Construction and Analysis of LNG Cold Energy Utilization System
Lin Yan, Y. Zhou
Abstract
The theme of this research is the intermediate fluid vaporizer (IFV) gasification system for an offshore liquefied natural gas floating storage regasification unit (LNG-FSRU). Based on reducing the loss of heat exchange and improve the cold energy utilization, an LNG cold energy utilization system combined with Rankine cycle power generation and desalination is proposed. On this basis, six different schemes of working medium combination are simulated and analyzed, and the optimal scheme of working medium combination is found. The results show that the net output power of the system is 5591 kw, and the system exergy efficiency is 30.38%. The annual economic benefit is CNY 39.4 million.
Topics & Concepts
Liquefied natural gasVaporizerEnvironmental scienceExergyWorking fluidWaste managementRankine cycleDegree RankineHeat exchangerDesalinationExergy efficiencyNatural gasProcess engineeringEngineeringPower (physics)Mechanical engineeringChemistryThermodynamicsBiochemistryPhysicsMembraneThermodynamic and Exergetic Analyses of Power and Cooling SystemsSpacecraft and Cryogenic TechnologiesAdvanced Thermodynamic Systems and Engines