A basic information of a constant temperature transportation transfer box and a cold storage Refrigerant.

1. The principle of passive cooling:

Put the pre-cooled ice gel pack with the product into the transportation transfer cooler box.

The temperature in the box is the result of the combined effect of the heat capacity of the liquid storage tank, the external environment temperature and the insulation performance of the box.

3．Types of insulation materials:

EPS (Expanded Polystyrence)

PUR (Polyurethane)

EPP (Expanded Polypropelene)

VIP (Vaccum Insulation Panels)

The heat transfer of thermal insulation materials mainly includes convection heat transfer, contact heat transfer and radiation heat transfer. As far as the current market is concerned, EPS materials are mostly used for thermal insulation materials. The advantage of EPS is its low price. The thermal insulation effect of PUR is better than that of EPS and EPP. At the same time, it has good chemical resistance. EPP also has very good chemical resistance, which is convenient for transportation, disinfection and cleaning. One of the important advantages of EPP is its light weight, saving freight costs during the transfer process, and easy handling. The thermal conductivity of VIP is 20 times lower than that of standard insulation panels such as EPS. Standard insulation: 0.030~0.040 W/mK, VIP: 0.002~0.008W/mK. (Please refer to the following two pictures for information)

4．The working procedure of the Ice Brick

4.1.Set the FREEZER at -15oC or lower.

4.2.Freeze the HTIce Bricks for 24 hrs. minimum. The Bricks must be completely solid beore use.

4.3.Clean the inner and outer surfaces of the Cold Chain Box by wiping with a damp cloth, making sure that the lid sealing surfaces are clean and undamaged.

4.4.Open the lid, and put the liner in place.

4.5.Remove the HTIce Bricks from the freezer. Condition by placing them flat in a well ventilated position at room temperature until the surface temperature rises to above

0^oC (dew will form on the surface of the Bricks at this point).

4.6.Place the HTIce Bricks in the liner pockets;

4.7.Close the lid, and wait for the temperature of the Cold Space to reduce to about 3 -5oC.

4.8.Open the lid and transfer the Vaccine or other product directly from the refrigerator to the Cold Space.

4.9 Place the thermometer sensor at top centre of the payload, at least 25 mm from the top HTIce Brick, if fitted

5.0 Check that the closing surfaces are clean and free of loose objects. Wipe the sealing surfaces carefully. Close and secure the lid.

5．Basic principles of transportation system solutions

Cold Chain Transportation System Solutions. The company will customize the individual needs of customers according to the characteristics of the cooler box and the ice brick, solve the problems existing in the customer's transportation packaging, and help customers save the cost of packaging and transportation. The core is: the insulated box should be light but strong and have low thermal conductivity, and the  ice gel pack should surround the product to protect high-value products and maintain a stable temperature in the box.