CAJ | 학술논문

综述了国内外在 CO2水合物浆的流动和传热特性方面的最新研究进展。在流动特性部分，介绍了流体的五大类型（牛顿流体、假塑性流体、膨胀性流体、宾翰流体和赫-巴流体）以及CO2水合物浆的表观黏度计算公式，研究表明 CO2水合物浆是非牛顿流体，表观黏度较小，因而具有优秀的流动性能；在传热特性部分，介绍了水合物浆在板式换热器中的总体换热系数计算方法，研究表明 CO2水合物浆的对流换热系数高达3658 W/(m2·K)，因此有优秀的传热性能，而且传热性能会受到晶体直径和分布规律、流速、固体含量和管道尺寸等因素的影响。综上所述，CO2水合物浆具有良好的流动和传热特性，在空调领域有着广阔的应用前景。最后简要展望了今后的研究重点。
종술료국내외재 CO2수합물장적류동화전열특성방면적최신연구진전。재류동특성부분，개소료류체적오대류형（우돈류체、가소성류체、팽창성류체、빈한류체화혁-파류체）이급CO2수합물장적표관점도계산공식，연구표명 CO2수합물장시비우돈류체，표관점도교소，인이구유우수적류동성능；재전열특성부분，개소료수합물장재판식환열기중적총체환열계수계산방법，연구표명 CO2수합물장적대류환열계수고체3658 W/(m2·K)，인차유우수적전열성능，이차전열성능회수도정체직경화분포규률、류속、고체함량화관도척촌등인소적영향。종상소술，CO2수합물장구유량호적류동화전열특성，재공조영역유착엄활적응용전경。최후간요전망료금후적연구중점。
The recent development of flow and heat transfer research of CO2 hydrate slurry was reviewed as a secondary refrigerant. In the aspect of flow research, five flow patterns(Newtonian flow, Pseudo-plastic flow, Dilatant flow, Bingham plastic flow and Herschel-Bulkley flow) were introduced. It shows that CO2 hydrate slurry is a kind of non-Newtonian liquid with small apparent viscosity indicating excellent flow properties. With regard to heat transfer aspect, the calculation method of hydrate slurry overall heat transfer coefficient in the plate heat exchanger was presented, and CO2 hydrate slurry has excellent heat transfer properties with a convective heat transfer coefficient of 3658W/(m2·K). Moreover, heat transfer properties can be affected by crystal diameter and distribution, flow velocity, solid content and tube dimensions. In conclusion, CO2 hydrate slurry has good prospects in air conditioning application with good flow and heat transfer properties. Finally, the future research priorities on CO2 hydrate slurry were discussed and summarized.