Thermodynamic optimization of a neoteric geothermal poly‐generation system in an oilfield
Thermodynamic optimization of a neoteric geothermal poly‐generation system in an oilfield
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DOI：
10.1002/er.3057
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发表时间：
2013-12
影响因子：
4.6
通讯作者：
Tai-lu Li;Jia-ling Zhu;Wei Zhang;Jun Li
中科院分区：
文献类型：
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作者：
Tai-lu Li;Jia-ling Zhu;Wei Zhang;Jun Li
为了提高有机朗肯循环（ORC）装置和油田在高含水期的经济效益，采用石油伴生水作为热源。在此基础上，提出了一个由六个子系统组成的新型系统。由于夏季集输油（OGT）的热需求较低，多余的热量被用来驱动吸收式制冷机（ac），作为ORC夏季的辅助冷源。通过数值计算对系统性能进行了评价。结果表明，R601a是较好的选择。空调可供建筑空调使用，也可进一步降低冷凝温度，空调不建议原地热水旁通。可节约油6800吨左右，供暖系统冬季可供建筑采暖25.8万平方米以上，夏季可供生活热水47.3万人以上。更重要的是，每年还可以回收多达32000吨的石油。版权所有©2013 John Wiley & Sons， Ltd
To improve the economic performance of an organic Rankine cycle (ORC) plant and oilfields in the high water cut period, petroleum‐associated water was used as the heat source. Based on this idea, a novel system consisting of six subsystems was proposed. Because of a low heat demand for oil gathering and transportation (OGT) in summer, excess heat was used to drive absorption chillers (ACs), the auxiliary cold source for the ORC in summer. Numerical calculations were performed to evaluate system performances. Results indicate that R601a is preferable. The AC can either serve buildings for air conditioning or further reduce the condensing temperature, and no original geothermal water bypassing is advisable for the AC. OGT can save about 6800 tons of oil, and heating systems can serve more than 258 000 m2 of buildings for heating in winter and over 47 300 people for domestic hot water supply in summer. More importantly, up to 32 000 tons of oil can also be recovered each year. Copyright © 2013 John Wiley & Sons, Ltd.