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.

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

scholarly journals A Study on the High Load Operation of a Natural Gas-Diesel Dual-Fuel Engine

2020 ◽  
Vol 6 ◽  
Author(s):  
Shouvik Dev ◽  
Hongsheng Guo ◽  
Brian Liko
Keyword(s):  
Particulate Matter ◽  
Natural Gas ◽  
Diesel Engines ◽  
Thermal Efficiency ◽  
Direct Injection ◽  
High Load ◽  
Dual Fuel ◽  
Nox Emissions ◽  
Brake Thermal Efficiency ◽  
Dual Fuel Engines

Diesel fueled compression ignition engines are widely used in power generation and freight transport owing to their high fuel conversion efficiency and ability to operate reliably for long periods of time at high loads. However, such engines generate significant amounts of carbon dioxide (CO2), nitrogen oxides (NOx), and particulate matter (PM) emissions. One solution to reduce the CO2 and particulate matter emissions of diesel engines while maintaining their efficiency and reliability is natural gas (NG)-diesel dual-fuel combustion. In addition to methane emissions, the temperatures of the diesel injector tip and exhaust gas can also be concerns for dual-fuel engines at medium and high load operating conditions. In this study, a single cylinder NG-diesel dual-fuel research engine is operated at two high load conditions (75% and 100% load). NG fraction and diesel direct injection (DI) timing are two of the simplest control parameters for optimization of diesel engines converted to dual-fuel engines. In addition to studying the combined impact of these parameters on combustion and emissions performance, another unique aspect of this research is the measurement of the diesel injector tip temperature which can predict potential coking issues in dual-fuel engines. Results show that increasing NG fraction and advancing diesel direct injection timing can increase the injector tip temperature. With increasing NG fraction, while the methane emissions increase, the equivalent CO2 emissions (cumulative greenhouse gas effect of CO2 and CH4) of the engine decrease. Increasing NG fraction also improves the brake thermal efficiency of the engine though NOx emissions increase. By optimizing the combustion phasing through control of the DI timing, brake thermal efficiencies of the order of ∼42% can be achieved. At high loads, advanced diesel DI timings typically correspond to the higher maximum cylinder pressure, maximum pressure rise rate, brake thermal efficiency and NOx emissions, and lower soot, CO, and CO2-equivalent emissions.

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

scholarly journals ECU calibration for gaseous dual fuel supply system in compression ignition engines

2020 ◽  
Vol 182 (3) ◽  
pp. 33-37
Author(s):  
Denys Stepanenko ◽  
Zbigniew Kneba
Keyword(s):  
Electronic Control Unit ◽  
Engine Performance ◽  
Control Unit ◽  
Primary Energy ◽  
Gaseous Fuel ◽  
Dual Fuel ◽  
Combustion Mode ◽  
Compression Ignition Engines ◽  
Engine Wear ◽  
Dual Fuel Engines

The dual fuel (DF) combustion mode is proven solution that allows to improve or get at the same level engine performance and reduce toxic compounds in exhaust gases which is confirmed by researchers and end-users. DF combustion mode uses two fuels gaseous fuel as a primary energy source and a pilot quantity of diesel fuel as ignition source. However, in order, to fully take advantage of the potential of the dual fuel mode, DF system must be proper calibrated. Despite the existence of commercial control systems for dual fuel engines on the market, the literature on the important parameters for the engine's operation introduced during calibration is scarce. This article briefly describes a concept of working algorithm and calibration strategy of a dual fuel electronic control unit (ECU) The purpose of calibration is to achieve the greatest possible use of an alternative gaseous fuel without causing accelerated engine wear.

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