Vol 5 , Issue 2 , April - June 2017 | Pages: 176-186 | Research Paper
Received: January 25, 2017 | Revised: February 20, 2017 | Accepted: February 28, 2017 | Published Online: June 15, 2017
Author Details
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Environmental Protection issues and the global energy crisis worldwide have caused energy recovery techniques to come into play. One of the potential areas for this energy recovery is engine exhaust as huge amount of energy is lost in form of heat through exhaust gases. With appropriate recovery methods executed, considerable increase in efficiency of engine is obtained. For this aim, thermoelectric generators is proposed as the optimum solution as its solid state working doesn’t have any moving parts or gas emissions and directly converts exhaust heat into electricity. Another promising technique to recover waste heat is usage of heat pipes. Heat pipes being excellent thermal conductors combine phase transition of fluid (typically water) to achieve efficient heat transfer. The present study focuses on various advancements achieved in the heat recovery from engine exhaust using thermoelectric generators and heat pipes and their combinations. The results of various researches depict the enormous potential of such technologies in saving non renewable energy sources and reducing environmental degradation.
Keywords
Exhaust Gases; Heat Pipes; Heat Recovery; Thermoelectric Generators.