Implementing Black Hole as Efficient Power Plant

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英文篇名：Implementing Black Hole as Efficient Power Plant 作者：魏少文 ; 刘玉孝 英文作者：Shao-Wen Wei;Yu-Xiao Liu;Institute of Theoretical Physics & Research Center of Gravitation, Lanzhou University; 英文关键词：black hole;;heat engine;;phase transition 中文刊名：CITP 英文刊名：理论物理(英文版) 机构：Institute of Theoretical Physics & Research Center of Gravitation, Lanzhou University; 出版日期：2019-06-01 出版单位：Communications in Theoretical Physics 年：2019 期：v.71 基金：Supported by the National Natural Science Foundation of China under Grant Nos.11675064,11522541,and 11375075;; the Fundamental Research Funds for the Central Universities under Grant No.lzujbky-2016-115 语种：英文; 页：CITP201906012 页数：7 CN：06 ISSN：11-2592/O3 分类号：87-93

摘要

Treating the black hole molecules as working substance and considering its phase structure, we study the black hole heat engine by a charged anti-de Sitter black hole. In the reduced temperature-entropy chart, it is found that the work, heat, and efficiency of the engine are free of the black hole charge. Applying the Rankine cycle with or without a back pressure mechanism to the black hole heat engine, the compact formula for the efficiency is obtained.And the heat, work and efficiency are worked out. The result shows that the black hole engine working along the Rankine cycle with a back pressure mechanism has a higher efficiency. This provides a novel and efficient mechanism to produce the useful mechanical work, and such black hole heat engine may act as a possible energy source for the high energy astrophysical phenomena near the black hole.
        Treating the black hole molecules as working substance and considering its phase structure, we study the black hole heat engine by a charged anti-de Sitter black hole. In the reduced temperature-entropy chart, it is found that the work, heat, and efficiency of the engine are free of the black hole charge. Applying the Rankine cycle with or without a back pressure mechanism to the black hole heat engine, the compact formula for the efficiency is obtained.And the heat, work and efficiency are worked out. The result shows that the black hole engine working along the Rankine cycle with a back pressure mechanism has a higher efficiency. This provides a novel and efficient mechanism to produce the useful mechanical work, and such black hole heat engine may act as a possible energy source for the high energy astrophysical phenomena near the black hole.

引文

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