An experimental study of heat transfer from an immersed coil to a pool of PCM: Effect of cycling
This paper presents results of an experimental investigation of surface-averaged, time-wise variation of the heat transfer rate during melting and freezing of a PCM (commercial paraffin wax) contained in a large pool; the heat transfer fluid flows through a coil immersed in the pool of PCM. Heat transfer measurements are made during melting as well as freezing. Since in the most realistic application of a PCM storage-type heat exchanger, the PCM is subjected to cycling i.e. alternating melting (during the storage mode) and freezing (during the heat recovery mode), the present study included an evaluation of the effect of controlled cycling. Heat transfer data were obtained for varying cycle times (i.e. 30 mon., 60 min., 180 min. etc). Also, data were obtained with different temperatures of the heat transfer fluid. Implications of the results in the light of practical heat exchanger design using immersed coils will be discussed.
- Research Organization:
- McGill Univ., Montreal
- OSTI ID:
- 6802314
- Report Number(s):
- CONF-831205-
- Journal Information:
- Alternative Energy Sources; (United States), Journal Name: Alternative Energy Sources; (United States); ISSN ALESD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Thermal energy storage system combining mass and PCM
An analytical study of heat exchanger effectiveness and thermal performance in a solar energy storage system with PCM
Related Subjects
142000* -- Solar Energy-- Heat Storage-- (1980-)
ALKANES
DESIGN
ENERGY RECOVERY
ENERGY STORAGE
ENERGY TRANSFER
FREEZING
HEAT EXCHANGERS
HEAT RECOVERY
HEAT STORAGE
HEAT TRANSFER
HYDROCARBONS
LATENT HEAT STORAGE
MATERIALS
MELTING
MELTING POINTS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARAFFIN
PHASE CHANGE MATERIALS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RECOVERY
STORAGE
THERMAL CYCLING
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
WAXES