scholarly journals Some Recent Developments in the Manufacture of Natural Gas Gasoline

1922 ◽  
Vol 14 (12) ◽  
pp. 1106-1110
Author(s):  
F. E. HOSMER ◽  
F. M. SEIBERT
Keyword(s):  
Natural Gas ◽  
Recent Developments

Fouling Mitigation for Laser Igniters in Natural Gas Engines

2022 ◽  
Author(s):  
Sreenath Gupta
Keyword(s):  
Natural Gas ◽  
Optical Element ◽  
Mitigation Strategies ◽  
Engine Operation ◽  
Natural Gas Engines ◽  
Fouling Mitigation ◽  
Power Draw ◽  
Final Approach ◽  
Recent Developments ◽  
Operational Envelope

Abstract Due to several recent developments in lasers and optics, laser igniters can now be designed to be (i) compact so as to have the same footprint as a standard spark plug, (ii) have low power draw, usually less than 50 Watts, and (iii) have vibration and temperature resistance at levels typical of reciprocating engines. Primary advantages of these laser igniters remain (i) extension of lean or dilution limits for ignition of combustible mixtures, and (ii) improved ignition at higher pressures. Recently, tests performed in a 350 kW 6-cylinder stationary natural gas reciprocating engine retrofitted with these igniters showed an extension of the operational envelope to yield efficiency improvements of the order of 2.6% points while being compliant with the mandated emission regulations. Even though laser igniters offer promise, fouling of the final optical element that introduces the laser into the combustion chamber is of concern. After performing a thorough literature search, a test plan was devised to evaluate various fouling mitigation strategies. The final approach that was used is a combination of three strategies and helped sustain an optical transmissivity exceeding 98% even after 1500 hrs. of continuous engine operation at 2400 rpm. Based on the observed trend in transmissivity, it now appears that laser igniters can last up to 6000 hrs. of continuous engine operation in a stationary engine running at 1800 rpm.

Fouling Mitigation for Laser Igniters in Natural Gas Engines

2020 ◽  
Author(s):  
Sreenath B. Gupta
Keyword(s):  
Natural Gas ◽  
Optical Element ◽  
Mitigation Strategies ◽  
Engine Operation ◽  
Natural Gas Engines ◽  
Fouling Mitigation ◽  
Power Draw ◽  
Final Approach ◽  
Recent Developments ◽  
Operational Envelope

Abstract Due to several recent developments in lasers and optics, laser igniters can now be designed to be (i) compact so as to have the same footprint as a standard spark plug, (ii) have low power draw, usually less than 50 Watts, and (iii) have vibration and temperature resistance at levels typical of reciprocating engines. Primary advantages of these laser igniters remain (i) extension of lean or dilution limits for ignition of combustible mixtures, and (ii) improved ignition at higher pressures. Recently, tests performed in a 350 kW 6-cylinder stationary natural gas reciprocating engine retrofitted with these igniters showed an extension of the operational envelope to yield efficiency improvements of the order of 2.6% points while being compliant with the mandated emission regulations. Even though laser igniters offer promise, fouling of the final optical element that introduces the laser into the combustion chamber is of concern. After performing a thorough literature search, a test plan was devised to evaluate various fouling mitigation strategies. The final approach that was used is a combination of three strategies and helped sustain an optical transmissivity exceeding 98% even after 1500 hrs. of continuous engine operation at 2400 rpm. Based on the observed trend in transmissivity, it now appears that laser igniters can last up to 6000 hrs. of continuous engine operation in a stationary engine running at 1800 rpm.

Recent developments on the hydrodynamics of floating liquid natural gas (FLNG)

2011 ◽  
Vol 38 (14-15) ◽  
pp. 1555-1567 ◽  
Author(s):  
W.H. Zhao ◽  
J.M. Yang ◽  
Z.Q. Hu ◽  
Y.F. Wei
Keyword(s):  
Natural Gas ◽  
Recent Developments ◽  
Liquid Natural Gas

Towards a cleaner natural gas production: recent developments on purification technologies

2018 ◽  
Vol 54 (15) ◽  
pp. 2461-2497
Author(s):  
Jibril Abdulsalam ◽  
Jean Mulopo ◽  
Mutiu K. Amosa ◽  
Samson Bada ◽  
Rosemary Falcon ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Production ◽  
Natural Gas Production ◽  
Recent Developments

Simultaneous capture of acid gases from natural gas adopting ionic liquids: Challenges, recent developments, and prospects

2020 ◽  
Vol 123 ◽  
pp. 109771 ◽  
Author(s):  
Junaid Haider ◽  
Saad Saeed ◽  
Muhammad Abdul Qyyum ◽  
Bilal Kazmi ◽  
Rizwan Ahmad ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Natural Gas ◽  
Acid Gases ◽  
Recent Developments

scholarly journals Selected Cases, Legislation and Developments in Oil and Gas Law

1972 ◽  
Vol 10 (3) ◽  
pp. 391
Author(s):  
Rowland J. Harrison
Keyword(s):  
Natural Gas ◽  
Oil And Gas ◽  
Research Seminar ◽  
Recent Developments

The topic of Recent Cases and Developments in Oil and Gas Law was introduced at the Canadian Petroleum Law Foundation Ninth Annual Research Seminar in Oil and Gas Law. This article is the paper on the topic, extended to deal with recent legislation, delivered at the Tenth Annual Research Seminar. The article concentrates its comments and discussions on two areas of recent developments in oil and gas law, namely, the attitude of Canadian Courts to the interpretation of the freehold petroleum and natural gas lease and the applicability of the doctrine of estoppel to terminated petroleum and natural gas lease.

scholarly journals Natural Gas Deregulation in British Columbia: A 1987 Perspective

1987 ◽  
Vol 26 (1) ◽  
pp. 35
Author(s):  
Mark M. Moseley
Keyword(s):  
British Columbia ◽  
Natural Gas ◽  
Current Status ◽  
Future Role ◽  
Company Limited ◽  
The Future ◽  
Recent Developments

This paper reviews the current status of natural gas deregulation in British Columbia, focussing on certain topical issues. It addresses the future role of the British Columbia Petroleum Corporation, the future role of Westcoast Transmission Company Limited, recent developments with respect to bypass initiatives and, lastly, the new British Columbia natural gas surplus determination procedures.

Sign in / Sign up

Export Citation Format

Share Document