Petroleum Science >2022,??lssue 1:??- DOI: https://doi.org/10.1016/j.petsci.2021.11.013
Electric power generation technology of natural gas pressure reduction: Insights from black box-gray box hierarchical exergy analysis and ev Open?Access
文章信息
作者：Zhi-Dong Li, Qing-Lin Cheng, You-Wang Chen, Jiang-Dong Wei, Li-Li Lv, Hao Wu, Yang Liu,
作者單位：
投稿時間：
引用方式：Zhi-Dong Li, Qing-Lin Cheng, You-Wang Chen, Jiang-Dong Wei, Li-Li Lv, Hao Wu, Yang Liu, Electric power generation technology of natural gas pressure reduction: Insights from black box-gray box hierarchical exergy analysis and evaluation method, Petroleum Science, Volume 19, Issue 1, 2022, Pages 329-338, https://doi.org/10.1016/j.petsci.2021.11.013.
文章摘要
Abstract
Based on the “three box” exergy analysis model, a black box-gray box hierarchical exergy analysis and evaluation method is put forward in this paper, which is applied to evaluate the power generation technology of differential pressure produced by natural gas expansion. By using the exergy analysis theory, the black box - gray box hierarchical exergy analysis models of three differential pressure power generation technologies are established respectively. Firstly, the “black box” analysis models of main energy consuming equipment are established, and then the “gray box” analysis model of the total system is established. Based on the calculation results of exergy analysis indexes, the weak energy consumption equipment in the whole power generation process is accurately located. Taking a gas field in southwest China as an example, the comprehensive energy consumption evaluation of the three power generation technologies is carried out, and the technology with the best energy consumption condition among the three technologies is determined. Finally, the rationalization improvement measures are put forward from improving the air tightness, replacing the deflector and reducing the flow loss.
Based on the “three box” exergy analysis model, a black box-gray box hierarchical exergy analysis and evaluation method is put forward in this paper, which is applied to evaluate the power generation technology of differential pressure produced by natural gas expansion. By using the exergy analysis theory, the black box - gray box hierarchical exergy analysis models of three differential pressure power generation technologies are established respectively. Firstly, the “black box” analysis models of main energy consuming equipment are established, and then the “gray box” analysis model of the total system is established. Based on the calculation results of exergy analysis indexes, the weak energy consumption equipment in the whole power generation process is accurately located. Taking a gas field in southwest China as an example, the comprehensive energy consumption evaluation of the three power generation technologies is carried out, and the technology with the best energy consumption condition among the three technologies is determined. Finally, the rationalization improvement measures are put forward from improving the air tightness, replacing the deflector and reducing the flow loss.
關鍵詞
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Expansion differential pressure power generation; Black box-gray box hierarchy; Exergy analysis method; Weak link of energy consumption