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The Impact of Operating Parameters on the Performance of a New ORC–VCC Combination for Cogeneration
Thermal Engineering Pub Date : 2020-09-07 , DOI: 10.1134/s0040601520090086
N. Toujani , N. Bouaziz , M. Chrigui , L. Kairouani

Abstract

This manuscript presents a new combination based on a thermodynamic conversion, the idea is to combine the Organic Rankine Cycle (ORC) with the Vapor Compression Cycle (VCC). The novelty of the system appears essentially in: the development of new ORC–VCC combination architecture, the lowering of the ORC cycle temperature, the possibility of cold production by the ORC cycle upstream of the pumping phase, preheating of ORC cycle using VCC cycle fluid and new configurations based on the integration of heat recovery systems to improve overall system performance. In addition, each installation mode has several configurations depending on the recovery points that will be integrated later, besides its adaptation to any energy source, where we can use biomass, solar and heat rejects of industry at low temperatures (80‒160°C). This system can produce a cold with negative and positive temperatures. Although, thanks to its architecture, it is also characterized by many combination of selection fluid for the ORC and VCC cycles it is not necessarily to have the same working fluid as the classic systems. The main purpose of this study is to analyze the performance of a new system which combines Rankine-vapor compression cycle for the cogeneration of electricity and refrigeration. Coefficient of performance (COP) will be compared with other cooling systems and power system, such as the system turbo compressor Rankine. The fluids we used in the work are ammonia for the ORC and R600a for the VCC.



中文翻译:

运行参数对新型ORC-VCC热电联产性能的影响

摘要

该手稿提出了一种基于热力学转换的新组合,其思想是将有机朗肯循环(ORC)与蒸汽压缩循环(VCC)相结合。该系统的新颖性主要体现在:开发新的ORC-VCC组合结构,降低ORC循环温度,在泵送阶段上游通过ORC循环进行冷生产的可能性,使用VCC循环流体对ORC循环进行预热以及基于热回收系统集成的新配置,以提高整体系统性能。此外,每种安装模式都有不同的配置,具体取决于恢复点,这些点将在以后集成,除了适应任何能源外,我们还可以在低温(80‒160°C)下使用生物质,太阳能和工业排热。该系统会产生正负温度的感冒。尽管由于其体系结构,它也具有许多ORC和VCC循环选择液的组合特征,但不一定具有与经典系统相同的工作液。这项研究的主要目的是分析结合朗肯蒸汽压缩循环的电力和制冷热电联产的新系统的性能。性能系数(COP)将与其他冷却系统和动力系统(例如涡轮压缩机Rankine)进行比较。我们在工作中使用的流体是ORC的氨水和VCC的R600a。它还具有ORC和VCC循环选择油的多种组合,因此不一定具有与经典系统相同的工作油。这项研究的主要目的是分析结合朗肯蒸汽压缩循环的热电联产新系统的性能。性能系数(COP)将与其他冷却系统和动力系统(例如涡轮压缩机Rankine)进行比较。我们在工作中使用的流体是ORC的氨水和VCC的R600a。它还具有ORC和VCC循环选择油的多种组合,因此不一定具有与经典系统相同的工作油。这项研究的主要目的是分析结合朗肯蒸汽压缩循环的热电联产新系统的性能。性能系数(COP)将与其他冷却系统和动力系统(例如涡轮压缩机Rankine)进行比较。我们在工作中使用的流体是ORC的氨水和VCC的R600a。性能系数(COP)将与其他冷却系统和动力系统(例如涡轮压缩机Rankine)进行比较。我们在工作中使用的流体是ORC的氨水和VCC的R600a。性能系数(COP)将与其他冷却系统和动力系统(例如涡轮压缩机Rankine)进行比较。我们在工作中使用的流体是ORC的氨水和VCC的R600a。

更新日期:2020-09-08
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