Cleveland, OH 44135 (United States)

2006-01-20T23:59:59.000Z

458

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network [OSTI]

CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRICCHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRICprocess Boeing solar receiver [5J Internal detail of Boeing solar receiver [5J . 2.4 Heat

Dayan, J.

2011-01-01T23:59:59.000Z

459

ELECTRICAL RESISTANCE HEATING OF SOILS AT C-REACTOR AT THE SAVANNAH RIVER SITE  

SciTech Connect (OSTI)

Chlorinated solvent contamination of soils and groundwater is an endemic problem at the Savannah River Site (SRS), and originated as by-products from the nuclear materials manufacturing process. Five nuclear reactors at the SRS produced special nuclear materials for the nation's defense program throughout the cold war era. An important step in the process was thorough degreasing of the fuel and target assemblies prior to irradiation. Discharges from this degreasing process resulted in significant groundwater contamination that would continue well into the future unless a soil remediation action was performed. The largest reactor contamination plume originated from C-Reactor and an interim action was selected in 2004 to remove the residual trichloroethylene (TCE) source material by electrical resistance heating (ERH) technology. This would be followed by monitoring to determine the rate of decrease in concentration in the contaminant plume. Because of the existence of numerous chlorinated solvent sources around SRS, it was elected to generate in-house expertise in the design and operation of ERH, together with the construction of a portable ERH/SVE system that could be deployed at multiple locations around the site. This paper describes the waste unit characteristics, the ERH system design and operation, together with extensive data accumulated from the first deployment adjacent to the C-Reactor building. The installation heated the vadose zone down to 62 feet bgs over a 60 day period during the summer of 2006 and raised soil temperatures to over 200 F. A total of 730 lbs of trichloroethylene (TCE) were removed over this period, and subsequent sampling indicated a removal efficiency of 99.4%.

Blundy, R; Michael Morgenstern, M; Joseph Amari, J; Annamarie MacMurray, A; Mark Farrar, M; Terry Killeen, T

2007-09-10T23:59:59.000Z

460

Business Case for Energy Efficiency in Support of Climate Change Mitigation, Economic and Societal Benefits in China  

E-Print Network [OSTI]

Fluorescent Ballasts Electric Water Heaters Standby PowerRanges Gas Ranges Gas Water Heaters Gas Boilers CommercialHeating) Commercial Gas Water Heaters Industrial Motors

McNeil, Michael A.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters electric heat" 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

Business Case for Energy Efficiency in Support of Climate Change Mitigation, Economic and Societal Benefits in China  

E-Print Network [OSTI]

Ballasts Electric Water Heaters Standby Power InductionRanges Gas Ranges Gas Water Heaters Gas Boilers CommercialHeating) Commercial Gas Water Heaters Industrial Motors

McNeil, Michael A.

2012-01-01T23:59:59.000Z

462

Global Potential of Energy Efficiency Standards and Labeling Programs  

E-Print Network [OSTI]

Domestic Electric Storage Water Heater (DESWH) Test Methodsand Renewable Energy (2000). Water Heater Energy StandardsAir Conditioners, Water Heaters, Direct Heating Equipment,

McNeil, Michael A

2008-01-01T23:59:59.000Z

463

INTERNATIONAL COMPARISON OF RESIDENTIAL ENERGY USE: INDICATORS OF RESIDENTIAL ENERGY USE AND EFFICIENCY PART ONE: THE DATA BASE  

E-Print Network [OSTI]

The water heaters are either with storage or without, andElectric water heaters are only large devices with storage,water heating systems (direct heaters, independant storage

Schipper, L.

