GO强化水冷压缩式CO_(2)水合物蓄冷的实验研究  

Experimental study of enhancement of CO_(2)hydrate cool storage in water-cooled compression system by GO

作　　者：谢梅萍 谢应明[1,2] 闫坤 段汉坤 杨亮 刘道平[1,2] 豆斌林 XIE Mei-ping;XIE Ying-ming;YAN Kun;DUAN Han-kun;YANG Liang;LIU Dao-ping;DOU Bin-lin(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,Shanghai 200093,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《化学工程》2021年第11期15-19,30,共6页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(50806050)。

摘　　要：采用水冷压缩式CO_(2)水合物蓄冷实验台,研究了在不同初始充注压力和不同质量浓度的氧化石墨烯(GO)悬浮液下,CO_(2)水合物的蓄冷特性,通过实验数据计算蓄冷量和蓄冷速率。结果表明:与纯水体系相比,含有不同质量浓度的GO悬浮液中,系统的预冷时间和蓄冷时间均有不同程度的缩短。水合物生成质量、蓄冷速率和蓄冷量均有不同程度的提高,且随着充注压力的增加,系统的蓄冷性能也不断提高。当充注压力为4.0MPa,GO悬浮液质量浓度为60mg/L时,蓄冷特性最好:蓄冷时间最短(11.3 min),平均蓄冷速率最高(5.96 kW),水合物生成质量最多(5.01 kg),总蓄冷量达到最大值(4041.47 kJ)。研究表明:GO对于本系统的CO_(2)水合物蓄冷性能具有明显的强化效果。The characteristics of cold storage of CO_(2)hydrate with different initial charge pressures and mass concentrations of Graphene oxide(GO)suspension were investigated in water-cooled compressive CO_(2)hydrate cool storage test bench.Cold storage capacity and cold storage velocity were calculated based on the experimental data.The results showed that,compared with the pure water system,the pre-cooling time and cold storage time of the system were shortened in GO suspension.The mass of hydrate formation,the rate of coldstorage and the capacity of coldstorage increased more or less,and with the increase of charging pressure,the cold storage characteristics of the system also improved accordingly.When the charging pressure was 4.0 MPa and the GO suspension mass concentration was 60 mg/L,the cold storage characteristics were the best:the cold storage time was the shortest(11.3 min),the average cold storage rate was the highest(5.96 kW),the hydrate formation mass was the largest(5.01 kg),and the total cold storage capacity reached the maximum(4041.47 kJ).It showed that GO had obvious enhancement effect on the cold storage performance of CO_(2)hydrate in this system.

关 键 词：水冷压缩式 蓄冷系统 蓄冷特性 CO_(2)水合物 氧化石墨烯 

分 类 号：TB61[一般工业技术—制冷工程] TK02[动力工程及工程热物理]