摘要
本文采用直接接触式CO_2水合物蓄冷试验台,研究了初始充注压力为3.5~4.0 MPa工况下系统的蓄冷特性。分析实验结果发现:随着初始充注压力的升高,系统的蓄冷时间缩短;充注压力3.5~4.0 MPa下反应釜内的水合物生成量为1.14~3.03 kg,系统总蓄冷量为2,190.18~3,255.34 k J,在较高的充注压力下系统有着更好的蓄冷特性;在蓄冷过程中,潜热蓄冷量随着充注压力的增大而增大,但不同压力下显热蓄冷量的变化不大。
Under the initial charge pressure of 3.5-4.0 MPa in the direct-contact CO_2 hydrate cool storage test device,the cool storage characteristics were studied.Results showed that the cool storage time can be shortened as the charge pressure increases.At initial charge pressure of 3.5-4.0 MPa,the quantity of hydrate formation in the reaction kettle are 1.14-3.03 kg,and cool storage capacities are 2,190.18-3,255.34 k J,so the cool storage performance can be improved greatly as the charge pressure increases.During the cool storage process,the latent heat cool storage capacities can be improved with the initial charge pressure increases.However,the change of the sensible heat cool storage capacities is not evident under different initial charge pressures.
出处
《制冷技术》
2017年第6期6-10,共5页
Chinese Journal of Refrigeration Technology
基金
国家自然科学基金项目(No.50806050)
上海市教委科研创新项目(No.14YZ097)
关键词
二氧化碳
水合物
跨临界
蓄冷
直接接触式
Carbon dioxide
Hydrate
Trans-critical
Cool storage
Direct-contact