2013-01-01T23:59:59.000Z

464

Energy Efficiency Design Options for Residential Water Heaters: Economic Impacts on Consumers  

E-Print Network [OSTI]

this indirect increase in home heating (and the decrease inincrease the home’s heating load in the heating season (electricity (42% of homes) for water heating. (DOE EIA 2005)

Lekov, Alex

2011-01-01T23:59:59.000Z

465

Vapor canister heater for evaporative emissions systems  

SciTech Connect (OSTI)

Automotive evaporative emissions systems use a charcoal canister to store evaporative hydrocarobn emissions. These stored vapors are later purged and burned during engine operation. Under certain conditions the engine cannot completely purge the canister of the stored fuel vapors, which results in a decreased vapor storage capacity in the canister. A self-regulating PTC (Positive Temperature Coefficient) heater has been developed to warm the purge air as it enters the canister, in order to provide thermal energy for increased release of the vapors from charcoal sites. This paper describes the construction and operation of the vapor canister heater as it relates to improved evaporative emission system performance.

Bishop, R.P.; Berg, P.G.

1987-01-01T23:59:59.000Z

466

Gas Water Heater Energy Losses  

E-Print Network [OSTI]

hr) 2. Pilot Input Rate (Btu/hr) 3. Excess Air (%) 4. Off-atm) 14. Higher Heating Value (Btu/SCF) 1028.0 15. SpecificProtection Tubes R (hr*ft2*F/Btu)? Fitting Emissivity SCREEN

Biermayer, Peter

2012-01-01T23:59:59.000Z

467

Regenerative Boiler Feedwater Heater Economics  

E-Print Network [OSTI]

O- REFEREWCE (,\\SI:: J CURRENT CASE I CHANGE INCR or DEeR 7JTAL FUEL M 10?E. BTU/HR 842.44 827. 9~ -14.50 .i) .. ft!::.::r COUPLED SHAFT P()I,oIER 8HP 4700 4700 0 TuTAl ELECTRICAL GENERATION 8AC... PRESSURE TURBINES CONDENSING TURBI HES 5TE...

Viar, W. L.

468

Installation guidelines for solar heating system, single-family residence at William O'Brien State Park, Stillwater, Minnesota  

SciTech Connect (OSTI)

The Solar Heating System installer guidelines are provided for each subsystem and testing and filling the system are included. This single-family residential heating system is a solar-assisted, hydronic-to-warm-air system with solar-assisted domestic water heating. It is composed of the following major components: liquid cooled flat plate collectors; water storage tank; passive solar-fired domestic water preheater; electric hot water heater; heat pump with electric backup; solar hot water coil unit; tube-and-shell heat exchanger, three pumps, and associated pipes and valving in an energy transport module; control system; and air-cooled heat purge unit. Information is also provided on the operating procedures, controls, caution requirements, and routine and schedule maintenance. Information consists of written procedures, schematics, detail drawings, pictures and manufacturer's component data.

Not Available

1980-05-01T23:59:59.000Z

469

Outdoor Outfitter Gets Greener With Solar Water Heater | Department...  

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

Outdoor Outfitter Gets Greener With Solar Water Heater Outdoor Outfitter Gets Greener With Solar Water Heater October 8, 2010 - 12:51pm Addthis L.L. Beans flagship store sees...

470

Solar Water Heater Rebate Program (U.S. Virgin Islands)  

Broader source: Energy.gov [DOE]

The Virgin Islands Energy Office currently offers rebates to residents for purchasing solar water heaters from local vendors. The program will cover residential, solar water heaters of 120 gallons...

471

TVA Partner Utilities- Energy Right Water Heater Program  

Broader source: Energy.gov [DOE]

The TVA energy right Water Heater Plan promotes the installation of high efficiency water heaters in homes and small businesses. TVA provides a $50 incentive to local power companies for each...

472

TVA Partner Utilities- Energy Right Water Heater Program  

Broader source: Energy.gov [DOE]

The Tennessee Valley Authority (TVA) energy right Water Heater Plan promotes the installation of high efficiency water heaters in homes and small businesses. TVA provides a $50 incentive to local...

473

TVA Partner Utilities- Energy Right' Water Heater Program  

Broader source: Energy.gov [DOE]

The TVA energy right Water Heater Plan promotes the installation of high efficiency water heaters in homes and small businesses. TVA provides a $50 incentive to local power companies for each...

