DOIONLINE

DOIONLINE NO - IJMPE-IRAJ-DOIONLINE-8513

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International Journal of Mechanical and Production Engineering (IJMPE)-IJMPE
Journal Home
Volume Issue
Issue
Volume-5,Issue-6  ( Jun, 2017 )
Paper Title
Waste Energy Harvesting by Utilization of Exhaust Gas of a Jet Engine by Implementation of a Thermoelectric Material
Author Name
Mayukh Jyoti Chakraborty, Shreshth Kanugo, Lalit Bhola, Sudhir Kumar Chaturvedi
Affilition
Student, 3,4Faculty, Department of Aerospace Engineering, University of Petroleum & Energy Studies, Dehradun, India
Pages
48-51
Abstract
The paper describes a technique of waste energy harvesting by production of electricity from a thermoelectric material, utilizing the internal energy of the jet engine exhaust as a heat source. The electricity produced is likely to be used as an Auxiliary Power Unit for Cabin Lighting, Cabin Pressurization and Oxygen Supply System. The phenomenon is based on Seeback Effect wherein a temperature gradient across the 2 junctions results in voltage generation across the 2 ends. A duct carrying the exhaust gas from the turbine will be made to flow over one junction of the thermo-electric material. The other junction will be exposed to the free-stream incoming air by another duct carrying the air at much lower temperatures. The establishment of a temperature gradient will result in voltage generation across the two ends of the junction. The following thermoelectric material, silicon germanium semiconductor of a given dimensions will be connected in series – parallel connection to obtain maximum output voltage. The electricity generated will be stored in batteries for future use as an Auxiliary Power Unit. Keywords - Thermoelectric material, aircraft, jet engine, Auxiliary Power Unit, Silicon Germanium n type doping, thermoelectricity, Seeback effect.
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