Influence of supercritical ORC parameters on plate heat exchanger design

Karellas, S; Schuster, A; Leontaritis, AD

dc.contributor.author	Karellas, S	en
dc.contributor.author	Schuster, A	en
dc.contributor.author	Leontaritis, AD	en
dc.date.accessioned	2014-03-01T02:14:56Z
dc.date.available	2014-03-01T02:14:56Z
dc.date.issued	2012	en
dc.identifier.issn	1359-4311	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30180
dc.subject	Organic Rankine Cycle (ORC)	en
dc.subject	Supercritical	en
dc.subject	Heat transfer coefficients	en
dc.subject	Plate heat exchangers	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	ORGANIC RANKINE-CYCLE	en
dc.subject.other	WASTE HEAT	en
dc.subject.other	WORKING FLUIDS	en
dc.subject.other	RECOVERY	en
dc.subject.other	PRESSURE	en
dc.title	Influence of supercritical ORC parameters on plate heat exchanger design	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2012	en
heal.abstract	The applications of Organic Rankine Cycle (ORC) appear to be growing in the field of waste heat utilization. This thermodynamic cycle can be successfully used in the field of biomass combustion, geothermal systems or solar desalination systems, providing efficient systems. In the last years, a very intense investigation on the utilization of low temperature waste heat for supplying ORC systems has brought new research potential in the area of thermodynamic optimisation of this cycle. More specifically, the use of supercritical fluid parameters in the ORC processes seems to become more and more attractive leading to lower exergy destruction systems together with higher heat utilization systems. However, the investigation of the heat exchanger design and the heat exchange coefficients is of high importance for these applications as the effective heat transfer reflects on the overall process energetic and exergetic efficiency. It is important to study the relatively unknown heat transfer mechanisms around the critical point to improve both the heat exchanger surface and the design algorithms. The aim of this paper is to investigate the influence of the ORC parameters on the heat exchanger design. More specifically, the basic parameters of the design of the heat exchangers will be defined in the cases of supercritical fluid parameters and the convective coefficients as well as resulting heat transfer surface will be calculated for various fluid parameters. (C) 2011 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	APPLIED THERMAL ENGINEERING	en
dc.identifier.isi	ISI:000297436400008	en
dc.identifier.volume	33-34	en
dc.identifier.spage	70	en
dc.identifier.epage	76	en