Evaluation of Cryogenic Agents Cold Energy in Various Phase States

It is thermodynamically possible to utilize a low-temperature potential of the media for generation of useful work. Such processes are usually met during re-gasification of liquid natural gas and hydrogen. These processes cause a question of how much energy can be generated by utilizing cold energy of the media. This article deals with evaluation of cold energy capacity of different fluids. Also, T-q2 diagram was suggested for estimation of the cold energy utilization efficiency.