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Title: European Regional Climate Zone Modeling of a Commercial Absorption Heat Pump Hot Water Heater

Abstract

High efficiency gas-burning hot water heating takes advantage of a condensing heat exchanger to deliver improved combustion efficiency over a standard non-condensing configuration. The water heating is always lower than the gas heating value. In contrast, Gas Absorption Heat Pump (GAHP) hot water heating combines the efficiency of gas burning with the performance increase from a heat pump to offer significant gas energy savings. An ammonia-water system also has the advantage of zero Ozone Depletion Potential and low Global Warming Potential. In comparison with air source electric heat pumps, the absorption system can maintain higher coefficients of performance in colder climates. In this work, a GAHP commercial water heating system was compared to a condensing gas storage system for a range of locations and climate zones across Europe. The thermodynamic performance map of a single effect ammonia-water absorption system was used in a building energy modeling software that could also incorporate the changing ambient air temperature and water mains temperature for a specific location, as well as a full-service restaurant water draw pattern.

Authors:
 [1];  [1];  [2];  [2];  [1]
  1. ORNL
  2. Stone Mountain Technologies, Inc., Johnson City
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Building Technologies Research and Integration Center (BTRIC)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1361339
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: IEA Heat Pump Conference 2017, Rotterdam, Netherlands, 20170515, 20170518
Country of Publication:
United States
Language:
English

Citation Formats

Sharma, Vishaldeep, Shen, Bo, Keinath, Chris, Garrabrant, Michael A., and Geoghegan, Patrick J. European Regional Climate Zone Modeling of a Commercial Absorption Heat Pump Hot Water Heater. United States: N. p., 2017. Web.
Sharma, Vishaldeep, Shen, Bo, Keinath, Chris, Garrabrant, Michael A., & Geoghegan, Patrick J. European Regional Climate Zone Modeling of a Commercial Absorption Heat Pump Hot Water Heater. United States.
Sharma, Vishaldeep, Shen, Bo, Keinath, Chris, Garrabrant, Michael A., and Geoghegan, Patrick J. 2017. "European Regional Climate Zone Modeling of a Commercial Absorption Heat Pump Hot Water Heater". United States.
@article{osti_1361339,
title = {European Regional Climate Zone Modeling of a Commercial Absorption Heat Pump Hot Water Heater},
author = {Sharma, Vishaldeep and Shen, Bo and Keinath, Chris and Garrabrant, Michael A. and Geoghegan, Patrick J},
abstractNote = {High efficiency gas-burning hot water heating takes advantage of a condensing heat exchanger to deliver improved combustion efficiency over a standard non-condensing configuration. The water heating is always lower than the gas heating value. In contrast, Gas Absorption Heat Pump (GAHP) hot water heating combines the efficiency of gas burning with the performance increase from a heat pump to offer significant gas energy savings. An ammonia-water system also has the advantage of zero Ozone Depletion Potential and low Global Warming Potential. In comparison with air source electric heat pumps, the absorption system can maintain higher coefficients of performance in colder climates. In this work, a GAHP commercial water heating system was compared to a condensing gas storage system for a range of locations and climate zones across Europe. The thermodynamic performance map of a single effect ammonia-water absorption system was used in a building energy modeling software that could also incorporate the changing ambient air temperature and water mains temperature for a specific location, as well as a full-service restaurant water draw pattern.},
doi = {},
url = {https://www.osti.gov/biblio/1361339}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2017},
month = {Sun Jan 01 00:00:00 EST 2017}
}

Conference:
Other availability
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