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Thermoeconomic and environmental analyses of a low water consumption combined steam power plant and refrigeration chillers-Part 2: Thermoeconomic and environmental analysis

机译：低耗水蒸汽发电厂和制冷机组的热经济和环境分析第2部分：热经济和环境分析

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The present paper is the continuation of Part 1 of a comprehensive study on new low water consumption combined steam power plants (SPP) and refrigeration chillers. Environmental, exergy, and thermoeconomic analyses of the steam power plant with natural draft wet cooling tower (SPP-NDWCT) as the base system, combined vapor compression refrigeration and the base system (VCR-SPP-NDWCT), and combined absorption heat pump and the base system (ABHP-SPP-NDWCT) are developed. The exergy analysis is conducted to analyze and compare the systems from an exergetic point of view and the thermoeconomic analysis is done to obtain the unit cost of the water loss in the systems' cooling towers. The environmental analysis is also carried out to obtain the annual environmental revenue of the saved water compared to the annual economic and environmental costs caused by consuming more fuel in the ABHP-SPP-NDWCT system. The results demonstrated that the NDWCT exergy loss, exergy destruction and total cost value decreased by 12%, 10.7% and 1.8% in ABHP-SPP-NDWCT system, respectively. Thus, the ABHP-SPP-NDWCT system could replace the conventional SPP-NDWCT system in regions where the environmental-economic value of water is higher than 1.081 $/1. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文是对新型低耗水蒸汽联合发电厂（SPP）和制冷机的综合研究的第1部分的继续。以自然通风湿式冷却塔（SPP-NDWCT）为基本系统，蒸汽压缩制冷与基本系统（VCR-SPP-NDWCT）为组合，吸收式热泵和联合供热为基础的蒸汽发电厂的环境，火用和热经济分析开发了基本系统（ABHP-SPP-NDWCT）。进行了火用分析，从能量的角度分析和比较了系统，并进行了热经济分析，以获得了系统冷却塔中水损失的单位成本。与ABHP-SPP-NDWCT系统中由于消耗更多燃料而导致的年度经济和环境成本相比，还进行了环境分析，以获取节水的年度环境收益。结果表明，ABHP-SPP-NDWCT系统的NDWCT火用损失，火用破坏和总成本值分别降低了12％，10.7％和1.8％。因此，在水的环境经济价值高于1.081 $ / 1的地区，ABHP-SPP-NDWCT系统可以代替常规的SPP-NDWCT系统。 （C）2016 Elsevier Ltd.保留所有权利。

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