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首页> 外文会议>International Conference on Electronic Engineering and Renewable Energy Systems >Analysis of the Energy Produced and Energy Quality of Nanofluid Impact on Photovoltaic-Thermal Systems
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Analysis of the Energy Produced and Energy Quality of Nanofluid Impact on Photovoltaic-Thermal Systems

机译：纳米流体对光伏热系统产生的能量和能量质量的影响分析

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To limit climate change, the use of renewable energy is mandatory. PV/T systems generate renewable energy, simultaneously satisfy both the thermal and electrical energy requests. Usually, these systems have some limitations to fulfill the thermal energy needs; therefore, it is necessary to improve their efficiency with the aim to increase the enthalpy level of the energy produced. In this paper, the effects of changing the cooling fluid from pure water to a nanofluid composed by water and aluminum oxide (Al_2O_3) in a PV/T system are studied. The analysis is based on the thermodynamics viewpoint, considering both the total energy produced and its quality. The thermal level achievable by changing the heat transfer fluid, as well as the electrical efficiency considering various input conditions has been calculated. Finally, the energy yield produced by a conventional PV/T plant, which use pure water (PV/T)_w and the proposed improved PV/T plant, which use pure the nanofluid (PV/T)_(nf), under real climate conditions have been compared. Such comparison was developed taking into account the second law of thermodynamics as well as the exergy analysis.
机译：为了限制气候变化，必须使用可再生能源。 PV / T系统产生可再生能源，同时满足热能和电能需求。通常，这些系统在满足热能需求方面有一定的局限性。因此，有必要提高其效率，以提高产生的能量的焓水平。本文研究了在PV / T系统中将冷却液从纯水变成由水和氧化铝（Al_2O_3）组成的纳米流体的效果。该分析基于热力学观点，同时考虑了产生的总能量及其质量。已经计算出通过改变传热流体可获得的热水平以及考虑各种输入条件的电效率。最后，在实际环境下，使用纯水（PV / T）_w的常规PV / T工厂和使用纯纳米流体（PV / T）_（nf）的拟议改进PV / T工厂产生的能量产量比较了气候条件。这种比较是在考虑热力学第二定律以及火用分析的基础上进行的。

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