LNG as Fuel for Aircraft Essay Example | Topics and Well Written Essays - 1000 words

LNG as Fuel for Aircraft - render ExampleConceptual Configuration 1.1 Liquefaction Cycle Liquefaction allows gas to be stored economically. Propane Precooled Multi-Component Refrigerant Cycle (Carsons Report, pg 221) will be used to create the LNG from the natural gas feed. This process also known as the C3-MR system is used wide-eyedly in todays LNG industries. This system uses a multi-component refrigerant, usually nitrogen, methane, propane, butane, ethane and pentane to condense and evaporate natural gas in one cycle over a wide range of temperatures.( http//books.google.com.au/books?id=b14hnWUAOPYC&pg=PA115&lpg=PA115&dq=propane-precooled+multi-component+refrigerant+cycle&source=bl&ots=NyBe3x3X2H&sig=lGG5YDOJ9TkF_ntOmXjcG2Es2Fc&hl=env=onepage&q=propane-precooled%20multi-component%20refrigerant%20cycle&f=false) 1.2 Storage installation In this section we will show our storage facility by calculating the storage contentedness needed (table 1.2.1), studying the current LNG stora ge tanks and their capacity and choosing the appropriate facility for our project. Storage Capacity physique of Flights per day 14 Usage per Flight LNG assiduity (kg/m3) 455 Weight (kg) 26043.97 Volume(m3) 57.23949 Usage per Day LNG Density (kg/m3) 455 Weight (kg) 364615.6 Volume(m3) 801.3529 Needed storage capacity per day (m3) LNG 801.3529 Annual Storage Capacity (m3) LNG 292493.8 display board 1.2.1 Storage Capacity Calculation LNG is a cryogenic liquid. The term cryogenic means low temperature, primarily below -73C. LNG is a clear liquid, with a density of about 45% that of water. The LNG is typically stored in double-walled tanks at atmospheric pressure. The storage tank is actually a tank within a tank. The annular pose between the two tank walls is filled with insulation. The inner tank, in contact with the LNG, is made of 9% nickel note steel, suitable for cryogenic service and structural loading of LNG. The outer tan k is generally made of ascorbic acid steel or prestressed concrete. 1.3 Processing Facility This stage accommodates the requirements to sub-cool LNG prior to the loading into the aircraft fuel pods. Lng needs to be sub cooled to -161 degrees Celsius for it to remain in the liquid form. 1.4 Distribution Facility Our distribution facility will include pipings, pumps and hydrants required to deliver LNG from the storage tanks to the aircraft. Pipeline System As the liquefaction and storage facilities are within the drome boundary, the pipeline be will be lesser than that of distribution and transportation through trucks. Sizing requirements to ache the distance from the storage tanks to the aircraft. To be able to simultaneously fill 2 aircrafts at one time. chthonic the ground (trench covered by open grating) to prevent heat penetration. Pipeline insulation by cryptic polyurethane to prevent heat infiltration. 2. Ground Systems Operating Procedure The primary operations that wi ll be considered in this section Receipt of gas for liquefaction Liquefaction Storage Delivery of LNG In our project, we will be receiving liquefied natural gas, which will eliminate the process of liquefaction. The reason for such an arrangement would be that the amount of LNG role for our operation does not require a facility to produce LNG with a natural gas feed. Also, costs are not feasible to create a natural gas feed at the airports. With this, we strike on to the