Open-cycle absorption solar cooling. Part I. Combined heat and mass transfer on an open flow liquid absorbent solar collector/regenerator. Final report

Technical Report · Thu May 01 04:00:00 EDT 1986

OSTI ID:5556708

Novak, K S; Wood, B D; Nelson, D J

Previous collector/regenerator models have relied on established heat transfer correlations and the heat and mass transfer analogy to specify heat and mass transfer coefficients. These correlations were derived from relatively simple experiments and do not account for the complexities inherent in the collector/regenerator heat and mass transfer problem. This research was prompted by the need for a more accurate performance model based on experimentally determined combined heat and mass transfer correlations. Experimental data were taken on a prototype (11 x 11 m) collector/regenerator during the summer of 1984 in Tempe, Arizona. The data taken included local solution temperature measurements on the collector but only inlet and exit concentration measurements. A solution energy balance was solved iteratively to determine local concentrations and local heat and mass transfer coefficients. A new collector/regenerator model, based on the derived correlations, accurately predicted actual experimental temperature and concentration data. The model was used to test the effects of various climatic, operational and collector design variables on evaporation rate.

• Research Organization: Arizona State Univ., Tempe (USA). Solar Energy Lab.
• DOE Contract Number: AC03-84SF12223
• OSTI ID: 5556708
• Report Number(s): ERC-R-86020A; ON: DE86014455
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
ABSORPTION REFRIGERATION CYCLE
COMPUTERIZED SIMULATION
COOLING SYSTEMS
DESICCANTS
ENERGY SYSTEMS
ENERGY TRANSFER
EQUIPMENT
FLAT PLATE COLLECTORS
HEAT TRANSFER
MASS TRANSFER
OPEN-CYCLE COOLING SYSTEMS
PERFORMANCE
REGENERATORS
SIMULATION
SOLAR COLLECTORS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
SOLAR REGENERATORS