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Title: Commercial Absorption Heat Pump Water Heater: Beta Prototype Evaluation

Abstract

The Beta version of the Commercial Absorption Heat Pump (CAHP) water heater was evaluated in the environmental chambers at Oak Ridge National Laboratory. Ambient air conditions ranged from 17 to 75 oF and inlet water temperatures ranged from 100 to 120oF in order to capture trends in performance. The unit was operated under full fire (100%) and partial fire (55%). The unit was found to perform at 90% of the project goal at the design conditions of 47oF ambient and 100oF water temperatures. The trends across the full range of environmental conditions were as expected for ambient air temperatures above 32oF. Below this temperature and for the full fire condition, frost accumulated on the evaporator coil. In future work a defrost strategy will be enabled, the unit will be thoroughly cleaned of an oil contamination and the rectifier will be reconfigured in order to meet the design goals and have a field test unit ready in early 2017.

Authors:
 [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1376355
Report Number(s):
ORNL/TM-2016/642
71159
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION

Citation Formats

Geoghegan, Patrick, Ally, Moonis, and Sharma, Vishaldeep. Commercial Absorption Heat Pump Water Heater: Beta Prototype Evaluation. United States: N. p., 2016. Web. doi:10.2172/1376355.
Geoghegan, Patrick, Ally, Moonis, & Sharma, Vishaldeep. Commercial Absorption Heat Pump Water Heater: Beta Prototype Evaluation. United States. doi:10.2172/1376355.
Geoghegan, Patrick, Ally, Moonis, and Sharma, Vishaldeep. Fri . "Commercial Absorption Heat Pump Water Heater: Beta Prototype Evaluation". United States. doi:10.2172/1376355. https://www.osti.gov/servlets/purl/1376355.
@article{osti_1376355,
title = {Commercial Absorption Heat Pump Water Heater: Beta Prototype Evaluation},
author = {Geoghegan, Patrick and Ally, Moonis and Sharma, Vishaldeep},
abstractNote = {The Beta version of the Commercial Absorption Heat Pump (CAHP) water heater was evaluated in the environmental chambers at Oak Ridge National Laboratory. Ambient air conditions ranged from 17 to 75 oF and inlet water temperatures ranged from 100 to 120oF in order to capture trends in performance. The unit was operated under full fire (100%) and partial fire (55%). The unit was found to perform at 90% of the project goal at the design conditions of 47oF ambient and 100oF water temperatures. The trends across the full range of environmental conditions were as expected for ambient air temperatures above 32oF. Below this temperature and for the full fire condition, frost accumulated on the evaporator coil. In future work a defrost strategy will be enabled, the unit will be thoroughly cleaned of an oil contamination and the rectifier will be reconfigured in order to meet the design goals and have a field test unit ready in early 2017.},
doi = {10.2172/1376355},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Oct 14 00:00:00 EDT 2016},
month = {Fri Oct 14 00:00:00 EDT 2016}
}

Technical Report:

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