基于正交试验法的血液红细胞冷库热性能优化研究OA

The red blood cell cold storage,as a critical storage device in the blood cold chain,needs to maintain an accurate and constant temperature to ensure blood safety.In this paper,based on the orthogonal test method,the orthogonal simulation study of two groups of mixed levels is carried out.First,the impact of geometric structure and equipment layout on the cold storage's thermal performance is analyzed(orthogonal group 1).Then,the influence mechanism of operational conditions on thermal performance is further explored by considering the geometric structure,equipment layout,and air supply conditions(orthogonal group 2).The results show that the optimal configuration of geometric structure and equipment layout adjusts according to the air supply conditions.The priority of factors affecting the thermal performance of the cold storage is specific surface area>internal heat source position>fan position>air supply temperature>air supply speed>variable cross-sectional ratio.After optimization,the average temperature of the cold storage decreases by 1.01℃,the temperature range reduces by 1.39℃,the temperature non-uniformity coefficient decreases by 57.14%,the velocity non-uniformity coefficient decreases by 16.22%,and energy consumption is reduced by 2.31%.This study identifies the key influencing factors and their optimization paths,providing a theoretical basis for the design and operation optimization of red blood cell cold storage.