Recommendations for energy efficient flammable-material approved refrigerators and freezers?
Christina Greever-Wilson
Hello Green Labs Community –
I know some of you run green labs programs that provide freezers on wheels for labs to do sample cleanouts, defrosts, and as back-ups in case of failures. Do any of you have recommendations of energy efficient -20°C freezers or 4°C refrigerators rated for flammable material storage? I’d be interested to hear what any of you have purchased in recent years and if these units are working well for you.
A situation has been brought to my attention where a lab replaced a -20°C flammable-rated freezer for the TSX2320HA model (EnergyStar & ACT certified). They measured the energy consumption of their old freezer in comparison to the new TSX2320HA (4.3 kwh/day), and found out that the old freezer consumed less energy (2.7 kW/day). The team is looking for more energy efficient options before replacing any more -20°C freezers.
- TSX2320HA - https://www.fishersci.com/shop/products/tsx-series-high-performance-flammable-material-storage-20-c-manual-defrost-freezers/TSX2320HA?searchHijack=true&searchTerm=tsx-series-high-performance-flammable-material-storage-20-c-manual-defrost-freezers&searchType=Rapid&matchedCatNo=TSX2320HA
- ACT Label for this freezer - https://actdatabase.mygreenlab.org/products/6b10ff62-8a4f-4484-a59e-b92241d7eb4f
ADDITIONAL FREEZER MEASUREMENT NOTES:
- Old freezer: 18 cuft (15 + 3 in door). Measured full.
- New freezer in 129: Thermo Scientific TSX series; model TSX2320HA; 20 cuft (no storage in door). Measured empty.
I am asking some follow up questions about the metering equipment used and a suggestion to meter the new freezer again once it is fuller, since units are usually more energy efficient once they have some thermal mass inside. But if anyone has any recommendations, I’m all ears and would greatly appreciate it! Many thanks for reading!
Warm regards,
Christina
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Christina Greever-Wilson Senior Programs Manager (she/her/hers)
Cell: +1.408.204.6066 | Base: Salt Lake City, UT, USA Web: mygreenlab.org | Email: chri...@mygreenlab.org |
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The 2024 Freezer Challenge has begun! |
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Star Scott
This is really interesting! How bizarre the new unit used more energy than the old. Intrinsically safe freezers are different from standard freezers in that the motor and other potential sparking hazards are all on the OUTSIDE, so as to prevent flammable vapors stored inside from igniting.
I think you’re on the right path in questioning the metering process. Are they comparing apples to apples? Also, why did they replace the original freezer to start with if it was functional and only using 2.7 kWh/day? What was the brand/model of the original--If they advertise a lower energy consumption, it might be a good idea to suggest they pursue ACT/Energy Star.
UGA has quite a few Intrinsically Safe (or Flammables) freezers, though we haven’t talked about energy efficiency much with these other than to encourage clean outs, consolidations and sharing. Most commonly, these units have very few items in them and the bulk of materials is stored in a standard unit sitting next to it.
Interesting riddle you’ve presented, Christina! Please keep us posted on what you find.
From: 'Christina Greever-Wilson' via Green Labs Planning
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Sent: Monday, May 20, 2024 1:56 PM
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Cc: Kathryn Ann Ramirez Aguilar <kathryn...@colorado.edu>; Leoncio Lagarde <Leoncio...@colorado.edu>; Yazbek, Lindsey <lindsey...@austin.utexas.edu>; Christina Greever-Wilson <chri...@mygreenlab.org>
Subject: Recommendations for energy efficient flammable-material approved refrigerators and freezers?
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Christina Greever-Wilson
Thank you Star & Ellen for your replies and interest in this topic too!
If anyone has any insight into energy efficient flammables-safe freezers, I’d love to hear from you!
To view this discussion on the web visit https://groups.google.com/d/msgid/green-labs-planning/BN0PR02MB79528CE527B4E1A3981B7281CCE92%40BN0PR02MB7952.namprd02.prod.outlook.com.
Barry Reid
On 30 May 2024, at 17:41, 'Christina Greever-Wilson' via Green Labs Planning <green-lab...@googlegroups.com> wrote:
Thank you Star & Ellen for your replies and interest in this topic too!
If anyone has any insight into energy efficient flammables-safe freezers, I’d love to hear from you!
Warm regards,
Christina
Christina Greever-Wilson
Senior Programs Manager (she/her/hers)
Cell: +1.408.204.6066 | Base: Salt Lake City, UT, USA
Web: mygreenlab.org | Email: chri...@mygreenlab.org
The 2024 Freezer Challenge has begun!
Warm regards,
Christina
The 2024 Freezer Challenge has begun!
Follow us!
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