relation: https://khub.utp.edu.my/scholars/15274/ title: Comparative numerical and experimental analysis of thermal and hydraulic performance of improved plate fin heat sinks creator: Tariq, A. creator: Altaf, K. creator: Ahmad, S.W. creator: Hussain, G. creator: Ratlamwala, T.A.H. description: The benefits of multiple perforations and slots in a plate-fin heat sink are investigated using a conjugate heat transfer model and complementary experimentation. Heat transfer and pressure drop are analyzed across the two, novel plate-fin heat sinks (with perforations and slots). The experimental data validates the conjugate heat transfer CFD model for the air-cooled heat sink. The results from the CFD model show that novel plate-fin heat sinks tend to have a higher heat transfer coefficient than the plane fins without slots and perforations. Also, pressure drop of the novel plate-fin heat sinks is lower than the plane plate-fin heat sink, so less fan power is required for novel heat sinks. For a range of Re number 13,049 to 52195, on average novel plate-fin heat sink-1 (NPFHS-1) and novel plate-fin heat sink-2 (NPFHS-2) have 42.8 and 35.9 higher Nu number than that of the plane plate-fin heat sink (PPFHS). An additional advantage of the reduction in mass of heat sink is achieved because of slots and perforations. © 2020 Elsevier Ltd publisher: Elsevier Ltd date: 2021 type: Article type: PeerReviewed identifier: Tariq, A. and Altaf, K. and Ahmad, S.W. and Hussain, G. and Ratlamwala, T.A.H. (2021) Comparative numerical and experimental analysis of thermal and hydraulic performance of improved plate fin heat sinks. Applied Thermal Engineering, 182. ISSN 13594311 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092536062&doi=10.1016%2fj.applthermaleng.2020.115949&partnerID=40&md5=7676c5c7bcc42b5cc42cd759bd8f6a9f relation: 10.1016/j.applthermaleng.2020.115949 identifier: 10.1016/j.applthermaleng.2020.115949