Compressed Natural Gas Fuel Composition Issues

1993 ◽  
Author(s):  
Brian T. Stokes
Keyword(s):  
Natural Gas ◽  
Fuel Composition ◽  
Compressed Natural Gas ◽  
Gas Fuel

Fuel Flexibility Influences on Premixed Combustor Blowout, Flashback, Autoignition and Instability

2006 ◽  
Author(s):  
Tim Lieuwen ◽  
Vince McDonell ◽  
Eric Petersen ◽  
Domenic Santavicca
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Dynamic Stability ◽  
Current Understanding ◽  
Fuel Composition ◽  
Fuel Flexibility ◽  
Lean Premixed ◽  
Gas Fuel ◽  
The Impact ◽  
Underlying Processes

This paper addresses the impact of fuel composition on the operability of lean premixed gas turbine combustors. This is an issue of current importance due to variability in the composition of natural gas fuel supplies and interest in the use of syngas fuels. Of particular concern is the effect of fuel composition on combustor blowout, flashback, dynamic stability, and autoignition. This paper reviews available results and current understanding of the effects of fuel composition on the operability of lean premixed combustors. It summarizes the underlying processes that must be considered when evaluating how a given combustor’s operability will be affected as fuel composition is varied.

Emissions From Heavy-Duty Trucks Converted to CNG

1992 ◽  
Vol 114 (3) ◽  
pp. 561-567 ◽  
Author(s):  
S. G. Fritz ◽  
R. I. Egbuonu
Keyword(s):  
Natural Gas ◽  
Fuel Economy ◽  
Chassis Dynamometer ◽  
Heavy Duty ◽  
Compressed Natural Gas ◽  
Diesel Particulate ◽  
Energy Equivalent ◽  
Gasoline Engines ◽  
Gas Fuel ◽  
Model Year

Emissions are reported for four heavy-duty trucks, which were converted to operate on compressed natural gas fuel. Two 1988 model year Ford F700 Series trucks equipped with 7.0 L gasoline engines and two 1986 model year GMC trucks equipped with DDC 8.2 L diesel engines were tested on a heavy-duty chassis dynamometer in a baseline condition and again after conversion to natural gas. The vehicles were tested over the EPA Urban Dynamometer Driving Schedule for Heavy-Duty Vehicles and at no-load curb idle. Regulated emissions of NOx, CO, HC, and diesel particulate, along with nonmethane hydrocarbons, are reported in grams/mile. Fuel economy is reported in energy-equivalent miles per gallon of gasoline or diesel fuel.

Structural characteristics of hydrogen and compressed natural gas fuel jets

2015 ◽  
Vol 40 (3) ◽  
pp. 1584-1597 ◽  
Author(s):  
Thomas Rogers ◽  
Phred Petersen ◽  
Lucien Koopmans ◽  
Petros Lappas ◽  
Alberto Boretti
Keyword(s):  
Natural Gas ◽  
Structural Characteristics ◽  
Compressed Natural Gas ◽  
Gas Fuel

Effect of Variation of Fuel Composition on Gas Turbine Off-Design Performance

2014 ◽  
Vol 666 ◽  
pp. 194-198 ◽  
Author(s):  
Ye Suel Park ◽  
Saemi Park ◽  
Joong Seong Lee ◽  
Gyung Min Choi
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Turbine Blade ◽  
Power Output ◽  
Metal Temperature ◽  
Fuel Composition ◽  
Heating Value ◽  
Control Scheme ◽  
Control Schemes ◽  
Gas Fuel

The effects of fuel composition is investigated in a gas turbine for natural gas. Fuel composition is divided H/C ratio and heating value. There are three control schemes for gas turbine. In this study, TIT control and TET control is adopted. A full off-design analysis of the gas turbine was performed. Performance characteristics and maximum turbine blade temperature are the main interests. The power output is decreased while heating value of fuel is increased and H/C ratio of fuel is decreased both control scheme. As heating value of natural gas decreased and H/C ratio of fuel increased, turbine blade temperature is increased in TIT control. Otherwise, Blade metal temperature is little influenced by H/C ratio of fuel in TET control scheme.

