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Note: This page contains sample records for the topic "heaters solar water" 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

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...

2

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

3

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...

4

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...

5

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...

6

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

7

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...

8

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...

9

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

10

Diagnosis of Solar Water Heaters Using Solar Storage Tank Surface Temperature Data: Preprint  

SciTech Connect (OSTI)

Study of solar water heaters by using surface temperature data of solar storage tanks to diagnose proper operations.

Burch, J.; Magnuson, L.; Barker, G.; Bullwinkel, M.

2009-04-01T23:59:59.000Z

11

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...

12

New Home Buyer Solar Water Heater Trade-Off Study  

SciTech Connect (OSTI)

This report details the results of a research conducted in 1998 and 1999 and outlines a marketing deployment plan designed for businesses interested in marketing solar water heaters in the new home industry.

Symmetrics Marketing Corporation

1999-08-18T23:59:59.000Z

13

Marshall Municipal Utilities- Solar Thermal Water Heater Rebate Program  

Broader source: Energy.gov [DOE]

Marshall Municipal Utilities (MMU) offers residential customers rebates for installing a ENERGY STAR Solar Thermal Water Heater. Rebates are based on the size of the system; MMU offers $20 per...

14

SMUD- Solar Water Heater Rebate Program  

Broader source: Energy.gov [DOE]

The Sacramento Municipal Utility District's (SMUD) Solar Domestic Hot Water Program provides rebates and/or loan financing to customers who install solar water heating systems. The amount of the...

15

Clark Public Utilities- Solar Water Heater Rebate  

Broader source: Energy.gov [DOE]

Clark Public Utilities offers a rebate of $500 to customers who install a solar water heating system. Customers must own the residence or business where the solar water heating system is installed...

16

Solar Water Heater Roadmap Leads Path to Market Expansion (Fact Sheet)  

SciTech Connect (OSTI)

Innovative strategy to reduce installed cost of solar water heater systems can rival conventional natural gas water heaters in the marketplace.

Not Available

2012-09-01T23:59:59.000Z

17

Solar Hot Water Heater Industry in Barbados  

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 from the GridwiseSite Management GuideReliability |WindowsSolarSolarSolar Hot Water

18

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

19

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

20

Mountain Association for Community Economic Development- Solar Water Heater Loan Program  

Broader source: Energy.gov [DOE]

The Kentucky Solar Partnership (KSP) and the Mountain Association for Community Economic Development (MACED) partner to offer low interest loans for the installation of solar water heaters. Loans...

Note: This page contains sample records for the topic "heaters solar water" 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

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

22

Solar 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 Solar PowerstoriesNrelPartnerTypePonsa,Home Aimeebailey's pictureWiki Page

23

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...

24

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

25

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...

26

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

27

Realistic Hot Water Draw Specification for Rating Solar Water Heaters: Preprint  

SciTech Connect (OSTI)

In the United States, annual performance ratings for solar water heaters are simulated, using TMY weather and specified water draw. A more-realistic ratings draw is proposed that eliminates most bias by improving mains inlet temperature and by specifying realistic hot water use. This paper outlines the current and the proposed draws and estimates typical ratings changes from draw specification changes for typical systems in four cities.

Burch, J.

2012-06-01T23:59:59.000Z

28

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.

29

New Braunfels Utilities- Residential Solar Water Heater Rebate Program  

Broader source: Energy.gov [DOE]

New Braunfels Utilities offers a rebate for residential customers who purchase and install solar water heating systems on eligible homes. A rebate of the equivalent of $0.265 per kWh is available...

30

Study Design And Realization Of Solar Water Heater  

SciTech Connect (OSTI)

Solar is one of the most easily exploitable energy, it is moreover inexhaustible. His applications are many and are varied. The heating of the domestic water is one of the most immediate, simplest and also of most widespread exploitation of the solar energy. Algeria, from its geographical situation, it deposits one of the largest high sun surface expositions in the world. The exposition duration of the almost territory exceeds 2000 hours annually and can reach the 3900 hours (high plateaus and Sahara). By knowing the daily energy received by 1 m{sup 2} of a horizontal surface of the solar thermal panel is nearly around 1700 KWh/m{sup 2} a year in the north and 2263 KWh/m{sup 2} a year in the south of the country, we release the most important and strategic place of the solar technologies in the present and in the future for Algeria. This work consists to study, conceive and manufacture solar water heating with the available local materials so, this type of the energy will be profitable for all, particularly the poor countries. If we consider the illumination duration of the panel around 6 hours a day, the water heat panel manufactured in our laboratory produce an equivalent energy of 11.615 KWh a day so, 4239 KWh a year. These values of energy can be easily increased with performing the panel manufacture.

Lounis, M. [LAAR Laboratory-Physics Department-USTOMB 31000 Oran (Algeria); Boudjemaa, F.; Akil, S. Kouider [Genie Climatic Department-CUKM 44000-Khemis Miliana (Algeria)

2011-01-17T23:59:59.000Z

31

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

32

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

33

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

34

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

35

Solar Water Heaters and the Economy | 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 of Energy U.S. DepartmentCommitmentGovernmentSmartDay 7Solar panels

36

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

37

Revisions to the SRCC Rating Process for Solar Water Heaters: Preprint  

SciTech Connect (OSTI)

In the United States, annual performance ratings for solar water heaters are computed with component-based simulation models driven by typical meteorological year weather and specified water draw. Changes in the process are being implemented to enhance credibility through increased transparency and accuracy. Changes to the process include using a graphical rather than text-based model-building tool, performing analytical tests on all components and systems, checking energy balances on every component, loop, and system at every time step, comparing the results to detect outliers and potential errors, and documenting the modeling process in detail. Examples of changes in ratings are shown, along with analytical and comparative testing results.

Burch, J.; Huggins, J.; Long, S.; Thornton, J.

2012-06-01T23:59:59.000Z

38

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

39

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

40

National Solar Water Heater Workshop Present at DOE Region V meeting for managers of State Energy Extension Service and State Energy Conservation Plan, March 18-19, 1981  

SciTech Connect (OSTI)

After a brief description of the National Solar Water Heater Workshop and some comments by users of the solar water heater, the hardware supplier handbook is presented. The performance expected of a hardware supplier is described, solar system components and their specifications are listed, and information is provided to assist the hardware supplier in obtaining necessary materials. (LEW)

Mumma, S.A.; Marinello, M.G.

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters solar water" 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

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

42

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

43

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

44

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

45

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

46

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

47

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

48

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

49

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

50

2014-10-14 Issuance: Test Procedures and Energy Conservation Standards for Residential Solar Water Heaters; Request for Information  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register request for information regarding test procedures and energy conservation standards for residential solar water heaters, as issued by the Deputy Assistant Secretary for Energy Efficiency on October 14, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

51

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

52

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

53

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)...

54

Optimal arrangement of structural and functional parts in a flat plate integrated collector storage solar water heater (ICSSWH)  

SciTech Connect (OSTI)

Parameters that affect the efficiency of a flat plate integrated collector storage solar water heater (ICSSWH) are examined experimentally and numerically. This specific ICSSWH contains water that is not refreshed. The service water is heated indirectly through an immersed heat exchanger (HE) in contact with the front and back major surfaces. A forced convection mechanism consisting of a pump that brings the storage water into motion by recirculation is used for heat transfer intensification. The two major (front and back) flat plate surfaces need to be well interconnected so that they are not deformed by the weight of the contained water and the exerted high-pressure. Two main factors that influence the performance are optimized: the position and size of the recirculation ports and the arrangement and size of the interconnecting fins. Both factors are explored to maximize the velocity flow field of the recirculated storage water. Consequently, the heat transfer rate between the two water circuits is maintained at high levels. Various 3D computational fluid dynamics (CFD) models are developed using the FLUENT package. An experimental model, made by Plexiglas, is used for the visualization of the flow field. Flow velocities are measured using a laser doppler velocimetry (LDV) system. The optimal arrangement increases the mean storage water velocity by 65% and raises the outlet temperatures up to 8 C. (author)

Gertzos, K.P.; Caouris, Y.G. [Department of Mechanical Engineering and Aeronautics, University of Patras, 265 00 Patras (Greece)

2008-04-15T23:59:59.000Z

55

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

56

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

57

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...

58

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

59

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

60

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

Note: This page contains sample records for the topic "heaters solar water" 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

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

62

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...

63

Estimating the Cost and Energy Efficiency of a Solar Water Heater |  

Office of Environmental Management (EM)

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) " ,"ClickPipelinesProvedDecember 2005DepartmentDecember U.S. Department of EnergyEqualHeaters |

64

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

65

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

66

Pipe Freeze Prevention for Passive Solar Water Heaters Using a Room-Air Natural Convection Loop: Preprint  

SciTech Connect (OSTI)

Conference paper regarding research in the use of freeze prevention for passive solar domestic water heating systems.

Burch, J.; Heater, M.; Brandemuhl, M.; Krarti, M.

2006-05-01T23:59:59.000Z

67

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

68

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

69

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

70

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,...

71

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

72

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,...

73

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...

74

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

75

Northward Market Extension for Passive Solar Water Heaters by Using Pipe Freeze Protection with Freeze-Tolerant Piping: Preprint  

SciTech Connect (OSTI)

Conference paper regarding research in freeze-protection methods that could extend market acceptance for passive solar domestic water heating systems in more northern climates if the U.S.

Burch, J.; Heater, M.; Brandemuhl, M.; Krarti, M.

2006-05-01T23:59:59.000Z

76

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

77

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

78

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

79

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

80

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 solar water" 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

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

82

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

83

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

84

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

85

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

86

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...

87

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...

88

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...

89

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...

90

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.

91

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

92

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

93

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

94

Green Systems Solar Hot Water  

E-Print Network [OSTI]

Green Systems Solar Hot Water Heating the Building Co-generation: Heat Recovery System: Solar panels not enough Generates heat energy Captures heat from generator and transfers it to water Stores Thermal Panels (Trex enclosure) Hot Water Storage Tank (TS-5; basement) Hot Water Heaters (HW-1

Schladow, S. Geoffrey

95

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:

96

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

97

Columbia Water and Light- Solar Rebates  

Broader source: Energy.gov [DOE]

Columbia Water and Light (CWL) offers rebates to its commercial and residential customers for the purchase of solar water heaters and solar photovoltaic systems. These rebates are available for...

98

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

99

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

100

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

Note: This page contains sample records for the topic "heaters solar water" 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

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

102

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

103

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.

104

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

105

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

106

Evaluation of TANK water heater simulation model as embedded in HWSim  

E-Print Network [OSTI]

LBNL # Evaluation of TANK water heater simulation model asEvaluation of TANK water heater simulation model as embeddedwater to be drawn from a water heater to meet a schedule of

Lutz, Jim

2012-01-01T23:59:59.000Z

107

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

E-Print Network [OSTI]

associated with the EU water heater test procedure loadEU test procedure for water heaters. Load No. Delivered Max.period to allow the water heater to adjust completely to

Lutz, Jim

2012-01-01T23:59:59.000Z

108

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

E-Print Network [OSTI]

furnaces and storage water heaters, finds that installing aAs shown in Table 2, storage water heaters in single-familya gas furnace and a gas storage water heater. This market is

Lekov, Alex B.

2010-01-01T23:59:59.000Z

109

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

E-Print Network [OSTI]

furnaces and storage water heaters, finds that installing aAs shown in Table 2, storage water heaters in single-familya gas furnace and a gas storage water heater. This market is

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

2010-01-01T23:59:59.000Z

110

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

111

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

112

Development of solar air heaters & thermal energy storage system for drying applications in food processing industries.  

E-Print Network [OSTI]

??In the present work, the author has designed and developed all types of solar air heaters called porous and nonporous collectors. The developed solar air… (more)

Sreekumar, A

2007-01-01T23:59:59.000Z

113

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

E-Print Network [OSTI]

appliance_standards/residential/water_ pool_heaters_prelim_Star (2008). Energy star residential water heaters: Finalefficiency improvements for residential gas furnaces in the

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

2010-01-01T23:59:59.000Z

114

Evaluation of TANK water heater simulation model as embedded in HWSim  

E-Print Network [OSTI]

this scheme for operating TANK with HWSim is successful.LBNL # Evaluation of TANK water heater simulation model asCalifornia. Evaluation of TANK water heater simulation model

Lutz, Jim

2012-01-01T23:59:59.000Z

115

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

116

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

117

Sacramento Ordinance to Waive Fees for Solar Hot Water  

Broader source: Energy.gov [DOE]

An ordinance suspending for the calendar years 2007-2009 all fees related to installations of solar water heaters on existing residences.

118

NV Energy (Northern Nevada)- Solar Hot Water Incentive Program  

Broader source: Energy.gov [DOE]

NV Energy is providing an incentive for its residential customers, small commercial, nonprofit, school and other public customers to install solar water heaters on their homes and facilities. ...

119

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...

120

Monitoring SERC Technologies: On-Demand Tankless Water Heaters  

Broader source: Energy.gov [DOE]

A webinar by Ethan MacCormick, VP for Services to Energy Businesses at Performance Systems Development, about On-Demand Tankless Water Heaters and how to properly monitor the installation.

Note: This page contains sample records for the topic "heaters solar water" 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

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...

122

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

123

Commercial Gas Water Heaters, Purchasing Specifications for Energy-Efficient Products (Fact Sheet)  

SciTech Connect (OSTI)

Performance and purchasing specifications for commercial gas water heaters under the FEMP-designated product program.

Not Available

2010-09-01T23:59:59.000Z

124

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...

125

CPS Energy- Solar Hot Water Rebate Program  

Broader source: Energy.gov [DOE]

As part of a larger program designed to reduce electricity demand within its service territory, CPS Energy now offers rebates for solar water heaters to its customers. In general, any CPS Energy...

126

Austin Energy- Solar Water Heating Rebate  

Broader source: Energy.gov [DOE]

Austin Energy offers its residential, commercial, and municipal customers up front rebates or a low interest loan for the purchase and installation of solar hot water heaters. Because the program...

127

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

128

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

129

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

130

Solar Water Heating: What's Hot and What's Not  

E-Print Network [OSTI]

A handful of electric utilities in the United States now pay incentives to their customers to install solar water heaters or are developing programs to do so. The solar water heater incentives are part of a broader utility demand-side management...

Stein, J.

131

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

132

Effect of Fuel Wobbe Number on Pollutant Emissions from Advanced Technology Residential Water Heaters: Results of Controlled Experiments  

E-Print Network [OSTI]

46 Table 10. Storage water heaters evaluated experimentallyfor interchangeability experiments for storage water heaterfor experiments with storage water heater AW01. 53

Rapp, VH

2014-01-01T23:59:59.000Z

133

Lumbee River EMC- Solar Water Heating Loan Program (North Carolina)  

Broader source: Energy.gov [DOE]

Lumbee River EMC is offering 1.50% loans to residential customers for the installation of solar water heaters on their homes. To qualify, the systems must be certified OG-300 by the Solar Ratings...

134

Lumbee River EMC- Solar Water Heating Rebate Program (North Carolina)  

Broader source: Energy.gov [DOE]

Lumbee River EMC is offering $850 rebates to residential customers who install solar water heaters on their homes. To qualify, the systems must be certified OG-300 by the Solar Ratings and...

135

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

136

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

137

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.

138

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

139

Covered Product Category: Residential Gas Storage Water Heaters  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance across a variety of product categories, including gas storage 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.

140

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

Note: This page contains sample records for the topic "heaters solar water" 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

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

142

Whole-Home Gas Tankless Water Heaters, Purchasing Specifications for Energy-Efficient Products (Fact Sheet)  

SciTech Connect (OSTI)

Performance and purchasing specifications for whole-home gas water heaters under the FEMP-designated product program.

