scholarly journals Heat recovery from a natural gas powered internal combustion engine by CO2 transcritical power cycle

2010 ◽  
Vol 14 (4) ◽  
pp. 897-911 ◽  
Author(s):  
Mahmood Farzaneh-Gord ◽  
Aliakbar Mirmohammadi ◽  
Mohammadreza Behi ◽  
Amin Yahyaie
Keyword(s):  
Natural Gas ◽  
Internal Combustion Engine ◽  
Heat Recovery ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Power Cycle

OFF-DESIGN MODEL OF AN ORC SYSTEM FOR WASTE HEAT RECOVERY OF AN INTERNAL COMBUSTION ENGINE

2021 ◽  
pp. 117188
Author(s):  
Rieder de Oliveira Neto ◽  
César Adolfo Rodriguez Sotomonte ◽  
Christian J.R. Coronado
Keyword(s):  
Internal Combustion Engine ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Design Model

Analytical Investigation of a Thermal-Supercharged Internal Combustion Engine Compounded With Organic Rankine Cycle for Waste Heat Recovery

2017 ◽  
Author(s):  
Manuel Jiménez-Arreola ◽  
Fabio Dal Magro ◽  
Alessandro Romagnoli ◽  
Meng Soon Chiong ◽  
Srithar Rajoo ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Combustion Engine ◽  
Rankine Cycle ◽  
Internal Combustion ◽  
Analytical Investigation ◽  
Back Pressure ◽  
Recovery Method

Waste heat recovery is seen as one of the key enablers in achieving powertrain of high efficiency. The exhaust waste heat from an internal combustion engine (ICE) is known to be nearly equivalent to its brake power. Any energy recovered from the waste heat, which otherwise would be discarded, may directly enhance the overall thermal efficiency of a powertrain. Rankine cycle (indirect-recovery method) has been a favorable mean of waste heat recovery due to its rather high power density yet imposing significantly lesser back pressure to the engine compared to a direct-recovery method. This paper presents the analytical investigation of a thermal-supercharged ICE compounded with Rankine cycle. This system removes the turbocharger turbine to further mitigate the exhaust back pressure to the engine, and the turbocharger compressor is powered by the waste heat recovered from the exhaust stream. Extra caution has been taken when exchanging the in/output parameters between the engine and Rankine cycle model to have a more realistic predictions. Such configuration improves the engine BSFC performance by 2.4–3.9%. Water, Benzene and R245fa are found to be equally good choice of working fluid for the Rankine cycle, and can further advance the BSFC performance by 4.0–4.8% despite running at minimum pressure setting. The off-design analyses suggested the operating pressure of Rankine cycle and its expander efficiency have the largest influence to the gross system performance.

Conversion of Natural Gas in The Internal Combustion Engine

1958 ◽  
Vol 37 (7) ◽  
pp. 417-422
Author(s):  
Kiroku Yamasaki ◽  
Hiroshi Mitsui
Keyword(s):  
Natural Gas ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion
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