The Calculation And Numerical Simulation Of Heat Transfer Regarding Submerged Combustion Vaporizer For LNG

The issues of energy and environment in today’s society have become increasinglyprominent, energy saving and environmental protection is the future direction of eachindustry positioning. The characteristics of China’s energ is "rich in coal, in oil, less gas",coal, oil have supportted the social and economic development of our country, but inrecent years the accompanying environmental problem is getting worse, as the world’sliquefied clean energy natural gas LNG can be a good solution to this problem, The futureof LNG development in China is broad.LNG vaporizer is a major equipment liquefied natural gas conveyor chain. LNGsubmerged combustion vaporizer SCV can afford not only base load, but also for peakshaving, it has great significance for mega-cities Beijing which appears "gas shortage"every winter of.In this paper, SCV as the research object, it analyse the calculation of the theoreticaland numerical simulation related to its heat transfer problems. The theoretical part of theheat transfer problem include the heat transfer of internal tube, the overall tube andcomprehensive. For its tube heat exchanger it has gives the introduction of boiling heattransfer and the physical parameters of natural gas. When analyzing the outer heat transfer,gives depth analysis of the bath temperature, and simplifies the calculation of the heattransfer outer the tube. Taking the actual running SCV as example to introduce the methodof calculation of heat transfer and calculating on the base of the actual parameters byinverse in order to illustrate the reliability of the calculation method.While taking the structure of the actual operation SCV as the physical model andcombining the design parameters of the tube, making Fluent numerical simulation of theinternal and outer the tube. The results showed the flow field distribution of the tube sideand shell side, and analysing the influence factor in the tube side of the vaporization rateand in shell side of average turbulent kinetic energy of the water bath passes.