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Energy and exergy analysis of fossil plant and heat pump building heating system at two different dead-state temperatures

机译：化石厂和热泵建筑物供热系统在两种不同死态温度下的能量和火用分析

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摘要

In this paper, we deal with the energy and exergy analysis of a fossil plant and ground and air source heat pump building heating system at two different dead-state temperatures. A zone model of a building with natural ventilation is considered and heat is being supplied by condensing boiler. The same zone model is applied for heat pump building heating system. Since energy and exergy demand are key parameters to see which system is efficient at what reference temperature, we did a study on the influence of energy and exergy efficiencies. In this regard, a commercial software package IDA-ICE program is used for calculation of fossil plant heating system, however, there is no inbuilt simulation model for heat pumps in IDA-ICE, different COP (coefficient of performance) curves of the earlier studies of heat pumps are taken into account for the evaluation of the heat pump input and output energy. The outcome of the energy and exergy flow analysis at two different dead-state temperatures revealed that the ground source heat pumps with ambient reference have better performance against all ground reference systems as well as fossil plant (conventional system) and air source heat pumps with ambient reference.
机译：在本文中，我们处理了化石工厂以及地热源和空气源热泵建筑供暖系统在两种不同的死态温度下的能量和火用分析。考虑具有自然通风的建筑物的区域模型，并且通过冷凝锅炉供热。相同区域模型适用于热泵建筑采暖系统。由于能量和火用需求是确定哪个系统在哪个参考温度下有效的关键参数，因此我们对能量和火用效率的影响进行了研究。在这方面，使用商业软件包IDA-ICE程序来计算化石设备的供暖系统，但是，IDA-ICE中没有内置的热泵模拟模型，早期研究中的COP（性能系数）曲线不同为了评估热泵的输入和输出能量，需要考虑热泵的数量。在两种不同的死态温度下进行的能量和火用流量分析的结果表明，具有环境参考的地源热泵对所有地面参考系统以及化石工厂（常规系统）和具有环境参考的空气源热泵具有更好的性能参考。

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