Not Available

2010-06-01T23:59:59.000Z

143

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

144

DESIGN AND DEVELOPMENT TESTING OF AN IMPROVED (1 HIGH-EFFICIENCY WATER HEATER  

E-Print Network [OSTI]

#12;DESIGN AND DEVELOPMENT TESTING OF AN IMPROVED (1 HIGH-EFFICIENCY WATER HEATER (2} (3) (21 icense in and to any copyright covering the drticle. This paper describes a high-efficiency water heater which uses a design approach quite different from the conventional center-flue water heater. While high

Oak Ridge National Laboratory

145

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

146

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

147

Selecting a New Water Heater You have a lot to consider when selecting a  

E-Print Network [OSTI]

the water heater's annual operation costs but also its size and energy efficiency. Natural gas, oil or tank water heater operates by releasing hot water from the top of the tank when the hot water tap is turned on. The hot water is released into the hot water line. As the hot water leaves the tank, cold

148

Model for Aggregated Water Heater Load Using Dynamic Bayesian Networks  

SciTech Connect (OSTI)

The transition to the new generation power grid, or “smart grid”, requires novel ways of using and analyzing data collected from the grid infrastructure. Fundamental functionalities like demand response (DR), that the smart grid needs, rely heavily on the ability of the energy providers and distributors to forecast the load behavior of appliances under different DR strategies. This paper presents a new model of aggregated water heater load, based on dynamic Bayesian networks (DBNs). The model has been validated against simulated data from an open source distribution simulation software (GridLAB-D). The results presented in this paper demonstrate that the DBN model accurately tracks the load profile curves of aggregated water heaters under different testing scenarios.

Vlachopoulou, Maria; Chin, George; Fuller, Jason C.; Lu, Shuai; Kalsi, Karanjit

2012-07-19T23:59:59.000Z

149

Dehumidifying water heater. Technical progress report  

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

150

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

151

Effect of Fuel Wobbe Number on Pollutant Emissions from Advanced Technology Residential Water Heaters: Results of Controlled Experiments  

E-Print Network [OSTI]

Water Heaters 7.0 Glossary of Abbreviations AGA American Gas Association ANSI American National Standards

Rapp, VH

2014-01-01T23:59:59.000Z

152

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

153

Storage Water Heaters | 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 UsageAUDITVehicles »ExchangeDepartmentResolveFuture |Energy Steps toStorage Water

154

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

155

Tankless or Demand-Type Water Heaters | 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 UsageAUDITVehiclesTankless or Demand-Type Water Heaters Tankless or Demand-Type Water

156

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

E-Print Network [OSTI]

of Solar Domestic Hot Water Heaters in California,n inBradley, J.M. , Water Heater Construe on. u AdministrationDevelopment of a erant Solar Water Heater Using Crosslinked

Mertol, A.

2013-01-01T23:59:59.000Z

157

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

158

Entergy New Orleans- Residential Solar Water Heating Program (Louisiana)  

Broader source: Energy.gov [DOE]

Entergy New Orleans offers a Solar Water Heater Rebate pilot program designed to help residential customers make energy efficiency improvements. Rebates will be offered on a first-come, first...

159

Texas Gas Service- Residential Solar Water Heating Rebate Program (Texas)  

Broader source: Energy.gov [DOE]

Texas Gas Service offers a flat rebate of $750 for its residential customers within the Austin and Sunset Valley city limits for the installation and purchase of a new solar water heater with...

160

NV Energy (Southern Nevada)- Solar Hot Water Incentive Program  

Broader source: Energy.gov [DOE]

NV Energy is providing an incentive for its residential customers to install solar water heaters on their homes. As of July 26, 2013, NV Energy electric customers in Southern Nevada who own their...

Note: This page contains sample records for the topic "heaters solar water" 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

Expansion and Improvement of Solar Water Heating Technology in...  

Open Energy Info (EERE)

development of high-quality and attractive-looking model designs for integrating solar water heaters (SWH) into buildings in China. Coordinates: 39.90601, 116.387909 Show...

162

Can carbon finance contribute to the promotion of solar water heating in Bolivia?   

E-Print Network [OSTI]

Residential applications of renewable energy can contribute to reducing greenhouse gas emissions while improving the quality of life for households. Thermosiphon solar water heaters are passive systems using solar energy to supply hot water...

Hayek, Niklas

2011-11-24T23:59:59.000Z

163

Assessing the Energy Savings of Tankless Water Heater Retrofits in Public Housing  

SciTech Connect (OSTI)

This report describes the methodology, analysis, and findings from a case study of a 110 unit retrofit of gas tankless water heaters in a hot/humid climate in Alachua County, Florida. The housing units had their gas-fired tank type water heaters replaced with gas-fired tankless water heaters as part of a federal program that targeted reduced energy use in public housing.

Ries, R.; Walters, R.; Dwiantoro, D.

2013-01-01T23:59:59.000Z

164

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

165

Buildings Energy Data Book: 5.4 Water Heaters  

Buildings Energy Data Book [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 Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural122 Water Heater Stock

166

Buildings Energy Data Book: 5.4 Water Heaters  

Buildings Energy Data Book [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 Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural122 Water Heater Stock3

167

Buildings Energy Data Book: 5.4 Water Heaters  

Buildings Energy Data Book [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 Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural122 Water Heater Stock34

168

Buildings Energy Data Book: 5.4 Water Heaters  

Buildings Energy Data Book [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 Rank EERE: Alternative Fuels Data CenterEnergyAuthorization for(EV) Road UserNatural122 Water Heater Stock345

169

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

170

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

E-Print Network [OSTI]

Experiences of residential consumers and utilities. OakStar (2008). Energy Star Residential Water Heaters: Finalefficiency improvements for residential gas furnaces in the

Lekov, Alex B.

2010-01-01T23:59:59.000Z

171

Sustainable Energy Resources for Consumers (SERC)- On-Demand Tankless Water Heaters  

Broader source: Energy.gov [DOE]

This presentation, aimed at Sustainable Energy Resources for Consumers (SERC) grantees, provides information on Monitoring Checklists for the installation of On-Demand Tankless Water Heaters.

172

JANUARY 2008 SOLAR DESALINATION OF BRACKISH WATER USING MEMBRANE  

E-Print Network [OSTI]

solar collectors as water heaters and to determine the process parameters of the membrane distillationJANUARY 2008 SOLAR DESALINATION OF BRACKISH WATER USING MEMBRANE DISTILLATION PROCESS WRRI Technical Completion Report No. 342 Shuguang Deng NEW MEXICO WATER RESOURCES RESEARCH INSTITUTE MSC 3167 New

Johnson, Eric E.

173

Solar Water Heaters | 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 UsageAUDITVehicles »ExchangeDepartmentResolveFuture | DepartmentSo Simple It

174

Solar 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 Inspector GeneralDepartmentAUDIT REPORTOpenWende New EnergyAnatoliaSciraShenhuaWindPowerSohamBG JumppoolJump

175

Solar Water Heater Basics | 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) "of EnergyEnergyENERGYWomenthe House Committee on Energy andDepartment ofAnShare yourA NewGrowthIllustration

176

Tankless water heaters fill the bill at fast-food restaurants  

SciTech Connect (OSTI)

This article explains why Kentucky Fried Chicken has installed a PH-24 water heater. The tankless water heater meets the restaurant's criteria for space spacing, flow rates, certification and availability, and money saving efficiency. This article describes the system and its advantages.

Not Available

1988-02-01T23:59:59.000Z

177

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

178

Impact of Pilot Light Modeling on the Predicted Annual Performance of Residential Gas Water Heaters: Preprint  

SciTech Connect (OSTI)

Modeling residential water heaters with dynamic simulation models can provide accurate estimates of their annual energy consumption, if the units? characteristics and use conditions are known. Most gas storage water heaters (GSWHs) include a standing pilot light. It is generally assumed that the pilot light energy will help make up standby losses and have no impact on the predicted annual energy consumption. However, that is not always the case. The gas input rate and conversion efficiency of a pilot light for a GSWH were determined from laboratory data. The data were used in simulations of a typical GSWH with and without a pilot light, for two cases: 1) the GSWH is used alone; and 2) the GSWH is the second tank in a solar water heating (SWH) system. The sensitivity of wasted pilot light energy to annual hot water use, climate, and installation location was examined. The GSWH used alone in unconditioned space in a hot climate had a slight increase in energy consumption. The GSWH with a pilot light used as a backup to an SWH used up to 80% more auxiliary energy than one without in hot, sunny locations, from increased tank losses.

Maguire, J.; Burch, J.

2013-08-01T23:59:59.000Z

179

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

180

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

Note: This page contains sample records for the topic "heaters solar water" 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

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.

182

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

183

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

184

An Analysis Method for Operations of Hot Water Heaters by Artificial Neural Networks  

E-Print Network [OSTI]

Authors tried to apply an Artificial Neural Network (ANN) to estimation of state of building systems. The systems used in this study were gas combustion water heaters. Empirical equations to estimate gas consumption from measureble properies...

Yamaha, M.; Takahashi, M.

2004-01-01T23:59:59.000Z

185

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...

186

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...

187

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

188

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

189

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

190

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

191

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

E-Print Network [OSTI]

unit*year) Heavy Metals to Water Heavy Metals to Water mg NiMatter Emissions (Water) Heavy Metals mg Hg/20 /unit*yearMatter Mg/year Emissions (Water) Heavy Metals Gg Hg/20 /year

Lu, Alison

2011-01-01T23:59:59.000Z

192

Solar water heating technical support. Technical report for November 1997--April 1998 and final report  

SciTech Connect (OSTI)

This progress report covers the time period November 1, 1997 through April 30, 1998, and also summarizes the project as the final report. The topics of the report include certification of solar collectors for water heating systems, modeling and testing of solar collectors and gas water heater backup systems, ratings of collectors for specific climates, and solar pool heating systems.

Huggins, J.

1998-10-01T23:59:59.000Z

193

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

194

Feasibility of Using Measurements of Internal Components ofTankless Water Heaters for Field Monitoring of Energy and Water Use  

SciTech Connect (OSTI)

The objective of this study was to determine if it was feasible to collect information regarding energy use and hot water delivery from tankless gas water heaters using the sensors and controls built into the water heaters. This could then be used to determine the water heater efficiency ? the ratio of energy out (hot water delivered) to energy in (energy in the gas) in actual residential installations. The goal was to be as unobtrusive as possible, and to avoid invalidating warranties or exposing researchers to liability issues. If feasible this approach would reduce the costs of instrumentation.This paper describes the limited field and laboratory investigations to determine if using the sensors and controls built into tankless water heaters is feasible for field monitoring.It was more complicated to use the existing gas flow, water and temperature sensors than was anticipated. To get the signals from the existing sensors and controls is difficult and may involve making changes that would invalidate manufacturer warrantees. The procedures and methods for using signals from the existing gas valves, water flow meters and temperature sensors will vary by model. To be able to monitor different models and brands would require detailed information about each model and brand.Based on these findings, we believe that for field monitoring projects it would be easier, quicker and safer to connect external meters to measure the same parameters rather than using the sensors and controls built into tankless water heaters.

Lutz, Jim; Biermayer, Peter

2008-04-17T23:59:59.000Z

195

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

196

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

197

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

198

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

E-Print Network [OSTI]

consumer/your_home/water_ heating/index.cfm/mytopic=12980heating is a large source of energy use in California homes.heating is the third largest source of energy use in homes [

Lu, Alison

2011-01-01T23:59:59.000Z

199

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

200

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

Note: This page contains sample records for the topic "heaters solar water" 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

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

202

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

203

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

204

Covered Product Category: Residential Whole-Home Gas Tankless Water Heaters  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance across a variety of product categories, including whole-home gas tankless 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.

205

Research and development of a high efficiency gas-fired water heater. Volume 2. Task reports  

SciTech Connect (OSTI)

Design and development of a cost-effective high efficiency gas-fired water heater to attain a service efficiency of 70% (including the effect of exfiltration) and a service efficiency of 78% (excluding exfiltration) for a 75 GPD draw at a 90/sup 0/F temperature rise, with a stored water to conditioned air temperature difference of 80/sup 0/F, are described in detail. Based on concept evaluation, a non-powered natural draft water heater was chosen as the most cost-effective design to develop. The projected installed cost is $374 compared to $200 for a conventional unit. When the project water heater is compared to a conventional unit, it has a payback of 3.7 years and life cycle savings of $350 to the consumer. A prototype water heater was designed, constructed, and tested. When operated with sealed combustion, the unit has a service efficiency of 66.4% (including the effect of exfiltration) below a burner input of 32,000 Btu/h. In the open combustion configuration, the unit operated at a measured efficiency of 66.4% Btu/h (excluding exfiltration). This compares with a service efficiency of 51.3% for a conventional water heater and 61% for a conventional high efficiency unit capable of meeting ASHRAE 90-75. Operational tests showed the unit performed well with no evidence of stacking or hot spots. It met or exceeded all capacity or usage tests specified in the program test plan and met all emission goals. Future work will concentrate on designing, building, and testing pre-production units. It is anticipated that both sealed combustion and open draft models will be pursued.

Vasilakis, A.D.; Pearson, J.F.; Gerstmann, J.

1980-01-01T23:59:59.000Z

206

Low-Cost Solar Water Heating Research and Development Roadmap  

SciTech Connect (OSTI)

The market environment for solar water heating technology has changed substantially with the successful introduction of heat pump water heaters (HPWHs). The addition of this energy-efficient technology to the market increases direct competition with solar water heaters (SWHs) for available energy savings. It is therefore essential to understand which segment of the market is best suited for HPWHs and focus the development of innovative, low-cost SWHs in the market segment where the largest opportunities exist. To evaluate cost and performance tradeoffs between high performance hot water heating systems, annual energy simulations were run using the program, TRNSYS, and analysis was performed to compare the energy savings associated with HPWH and SWH technologies to conventional methods of water heating.

Hudon, K.; Merrigan, T.; Burch, J.; Maguire, J.

2012-08-01T23:59:59.000Z

207

A Simple Method to Continuous Measurement of Energy Consumption of Tank Less Gas Water Heaters for Commercial Buildings  

E-Print Network [OSTI]

energy consumptions of hot water supply in restaurants or residential houses are large amount, guidelines for optimal design are not presented. measurements of energy consumption of tank less gas water heaters very difficult unless gas flow meters...

Yamaha, M.; Fujita, M.; Miyoshi, T.

2006-01-01T23:59:59.000Z

208

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

209

New Mexico Water Resources Research Institute, New Mexico State University http://wrri.nmsu.edu Solar Desalination of Brackish Water Using  

E-Print Network [OSTI]

It was found that the solar water heater could increase the brackish water temperature to above 170 F duringNew Mexico Water Resources Research Institute, New Mexico State University http://wrri.nmsu.edu Solar Desalination of Brackish Water Using Membrane Distillation Process Shuguang Deng, NMSU

Johnson, Eric E.

210

Hot water tank for use with a combination of solar energy and heat-pump desuperheating  

DOE Patents [OSTI]

A water heater or system is described which includes a hot water tank having disposed therein a movable baffle to function as a barrier between the incoming volume of cold water entering the tank and the volume of heated water entering the tank which is heated by the circulation of the cold water through a solar collector and/or a desuperheater of a heat pump so as to optimize the manner in which heat is imparted to the water in accordance to the demand on the water heater or system. A supplemental heater is also provided and it is connected so as to supplement the heating of the water in the event that the solar collector and/or desuperheater cannot impart all of the desired heat input into the water.

Andrews, J.W.

