carries on the structural influence of refrigerated food (2)

2) Establish a quota for power consumption per unit of cooling capacity The power consumption per unit of cooling capacity is the power consumption per 1 kW of cooling capacity calculated separately for each refrigeration system. For example, the monthly cooling capacity of the compressor of the

room. At the end of each month, the actual unit cooling power consumption of the compressor is calculated and compared with the quota to evaluate the operation and management of the compressor. When calculating the power consumption rating per unit of cold capacity, the evaporation temperature is based on the requirements of each refrigeration system, and the condensation temperature is taken according to the actual monthly average condensing temperature of the compressor units of each refrigeration system.

3) Establish a unit product power consumption quota The unit product power consumption is calculated based on the power consumption per ton of product. It is a comprehensive indicator to measure the power consumption of walk-in cooler. It not only reflects the design, operation and management of refrigeration equipment, but also reflects the design, use of walk-in cooler structure and the management of walk-in cooler storage goods (Such as the opening of the walk-in cooler door, the entry and exit time of personnel, and the entry and exit time of goods, etc.). The power consumption per unit product of each walk-in cooler cannot be the same, and the power consumption per unit product should be determined according to their different situations. Walk-in cooler products are divided into frozen products and refrigerated productsBig category. When calculating the power consumption per unit product, frozen products such as frozen meat, frozen by-products or frozen fish should be calculated according to different refrigeration equipment. Cold items should be calculated according to high temperature storage (cold storage) and low temperature storage (frozen storage). For the equipment shared by all refrigeration systems (such as water pumps, cooling tower fans, etc.), it can be calculated according to the refrigeration capacity of the refrigeration compressors of each refrigeration system (freezing, ice making, ice storage, high temperature refrigeration, and low temperature refrigeration). For refrigerated products, it is easier to formulate a walk-in cooler unit product power consumption quota, because the environmental temperature change has little impact on it (the heat infiltration of the enclosure structure only accounts for 5% to 10% of the total cold consumption), which can be directly Calculate according to the following formula. It is more difficult to rate the power consumption per unit of refrigerated products, because the environmental temperature changes have a greater impact on it. Therefore, only the power consumption per unit product under the design conditions can be used as the basis for the quota, and adjustments can be made with changes in the ambient temperature. In addition, you can refer to the experience of using walk-in cooler with high efficiency at home and abroad. These data can usually be found on the Internet.