Advances in Waste Heat Recovery Systems for Gas Engines
2013-01-2433
09/24/2013
- Event
- Content
- The paper presents a novel concept of very efficient transportation engines for operation with CNG, LNG or LPG. The combustion system permits mixed diesel/gasoline-like operation changing the load by quantity of fuel injected and modulating the premixed and diffusion combustion phases for high fuel energy transfer to piston work. A waste heat recovery system (WHRS) is then recovering the intercooler and engine coolant energy plus the exhaust energy. The WHRS uses a power turbine on the exhaust and a steam turbine feed by a single loop turbo-steamer. The WHRS is the enabler of much faster warm up of the engine and further improvements of the top fuel conversion efficiency to above 50% for the specific case with reduced fuel efficiency penalties changing the load or the speed.
- Pages
- 10
- Citation
- Boretti, A., "Advances in Waste Heat Recovery Systems for Gas Engines," SAE Technical Paper 2013-01-2433, 2013, https://doi.org/10.4271/2013-01-2433.