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Five parts including environment air supply duct, air supply structure, display cabinet, air return structure and environment air return duct were integrated and the modified two fluid model was employed to simulate the air flow and heat transfer in a vertical display cabinet with environment air supply. The temperature field characteristics were analyzed and the predicted temperatures were compared...
According to the basic formula of central heating system, the running adjustment formular is derived concerning it. On the basis of the formula, the running adjustment curve is obtained by using origin when adopting the different ways of regulation on both sides of heat exchanger. Finally with the outdoor temperature, it is concluded that the adjusting method of the variable flow and temperature of...
This article analyses the temperature environment of air source heat pump using the air in underground tunnel as cold and heat sources, then models tunnel heat transfer and numerically computes, compares with experiment data and gets the result. It can provide some practically help on tunnel wind cooling technology and tunnel heat transfer calculating.
Focusing on the characteristics of cold winter in the Northeast, this paper carries out heat transfer performance experiments and economic analysis of low-temperature air-cooler. The study results show that: The heat transfer performance of low-temperature air-cooler is good and able to meet the demands of refrigeration in winter; the operating cost is less than the original ammonia or Freon cooling...
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