Thermodynamic optimization for dissociation process of gas hydrates

被引:14
作者
Bi, Yuehong [1 ]
Chen, Jie [1 ]
Miao, Zhen [1 ]
机构
[1] Beijing Univ Technol, Inst Civil & Architectural Engn, Beijing 100124, Peoples R China
关键词
Gas hydrate dissolution process; The cool discharging process; Thermodynamic optimization; Entropy generation minimization; Optimal heating rate; COOL-STORAGE PROCESS; METHANE HYDRATE; HEAT-TRANSFER; COLD-STORAGE; PHASE-CHANGE; CONTACT; LIQUID; WATER; DECOMPOSITION; KINETICS;
D O I
10.1016/j.energy.2016.03.029
中图分类号
O414.1 [热力学];
学科分类号
摘要
The dissociation process of gas hydrates is also the discharging process of the gas hydrate cool storage system. In order to reduce the entropy generation rate of the gas hydrate dissociation process, this paper takes the entropy generation minimization as the optimization objective to perform thermodynamic optimization for the related process. By establishing thermodynamic optimization model of the gas hydrate dissolution process based on entropy generation analysis, both the optimal control strategy and the optimal heating rate of the gas hydrate dissolution process are determined. The entropy generation rate related to the optimal heating rate decreases by 7.5% compared with normal situation. The research results can provide important guidelines for optimal design and operation of the dissolution process of gas hydrates related to the gas hydrate cool storage system. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:270 / 276
页数:7
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