Thermodynamic Analysis of Liquefied Natural Gas Refueling Stations and Onboard Fuel Storage Tanks for Mobile Applications

Liquefied natural gas (LNG) has up to 20% CO2 and 90% NOx fewer emissions than diesel; making it a cleaner alternative fuel for mobile applications. LNG has high volumetric energy density and is cost effective ($0.5 cheaper than diesel gallon equivalent). However, LNG is stored at low temperatures (-162ºC) and releases boil-off gas that contributes to the greenhouse gas (GHG) emissions. In collaboration with Westport Power Inc., the global leader in natural gas engines, we aim to identify the weaknesses in the LNG distribution chain to reduce the GHG emissions and the LNG delivery cost. This project proposes to use thermodynamic modeling to study the LNG properties across the state-of-the-art LNG refueling stations, refueling process, and onboard fuel storage tanks. The research output will be integrated with Westport’s data and expertise to develop new refueling strategies that minimize the LNG leakage and control the boil-off gas.

Faculty Supervisor:

Walter Merida


Amirhossein Sharafianardakani


Westport Innovations Inc.


Engineering - mechanical


Environmental industry


University of British Columbia



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