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What is the best combustion engine? 

Compression ratio
Homogeneous charge compression ignition
Combustion
Diesel fuel
Internal combustion engine

Answers from top 9 papers

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Papers (9)Insight
Open access•Journal Article•DOI
Improving cold start, combustion and emission characteristics of a lean burn spark ignition natural gas engine with multi-point hydrogen injection
Lei Zhu, Zhuoyao He, Zhen Xu, Zhan Gao, Ang Li, Zhen Huang 
05 Jul 2017-Applied Thermal Engineering
18 Citations
The combination of lean burn combustion, EGR, multi-point H 2 injection, and a more effective OC is a potential pathway for CNG engine optimization.
Journal Article•DOI
Combustion characteristics of a methane engine with Air- and N 2 -assisted direct injection
Jingeun Song, Sungwook Park 
01 Dec 2017-Fuel
14 Citations
Thus, air-assisted combustion is an effective combustion strategy to increase engine efficiency.
Open access•Journal Article•DOI
Preliminary Experimental Study on Double Fuel HCCI Combustion
Giuseppe Genchi, Emiliano Pipitone 
01 Dec 2015-Energy Procedia
11 Citations
The main advantage of this new combustion process relies on the noticeable higher engine efficiency obtained with respect to conventional spark ignition operation, and on the strong reduction of NO X emissions.
Journal Article•DOI
Thermodynamic and energy saving benefits of hydraulic free-piston engines
Zhenfeng Zhao, Shan Wang, Shuanlu Zhang, Fujun Zhang 
01 May 2016-Energy
22 Citations
The thermodynamic results show that the combustion process can be optimized to an ideal engine cycle.
Journal Article•DOI
Investigation on the applicability for reaction rates adjustment of the optimized biodiesel skeletal mechanism
Teng Liu, Teng Liu, Jiaqiang E, Wei Yang, Yuangwang Deng, Hui An, Zhiqing Zhang, Minhhieu Pham 
01 May 2018-Energy
45 Citations
The 3-D engine prediction results also indicated that the optimized mechanism can better present the in-cylinder combustion characteristics.
Proceedings Article•DOI
Comparison of Diesel Pilot Ignition (DPI) and Reactivity Controlled Compression Ignition (RCCI) in a Heavy-Duty Engine
N. Ryan Walker, Flavio Dal Forno Chuahy, Rolf D. Reitz 
08 Nov 2015
13 Citations
The strong influence of the equivalence ratio on the combustion performance of the RCCI and DPI combustion strategies indicates the both combustion regimes are recommended to engine applications with air handling systems which generate relatively rich in-cylinder conditions; for engine applications with air handling systems which allow for relatively lean in-cylinder conditions, the RCCI combustion regime is recommended.
Proceedings Article•DOI
Analysis on Fuel Economy Improvement and Exhaust Emission Reduction in a Two-Stroke Engine by Using an Exhaust Valve
Masahiro Asai, Takaharu Kurosaki, Kazunori Okada 
01 Sep 1995-SAE transactions
25 Citations
The AR combustion engine, consequently, has good prospects for the practical use.
Open access•Journal Article•DOI
Experimental analysis of combustion characteristics of CI DI VCR engine using mixture of two biodiesel blend with diesel
B.R. Hosamani, Vadiraj Katti 
01 Aug 2018-Engineering Science and Technology, an International Journal
43 Citations
Increasing CR improve the combustion characteristics of engine.
Journal Article•DOI
Combustion simulations of the fuels for advanced combustion engines in a homogeneous charge compression ignition engine
Anand Krishnasamy, Youngchul Ra, Rolf D. Reitz, Bruce G. Bunting 
01 Apr 2013-International Journal of Engine Research
16 Citations
The combustion characteristics of the fuels for advanced combustion engines are well represented and the present models are well suited for practical engine computations.

Related Questions

What different engine are there?5 answersStep 1: Answer without citation There are various types of engines for transportation purposes, including spark ignition (Otto) engines, compression ignition (diesel) engines, vapor cycle (Rankine) engines, Stirling engines, and open and closed Brayton cycle (gas turbines) engines. Additionally, there are external combustion engines (ECE) designed for high thermodynamic efficiency and low emission of noxious gases. Other types of engines mentioned in the papers include electric motors, pneumatic motors, and biological systems such as molecular motors. Various alternative power plants have also been studied over the years, including free-piston engines, compound engines, stratified charge engines, the catalytic engine, rotary engines, and two-stroke spark ignition engines. Step 3: Answer with citation There are various types of engines for transportation purposes, including spark ignition (Otto) engines, compression ignition (diesel) engines, vapor cycle (Rankine) engines, Stirling engines, and open and closed Brayton cycle (gas turbines) engines. Additionally, there are external combustion engines (ECE) designed for high thermodynamic efficiency and low emission of noxious gases. Other types of engines mentioned in the papers include electric motors, pneumatic motors, and biological systems such as molecular motors. Various alternative power plants have also been studied over the years, including free-piston engines, compound engines, stratified charge engines, the catalytic engine, rotary engines, and two-stroke spark ignition engines.
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