CAJ | 학술논문

针对密闭空间内无源控温问题，通过数学建模和实验验证对模块式冰蓄冷控温传热过程及热力学特性展开研究。从冰蓄冷相变制冷理论入手，建立了蓄冷模块相变制冷数学模型，得到了蓄冷模块壁面综合传热系数、有效制冷时间以及制冷率的数学表达式，通过实验验证该模型的有效制冷时间理论值和实验值相对误差在5%以内。绘制了环境温度和相对湿度对蓄冷模块壁面综合传热系数、有效制冷时间及制冷率的影响关系曲线，表明环境温湿度与壁面综合传热系数和制冷率呈正比例变化关系；与有效制冷时间呈反比例变化关系。建立了环境温湿度相关修正系数方程，并运用该方程对蓄冷模块制冷率和有效制冷时间的数学模型进行了修正。研究结果为密闭环境中无源相变制冷的应用提供了技术依据。
침대밀폐공간내무원공온문제，통과수학건모화실험험증대모괴식빙축랭공온전열과정급열역학특성전개연구。종빙축랭상변제랭이론입수，건립료축랭모괴상변제랭수학모형，득도료축랭모괴벽면종합전열계수、유효제랭시간이급제랭솔적수학표체식，통과실험험증해모형적유효제랭시간이론치화실험치상대오차재5%이내。회제료배경온도화상대습도대축랭모괴벽면종합전열계수、유효제랭시간급제랭솔적영향관계곡선，표명배경온습도여벽면종합전열계수화제랭솔정정비례변화관계；여유효제랭시간정반비례변화관계。건립료배경온습도상관수정계수방정，병운용해방정대축랭모괴제랭솔화유효제랭시간적수학모형진행료수정。연구결과위밀폐배경중무원상변제랭적응용제공료기술의거。
Aiming at the passive temperature control problem in confined spaces, we investigate the heat transfer and thermodynamic characteristics of module type ice temperature control process with mathematical models and experiments. A model for phase transition refrigeration by cool storage module is established, and with the mathematical expression for wall heat transfer coefficient, effective cooling time and cooling rate are derived. The relative error between the theoretical effective cooling time and experimental one is less than 5%. The results indicate that the wall heat transfer coefficient and cooling rate are proportional to environment temperature and relative moisture, and inversely proportional to cooling time. The correction factor equation for environment temperature and moisture is established and utilized for revising the mathematical models of storage module cooling rate and effective cooling time. These results provide important reference to the application of passive phase-transition refrigeration in confined space.