耦合液化天然气压力能的CCHP系统构建及优化

doi:10.12068/j.issn.1005-3026.2022.06.010

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (6): 827-834.DOI: 10.12068/j.issn.1005-3026.2022.06.010

耦合液化天然气压力能的CCHP系统构建及优化

冯明杰¹，王登亮¹，赵梅玉²，周乐¹

(1. 东北大学冶金学院，辽宁沈阳110819; 2. 北京精仪天和智能装备有限公司技术中心，北京100079)

修回日期:2021-07-25 接受日期:2021-07-25 发布日期:2022-07-01
通讯作者: 冯明杰
作者简介:冯明杰(1971－)，男，河南禹州人，东北大学副教授.
基金资助:
国家重点研发计划项目(2017YFA0700302).

Construction and Optimization of CCHP System Coupled with LNG Pressure Energy

FENG Ming-jie¹， WANG Deng-liang¹， ZHAO Mei-yu²， ZHOU Le¹

1. School of Metallurgy， Northeastern University， Shenyang 110819， China; 2. Technology Center， Beijing Jingyi Tianhe Intelligent Equipment Co.， Ltd， Beijing 100079， China.

Revised:2021-07-25 Accepted:2021-07-25 Published:2022-07-01
Contact: WANG Deng-liang
About author:-
Supported by:
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摘要/Abstract

摘要： 提出了一种耦合液化天然气压力能的新型冷-热-电联供(CCHP，combined cooling，heating and power)系统.以西安某工业园为研究对象，采用单纯形算法，以经济性最优为目标函数对系统的运行参数进行了优化，分析了电上网政策对设备出力和系统性能的影响，并以能效、火用效和单位产能CO₂排放量作为评价指标，对该系统进行了综合评价.结果表明，与常规CCHP系统相比，该新型系统的年费用和单位产能CO₂排放量可分别减少2.9×10⁶元和29.82g/(kW·h)，一次能源利用率和火用效率可分别提高4.05%和0.44%.

关键词: 压力能;冷-热-电联供;运行策略;年总费用

Abstract: A novel type of combined cooling，heating and power(CCHP)system coupled with LNG pressure energy has been proposed. Taking an industrial park in Xi ′an as the research object， an optimization model with the objective of economic optimization was established by using simplex algorithm. In addition， some parameters， such as energy efficiency， exergy efficiency and CO₂ emission per unit output value were taken as evaluation indexes to comprehensively evaluate the new system， and the influence of feed-in tariff on the output of various equipment and system performance was analyzed. The performance of the novel CCHP system was compared with that of conventional CCHP system， and the CO₂ emission per unit output value and annual cost of the system were reduced by 29.82g/(kW·h) and 2.9×10⁶ CNY， respectively. Primary energy utilization and exergy efficiency increased by 4.05% and 0.44%， respectively.

Key words: pressure energy; CCHP(combined cooling，heating and power); operation strategy; total annual expenses

中图分类号:

TK123

冯明杰，王登亮，赵梅玉，周乐. 耦合液化天然气压力能的CCHP系统构建及优化[J]. 东北大学学报（自然科学版）, 2022, 43(6): 827-834.

FENG Ming-jie， WANG Deng-liang， ZHAO Mei-yu， ZHOU Le. Construction and Optimization of CCHP System Coupled with LNG Pressure Energy[J]. Journal of Northeastern University(Natural Science), 2022, 43(6): 827-834.

参考文献

[1]Zhao Z L，Zou B.The optimal operation strategy and simulation for CCHP system［J］.IOP Conference Series:Earth and Environmental Science，2018，168(1):1-13.
[2]Gu H，Cui X B，Zhu H X，et al.Multi-objective optimization analysis on gas-steam combined cycle system with exergy theory［J］.Journal of Cleaner Production，2021，278(1):1-14.
[3]Zheng C Y，Wu J Y，Zhai X Q.A novel operation strategy for CCHP systems based on minimum distance［J］.Applied Energy，2014，128:325-335.
[4]王志光，黄志鹏，王玉璋，等.冷热电联供系统微燃机机组配置和运行优化［J］.动力工程学报，2019，39(4):338-344.(Wang Zhi-guang，Huang Zhi-peng，Wang Yu-zhang，et al.Configuration and operation optimization of the micro gas turbine units in a CCHP system［J］.Journal of Chinese Society of Power Engineering，2019，39(4):338-344.)
[5]Mago P J，Chamra L M.Analysis and optimization of CCHP systems based on energy，economical，and environmental considerations［J］.Energy & Buildings，2009，41(10):1099-1106.
[6]Yang G，Zhai X Q.Optimization and performance analysis of solar hybrid CCHP systems under different operation strategies［J］.Applied Thermal Engineering，2018，133:327-340.
[7]Wang X S，Yang C，Huang M M，et al.Multi-objective optimization of a gas turbine-based CCHP combined with solar and compressed air energy storage system［J］.Energy Conversion and Management，2018，164:93-101.
[8]Shayan S，Pouria A.Thermo-economic optimization of a high-performance CCHP system integrated with compressed air energy storage(CAES)and carbon dioxide ejector cooling system［J］.Sustainable Energy Technologies and Assessments，2021，45(6):101-112.
[9]Le S，Lee J Y，Chen C L.Waste cold energy recovery from liquefied natural gas(LNG)regasification including pressure and thermal energy［J］.Energy，2017，152:770-787.
[10]Yao S G，Shen X Y，Yang Z M，et al.Design and optimization of LNG vaporization cold energy comprehensive utilization system based on a novel intermediate fluid vaporizer［J］.Applied Thermal Engineering，2021，190:116785.
[11]Mehrpooya M，Golestani B，Mousavian S.Novel cryogenic argon recovery from the air separation unit integrated with LNG regasification and CO₂ transcritical power cycle［J］.Sustainable Energy Technologies and Assessments，2020，40(3):100767.
[12]Riaz A，Qyyum M A，Min S W，et al.Performance improvement potential of harnessing LNG regasification for hydrogen liquefaction process:energy and exergy perspectives［J］.Applied Energy，2021，301:117471.
[13]Li Y，Wu D W，Wetenhall B.Pressure drop study on an organic rankine system utilizing LNG cryogenic energy and waste heat recovery［J］.Energy Procedia，2019，158:718-725.
[14]Arabkoohsar A，Farzaneh-Gord M，Deymi-Dashtebayaz M，et al.A new design for natural gas pressure reduction points by employing a turbo expander and a solar heating set［J］.Renewable Energy，2015，81:239-250.
[15]Qi M，Park J W，Kim J D，et al.Advanced integration of LNG regasification power plant with liquid air energy storage:enhancements in flexibility，safety，and power generation［J］.Applied Energy，2020，269:115049.
[16]Sun Z X，Xu F Q，Wang S J，et al.Comparative study of Rankine cycle configurations utilizing LNG cold energy under different NG distribution pressures［J］.Energy，2017，139:380-393.
[17]王江江，杨颖.基于太阳能利用的天然气冷热电联供系统热力性能研究［J］.热能动力工程，2017，32(5):111-117.(Wang Jiang-jiang，Yang Ying.Thermodynamic performance analysis of acombined cooling heating and power system driven by natural gas and based on solar energy［J］.Journal of Engineering for Thermal Energy and Power，2017，32(5):111-117.)
[18]Kang S S，Li H Q，Liu L F，et al.Exergy analysis of a novel CHP-GSHP coupling system［J］.Applied Thermal Engineering，2016，93(25):308-314.

耦合液化天然气压力能的CCHP系统构建及优化

Construction and Optimization of CCHP System Coupled with LNG Pressure Energy

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