From Concept to Commercial Operation: The Tri-Fuel Injector Used for LPG and Naphtha Applications

2001 ◽  
Author(s):  
A. W. Newman ◽  
P. S. Nixon ◽  
R. I. Wilms ◽  
D. M. Taylor ◽  
M. D. Cornwell
Keyword(s):  
Liquid Phase ◽  
Load Shedding ◽  
Dual Fuel ◽  
Fuel System ◽  
Fuel Injector ◽  
Rotary Pump ◽  
Diesel Fuels ◽  
Liquid Petroleum Gas ◽  
Commercial Operation ◽  
Near Future

The tri-fuel injector is an extension of the standard dual fuel multi passage injector to cover additional fuels such as Liquid Petroleum Gas (LPG) and Naphtha at medium pumping pressure (less than 40 Bara). There is an additional passage designed for metering the LPG or Naphtha in liquid phase. The fuel system uses a non-contacting rotary pump with modern inverter technology for the pumping of these fuels. Both tri-fuel injector and fuel system are now in commercial operation on two Tornado engines using LPG, natural gas and diesel fuels. The LPG system is operating just below 30 Bara pumping pressure, and has accumulated about 1029 operating hours on the lead engine. LPG load shedding capability has been proven on one engine. Commercial operation of the Typhoon engine on Naphtha at medium pumping pressures (< 40 Bara), with an improved tri-fuel injector, will commence in the near future.

V64.3A Gas Turbine Natural Gas Burner Development

2002 ◽  
Author(s):  
Heinrich Hermsmeyer ◽  
Bernd Prade ◽  
Uwe Gruschka ◽  
Udo Schmitz ◽  
Stefan Hoffmann ◽  
...  
Keyword(s):  
Gas Turbines ◽  
Nox Emissions ◽  
Fuel System ◽  
Combustion System ◽  
Standard Design ◽  
Commercial Operation ◽  
Annular Combustor ◽  
Gas Burner ◽  
Development Approach ◽  
Near Future

From the very first beginning of the V64.3A development the HR3 burner was selected as standard design for this frame. The HR3 burner was originally developed for the Vx4.2 and Vx4.3 fleet featuring silo combustors in order to mitigate the risk of flashback and to improve the NOx-emissions (Prade, Streb, 1996). Due to its favourable performance characteristics in the Vx4.3 family the advanced HR3 burner was adapted to the Vx4.3A series with annular combustor (hybrid burner ring – HBR). This paper reports about the burner development for V64.3A gas turbines to reach NOx emissions below 25 ppmvd and CO emissions below 10 ppmvd. It is described how performance and NOx emissions have been optimised by implementation of fuel system and burner modifications. The development approach, emission results and commercial operation experiences as well are described. The modifications of the combustion system were successfully and reliably demonstrated on commercially running units. NOx emissions considerably below 25ppmvd were achieved at and above design baseload. An outlook to further steps of V64.3A burner development in the near future will be given in this paper.

RESEARCH OF INDICATORS OF A VEHICLE WITH A DIESEL WORKING ON DIESEL AND DIESEL GAS CYCLES USING THE MATHEMATICAL MODEL

2020 ◽  
pp. 14-19
Author(s):  
Serhii Kovbasenko ◽  
Andriy Holyk ◽  
Serhii Hutarevych
Keyword(s):  
Mathematical Model ◽  
Diesel Engine ◽  
Environmental Performance ◽  
Energy Performance ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Vehicles ◽  
Diesel Cycle ◽  
The Mathematical Model

The features of an advanced mathematical model of motion of a truck with a diesel engine operating on the diesel and diesel gas cycles are presented in the article. As a result of calculations using the mathematical model, a decrease in total mass emissions as a result of carbon monoxide emissions is observed due to a decrease in emissions of nitrogen oxides and emissions of soot in the diesel gas cycle compared to the diesel cycle. The mathematical model of a motion of a truck on a city driving cycle according to GOST 20306-90 allows to study the fuel-economic, environmental and energy indicators of a diesel and diesel gas vehicle. The results of the calculations on the mathematical model will make it possible to conclude on the feasibility of converting diesel vehicles to using compressed natural gas. Object of the study – the fuel-economic, environmental and energy performance diesel engine that runs on dual fuel system using CNG. Purpose of the study – study of changes in fuel, economic, environmental and energy performance of vehicles with diesel engines operating on diesel and diesel gas cycles, according to urban driving cycle modes. Method of the study – calculations on a mathematical model and comparison of results with road tests. Bench and road tests, results of calculations on the mathematical model of motion of a truck with diesel, working on diesel and diesel gas cycles, show the improvement of environmental performance of diesel vehicles during the converting to compressed natural gas in operation. Improvement of environmental performance is obtained mainly through the reduction of soot emissions and nitrogen oxides emissions from diesel gas cycle operations compared to diesel cycle operations. The results of the article can be used to further develop dual fuel system using CNG. Keywords: diesel engine, diesel gas engine, CNG

scholarly journals Electronic control unit development and emissions evaluation for hydrogen–diesel dual-fuel engines

