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Development and Investigational Studies on Waste Heat Recovery System for Converting Waste Heat into Electricity from Domestic and Non- Domestic Appliances

Authors:

Lankesh Kumar. K1, Dr.K.M. Purushothama2

1*Mechanical Engineering, Dr. Ambedkar Institute of Technology, Bengaluru,560056, Karnataka, India

2 *Mechanical Engineering, Dr. Ambedkar Institute of Technology, Bengaluru,560056, Karnataka, India

*Corresponding author(s). E-mail(s): lankeshkumark@ymail.com;

Contributing authors: kmpait2000 @gmail.com;

Abstract: Waste heat recovery systems are currently the best solutions to the energy challenge globally, employing the waste thermal energy from household and industrial appliances to produce electricity. While this work is concerned with the design and analysis of a new WHR system that is flexible to different heat sources. To which, when using the TEGs, the system showed potential with increased electricity generation and efficiency in non-domestic sectors such as the boilers and furnaces with an availability of high grade, and constant heat. Domestic appliances, as indicated, offered lower efficiency, though further energy saving efficiencies were achievable when used in conjunction with renewable technologies. The research puts emphasis on higher efficiency of thermoelectric materials and best system integration as the key to efficiency. Methodologies also acknowledged major environmental and economic advantages, especially in the industrial application, where the minimal energy costs and CO2 emissions correspond to the concept of sustainability. Other difficulties like material scaling issues, integration issues and durability during operation issue were realized for improvement in the future. This study highlights the viability of WHR systems as a distinct energy solution while raising the gap between ideas and execution. The research outcomes advance global endeavours to enhance energy efficiency and provide valuable information for the application of WHR systems for various settings ranging from individual residences to multiple industries promoting a sustainable and energy efficient planet.

Keywords: Waste Heat Recovery (WHR), Thermoelectric Generators (TEGs), Energy Efficiency, Domestic Appliances, Industrial Applications, Renewable Energy Integration.