474

Ultra high vacuum heating and rotating specimen stage  

DOE Patents [OSTI]

A heating and rotating specimen stage provides for simultaneous specimen heating and rotating. The stage is ideally suited for operation in ultrahigh vacuum (1{times}10{sup {minus}9} torr or less), but is useful at atmosphere and in pressurized systems as well. A specimen is placed on a specimen holder that is attached to a heater that, in turn, is attached to a top housing. The top housing is rotated relative to a bottom housing and electrically connected thereto by electrically conductive brushes. This stage is made of materials that are compatible with UHV, able to withstand high temperatures, possess low outgassing rates, are gall and seize resistant, and are able to carry substantial electrical loading without overheating. 5 figs.

Coombs, A.W. III

1995-05-02T23:59:59.000Z

475

Evaluation of TANK water heater simulation model as embedded in HWSim  

E-Print Network [OSTI]

flue natural gas storage water heaters. Battelle developedthe water in a storage water heater is cooling off and

Lutz, Jim

2012-01-01T23:59:59.000Z

476

Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet), Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSalesOE0000652Grow YourPerformance AuditPerformance of a Heat

477

UW -Center for Intelligent Materials and Systems 1 1-D Heat Flow Measurement  

E-Print Network [OSTI]

: Calibrate Seebeck Coefficient for TFTC(Thin Film Thermocouples) x y Heater (70°C) Water (19°C) #12;UW ANSYS Simulation Used Data Water Temp. 2 Measured Temp. (Channel 14, 15) Heater size Assumption. Factor 2.258 #12;UW - Center for Intelligent Materials and Systems 3 2-D Heat Flow Measurement x y Heater

Taya, Minoru

478

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

Diagram 1: A Typical Tank Water Heater Source: http://to-unit comparisons of tank versus tankless water heaters.Energy Use MJ/(unit*year) Tank Tankless MJ/(unit*year) Tank

Lu, Alison

2011-01-01T23:59:59.000Z

479

Covered Product Category: Commercial Gas Water Heaters  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including commercial gas water heaters, which are covered by the ENERGY STAR® program. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

480

Heat exchanger design for thermoelectric electricity generation from low temperature flue gas streams .  

E-Print Network [OSTI]

??An air-to-oil heat exchanger was modeled and optimized for use in a system utilizing a thermoelectric generator to convert low grade waste heat in flue… (more)

Latcham, Jacob G. (Jacob Greco)

2009-01-01T23:59:59.000Z

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


481

Water Heaters | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,Save EnergyGlouster,Winside,Warren County Rural EHeaters Jump to:

482

Drill-back studies examine fractured, heated rock  

SciTech Connect (OSTI)

To investigate the effects of heating on the mineralogical, geochemical, and mechanical properties of rock by high-level radioactive waste, cores are being examined from holes penetrating locations where electric heaters simulated the presence of a waste canister, and from holes penetration natural hydrothermal systems. Results to date indicate the localized mobility and deposition of uranium in an open fracture in heated granitic rock, the mobility of U in a breccia zone in an active hydrothermal system in tuff, and the presence of U in relatively high concentration in fracture-lining material in tuff. Mechanical -- property studies indicate that differences in compressional- and shear-wave parameters between heated and less heated rock can be attributed to differences in the density of microcracks. Emphasis has shifted from initial studies of granitic rock at Stripa, Sweden to current investigations of welded tuff at the Nevada Test Site. 7 refs., 8 figs.

Wollenberg, H.A.; Flexser, S.; Myer, L.R.

