Wet ethanol in HCCI engines with exhaust heat recovery to improve the energy balance of ethanol fuels

Saxena, Samveg; Schneider, Silvan; Aceves, Salvador M.; Dibble, Robert W.

doi:10.1016/j.apenergy.2012.04.007

Cited by 90 publications

(26 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Controlled auto-ignition (CAI) combustion, also known as homogeneous charge compression ignition (HCCI), combines two major stages in ICE cycles, including preparation of premixed air and fuel and the compression of the homogeneous charge until the commencement of auto-ignition [5][6][7]. Accordingly, there will be no longer flame front (e.g., SI engine) and diffusion burning (e.g., diesel engine) [8][9][10][11][12]. To achieve CAI/HCCI combustion, high intake charge temperatures and substantial amount of charge dilution have to be present.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the influence of internal and external EGR on the combustion characteristics of a controlled auto-ignition two-stroke cycle engine

et al. 2014

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the influence of internal and external EGR on the combustion characteristics of a controlled auto-ignition two-stroke cycle engine

et al. 2014

View full text Add to dashboard Cite

“…Saxena et al [73] incorporated a system to recover exhaust heat to increase the input temperature of the wet ethanol by retrofitting a heat exchanger of exhaust gas combined to one of the engine cylinder to study the possibility of employing wet ethanol fuel in 4-cylinder Volkswagen engine modified to run in HCCI mode. They tested the blend of ethanol with water from 100 to 80 % ethanol by volume obtained from biomass processed to prepare ethanol.…”

Section: Effect Of Different Fuels On Hcci Combustionmentioning

confidence: 99%

Homogeneous Charge Compression Ignition (HCCI) Engines: A Review

Sharma

Rao

Murthy

2015

Arch Computat Methods Eng

View full text Add to dashboard Cite

The homogeneous charge compression ignition (HCCI) combustion is considered to be the principally promising future IC engine concepts. HCCI is a concept of hybrid combustion, between the Otto engine and Diesel engine. HCCI is however not a modern finding. Already in the early twentieth century hot bulb engines operated with an HCCI-like combustion. They were superior in terms of brake efficiency compared with the contemporary gasoline engines and at the same level as the diesel engines. High engine efficiencies and ultra low NO emissions and low particulates are the benefits of HCCI engines. Volumetric auto ignited combustion of the compressed lean air-fuel mixture is attributed to these benefits. There are few drawbacks also were there in HCCI engines like, low specific output, narrow operating range, lack control over the ignition process, long start up time and high emissions like CO and UHC emissions. The CO and UHC emissions can be after treated using catalytic converters. In this study a literature review on HCCI engine has been performed and the parameters affecting the HCCI combustion phasing, performance and emissions were discussed. Strategies to widen the peak load bearing capacity of HCCI engine, reducing the emissions like NOx, CO and UHC, easy autoignition were discussed in the present study.

show abstract

“…The HCCI operation is similar to SI engine as both use the homogeneous charge for combustion and similar to CI engine as both depend on the auto ignition of the mixture. Thus, HCCI combustion can be regarded as the hybrid of SI and CI combustion processes [11]. In SI engines, three zones of combustion namely burnt zone, unburned zone and a thin flame reaction zone in-between are generated for turbulent flame propagation through the cylinder.…”

Section: Si Enginementioning

confidence: 99%