Perpignan, France

Hospital air conditioning with district heating

In 2018, an energy optimisation programme was launched in a hospital in Perpignan. The aim was to increase the cooling capacity for the air conditioning of patient rooms and medical equipment, while respecting the environment.

The absorption chiller is connected to the Perpignan district heating network, which is supplied with heat from the Calce incineration plant. The network water at 90 °C is used as the heat source, at a more attractive rate in summer. BSB Europe selected a 400 kW single-effect chiller, which supplies chilled water at 5 °C even in extreme weather conditions.

• Unit type: single-effect hot water absorption chiller × 1 unit
• Cooling capacity: 400 kW (single effect)
• Heat source: district heating hot water (inlet 90 °C, outlet 80 °C)
• Cooling water: cooling tower (inlet 32 °C, outlet 37 °C in summer; inlet 20 °C, outlet 25 °C in winter)
• Chilled water: supply 7 °C, return 12 °C in summer; supply 5 °C, return 10 °C in winter
• Nominal COP: 0.75
• Installation: outdoors, in a metal container, with the BROAD hydraulic system
• Dimensions: 10,700 × 2,130 × 2,800 mm (L × W × H)
• Use: air conditioning of patient rooms and medical equipment
• Commissioning: 2019

A containerised solution

Placed outdoors in a metal casing, the unit is protected from the weather of southern France (rain, intense heat, wind). There was no need to build an additional machine room. With the BROAD hydraulic system (pumps, filters, valves), the customer also saved the investment and space needed to design and install this equipment. The Grundfos IE4 pumps meet the technical and safety requirements.