Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
40 Study of Heat and Mass Transfer Based on Air Humidity Potential
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In modern society the utilization of potential is very widespread. The gravitational potential energy of water can be used for hydro-electric; the utilization of thermodynamic potential provides the power for human in various aspects. Air humidity potential caused by the moisture content difference in the air also can be exploited. This hidden potential energy is inexhaustible, clean and pollution-free.
Air humidity potential can be applied in areas such as air-conditioning and refrigeration. Machine like evaporative cooler and dehumidifier use the air humidity potential to carry on the heat and mass transfer. At present, environmental protection and energy-saving is mostly concerned in air-conditioning industry, this technology should be attached great importance to the new development of energy-saving and environmental friendly air-conditioning.
This article is a comprehensive analysis of the background of proposing air humidity potential theory and puts forward concept of the air humidity potential. By thermodynamic analysis of the air humidity potential, it studies heat and mass exchange process between air and the fluid. Then the exergy analysis and computation of the air humidity potential is carried on by thermodynamics computational method of exergy. Lastly, air humidity potential is applied to direct evaporative cooling and dehumidifier.