1980-06-25T23:59:59.000Z

211

Hot water tank for use with a combination of solar energy and heat-pump desuperheating  

DOE Patents [OSTI]

A water heater or system which includes a hot water tank having disposed therein a movable baffle to function as a barrier between the incoming volume of cold water entering the tank and the volume of heated water entering the tank which is heated by the circulation of the cold water through a solar collector and/or a desuperheater of a heat pump so as to optimize the manner in which heat is imparted to the water in accordance to the demand on the water heater or system. A supplemental heater is also provided and it is connected so as to supplement the heating of the water in the event that the solar collector and/or desuperheater cannot impart all of the desired heat input into the water.

Andrews, John W. (Sag Harbor, NY)

1983-06-28T23:59:59.000Z

212

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

213

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

E-Print Network [OSTI]

air source to be added Discharge Includes: Source energy multiplier Distribution losses Smart controls Wasted water Solar Heat pump

Lutz, Jim

2012-01-01T23:59:59.000Z

214

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,...

215

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

216

List of Water Heaters Incentives | 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 Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place:KeystoneSolarList ofPassiveMachine Controls Incentives

217

JEA- Solar Incentive Program  

Broader source: Energy.gov [DOE]

The JEA Solar Incentive Program provides rebates to JEA's residential customers who install new and retrofit solar hot water heaters on their homes. The rebate is worth $800 for new solar thermal...

218

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

219

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

220

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

Note: This page contains sample records for the topic "heaters solar water" 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

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

222

Which Water Heater Is Right for You? | 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 UsageAUDITVehiclesTankless or Demand-TypeWelcome to Energy.gov/Data WelcomeWhich Water

223

The impact of water flow configuration on crystallisation in LiBr/H2O absorption water heater  

SciTech Connect (OSTI)

Lithium Bromide (LiBr) strong solution entering the absorber tends to crystallise when the absorber temperature is increased for a fixed evaporating pressure. This is considered the key technical barrier for the development of a LiBr absorption heat pump water heater. There are several approaches to avoid the crystallisation problem, such as chemical crystallisation inhibitors, heat and mass transfer enhancement and thermodynamic cycle modification. This paper investigates and compares two flow configurations of LiBr absorption heat pump water heater to evaluate the allowable operating conditions for each. The simulation results indicated that introducing the process water through the absorber first results in lower absorber temperature and hence less tendency for crystallisation.

Wang, Kai [ORNL; Abdelaziz, Omar [ORNL; Vineyard, Edward Allan [ORNL

2011-03-01T23:59:59.000Z

224

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

225

Conservation Division regiulations for appliance-efficiency standards relating to refrigerators and freezers, room air conditioners, central air conditioners, gas space heaters, water heaters, plumbing fittings, gas clothes dryers, and gas cooking appliances  

SciTech Connect (OSTI)

The text of the appliance efficiency standards for certain types of new appliances sold in California is presented. Specifications and test methods to identify complying refrigerators, freezers, air conditioners, gas space heaters, water heaters, plumbing fittings, gas clothes dryers, and gas cooking appliances are covered.

Not Available

1981-12-16T23:59:59.000Z

226

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

227

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

228

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

229

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

230

2015-03-25 Issuance: Definitions Regarding Consumer Water Heaters Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking regarding definitions for consumer water heaters, as issued by the Acting Deputy Assistant Secretary for Energy Efficiency on March 25, 2015. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

231

2015-03-26 Issuance: Residential Water Heaters; Notice of Proposed Rulemaking Withdrawal  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking withdrawal regarding Energy Conservation Standards for Residential Water Heaters, as issued by the Acting Deputy Assistant Secretary for Energy Efficiency on March 26, 2015. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

232

2014-06-27 Issuance: Test Procedures for Residential and Commercial Water Heaters; Final Rule  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register final rule regarding test procedures for residential and commercial water heaters, as issued by the Deputy Assistant Secretary for Energy Efficiency on June 27, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

233

California Solar Initiative (CSI) Thermal Program Metering Installation Guide Purpose: The purpose of this metering installation guide is to provide participating eligible contractors  

E-Print Network [OSTI]

or after the back-up heater) creates branches of water that have different flow rates. If the hot #12 with recirculation returning to backup heater, no recirculation, and a mixing valve after the backup water heater to the mixing valve. Place the hot sensor on the pipe between the solar tank and the backup water heater. #12

234

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

235

Residential Solar Water Heating Rebates  

Broader source: Energy.gov [DOE]

New Hampshire offers a rebate for residential solar water-heating systems and solar space-heating systems. The rebate is equal to $1,500 for systems with an annual estimated output of 5.5 MMBTU to...

236

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,...

237

Solar Hot Water Heater Industry in Barbados | Department of Energy  

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: AlternativeEnvironment,Institutes and ResponseStaffServicesFutureU.S. technologicalEnergy

238

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

239

Effect of Fuel Wobbe Number on Pollutant Emissions from Advanced Technology Residential Water Heaters: Results of Controlled Experiments  

SciTech Connect (OSTI)

The research summarized in this report is part of a larger effort to evaluate the potential air quality impacts of using liquefied natural gas in California. A difference of potential importance between many liquefied natural gas blends and the natural gas blends that have been distributed in California in recent years is the higher Wobbe number of liquefied natural gas. Wobbe number is a measure of the energy delivery rate for appliances that use orifice- or pressure-based fuel metering. The effect of Wobbe number on pollutant emissions from residential water heaters was evaluated in controlled experiments. Experiments were conducted on eight storage water heaters, including five with “ultra low-NO{sub X}” burners, and four on-demand (tankless) water heaters, all of which featured ultra low-NO{sub X} burners. Pollutant emissions were quantified as air-free concentrations in the appliance flue and fuel-based emission factors in units of nanogram of pollutant emitter per joule of fuel energy consumed. Emissions were measured for carbon monoxide (CO), nitrogen oxides (NO{sub X}), nitrogen oxide (NO), formaldehyde and acetaldehyde as the water heaters were operated through defined operating cycles using fuels with varying Wobbe number. The reference fuel was Northern California line gas with Wobbe number ranging from 1344 to 1365. Test fuels had Wobbe numbers of 1360, 1390 and 1420. The most prominent finding was an increase in NO{sub X} emissions with increasing Wobbe number: all five of the ultra low-NO{sub X} storage water heaters and two of the four ultra low-NO{sub X} on-demand water heaters had statistically discernible (p<0.10) increases in NO{sub X} with fuel Wobbe number. The largest percentage increases occurred for the ultra low-NO{sub X} water heaters. There was a discernible change in CO emissions with Wobbe number for all four of the on-demand devices tested. The on-demand water heater with the highest CO emissions also had the largest CO increase with increasing fuel Wobbe number.

Rapp, VH; Singer, BC

2014-03-01T23:59:59.000Z

240

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 solar water" 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

Solar Works in Seattle: Domestic Hot Water  

Broader source: Energy.gov [DOE]

Seattle's residential solar hot water workshop. Content also covers general solar resource assessment, siting, and financial incentives.

242

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

243

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.

244

Solar Water Heating Webinar | Department of Energy  

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

Weatherization Assistance Program Pilot Projects Solar Water Heating Webinar Solar Water Heating Webinar Watch a recording of National Renewable Energy Laboratory (NREL)...

245

Solar Water Heating Incentive Program  

Broader source: Energy.gov [DOE]

Beginning in the fall of 2003, Energy Trust of Oregon's Solar Water Heating (SWH) Incentive Program offers incentives to customers of Pacific Power, PGE, NW Natural Gas and Cascade Natural Gas who...

246

Wind Issues in Solar Thermal Performance Ratings: Preprint  

SciTech Connect (OSTI)

We suggest that wind bias against unglazed solar water heaters be mitigated by using a calibrated collector model to derive a wind correction to the measured efficiency curve.

Burch, J.; Casey, R.

2009-04-01T23:59:59.000Z

247

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

248

Simulation Models for Improved Water Heating Systems  

E-Print Network [OSTI]

Storage Water Heater .point for modeling storage water heaters. The algorithmsfired, natural draft storage water heater. Figure 1 shows a

Lutz, Jim

2014-01-01T23:59:59.000Z

249

Development of minimum efficiency standards for large capacity air conditioners, and commercial water heaters, refrigerators, and freezers. Final report  

SciTech Connect (OSTI)

The California Energy Resources Conservation and Development Commission has promulgated appliance energy efficiency standards and energy conservation standards for new construction with the objective of reducing energy consumption in the State of California. The following appliance categories are specifically addressed: large capacity air conditioners; commercial water heaters; and commercial refrigerators and freezers. The tasks that have been performed include: an energy use pattern study for the subject equipment; an examination of the size distribution of commercial air conditioning equipment; an examination of the different types of commercial air conditioning systems; an evaluation of the effectiveness of economizers in reducing commercial air conditioning system energy consumption in California; an examination of the effects of oversizing commercial air conditioners; a detailed study of supermarket refrigeration and air conditioning equipment; an evaluation of the economic feasibility of utilizing air conditioner waste heat to heat water; an assessment of the applicability of existing test procedures for small water heaters to large water heaters; and a brief investigation of the marketing and distribution systems for air conditioning and refrigeration equipment. Results of the efforts are described.

Merrill, P.S.; Rettberg, R.J.; Erickson, R.C.; Toor, J.S.

1980-05-01T23:59:59.000Z

250

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

251

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

252

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.

253

Waverly Light and Power- Residential Solar Thermal Rebates  

Broader source: Energy.gov [DOE]

Waverly Light and Power (WL&P) offers rebates for solar hot water heating systems to its residential customers. All purchases must be pre-approved through WL&P's solar water heater...

254

Solar Hot Water Market Development in Knoxville, TN | Department...  

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

Information Resources Solar Hot Water Market Development in Knoxville, TN Solar Hot Water Market Development in Knoxville, TN Assessment of local solar hot water markets, market...

255

Austin Energy- Residential Solar Loan Program (Texas)  

Broader source: Energy.gov [DOE]

Austin Energy offers two types of loans for residential customers to finance solar water heater and and solar PV systems in eligible homes. [http://www.austinenergy.com/Energy%20Efficiency/Programs...

256

Santa Clara Water and Sewer- Solar Water Heating Program  

Broader source: Energy.gov [DOE]

In 1975, the City of Santa Clara established the nation's first municipal solar utility. Under the Solar Water Heating Program, the Santa Clara Water and Sewer Utilities Department supplies,...

257

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

258

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...

259

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

260

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

Note: This page contains sample records for the topic "heaters solar water" 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

Innovative solar thermochemical water splitting.  

SciTech Connect (OSTI)

Sandia National Laboratories (SNL) is evaluating the potential of an innovative approach for splitting water into hydrogen and oxygen using two-step thermochemical cycles. Thermochemical cycles are heat engines that utilize high-temperature heat to produce chemical work. Like their mechanical work-producing counterparts, their efficiency depends on operating temperature and on the irreversibility of their internal processes. With this in mind, we have invented innovative design concepts for two-step solar-driven thermochemical heat engines based on iron oxide and iron oxide mixed with other metal oxides (ferrites). The design concepts utilize two sets of moving beds of ferrite reactant material in close proximity and moving in opposite directions to overcome a major impediment to achieving high efficiency--thermal recuperation between solids in efficient counter-current arrangements. They also provide inherent separation of the product hydrogen and oxygen and are an excellent match with high-concentration solar flux. However, they also impose unique requirements on the ferrite reactants and materials of construction as well as an understanding of the chemical and cycle thermodynamics. In this report the Counter-Rotating-Ring Receiver/Reactor/Recuperator (CR5) solar thermochemical heat engine and its basic operating principals are described. Preliminary thermal efficiency estimates are presented and discussed. Our ferrite reactant material development activities, thermodynamic studies, test results, and prototype hardware development are also presented.

Hogan, Roy E. Jr.; Siegel, Nathan P.; Evans, Lindsey R.; Moss, Timothy A.; Stuecker, John Nicholas (Robocasting Enterprises, Albuquerque, NM); Diver, Richard B., Jr.; Miller, James Edward; Allendorf, Mark D. (Sandia National Laboratories, Livermore, CA); James, Darryl L. (Texas Tech University, Lubbock, TX)

2008-02-01T23:59:59.000Z

262

Monitoring SERC Technologies — Solar Hot Water  

Broader source: Energy.gov [DOE]

A webinar by National Renewable Energy Laboratory analyst Eliza Hotchkiss on Solar Hot Water systems and how to properly monitor their installation.

263

Gulf Power- Solar Thermal Water Heating Program  

Broader source: Energy.gov [DOE]

'''''This program reopened on October 3, 2011 for 2012 applications. Funding is limited and must be reserved through online application before the installation of qualifying solar water heating...

264

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...

265

Solar Hot Water Resources and Technologies  

Broader source: Energy.gov [DOE]

This page provides a brief overview of solar hot water (SHW) technologies supplemented by specific information to apply SHW within the Federal sector.

266

Solar Hot Water Contractor Licensing  

Broader source: Energy.gov [DOE]

Arkansas offers several limited, specialty licenses for solar thermal installers under the general plumbing license. There are three specialty classifications available for solar thermal...

267

Going solar in paradise : solar water heaters on the island of Hawaii.  

E-Print Network [OSTI]

??Energy efficient technologies and renewable energy technologies are becoming less of a novelty in the American energy mix. These technologies offer the promise of a… (more)

Murray, Julie Marie

2013-01-01T23:59:59.000Z

268

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

269

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

270

Mandating Solar Hot Water by California Local Governments: Legal Issues  

E-Print Network [OSTI]

the legality of solar mandates in California cities andCITIES & CALIFORNIA ENERGY COMMISSION, SOLAR HANDBOOK FORMandating Solar Hot Water By California Local Governments:

Hoffman,, Peter C.

1981-01-01T23:59:59.000Z

271

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

272

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

273

Solar Hot Water Contractor Licensing  

Broader source: Energy.gov [DOE]

In order to be eligible for Maine's solar thermal rebate program, systems must be installed by licensed plumbers who have received additional certification for solar thermal systems from the North...

274

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...

275

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...

276

Report on Solar Water Heating Quantitative Survey  

SciTech Connect (OSTI)

This report details the results of a quantitative research study undertaken to better understand the marketplace for solar water-heating systems from the perspective of home builders, architects, and home buyers.

Focus Marketing Services

1999-05-06T23:59:59.000Z

277

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

278

Performance of Gas-fired Water Heaters in a 10-home Field Study  

Broader source: Energy.gov [DOE]

This presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012, and addressed the question "Are high-efficiency hot water heating systems worth the cost?"

279

An energy equivalency analysis of trade-offs between thermal efficiency and standby loss requirements for commercial gas service water heaters  

SciTech Connect (OSTI)

The American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) Standing Standard Project Committee 90.1 has approved an addendum (90.lb) to ASHRAE/IES Standard 90.1-1989. The addendum specifies an increase in the minimum thermal efficiency requirement (from 77% to 78%), accompanied by an easing of the standby loss requirements, for commercial gas-fired service water heaters. The Pacific Northwest Laboratory performed an energy equivalency analysis to assess the impact of trade-offs between the improved thermal efficiency and the less stringent standby loss requirements. The analysis objective was to estimate whether the energy savings during firing would offset the increased energy losses during standby periods. The primary focus of this report is to summarize the major results of the analysis and provide a recommendation for minimum energy-efficiency commercial gas-fired service water heaters. Limitations to the availability of detailed performance and energy-use data for these commercial water heaters are also pointed out.

Somasundaram, S.; Jarnagin, R.E.; Keller, J.M.; Schliesing, J.S.