2018 ◽  
Vol 10 (12) ◽  
pp. 168781401881407
Author(s):  
Yasin Karagöz ◽  
Majid Mohammad Sadeghi
Keyword(s):  
Diesel Engines ◽  
Working Condition ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Dual Fuel ◽  
Hydrogen Energy ◽  
Compression Ignition ◽  
Electronic Control ◽  
Fuel System ◽  
Compression Ignition Engines

In this study, it was aimed to operate today’s compression ignition engines easily in dual-fuel mode with a developed electronic control unit. Especially, diesel engines with mechanical fuel system can be easily converted to common-rail fuel system with a developed electronic control unit. Also, with this developed electronic control unit, old technology compression ignition engines can be turned into dual-fuel mode easily. Thus, thanks to the flexibility of engine maps to be loaded into the electronic control unit, diesel engines can conveniently be operated with alternative gas fuels and diesel dual fuel. In particular, hydrogen, an alternative, environmentally friendly, and clean gas fuel, can easily be used with diesel engines by pilot spraying. Software and hardware development of electronic control unit are made, in order to operate a diesel engine with diesel+hydrogen dual fuel. Finally, developed electronic control unit was reviewed on 1500 r/min stable engine speed on different hydrogen energy rates (0%, 15%, 30%, and 45% hydrogen) according to thermic efficiency and emissions (CO, total unburned hydrocarbons, NOx, and smoke), and apart from NOx emissions, a significant improvement has been obtained. There was no increased NOx emission on 15% hydrogen working condition; however, on 45% hydrogen working condition, a dramatic increase arose.

scholarly journals Techno-economic Analysis in the Modification of 100 TEUs Container Carrier by Using LNG as Dual Fuel System

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Agoes Santoso ◽  
Beny Cahyono ◽  
Edi Jadmiko ◽  
Tony Bambang Musriyadi ◽  
Kevin Garsia
Keyword(s):  
Economic Analysis ◽  
Dual Fuel ◽  
Fuel System

A Dual Fuel Injector for Diesel Engines

1985 ◽  
Author(s):  
Shinichi Goto ◽  
Kazuo Kontani
Keyword(s):  
Diesel Engines ◽  
Dual Fuel ◽  
Fuel Injector

scholarly journals Numerical Analysis of High-Pressure Direct Injection Dual-Fuel Diesel-Liquefied Natural Gas (LNG) Engines

Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 261 ◽  
Author(s):  
Alberto Boretti
Keyword(s):  
High Pressure ◽  
Steady State ◽  
Liquid Phase ◽  
Natural Gas ◽  
Power Density ◽  
Conversion Efficiency ◽  
Liquefied Natural Gas ◽  
Dual Fuel ◽  
Fuel Conversion ◽  
Better Than

Dual fuel engines using diesel and fuels that are gaseous at normal conditions are receiving increasing attention. They permit to achieve the same (or better) than diesel power density and efficiency, steady-state, and substantially similar transient performances. They also permit to deliver better than diesel engine-out emissions for CO2, as well as particulate matter, unburned hydrocarbons, and nitrous oxides. The adoption of injection in the liquid phase permits to further improve the power density as well as the fuel conversion efficiency. Here, a model is developed to study a high-pressure, 1600 bar, liquid phase injector for liquefied natural gas (LNG) in a high compression ratio, high boost engine. The engine features two direct injectors per cylinder, one for the diesel and one for the LNG. The engine also uses mechanically assisted turbocharging (super-turbocharging) to improve the steady-state and transient performances of the engine, decoupling the power supply at the turbine from the power demand at the compressor. Results of steady-state simulations show the ability of the engine to deliver top fuel conversion efficiency, above 48%, and high efficiencies, above 40% over the most part of the engine load and speed range. The novelty of this work is the opportunity to use very high pressure (1600 bar) LNG injection in a dual fuel diesel-LNG engine. It is shown that this high pressure permits to increase the flow rate per unit area; thus, permitting smaller and lighter injectors, of faster actuation, for enhanced injector-shaping capabilities. Without fully exploring the many opportunities to shape the heat release rate curve, simulations suggest two-point improvements in fuel conversion efficiency by increasing the injection pressure.

