Refrigeration 2018 Conference

Refrigeration 2018 Conference
The AIRAH Refrigeration 2018 Conference will build on the success of the Refrigeration 2017 Conference held in Melbourne. Over 140 delegates attended the 2017 conference, and AIRAH is looking at expanding on the topics and discussion that were held in Melbourne.

The conference will include sessions reviewing the latest developments regarding legislation, technologies, and a multitude of industry-specific case studies. The conference trade display will give participants the opportunity during the breaks and cocktail functions to interact with leading industry suppliers on the latest refrigeration technology offerings.
26/03/2018 - 27/03/2018
Endeavour Grand Ballroom Novotel Sydney Brighton Beach Cnr The Grand Parade and Princess Street Brighton-Le-Sands, SYDNEY NSW 2216 AUSTRALIA

Key dates

  • Program released – January 31, 2018 
  • Speaker paper submission – January 12, 2018
  • Speaker PowerPoint submission – February 28, 2018
  • Refrigeration 2018 Conference – March 26–27, 2018.


Note: early-bird prices close on March 2.

AIRAH members early-bird
AIRAH members            $660  
Early bird non-member    $660
Non-member       $770  
Student member     $195  
Student delegate    $255  

Major sponsor

Supporting sponsors


Supporting organisation





Bjarne W. Olesen, 2017-2018 ASHRAE President

Bjarne will provide an update on the research and activities that ASHRAE are taking in refrigeration.


Prof. Dr Armin Hafner, Norwegian University of Science and Technology (NTNU)

Keynote speaker

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The advantage of natural working fluids


The newly introduced next generation of hydrofluorocarbons (HFCs) with ultra-low Global Warming Potential (GWP) have a very short (atmospheric) lifetime due to their unsaturated chemical bonds, however, they are highly toxic in combination with water, and do not represent a safe and sustainable alternative to traditionally used HFCs. The manufacturers of refrigeration equipment are facing challenges related to the legislative requirements forcing them to implement less conventional refrigerants with lower GWP in their new products.

Natural working fluids like ammonia, carbon dioxide and hydrocarbons have been demonstrated to be energy efficient and environmentally benign alternatives.

Ammonia refrigeration systems have been successfully in the market for more than 140 years. Especially at high ambient temperature conditions, these units can outperform conventional HFC systems.

The fluid- and thermophysical properties of CO2 are quite different from most other working fluids. The refrigeration system designs have to be carefully adapted to the properties of CO2, thereby maximising energy efficiency and minimising total cost of ownership.

Integrated CO2 systems can simultaneously provide refrigeration capacities at various temperature levels as low as -50° C, air conditioning (AC), heating, and even sanitary hot water at adequate temperature levels. A further integration of advanced thermal storage devices will enable these systems to become a valuable element within smart (thermal) grids.

Hydrocarbon-based AC split units are the future, and large-scale production lines are under preparation.

Besides a short historical review, Hafner will provide examples of the latest system developments applicable in the industrial, commercial and marine refrigeration sectors overseas.

Prof. Dr Armin Hafner is a Professor in Refrigeration Technology at the Norwegian University of Science and Technology (NTNU). Professor Hafner’s main fields of expertise include refrigeration and heat pump technology, CO2 technology for various applications; supermarkets, industrial heat pumps, transport refrigeration; system design for refrigeration, air conditioning and heat pumps, (stationary and automotive); compressor, ejector and compact heat exchanger technology; working fluids, with emphasis on natural working fluids, CO2, NH3 and hydrocarbons; life-cycle climate performance of various energy systems.

Professor Hafner has more than 100 international and national publications within the area of refrigeration and process engineering.

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Julian Hudson, M.AIRAH, Glaciem Cooling Technologies

Crossing the CO2 equator; experimental testing of R744 (CO2) system with integrated dew point cooling 

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PC Infrastructure Pty Ltd is building a large motorsports park facility at Talem Bend in South Australia. Working with PCI, Glaciem will be installing a fully integrated cooling solution for the freezer and cold rooms located in the main pit building catering facility.

The systems will consist of the following integrated technologies: 100kW/h thermal energy storage (TES); new -6°C phase-change material (PCM); newly developed high CO2 only system (offers high efficiencies in high ambient conditions of 45°C); photovoltaics (PV); battery storage and machine learning interface (MLI). The project will be completed in early January 2018. Hudson’s paper will share the findings, and demonstrate how these systems can be successfully integrated with sources of renewable power. The paper will also show how this technology can satisfy the current drivers, and the need for a step-change in the refrigeration industry, including changes to the international and domestic legislative environment, the impacts of extreme volatility in energy markets, and challenges associated with energy security.

Professor Hafner has more than 100 international and national publications within the area of refrigeration and process engineering.

CEO of Glaciem Cooling Technologies, Hudson has more than 28 years’ experience in the design, construction, manufacturing and installation of commercial and industrial refrigeration plant and equipment. Glaciem is a South Australian company developing sustainable integrated cooling systems for the global market.
Through collaborative research and development with the University of South Australia’s Barbara Hardy Centre for Low Carbon Living, Glaciem’s focus is to provide refrigeration technology that eliminates the need for synthetic refrigerants, provides end users extensive peak-load management and energy storage options, and maximises the impact of sources of renewable energy such as photovoltaics.

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Andrea Espinosa, Department of Environment, Land, Water and Planning (Vic)

New opportunities for refrigeration system upgrades in the Victorian Energy Upgrades program

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Victorian Energy Upgrades is a Victorian government program that incentivises energy efficiency upgrades in homes and businesses by creating a market for such activities. The program has recently introduced new ways for larger and more complex upgrades to earn incentives, such as those involving refrigeration systems.