1990-01-01T23:59:59.000Z

483

Control system analysis for off-peak auxiliary heating of passive solar systems  

SciTech Connect (OSTI)

A computer simulation method is presented for the design of an electrical auxiliary energy system for passive solar heated structures. The system consists of electrical mats buried in the ground underneath the structure. Energy is stored in the ground during utility off-peak hours and released passively to the heated enclosure. An optimal control strategy is used to determine the system design parameters of depth of mat placement and minimum instaled electrical heating capacity. The optimal control applies combinations of fixed duration energy pulses to the heater, which minimize the room temperature error-squared for each day, assuming advance knowledge of the day's weather. Various realizable control schemes are investigated in an attempt to find a system that approaches the performance of the optimal control system.

Murray, H.S.; Melsa, J.L.; Balcomb, J.D.

1980-01-01T23:59:59.000Z

484

Analysis of Potential Energy Saving and CO2 Emission Reduction of Home Appliances and Commercial Equipments in China  

E-Print Network [OSTI]

Multi-connected air condition (heat pump) unit Chiller VL CRefrigerator Heat Pump Water Heater Air Conditioner ElectricHeat Pump Water Heater Standby TV Refrigerator Others* Air

Zhou, Nan

2011-01-01T23:59:59.000Z

485

Radiation Tolerant Programmable Power Supply for the LHC Beam Screen Heaters  

E-Print Network [OSTI]

For the next LHC run, it is required to install 200W of heating capacity per LHC beam screen heater to regenerate the beam screen by desorption of gas trapped on its walls. In the LHC, there are 272 beam screen heaters and the associated electronics limit presently the heating capacity to 25W. Those electronics are, for the most part, installed inside the LHC tunnel and exposed to its radiation environment. This paper describes the development of a new programmable power supply card that will be integrated into the existing LHC radiation tolerant electronic infrastructure used by the cryogenic system. Radiation tests were undertaken to qualify a power switch capable of coping with the 230Vrms grid voltage and an analog signal multiplexer; these components are required respectively for satisfying the higher power requirements and for reducing the overall cost by using a single analog to digital converter to sample all the signals.

Casas, J

2014-01-01T23:59:59.000Z

486

Variably insulating portable heater/cooler  

DOE Patents [OSTI]

A compact vacuum insulation panel comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning "on" and "off" the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls.

Potter, Thomas F. (Denver, CO)

1998-01-01T23:59:59.000Z

487

Variably insulating portable heater/cooler  

DOE Patents [OSTI]

A compact vacuum insulation panel is described comprising a chamber enclosed by two sheets of metal, glass-like spaces disposed in the chamber between the sidewalls, and a high-grade vacuum in the chamber includes apparatus and methods for enabling and disabling, or turning ``on`` and ``off`` the thermal insulating capability of the panel. One type of enabling and disabling apparatus and method includes a metal hydride for releasing hydrogen gas into the chamber in response to heat, and a hydrogen grate between the metal hydride and the chamber for selectively preventing and allowing return of the hydrogen gas to the metal hydride. Another type of enabling and disabling apparatus and method includes a variable emissivity coating on the sheets of metal in which the emissivity is controllably variable by heat or electricity. Still another type of enabling and disabling apparatus and method includes metal-to-metal contact devices that can be actuated to establish or break metal-to-metal heat paths or thermal short circuits between the metal sidewalls. 25 figs.

Potter, T.F.

1998-09-29T23:59:59.000Z

488

Vehicle Technologies Office Merit Review 2014: Electric PCM Assisted Thermal Heating System  

Broader source: Energy.gov [DOE]

Presentation given by Delphi Automotive at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about electric PCM assisted...

489

MEASUREMENTS OF HEAT TRANSFER TO HELIUM II AT ATMOSPHERIC PRESSURE IN A CONFINED GEOMETRY  

E-Print Network [OSTI]

groove and a thermometer (Lake Shore Cryotronics "carbonis measured with a thermometer (of the same type as on thethe heated surface. Thermometer read out and heater control

Warren, R.P.

