Optimization of a shell-and-tube district heat condenser for a small back pressure combined heat and power plant

dc.contributor.authorSaari, Jussien
dc.contributor.authorCarvalho, Mariana M.O.en
dc.contributor.authorSermyagina, Ekaterinaen
dc.contributor.authorVakkilainen, Esaen
dc.contributor.authorKaikko, Juhaen
dc.date.accessioned2017-08-28T07:07:48Z
dc.date.available2017-08-28T07:07:48Z
dc.date.issued2016en
dc.descriptionPapers presented to the 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Costa de Sol, Spain on 11-13 July 2016.en
dc.description.abstractWood-fired combined heat and power (CHP) plants are a proven technology for producing domestic, carbon-neutral heat and power in Nordic countries. Such plants are often of backpressure configuration, the district heat condenser replacing the vacuum condenser of a condensing power plant. The condenser is usually a shell-and-tube heat exchanger with district heating water on the tube side. In this paper, a new approach is presented to optimize the condenser design considering not only the design-point performance, but also variations in the operating conditions. A power plant model is used to determine the plant performance (net power output and boiler fuel consumption) as a function of the main performance parameters of the condenser at each point. Cuckoo search algorithm is used for the optimization. The results show that although electricity price variation has a significant impact on plant net cash flow rate, the effects of electricity price and heat exchanger specific cost on condenser design are low.en
dc.format.extent8 pagesen
dc.format.mediumPDFen
dc.identifier.urihttp://hdl.handle.net/2263/61913
dc.language.isoenen
dc.publisherHEFATen
dc.rightsUniversity of Pretoriaen
dc.subjectHeat condenseren
dc.titleOptimization of a shell-and-tube district heat condenser for a small back pressure combined heat and power planten
dc.typePresentationen

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