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水产品蒸煮设备中CO2热泵蒸发器仿真试验

  1. （1 上海海洋大学食品学院，上海冷链装备性能与节能评价专业技术服务平台，上海 201306； 2上海水产品加工及贮藏工程技术研究中心，上海 201306； 3食品科学与工程国家级实验教学示范中心(上海海洋大学)，上海 201306）
  • 出版日期:2021-02-20 发布日期:2021-03-19
  • 通讯作者: 谢晶（1968—），女，教授，研究方向：制冷及低温工程。E-mail：jxie@shou.edu.cn
  • 作者简介:轩福臣（1996—），男，硕士研究生，研究方向：渔业装备技术。 E-mail：2033343635@qq.com
  • 基金资助:
    国家“十三五”重点研发项目（2019YFD0901604）；农业农村部海水鱼产业体系（CARS-47）；2019年上海市科技兴农重点攻关项目(2019-02-08-00-10-F01143)；上海市科委能力建设项目（19DZ2284000）；上海市科委公共服务平台建设项目（17DZ2293400）

Simulation test of CO2 heat pump evaporator in aquatic product cooking equipment

  1. (1 College of Food Science and Technology, Shanghai Ocean University, Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China; 2 Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai 201306, China; 3 National Experimental Teaching Demonstration Center for Food Science and Engineering (Shanghai Ocean University), Shanghai 201306, China;)
  • Online:2021-02-20 Published:2021-03-19

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摘要： 为研究水产品蒸煮装备用CO2热泵中蒸发器的性能变化，通过建立CO2热泵Simulink动态仿真模型，并搭建用于水产品蒸煮用CO2热泵试验台，采用仿真计算与试验验证结合的方法，在此水产品蒸煮装备中，控制蒸发温度-5 ℃~-15 ℃，研究不同蒸发温度对结霜性能、制热量、热泵系数、压缩比性能参数的影响。结果显示：蒸发温度从-5 ℃变化到-15 ℃，结霜速率逐渐增大，在仿真和试验中，热泵蒸煮装备的制热量分别增加0.73 kW、0.70 kW，热泵系数分别降低0.29、0.32，压缩比分别增大0.52、0.50，其中，仿真与试验结果的最大误差率11.79 %，最小误差率7.71 %，仿真与试验结果吻合度较高。研究表明：在满足水产品加工需求的前提下，为提高加工系统效率，应降低蒸发温度；建立的CO2热泵仿真平台可以较好地仿真水产品蒸煮装备的运行状况，可为CO2热泵在水产品蒸煮的实际应用中提供指导作用。

关键词: 水产品加工, 蒸煮设备, 蒸发温度, 仿真试验

Abstract: In order to study the performance change of the evaporator in the CO2 heat pump for aquatic product cooking equipment, the Simulink dynamic simulation model of the CO2 heat pump was established, and the CO2 heat pump test bench for the aquatic product cooking was built. The test method was a combination of simulation calculation and test verification. In this aquatic product cooking equipment, the evaporation temperature was controlled to vary from -5 °C to -15 °C to study the effects of different evaporation temperatures on frosting performance, heating capacity, heat pump coefficient and compression ratio. The results showed that the frosting rate gradually increased when the evaporation temperature changed from -5 ℃ to -15 ℃. In the simulation and experiment, the heating capacity of heat pump cooking equipment increased by 0.73 kW and 0.70 kW respectively, the heat pump coefficient decreased by 0.29 and 0.32 respectively, and the compression ratio increased by 0.52 and 0.50 respectively. Among them, the maximum error rate between simulation and experiment was 11.79 %, and the minimum error rate was 7.71 %. The simulation and experiment are in good agreement. Studies have shown that: on the premise of meeting the demand for aquatic product processing, in order to improve the efficiency of the processing system, the evaporation temperature should be lowered; the CO2 heat pump simulation platform established can better simulate the operation status of the aquatic product cooking equipment, and can provide some guidance for practical application of the CO2 heat pump to aquatic product cooking.

Key words: aquatic product processing, cooking equipment, evaporation temperature, simulation test