Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/121562
Title: QUASI-STEADY AND TRANSIENT STUDY OF FLOW-BOILING PHENOMENA IN A MICROCHANNEL
Authors: MRINAL JAGIRDAR
Keywords: Flow Boiling, Microchannel, Heat Transfer, Transients, Flow Regime Detection, Inverse Heat Conduction Problem
Issue Date: 20-Aug-2015
Source: MRINAL JAGIRDAR (2015-08-20). QUASI-STEADY AND TRANSIENT STUDY OF FLOW-BOILING PHENOMENA IN A MICROCHANNEL. ScholarBank@NUS Repository.
Abstract: THE TARGET HEAT FLUX REMOVAL FROM MICROELECTRONICS WOULD SOON BE GREATER THAN 100 W/CM2. FLOW BOILING IN MICRO-CHANNELS IS A STRONG CANDIDATE FOR COOLING OF SUCH APPLICATIONS. ITS ADVANTAGES INCLUDE A HIGH HEAT TRANSFER COEFFICIENT, HIGH HEAT FLUX REMOVAL, EXCELLENT TEMPERATURE UNIFORMITY, SMALL FLOW RATE REQUIREMENT AND HOT SPOT MITIGATION CAPABILITY. HOWEVER, A LACK OF FUNDAMENTAL UNDERSTANDING OF BOILING MECHANISMS AND PREDICTIVE MODELS LIMIT ITS COMMERCIAL APPLICATIONS. FLOW BOILING BEING A HIGHLY TRANSIENT PHENOMENA, THIS STUDY AIMS AT BOTH TIME-AVERAGED AS WELL AS TRANSIENT STUDY. LOCAL TRANSIENT TEMPERATURE DATA WAS CAPTURED SYNCHRONOUSLY WITH FLOW VISUALIZATION. A SOLUTION METHODOLOGY FOR INVERSE HEAT CONDUCTION PROBLEM (IHCP) WAS USED TO CALCULATE THE WALL HEAT TRANSFER VARIABLES, WHICH WERE CORRELATED TO THE PHENOMENA OBSERVED DURING FLOW VISUALIZATIONS. THIS HAS GIVEN FRESH INSIGHTS INTO THE BOILING HEAT TRANSFER MECHANISMS. ADDITIONALLY, A NOVEL METHOD HAS BEEN DEVELOPED FO
URI: http://scholarbank.nus.edu.sg/handle/10635/121562
Appears in Collections:Ph.D Theses (Open)

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