Ma Zuiliang

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Using phase change material of phase-change temperature 6¡æ, triple-sleeve energy storage exchanger is proposed. The exchanger, air source and solar heat pump compose an integrated system. Established mathematical model of the triple-sleeve energy storage exchanger according to enthalpy method and simulating heat storage dynamic characteristics(More)
Existing problems of traditional air source variable refrigerant flow (VRF) air-conditioning system are analyzed. The disadvantages of traditional VRF air-conditioning system are described in detail: 1) its properties are seriously affected by outdoor temperature. 2) The system has lower cooling capacity and coefficient of performance with an expansion of(More)
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