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Low Charge CO2/ammonia cascade systemPresentation | published on 18 June 2014Alfa Laval’s Carnie Marsh highlights the advantages and disadvantages of cascade CO2/ammonia refrigeration systems, which represent practical alternatives to conventional two-stage ammonia systems for the lower... more
Food industry utilizes natural refrigerants for office HVACPresentation | published on 18 June 2014From Stella, Luke Facemyer highlights the potential of natural refrigerants to replace HFC gases, in particular in the commercial refrigeration sector, and presents some case studies of CO2/NH3 systems and... more
Reducing ammonia charge in a large public refrigerated warehousePresentation | published on 18 June 2014Bruce I. Nelson, President of Colmac Coil Manufacturing, Inc. draws attention to the pitfalls of pumped ammonia systems, which maximise the amount of refrigerant in the evaporators. Direct expansion (DX) ammonia systems, manuf... more
Low charge ammonia - the natural replacement for R22Presentation | published on 18 June 2014Derek Hamilton from Star Refrigeration draws attention to the current phase out of the HCFC R-22 and its effects on the industrial refrigeration industry while exploring the options available as alternatives, together with the ... more
Moving from freon to natural refrigerant after a catastrophic firePresentation | published on 18 June 2014Benoit Rodier of CIMCO refrigeration presents a case study on an installation at Viandes Meats, a company that produces 20,000 lb/hr (9,072kg/hr) of frozen products for restaurants, hotels and institutions. The project, started... more
How CO2 allows innovative processes? A comparative study on defrost technologiesPresentation | published on 18 June 2014Since 2008, Carnot Refrigeration, based in Québec, has focused on improving its natural refrigerant expertise while providing the best customer service to 25 different installers. Supplying to different industries with a... more
Successful installations of R1270 air cooled chillersPresentation | published on 18 June 2014Eric MacGregor from Versatile Refrigeration International focused on hydrocarbon technology, discussing the first installation in North America of a secondary refrigeration system using propylene (R1270) as the primary refriger... more
EPX heat exchanger technology for dry evaporative coolingPresentation | published on 18 June 2014Vijayanand Periannan offers an overview of IDEC Systems (IEC+DEC systems) and presents and analyses the Annual Energy Consumption Analysis comparing a 100% outdoor air DEC VAV System and a 25% Outdoor Air Economiser VAV System. more
Indirect/Direct evaporative cooling in the arid West to eliminate mechanical coolingPresentation | published on 18 June 2014Through the Dina Spring Animal Shelter case study, Mike Scofield analyses the benefits of under floor systems compared to overhead systems, such as the flexibility for tenant changes, the lower fan pressure loss and the reduced... more
Genentech's project: Migrating away from HFC'sPresentation | published on 18 June 2014Michael Morehead - Global Engineering, Mechanical Engineer, Genentech, presents the objectives, approaches, and challenges for a 10-year program at Genentech’s South San Francisco campus to eliminate refrigerants that dep... more