1992-06-01T23:59:59.000Z

280

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

Note: This page contains sample records for the topic "heaters solar water" 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

Experimental investigation on the photovoltaic-thermal solar heat pump air-conditioning system on water-heating mode  

SciTech Connect (OSTI)

An experimental study on operation performance of photovoltaic-thermal solar heat pump air-conditioning system was conducted in this paper. The experimental system of photovoltaic-thermal solar heat pump air-conditioning system was set up. The performance parameters such as the evaporation pressure, the condensation pressure and the coefficient of performance (COP) of heat pump air-conditioning system, the water temperature and receiving heat capacity in water heater, the photovoltaic (PV) module temperature and the photovoltaic efficiency were investigated. The experimental results show that the mean photovoltaic efficiency of photovoltaic-thermal (PV/T) solar heat pump air-conditioning system reaches 10.4%, and can improve 23.8% in comparison with that of the conventional photovoltaic module, the mean COP of heat pump air-conditioning system may attain 2.88 and the water temperature in water heater can increase to 42 C. These results indicate that the photovoltaic-thermal solar heat pump air-conditioning system has better performances and can stably work. (author)

Fang, Guiyin; Hu, Hainan; Liu, Xu [Department of Physics, Nanjing University, Nanjing 210093 (China)

2010-09-15T23:59:59.000Z

282

Practical Solar Thermal Chilled Water  

E-Print Network [OSTI]

the potential to impact America's use of non-renewable energy beyond its own design capacity by applying it to the optimization of an existing building's system. Solar-thermal chilling systems are not new. However, few of them can be described as a practical...

Leavell, B.

2010-01-01T23:59:59.000Z

283

PV vs. Solar Water Heating- Simple Solar Payback  

Broader source: Energy.gov [DOE]

Solar energy systems hang their hats on payback. Financial payback is as tangible as money in your bank account, while other types of payback—like environmental externalities—are not usually calculated in dollars. There’s no doubt that photovoltaic (PV) and solar hot water (SHW) systems will pay you back. Maybe not as quickly as you’d like, but all systems will significantly offset their cost over their lifetimes. Here we’ll try to answer: Which system will give the quickest return on investment (ROI)?

284

TYPICAL HOT WATER DRAW PATTERNS BASED ON FIELD DATA  

E-Print Network [OSTI]

for Rating Residential Water Heaters. Atlanta, GA: ASHRAE,for Residential Water Heaters, Direct Heating Equipment, andthe Energy Consumption of Water Heaters. Title 10 Code of

Lutz, Jim

2014-01-01T23:59:59.000Z

285

A Water Conservation Scenario for the Residential and Industrial Sectors in California: Potential Saveings of Water and Related Energy  

E-Print Network [OSTI]

in Residential Hot Water Heaters. Berkeley, CA: Lawrenceelectricity savings because gas hot water heaters are moreprevalent than electric water heaters in California. Bathing

Benenson, P.

2010-01-01T23:59:59.000Z

286

A Systems Framework for Assessing Plumbing Products-Related Water Conservation  

E-Print Network [OSTI]

of Natural Gas Tankless Water Heaters. Center for Energy andEnvironment: Tankless Water Heaters. Coughlin, K. (2006).Compatibility with tankless water heaters Water waste with

Williams, Alison

2012-01-01T23:59:59.000Z

287

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

288

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

289

Residential Absorption 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 RankCombustion | Department ofT ib l LPROJECTS IN RENEWABLE ENERGY FOR HIGH SCHOOL| DepartmentResidential

290

Solar Farm Going Strong at Water Treatment Plant in Pennsylvania...  

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

Solar Farm Going Strong at Water Treatment Plant in Pennsylvania Solar Farm Going Strong at Water Treatment Plant in Pennsylvania October 8, 2010 - 10:39am Addthis Aqua...

291

Solar Water Heating with Low-Cost Plastic Systems (Brochure)  

SciTech Connect (OSTI)

Newly developed solar water heating technology can help Federal agencies cost effectively meet the EISA requirements for solar water heating in new construction and major renovations. This document provides design considerations, application, economics, and maintenance information and resources.

Not Available

2012-01-01T23:59:59.000Z

292

Solar Hot Water Creates Savings for Homeless Shelters | Department...  

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

Solar Hot Water Creates Savings for Homeless Shelters Solar Hot Water Creates Savings for Homeless Shelters July 15, 2010 - 12:10pm Addthis Kevin Craft What are the key facts?...

293

City of Sunset Valley- Solar Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

The City of Sunset Valley offers rebates to local homeowners who install solar water heating systems on their properties. The local rebate acts as an add-on to the solar water heating rebates that...

294

STATE OF CALIFORNIA SOLAR DOMESTIC HOT WATER SYSTEMS (SDHW)  

E-Print Network [OSTI]

STATE OF CALIFORNIA SOLAR DOMESTIC HOT WATER SYSTEMS (SDHW) CEC- CF-6R-MECH-02 (Revised 08/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-MECH-02 Solar Domestic Hot Water Systems (SDHW OF CALIFORNIA SOLAR DOMESTIC HOT WATER SYSTEMS (SDHW) CEC- CF-6R-MECH-02 (Revised 08/09) CALIFORNIA ENERGY

295

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

296

Analysis of the Effects of the Application of Solar Water Heater in Building Energy Consumption  

E-Print Network [OSTI]

With the development of the economy, civilian construction in the Changjiang River delta region is rapidly expanding. The boom in the construction industry definitely results in that the proportion of building energy consumption to whole energy...

Wang, J.; Li, Z.

2006-01-01T23:59:59.000Z

297

City of San Jose- Solar Hot Water Heaters and Photovoltaic Systems Permit Requirements  

Broader source: Energy.gov [DOE]

Building, Planning and Electrical Permits are required for Photovoltiac (PV) systems installed in San Jose. In most cases, PV systems must also undergo a Building Plan Review and an Electrical...

298

Coweta-Fayette EMC- Residential Solar Water Heater Rebate Program (Georgia)  

Broader source: Energy.gov [DOE]

Coweta-Fayette Electric Membership Corporation (EMC) provides electric and natural gas service to 58,000 customers in Georgia's Coweta, Fayette, Meriwether, Heard, Troop and Fulton counties.

299

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

300

Protecting Solar Rights in California Through an Exploration of the California Water Doctrine  

E-Print Network [OSTI]

Nevertheless water and solar energy share many similar to realizing additional solar energy generation throughout installation of a  solar energy systems.    Solar Easement 

Fedman, Anna

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters solar water" 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

SPECIATION OF TRACE ORGANIC LIGANDS AND INORGANIC AND ORGANOMETALLIC COMPOUNDS IN OIL SHALE PROCESS WATERS  

E-Print Network [OSTI]

1979). retort water, boiler blowdown, and heater- treaterGeokinetics Retort Water Occidental Heater-Treater :ss.ssa) situ Occidental Heater-Treater Water Retort 6 modified

Fish, Richard H.

2013-01-01T23:59:59.000Z

302

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

303

Hot Water Draw Patterns in Single-Family Houses: Findings from Field Studies  

E-Print Network [OSTI]

gas or electric storage water heaters. The study’s goal washouses used a storage water heater. Without includinghouseholds which have storage water heaters, although this

Lutz, Jim

2012-01-01T23:59:59.000Z

304

South River EMC- Solar Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

South River Electric Membership Corporation (EMC) is providing rebates to encourage their customers to install solar water heating systems. To be eligible for the rebate solar collectors must have...

305

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2011  

E-Print Network [OSTI]

conditioners and heat pumps, and water heaters We modifiedConditioners and Heat Pumps NAECA 1987 Water Heaters NAECAConditioners and Heat Pumps EPACT 1992 Water Heaters, Hot

Meyers, Stephen

2013-01-01T23:59:59.000Z

306

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2010  

E-Print Network [OSTI]

conditioners and heat pumps, and water heaters We modifiedConditioning Heat Pumps NAECA 1987 Water Heaters NAECA 1987Conditioners and Heat Pumps EPACT 1992 Water Heaters, Hot

Meyers, Stephen

2013-01-01T23:59:59.000Z

307

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 through 2012  

E-Print Network [OSTI]

conditioners and heat pumps, and water heaters We modifiedConditioners and Heat Pumps NAECA 1987 Water Heaters NAECAConditioners and Heat Pumps EPACT 1992 Water Heaters, Hot

Meyers, Stephen

2013-01-01T23:59:59.000Z

308

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

309

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

310

Installation package for a Sunspot Cascade Solar Water Heating System  

SciTech Connect (OSTI)

Elcam, Incorporated of Santa Barbara, California, has developed two solar water heating systems. The systems have been installed at Tempe, Arizona and San Diego, California. The systems consist of the following: collector, collector-tank water loop, solar tank, conventional tank and controls. General guidelines are provided which may be utilized in development of detailed instalation plans and specifications. In addition, it provides instruction on operation, maintenance and installation of solar hot water systems.

None

1980-09-01T23:59:59.000Z

311

Fort Pierce Utilities Authority- Solar Water Heating Rebate (Florida)  

Broader source: Energy.gov [DOE]

'''''Fort Pierce Utilities Authority has suspended the Solar Water Heating rebate program until 2013. Contact the utility for more information on these offerings.'''''

312

Duquesne Light Company- Residential Solar Water Heating Program  

Broader source: Energy.gov [DOE]

Duquesne Light provides rebates to its residential customers for purchasing and installing qualifying solar water heating systems. Eligible systems may receive a flat rebate of $286 per qualifying...

313

Solar process water heat for the Iris Images Custom Color Photo Lab. Final report  

SciTech Connect (OSTI)

This is the final technical report of the solar facility locted at Iris Images Custom Photo Laboratory in Mill Valley, California. It was designed to provide 59 percent of the hot water requirements for developing photographic film and domestic hot water use. The design load is to provide 6 gallons of hot water per minute for 8 hours per working day at 100/sup 0/F. It has 640 square feet of flat plate collectors and 360 gallons of hot water storage. The auxiliary back up system is a conventional gas-fired water heater. Freeze protection in this mild climate was originally provided by closed-loop circulation of hot water from the storage tank. Later this was changed to a drain-down system due to a freeze when electrical power failed. This system has been relatively successful with little or no scheduled maintenance. The site and building description, subsystem description, as-built drawings, cost breakdown and analysis, performance analysis, lessons learned, and the operation and maintenance manual are included.

Not Available

1980-03-01T23:59:59.000Z

314

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

315

Opportunities for utility involvement with solar domestic hot water  

SciTech Connect (OSTI)

Solar water heating is one of a number of options that can be considered under utility demand-side management (DSM) programs. Utilities perceive a range of potential benefits for solar water heating in terms of customer service, energy conservation, load management, environmental enhancement, and public relations. The solar industry may benefit from utility marketing efforts, economies of scale, added credibility, financing options, and long-term maintenance arrangements. This paper covers three topics: (1) the energy and demand impacts of solar water heating on utility load profiles based on the results of four studies in the literature, (2) the results of workshops sponsored by the National Renewable Energy Laboratory (NREL) to identify key issues faced by utilities in considering residential solar water heating as a DSM option, (3) several current or planned utility programs to promote solar water heating. 7 refs.

Carlisle, N.; Christensen, C. (National Renewable Energy Lab., Golden, CO (United States)); Barrett, L. (Barrett Consulting Associates, Inc., Colorado Springs, CO (United States))

1992-05-01T23:59:59.000Z

316

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

317

enhanced) in water vapor. The distribution of water ice throughout the solar nebula may  

E-Print Network [OSTI]

enhanced) in water vapor. The distribution of water ice throughout the solar nebula may have varied Solar System (Univ. of Arizona Press, Tucson, AZ, 1988), p. 348. The time scale for settling of solids that are a few hundred times greater than that of the canonical solar nebula (14). Turbulent

Utrecht, Universiteit

318

Protecting Solar Rights in California Through an Exploration of the California Water Doctrine  

E-Print Network [OSTI]

Nevertheless water and solar energy share many similar resource.  Water and solar energy share several  properties that both water and solar energy share that  make the 

Fedman, Anna

2011-01-01T23:59:59.000Z

319

Design package for solar domestic hot water system  

SciTech Connect (OSTI)

Information used to evaluate the initial design of the Elcam, Inc., Solar Domestic Hot Water System is presented. Included are such items as the system performance specification, detailed design drawings and other information. Elcam, Inc., has developed two solar heated prototype hot water systems and two heat exchangers. The hot water systems consist of the following subsystems: collector, storage, control, transport, auxiliary energy, and government-furnished Site Data Acquisition. The two systems are installed at Tempe, Arizona, and San Diego, California.

None

1980-09-01T23:59:59.000Z

320

Alternatives for reducing hot-water bills  

SciTech Connect (OSTI)

A two stage approach to reducing residential water heating bills is described. In Stage I, simple conservation measures were included to reduce the daily hot water energy consumption and the energy losses from the water tank. Once these savings are achieved, Stage II considers more costly options for further reducing the water heating bill. Four alternatives are considered in Stage II: gas water heaters; solar water heaters (two types); heat pump water heaters; and heat recovery from a heat pump or air conditioner. To account for variations within the MASEC region, information on water heating in Rapid City, Minneapolis, Chicago, Detroit, and Kansas City is presented in detail. Information on geography, major population centers, fuel prices, climate, and state solar incentives is covered. (MCW)

Bennington, G.E.; Spewak, P.C.

1981-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters solar water" 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

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

322

Water Pollution Control Plant Solar Site Evaluation: San José  

Broader source: Energy.gov [DOE]

This report describes the findings of a solar site evaluation conducted at the San Jose/Santa Clara Water Pollution Control Plant (Site) in the City of San Jose, California (City). This evaluation was conducted as part of a larger study to assess solar potential at multiple public facilities within the City.

323

Solar Water Heating Requirement for New Residential Construction  

Broader source: Energy.gov [DOE]

In June 2008, Hawaii enacted legislation, [http://www.capitol.hawaii.gov/session2008/bills/SB644_CD1_.htm SB 644], with the intent to require solar water-heating (SWH) systems to be installed on...

324

Minnesota Power- Solar-Thermal Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

Minnesota Power offers a 25% rebate for qualifying solar thermal water heating systems. The maximum award for single-family customers is $2,000 per customer; $4,000 for 2-3 family unit buildings; ...

325

GreyStone Power- Solar Water Heating Program  

Broader source: Energy.gov [DOE]

GreyStone Power, an electricity cooperative serving 103,000 customers in Georgia, introduced a solar water heating rebate in March 2009. This $500 rebate is available to customers regardless of...

326

Southwest Gas Corporation- Smarter Greener Better Solar Water Heating Program  

Broader source: Energy.gov [DOE]

Southwest Gas is offering rebates to Nevada customers for solar water heating systems installed in private residential, small business, public and other properties. Rebates are based on the amount...

327

Beaches Energy Services- Solar Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

Beaches Energy Services offers a solar water heating rebate to their residential customers. This $500 rebate applies to new systems which are properly installed and certified. New construction and...

328

Theoretical investigation of solar energy conversion and water oxidation catalysis  

E-Print Network [OSTI]

Solar energy conversion and water oxidation catalysis are two great scientific and engineering challenges that will play pivotal roles in a future sustainable energy economy. In this work, I apply electronic structure ...

Wang, Lee-Ping

2011-01-01T23:59:59.000Z

329

Pasadena Water and Power- Solar Power Installation Rebate  

Broader source: Energy.gov [DOE]

Pasadena Water and Power (PWP) offers its electric customers a rebate for photovoltaic (PV) installations, with a goal of helping to fund the installation of 14 megawatts (MW) of solar power by...

330

New Hampshire Electric Co-Op- Solar Hot Water  

Broader source: Energy.gov [DOE]

New Hampshire Electric Co-Op (NHEC) offers rebates to residential customers who install qualified solar water-heating systems. The rebate is equal to 20% of installed system costs, with a maximum...

331

Lake Worth Utilities- Residential Solar Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

The City of Lake Worth Utilities (CLWU), in conjunction with Florida Municipal Power Agency, offers rebates to customers who purchase and install a solar water heating system for residential use. A...