scholarly journals A Analisis Kinerja PLTD Dual-Fuel Di PT. Indonesia Power UBP Bali

Jurnal METTEK ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 45
Author(s):  
I Gede Kusuma Putra ◽  
I Gusti Bagus Wijaya Kusuma ◽  
I Made Dwi Budiana Penindra
Keyword(s):  
Power Plant ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Gas Flow ◽  
Dual Fuel ◽  
Producer Gas ◽  
Fuel System ◽  
Gas Flow Rate ◽  
Air Valve ◽  
Electrical Loads

Penelitian kinerja PLTD dual-fuel berbahan bakar solar dan gas hasil gasifikasi bambu di PT. Indonesia Power UBP Bali ini bertujuan untuk mengetahui kemampuan bambu agar mampu mengurangi penggunaan bahan bakar solar yang kini ketersediaannya semakin menispis dengan menggunakan sistem dual-fuel pada pembangkit listrik tenaga diesel. Pengukuran dilakukan dengan mengukur laju alir udara pembakaran dengan bukaan 0%, 50% dan 100%, laju alir gas produser (syngas), konsumsi bahan bakar spesifik, dan daya genset, serta rasio beban listrik yang diberikan 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% dengan kapasitas genset 40 kW. Data yang didapatkan menunjukkan daya yang dihasilkan dari mode dual-fuel lebih besar yaitu 36,6 kW, dan konsumsi bahan bakar yang lebih sedikit yaitu 6,55 L/jam dengan 100% bukaan valve udara pembakaran.Substitusi penggunaan bahan bakar syngas terhadap bahan bakar solar mampu mengurangi total penggunaan bahan bakar solar sebesar 47,3%. Research on the performance of dual-fuel diesel power plant with diesel fuel and bamboo gasification gas in PT. Indonesia Power UBP Bali aims to determine the ability of bamboo to be able to reduce the use of diesel fuel which is now the availability is running low, by using a dual-fuel system in a diesel power plant. Measurements were made by measuring the combustion air flow with openings of 0%, 50% and 100%, producer gas flow rate (syngas), specific fuel consumption, and generator power, and the ratio of electrical loads given 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, with a generator capacity of 40 kW. The data obtained shows that the power produced from the dual-fuel mode is greater at 36.6 kW, and less fuel consumption of 6.55 L/h with 100% combustion air valve openings.The substitution for the use of syngas fuel for diesel fuel is able to reduce the total use of diesel fuel by 47.3%.

Investigation of ammonia and hydrogen as CO2-free fuels for heavy duty engines using a high pressure dual fuel combustion process

2020 ◽  
pp. 146808742096787
Author(s):  
Stephanie Frankl ◽  
Stephan Gleis ◽  
Stephan Karmann ◽  
Maximilian Prager ◽  
Georg Wachtmeister
Keyword(s):  
High Pressure ◽  
High Pressures ◽  
Numerical Study ◽  
Combustion Process ◽  
Combustion Efficiency ◽  
Dual Fuel ◽  
Parameter Study ◽  
Fuel Injector ◽  
Cfd Model ◽  
Pilot Fuel

This work is a numerical study of the use of ammonia and hydrogen in a high-pressure-dual-fuel (HPDF) combustion. The main fuels (hydrogen and ammonia) are direct injected and ignited by a small amount of direct injected pilot fuel. The fuels are injected using a dual fuel injector from Woodward L’Orange, which can induce two fuels independently at high pressures up to 1800 bar for the pilot fuel and maximum 500 bar for the main. The numerical CFD-model gets validated for of hydrogen-HPDF with experimental data. Due to safety issues at the test rig it was not possible to use ammonia in the experiments, so it is modelled using the numerical model. It is assumed that the CFD-model also gives qualitative correct results for the use of ammonia as main fuel, so a parameter study of ammonia-HPDF is made. The results for the hydrogen-HPDF show, that hydrogen can be used in the engine without any further modifications. The combustion is very stable, and the hydrogen ignites almost immediately when it enters the combustion chamber. The results of the ammonia combustion indicate, that the HPDF combustion mode can handle ammonia effectively. It seems beneficial to inject the ammonia at higher pressures than hydrogen. Also pre-heating the ammonia can increase the combustion efficiency.

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