Engine Efficiency Optimization under Consideration of NOX- and Knock-Limits for Medium Speed Dual Fuel Engines in Cylinder Cut-Out Operation

2018 ◽  
Author(s):  
Johannes Konrad ◽  
Thomas Lauer ◽  
Mathias Moser ◽  
Enrico Lockner ◽  
Jianguo Zhu
Keyword(s):  
Dual Fuel ◽  
Efficiency Optimization ◽  
Engine Efficiency ◽  
Medium Speed ◽  
Dual Fuel Engines

Investigation of the cylinder cut-out for medium-speed dual-fuel engines

2018 ◽  
pp. 209-224
Author(s):  
Johannes Konrad ◽  
Thomas Lauer ◽  
Mathias Moser ◽  
Enrico Lockner ◽  
Jianguo Zhu
Keyword(s):  
Dual Fuel ◽  
Medium Speed ◽  
Dual Fuel Engines

scholarly journals Study on the Performance Analysis of Dual Fuel Engines on the Medium Speed Diesel Engine

2020 ◽  
Vol 68 (1) ◽  
pp. 163-174 ◽  
Author(s):  
Muhammad Arif Budiyanto ◽  
Agus Sunjarianto Pamitran ◽  
Hadi Tresno Wibowo ◽  
Fahd Naufal Murtado
Keyword(s):  
Diesel Engine ◽  
Performance Analysis ◽  
Dual Fuel ◽  
Medium Speed ◽  
Dual Fuel Engines

Pilot Injection Strategies for Medium-speed Dual-fuel Engines

2018 ◽  
Vol 8 (1) ◽  
pp. 48-55 ◽  
Author(s):  
Björn Henke ◽  
Sascha Andree ◽  
Bert Buchholz ◽  
Martin Theile
Keyword(s):  
Dual Fuel ◽  
Pilot Injection ◽  
Medium Speed ◽  
Dual Fuel Engines ◽  
Injection Strategies

Investigation of the Cylinder Cut-out for Medium-speed Dual-fuel Engines

2018 ◽  
Vol 8 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Johannes Konrad ◽  
Thomas Lauer ◽  
Mathias Moser ◽  
Jianguo Zhu
Keyword(s):  
Dual Fuel ◽  
Medium Speed ◽  
Dual Fuel Engines

scholarly journals Instantaneous and cycle optimization of fuel usage on a dual fuel vehicle leveraging gasoline and natural gas

2017 ◽  
Vol 233 (2) ◽  
pp. 292-303
Author(s):  
Carrie M Hall ◽  
Michael Pamminger ◽  
James Sevik ◽  
Thomas Wallner
Keyword(s):  
Natural Gas ◽  
Control Strategies ◽  
Time Instant ◽  
Control Technique ◽  
Dual Fuel ◽  
Compressed Natural Gas ◽  
Engine Efficiency ◽  
Transportation Sector ◽  
Dual Fuel Engines ◽  
The Impact

Recent increases in natural gas supply have led to a desire to leverage this fuel in the transportation sector. Dual fuel engines provide a platform on which to use natural gas efficiently; these engines, however, require new hardware and new control strategies to properly utilize two fuels simultaneously. This paper explores the impact of implementing dual fuel capabilities on a sedan and demonstrates that a dual fuel E10 and compressed natural gas engine is able to improve the average engine efficiency by up to 6.5% compared to a single fuel engine on standard drive cycles. An optimal control technique is also developed, and the proposed approach allows factors including fuel cost and fuel availability to be taken into account. Optimization at each time instant is investigated and contrasted with optimization over the entire cycle. Cycle optimization is shown to have particular value for cases in which the level in one fuel tank is low.

scholarly journals Phenomenological micro-pilot ignition model for medium-speed dual-fuel engines

Fuel ◽  
2021 ◽  
Vol 285 ◽  
pp. 118955
Author(s):  
Hyunchun Park ◽  
Yuri M. Wright ◽  
Omar Seddik ◽  
Ales Srna ◽  
Panagiotis Kyrtatos ◽  
...  
Keyword(s):  
Dual Fuel ◽  
Medium Speed ◽  
Dual Fuel Engines

Pielstick Experience With Dual-Fuel Engines and Cogeneration

1988 ◽  
Vol 110 (3) ◽  
pp. 349-355 ◽  
Author(s):  
G. Grosshans ◽  
M. Litzler
Keyword(s):  
Energy Consumption ◽  
Diesel Engines ◽  
Primary Energy ◽  
Dual Fuel ◽  
Gas Mixture ◽  
The West ◽  
Medium Speed ◽  
Dual Fuel Engines ◽  
Textile Factory ◽  
Solvent Vapors

SEMT PIELSTICK has developed since 1971 a range of medium-speed dual-fuel engines with relatively high air-fuel ratios, which enable ratings similar to diesel engines. The PC 2.3 DF.C of 1971 was developed up to 535 hp/cyl. and was followed by the PC 2.5 DF.C of 600 hp/cyl. This later engine was applied in the West German cogeneration plan of a textile factory, giving more than 82 percent use of primary energy. This engine may also be used as a pollution-abating machine, because it traps toxic solvent vapors, which are burned in the engine, reducing furthermore the apparent (paid) energy consumption. Thanks to the lean air-gas mixture, the very severe West German limits on pollution could be fulfilled without any extra depolluting device. The newest development is the PA 5 DF engine of the same philosophy, which will cover the 1000 to 3600 kW range.

Effect of Diesel Injection Split on Combustion and Emissions Performance of a Natural Gas–Diesel Dual Fuel Engine at a Low Load Condition

2017 ◽  
Author(s):  
Hongsheng Guo ◽  
Brian Liko ◽  
W. Stuart Neill
Keyword(s):  
Natural Gas ◽  
Carbon Dioxide Emissions ◽  
Internal Combustion Engines ◽  
Dual Fuel ◽  
Combustion Engines ◽  
Engine Efficiency ◽  
Diesel Injection ◽  
Low Load ◽  
Dual Fuel Engines ◽  
Load Conditions

As an inexpensive and low carbon fuel, the combustion of natural gas reduces fuel cost and generates less carbon dioxide emissions than diesel and gasoline. Natural gas is also a clean fuel that generates less particulate matter emissions than diesel during combustion. Replacing diesel by natural gas in internal combustion engines is of great interest for industries. Dual fuel combustion is an efficient way to apply natural gas in internal combustion engines. An issue that to a certain extent offsets the advantage of lower carbon dioxide emissions in natural gas–diesel dual fuel engines is the higher methane emissions and low engine efficiency at low load conditions. In order to seek strategies to improve the performance of dual fuel engines at low load conditions, an experimental investigation was conducted to investigate the effect of diesel injection split on combustion and emissions performance of a heavy duty natural gas–diesel dual fuel engine at a low load. The operating conditions, such as engine speed, load, intake temperature and pressure, were well controlled during the experiment. The effects of diesel injection split ratio and timings were investigated. The engine efficiency and emissions data, including particulate matter, nitric oxides, carbon monoxide and methane were measured and analyzed. The results show that diesel injection split significantly reduced the peak pressure rise rate. As a result, diesel injection split enabled the engine to operate at a more optimal condition at which engine efficiency and methane emissions could be significantly improved compared to single diesel injection.

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