Volume 6, Issue 4, July 2018, Page: 67-73
Evaluation on the Organic Rankine Cycle Generator Sets Firstly Applied in China’s Petrochemical Industry
Chi Shenggang, Aromatic Hydrocarbon Department, SINOPEC Hainan Petrochemical Co., Ltd., Yangpu, China
Zhou Tiantian, School of Petroleum Engineering, Guangdong University of Petrochemical Technology, Maoming, China
Wang Fangsong, Aromatic Hydrocarbon Department, SINOPEC Hainan Petrochemical Co., Ltd., Yangpu, China
Received: Jul. 2, 2018;       Accepted: Jul. 16, 2018;       Published: Aug. 14, 2018
DOI: 10.11648/j.ogce.20180604.14      View  1112      Downloads  70
Abstract
The Organic Rankine Cycle (ORC) generator sets operated on the low-temperature waste heat device of an aromatics complex is the first demonstration set in the chinese petrochemical industry. By taking this set as an example, the paper introduced the circulation processes of the heating medium water and the ORC working medium in the low-temperature waste heat device. The author also summarized the process and equipment issues during the operation of the sets: in terms of process, improper design of bypass valves in the flow paths of hot water, control authority of the set is not available in DCS, and unstable generator loads under the influence of ambient temperature, etc.; in the field of equipment, bad equipment maintenance & repair as well as operability, manufacturing fault of KE710 generator, screw expander vibration, and loud running noise, etc. Exploring and solving the problems found in one cycle of the set operation are beneficial to the operation optimization of the ORC generator sets in the future. Therefore, the author proposed such solutions as redesigning the working medium circulating pump and using the latest and optimized screw expander, which resolved part of the problems as well as improved the reliability, maintainability and operability of the ORC generator sets. Through comparison between the calibration data and the operational data of the generator set under the same heat resources, it was found that the set’s operating load became less than its calibration load as the heat exchanger started to scale and the screw expander started to wear.
Keywords
China’s Petrochemical Industry, Low-Temperature Waste Heat Reuse, ORC Generator Sets, Evaluation
To cite this article
Chi Shenggang, Zhou Tiantian, Wang Fangsong, Evaluation on the Organic Rankine Cycle Generator Sets Firstly Applied in China’s Petrochemical Industry, International Journal of Oil, Gas and Coal Engineering. Vol. 6, No. 4, 2018, pp. 67-73. doi: 10.11648/j.ogce.20180604.14
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Reference
[1]
Chi Shenggang. “Assessment of commercial operration of first ORC power generation train in petrochemical industry”, J. Petroleum Refinery Engineering, 2017, V, 47, №2, pp. 60-64.
[2]
Wang Hua, Wang Huitao. “Organic Rankine cycle technology for low temperature waste heat generation”, M. Beijing, Science press, 2010 (in Chinese).
[3]
Matsuda K. “Low heat power generation system” [J]. Applied Thermal Engineering, 2014, V, 70, №2, pp. 1056-1061.
[4]
Qin Wenge. “The application of low-temperature heat recovery technology in Aromatic complex unit”, D, South China University of Technology, 2014. (in Chinese).
[5]
Wei Lil, Zhang, Yufen, Mu, Yongcha.“Study of evaporator in low-temperature energy conversion system using organic rankine cycle” CRYOGENICS, 2015, V, 208, №6, pp. 31-36.
[6]
Cao Binbin, Li Weiyi.“Analysis of Dual-Cycle Low-Temperature Waste Heat Recovery System with Screw Expander”, Journal of Tianjin University, 2010, V, 43, №4, pp. 310-314.
[7]
Wu Huagen, Tang Hao, Chen Wenqing, Xing Ziwen. “Research and development of Steam twin screw expander,” J. Journal of Xi'an Jiaotong University, 2014, V, 48, №3, pp. 1-5.
[8]
YANG Xin-le, HUANG Feifei, DAI etc. “Analysis of the Thermal Performance of a New Type Stepped Heat Exchange Organic Rankine Cycle System.” Journal of Engineering for Thermal Energy & Power, 2016, V, 31, №S5, pp. 16 – 21.
[9]
WANG Hui, MA Xinling, MENG Xiangrui. “Effect of mass flow rate on performance of organic Rankine cycle for power generation system with low-temperature waste heat” CIESC Journal, 2015, V, 66, №10, pp. 4185-4192.
[10]
Liu Guangbin, Zhao Yuanyang, Yang Qichao.“Study on characteristics of screw expander’s rotor profile”, J. Refrigeration And Air-conditioning, 2014, V, 14, №6, pp. 25-27.
[11]
Chi Shenggang. “Vibration reason analysis and treatment methods for the first ORC generation set in petrochemical industry,” J. Petroleum Refinery Engineering, 2017, V, 47, №11, pp. 43-47.
[12]
Donald E. Bently, Charles T. Hatch. “Fundamentals of Rotating Machinery Diagnostics,” M. China Machine Press, 2014 (in Chinese).
[13]
Cheng Shuangling, Li Guoliang, Zhang Qiuju. “Study of the noise control of screw compressor. ” Fluid machinery, 2007, V, 35, №2, pp. 43-45.
[14]
DONG Bing*, ZHANG Kai, GAO Lei, XING Zi-wen. “Performance Analysis of ORC Screw Expansion Power Generation Set in Different Regions and Seasons,” J. Chinese Journal of Refrigeration Technology, 2015, V, 35, №1, pp. 11-16.
[15]
DUAN Zhi-qiang, Liu Ming-zhi, FU Lin-jia. “The research of the reconstruction from spring mechanical seal into bellows mechanical seal,” J. Machinery, 2005, V, 32, №1, pp. 6-9.
Browse journals by subject