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Effective energy analysis of cold energy utilisation in liquid air separation plants

Effective energy analysis of cold energy utilisation in liquid air separation plants
Jul 18, 2024
Author: DEAR AST

Effective energy analysis is an important analytical method for energy systems. Liquid air separation plant is a low-temperature liquid mixture with methane as the main component, including nitrogen, ethane, propane and other components, which has a large temperature difference and pressure with the outside world. Liquid air separation plants's temperature accompanied by phase change heat, so its cold energy is divided into sensible heat and latent heat. The effective energy analysis shows that when the pressure is certain, the ambient temperature difference increases and the effective energy of the liquid air separation plant cold increases, when the temperature is certain, as the pressure of the liquid air separation plant increases, the effective energy of the pressure increases, but the effective energy of the low temperature decreases. One of the reasons for this is that as the pressure increases, the bubble point of the liquid mixture rises and the temperature difference between it and the environment decreases, and as the pressure increases, the latent heat of vaporisation of the liquid mixture nears the critical zone decreases.

Dear Air Separation relies on a technical team formed by universities and research institutes to design reasonable and efficient liquid air separation plants, small air separation units and large air separation units.

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