Heat pumps Business centre
As part of its commitment to tackling global climate change, Sunderland Council is now benefiting from reduced carbon emissions and energy consumption thanks to a new Hamworthy Tyneham heat pump system, set up in a hybrid installation, at its offices in Stansfield Business Centre
S
tansfield Business Centre is located to the south of the River Wear within the Hendon area of Sunderland in a predominantly
industrial and commercial area. Built in 2002, the building was originally fitted with two gas-fired boilers and pressurisation units and two circulating pumps which had reached the end of life and needed to be replaced.
Reducing carbon emissions
Alan Cowgill, mechanical building services engineer at Sunderland City Council, who is part of a team for
Right: New Stratton MK3
reducing energy use across council run buildings in Sunderland was tasked with finding a system that would meet year-round heating demands whilst reducing operational environmental impact. He says: “Sunderland City Council is committed to
playing its part in tackling the global climate change emergency and has taken steps to reduce its carbon emissions from operational activities so as to be carbon neutral by 2030. As part of this commitment, when the existing
LTHW heating system at Stansfield Business Centre, which was served by two wall-hung gas boilers, was due for replacement, Sunderland City Council saw this as an excellent opportunity to install a hybrid system that would help to both reduce carbon emissions and save on energy,” explains Alan. Following an evaluation of the building’s heating
requirements, Mr Cowgill found: “As the existing gas boilers were operating at elevated temperatures and the heating system was designed to operate with high-grade heat at peak loads at Stansfield Business Centre, air source heat pump (ASHP) low grade heat was deemed unsuitable to replace the current system alone. To meet the requirement, it was established that
a hybrid system was therefore required with the ASHP being the lead source of heating, and a gas boiler providing a top-up when the temperatures were required.”
The solution Hamworthy buffer cylinder
Combining traditional heating systems such as gas boilers with low and zero carbon technologies – such as heat pumps – is an alternative that helps
18 April 2024
slashes emissions with heat pump system
www.heatingandventilating.net
reduce the carbon impact of the heat generators used in a building. To accurately meet the heating demands of the building, the new Hamworthy Heating system at Sunderland Business Centre consists of a 32kW Tyneham air source monobloc heat pump which is connected to a 500L buffer cylinder. Offering superb operational reliability, excellent quality, and outstanding performance, Tyneham heat pumps feature a co-efficiency of performance (COP) rating of up to 4.85, to provide efficient, low carbon heating.
Serving as the primary heat source within the new hybrid set up, the Tyneham heat pump efficiently increases the heat up to 55˚C to a buffer tank. As and when additional temperature is required, the system, which also includes a Stratton mk3 condensing wall-hung boiler as a secondary heat source, will switch over to the boiler to meet the required load. Not only does this ensure year-round reliability, as the boiler supports the heat pump, but it will also
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