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首页> 外文期刊>Renewable energy >Transient simulation and parametric study of solar-assisted heating and cooling absorption systems: An energetic, economic and environmental (3E) assessment
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Transient simulation and parametric study of solar-assisted heating and cooling absorption systems: An energetic, economic and environmental (3E) assessment

机译：太阳能辅助加热和冷却吸收系统的瞬态仿真和参数研究：充满活力，经济和环境（3E）评估

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摘要

This paper presents energetic, economic, and environmental (3E) analyses of four configurations of solar heating and cooling (SHC) systems based on coupling evacuated tube collectors with a single-effect LiBr-H2O absorption chiller. In the first configuration (SHC1), a gas-fired heater is used as the back-up system, while a mechanical compression chiller is employed as the auxiliary cooling system in the second configuration (SHC2). The capacity of the absorption chiller is designed based on the maximum building cooling load in these configurations. The third and fourth configurations (SHC3 and SHC4) are similar to SHC2, but the absorption chiller size is reduced to 50% and 20%, respectively. The results show that the highest primary energy saving is achieved by SHC2, leading to a solar fraction of 71.8% and saving 54.51% primary energy as compared to a reference conventional HVAC system. The economic performance of all configurations is still unsatisfactory (without subsidies) due to their high capital costs. However, if a government subsidy of 50% is considered, the results suggest that SHC4 can be economically feasible, achieving a payback period of 4.1 years, net present value of 568,700 AUD and solar fraction of 43%, contributing to 27.16% decrease in the plant primary energy consumption. (C) 2015 Elsevier Ltd. All rights reserved.
机译：本文介绍了基于真空管集热器与单效LiBr-H2O吸收式制冷机耦合的太阳能加热和冷却（SHC）系统的四种配置的能量，经济和环境（3E）分析。在第一配置（SHC1）中，将燃气加热器用作备用系统，而在第二配置（SHC2）中将机械压缩式冷却器用作辅助冷却系统。吸收式制冷机的容量是根据这些配置中的最大建筑物制冷负荷设计的。第三和第四配置（SHC3和SHC4）类似于SHC2，但吸收式冷却器的尺寸分别减小到50％和20％。结果表明，与参考传统的HVAC系统相比，SHC2实现了最高的一次能源节省，从而导致太阳能比例为71.8％，一次能源节省了54.51％。由于其高昂的资本成本，所有配置的经济性能仍然不能令人满意（没有补贴）。但是，如果考虑政府补贴的50％，则结果表明SHC4在经济上可行，投资回收期为4.1年，净现值568,700 AUD，太阳能比例为43％，导致SHC4的投资减少了27.16％。工厂一次能源消耗。 （C）2015 Elsevier Ltd.保留所有权利。

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