Design of LNG Cold Energy Power Station Based on Thermal differential Power Generation

4th International Conference on Energy Equipment Science and Engineering

Song, Fuquan^1 ; Xu, Yeqing^1 ; Song, Xingxing^1 ; Gao, Haoze^1

School of Petrochemical and Energetic Engineering, Zhejiang Ocean University, Zhoushan, Zhejiang

316000, China^1

关键词: Differential power;    Ecological benefits;    Environmental benefits;    Environmental pollutions;    Liquefied Natural Gas (LNG);    Temperature differences;    Thermoelectric generators;    Transportation forms;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/242/2/022029/pdf
DOI  :  10.1088/1755-1315/242/2/022029

来源: IOP

【 摘 要 】

The world is currently facing increasing energy demand and increasing environmental pollution. Traditional energy resources are in short supply, and over-exploitation will cause serious damage to human living environment. Natural gas is an ideal clean fuel. Liquefied natural gas (LNG) is an important transportation form of natural gas. When LNG is used, with the increase of temperature and volume expansion, natural gas absorbs heat from the environment in large quantities. The resulting temperature difference provides the basis for the use of cold energy. Based on the Seebeck thermoelectric effect, a thermoelectric generator monomer based on LNG energy was designed in this paper. Under the condition of temperature difference of 60 °C, the single-unit power supply outputs 24V DC voltage; the power output power is 90W. Taking the annual natural gas requirement of Zhoushan as an example, an LNG cold energy power station was designed. The total circuit voltage is 96V and the total circuit current is 196A. Converted to 220V AC by inverter for daily power supply, and the annual power generation is 1.18×106 kilowatt-hours. It shows that the utilization of LNG cold energy by thermoelectric generator has great environmental benefit and ecological benefit.