Sure Chill Vaccine Refrigerator BLF100 DC
The Sure Chill Company
The Sure Chill Vaccine Refrigerator is a solar direct drive refrigerator that can store up to 99L of vaccines.
Sure Chill Refrigerators regulate internal temperature and protect vaccine vials from ice, to prevent freezing while keeping the vaccines at the appropriately cold temperature so they can be delivered at efficacy to children and adults throughout the necessary regions. The refrigerator works by surrounding the vaccine vials with cold water.
3275-3450 USD Interview with designer, August 2015
Goal 3: Good health and well-being
Community health workers in rural regions, aid workers on vaccination campaigns
Manufactured in the UK
Commercially available Interview with designer, August 2015
The time in hours without (solar) energy input during which all points in the vaccine compartment remain between +2°C and +10°C without (solar) energy input and at the maximum ambient temperature of the temperature zone for which the appliance is rated.
Sure Chill works on the principle that water is at its densest at 4°C. Water surrounds a Sure Chill refrigeration compartment. When power is supplied to the refrigerator, the water cools and ice is formed above the compartment leaving only water at 4°C and thus cooling the contents. When the power is switched off, the water warms and rises while the ice begins to melt. This keeps only water at a 4°C cooling the contents of the compartment keeping temperatures at 4 to 5°C.
The temperature variation within the cabinet is less than 1°C. The solar ‘direct drive’ model of the Sure Chill vaccine refrigerator doesn’t need a battery to maintain cooling performance overnight. In severe power outages, it can keep vaccines at safe temperatures for ~10 days or more at 32°C ambient, and even longer at lower ambient temperatures.
Dimensions: 89 cm x 76 cm x 185 cm
Power consumption: Solar array 200W to 370W depending on geographical location
Minimum rated ambient temperature: 5°C
Vaccine storage capacity (litres): 99L
Weight: 145 kg
For more information, consult the product manual.
Licensed partners provide local technicians in their respective countries Interview with designer, August 2015
Available from the manufacturer as needed Interview with designer, August 2015
2 year warranty available
The temperature variation within the cabinet limited at less than 1°C. The Sure Chill vaccine refrigerator can keep vaccines at safe temperatures for 10 days or more at 32°C ambient, and even longer at lower temperatures. Minimum rated ambient temperature: 5°C. Ice never forms on the cabinet walls
Independent study showed Sure Chill protects vaccines and provides consistent cooling. Rated Grade-A freeze protection by WHO.
Manufacturer and independently tested; WHO pre-qualified
Vaccines must be stored at the proper temperature to maintain effectiveness.
Can be powered by an electric outlet or solar panels.
Kartoglu, U., Milstien, J., Tools and approaches to ensure quality of vaccines throughout the cold chain. Expert Reviews: Vaccines [Internet] 2014 [cited 2015 May 29]; 13(7): 843–854.
Sirirat Techathawat et al., Exposure to heat and freezing in the vaccine cold chain in Thailand. Vaccine, Elsevier. [Internet] 2007 [cited 2015 May 29]; 25: 1328-1333.
S. Jones. Sure Chill Refrigeration Technology: Improving the Cold Chain in the Developing World. Global Humanitarian Technology Conference (GHTC), 2011 IEEE. [Internet] 2011 [cited 2015 May 29]: 205-207.
In-house testing conducted by The Sure Chill Company
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