Heat transfer and solid sorption research are the two major verticals in which research has spread over in the Transport Phenomena Laboratory.
Heat transfer reserach aims at miniaturisation of the heat transferring devices such as heat exchangers. Cryo-compatible miniaturised heat exchangers offer challenges in terms of high efficiency, low axial heat conduction, reduced heat ingress and pressure drop penalty. Nevertheless, everything should ideally be achieved at the low cost of price. The first prototype unit has been built and tested.
The other wing of heat transfer research is associated with the use of metal foam as extended heat transfer surfaces or fins owing to their high heat transfer surface area density, open porosity, interconnectivity and ability of creating eddies. Our research aims at transforming the concept of metal foam based heat exchangers into reality. Metal foam has been found extremely effective as passive radiation coolers in space cryogenics (cooling accomplished by radiating heat to outer space). Both experimental and theoretical research is progressing simultaneously in this field.
Solid sorption research, the second vertical, is further growing in two directions. Cryosorption storage of gaseous hydrogen in carbonaceous materials is the area in which the research in the laboratory is currently limited to theoretical level.
The other aspectof sorption research is related to cooling. Active research of both theoretical and experimental nature is being pursued for couple of years. Aiming at an effective utilisation of large heat of desorption, the present research is focussed on overcoming the limitations typically linked to solid sorption processes. Usually, intermittency in solid sorption cooling is avoided with the use of multiple adsorbent beds triggering operational complexities. Development of continuous solid sorption cooling in a single adsorbent tube, with the rapid pressurisation and depressurisation, can substantially reduce this problem. Indian patent has been applied for the process.
Heat Transfer Correlation for High Porosity Open Cell Foam by Ghosh, I. Int. Journal of Heat and Mass Transfer 49 2889-2902 (2006)
Synthesis of Multistream Heat Exchangers by Thermally Linked Two-Stream Modules by Ghosh, I., Sarangi, S.K., Das, P.K. Int. Journal of Heat and Mass Transfer 53 1070-1078 (2010)
Cryosorption Storage of Gaseous Hydrogen for Vehicular Application A Conceptual Design by Ghosh, I., Naskar, S., Bandyopadhyay, S. S. Int. Journal of Hydrogen Energy 35 (1) 161-168 (2010)
New Technique for Generating Continuous Sorption Cooling in a Single Adsorbent Column by Koley S., Ghosh I. Applied Thermal Engineering 55 33-42 (2013)
Theoretical and Experimental Studies of Crossflow Minichannel Heat Exchanger Subjected to External Heat Ingress by Dixit, T., Ghosh, I. Applied Thermal Engineering 73 160-169 (2014)
On Scope of Improving Solid Sorption Cooling - Generating it Continuously in a Regenerative Single Adsorbent Column by Ghosh, I. Science and Technology for the Built Environment 21 275-279 (2015)
Review of Micro- and Mini-channel Heat Sinks and Heat Exchangers for Single Phase Fluids by Dixit, T., Ghosh, I. Renewable & Sustainable Energy Reviews 41 1298-1311 (2015)
Role of Desorption Route in a Novel Single-Column Continuous Solid Sorption Cooling Process by Koley, S., Ghosh, I. Applied Thermal Engineering 99 502-513 (2016)
An Experimental Study on Open Cell Metal Foam as Extended Heat Transfer Surface by Dixit, T., Ghosh, I. Experimental Thermal and Fluid Science 77 28-37 (2016)
Radiation Heat Transfer in High Porosity Open-cell Metal Foams for Cryogenic Applications by Dixit, T., Ghosh, I. Applied Thermal Engineering 102 942-951 (2016)
Development of a Cost Effective Left Ventricular Assist Device (LVAD) with Centrifugal Mechanical Circulator, Drive System and Associated Control (Proposal ID - 7781) MHRD
Tisha Milind Dixit
Area of Research: Compact extended surface heat transfer
Area of Research: Thermo-hydraulic studies of Mini/Microchanel
Area of Research: Fluid flow through metal foam
Soumya Ranjan Nayak
Area of Research: Cryogenic solid sorption cooling