HEAT TRANSFER IN COLD BOXES There are two keys to long cold life and efficient use of cold source in a cold box. 1.Restrict the flow of energy from outside the Cold Box to the Payload 2.Do not restrict the flow of energy from the Payload to the Cold Source Efficient Cold Life performance depends on 1.Thermal Conductivity, Thickness, Surface Area and Construction of the Insulation System. 2.Number ...

How do you transport blood safety Blood is familiar and unfamiliar to ordinary people. Blood occupies 7% of the body's weight. Although the proportion is not large, it is indispensable. It is responsible for transporting nutrients and oxygen, maintaining vital signs and resisting the immune function of foreign bacteria. Blood contains plasma and blood cells. Blood cells include red blood cells, wh...