2011-01-01T23:59:59.000Z

490

How Control Improvements Save Process Heater Fuel  

E-Print Network [OSTI]

such use can be expected. Process Heater Combustion Control Systems The recommended approach today differs only in detail from a combustion control system installed on a process heater in 1946 at Shell Oil Co., Wood River Refinery. In their 1948 paper... Net + 15% Excess Natural Gas 7.18 7.88 9.06 ., (l000 Btu) Refinery Gas 7.21 7.84 9.02 (l600 Btu) Fuel Oil No. 6 7.31 7.75 8.91 (18,000 Btu) Coal 7.56 7.79 8.96 (11,500 Btu) 184 ESL-IE-79-04-20 Proceedings from the First Industrial Energy...

Dukelow, S. G.

1979-01-01T23:59:59.000Z

491

Application of high temperature air heaters to advanced power generation cycles  

SciTech Connect (OSTI)

Recent developments in ceramic composite materials open up the possibility of recuperative air heaters heating air to temperatures well above the feasible with metal tubes. A high temperature air heater (HTAH) has long been recognized as a requirement for the most efficient MHD plants in order to reach high combustor flame temperatures. The application of gas turbines in coal-fired plants of all types has been impeded because of the problems in cleaning exhaust gas sufficiently to avoid damage to the turbine. With a possibility of a HTAH, such plants may become feasible on the basis of air turbine cycles, in which air is compressed and heated in the HTAH before being applied to turbine. The heat exchanger eliminates the need for the hot gas cleanup system. The performance improvement potential of advanced cycles with HTAH application including the air turbine cycle in several variations such as the DOE program on ``Coal-Fired Air Furnace Combined Cycle...,`` variations originated by the authors, and the MHD combined cycle are presented. The status of development of ceramic air heater technology is included.

Thompson, T R [Tennessee Valley Authority, Chattanooga, TN (United States)] [Tennessee Valley Authority, Chattanooga, TN (United States); Boss, W H; Chapman, J N [Tennessee Univ., Tullahoma, TN (United States). Space Inst.] [Tennessee Univ., Tullahoma, TN (United States). Space Inst.

1992-03-01T23:59:59.000Z

492

A performance correlation of horizontal solar heaters  

E-Print Network [OSTI]

A PERFORMANCE CORRELATION OF HORIZONTAL SOLAR HEATERS A Thesis by WILFORD HUGO GOPFFARTH Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1964... Major Subject: Chemical Engineering ABSTRACT The purpose of this work was to determine design parameters for flat plastic covered solar collectors. First, the transmittance ? absorp- tion product as a function of the angle of incidence was determined...

Gopffarth, Wilford Hugo

1964-01-01T23:59:59.000Z

493

First Results of the LCLS Laser-Heater System  

SciTech Connect (OSTI)

The Linac Coherent Light Source (LCLS) is an x-ray Free-Electron Laser (FEL) project that has just achieved its first lasing at 1.5 {angstrom} radiation wavelength. The very bright electron beam required to drive this FEL is susceptible to a microbunching instability in the magnetic bunch compressors that may increase the slice energy spread beyond the FEL tolerance. To control the slice energy spread and to suppress the microbunching instability, a laser heater (LH) system is installed in the LCLS injector area at 135 MeV, right before the RF deflector that is used for the time-resolved electron diagnostics. This unique component is used to add a small level of intrinsic energy spread to the electron beam in order to Landau damp the microbunching instability before it potentially breaks up the high brightness electron beam. The system was fully installed and tested in the fall of 2008, and effects of heating on the electron beam and the x-ray FEL were studied during the 2009 commissioning period. The laser heater system is composed of a 4-dipole chicane; a 9-period, planar, permanent-magnet, adjustable-gap undulator at the center of the chicane; one OTR screen on each side of the undulator for electron/laser spatial alignment; and an IR laser (up to 15-MW power) which co-propagates with the electron beam inside the undulator generating a 758-nm energy modulation along the bunch. The final two dipoles of the 4-dipole chicane time-smear this modulation leaving only a thermal-like intrinsic energy spread within the bunch. Table 1 lists the main parameters for this system. The very bright electron beam required for an x-ray free-electron laser (FEL), such as the LCLS, is susceptible to a microbunching instability in the magnetic bunch compressors, prior to the FEL undulator. The uncorrelated electron energy spread in the LCLS can be increased by an order of magnitude to provide strong Landau damping against the instability without degrading the FEL performance. To this end, a 'laser-heater' system has been installed in the LCLS injector, which modulates the energy of a 135-MeV electron bunch with an IR laser beam in a short undulator, enclosed within a four-dipole chicane. The last half of the chicane time-smears the energy modulation leaving an effective thermal energy spread increase. We present the first commissioning results of this system, its operational issues, its impact on the microbunching instability, and finally its effect on the FEL performance.

