MARAD Evaluates Natural Gas v. Conventional Fuel Emissions

By George Backwell
Thursday, August 28, 2014
LNG Fuelling Wharf: Rendering courtesy of Harvey Gulf

The Maritime Administration (MARAD) informs it has released a study that evaluates total fuel cycle emissions for natural gas versus conventional marine fuels. This study was conducted as a part of MARAD’s Maritime Environmental & Technology Assistance program, which focuses efforts on emerging marine transportation and environmental issues.

Results of the study showed that the use of natural gas as a propulsion fuel can reduce air quality pollutants and reduce major greenhouse gas emissions when compared to conventional fuels.

The information provided by this study is important as marine transportation stakeholders evaluate the use of natural gas as aviable alternative propulsion fuel for reducing air polluting emissions.

The research was conducted through a cooperative partnership with the Maritime Administration, the University of Delaware and The Rochester Institute of Technology.

Abstract of the Study
This study evaluates the total fuel cycle emissions associated with natural gas as a marine fuel. The study uses updated data on leakage rates in the natural gas fuel cycle to compare emissions from liquefied natural gas (LNG) or compressed natural gas (CNG) to petroleum marine fuels.

We find that total fuel cycle analyses for maritime case studies show that natural gas fuels reduce air quality pollutants substantially, and reduce major greenhouse gas (GHG) emissions slightly when compared to conventional marine fuels (low-sulfur and high-sulfur petroleum).

We also find that the upstream configuration for natural gas supply matters in terms of minimizing GHG emissions on a total fuel cycle basis, and current infrastructure for marine fuels may produce fewer GHGs.

Continued improvements to minimize downstream emissions of methane during vessel-engine operations will also contribute to lower GHG emissions from marine applications of natural gas fuels. This is important because growing supplies of natural gas can provide a feasible and economic alternative fuel to improve air quality in and near populated regions of the world.

The study can be viewed on the MARAD website, at http://www.marad.dot.gov/documents/Total_Fuel_Cycle_Analysis_for_LNG.pdf  

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

On USCG Anniversary, Gov. McAuliffe Urges Hurricane Preparedness

Gov. Terry McAuliffe encouraged Virginians to get ready for hurricane season and provided an update on the commonwealth’s preparations Friday at a press conference

Optimized Tug-Barge System Designs by Robert Allan

Optimized Tug-Barge System Designs by Robert Allan Ltd. by David R. Connand Robert G. Allan, P.Eng. Some veteran Mississippi pushboats and barges have been

WKCTC to Host Open House for ILM Institute

West Kentucky Community and Technical College will host an open house and ribbon cutting for the Inland Logistics and Marine Institute August 10 from 4 ­– 6 p.

Technology

WKCTC to Host Open House for ILM Institute

West Kentucky Community and Technical College will host an open house and ribbon cutting for the Inland Logistics and Marine Institute August 10 from 4 ­– 6 p.

NOIA Applauds Senate Passage of OPENS Act

NOIA President Randall Luthi issued the following statement on the Senate Energy and Natural Resources Committee’s passage of the OPENS Act, which will open new

Google Maps Goes Coastal with Unmanned Boat

A new high-tech unmanned vessel, launched with the help of Google, will use innovative technologies from the boatbuilding and mapping fields to map shorelines and

Environmental

On USCG Anniversary, Gov. McAuliffe Urges Hurricane Preparedness

Gov. Terry McAuliffe encouraged Virginians to get ready for hurricane season and provided an update on the commonwealth’s preparations Friday at a press conference

Optimized Tug-Barge System Designs by Robert Allan

Optimized Tug-Barge System Designs by Robert Allan Ltd. by David R. Connand Robert G. Allan, P.Eng. Some veteran Mississippi pushboats and barges have been

Thordon Bearings Secures AK Ferry Contract

Thordon Bearings has received an order to supply its COMPAC system to two Alaska Ferry newbuilds under construction at the Vigor Industrial shipyard in Ketchikan, Alaska.

Fuels & Lubes

Thordon Bearings Secures AK Ferry Contract

Thordon Bearings has received an order to supply its COMPAC system to two Alaska Ferry newbuilds under construction at the Vigor Industrial shipyard in Ketchikan, Alaska.

West Africa's August Crude Exports to Asia to Slip

West African crude oil exports to Asia were expected to fall to 1.84 million barrels per day (bpd) in August, Reuters data and a survey of traders showed.     Slower

ClassNK Releases Guidelines for CNG Carriers

Classification society ClassNK has released its Guidelines for Compressed Natural Gas (CNG) Carriers.   Global economic and population growth is bringing about

Government Update

Thordon Bearings Secures AK Ferry Contract

Thordon Bearings has received an order to supply its COMPAC system to two Alaska Ferry newbuilds under construction at the Vigor Industrial shipyard in Ketchikan, Alaska.

West Africa's August Crude Exports to Asia to Slip

West African crude oil exports to Asia were expected to fall to 1.84 million barrels per day (bpd) in August, Reuters data and a survey of traders showed.     Slower

DHS, Postal Service to Dedicate USCG Forever Stamp

U.S. Department of Homeland Security (DHS) and Postal Service leaders are scheduled to dedicate the United States Coast Guard Forever stamp during a ceremony Tuesday at Coast Guard Headquarters.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Navigation Pipelines Salvage Ship Repair Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2128 sec (5 req/sec)