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The impact of industrial chiller chilled water outlet temperature on the performance of the unit

  • Author:AMC
  • Source:AMC
  • Release on :2015-12-26
We often comes chiller cooling capacity, in fact, industrial chiller nominal cooling capacity means that when the ambient temperature is 35 degrees, the chilled water outlet temperature of 7 degrees of cooling capacity. When in actual operation, the ambient temperature and chilled water outlet temperature is different, so industrial chiller cooling capacity and compressor power consumption also varies. Whether it is air-cooled industrial chillers, industrial chillers or water-cooled, its cooling capacity with increasing chilled water outlet temperature increases, as the ambient inlet air temperature increase and decrease. Why is there such a situation? This is due to the chilled water outlet temperature rises, evaporation pressure corresponding increase industrial chillers, the suction volume ratio is reduced, cooling capacity per unit volume and industrial chillers refrigeration volume increases, when the ambient temperature is increased, when, Industrial Chiller refrigeration system condensing pressure increase, due to the evaporation temperature constant, its suction volume ratio remains unchanged, chiller compressor gas transmission coefficient decreases, reducing cooling capacity per unit mass, and therefore industrial refrigeration chillers the amount is also reduced. Industrial chiller power consumption with the improvement of chilled water outlet temperature increases with the increase of the ambient temperature increases, which is due to the chiller chilled water temperature rises, the evaporation pressure increase, if the ambient temperature is constant, compression than reduce, reduce power consumption, but this time a larger increase in industrial chiller cooling capacity required for power, and therefore the total compressor power consumption is still increasing. If the ambient temperature rises, the condensing pressure is increased in the industrial chiller chilled water outlet temperature is kept constant, the time compression ratio is increased, power consumption increased, decreased slightly reduce the cooling capacity required by the power, but the total compressor power consumption is still increasing.