Application analysis on a geothermal + multi-energy complementary energy system for an oilfield area

doi:10.3969/j.issn.2097-0706.2023.12.008

Abstract

Abstract:

As a kind of renewable and clean energy， geothermal energy can be widely applied in green and sustainable heating. Based on the thermal and electricity demands of Jidong Oilfield， a geothermal + multi-energy complementary energy system is designed for this area. The dynamic model of the system is constructed by TRSYS software to analyse its daily and annual operating conditions. The simulation results show that the typical daily cumulative power productions of the photovoltaic module in non-heating season and heating season are 1 726.0 kW·h and 1 301.0 kW·h， respectively， and its daily cumulative off-grid power are 4 636.6 kW·h and 5 355.9 kW·h， respectively. On annual scale， the cumulative power output of the photovoltaic module and the off-grid power are 475.8 MW·h and 1 856.7 MW·h. The installation of a water source heat pump rises the annual utilization rate of heat in waste water by 47.7%. The coefficient of performance （COP） can be improved by increasing geothermal water temperature and flow rate on source side， but cannot be improve by increasing flow rate on source side alone while lowering the heat pump outlet temperature. In terms of environmental protection， the photovoltaic module can reduce the CO₂ emissions from this system by 271.3 t per year. As 92.3% energy of the system is generated by clean energy， this system shows excellent environmental performance.

Key words: oilfield, geothermal water utilization, photovoltaic power generation, TRNSYS model, environmental benefits, multi-energy complementary, heat pump, renewable energy

CLC Number:

TK01

SUN Guanyu, WANG Yongzhen, YAN Yican, WANG Yufei, ZHANG Ping, ZHANG Lanlan. Application analysis on a geothermal + multi-energy complementary energy system for an oilfield area[J]. Integrated Intelligent Energy, 2023, 45(12): 63-70.

