UK: Klima-Therm and Gree have won a prestigious international award for the world’s first photo-voltaic-powered centrifugal chiller.
The International Achievement of the Year Award 2015 was presented to Klima-Therm’s Roberto Mallozzi and Gree’s Sam Chen at a glittering awards ceremony held at The Hilton on London’s Park Lane, at the recent Cooling Industry Awards.
Harnessing light to power air conditioning is not new. However, the judges said the PV-powered centrifugal chiller represented a breakthrough in terms of the degree of integration required between the PV system and the chiller / heat pump.
The team had to overcome significant technical challenges that have prevented widespread adoption of large PV-based chillers in the past. The machine consists of three main components: the photovoltaic system, an inverter-driven centrifugal chiller, and an integrated power control system.
Crucially, DC power generated by the PV is used directly to drive the chiller, under the management of an on-board power control system. This direct PV power approach increases efficiency by between 6-8 per cent, compared with a conventional grid-connected PV generation plant and air conditioning system.
Roberto Mallozzi said: “It opens the way for the use of PV-powered air conditioning as a mainstream technology. With cooling capacity measured in MW rather than kW, it brings solar-energy powered air conditioning within reach for large or multi-storey buildings with higher cooling demands.
“What is particularly exciting is that it makes possible adoption of PV-powered systems in relatively high northern latitudes, such as the UK.”
He added: “When you consider the number of major buildings planned for construction in London alone over the next five years, not to mention the replacement market for aging centrifugal chillers installed in the Seventies and Eighties, it is not hard to appreciate the enormous potential.
“As part of our armoury of renewable energy solutions, PV-based chillers offer an exceptional opportunity to reduce the industry’s energy use, minimise carbon emissions and dramatically cut running costs for end users.”
For more details, contact: Tim Mitchell, Klima-Therm, email firstname.lastname@example.org, tel 07967 030737.