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Title: Annual Cycle Energy System characteristics and performance

Abstract

The Annual Cycle Energy System (ACES) provides space heating, air conditioning, and domestic water heating while using substantially less energy than competing systems providing the same services. The ACES is based on an electrically driven, unidirectional heat pump that extracts heat from an insulated tank of water during the heating season. As the heat is extracted, most of the water freezes, and the stored ice provides air conditioning in the summer. A single-family residence near Knoxville, Tennessee is being used to demonstrate the energy conserving features of the ACES. A second similar house, the control house, has been used to compare the performance of the ACES to both an electric resistance heating and hot water with central air conditioning system and an air-to-air heat pump system. The results of the first year's operation from November 1977 through mid-September 1978 showed that the ACES consumed 9012 kWh of electricity while delivering an annual coefficient of performance (COP) of 2.78. The control house consumed 20,523 kWh of electricity while delivering an annual COP of 1.13. The second annual cycle was started on December 1978. The ACES was compared with an air-to-air heat pump during this period. During the ice storage portion ofmore » this test year, December 1, 1978 to September 1, 1979, 5705 kWh of electricity was used by the ACES, compared to 12,014 kWh for the control house. The respective COPs are 1.40 for the control house with the heat pump and 2.99 for the ACES house during this period. Annual energy consumption for the test year was 6597 kWh and the annual COPs were 1.41 for the control house and 2.81 for ACES. ACES is achieving its anticipated performance. The ACES concept and its general engineering performance as compared to conventional HVAC system are described and discussed.« less

Authors:
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
5420989
Report Number(s):
CONF-800524-2
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Conference
Resource Relation:
Conference: International congress on building energy management, Povoa de Varzim, Portugal, 12 May 1980
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ANNUAL CYCLE ENERGY SYSTEM; OPERATION; PERFORMANCE; AIR CONDITIONING; ENERGY CONSERVATION; EXPERIMENTAL DATA; GRAPHS; HEAT PUMPS; HEAT STORAGE; HOT WATER; HOUSES; POWER DEMAND; SPACE HEATING; TENNESSEE; BUILDINGS; DATA; DATA FORMS; ENERGY STORAGE; HEATING; HYDROGEN COMPOUNDS; INFORMATION; NORTH AMERICA; NUMERICAL DATA; OXYGEN COMPOUNDS; RESIDENTIAL BUILDINGS; SOUTHEAST REGION; STORAGE; USA; WATER; 320101* - Energy Conservation, Consumption, & Utilization- Residential Buildings- (-1987)

Citation Formats

Abbatiello, L.A.. Annual Cycle Energy System characteristics and performance. United States: N. p., 1980. Web.
Abbatiello, L.A.. Annual Cycle Energy System characteristics and performance. United States.
Abbatiello, L.A.. Tue . "Annual Cycle Energy System characteristics and performance". United States. doi:. https://www.osti.gov/servlets/purl/5420989.
@article{osti_5420989,
title = {Annual Cycle Energy System characteristics and performance},
author = {Abbatiello, L.A.},
abstractNote = {The Annual Cycle Energy System (ACES) provides space heating, air conditioning, and domestic water heating while using substantially less energy than competing systems providing the same services. The ACES is based on an electrically driven, unidirectional heat pump that extracts heat from an insulated tank of water during the heating season. As the heat is extracted, most of the water freezes, and the stored ice provides air conditioning in the summer. A single-family residence near Knoxville, Tennessee is being used to demonstrate the energy conserving features of the ACES. A second similar house, the control house, has been used to compare the performance of the ACES to both an electric resistance heating and hot water with central air conditioning system and an air-to-air heat pump system. The results of the first year's operation from November 1977 through mid-September 1978 showed that the ACES consumed 9012 kWh of electricity while delivering an annual coefficient of performance (COP) of 2.78. The control house consumed 20,523 kWh of electricity while delivering an annual COP of 1.13. The second annual cycle was started on December 1978. The ACES was compared with an air-to-air heat pump during this period. During the ice storage portion of this test year, December 1, 1978 to September 1, 1979, 5705 kWh of electricity was used by the ACES, compared to 12,014 kWh for the control house. The respective COPs are 1.40 for the control house with the heat pump and 2.99 for the ACES house during this period. Annual energy consumption for the test year was 6597 kWh and the annual COPs were 1.41 for the control house and 2.81 for ACES. ACES is achieving its anticipated performance. The ACES concept and its general engineering performance as compared to conventional HVAC system are described and discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1980},
month = {Tue Jan 01 00:00:00 EST 1980}
}

Conference:
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