Design of LNG gasification and thermal energy comprehensive utilization system for vehicles

The development of new energy vehicles is one of the important measures for national energy conservation and emission reduction, and natural gas is an important part of new energy. At present, most natural gas vehicles on the market are CNG vehicles, and LNG has many advantages, mainly solving the problem of vehicle life. This work has designed a vehicle LNG gasification system, including the design of stable self-pressurization and new gasifier, so that LNG can be used instead of CNG in the car, and it can be combined with the designed thermal energy comprehensive utilization system, which can utilize LNG. Cold energy can further reduce energy consumption and achieve energy saving and emission reduction. We first carried out the theoretical check calculation, then completed the piping design of the system, and carried out the ANSYS simulation analysis of the key component gasifier, and verified the simulation results through experiments, and further simulated the system. Analyze, design and optimize the control mode of the system. On this basis, the system control is programmed based on the single-chip microcomputer. We also made the system model. It uses the single-chip microcomputer to control and can switch and display various working modes.