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Mathematical model and economic analysis of solar and nocturnal radiation-assisted heat pumps for heating and cooling

Thesis/Dissertation ·
OSTI ID:6165845
Recent interest in the usage of nocturnal sky radiation for space cooling has extended the usage of solar collectors as radiators during summer nights. This research proposes and develops a mathematical model of a cheap collector/radiator system to be combined with a water-source heat pump in series arrangement to be used for space heating and cooling. The energy input is compared with that of a comparable air-source heat pump, and the annual energy saving thus obtained is used in the economic analysis to determine the life-cycle saving. Actual weather data are used in this analysis. It was observed that high and low temperatures of the fluid should be avoided as the former entails low energy saving while the later requires large radiator areas. Studies done on three representative cities (Madison, Wisconsin, Dodge City, Kansas, and Brownsville, Texas) indicate that this system is best suitable for moderate climate locations. Out of the three cities studied, Dodge City showed a better economical feature followed by Madison.
Research Organization:
Kansas State Univ., Manhattan (USA)
OSTI ID:
6165845
Country of Publication:
United States
Language:
English