scholarly journals GAS SEBAGAI ENERGI ALTERNATIF PADA PENGERAK KAPAL

2018 ◽  
Author(s):  
Purwanto ◽  
Haryono
Keyword(s):  
Natural Gas ◽  
Diesel Fuel ◽  
Low Pressure ◽  
Liquefied Petroleum Gas ◽  
Compressed Natural Gas ◽  
Environment Friendly ◽  
Gas Emissions ◽  
Household Sector ◽  
Transportation Sector ◽  
Gas Fuel

<p>Liquefied Petroleum Gas (LPG) usage is liquefied petroleum gas which being melted by adding pressure and lowering the temperature, then the gas will turn into liquid. Butane (C4H10) and propane (C3H8) are the dominating components. The need for Liquefied Petroleum Gas (LPG) especially for the household sector is more effective when using the complement of 3 kg of LPG. Gas fuel for transportations is more suitable when using Compressed Natural Gas (CNG), which is a compressed natural gas as gas fuel. It is considered cleaner and environment friendly than gasoline and diesel fuel because of the gas emissions waste. This CNG is made by compressing methane (CN4) extracted from natural gas then stored and distributed in a pressure pneumatic. Gas for fuel will increase the engine workload, so it tends to increase the consumption of the fuel. However, the gas low pressure on the transportation sector can decrease the compression on the machines. It will reduce the capital up to 50%.</p><p><strong><em>Keywords :</em><em> Gas, Alternative, Ship’s Propulsion</em></strong></p><p> </p><p>Pemakain Gas Liquified Petroleum Gas (LPG)  yaitu gas minyak bumi yang dicairkan  dengan menambah tekanan dan menurunkan suhunya, gas akan berubah menjadi cair. Butana (C<sub>4</sub>H<sub>10</sub>) dan Propana (C<sub>3</sub>H<sub>8</sub>) merupakan komponen yang mendominasi.  Kebutuhan akan (LPG) khususnya untuk sektor rumah tangga efektif  mengunakan sebagai komplemen LPG 3 Kg. Sedangkan Bahan Bakar Gas untuk  sektor  transportasi darat dan transportasi laut lebih tepat mengunakan Compressed Natural Gas (CNG) yaitu merupakan Gas Alam yang terkompresi sebagai bahan bakar gas (BBG) yang  diangap lebih bersih jika dibandingkan dua bahan bakar minyak yaitu bensin dan solar karena emisi gas buangnya yang ramah lingkungan. CNG ini dibuat dengan  melakukan kompresi metana (CH<sub>4</sub>) yang diekstrak dari gas alam yang disimpan dan didistribusikan dalam bejana tekan. Bahan bakar gas sektor transportasi akan menambah beban mesin sehinga akan cenderung meningkatkan konsumsi specifik bahan bakar kendaraan bermotor. Namun demikian tekanan kerja Bahan Bakar Gas sektor transportasi rendah sehingga dapat menurunkan  kompresi pada mesin, maka  akan menekan biaya operasinal sampai 50%.</p><p><strong>Kata kunci  : <em>Bahan Bakar Gas, Compressed Natural Gas, Energy</em></strong></p>

scholarly journals Impact of natural gas fuel composition on criteria, toxic, and particle emissions from transit buses equipped with lean burn and stoichiometric engines

Energy ◽  
2013 ◽  
Vol 62 ◽  
pp. 425-434 ◽  
Author(s):  
Maryam Hajbabaei ◽  
Georgios Karavalakis ◽  
Kent C. Johnson ◽  
Linda Lee ◽  
Thomas D. Durbin
Keyword(s):  
Natural Gas ◽  
Fuel Composition ◽  
Lean Burn ◽  
Particle Emissions ◽  
Transit Buses ◽  
Gas Fuel
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