Modeling Analysis of Waste Heat Recovery via Thermo Electric Generators for Fuel Economy Improvement and CO2 Reduction in Small Diesel Engines

2014 ◽  
Vol 7 (1) ◽  
pp. 246-255 ◽  
Author(s):  
Ivan Arsie ◽  
Andrea Cricchio ◽  
Vincenzo Marano ◽  
Cesare Pianese ◽  
Matteo De Cesare ◽  
...  
Keyword(s):  
Fuel Economy ◽  
Diesel Engines ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Co2 Reduction ◽  
Thermo Electric ◽  
Modeling Analysis ◽  
Fuel Economy Improvement ◽  
Electric Generators

Fuel Economy Benefits for Commercial Diesel Engines with Waste Heat Recovery

2015 ◽  
Vol 8 (2) ◽  
pp. 491-505 ◽  
Author(s):  
Katharina Eichler ◽  
Yousef Jeihouni ◽  
Carl Ritterskamp
Keyword(s):  
Fuel Economy ◽  
Diesel Engines ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat

scholarly journals Waste heat recovery from thermo-electric generators (TEGs)

2020 ◽  
Vol 6 ◽  
pp. 474-479 ◽  
Author(s):  
L.S. Hewawasam ◽  
A.S. Jayasena ◽  
M.M.M. Afnan ◽  
R.A.C.P. Ranasinghe ◽  
M.A. Wijewardane
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Thermo Electric ◽  
Electric Generators

Effect of an ORC Waste Heat Recovery System on Diesel Engine Fuel Economy for Off-Highway Vehicles

2017 ◽  
Author(s):  
Apostolos Karvountzis-Kontakiotis ◽  
Apostolos Pesiridis ◽  
Hua Zhao ◽  
Fuhaid Alshammari ◽  
Benjamin Franchetti ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Engine Fuel ◽  
Waste Heat Recovery System ◽  
Recovery System ◽  
Heat Recovery System

scholarly journals System analysis and optimisation of a Kalina split-cycle for waste heat recovery on large marine diesel engines

Energy ◽  
2014 ◽  
Vol 64 ◽  
pp. 484-494 ◽  
Author(s):  
Ulrik Larsen ◽  
Tuong-Van Nguyen ◽  
Thomas Knudsen ◽  
Fredrik Haglind
Keyword(s):  
Diesel Engines ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
System Analysis ◽  
Waste Heat ◽  
Marine Diesel

Organic Rankine Cycle for Waste Heat Recovery in a Hybrid Vehicle

2010 ◽  
Author(s):  
Quazi E. Hussain ◽  
David R. Brigham
Keyword(s):  
Fuel Economy ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Operating Conditions ◽  
Working Fluid ◽  
Drive Cycle ◽  
Exhaust Heat

The Rankine cycle is used commercially to generate power in stationary power plants using water as the working fluid. For waste heat recovery applications, where the temperature is lower, water is typically replaced by a carefully selected organic fluid. This work is based on using the waste heat in an automobile to generate electricity using the Organic Rankine cycle (ORC) with R245fa (1, 1, 1, 3, 3 penta-fluoropropane) as the working fluid. The electricity thus generated can be used to drive the accessory load or charge the battery which in any case helps improve the fuel economy. A simple transient numerical model has been developed that is capable of capturing the main effects of this cycle. Results show that exhaust heat alone can generate enough electricity that is capable of bringing about an improvement to the fuel economy under transient drive cycle conditions. Power output during EPA Highway drive cycle is much higher than EPA City due to higher exhaust mass flow rate and temperature. Time needed to reach operating conditions or in other words, the warm-up time plays an important role in the overall drive cycle output. Performance is found to improve significantly when coolant waste heat is used in conjunction with the residual exhaust heat to pre-heat the liquid. A sizing study is also performed to keep the cost, weight, and packaging requirement down without sacrificing too much power. With careful selection of heat exchanger design parameters, it has been demonstrated that the backpressure on the engine can be actually lowered by cooling off the exhaust gas. This lower backpressure will further boost the fuel economy gained by the electricity produced by the Rankine bottoming cycle.

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