Williams Refrigeration is providing refrigeration for a £10 million central production unit that will prepare thousands of meals per day for five hospitals that make up the Sheffield Teaching Hospitals group.
The CPU kitchen is based at the Northern General Hospital, and will house the Williams refrigeration and a suite of cold rooms.
Merritt-Harrison Catering Consultancy is the lead consultant for the installation. Henry Boot Construction is the main contractor.
As well as installing coldrooms, blast chillers, blast freezers and refrigerated preparation rooms, Williams supplied insulated panels that were used to divide up the CPU, creating hygiene stations, ambient stores and pan wash areas.
The CPU has been designed to work ergonomical – with, for example, the salad coldroom leading into the salad wash room which leads into the salad and sandwich prep room.
It also features a pioneering energy-saving system that recycles waste heat from the refrigeration and uses it to heat up the CPU’s hot water supply.
“We completely re-designed the post-cooking area to give us a slicker, more efficient operation, ultimately capable of servicing the needs of all five hospitals,” said Laurence Fowles, senior project manager.
All the Williams refrigeration supplied to STH was developed under the company’s Greenlogic initiative, which aims to minimise energy consumption.
One of the most innovative sustainable features of the project is the heat exchange system that recycles waste heat from the refrigeration and uses is to pre-heat the CPU’s incoming hot water supply.
As well as saving energy, the process should lengthen the life of the refrigeration. This is because, in passing through the heat exchanger, the refrigerant gas loses heat, so the refrigeration system doesn’t have to work as hard to cool it down.