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References 19

[1]	IEA. 世界能源展望2019[R]. 巴黎: 国际能源署, 2019.
[2]	田勇, 王卫民, 赵岩. 京津冀地热资源综合利用研究[J]. 中国煤炭地质, 2020, 32(2):51-58.
	TIAN Yong, WANG Weimin, ZHAO Yan. Study on geothermal resource integrated utilization in Beijing-Tianjin-Hebei area[J]. Coal Geology of China, 2020, 32(2):51-58.
[3]	WANG Y Z, LI C J, ZHAO J, et al. The above‑ground strategies to approach the goal of geothermal power generation in China: State of art and future researches[J]. Renewable & Sustainable Energy Reviews, 2021, 138:110557.
[4]	赵军, 尹洪梅, 王永真, 等. 基于全生命周期地热发电系统的环境影响评价[J]. 热科学与技术, 2019, 18(6):504-510.
	ZHAO Jun, YIN Hongmei, WANG Yongzhen, et al. Environmental impact assessment of geothermal power generation system basedon life cycle assessment[J]. Journal of Thermal Science and Technology, 2019, 18(6):504-510.
[5]	WANG Y Z, DU Y P, WANG J Y, et al. Comparative life cycle assessment of geothermal power generation systems in China[J]. Resources,Conservation and Recycling, 2020, 155:104670. doi: 10.1016/j.resconrec.2019.104670
[6]	王贵玲, 杨轩, 马凌, 等. 地热能供热技术的应用现状及发展趋势[J]. 华电技术, 2021, 43(11):15-24.
	WANG Guiling, YANG Xuan, MA Ling, et al. Status quo and prospects of geothermal energy in heat supply[J]. Huadian Technology, 2021, 43(11):15-24.
[7]	ALLOUHI A. Techno-economic and environmental accounting analyses of an innovative power‑to‑heat concept based on solar PV systems and a geothermal heat pump[J]. Renewable Energy, 2022, 191: 649-661. doi: 10.1016/j.renene.2022.04.001
[8]	KIM H, JUNGHANS L. Economic feasibility of achieving net‑zero emission building (NZEB) by applying solar and geothermal energy sources to heat pump systems: A case in the United States residential sector[J]. Journal of Cleaner Production, 2023:137822.
[9]	FORGHANI A H, SOLGHAR A A, HAJABDOLLAHI H. Optimal design of a multi‑generation system based on solar and geothermal energy integrated with multi‑effect distillatory[J]. Applied Thermal Engineering, 2024, 236:121381. doi: 10.1016/j.applthermaleng.2023.121381
[10]	ASSAREH E, DEJDAR A, ERSHADI A, et al. Performance analysis of solar‑assisted‑geothermal combined cooling,heating, and power (CCHP) systems incorporated with a hydrogen generation subsystem[J]. Journal of Building Engineering, 2023, 65:105727. doi: 10.1016/j.jobe.2022.105727
[11]	LIU G K, JI D X, QIN Y Z. Geothermal‑solar energy system integrated with hydrogen production and utilization modules for power supply‑demand balancing[J]. Energy, 2023:128736.
[12]	NEVES R, CHO H, ZHANG J. Pairing geothermal technology and solar photovoltaics for net‑zero energy homes[J]. Renewable and Sustainable Energy Reviews, 2021, 140: 110749. doi: 10.1016/j.rser.2021.110749
[13]	中国石油新闻中心. 冀东油田绿色低碳转型纪实[EB/OL]. 北京:石油商报, 2022(2022-10-17)[2023-08-05].https://news.cnpc.com.cn/epaper/sysb/20221012/0155096004.htm.
[14]	宋超凡, 赵军, 尹洪梅, 等. 碳中和背景下油田区地热资源的低成本可持续利用[J]. 华电技术, 2021, 43(11):66-73.
	SONG Chaofan, ZHAO Jun, YIN Hongmei, et al. Low‑cost and sustainable utilization of geothermal resources in oilfields to achieve carbon neutrality[J]. Huadian Technology, 2021, 43(11):66-73.
[15]	李志强. 集中-分散太阳能供热水系统在多层住宅中的设计应用[J]. 福建建筑, 2013(1):111-114.
	LI Zhiqiang. On use of collectice-individual hot water supply system in multi‑storey residential design[J]. Fujian Architecture ＆ Construction, 2013(1):111-114.
[16]	史晨曦, 狄育慧, 蒋婧. 基于TRNSYS的高校浴室燃气锅炉+污水源热泵供热水耦合系统的优化分析[J]. 制冷与空调(四川), 2022, 36(5):726-732.
	SHI Chenxi, DI Yuhui, JIANG Jing. Optimization analysis of coupled heating and water system of gas boiler+sewage source heat pump in university bathroom based on TRNSYS[J]. Refrigeration and Air Conditioning (Sichuan), 2022, 36(5):726-732.
[17]	康一亭, 张兰兰, 范满, 等. 聚光型光伏系统光电耦合性能研究[J]. 太阳能学报, 2022, 43(8):33-40. doi: 10.19912/j.0254-0096.tynxb.2020-1332
	KANG Yiting, ZHANG Lanlan, FAN Man, et al. Study on photoelectric coupling performance of concentrating photovoltaic system[J]. Acta Energiae Solaris Sinica, 2022, 43(8):33-40. doi: 10.19912/j.0254-0096.tynxb.2020-1332
[18]	马一太, 代宝民. 空气源热泵热水机(器)的出水温度及能效标准讨论[J]. 制冷与空调, 2014, 14(8):123-127.
	MA Yitai, DAI Baomin. Discussion on outlet water temperature and energy efficiency Standard of air‑source heat pump water heater[J]. Refrigeration and Air Conditioning, 2014, 14(8):123-127.
[19]	中华人民共和国生态环境部. 关于做好2023—2025年发电行业企业温室气体排放报告管理有关工作的通知[EB/OL].(2023-02-07)[2023-08-05].https://www.mee.gov.cn/xxgk2018/xxgk/xxgk06/202302/t20230207_1015569.html.

负荷类型	流量/（m³·h^－1）	供水温度/℃	回水温度/℃	负荷/kW
掺水负荷	34.0	56	36	820
原油伴热负荷	307.3	40	36	1 410
采暖负荷	2.2	65	50	380
热水负荷	20.0	55		700

参数	数值
水源侧入口温度/℃	15
水源侧出口温度/℃	25
负荷侧入口温度/℃	20
热泵数量	100

参数	450 W组件数值	540 W组件数值
开路电压/V	44.0	49.2
短路电流/A	11.80	13.71
最大功率点电流/A	11.05	12.82
最大功率点电压/V	36.20	41.35
电流温度系数/(A·K^-1)	0.057	0.050
电压温度系数/(V·K^-1)	-0.286	-0.284
光电转换效率/%	17.8	17.8