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布良斯克机器制造工厂生产的机冷车组,由一辆柴油发电车和四辆(或五辆扩大编组)货物车组成。柴油发电车装有两台柴油发电机,货物车内装有由两台制冷机和一台电热器组成的制冷加热装置。每台柴油发电机的额定功率为75kW,最大负载电流为135A,系按最高外温工况下,为四台制冷机供电而设计的。但制冷机大部分时间是在比计算工况低的条件下运用,即在外界温度不高时保持冻结和冷却货物的运输工况。由于热流的减少,货物车内只接通一台制冷机。由于蒸发和冷凝温度低,压缩机所需要的功率也低,因此并未达到柴油机的额定功率。在一定的运输温度工况下,一
The machine-chiller train from the Bryansk machine building plant consists of a diesel-powered car and four (or five enlarged) cargo carts. Diesel electric vehicles equipped with two diesel generators, cargo vehicles equipped with two refrigerators and an electric heater cooling heating device. Each diesel generator has a rated power of 75kW and a maximum load current of 135A, designed to power four refrigerators at maximum external temperature. However, refrigerators spend most of their time under conditions that are lower than the calculated conditions, that is, keep the freezing and cooling conditions of the cargoes when the outside temperature is not high. Due to the reduction of heat flow, only one refrigerator is switched on in the cargo car. Due to the low evaporation and condensing temperatures, the power required by the compressor is also low and thus does not reach the rated power of the diesel engine. In a certain transport temperature conditions, one