Technology Report Industrial refrigeration and chilled glycol and water applications

Ph: 02 9995 5000 (switchboard) Ph: 131 555 (environment information and publication requests) Ph: 1300 361 967 (natioanl parks, climate change and energy efficiency information and publication requests) The Office of Environment and Heritage, Department of Premier and Cabinet and the State of NSW are pleased to allow this material to be reproduced in whole or in part for educational and non-commercial use, provided the meaning is unchanged and its source, publisher and authorship are acknowledged. Office of Environment and Heritage, Department of Premier and Cabinet has compiled the Industrial refrigeration and chilled glycol and water application technology report in good faith, exercising all due care and attention. Office of Environment and Heritage does not accept responsibility for any inaccurate or incomplete information supplied by third parties. No representation is made about the accuracy, completeness or suitability of the information in this publication for any particular purpose. OEH shall not be liable for any damage which may occur to any person or organisation taking action or not on the basis of this publication. Readers should seek appropriate advice when applying the information to their specific needs. Industrial refrigeration and chilled glycol and water applications 03 This report was prepared on behalf of the Office of Environment and Heritage by Minus40, and is based on calculations and energy modelling conducted in mid 2010. Modelling was based on conventional single and two stage industrial refrigeration systems. Arbitrary load profiles, representative of common industrial refrigeration applications, were used to represent refrigeration plant duty. Ambient weather conditions were factored into the modelling and were based on records obtained from the Australian Bureau of Meteorology. Energy saving technologies were modelled as variants of the conventional single or two stage refrigeration plants. 04 Other criteria like functionality and construction costs are frequently given higher priority. The energy costs of a refrigeration plant could be reduced by around 40 per cent, possibly more, through adoption of the most energy efficient equipment and techniques. A total of 15 energy-saving technologies have been identified in this report, and while many require capital outlays, a series of verified case studies in the report indicate the payback period is often less than three years. With rising energy costs and growing environmental awareness, there is a growing need to reduce power consumption in the industrial refrigeration sector in NSW. This report outlines 15 energy saving technologies available to increase the energy efficiency …