Industrial, transport refrigeration & heat pumps with NH3

By Janet Thompson, Sep 18, 2013, 16:23 4 minute reading

An energy efficient CO2/NH3 plant for bakery products, ammonia plate freezers for fishing vessels and the Drammen heat pump, one of the world’s largest natural heat pumps for district heating are some of topics of case studies to be presented at the ATMOsphere Europe conference. The Review Panel has selected ammonia case studies by Mayekawa, DSI and Star Refrigeration.

This year, ATMOsphere Europe 2013 features several innovative case studies focusing on NH3 in different applications. The Industrial, Transport Refrigeration & Other Applications Session and the Heat Pump Session will take place in parallel on Tuesday, 15 October.

Natural refrigerants with high pressure compressors in industrial plants by Robert Sossi, Mayekawa

The case study focuses on a French plant installed in 2011 by contractor Axima Refrigration, The plant was installed for a nominal freezing production capacity of approx. 3 mW at -35°C product temperature with a CO2/NH3 cascade system. The presentation will include an additional project example of a high pressure reciprocating ammonia compressor for the production of 90°C hot water of approximately 3 mW. Heat rejected from the chilling installation is used as the heat sources. The study looks at the operational results of the plant, including energy efficiency, investment and operating cost summaries.

Plate freezers aboard fishing vessels using CO2 and ammonia by Mads Sigsgaard, DSI
Maximizing production and refrigeration efficiency is key for ship-owners when investing in plate freezers. Environmental legislation is forcing the change to natural refrigerants, but the limited space in a fishing vessel means that improving the operational efficiency of the refrigeration system and optimizing the factory throughput is very important. The additional factory throughput and the difficulty getting people to work aboard calls for improvement of the working environment. In the last years, we have delivered many plate freezers for European fishing companies based on natural refrigerants,” says Mads Sigsgaard, Regional Sales Manager for DSI.

For more than 30 years, DSI has manufactured plate freezers for installation aboard fishing vessels. The earliest installations used HCFC and HFC refrigerants. Today, most new installations aboard European fishing vessels employ NH3 and CO2 plate freezers. This case study will show that the adaption of natural refrigerants in the fishing vessels has been going on for several years and continues with the aim of maximizing the efficiency of the systems and improving the working environment in the factory aboard.

Delivering 90°C district heat from the fjord with zero emissions and zero GWP by Dave Pearson, Star Refrigeration
Star Refrigeration’s system has quite literally delivered the impossible…90°C from a heat pump using ammonia. More than just being technically possible, the systems >3.05 COPh shows that large ammonia heat pumps are commercially viable as well. This presentation covers the technical, the commercial, the practical as well as the environmental aspects that go into making this the world’s first and largest 90°C ammonia heat pump,” says Dave Pearson, Director of Innovation at Star Refrigeration.

This presentation will focus on the Drammen Heat Pump, one of the world’s largest natural heat pumps for district heating, which Star Refrigeration designed and manufactured to deliver 14MW of heat at over 90°C and to save 15% of energy consumption. The system components are specifically designed for NH3 and pressures up to 65bar. The special design and the application of cutting edge technology deliver 3-fold heating capabilities, compared to an electric heating system.

Additional case studies at ATMOsphere Europe 2013

  • Efficient road transport refrigeration unit using CO2 by Sebastien Lemoine, Carrier Transicold
  • CO2 and Propane – two efficient partners for industrial cooling by Robert Baust, Schiessl
  • Thermal compression of CO2 to reduce boiler consumption by half by Luc Jacquet, boostHEAT
  • Integrated CO2 booster for high-efficiency cooling, heating and air-conditioning by Jens Kallesoe, Advansor
  • CO2 integrated systems for warm climates by Diego Malimpensa, Carel Industries S.p.A.
  • The CO2 'dream solution' for a supermarket - a concept case by Torben Funder-Kristensen, Danfoss
  • Advanced CO2-booster-system for warm climates by Jonas Schönenberger, Frigo-Consulting AG
  • Improving efficiency for small transcritical CO2 supermarket installations by Christian Heerup, Danish Technological Institute (DTI)
  • CO2 booster for convenience stores using mixed scroll/piston compressor technology by Sylvain Lamy, Emerson Climate Technologies GmbH
  • Process cooling with CO2 in Mack brewery, Norway by Kent Hofmann, Green & Cool
  • Environment-friendly heating with R290 heat pumps by Dr. Joachim Maul, ait-deutschland
  • Green HP - development of next generation components and heat pumps with natural refrigerants for retrofitting buildings in Europe by Thore Oltersdorf, Fraunhofer

For more detailed descriptions of these case studies, please use the following links:

Commercial refrigeration case studies

Heat pumps case studies

Industrial & transport refrigeration and other applications case studies

About ATMOsphere Europe 2013
15 & 16 October at the Crowne Plaza Le Palace Hotel in Brussels, Belgium

For the fifth consecutive year, leading suppliers, end users, consumer brands, policy representatives, NGOs and other HVAC&R industry experts will gather at ATMOsphere Europe 2013 the discuss the latest natural refrigerant developments. The event will provide an exclusive look at the upcoming F-Gas regulations with input from key government officials from the European Institutions as well as national governments. The conference also includes case study presentations of the latest and most innovative natural refrigerant technologies and projects and in depth panel discussions featuring end users and suppliers.

View ATMOsphere Europe 2013 programme

Register for ATMOsphere Europe 2013

For general information about ATMOsphere Europe 2013, please visit the event website at


By Janet Thompson

Sep 18, 2013, 16:23

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