RESEARCH ON WASTE HEAT RECOVERY AND PARAMETER OPTIMIZATION OF OIL SHALE IN-SITU RECOVERY SYSTEM DRIVEN BY SOLAR TOWER HEATING

Hou Hongjuan; Wang Jing; Du Qiongjie; Cai Liang

doi:10.19912/j.0254-0096.tynxb.2021-1536

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (1) : 126-132. DOI: 10.19912/j.0254-0096.tynxb.2021-1536

RESEARCH ON WASTE HEAT RECOVERY AND PARAMETER OPTIMIZATION OF OIL SHALE IN-SITU RECOVERY SYSTEM DRIVEN BY SOLAR TOWER HEATING

Hou Hongjuan¹, Wang Jing¹, Du Qiongjie², Cai Liang³

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Abstract

Solar energy introduced in oil shale mining can reduce fossil energy consumption and carbon emissions. In this paper, an oil shale in-situ recovery system driven by solar tower is proposed, the steam parameters of the solar field and the spacing between producing wells are optimized. On this basis, the research on waste heat recovery is carried out to improve the energy efficiency of the system. The results show that by optimizing steam parameters and well spacing, the thermal efficiency η of the system can be increased from 22.4% to 33.5%, based on this, by recovering the steam waste heating of the production well, the thermal efficiency η of the system is further improved： increases to 38.4%, and the shale oil production cost PC decreases from 306.0 $/t to 174.7 $/t .

Key words

solar energy / oil shale / waste heat utilization / tower solar heating / parameter optimization / pinch point analysis

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Hou Hongjuan, Wang Jing, Du Qiongjie, Cai Liang. RESEARCH ON WASTE HEAT RECOVERY AND PARAMETER OPTIMIZATION OF OIL SHALE IN-SITU RECOVERY SYSTEM DRIVEN BY SOLAR TOWER HEATING[J]. Acta Energiae Solaris Sinica. 2023, 44(1): 126-132 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1536

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