Experimentally determined correlations for solar collector/regenerator heat and mass transfer
Local and overall performance measurements were taken on a prototype (11 x 11 m) solar collector/regenerator component of an open-cycle absorption refrigeration system. The data taken included local solution temperatures and inlet and exit concentrations. An interative method was used to solve a series of energy balances, over small finite distances in the flow direction, for local concentrations and local heat and mass transfer coefficients. Experimental convection coefficients were compared to those predicted by established correlations used in previous collector performance models. Established correlations underpredict heat transfer coefficients by a factor of 1.3 to 2.5 and underpredict mass transfer coefficients by a factor of 1.5 to 3.5. Local combined heat and mass transfer correlations were derived from the data. The correlations express nondimensional heat and mass transfer coefficients as functions of parameters describing forced convection, free convection heat transfer and free convection mass transfer. These correlations were integrated into a collector/regenerator performance model. The present model is a significant improvement over previous models and accurately predicts experimentally measured performance for a wide range of solar/meteorological conditions.
- OSTI ID:
- 5467903
- Report Number(s):
- CONF-851125-
- Resource Relation:
- Conference: American Society of Mechanical Engineers winter annual meeting, Miami, FL, USA, 17 Nov 1985
- Country of Publication:
- United States
- Language:
- English
Similar Records
Open-cycle absorption solar cooling. Part I. Combined heat and mass transfer on an open flow liquid absorbent solar collector/regenerator. Final report
Experimental study for a double glazed forced-convection solar collector/regenerator for open-cycle absorption cooling system
Related Subjects
SOLAR COLLECTORS
HEAT TRANSFER
MASS TRANSFER
PERFORMANCE TESTING
SOLAR REFRIGERATORS
SOLAR REGENERATORS
ACCURACY
COMPARATIVE EVALUATIONS
DATA ANALYSIS
FORCED CONVECTION
ITERATIVE METHODS
LEADING ABSTRACT
MATHEMATICAL MODELS
MEETINGS
METEOROLOGY
NATURAL CONVECTION
OPEN-CYCLE COOLING SYSTEMS
PROCESS DEVELOPMENT UNITS
SOLAR RADIATION
TEMPERATURE MEASUREMENT
WORKING FLUIDS
ABSTRACTS
CONVECTION
COOLING SYSTEMS
DOCUMENT TYPES
ENERGY SYSTEMS
ENERGY TRANSFER
EQUIPMENT
FLUIDS
FUNCTIONAL MODELS
RADIATIONS
REFRIGERATORS
REGENERATORS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
STELLAR RADIATION
TESTING
140909* - Solar Thermal Utilization- Miscellaneous Solar Applications- (1980-)
141000 - Solar Collectors & Concentrators