Cooltherm has been shortlisted for two major awards in the forthcoming RAC Cooling Industry Awards 2017.
The project involved providing chillers to cool a new luxury apartment development sited across both sides of a road in Westminster, with stringent planning and noise restrictions. The project was originally designed to employ cooling towers however principle mechanical contractor Briggs and Foresterasked Cooltherm if an air-cooled solution could be developed which met the footprint, sound and performance criteria offered by a potential water-cooled solution.
It has been shortlisted for Environmental Collaboration of the year and Air Conditioning Innovation (Chillers and Data Centres) with the finalists being announced at the London Hilton on 27th September.
Cooltherm were set the challenge of producing an air-cooled 1.8mW water chiller emitting 51 dB(A) at 10 meters, and still achieved a total peek EER of 3.31 and a ESEER of 5.28.
Cooltherm and their manufacturing partner Geoclima set about designing a customised version of the Turbomiser™ chiller to meet the base design requirements, however it was clear that to comply with noise limitations, sound attenuation would need to be applied.
The problem with traditional chiller and attenuation design is that it can make the foot print grow in width and length, and can adversely affect the equipment’s efficiency and impede maintenance. These were problems that the sites limited plant spaces could not accommodate. Ideally the client was looking to decrease plant area so more apartments could be created within the buildings design to increase revenue. Cooltherm turned to acoustic partner Box Clever Engineering for assistance and inspiration.
Cooltherm and Box Clever Engineering, worked together with chiller producer Geoclima in Italy to develop a design whereby all the performance benefits of each highly-advanced component could be optimised to solve the challenge set.
Independent development tests on the pods proved a minimum of a 11dB(A) reduction was achieved, this combined with the other improvements in the design of the Turbomiser™ chiller was independently tested and verified that the 1.8mW chillers had a noise level of less than 51dB(A) at 10 meters.