Methods of Tetra-n-Butyl Ammonium Bromide Clathrate Hydrate Slurry Generation in Cold Storage Air-Conditioning

作者：Bai, Ziyu; Shi, Xinjie; Zhang, Peng^*

来源：Journal of Shanghai Jiaotong University, 2017, 51(7): 781-786.

DOI：10.16183/j.cnki.jsjtu.2017.07.003

• Application prospect
• Clathrate hydrate
• Coefficient of Performance
• Crystal layer
• Generation process
• Heterogeneous method
• Initial concentration
• Tetra-n-butyl ammonium bromides

Tetra-n-butyl ammonium bromide (TBAB) clathrate hydrate slurry (CHS) has shown a promising application prospect in cold storage air-conditioning. In the present study, TBAB CHS was generated from 20% (mass fraction) initial concentration aqueous solution in a cold storage air-conditioning. Three TBAB CHS storage methods, i.e., homogeneous, heterogeneous and heterogeneous with filter, and two methods of melting the crystal layer on the wall of the heat exchanger determined by fixed time and by flowrate were utilized to generate TBAB CHS. Temperature, flowrate, pressure drop, image of TBAB CHS and coefficient of performance were obtained during the generation processes. It was found that heterogeneous with filter can enhance the efficiency up to 14.3% and 9.8% compared with the homogeneous and heterogeneous methods, respectively.

• 出版日期2017
• 单位上海交通大学