小型余热回收ORC系统工质选择实例研究

IF 0.8 Q4 THERMODYNAMICS
P. Klimaszewski, D. Zaniewski, Ł. Witanowski, T. Suchocki, P. Klonowicz, P. Lampart
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引用次数: 7

摘要

本文举例说明了净功率约为30kW的内燃机热回收有机朗肯循环(ORC)系统流体选择的案例研究。讨论了流体选择的各种标准。特别关注系统的热力学性能和人身安全。ORC系统工作流体的选择对设计过程的下一步有很大影响,即工作物质影响涡轮机设计以及热交换器的尺寸和类型。最终的选择通常是在热力学性能、安全性和对自然环境的影响之间做出妥协。热力学分析中最重要的参数包括净发电功率和ORC循环效率的计算。只有在泄漏非常低的情况下,才能接受一定程度的毒性和易燃性。流体的热稳定性水平也必须考虑在内。从商业角度来看,经济性是一个关键方面,它不仅包括流体成本,还包括作为特定流体选择结果的其他成本。本文讨论了ORC系统的各种配置——有无再生器以及直接或间接蒸发。为所考虑的特定发电厂选择的工作流体包括甲苯、DMC(碳酸二甲酯)和MM(六甲基二硅氧烷)。概述了它们的优点和缺点。*通讯作者。电子邮件:pklimaszewski@imp.gda.pl160 P.Klimaszewski等人。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A case study of working fluid selection for a small-scale waste heat recovery ORC system
The paper illustrates a case study of fluid selection for an internal combustion engine heat recovery organic Rankine cycle (ORC) system having the net power of about 30 kW. Various criteria of fluid selection are discussed. Particular attention is paid to thermodynamic performance of the system and human safety. The selection of working fluid for the ORC system has a large impact on the next steps of the design process, i.e., the working substance affects the turbine design and the size and type of heat exchangers. The final choice is usually a compromise between thermodynamic performance, safety and impact on natural environment. The most important parameters in thermodynamic analysis include calculations of net generated power and ORC cycle efficiency. Some level of toxicity and flammability can be accepted only if the leakages are very low. The fluid thermal stability level has to be taken into account too. The economy is a key aspect from the commercial point of view and that includes not only the fluid cost but also other costs which are the consequence of particular fluid selection. The paper discusses various configurations of the ORC system – with and without a regenerator and with direct or indirect evaporation. The selected working fluids for the considered particular power plant include toluene, DMC (dimethyl carbonate) and MM (hexamethyldisiloxane). Their advantages and disadvantages are outlined. ∗Corresponding Author. Email: pklimaszewski@imp.gda.pl 160 P. Klimaszewski, et al.
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来源期刊
Archives of Thermodynamics
Archives of Thermodynamics THERMODYNAMICS-
CiteScore
1.80
自引率
22.20%
发文量
0
期刊介绍: The aim of the Archives of Thermodynamics is to disseminate knowledge between scientists and engineers interested in thermodynamics and heat transfer and to provide a forum for original research conducted in Central and Eastern Europe, as well as all over the world. The journal encompass all aspect of the field, ranging from classical thermodynamics, through conduction heat transfer to thermodynamic aspects of multiphase flow. Both theoretical and applied contributions are welcome. Only original papers written in English are consider for publication.
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