Abstract Liquefied natural gas (LNG) is an up and coming fuel resource that Liebherr is interested in using to fuel their T264 Mining Trucks. A LNG fuel tank will be designed to potentially replace the existing diesel fuel tank. This will be accomplished by first examining the properties and characteristics of LNG. Upon examination, it is revealed that there must be a material and insulation selection process in accordance to the properties of LNG. The material and insulation selected were A240 Type 304 Stainless Steel and Multi-layer Insulation (MLI) respectively. Possible tank designs were analyzed to meet the design specifications given by Liebherr. Liebherr requested that the space utilized be restricted to the volume enclosed by the diesel tank. There were two possible mitigation systems to be implemented in the tank design which are the use of pressure release valves and ullage tank. Our research called for the implementation of an ullage tank due to the boil-off gas produced within the tank. The pressure release valve will act as a safety measure for specific levels of pressure build up within the tank. From here we will begin modeling and optimizing the tank design in SolidWorks. The goal of the project is to provide Liebherr with a design scheme to implement LNG fuel tank technology on future mining trucks.
Abstract Liquefied natural gas (LNG) is an up and coming fuel resource that Liebherr is interested in using to fuel their T264 Mining Trucks. A LNG fuel tank will be designed to potentially replace the existing diesel fuel tank. This will be accomplished by first examining the properties and characteristics of LNG. Upon examination, it is revealed that there must be a material and insulation selection process in accordance to the properties of LNG. The material and insulation selected were A240 Type 304 Stainless Steel and Multi-layer Insulation (MLI) respectively. Possible tank designs were analyzed to meet the design specifications given by Liebherr. Liebherr requested that the space utilized be restricted to the volume enclosed by the diesel tank. There were two possible mitigation systems to be implemented in the tank design which are the use of pressure release valves and ullage tank. Our research called for the implementation of an ullage tank due to the boil-off gas produced within the tank. The pressure release valve will act as a safety measure for specific levels of pressure build up within the tank. From here we will begin modeling and optimizing the tank design in SolidWorks. The goal of the project is to provide Liebherr with a design scheme to implement LNG fuel tank technology on future mining trucks.