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Energy-efficient cooling and heating solution for vertical farm

19 April 2024

Carrier’s AquaSnap 30RBP air-cooled scroll chillers, operating on lower global warming potential (GWP) refrigerant R-32, are providing high-efficiency cooling and heating for the world’s largest vertical farm in Lydney located in the Forest of Dean district in Gloucestershire, operated by Jones Food Company.

The vertical farm is expected to supply 1,000 tonnes of fresh produce a year to UK supermarkets. 

Contractor, Brooktherm Refrigeration was tasked with providing an HVAC solution capable of delivering a constant supply of efficient heating and cooling to the pressurised warehouse. It was essential that the chillers specified were compatible with Brooktherm’s control system. 

“One of the key challenges was the requirement to achieve four different temperature and humidity set points,” said Ben Doherty, Projects Coordinator at Brooktherm Refrigeration. “With the support of Carrier, we achieved them all.” 

Carrier recommended its compact AquaSnap 30RBP air-cooled scroll chillers with refrigerant R-32, which operate from -0oC up to +48oC, and come with variable-speed pumps to reduce pumping energy consumption by up to two-thirds. 

The Carrier chillers have a heat recovery system that enables waste heat to be captured and used for various heating applications on site, saving energy while maintaining optimum growing conditions. The cultivation warehouse is served by two HVAC plants, one on the north side and one on the south side, each equipped with two Carrier chillers, delivering a total of 2.2 megawatts of cooling and heating to the growing room.

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