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Title: Demonstration and evaluation of phase-change thermal-energy storage in residential heat-pump systems. Final report

Abstract

The demonstration and evaluation of a project to design, construct, and test an integrated heat-pump/storage system for residential use in North Carolina are described. The system employs a packed-bed phase-change heat storage unit which utilizes calcium chloride hexahydrate as the phase-change material. The phase-change material is encapsulated and contained within a storage unit for diurnal storage with a standard residential heat pump. Some specific topics considered in the study are: the ability of the system to reduce the overall energy requirements during heating; the comfort quality of the heat withdrawn from the phase-change storage unit; the ability of the system to shift electrical load for the purposes of utility load management and to utilize time-of-day pricing. The system and the experimental procedure are described; an analysis of the experimental data is presented. A feasibility study of using the system in conjunction with the cooling cycle of the heat pump was performed. (MCW)

Authors:
; ; ;
Research Org.:
North Carolina State Univ., Raleigh (USA). Dept. of Mechanical and Aerospace Engineering
OSTI Identifier:
5912197
Report Number(s):
NCEI-0034
ON: DE82900584
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 25 ENERGY STORAGE; HEAT PUMPS; COEFFICIENT OF PERFORMANCE; DEMONSTRATION PROGRAMS; DESIGN; PERFORMANCE TESTING; SPACE HEATING; THERMAL ENERGY STORAGE EQUIPMENT; CALCIUM CHLORIDES; EFFICIENCY; EXPERIMENTAL DATA; HEATING SYSTEMS; HOUSES; HYDRATES; NORTH CAROLINA; ALKALINE EARTH METAL COMPOUNDS; BUILDINGS; CALCIUM COMPOUNDS; CALCIUM HALIDES; CHLORIDES; CHLORINE COMPOUNDS; DATA; ENERGY SYSTEMS; EQUIPMENT; HALIDES; HALOGEN COMPOUNDS; HEATING; INFORMATION; NORTH AMERICA; NUMERICAL DATA; RESIDENTIAL BUILDINGS; SOUTHEAST REGION; TESTING; USA; 320101* - Energy Conservation, Consumption, & Utilization- Residential Buildings- (-1987); 250600 - Energy Storage- Thermal

Citation Formats

Mulligan, J C, Bailey, J A, Ozisik, M N, and Maday, C J. Demonstration and evaluation of phase-change thermal-energy storage in residential heat-pump systems. Final report. United States: N. p., Web.
Mulligan, J C, Bailey, J A, Ozisik, M N, & Maday, C J. Demonstration and evaluation of phase-change thermal-energy storage in residential heat-pump systems. Final report. United States.
Mulligan, J C, Bailey, J A, Ozisik, M N, and Maday, C J. . "Demonstration and evaluation of phase-change thermal-energy storage in residential heat-pump systems. Final report". United States.
@article{osti_5912197,
title = {Demonstration and evaluation of phase-change thermal-energy storage in residential heat-pump systems. Final report},
author = {Mulligan, J C and Bailey, J A and Ozisik, M N and Maday, C J},
abstractNote = {The demonstration and evaluation of a project to design, construct, and test an integrated heat-pump/storage system for residential use in North Carolina are described. The system employs a packed-bed phase-change heat storage unit which utilizes calcium chloride hexahydrate as the phase-change material. The phase-change material is encapsulated and contained within a storage unit for diurnal storage with a standard residential heat pump. Some specific topics considered in the study are: the ability of the system to reduce the overall energy requirements during heating; the comfort quality of the heat withdrawn from the phase-change storage unit; the ability of the system to shift electrical load for the purposes of utility load management and to utilize time-of-day pricing. The system and the experimental procedure are described; an analysis of the experimental data is presented. A feasibility study of using the system in conjunction with the cooling cycle of the heat pump was performed. (MCW)},
doi = {},
url = {https://www.osti.gov/biblio/5912197}, journal = {},
number = ,
volume = ,
place = {United States},
year = {},
month = {}
}

Technical Report:
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