332

Questar Gas- Residential Solar Assisted Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

Questar gas provides incentives for residential customers to purchase and install solar water heating systems on their homes. Rebates of $750 per system are provided to customers of Questar who...

333

Questar Gas- Residential Solar Assisted Water Heating Rebate Program (Idaho)  

Broader source: Energy.gov [DOE]

Questar gas provides incentives for residential customers to purchase and install solar water heating systems on their homes. Rebates of $750 per system are provided to customers of Questar who...

334

City of Tallahassee Utilities- Solar Water Heating Rebate  

Broader source: Energy.gov [DOE]

The City of Tallahassee Utilities offers a $450 rebate to homeowners* and homebuilders who install a solar water-heating system. This rebate may be applied to a first-time installation or to the...

335

City of Palo Alto Utilities- Solar Water Heating Program  

Broader source: Energy.gov [DOE]

City of Palo Alto Utilities is offering incentives for their residential, commercial and industrial customers to install solar water heating systems on their homes and facilities with a goal of 1...

336

The Phases of Water Ice in the Solar Nebula  

E-Print Network [OSTI]

Understanding the phases of water ice that were present in the solar nebula has implications for understanding cometary and planetary compositions as well as internal evolution of these bodies. Here we show that amorphous ice formed more readily than previously recognized, with formation at temperatures ice to form. This processing would be a natural consequence of ice dynamics, and would allow for the trapping of noble gases and other volatiles in water ice in the outer solar nebula.

Ciesla, Fred J

2014-01-01T23:59:59.000Z

337

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

338

Pilot Phase of a Field Study to Determine Waste of Water and Energy in Residential Hot-Water Distribution Systems  

E-Print Network [OSTI]

end use point, at the water heater in one second intervalsand monitoring at the water heater and hot water end uses.of water at the trunk (water heater) and twigs (individual

Lutz, Jim

2012-01-01T23:59:59.000Z

339

Water and Energy Wasted During Residential Shower Events: Findings from a Pilot Field Study of Hot Water Distribution Systems  

E-Print Network [OSTI]

of Natural Gas Tankless Water Heaters. Center for Energy andhot water from the water heater to each end-use locationMixed Temperature Water Water Heater Drain Indoor Boundary

Lutz, Jim

2012-01-01T23:59:59.000Z

340

Sustainable Energy Resources for Consumers Webinar on Solar Water Heating Transcript  

Broader source: Energy.gov [DOE]

Video recording transcript of a Webinar on Nov. 16, 2010 about residential solar water heating applications

Note: This page contains sample records for the topic "heaters solar water" 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

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

342

Simulation Models for Improved Water Heating Systems  

E-Print Network [OSTI]

and Simulation of a Smart Water Heater. ” In Workshop inFreezers, Furnaces, Water Heaters, Room and Central AirNovember. ADL. 1982b. Water Heater Computer Model User’s

Lutz, Jim

2014-01-01T23:59:59.000Z

343

A SOLAR TEST COLLECTOR FOR EVALUATION OF BOTH SELECTIVE AND NON-SELECTIVE ABSORBERS  

E-Print Network [OSTI]

~Design An electric water heater serves both as a source fortank for hot water. The water heater is a Sears, Roebuck andmodel No. 183.32123. This water heater has a 20 gal capacity

Lampert, Carl M.

2011-01-01T23:59:59.000Z

344

EWEB- Residential Solar Water Heating Loan Program  

Broader source: Energy.gov [DOE]

Eugene Water and Electric Board (EWEB) offers residential customers a loan and cash discount program called, "The Bright Way To Heat Water." The program is designed to promote the installation of...

345

Alternative Energy Development and China's Energy Future  

E-Print Network [OSTI]

of thermosiphon solar water heaters. ” Solar Energy 83: 39-2011e, “Shoddy solar water heaters threaten reputation. ”54 Outlook of Solar Water Heaters in the Residential

Zheng, Nina

2012-01-01T23:59:59.000Z

346

A SOLAR TEST COLLECTOR FOR EVALUATION OF BOTH SELECTIVE AND NON-SELECTIVE ABSORBERS  

E-Print Network [OSTI]

and Storage System~Design An electric water heater serveswater and storage tank for hot water. The water heater is a

Lampert, Carl M.

2011-01-01T23:59:59.000Z

347

TYPICAL HOT WATER DRAW PATTERNS BASED ON FIELD DATA  

E-Print Network [OSTI]

gas or electric storage water heaters. The goal was to helpa demand and a storage water heater. For each case ofof natural gas storage and tankless water heaters 24 water

Lutz, Jim

2014-01-01T23:59:59.000Z

348

Solar Water Heating in Dragash Municipality, Kosovo.  

E-Print Network [OSTI]

?? Water has been heated with the sun has almost as long as there have been humans, but itis not until recently that more advanced… (more)

Dahl Håkans, Mia

2010-01-01T23:59:59.000Z

349

Solar Water Heating: SPECIFICATION, CHECKLIST AND GUIDE  

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 |Energy Usage » SearchEnergyDepartmentScoping Study |4 SolarPVSolar Viewed as Triple

350

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

351

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...

352

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:

353

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

354

Federal technology alert. Parabolic-trough solar water heating  

SciTech Connect (OSTI)

Parabolic-trough solar water heating is a well-proven renewable energy technology with considerable potential for application at Federal facilities. For the US, parabolic-trough water-heating systems are most cost effective in the Southwest where direct solar radiation is high. Jails, hospitals, barracks, and other facilities that consistently use large volumes of hot water are particularly good candidates, as are facilities with central plants for district heating. As with any renewable energy or energy efficiency technology requiring significant initial capital investment, the primary condition that will make a parabolic-trough system economically viable is if it is replacing expensive conventional water heating. In combination with absorption cooling systems, parabolic-trough collectors can also be used for air-conditioning. Industrial Solar Technology (IST) of Golden, Colorado, is the sole current manufacturer of parabolic-trough solar water heating systems. IST has an Indefinite Delivery/Indefinite Quantity (IDIQ) contract with the Federal Energy Management Program (FEMP) of the US Department of Energy (DOE) to finance and install parabolic-trough solar water heating on an Energy Savings Performance Contract (ESPC) basis for any Federal facility that requests it and for which it proves viable. For an ESPC project, the facility does not pay for design, capital equipment, or installation. Instead, it pays only for guaranteed energy savings. Preparing and implementing delivery or task orders against the IDIQ is much simpler than the standard procurement process. This Federal Technology Alert (FTA) of the New Technology Demonstration Program is one of a series of guides to renewable energy and new energy-efficient technologies.

NONE

1998-04-01T23:59:59.000Z

355

Solar space and water heating system installed at Charlottesville, Virginia  

SciTech Connect (OSTI)

The solar energy system located at David C. Wilson Neuropsychiatric Hospital, Charlottesville, Virginia, consists of 88 single glazed, Sunworks Solector copper base plate collector modules; hot water coils in the hot air ducts; a domestic hot water (DHW) preheat tank; a 3,000 gallon concrete urethane-insulated storage tank and other miscellaneous components. This report includes extracts from the site files, specifications, drawings, installation, operation and maintenance instructions.

Greer, Charles R.

1980-09-01T23:59:59.000Z

356

Reactive Sputtering of Bismuth Vanadate Photoanodes for Solar Water Splitting  

E-Print Network [OSTI]

Reactive Sputtering of Bismuth Vanadate Photoanodes for Solar Water Splitting Le Chen,, Esther of Electrical Engineering and Computer Sciences, University of California, Berkeley, Berkeley, California 94720 has remained relatively underexplored. Here, we report the synthesis of BiVO4 thin films by reactive

Javey, Ali

357

An overview of water disinfection in developing countries and the potential for solar thermal water pasteurization  

SciTech Connect (OSTI)

This study originated within the Solar Buildings Program at the U.S. Department of Energy. Its goal is to assess the potential for solar thermal water disinfection in developing countries. In order to assess solar thermal potential, the alternatives must be clearly understood and compared. The objectives of the study are to: (a) characterize the developing world disinfection needs and market; (b) identify competing technologies, both traditional and emerging; (c) analyze and characterize solar thermal pasteurization; (d) compare technologies on cost-effectiveness and appropriateness; and (e) identify research opportunities. Natural consequences of the study beyond these objectives include a broad knowledge of water disinfection problems and technologies, introduction of solar thermal pasteurization technologies to a broad audience, and general identification of disinfection opportunities for renewable technologies.

Burch, J.; Thomas, K.E.

1998-01-01T23:59:59.000Z

358

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

359

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

360

SolarWaterWorld AG | 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 CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty Ltd Jump to:Information SilverSolarStructure Ltd Jump to:SolarWaterWorld AG

Note: This page contains sample records for the topic "heaters solar water" 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

Thermal Conductivity Enhancement of High Temperature Phase Change Materials for Concentrating Solar Power Plant Applications  

E-Print Network [OSTI]

analyzed a built-in, storage-type water heater containing astorage and thermal protection that can operate with PCM technology. Among them are building insulators, water heaters,

Roshandell, Melina

2013-01-01T23:59:59.000Z

362

Solar energy for domestic use in southern Brazil.  

E-Print Network [OSTI]

?? Almost all the domestic water in Brazil is heated with an electrical heater directly by the end consumer. A typical heater has an effect… (more)

Hedenberg, Ola

2008-01-01T23:59:59.000Z

363

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

364

How to Make Appliance Standards Work: Improving Energy and Water Efficiency Test Procedures  

E-Print Network [OSTI]

efficiency of commercial water heaters and hot water supplyheat pump water heaters). http://edocket.access.gpo.gov/2004/CSA 4.3- 2004 Gas Water Heaters - Volume III, Storage

Lutz, Jim

2012-01-01T23:59:59.000Z

365

Desalination and Water Treatment 16 (2010) 339353 www.deswater.com April  

E-Print Network [OSTI]

subsystems: (a) an air and/or the water heater, which can use the solar energy; (b) a humidifierDesalination and Water Treatment 16 (2010) 339­353 www.deswater.com April 1944 technology for small-scale water production applications. There are several embodiments of this technology

Lienhard V, John H.

366

SYSTEM OPTIMIZTION OF HOT WATER CONCENTRATED SOLAR THERMOELECTRIC GENERATION  

E-Print Network [OSTI]

In this report, we describe the design of a concentrated solar thermoelectric (TE) system which can provide both electricity and hot water. Today’s thermoelectric materials have a relatively low efficiency (~6 % for temperature difference across the thermoelement on the order of 300 o C). However since thermoelectrics don’t need their cold side to be near room temperature, (in another word, one can chose the particular thermoelectric material to match to the operational temperature) it is possible to use the waste heat to provide hot water and this makes the overall efficiency of the combined system to be quite high. A key factor in the optimization of the thermoelectric module is the thermal impedance matching with the incident solar radiation, and also with the hot water heat exchanger on the cold side of the thermoelectric module. We have developed an analytic model for the whole system and optimized each component in order to minimize the material cost. TE element fill factor is found to be an important parameter to optimize at low solar concentrations (generated per mass of the thermoelectric elements. Similarly the co-optimization of the microchannel heat exchanger and the TE module can be used to minimize the amount of material in the heat exchanger and the pumping power required for forced convection liquid cooling. Changing the amount of solar concentration, changes the input heat flux and this is another parameter that can be optimized in order to reduce the cost of heat exchanger (by size), the tracking requirement and the whole system. A series of design curves for different solar concentration are obtained. It is shown that the overall efficiency of the system can be more than 80 % at 200x concentration which is independent of the material ZT (TE figure-of-merit). For a material with ZThot~0.9, the electrical conversion efficiency is ~10%. For advanced materials with ZThot ~ 2.8, the electrical conversion efficiency could reach ~21%. 1.

Kazuaki Yazawa; Ali Shakouri

367

DOE Publishes Notice of Proposed Rulemaking for Residential Water...  

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

has published a notice of proposed rulemaking regarding test procedures for residential water heaters and certain commercial water heaters. 78 FR 66201 (November 4, 2013). DOE...

368

Solar heating and hot water system installed at office building, One Solar Place, Dallas, Texas. Final report  

SciTech Connect (OSTI)

This document is the Final Report of the Solar Energy System Installed at the First Solar Heated Office Building, One Solar Place, Dallas, Texas. The Solar System was designed to provide 87 percent of the space heating needs, 100 percent of the potable hot water needs and is sized for future absorption cooling. The collection subsystem consists of 28 Solargenics, series 76, flat plate collectors with a total area of 1596 square feet. The solar loop circulates an ethylene glycol-water solution through the collectors into a hot water system heat exchanger. The hot water storage subsystem consists of a heat exchanger, two 2300 gallon concrete hot water storage tanks with built in heat exchangers and a back-up electric boiler. The domestic hot water subsystem sends hot water to the 10,200 square feet floor area office building hot water fixtures. The building cold water system provides make-up to the solar loop, the heating loop, and the hot water concrete storage tanks. The design, construction, cost analysis, operation and maintenance of the solar system are described. The system became operational July 11, 1979.

Not Available

1980-06-01T23:59:59.000Z

369

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2011  

E-Print Network [OSTI]

and Heat Pumps NAECA 1987 Water Heaters NAECA 1987 FurnacesPumps EPACT 1992 Water Heaters, Hot Water Supply Boilers andand heat pumps, and water heaters We modified the analytical

Meyers, Stephen

2013-01-01T23:59:59.000Z

370

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

371

How to Make Appliance Standards Work: Improving Energy and Water Efficiency Test Procedures  

E-Print Network [OSTI]

Volume III, Storage Water Heaters With Input Ratings AboveVolume III, Storage Water Heaters With Input Ratings AboveVolume III, Storage Water Heaters With Input Ratings Above

Lutz, Jim

2012-01-01T23:59:59.000Z

372

Hot Water Draw Patterns in Single-Family Houses: Findings from Field Studies  

E-Print Network [OSTI]

and R.K. Johnson. Heat Pump Water Heater Field Test: 30a Market-Optimized Heat- Pump Water Heater. Prepared by TIAXcost savings of heat pump water heaters Field test of

Lutz, Jim

2012-01-01T23:59:59.000Z

373

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

374

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

375

Design and Experiments of a Solar Low-temperature Hot Water Floor Radiant Heating System  

E-Print Network [OSTI]

The solar low-temperature hot water floor radiant heating system combines solar energy heating with floor radiant heating. This kind of environmental heating way not only saves fossil resources and reduces pollution, but also makes people feel more...

Wu, Z.; Li, D.

2006-01-01T23:59:59.000Z

376

Mandating Solar Hot Water by California Local Governments: Legal Issues  

E-Print Network [OSTI]

and counties the power to require dedication of solar accessthe power to re- quire dedication of solar easements as a

Hoffman,, Peter C.

1981-01-01T23:59:59.000Z

377

Solar High Temperature Water-Splitting Cycle with Quantum Boost  

SciTech Connect (OSTI)

A sulfur family chemical cycle having ammonia as the working fluid and reagent was developed as a cost-effective and efficient hydrogen production technology based on a solar thermochemical water-splitting cycle. The sulfur ammonia (SA) cycle is a renewable and sustainable process that is unique in that it is an all-fluid cycle (i.e., with no solids handling). It uses a moderate temperature solar plant with the solar receiver operating at 800°C. All electricity needed is generated internally from recovered heat. The plant would operate continuously with low cost storage and it is a good potential solar thermochemical hydrogen production cycle for reaching the DOE cost goals. Two approaches were considered for the hydrogen production step of the SA cycle: (1) photocatalytic, and (2) electrolytic oxidation of ammonium sulfite to ammonium sulfate in aqueous solutions. Also, two sub-cycles were evaluated for the oxygen evolution side of the SA cycle: (1) zinc sulfate/zinc oxide, and (2) potassium sulfate/potassium pyrosulfate. The laboratory testing and optimization of all the process steps for each version of the SA cycle were proven in the laboratory or have been fully demonstrated by others, but further optimization is still possible and needed. The solar configuration evolved to a 50 MW(thermal) central receiver system with a North heliostat field, a cavity receiver, and NaCl molten salt storage to allow continuous operation. The H2A economic model was used to optimize and trade-off SA cycle configurations. Parametric studies of chemical plant performance have indicated process efficiencies of ~20%. Although the current process efficiency is technically acceptable, an increased efficiency is needed if the DOE cost targets are to be reached. There are two interrelated areas in which there is the potential for significant efficiency improvements: electrolysis cell voltage and excessive water vaporization. Methods to significantly reduce water evaporation are proposed for future activities. Electrolysis membranes that permit higher temperatures and lower voltages are attainable. The oxygen half cycle will need further development and improvement.

