IMPROVED WASTE HEAT RECOVERY THROUGH SURFACE OF KILN USING PHASE CHANGE MATERIAL

dc.authoridAli, Hafiz Muhammad/0000-0001-9266-408X
dc.authoridKILIC, MUSTAFA/0000-0002-8006-149X
dc.authoridSaleem, Arslan/0000-0001-7780-0258
dc.contributor.authorAkram, Nouman
dc.contributor.authorMoazzam, M. Usman
dc.contributor.authorAli, Hafiz Muhammad
dc.contributor.authorAjaz, Ashar
dc.contributor.authorSaleem, Arslan
dc.contributor.authorKılıç, Mustafa
dc.contributor.authorMobeen, Abdul
dc.date.accessioned2025-01-06T17:38:20Z
dc.date.available2025-01-06T17:38:20Z
dc.date.issued2018
dc.description.abstractThe heat losses that occur from the surface of the rotary kilns during calcination process are a major source of waste heat in cement production industry. In order to recover this heat, a multi-shell heat exchanger that forms an annular duct over the high temperature zone of the kiln is used. The phase change material (PCM) paraffin wax with a melting point of 68 degrees C is filled in between the gap of the two concentric annular steel shells which are thermally insulated from the outside. In order to draw a comparison and to establish that phase change material improves the waste heat recovery, the heat exchanger model made up of mild steel, which extracts waste heat from a kiln, is experimentally investigated with and without the tertiary shell that contains the phase change material. The outer surface of the heat exchanger is insulated by glass wool, and to facilitate the passage of air between the shells for heat transfer, a variable speed centrifugal fan (for variable flow rate) is installed. The results show that the waste heat recovery rate is increased by 3% to 8% (depending on different air-flow rate) with the use of phase change material. This implies that phase change materials such as paraffin wax can be used in heat exchangers to obtain an improved waste heat recovery rate.
dc.description.sponsorshipUniversity of Engineering and Technology, Taxila, Pakistan [UET/ASRTD/RG-1001]
dc.description.sponsorshipThe corresponding author wishes to acknowledge the financial support provided by the University of Engineering and Technology, Taxila, Pakistan under the faculty research project through approval letter No. UET/ASR&TD/RG-1001.
dc.identifier.doi10.2298/TSCI170611301A
dc.identifier.endpage1098
dc.identifier.issn0354-9836
dc.identifier.issn2334-7163
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85047494821
dc.identifier.scopusqualityQ3
dc.identifier.startpage1089
dc.identifier.urihttps://doi.org/10.2298/TSCI170611301A
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2547
dc.identifier.volume22
dc.identifier.wosWOS:000431923000030
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherVinca Inst Nuclear Sci
dc.relation.ispartofThermal Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241211
dc.subjectheat exchanger
dc.subjectphase change material
dc.subjectwaste heat recovery
dc.subjectrotary kiln
dc.subjectparaffin wax
dc.titleIMPROVED WASTE HEAT RECOVERY THROUGH SURFACE OF KILN USING PHASE CHANGE MATERIAL
dc.typeArticle

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