Optimal paths for a light-driven engine with a linear phenomenological heat transfer law

作     者：MA Kang, CHEN LinGen & SUN FengRui Postgraduate School, Naval University of Engineering, Wuhan 430033, China 

作者机构：Postgraduate School Naval University of Engineering Wuhan China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2010年第53卷第4期

页      面：917-926页

核心收录：

学科分类：07[理学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the Program for New Century Excellent Tal-ents in University of China (Grant No. 20041006) the Foundation for the Authors of National Excellent Doctoral Dissertation of China (Grant No. 200136) 

主　　题：linear phenomenological heat transfer law maximum work output minimum entropy generation irreversible lightdriven engine optimal control finite time thermodynamics 

摘      要：An irreversible light-driven engine is described in this paper, in which the heat transfer between the working fluid and the environment obeys a linear phenomenological heat transfer law [ q ∝Δ(T -1)], with a working fluid composed of the bimolecular reacting system 2SO 3 F■S 2 O 6 F2. Piston trajectories maximizing work output and minimizing entropy generation are determined for such an engine with rate-dependent loss mechanisms of friction and heat leakage. The optimal control theory is applied to determine the optimal configurations of the piston motion trajectory and the fluid temperature. Numerical examples for the optimal configuration are provided, and the obtained results are compared with those derived with Newtonian heat transfer law [ q ∝Δ(T )].