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首页> 外文期刊>International Journal of Refrigeration >Performance evaluation and optimal design of supermarket refrigeration systems with supermarket model 'SuperSim'. Part II: Model applications
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Performance evaluation and optimal design of supermarket refrigeration systems with supermarket model 'SuperSim'. Part II: Model applications

机译：超级市场模型“ SuperSim”的超级市场制冷系统的性能评估和优化设计。第二部分：模型应用

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摘要

As described in Part I, the supermarket simulation software "SuperSim" with its integrated refrigeration, building and HVAC system models, can be used to evaluate, compare and optimize alternative supermarket refrigeration systems. In Part II the model was used to evaluate and compare the performance of a CO_2 booster refrigeration system with that of a conventional R404A multiplex system in a supermarket application. Floating head pressure control was implemented for both systems when they were in subcritical cycles. For the CO_2 system, when the system was in transcritical cycle due to higher ambient air temperature, the head pressure was optimized through extensive thermodynamic cycle analysis as a function of ambient air temperature. The performance of the CO_2 booster system in the supermarket was then simulated during a one year period and compared with that of the R404A system. As a result, the system performance will benefit from a lower ambient temperature and a sizeable heat recovery for the CO_2 system.
机译：如第一部分所述，具有集成制冷，建筑和HVAC系统模型的超市仿真软件“ SuperSim”可用于评估，比较和优化替代超市制冷系统。在第二部分中，该模型用于评估和比较超市应用中CO_2增压制冷系统与常规R404A多重系统的性能。当两个系统处于亚临界循环时，都对它们进行了浮头压力控制。对于CO_2系统，当系统由于较高的环境空气温度而处于跨临界循环时，根据广泛的热力学循环分析，根据环境空气温度对压头压力进行了优化。然后，在一年中模拟了超市中CO_2增压系统的性能，并将其与R404A系统的性能进行了比较。结果，系统性能将受益于较低的环境温度和CO_2系统可观的热回收率。

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