Taylor, Robin [SAIC] [SAIC; Davenport, Roger [SAIC] [SAIC; Talbot, Jan [UCSD] [UCSD; Herz, Richard [UCSD] [UCSD; Genders, David [Electrosynthesis Co.] [Electrosynthesis Co.; Symons, Peter [Electrosynthesis Co.] [Electrosynthesis Co.; Brown, Lloyd [TChemE] [TChemE

2014-04-25T23:59:59.000Z

378

Solar hot water system installed at Mobile, Alabama. Final report  

SciTech Connect (OSTI)

This final report describes the solar energy hot water system installed at LaQuinta Motor Inn Inc., at Mobile, Alabama. The building is a 122 unit motel. The system consists of six rows of ten collectors and three rows of eleven collectors (1990 square feet) mounted on the roof. Griswald flow control valves were installed to regulate the flow to each row. Two Heliotrope electronic thermometers with a combined capability of measuring the temperatures of 22 different locations were installed for monitoring purposes. Engineering drawings, component specifications, and operator instructions are included.

None

1980-10-01T23:59:59.000Z

379

Affordable Solar Hot Water and Power LLC | 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 SolarElectricEnergy Information Lightning Dock Area (CunniffAffinity WindHot Water

380

Driving Demand for Home Energy Improvements: Motivating residential customers to invest in comprehensive upgrades that eliminate energy waste, avoid high utility bills, and spur the economy  

E-Print Network [OSTI]

water heater replacement, air conditioner replacement, solarwater heater replacement, air conditioner replacement, solar

Fuller, Merrian C.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters solar water" 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

Solar Water Splitting: Photocatalyst Materials Discovery and Systems Development  

SciTech Connect (OSTI)

Hydrogen promises to be an attractive transportation fuel in the post-fossil fuel era. Relatively abundant and clean burning (water being the principal byproduct), hydrogen offers the potential to significantly reduce greenhouse gas emissions. However, there are significant technical barriers that require solutions before hydrogen can be implemented in large scale. These are: · Sources (e.g. hydrocarbon, water) · Transportation · Storage Each of the aforementioned barriers carries with it important considerations. First, would a hydrocarbon-based hydrogen source be of any benefit compared to conventional fossil fuels? Second, will a system based on centralized generation and distribution be viable? Finally, methods of on-board storage, whether they are liquefaction, adsorption, or intercalation, are far from optimized. The scope of this program is limited to hydrogen generation, specifically generation using solarinitiated water electrolysis. Though concept of making hydrogen using water and sunlight may sound somewhat far-fetched, in reality the concept is very real. Since the discovery of solar-generated hydrogen, termed photoelectrochemical hydrogen, nearly 30 years ago by Fujishima and Honda, significant advances in both fundamental understanding and technological capability have been made. Using solar radiation to generate hydrogen in a fashion akin to using solar to generate electricity offers many advantages. First, hydrogen can be generated at the point of use, reducing the importance of transportation. Second, using water as the hydrogen source eliminates greenhouse gas evolution and the consequences that come with it. Finally, because the process uses very little electricity (pumps and compressors predominantly), the quantity of chemical fuel produced far exceeds the amount of electricity consumed. Consequently, there is some level of truth to the notion that photoelectrochemically-derived hydrogen offers the potential to nearly eliminate greenhouse gas emissions from the transportation landscape. This report focuses primarily on the technical issues inherent to developing an economically viable photoelectrochemical hydrogen system. This involves research intended to address technology gaps as well as research to address commercial feasibility. Though a firm cost target is not identified explicitly, much of the economics are presented in terms of “dollars per gallon of gasoline equivalent” ($/gge). Obviously this is a moving target, but it is important to understand cost in terms of current gasoline pricing, since the intended target is gasoline replacement. However, this does put the cost contribution into a perspective that at least allows for a reasonable assessment of technological viability. It also allows for the identification of need areas beyond the obvious technology gaps.

McNulty, Thomas F.

2008-05-02T23:59:59.000Z

382

PROJECTS FROM FEDERAL REGION IX DEPARTMENT OF ENERGY APPROPRIATE ENERGY TECHNOLOGY PROGRAM PART II  

E-Print Network [OSTI]

problems. ) The solar water heater is a small on-siteThe existing electric water heater system provides storagebreadbox solar hot water heaters. Originally the tribe

Case, C.W.

2012-01-01T23:59:59.000Z

383

The effects of wavelength, metals, and reactive oxygen species on the sunlight inactivation of microorganisms: observations and applications to the solar disinfection of drinking water  

E-Print Network [OSTI]

Solar Disinfection of Drinking Water and Oral Rehydrationof Boiling to Disinfect Drinking Water in Rural Vietnam.Solar disinfection of drinking water and diarrhoea in Maasai

Fisher, Michael Benjamin

2011-01-01T23:59:59.000Z

384

Promising freeze protection alternatives in solar domestic hot water systems  

SciTech Connect (OSTI)

Since the gains associated with solar thermal energy technologies are comparatively small in relation to the required capital investment, it is vital to maximize conversion efficiency. While providing the necessary function of freeze protection, the heat exchanger commonly included in solar domestic water heating systems represents a system inefficiency. This thesis explores two alternate methods of providing freeze protection without resorting to a heat exchanger. Commonly, collectors are made of rigid copper tubes separated by copper or aluminum fins. Cracking damage can occur when water is allowed to freeze and expand inside the non compliant tubes. The possibility of making collectors out of an elastic material was investigated and shown to be effective. Since unlike copper, elastomers typically have low thermal conductivities, the standard collector performance prediction equations do not apply. Modified thermal performance prediction equations were developed which can be used for both low and high thermal conductivity materials to provide accurate predictions within a limited range of plate geometries. An elastomeric collector plate was then designed and shown to have comparable performance to a copper plate collector whose aperture area is approximately 33% smaller. Another options for providing freeze protection to an SDHW system is to turn it off during the winter. Choosing a three-season operating period means two things. First, the system will have different optimums such as slope and collector area. Second, the wintertime solar energy incident on the collector is unavailable for meeting a heating load. However, the system`s heat exchanger becomes unnecessary and removing it increases the amount of energy that arrives at the storage tank during those periods in which the system is operating.

Bradley, D.E.

1997-12-31T23:59:59.000Z

385

Solar lease grant program. Technical progress report  

SciTech Connect (OSTI)

Progress on a lease program for the installation of a solar water heater with no installation charge is reported. Information on the announcement of the program, the selection of participants, the contractural agreement, progress on installation of equipment, monitoring, and evaluation is summarized. The status of the budget concerned with the program is announced. Forms used for applications for the program and an announcement from Resource Alternatives for Cilco customers are presented.

Not Available

1981-04-01T23:59:59.000Z

386

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

387

Mandating Solar Hot Water by California Local Governments: Legal Issues  

E-Print Network [OSTI]

the county building code to require solar energy to be thebuilding code, in accord with the energy element of its general plan, to require solar

Hoffman,, Peter C.

1981-01-01T23:59:59.000Z

388

The Role of Confined Water in Ionic Liquid Electrolytes for Dye-Sensitized Solar Cells  

E-Print Network [OSTI]

The Role of Confined Water in Ionic Liquid Electrolytes for Dye- Sensitized Solar Cells Jiwon Jeon %) for applications such as nonvolatile electrolytes for dye-sensitized solar cells (DSSCs). This suggests a strategy Structure, Quantum Chemistry,General Theory The dye-sensitized solar cell (DSSC) proposed by Gratzel et al.1

Goddard III, William A.

389

A photonic nano-architecture is designed to enhance solar water splitting effi-  

E-Print Network [OSTI]

energy into hydrogen. However, the solar- to-H2 conversion efficiency is still very low due to rapid bulk artificial photosynthesis routes using solar energy to produce H2 or other fuels is an attractive scientificA photonic nano-architecture is designed to enhance solar water splitting effi- ciency

Steiner, Ullrich

390

Fuels from Water, CO2, and Solar Energy Prof. Aldo Steinfeld  

E-Print Network [OSTI]

Fuels from Water, CO2, and Solar Energy Prof. Aldo Steinfeld Department of Mechanical and Process fuels make use of concentrated solar radiation as the energy source of high-temperature process heat Engineering, ETH Zurich, Switzerland and Solar Technology Laboratory, Paul Scherrer Institute, Switzerland

Ponce, V. Miguel

391

Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal waters  

E-Print Network [OSTI]

Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal waters in the upper ocean, the vertical distribution of solar radiation (ESR) in the shortwave domain plays (2005), Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal

Lee, Zhongping

392

Solar Swimming Pool 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) "of EnergyEnergyENERGYWomenthe House Committee on Energy andDepartment ofAnShare yourA NewGrowth ofWhile

393

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

394

Boston solar retrofits: studies of solar access and economics  

SciTech Connect (OSTI)

Studies of solar access and solar retrofit economics are described for residential applications in the City of Boston. The study of solar access was based upon a random sample of 94 buildings; the sample was stratified to ensure a broad geographic representation from the city's various sections. Using available data on the heights and orientations of the sampled structures and surrounding buildings, each building's hourly access to sunlight was computed separately for the roof and south facing walls. These data were then aggregated by broad structural classifications in order to provide general measures of solar access. The second study was a comparative analysis of the economics of several solar heating and hot water systems. An active hot water system, installed using pre-assembled, commercially purchased equipment, was selected as a reference technology. A variety of measures of economic performance were computed for this system, with and without existing tax credits and under various financing arrangements. Next, a number of alternative approaches for solar space and water heating were identified from interviews with individuals and groups involved in solar retrofit projects in the Boston area. The objective was to identify approaches that many of those interviewed believe to be low-cost means of applying solar energy in residential settings. The approaches selected include thermal window covers, wall collectors, bread box water heaters, and sun spaces. Preliminary estimates of the performance of several representative designs were developed and the economics of these designs evaluated.

Shapiro, M.

1980-11-01T23:59:59.000Z

395

Water use and supply concerns for utility-scale solar projects in the Southwestern United States.  

SciTech Connect (OSTI)

As large utility-scale solar photovoltaic (PV) and concentrating solar power (CSP) facilities are currently being built and planned for locations in the U.S. with the greatest solar resource potential, an understanding of water use for construction and operations is needed as siting tends to target locations with low natural rainfall and where most existing freshwater is already appropriated. Using methods outlined by the Bureau of Land Management (BLM) to determine water used in designated solar energy zones (SEZs) for construction and operations & maintenance, an estimate of water used over the lifetime at the solar power plant is determined and applied to each watershed in six Southwestern states. Results indicate that that PV systems overall use little water, though construction usage is high compared to O&M water use over the lifetime of the facility. Also noted is a transition being made from wet cooled to dry cooled CSP facilities that will significantly reduce operational water use at these facilities. Using these water use factors, estimates of future water demand for current and planned solar development was made. In efforts to determine where water could be a limiting factor in solar energy development, water availability, cost, and projected future competing demands were mapped for the six Southwestern states. Ten watersheds, 9 in California, and one in New Mexico were identified as being of particular concern because of limited water availability.

Klise, Geoffrey Taylor; Tidwell, Vincent Carroll; Reno, Marissa Devan; Moreland, Barbara D.; Zemlick, Katie M.; Macknick, Jordan [National Renewable Energy Laboratory Golden, CO] [National Renewable Energy Laboratory Golden, CO

2013-07-01T23:59:59.000Z

396

Final report : testing and evaluation for solar hot water reliability.  

SciTech Connect (OSTI)

Solar hot water (SHW) systems are being installed by the thousands. Tax credits and utility rebate programs are spurring this burgeoning market. However, the reliability of these systems is virtually unknown. Recent work by Sandia National Laboratories (SNL) has shown that few data exist to quantify the mean time to failure of these systems. However, there is keen interest in developing new techniques to measure SHW reliability, particularly among utilities that use ratepayer money to pay the rebates. This document reports on an effort to develop and test new, simplified techniques to directly measure the state of health of fielded SHW systems. One approach was developed by the National Renewable Energy Laboratory (NREL) and is based on the idea that the performance of the solar storage tank can reliably indicate the operational status of the SHW systems. Another approach, developed by the University of New Mexico (UNM), uses adaptive resonance theory, a type of neural network, to detect and predict failures. This method uses the same sensors that are normally used to control the SHW system. The NREL method uses two additional temperature sensors on the solar tank. The theories, development, application, and testing of both methods are described in the report. Testing was performed on the SHW Reliability Testbed at UNM, a highly instrumented SHW system developed jointly by SNL and UNM. The two methods were tested against a number of simulated failures. The results show that both methods show promise for inclusion in conventional SHW controllers, giving them advanced capability in detecting and predicting component failures.

Caudell, Thomas P. (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; He, Hongbo (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; Menicucci, David F. (Building Specialists, Inc., Albuquerque, NM) [Building Specialists, Inc., Albuquerque, NM; Mammoli, Andrea A. (University of New Mexico, Albuquerque, NM) [University of New Mexico, Albuquerque, NM; Burch, Jay (National Renewable Energy Laboratory, Golden CO) [National Renewable Energy Laboratory, Golden CO

2011-07-01T23:59:59.000Z

397

Evolution of the U.S. Energy Service Company Industry: Market Size and Project Performance from 1990-2008  

E-Print Network [OSTI]

drives Water conservation Water heaters Windows Exit signsThermostats Drain water heat recovery Water heater heatpumps Solar water heaters Motor retrofit New/replacement

Goldman, Charles A.

2013-01-01T23:59:59.000Z

398

Improving the efficiency of water splitting in dye-sensitized solar cells by using a biomimetic  

E-Print Network [OSTI]

Improving the efficiency of water splitting in dye-sensitized solar cells by using a biomimetic studied this problem in dye-sensitized solar cells where a molecular dye and a porous TiO2 electrode act been demonstrated using dye-sensitized electrodes. The quantum yield for water splitting in these dye

399

The development of a solar thermal water purification, heating, and power generation system: A case study.  

E-Print Network [OSTI]

The development of a solar thermal water purification, heating, and power generation system: A case, none of the existing concentrated solar power systems (trough, dish, and tower) that have been the potential of an invention directed to a water purification system that also recovers power from generated

Wu, Mingshen

400

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.

Note: This page contains sample records for the topic "heaters solar water" 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

The analysis of water use and water status of plants in a fluid-roof solar greenhouse  

E-Print Network [OSTI]

of MASTER OF SCIENCE May 1981 Major Subject: Soil Science THE ANALYSIS OF WATER USE AND WATER STATUS OF PLANTS IN A FLL'ID-ROOF SOLAR GREENHOUSE A Thesis by GARY CLAUDE HEATHMAN Approved as to style and content by: arrman o ommrttee ea o epart nt... em er Mem r May, 1981 ABSTRACT The Analysis of Water Use And Water Status of Plants in a Fluid-roof Solar Greenhouse. (May 1981) Gary Claude Heathman, B. S. , Texas A8;M University Chairman of Advisory Committee: Dr. C. H. M. van Bavel...