Emma, P; Boyce, R.F.; Brachmann, A.; Carr, R.; Decker, F.-J.; Ding, Y.; Dowell, D.; Edstrom, S.; Frisch, J.; Gilevich, S.; Hays, G.; Hering, Ph.; Huang, Z.; Iverson, R.; Levashov, Y.; Loos, H.; Miahnahri, A.; Nuhn, H.-D.; Poling, B.; Ratner, D.; Spampinati, S.; /SLAC

2011-12-16T23:59:59.000Z

494

Heat wave contributes to higher summer electricity demand in the Northeast  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2M HILL SecretaryHazmat work opensHeatHeatHeat wave

495

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network [OSTI]

Distillation column Steam turbine Condenser load. CalculatesHeat Trimmer Dist. Condenser Turbine Steam Leaks LP TurbineRH ll~ PRESSURE STEAM FLOW INTO CONDENSER *STC D12 PRE! SURE

Dayan, J.

2011-01-01T23:59:59.000Z

496

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network [OSTI]

heat available at night) Gas Turbine Work Table 3.2. StreamTurbine (small turbine) Gas Turbine Parasitic Power BFW PumpHours) Generator Terminals Gas Turbine Parasitic Power BFW

Dayan, J.

2011-01-01T23:59:59.000Z

497

Piedmont EMC- Solar Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

Piedmont Electric Membership Corporation is offering a $500 rebate to its residential members who install solar water heaters on their homes. The utility recommends but does not require the system...

498

Automated robotic equipment for ultrasonic inspection of pressurizer heater wells  

DOE Patents [OSTI]

A robotic device for remotely inspecting pressurizer heater wells is provided which has the advantages of quickly, precisely, and reliably acquiring data at reasonable cost while also reducing radiation exposure of an operator. The device comprises a prober assembly including a probe which enters a heater well, gathers data regarding the condition of the heater well and transmits a signal carrying that data; a mounting device for mounting the probe assembly at the opening of the heater well so that the probe can enter the heater well; a first motor mounted on the mounting device for providing movement of the probe assembly in an axial direction; and a second motor mounted on the mounting device for providing rotation of the probe assembly. This arrangement enables full inspection of the heater well to be carried out.

Nachbar, Henry D. (Ballston Lake, NY); DeRossi, Raymond S. (Amsterdam, NY); Mullins, Lawrence E. (Middle Grove, NY)

1993-01-01T23:59:59.000Z

499

Effect of Fuel Wobbe Number on Pollutant Emissions from Advanced Technology Residential Water Heaters: Results of Controlled Experiments  

E-Print Network [OSTI]

Emissions from Residential Water Heaters Table of Contents46 Table 10. Storage water heaters evaluated experimentally50 Table 11. Published information for water heater

Rapp, VH

2014-01-01T23:59:59.000Z

500

Feasibility of Using Measurements of Internal Components of Tankless Water Heaters for Field Monitoring of Energy and Water Use  

E-Print Network [OSTI]

Test Procedures for Water Heaters; Final Rule," FederalTesting of Tankless Gas Water Heater Performance," DavisInc. , "T-K2 Instantaneous Water Heater Installation Manual

Lutz, Jim

2008-01-01T23:59:59.000Z