Zhang Tao, Gong Liang, Sun Shuyu, Zhu Chuan-Yong
Physical Science and Engineering Division (PSE), Computational Transport Phenomena Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
College of New Energy, China University of Petroleum (East China), Qingdao 257099, Shandong, PR China.
ACS Omega. 2023 Jun 7;8(24):22195-22202. doi: 10.1021/acsomega.3c02522. eCollection 2023 Jun 20.
Geothermal energy has become an emerging resource with both large reserves and environmental friendliness and is playing an increasingly important role in the current energy transition progress. In this paper, a thermodynamically consistent flash model is developed to consider the effect of hydrogen bond on the phase equilibrium states of multi-component fluid to resolve the challenges of the special thermodynamic characteristic of water as the main working fluid. In order to provide practical suggestions to the industry, a number of possible effects have been investigated on the phase equilibrium states, including the hydrogen bond, environmental temperature, and fluid compositions. The calculated phase stability and phase splitting results can provide thermodynamic foundations for the establishment of the multi-component multi-phase flow model and also help optimize the development process to control the phase transitions for a number of engineering purposes.
地热能已成为一种储量巨大且环境友好的新兴资源，在当前的能源转型进程中发挥着越来越重要的作用。本文建立了一个热力学一致的闪蒸模型，以考虑氢键对多组分流体相平衡状态的影响，从而解决以水作为主要工作流体所具有的特殊热力学特性带来的挑战。为了给行业提供切实可行的建议，研究了多种可能对相平衡状态产生影响的因素，包括氢键、环境温度和流体组成。计算得到的相稳定性和相分裂结果可为建立多组分多相流模型提供热力学基础，也有助于优化开发过程，以便出于多种工程目的控制相变。
