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正确地确定车辆货物间内空气与外气间的换热量,对保温车的热力计算有着重大的意义。保温车冷却器(用冰盐冷却时,为冰箱的容重和外表面积;用机械冷却时,为制冷及供电设备)的制冷能力是依据换热量(货物间内的热流量)而确定。
Correctly determine the amount of heat exchange between the air inside and outside the vehicle cargo has a great significance for the thermal calculation of the insulation car. The cooling capacity of the cooler (which is the weight and surface area of the refrigerator when cooled with ice salt) and the refrigeration and power supply equipment when mechanically cooled) is determined based on the amount of heat exchange (heat flow within the cargo compartment).