Reduce Lab Infrastructure Cost with the Most Sustainable ULT Freezers in the Industry

by | Jun 27, 2018 | General Lab & Safety

Given the sizable power consumption of conventional, compressor-based ultra-low temperature (ULT) freezers and the importance of preserving precious biological specimens, it’s no surprise that research facilities and biorepositories have significant infrastructure requirements. Facility managers and architects have long wrestled with increasingly expensive and complex electrical and HVAC systems needed to support mission-critical ultra-low temperature storage systems in research facility design.

With considerably lower power consumption and heat rejection, flexible voltage requirements, reduced footprint, and increased overall system reliability, the use of Stirling Ultracold ULT freezers can simplify and reduce the need for electrical, back-up and HVAC infrastructure. This reduced infrastructure need is a benefit both in the laboratory design phase, as well as during ongoing operation.

Reduced Electrical Power Infrastructure

With significantly lower peak current requirements than compressor-based ultra-low freezers, the use of Stirling ULT freezers can reduce the electric power system and switchgear requirements in your facilities. Our freezers can also be powered by standard U.S. 110-volt outlets; evidence of our freezers’ low energy use. This all adds up to lower cost in the design, construction and operation of your research facilities.

Reduced Backup Power Requirements

For researchers, the threat of power failure and loss of priceless specimens is a nightmare scenario. While your lab’s infrastructure may have backup electric power capabilities, those systems are not designed to run indefinitely. Stirling’s low power consumption and peak current reduces your backup power requirements, allowing our freezers to run on backup power sources longer than traditional ULT systems. Cooling systems continuing operation during a power failure can be a critical factor in protecting years of research and investments.

Reduced Laboratory HVAC System Load

Conventional ultra-low freezers use a lot of energy to operate and all this energy is converted into heat―essentially a ULT freezer is a heater in the facility! Therefore, the more ULT freezers you have running in your research facility, the more heat that must be removed by your HVAC system. Stirling Ultracold ULT freezers produce less heat, making it much less likely that the environment around the freezers becomes uncomfortably hot, allowing greater flexibility in where they are placed.

To remove the heat that is produced by ULT freezers, electric power is required to run the air-conditioning systems. Based on ASHRAE guidelines, 1 kWh of electric power used by a freezer will require an additional 0.29 kWh of electric power for the HVAC system. Multiplied by 100s of ULTs operated in a research facility, this represents significant potential savings in ongoing energy use and cost, while also reducing the HVAC system capital cost for the facility.

Once you consider the fact that a Stirling Ultracold freezer requires less energy and produces less heat, you have a proven formula for improved lab infrastructure and lower cost.

Available on GSA through Government Scientific Source

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