Page 37 - Climate Control News Magazine March 2021

Eco-friendly model can heat and cool
ENGIE REFRIGERATION WILL install a ther- meco2 high-temperature heat pump with a heating capacity of 100 kilowatts at the Lud- wigsburg District Office in Germany this month.
The model is especially eco-friendly, partly because it utilises the natural refrigerant CO2 and partly because it provides cold and heat simultaneously.
ENGIE Refrigeration has also conceptually overhauled the thermeco2: the heat pump now contains a filter dryer and more control op- tions. The administrative campus of the Lud- wigsburg District Office is home to almost all the important specialist departments in the Swabian district.
The District Office maintains its own in-house data centre so ambient temperature plays an es- sential role for a reliable operation. As the server racks generate a large amount of heat, the refrig-
eration supply must function smoothly around the clock.
In the summer of 2019, it became clear that ac- tion was necessary, according to Frank Glaser, key account manager for heating applications at ENGIE.
“The existing R22 refrigeration system was outdated and needed to be fully modernised,” he said.
“As the Ludwigsburg District Office attaches great importance to a sustainable refrigeration solution, it chose the thermeco2 high tempera- ture heat pump from ENGIE Refrigeration.”
The office is aiming to be climate-neutral by 2025. To achieve this, it wants to use a photovol- taic system and a combined heat and power sys- tem to produce and consume its own electricity.
“The office requires heat uncoupling in a chal- lenging temperature range: high outlet tempera-
Thermeco2 on the test rig.
tures of up to 90 degrees Celsius, and a low inlet temperature of 38 degrees Celsius,” Glaser said.
“Our thermeco2 high-temperature heat pump unfolds its full potential under these conditions, while alternative solutions could only achieve this with a great deal of technical and primary energy expenditure.”
The thermeco2 high-temperature heat pump will be installed this month and will then pro- vide the base load refrigeration for year-round server cooling. ✺
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Energy Cost Reduction & Monitoring
CLIMATE CONTROL NEWS MARCH 2021 37