28 Coolers and Condensers
Heat recovery systems offer major benefits
There are four key benefits to considering heat recovery systems, according to Kevin Whyte, a director at ICS Cool Energy. Firstly, to improve a chiller’s total energy efficiency ratio; secondly to use chiller waste heat; thirdly to reduce heating costs; and, finally, to cut carbon emissions.
HEAT recovery in chillers offers an energy efficient solution that can be used to improve green credentials. Heat recovery allows a chiller to operate at high efficiencies, while collecting and re-using its waste heat to heat a process, providing heat for central heating or even hot water supply.
Heat recovery chillers available on the market comply with current refrigerant legislation and are often explored by sites looking to comply with the R22 phase out, while also achieving further enhanced savings with heat recovery functionality, leaving a much reduced carbon footprint. The Carbon Trust says that ‘the application of Heat Recovery techniques can significantly reduce energy consumption, running costs, and carbon emissions.’
A standard cooling system provides a building or process with cooled water and transfers waste heat energy into the atmosphere. With heat recovery chiller technology, a desuperheater within the chiller circuit, transfers a percentage of the heat load (up to 100%) and diverts it to a secondary circuit used for heating or hot water.
In order to use heat recovery effectively, waste heat is best used to improve an existing heating process such as pre- heating for a process boiler or HVAC requirement, as less heat would be wasted and maximum savings could be achieved. Not only does heat recovery technology utilise waste heat to minimise heating costs and carbon emissions, it is also a great alternative for replacing harmful HCFC refrigerants such as R22. With less than a year to go until R22 is no longer serviceable, it is important that companies begin to review the systems they have in place now before it is too late.
Case study
Based in Leicestershire, a major purveyor of sandwiches to some of the UK’s leading retailers, cafes, petrol forecourts and franchise partnerships operates a wide variety of processes in a bid to keep on top of its ever-expanding and diversifying product lines.
ICS Cool Energy has recently supplied a full turnkey package to enhance the firm’s
ACR News March 2014
manufacturing ability in a sustainable and energy efficient way, using heat recovery technology.
The company supplied AT/K/PH 4161 chiller units to reduce costs for the food manufacturer.
Sales director at ICS Cool Energy, Richard Metcalfe, explains how the company’s engineers supplied a full turnkey system for the site. “We ensured that we covered each aspect of the solution from the initial surveying and energy analysis of the site, to installing and commissioning of equipment. “The units with heat recovery functionality are capable of extracting 361.8kW, providing the food manufacturer with a modern range of air cooled temperature control, subsequently reducing overheads and benefitting their environmental credentials in a sustainable way by negating previous reliance on existing units containing R22 refrigerant gas.”
From 1 January 2015, the R22 refrigerant will no longer be replaceable and ICS Cool Energy is advising companies to review their chiller systems now, incorporating
newer, more technologically sustainable alternatives before it is too costly and too late.
Mr Metcalfe continues: “The new system provides cooling to the site’s processes whilst simultaneously utilising any waste heat that would usually be expelled to the atmosphere, recycling it to pre-heat the mains water feed at the site’s steam generation plant. During standard operation, savings of up to £56,000 could be achieved. However with heat recovery fully engaged it has the potential to be so much more.”
ICS Cool Energy is a European specialist in cooling and heating temperature control sales, rental and servicing. It provides solutions to temperature control requirements in a wide variety of applications within UK markets. The company’s range of high quality temperature control equipment includes both standard and energy-efficient industrial chillers and cooling towers, oil, water and pressurised water tool heaters and thermoregulators, HVAC technology and renewable energy through heat pumps.
Visit ACR News online at
www.acr-news.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44