COLD STORES FANS Meat processing plant
Equipment Application
R-455A charge Cooling capacity Compressor brand
Evaporation/condensation temperatures (°C) Make and type of evaporator/condenser Other equipment
2 condensing units Greenfrío model RXM-35 ES
Robotised warehouse at +1 / +2 ºC for packaged meat products 70 kg
110.2 kW Copeland -6 /+45
Cold storage warehouse for fruit
Three direct expansion systems Fruit storage room 65 kg / unit 55 kW / unit Copeland -2 /+ 45
Greenfrío cubic evaporators, Climetal micro-channel condensers Greenfrío evaporator, Güntner condenser Ako 57624 leak detector, Emerson regulators
Emerson electronic expansion valves, Ako control and leak detection systems, Danfoss valves and fi ttings
the tools used by installers can also be used with A2Ls. Finally, thanks to their classifi cation as slightly fl ammable substances, they are a safe choice for most refrigeration applications and are exempt from the Spanish greenhouse gas tax”. At the end of 2022, a meat products company in Segovia, a Spanish city known worldwide for its roast suckling pig, was looking to expand its temperature-controlled warehouse (+1 /+2°C). It was looking for innovation to improve the process, effi ciency and automatic warehousing, which would enable it to better control stocks, manage orders and launch new pre- packed products. Greenfrío manufactured two condensing units from its RX
range, fi tted with micro-channel exchangers, Stream Digital Copeland compressors, EC fans, fl oating HP condensing, electronic expansion valves to feed the evaporators, and a hot gas defrosting system. 70 kg of R-455A were charged, providing 110.2 kW of
refrigeration capacity at a speed of -6°C / +45°C for the new 3,495 m³ robotised chamber.
In 2020, installer Tecnosol, based in Murcia, a region renowned for its fruit and vegetable growing, approached Greenfrío to build a new 3,200 m3
cold store to store 300 tonnes of grapefruit
and oranges, one of the fi rst of its size in the region. The refrigeration equipment had to meet the user’s
requirements in terms of respect for the environment and energy effi ciency, and this was perfectly achieved by the Tecnosol / Greenfrío / Climalife alliance with the choice, among others, of R-455A. Thanks to this new installation, the customer has obtained the distinctive CO2
emissions reduction label for his company.
The installation comprises three direct-expansion systems with Copeland piston compressors. Each system is charged with 65 kg of R-455A for a total refrigeration capacity of 165 kW at -2 °C / +45 °C.
“Everyone involved is satisfi ed with the installation, because the performance is good, the environmental impact is low and the installation is tax-exempt,” says Pedro López, industrial technical engineer at Tecnosol.
HFOs or HFO/ HFC blends off er better overall
performance and greater effi ciency than most conventional fl uids or so-called “natural” refrigerants, and they also off er a long- term solution thanks to their GWP of less than 150.
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www.acr-news.com • July 2024 21
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