Broomfield_College_ehpa_award_UK.jpg

Challenge

As part of UK Public Sector Decarbonisation Scheme (PSDS), Derby College was awarded funds to carry out heat decarbonisation and energy efficiency measures including the replacement of the existing gas-fired boilers with heat pumps at Broomfield Hall Campus.

Solution

Trane UK supplied a high efficiency thermal system comprising 1 x Conquest CXAX air-cooled Heat pump and 1 x City RTSF water-to-water Heat pump.

This combination of Air Sourced and Water Sourced Heat Pumps installed in cascade configuration provides a renewable energy alternative to traditional gas fired boilers:

• 600kW of Heating
• Up to 80°C of leaving water temperature
• Low GWP refrigerant with low impact on the environment (R454B and R1234Ze)

Results

This project represents a best practice example of Trane thermal systems that reduce operating costs and CO2 emissions while improving indoor air quality. The low-carbon heating solution installed at Broomfield Hall fully replaces the existing gas boilers. It will help Derby college achieve:
• 790,000 kWh annual energy savings
• 160 tons in CO2 annual emission reduction
• Total Efficiency Ratio (TER) improved by 400%.


The project recieved two recognitions:
• Highlighted in the UK government's decarbonization summary report of January 2022
• People's Choice Award at EHPA 2022 Forum.




Related stories

Project highlights

Location: United Kingdom

Market application: Comfort heating

Customer need:

Products installed:
• 1 x Conquest CXAX air-cooled Heat pump
• 1 x City RTSF water-to-water Heat pump

Heating Capacity: 600 kW

Featured products

Product name: Conquest CXAX Air-to-Water Heat Pump

At a glance:

  • Compact design: reduced footprint and low-profile design
  • Reversible operation: cooling or heating
  • Optimized for R454B low GWP refrigerant and high seasonal efficiency

Product page

Featured products

City™ RTSF Water-to-Water Heat Pump

Product name: City™ RTSF Water-to-Water Heat Pump

At a glance:

  • 99.5% reliability rate with screw compressor technology and Adaptive Frequency™ Drive as standard
  • Fully optimized for HFO R1234ze (<1 GWP)
  • Minimized refrigerant charge with stainless steel plate heat exchangers

Product page