SM18: Technical Maturity of Low Charge NH3 Systems
Stefan Jensen, Managing Director, Scantec
The design features of several commercially operating low charge NH3 refrigeration systems overseas as well in Australia. Applications range from refrigerated storage and distribution through to meat processing, blast freezing and preparation of processed foods.The systems to be presented were installed during the period 2012/13 through to 2018. Discussion of operating experiences with respect to energy performance, reliability, annual maintenance costs, customer acceptance and comparisons with other technologies such as HFC.
Intent is to provide users of refrigeration systems with an overview that facilitates an informed decision-making process in relation to future proofing in the wake of the global HFC phase-down.Paper will also discuss the future prospects of low charge NH3 technologies in areas such as plate freezing, in-line chilling and blast freezing and super low charge applications employing the LOGAS defrost concept.
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Stefan Jensen graduated in 1978 in Denmark with a Bachelor of Science degree in Mechanical Engineering. His professional career commenced in 1978 with Danfoss, Denmark followed by two years at SABROE Refrigeration A/S, Denmark as a Project Engineer. In 1983, he joined Wildridge & Sinclair, Brisbane, Australia as Technical Manager, Industrial Refrigeration. He later became co-inventor of the Rotadisk flake ice maker. In 1988 he joined the food machinery manufacturer Heat and Control Pty. Ltd. and was in 1992 appointed General Manager of the Heat and Control refrigeration division. In April 1996 Stefan Jensen co-founded scantec refrigeration technologies pty. ltd. He currently holds the position of managing director. Stefan is a Fellow of AIRAH and an Engineers Australia Fellow. He is a Registered Professional Engineer in Queensland and registered on the National Engineering Register. He has authored over 40 technical papers for AIRAH, IIR and IIAR conferences and is a member of the Board of Directors of the International Institute of Ammonia Refrigeration (IIAR) in Washington, USA. Stefan is a member of the scientific committee for the 8th International Ammonia and CO2 Refrigeration Technologies conference to be held in Ohrid, Macedonia in April, 2019.
Note: The seminar program may be subject to change. If you have registered for this seminar any topic, presenter, timetable or price changes will be communicated as soon as possible prior to the event.