Heathman, Gary Claude

1981-01-01T23:59:59.000Z

402

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

403

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

404

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

405

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

406

City Water Light and Power- Solar Rewards Program  

Broader source: Energy.gov [DOE]

'''''Note: Funding for the Solar Rewards program has been exhausted. Check the program web site for more information regarding additional funding, expected March 2013.'''''...

407

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

408

Comparison Between TRNSYS Software Simulation and F-Chart Program on Solar Domestic Hot Water System  

E-Print Network [OSTI]

This study presents the accuracy test of a TRNSYS Solar Domestic Hot Water (SDHW) System simulation. The testing is based on comparing the results with the F-Chart software. The selected system to carry out the tests was the Active Solar Domestic...

Haberl, J. S.; Baltazar, J. C.; Mao, C.

2012-01-01T23:59:59.000Z

409

Progress Energy Florida- SunSense Solar Water Heating with EnergyWise  

Broader source: Energy.gov [DOE]

Progress Energy Florida (PEF) launched the ''Solar Water Heating with EnergyWise Program'' in February 2007 to encourage its residential customers to participate in its load control program and...

410

FirstEnergy (West Penn Power)- Residential Solar Water Heating Program (Pennsylvania)  

Broader source: Energy.gov [DOE]

West Penn Power, a First Energy utility, provides rebates to residential customers for purchasing and installing qualifying solar water heating systems. Eligible systems may receive a rebate of up...

411

Investigation of a Novel Solar Assisted Water Heating System with Enhanced Energy Yield for Buildings  

E-Print Network [OSTI]

This paper presented the concept, prototype application, operational performance and benefits relating to a novel solar assisted water heating system for building services. It was undertaken through dedicated theoretical analysis, computer...

Zhang, X.; Zhao, X.; Xu, J.; Yu, X.

2012-01-01T23:59:59.000Z

412

Spirasol : improvements to semi-continuous solar disinfection water treatment systems  

E-Print Network [OSTI]

An experimental study was carried out to determine the feasibility of an original point of use solar water disinfection system created by the author and named "Spirasol." The study primarily focused on the comparison of ...

Loux, Brian Michael, 1981-

2005-01-01T23:59:59.000Z

413

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

414

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

415

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

416

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

417

California Solar Initiative- Low-Income Solar Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

The California Public Utilities Commission (CPUC) voted in October 2011 to create the California Solar Initiative (CSI) Thermal Low-Income program for single and multifamily residential properties....

418

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

419

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

420

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

Note: This page contains sample records for the topic "heaters solar water" 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

Behavioral Perspectives on Home Energy Audits: The Role of Auditors, Labels, Reports, and Audit Tools on Homeowner Decision Making  

E-Print Network [OSTI]

panels.   Install  a  tankless  water  heater.  Install  a  high  efficiency  gas  water  heater.  Install  a  solar  water  heater  and  use  your  current  

Ingle, Aaron

2013-01-01T23:59:59.000Z

422

Catalog of DC Appliances and Power Systems  

E-Print Network [OSTI]

Lighting-Torchiere Electric Other Electric Water HeatersSolar Water Heaters Color Televisions and Set-Top BoxesTorchiere Electric Water Heaters Refrigerators Electric

Garbesi, Karina

2012-01-01T23:59:59.000Z

423

PROJECTS FROM FEDERAL REGION IX DOE APPROPRIATE ENERGY TECHNOLOGY PILOT PROGRAM - PART I  

E-Print Network [OSTI]

6. Western Pacific Solar Hot Water Heater Construction andA schedule in pool pump, water heater, clothes dryer, airappliances include the water heater, clothes dryer, and

Case, C.W.

2011-01-01T23:59:59.000Z

424

Numerical Simulation Study on Transpired Solar Air Collector  

E-Print Network [OSTI]

The unglazed transpired solar air collector is now a well-recognized solar air heater for heating outside air directly. In this article, researchers introduced numerical simulation tools into the solar air collector research area, analyzed...

Wang, C.; Guan, Z.; Zhao, X.; Wang, D.

2006-01-01T23:59:59.000Z

425

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.

426

Retrofit Integrated Space & Water Heating: Field Assessment,...  

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

directly replace the existing forced air furnace and water heater, and consist of a high efficiency water heater or boiler and an optimized hydronic air handler. The air handlers...

427

Designing of a prototype heat-sealer to manufacture solar water sterilization pouches for use in developing nations  

E-Print Network [OSTI]

Water purification proves to be a difficult task in many developing nations. The SODIS (SOlar water DISinfection) process is a method which improves the microbiological quality of water making it safer for drinking and ...

Quinlan, Saundra S

2005-01-01T23:59:59.000Z

428

Gainesville Regional Utilities- Solar Water Heating Rebate Program  

Broader source: Energy.gov [DOE]

The Gainesville Regional Utilities (GRU) Solar Rebate Program, established in early 1997 as part of GRU's demand-side management initiatives, provides rebates of $500 to residential customers of...

429

Clark Public Utilities- Solar Energy Equipment Loan  

Broader source: Energy.gov [DOE]

Clark Public Utilities offers financing available to its customers for the purchase and installation of residential solar equipment. Loans up to $10,000 are available for solar pool heaters and...

430

Energy Blog | Department of Energy  

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

Illustration of a solar water heater. Heat Transfer Fluids for Solar Water Heating Systems Choosing the right fluid for your solar water heater is important. Learn more about...

431

Relationships between inherent optical properties and the depth of penetration of solar radiation in optically complex coastal waters  

E-Print Network [OSTI]

Relationships between inherent optical properties and the depth of penetration of solar radiation optical properties and the depth of penetration of solar radiation in optically complex coastal waters, J

Strathclyde, University of

432

Solar energy system performance evaluation: seasonal report for IBM System 4 at Clinton, Mississippi  

SciTech Connect (OSTI)

The IBM System 4 Solar Energy System was designed to provide 35 percent of the space heating and 62 percent of the domestic hot water (DHW) preheating for a single-family residence located within the United States. The system is a prepackaged unit called the Remote Solar Assembly which has been integrated into the heating and DHW system in a dormitory in Clinton, Mississippi. The system consists of 259 square feet of Solaron 2001 Series flat-plate-air collectors, a rock thermal storage containing 5 1/2 ton of rock, heat exchangers, blowers, a 52 gallon preheat tank, controls, and associated plumbing, two 30 gallon electric water heaters draw water from the preheat tank. A 20 kilowatt, duct mounted, electric heater supplies auxiliary energy. This system which has three modes of system operation was activated September, 1978. A system performance assessment is presented.

None

1980-07-01T23:59:59.000Z

433

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

434

Colorado State University program for developing, testing, evaluating and optimizing solar heating and cooling systems  

SciTech Connect (OSTI)

The objective is to develop and test various integrated solar heating, cooling and domestic hot water systems, and to evaluate their performance. Systems composed of new, as well as previously tested, components are carefully integrated so that effects of new components on system performance can be clearly delineated. The SEAL-DOE program includes six tasks which have received funding for the 1991--92 fifteen-month period. These include: (1) a project employing isothermal operation of air and liquid solar space heating systems, (2) a project to build and test several generic solar water heaters, (3) a project that will evaluate advanced solar domestic hot water components and concepts and integrate them into solar domestic hot water systems, (4) a liquid desiccant cooling system development project, (5) a project that will perform system modeling and analysis work on solid desiccant cooling systems research, and (6) a management task. The objectives and progress in each task are described in this report.

Not Available

1992-03-23T23:59:59.000Z

435

Colorado State University program for developing, testing, evaluating and optimizing solar heating and cooling systems  

SciTech Connect (OSTI)

The objective is to develop and test various integrated solar heating, cooling and domestic hot water systems, and to evaluate their performance. Systems composed of new, as well as previously tested, components are carefully integrated so that effects of new components on system performance can be clearly delineated. The eight-month program for 1990 is separated into seven tasks. There are tasks for each of the three solar houses, a project to build and test several generic solar water heaters, a project that will evaluate advanced solar domestic hot water components and concepts and integrate them into solar domestic hot water systems, a management task, and a task funding travel to attend the Field Monitoring for a Purpose'' workshop which was held April 2--5, 1990, in Gothenburg, Sweden. The objectives and progress in each task are described in this report. 7 figs., 4 tabs.

Not Available

1990-11-01T23:59:59.000Z

436

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

437

Strategy Guideline: Proper Water Heater Selection  

SciTech Connect (OSTI)

This document is no longer available. Please contact Cheryn.Metzger@nrel.gov for further information.

Hoeschele, M.; Springer, D.; German, A.; Staller, J.; Zhang, Y.

2012-08-01T23:59:59.000Z

438

Tankless Water Heaters: Do They Really Work?  

Broader source: Energy.gov [DOE]

This presentation was delivered at the U.S. Department of Energy Building America Technical Update meeting on July 24-26, 2012.

439

Commercial Water Heaters | Department of Energy  

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 fromDepartmentTieCelebrate Earth Codesthe NaturalCommercial Building1Program

440

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

Note: This page contains sample records for the topic "heaters solar water" 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

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

442

Water Heaters (Storage Oil) | 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

443

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 &

444

DOE_Water_Heater_Meeting_111612.pdf  

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 Deliciouscritical_materials_workshop_presentations.pdfSTD-1040-93Decemberof EnergySeptember 6, 2012 ScottNovember

445

Water Heater Controller - Energy Innovation Portal  

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 MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and Materials Disposition Information

446

Storage Gas Water Heaters | Department of Energy  

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 |Energy Usage » SearchEnergyDepartmentScopingOverviewFranklinStatusJ.R.StevenStop.Storage

447

Tankless Gas Water Heaters | Department of Energy  

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 |Energy Usage »of Energy StrainClient updateTRI-STATE GENERATION 1.Take9/09Audit

448

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

449

Residential Water Heaters Webinar | Department of Energy  

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 LPROJECTS IN RENEWABLE ENERGY FOR HIGHResidentialFreezersofResidential

450

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.

451

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...

452

List of Solar Water Heat Incentives | 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 Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place:KeystoneSolarList ofPassive SolarRoofsIncentives Jump

453

STATE OF CALIFORNIA DOMESTIC HOT WATER (DHW)  

E-Print Network [OSTI]

,000 Btu/hr), electric resistance and heat pump water heaters, list Energy Factor (EF). For large gas storage water heaters (rated input of greater than 75,000 Btu/hr), list Recovery Efficiency (RE), Thermal Efficiency, Standby Loss and Rated Input. For instantaneous gas water heaters, list the Thermal Efficiency

454

Efficient Solar Concentrators: Affordable Energy from Water and Sunlight  

SciTech Connect (OSTI)

Broad Funding Opportunity Announcement Project: Teledyne is developing a liquid prism panel that tracks the position of the sun to help efficiently concentrate its light onto a solar cell to produce power. Typically, solar tracking devices have bulky and expensive mechanical moving parts that require a lot of power and are often unreliable. Teledyne’s liquid prism panel has no bulky and heavy supporting parts—instead it relies on electrowetting. Electrowetting is a process where an electric field is applied to the liquid to control the angle at which it meets the sunlight above and to control the angle of the sunlight to the focusing lensthe more direct the angle to the focusing lens, the more efficiently the light can be concentrated to solar panels and converted into electricity. This allows the prism to be tuned like a radio to track the sun across the sky and steer sunlight into the solar cell without any moving mechanical parts. This process uses very little power and requires no expensive supporting hardware or moving parts, enabling efficient and quiet rooftop operation for integration into buildings.

None

2010-01-01T23:59:59.000Z

455

Initiative for the Transformation and Strengthening of the Solar Water  

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 Solar Power BasicsGermany:InformationInformationInformationDFID

456

Sandia National Laboratories: solar-driven thermochemical water splitting  

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 MayAtmosphericNuclear Security Administration the1developmentturbineredox-activeNational Solar Thermal Testthermal storage

457

FEMP Solar Hot Water Calculator | 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 Solar Power Basics (TheEtelligence (Smart Grid Project)CompanyFEM Electric

458

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

459

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

460

High Efficiency Generation of Hydrogen Fuels Using Solar Thermochemical Splitting of Water  

SciTech Connect (OSTI)

The objective of this work is to identify economically feasible concepts for the production of hydrogen from water using solar energy. The ultimate project objective was to select one or more competitive concepts for pilot-scale demonstration using concentrated solar energy. Results of pilot scale plant performance would be used as foundation for seeking public and private resources for full-scale plant development and testing. Economical success in this venture would afford the public with a renewable and limitless source of energy carrier for use in electric power load-leveling and as a carbon-free transportation fuel. The Solar Hydrogen Generation Research (SHGR) project embraces technologies relevant to hydrogen research under the Office of Hydrogen Fuel Cells and Infrastructure Technology (HFCIT) as well as concentrated solar power under the Office of Solar Energy Technologies (SET). Although the photoelectrochemical work is aligned with HFCIT, some of the technologies in this effort are also consistent with the skills and technologies found in concentrated solar power and photovoltaic technology under the Office of Solar Energy Technologies (SET). Hydrogen production by thermo-chemical water-splitting is a chemical process that accomplishes the decomposition of water into hydrogen and oxygen using only heat or a combination of heat and electrolysis instead of pure electrolysis and meets the goals for hydrogen production using only water and renewable solar energy as feed-stocks. Photoelectrochemical hydrogen production also meets these goals by implementing photo-electrolysis at the surface of a semiconductor in contact with an electrolyte with bias provided by a photovoltaic source. Here, water splitting is a photo-electrolytic process in which hydrogen is produced using only solar photons and water as feed-stocks. The thermochemical hydrogen task engendered formal collaborations among two universities, three national laboratories and two private sector entities. The photoelectrochemical hydrogen task included formal collaborations with three universities and one national laboratory. The formal participants in these two tasks are listed above. Informal collaborations in both projects included one additional university (the University of Nevada, Reno) and two additional national laboratories (Lawrence Livermore National Laboratory and Lawrence Berkeley National Laboratory).

Heske, Clemens; Moujaes, Samir; Weimer, Alan; Wong, Bunsen; Siegal, Nathan; McFarland, Eric; Miller, Eric; Lewis, Michele; Bingham, Carl; Roth, Kurth; Sabacky, Bruce; Steinfeld, Aldo

2011-09-29T23:59:59.000Z

Note: This page contains sample records for the topic "heaters solar water" 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

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

462

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.

463

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

464

Solar Hot Water Resources and Technologies | Department of Energy  

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 |Energy Usage » SearchEnergyDepartmentScoping Study |4 Solar BackgroundGivesof EnergyHot

465

Solar Water Heating: SPECIFICATION, CHECKLIST AND GUIDE | Department of  

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 of Energy U.S. DepartmentCommitmentGovernmentSmartDay 7Solar panelsEnergy

466

Burbank Water and Power- Residential and Commercial Solar Support Program  

Broader source: Energy.gov [DOE]

'''''Burbank Water and Power (BWP) accepted applications for photovoltaic (PV) rebates throughout July 2013. Winners were determined through a lottery on August 12, 2013. Only systems under 30 kW...

467

Corona Department of Water and Power- Solar Partnership Rebate Program  

Broader source: Energy.gov [DOE]

Corona Department of Water and Power is providing rebates for residential and commercial photovoltaic (PV) systems. The rebate amount for 2013 is $1.22 per watt up to $3,660 for residential systems...

468

Effects of Electron Trapping and Protonation on the Efficiency of Water-Splitting Dye-Sensitized Solar Cells  

E-Print Network [OSTI]

energy in fuels is a key challenge for solar energy research. Water-splitting dye- sensitized light illumination. In these cells, a mesoporous anatase TiO2 anode is sensitized with a dye and a water- sensitized solar cells. In nanocrystalline TiO2 films, trap states are thought to be the related

469

The role of water vapor and solar radiation in determining temperature changes and trends measured at Armagh, 18812000  

E-Print Network [OSTI]

The role of water vapor and solar radiation in determining temperature changes and trends measured in atmospheric circulation, are discussed. Citation: Stanhill, G. (2011), The role of water vapor and solar radiation in determining temperature changes and trends measured at Armagh, 1881­2000, J. Geophys. Res., 116

470

Life in the Solar System Assume we need energy, liquid water, and organic materials.  

