Design and Development of
Experiment and Modeling
Characterization of Foam
Title: Design and Development of an Orientation Independent and Wickless Two-phase Heat Spreader
Funding Agencies: Indian Space Research Organization (ISRO), India-Project Nos.: ISRO/RES/3/674/2014-15 and FC/GGYN/SS/MOU/IITP/01
Major Work Accomplished:
Title: Thermal Design, Analysis, and Development of a Wicked Heat Pipe
Supervisors: Prof. L. Hoskoti, Department of Mechanical Engineering, SCT Institute of Technology, Bangalore and Prof. G.S.V.L. Narasimham, Department of Mechanical Engineering, Indian Institute of Science, Bangalore
Work Accomplished (Undergraduate Project):
Title: Passive Two-phase Heat Spreader for Hotspot Mitigation in Microgravity of Space
Currently working to design and develop a science payload to test our heat spreader in the lower earth orbit aboard during the second unmanned flight of the Gaganyaan Mission of the Indian Space Research Organization (ISRO) in July 2021
Funding Agencies: Indian Space Research Organization (ISRO), India-Project No.: FC/GGYN/SS/MOU/IITP/01
Boiling heat transfer performance significantly deteriorate confined spaces, downward-facing heater orientaion, and in space in the absence of buoyancy induced bubble departure mechanism.
Work Accomplished: Surfactants are widely known additive to enhance pool boiling HTC. However, they significantly deteriorate pool boiling CHF. We explained for the first time CHF mechanism and enhancement strategies. We also explored a new class of additives known as Ionic Liquids in pool boiling.
Work Accomplished: Surfactants are widely known to enhance pool boiling CHF. However, stability of nanoparticles in the base fluid is always a concern. In this regard, stablizers such as surfactants widely used in naofluids. Presence of surfactants decreases CHF significantly. We explained the mechanism of CHF of surfactant stablized nanofluids. Further, we developed a Master Curve to predict the CHF of such solutions without any boiling experiments
Nanoscale Deposition of Ionic Liquids results in Wettability Enhancement
Microchannels and Nanostructures coating on microchannels
Nanoparticles deposition on the Cu surface during boiling
The Thermal and Fluid Transport Laboratory works under the direction of Dr. Rishi Raj, in the Department of Mechanical Engineering at Indian Institute of Technology Patna. I worked in this lab during my Masters and Ph.D. on various research problems. The work in this laboratory mainly focuses on thermal and fluid transport during the liquid-vapor phase change, interfacial interactions, and surface engineering for efficient thermal management of earth and space based applications.
The laboratory has the following facilities:
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