Single-phase liquid flow through a packed bed of PCM
A packed bed of pelletized phase change material coupled with a heat pump can provide an efficient system for building space heating or cooling. In such a system, the packed bed using a refrigerant as the working fluid replaces the conventional condenser or evaporator in the heat pump cycle. Experiments to determine the performance of a packed bed with an evaporating or condensing refrigerant are under way. Preliminary results of sensible heating and cooling measurements from a two-phase flow packed-bed test facility using R-113 as the working fluid are reported. The void fraction and the flow in bed are essentially uniform. Local heat transfer coefficients were measured within + or - 15% uncertainty at three axial positions and were found to be uniform within the bed. The results are in good agreement with literature values. A heat transfer correlation is presented.
- Research Organization:
- University of Tennessee Mechanical and Aerospace Engineering Department, Knoxville, Tennessee
- OSTI ID:
- 5943855
- Report Number(s):
- CONF-840804-
- Journal Information:
- Proc., Intersoc. Energy Convers. Eng. Conf.; (United States), Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Vol. 2; ISSN PIECD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
ANALOG SYSTEMS
BUILDINGS
COOLING SYSTEMS
EFFICIENCY
ENERGY STORAGE
ENERGY SYSTEMS
ENERGY TRANSFER
FLUID FLOW
FLUIDS
FUNCTIONAL MODELS
HEAT EXCHANGERS
HEAT PUMPS
HEAT STORAGE
HEAT TRANSFER
HEATING
LIQUID FLOW
MATERIALS
PACKED BED
PELLETS
PERFORMANCE
PHASE CHANGE MATERIALS
REFRIGERANTS
SENSIBLE HEAT STORAGE
SIMULATORS
SPACE HEATING
STORAGE
TEMPERATURE MEASUREMENT
THERMAL EFFICIENCY
TWO-PHASE FLOW
WORKING FLUIDS