E-Print Network [OSTI]

high pressure, no sunlight, high temperature. Not much chance of life there. Gas Giants #12;The moonsLife in the Solar System Assume we need energy, liquid water, and organic materials. #12;Size N2 Titan Thick atmo Thick atmo Thin atmo #12;Small rocky bodies are unlikely to host life: too hot

Shirley, Yancy

471

Modelling of a solar-powered supercritical water biomass gasifier Laurance A Watson1  

E-Print Network [OSTI]

is incorporated that recovers the waste heat proceeding biomass gasification. Under the ideal assumptions applied exercise to design a solar supercritical water gasification (SCWG) reactor. A formative reactor concept the waste heat (steam) of a downstream Fischer- Tropsch process. An intermediate heat exchange unit

472

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

473

Estimating the Annual Water and Energy Savings in Texas A & M University Cafeterias using Low Flow Pre-Rinse Spray Valves  

E-Print Network [OSTI]

equal to 100,000 British thermal units (BTU).1 Therm is equal to 29.3 kWh Temperature rise through Heater The difference in the water temperature supplied to the water heater, and the water exiting the water heater. This is typically 70*F, which... assumes a water line temperature of 75*F and a water heater setting of 145*F Water Heater Efficiency The percentage of energy delivered to the water divided by the amount of energy consumed by the water heater viii TABLE OF CONTENTS...

Rebello, Harsh Varun

2011-08-08T23:59:59.000Z

474

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

475

Soil science Disinfection of drain water in greenhouses  

E-Print Network [OSTI]

Soil science Disinfection of drain water in greenhouses using a wet condensation heater C Steinberg November 1994) Summary — A wet condensation heater has been modified to disinfect drain water were introduced into the disinfection circuit above the heater. Water was checked downstream

Paris-Sud XI, Université de

476

Behavioral Perspectives on Home Energy Audits: The Role of Auditors, Labels, Reports, and Audit Tools on Homeowner Decision Making  

E-Print Network [OSTI]

efficiency  windows   Solar  Panel   Solar  Water  Heater  Upgrade  -­?  Solar  panels        Install   photovoltaic  Adding  or  maintaining  solar  panels   Number  of  homes  

Ingle, Aaron

2013-01-01T23:59:59.000Z

477

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

478

Protecting Solar Rights in California Through an Exploration of the California Water Doctrine  

E-Print Network [OSTI]

program called the California Solar Initiative.  This Table 1.  California Solar Legislation  Solar Law Protecting Solar Rights in California Through an 

Fedman, Anna

2011-01-01T23:59:59.000Z

479

Colorado State University program for developing, testing, evaluating and optimizing solar heating and cooling systems. Project status report, January--February 1992  

SciTech Connect (OSTI)

The objective is to develop and test various integrated solar heating, cooling and domestic hot water systems, and to evaluate their performance. Systems composed of new, as well as previously tested, components are carefully integrated so that effects of new components on system performance can be clearly delineated. The SEAL-DOE program includes six tasks which have received funding for the 1991--92 fifteen-month period. These include: (1) a project employing isothermal operation of air and liquid solar space heating systems, (2) a project to build and test several generic solar water heaters, (3) a project that will evaluate advanced solar domestic hot water components and concepts and integrate them into solar domestic hot water systems, (4) a liquid desiccant cooling system development project, (5) a project that will perform system modeling and analysis work on solid desiccant cooling systems research, and (6) a management task. The objectives and progress in each task are described in this report.

Not Available

1992-03-23T23:59:59.000Z

480

Energy Efficiency Country Study: Republic Of South Africa  

E-Print Network [OSTI]

TARGET APPLIANCE Solar Water Heater (low and high pressure)content/solar-water-heaters-save- electricity-south-africaOffer Program SWH – Solar Water Heater F IGURES F IGURE 1. E

Can, Stephane de la Rue du

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heaters solar water" 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

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

482

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

483

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....

484

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

485

A Fully Integrated Nanosystem of Semiconductor Nanowires for Direct Solar Water Splitting  

SciTech Connect (OSTI)

Artificial photosynthesis, the biomimetic approach to converting sunlight?s energy directly into chemical fuels, aims to imitate nature by using an integrated system of nanostructures, each of which plays a specific role in the sunlight-to-fuel conversion process. Here we describe a fully integrated system of nanoscale photoelectrodes assembled from inorganic nanowires for direct solar water splitting. Similar to the photosynthetic system in a chloroplast, the artificial photosynthetic system comprises two semiconductor light absorbers with large surface area, an interfacial layer for charge transport, and spatially separated cocatalysts to facilitate the water reduction and oxidation. Under simulated sunlight, a 0.12percent solar-to-fuel conversion efficiency is achieved, which is comparable to that of natural photosynthesis. The result demonstrates the possibility of integrating material components into a functional system that mimics the nanoscopic integration in chloroplasts. It also provides a conceptual blueprint of modular design that allows incorporation of newly discovered components for improved performance.

Liu, Chong; Tang, Jinyao; Chen, HaoMing; Liu, Bin; Yang, Peidong

2013-02-21T23:59:59.000Z

486

On the State of Water Ice on Saturn's Moon Titan and Implications to Icy Bodies in the Outer Solar System  

E-Print Network [OSTI]

, `primordial' water ice on Titan might be crystalline unless amorphous ice can be produced by interactionOn the State of Water Ice on Saturn's Moon Titan and Implications to Icy Bodies in the Outer Solar ReceiVed: April 25, 2009; ReVised Manuscript ReceiVed: July 9, 2009 The crystalline state of water ice

Jewitt, David C.

487

Solar process heat technology in action: The process hot water system at the California Correctional Institution at Tehachapi  

SciTech Connect (OSTI)

Solar process heat technology relates to solar thermal energy systems for industry, commerce, and government. Applications include water preheating and heating, steam generation, process hot air, ventilation air heating, and refrigeration. Solar process heat systems are available for commercial use. At the present time, however, they are economically viable only in niche markets. This paper describes a functioning system in one such market. The California Department of Corrections (CDOC), which operates correctional facilities for the state of California, uses a solar system for providing hot water and space heating at the California Correctional Institute at Tehachapi (CCI/Tehachapi). CCI/Tehachapi is a 5100-inmate facility. The CDOC does not own the solar system. Rather, it buys energy from private investors who own the solar system located on CCI/Tehachapi property; this arrangement is part of a long-term energy purchase agreement. United Solar Technologies (UST) of Olympia Washington is the system operator. The solar system, which began operating in the fall of 1990, utilizes 2677 m{sup 2} (28,800 ft{sup 2}) of parabolic through solar concentrators. Thermal energy collected by the system is used to generate hot water for showers, kitchen operations, and laundry functions. Thermal energy collected by the system is also used for space heating. At peak operating conditions, the system is designed to meet approximately 80 percent of the summer thermal load. 4 figs., 4 tabs.

Hewett, R. (National Renewable Energy Lab., Golden, CO (United States)); Gee, R.; May, K. (Industrial Solar Technology, Arvada, CO (United States))

1991-12-01T23:59:59.000Z

488

PROCEEDINGS OF 1976 SUMMER WORKSHOP ON AN ENERGY EXTENSION SERVICE  

E-Print Network [OSTI]

March 1974. "Solar Water Heaters You Can Buy or Build,"RESTRICTOR INSULATE WATER HEATER NIGHT-TIME: THE:RMOSTAT SET$6SQ) Rl\\NGE SPACE HEATER WATER HEATER $2a~ (ENERGY SAVINGS

Authors, Various

2010-01-01T23:59:59.000Z

489

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

490

The influence of stratus, stratocumulus, and altocumulus clouds on the spectral distribution of solar radiation over Antarctic waters  

E-Print Network [OSTI]

ON TEE I I ! 1 INFLUENCE OF STRATUS& STRATOCUMULUS, AND ALTOCUMULUS CLOUDS SPECTRAL DISTRIBUTION OF SOLAR RADIATION OVER ANTARCTIC WATERS A Thesis by JAMES EUGENE PETTETT Submitted to the Graduate College of Texas ARM University... in partial fulfillment of the requirements for the MASTER OF SCIENCE degree of August 1973 Major Subjett: Meteorology THE INFLUENCE OF STRATUS, STRATOCUMULUS, AND ALTOCUMULUS CLOUDS ON THE SPECTRAL DISTRIBUTION OF SOLAR RADIATION OVER ANTARCTIC WATERS...

Pettett, James Eugene

1973-01-01T23:59:59.000Z

491

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

492

Solar powered desalination system  

E-Print Network [OSTI]

2008, uses concentrated solar power to split water. Figurethe main reason the potential for solar power is boundless.a clean energy source, solar power is inexhaustible, fairly

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

493

Solar Contractor Licensing  

Broader source: Energy.gov [DOE]

The California Contractors State License Board administers contractor licenses. The C-46 Solar Contractor license covers active solar water and space heating systems, solar pool heating systems,...

494

Protecting Solar Rights in California Through an Exploration of the California Water Doctrine  

E-Print Network [OSTI]

of photovoltaic (PV) solar panels, grows increasingly more Currently there are  solar panels on one percent of technology.   The number of solar panel installations maybe 

Fedman, Anna

2011-01-01T23:59:59.000Z

495

Eleana near-surface heater experiment final report  

SciTech Connect (OSTI)

This report summarizes the results of a near-surface heater experiment operated at a depth of 23 m in argillite within the Eleana Formation on the Nevada Test Site (NTS). The test geometrically simulated emplacement of a single canister of High-Level Waste (HLW) and was operated at a power level of 2.5 kW for 21 days, followed by 3.8 kW to 250 days, when the power was turned off. Below 85 to 100{sup 0}C, there was good agreement between modeled and measured thermal results in the rock and in the emplacement hole, except for transient transport of water in the heater hole. Above 100{sup 0}C, modeled and measured thermal results increasingly diverged, indicating that the in-situ rock-mass thermal conductivity decreased as a result of dehydration more than expected on the basis of matrix properties. Correlation of thermomechanical modeling and field results suggests that this decrease was caused by strong coupling of thermal and mechanical behavior of the argillite at elevated temperatures. No hole-wall decrepitation was observed in the experiment; this fact and the codrrelation of modeled and measured results at lower temperatures indicate that there is no a priori reason to eliminate argillaceous rocks from further consideration as a host rock for nuclear wastes.

Lappin, A R; Thomas, R K; McVey, D F

1981-04-01T23:59:59.000Z

496

Improving thermosyphon solar domestic hot water system model performance. Final report, March 1994--February 1995  

SciTech Connect (OSTI)

Data from an indoor solar simulator experimental performance test is used to develop a systematic calibration procedure for a computer model of a thermosyphoning, solar domestic hot water heating system with a tank-in-tank heat exchanger. Calibration is performed using an indoor test with a simulated solar collector to adjust heat transfer in the heat exchanger and heat transfer between adjacent layers of water in the storage tank. An outdoor test is used to calibrate the calculation of the friction drop in the closed collector loop. Additional indoor data with forced flow in the annulus of the heat exchanger leads to improved heat transfer correlations for the inside and outside regions of the tank-in-tank heat exchanger. The calibrated simulation model is compared to several additional outdoor tests both with and without auxiliary heating. Integrated draw energies are predicted with greater accuracy and draw temperature profiles match experimental results to a better degree. Auxiliary energy input predictions improve significantly. 63 figs., 29 tabs.

Swift, T.N.

1996-09-01T23:59:59.000Z

497

Fuel from Bacteria, CO2, Water, and Solar Energy: Engineering a Bacterial Reverse Fuel Cell  

SciTech Connect (OSTI)

Electrofuels Project: Harvard is engineering a self-contained, scalable Electrofuels production system that can directly generate liquid fuels from bacteria, carbon dioxide (CO2), water, and sunlight. Harvard is genetically engineering bacteria called Shewanella, so the bacteria can sit directly on electrical conductors and absorb electrical current. This current, which is powered by solar panels, gives the bacteria the energy they need to process CO2 into liquid fuels. The Harvard team pumps this CO2 into the system, in addition to water and other nutrients needed to grow the bacteria. Harvard is also engineering the bacteria to produce fuel molecules that have properties similar to gasoline or diesel fuel—making them easier to incorporate into the existing fuel infrastructure. These molecules are designed to spontaneously separate from the water-based culture that the bacteria live in and to be used directly as fuel without further chemical processing once they’re pumped out of the tank.

None

2010-07-01T23:59:59.000Z

498

Tool for Generating Realistic Residential Hot Water Event Schedules: Preprint  

SciTech Connect (OSTI)

The installed energy savings for advanced residential hot water systems can depend greatly on detailed occupant use patterns. Quantifying these patterns is essential for analyzing measures such as tankless water heaters, solar hot water systems with demand-side heat exchangers, distribution system improvements, and recirculation loops. This paper describes the development of an advanced spreadsheet tool that can generate a series of year-long hot water event schedules consistent with realistic probability distributions of start time, duration and flow rate variability, clustering, fixture assignment, vacation periods, and seasonality. This paper also presents the application of the hot water event schedules in the context of an integral-collector-storage solar water heating system in a moderate climate.

Hendron, B.; Burch, J.; Barker, G.

2010-08-01T23:59:59.000Z

499

Candidate for solar power : a novel desalination technology for coal bed methane produced water.  

SciTech Connect (OSTI)

Laboratory and field developments are underway to use solar energy to power a desalination technology - capacitive deionization - for water produced by remote Coal Bed Methane (CBM) natural gas wells. Due to the physical remoteness of many CBM wells throughout the Southwestern U.S., as shown in Figure 1, this approach may offer promise. This promise is not only from its effectiveness in removing salt from CBM water and allowing it to be utilized for various applications, but also for its potentially lower energy consumption compared to other technologies, such as reverse osmosis. This, coupled with the remoteness (Figure 1) of thousands of these wells, makes them more feasible for use with photovoltaic (solar, electric, PV) systems. Concurrent laboratory activities are providing information about the effectiveness and energy requirements of each technology under various produced water qualities and water reuse applications, such as salinity concentrations and water flows. These parameters are being used to driving the design of integrated PV-powered treatment systems. Full-scale field implementations are planned, with data collection and analysis designed to optimize the system design for practical remote applications. Early laboratory studies of capacitive deionization have shown promise that at common CBM salinity levels, the technology may require less energy, is less susceptible to fouling, and is more compact than equivalent reverse osmosis (RO) systems. The technology uses positively and negatively charged electrodes to attract charged ions in a liquid, such as dissolved salts, metals, and some organics, to the electrodes. This concentrates the ions at the electrodes and reduces the ion concentrations in the liquid. This paper discusses the results of these laboratory studies and extends these results to energy consumption and design considerations for field implementation of produced water treatment using photovoltaic systems.

Hanley, Charles J.; Andelman, Marc (Biosouce, Inc., Worchester, MA); Hightower, Michael M.; Sattler, Allan Richard

2005-03-01T23:59:59.000Z

500

INSTALLATION CERTIFICATE CF-6R-MECH-01 Domestic Hot Water (DHW) (Page 1 of 2)  

E-Print Network [OSTI]

,000 Btu/hr), electric resistance and heat pump water heaters, list Energy Factor (EF). For large gas storage water heaters (rated input of greater than 75,000 Btu/hr), list Recovery Efficiency (RE), Thermal Efficiency, Standby Loss and Rated Input. For instantaneous gas water heaters, list the Thermal Efficiency