Espinosa will describe how this new method is relevant to refrigeration upgrades. It will guide the audience through participating in this opportunity, from pre-planning, implementing the upgrade and calculating the impact and incentives. Professionals in this industry could use these incentives to pass on discounts to customers or increase project profitability.

Espinosa is a policy officer at the Department of Environment, Land, Water and Planning in the Victorian Energy Upgrades Team, where she works in policy development for project-based activities. She has experience in strategic consulting (renewable energy policy, energy networks risk and opportunities, asset management systems), civil maintenance benchmarking, environmental compliance and pharmaceutical utilities validation. Espinosa holds qualifications in engineering and project management.

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Michal Haida, Silesian University of Technology (Poland)

The energy performance investigation of the R744 Brayton Cycle equipped with the gas ejector

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In this paper, the supercritical R744 Brayton cycle equipped with a gas ejector will be presented. The cycle can be applied to thermal solar plant or nuclear plants to improve the energy performance. The first law analysis was performed for different configurations of the system, i.e., without the ejector and with the ejector designed by use of either the simple one-dimensional model or the computational fluid dynamic (CFD) model. The results of the CFD model were used to generate the accurate and fast reduced-order model (ROM) to integrate the CFD gas ejector results with the system simulations.

Haida is a PhD student at the Silesian University of Technology in Gliwice. Haida’s main fields of interest include: refrigeration and heat pump technology; CO2 vapour compression rack equipped with an ejector; CO2 Brayton cycle; CFD modelling; and designing of the ejector and two-phase flow analysis. Haida is a main author and co-author of the several research papers regarding to the CO2 two-phase ejector technology and CO2 multi-ejector refrigeration systems for supermarket application.

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Andrea Voigt, European Partnership for Energy and the Environment (EPEE)

Keynote speaker

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In the EU alone, heating and cooling represents 50 per cent of annual energy consumption. Over 80 per cent of the emissions of heating and cooling equipment are related to energy consumption.

Ecodesign and Energy Labelling is Europe’s regulatory framework to address the energy efficiency of products. Ecodesign product initiatives “push” manufacturers to develop products that fulfill minimum energy-efficiency performance requirements (MEPS). Energy labelling, on the other hand “pulls” consumers to buy the most energy-efficient equipment.

Alongside the energy-efficiency requirements, F-Gas Regulations stipulate a very ambitious HFC phase-down, requiring a rapid move towards lower-GWP refrigerants. Steep steps will occur as soon as 2018 and 2021, requiring an HFC consumption reduction of more than 50 per cent compared to the baseline of 2009–2012.

The EPEE Gapometer has been developed to draw up a roadmap on how to achieve the ambitious requirements of the phase-down, and to measure whether or not market reality matches the roadmap. Results are now available. They show that significant progress has been made, but that it is necessary to further accelerate the transition towards lower-GWP refrigerants to avoid severe product shortage and price increases.

Overall, the major challenge is to get the balance right between energy efficiency, the transition towards lower-GWP refrigerants, safety, and cost. If this does not occur, not only will the environment suffer, consumers and industry will also be harmed.

Concepts such as the “Least Life Cycle Cost” have an important role to play when setting legal requirements on energy efficiency. Standards and buildings codes must reflect regulatory changes, and allow for the use of more flammable refrigerants. And to guarantee the safe use of all products and refrigerants, training for installers and personnel needs to be adapted.


Andrea Voigt was appointed Director General of the EPEE, the voice of the refrigeration, air conditioning and heat pump industry in Europe, in 2009.

She guides EPEE member companies towards strong common positions, and represents the EPEE at meetings with decision makers at European institutions, member states’ governments and industry business leaders. She is also building up and further strengthening the EPEE’s network within the European and international association landscape.

Prior to joining the EPEE, Andrea had been working in the refrigeration and air conditioning industry for more than 15 years, holding various functions in the fields of marketing, communication and public relations. A German national, Andrea is fluent in English and French, holding degrees in public administration (MPA), applied linguistic science (MA) and marketing.

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Caroline Rham, shecco

Policy and market trends regarding growing use of natural refrigerants in refrigeration globally. How does Australia and New Zealand stand in comparison to the world?

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Rham will provide an overview of the growing use of natural refrigerants in Australia, New Zealand, Europe, North America, China and Japan, and the technological differences between major regions. She will look at the policy initiatives and advancements in technology, and the growing trend of low-charge ammonia refrigeration in both commercial and industrial systems.

For over 15 years, Rham has worked for global leaders in safety, gas emission control, energy and refrigerants businesses in France and across the Asia-Pacific region. While working with a leading gas supplier in Australia, she launched R744 with a low moisture content. Rham is the business development manager with shecco in Australia and New Zealand.

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Dario Ferlin, M.AIRAH, Woolworths

Energy performance benchmarking of an Australian transcritical CO2 supermarket

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In May 2016, Woolworths opened its pilot transcritical CO2 refrigeration system in a 3200m2 supermarket in Western Sydney (Greenway Village – Colebee). Peak temperatures in summer regularly exceed 40°C, with a design outdoor ambient temperature of 45°C.

The same area of Western Sydney also hosts many recent built cascade R134a- CO2 Woolworths supermarkets as well as the older parallel rack R404a stores. Ferlin will outline why Greenway Village presents a great opportunity to benchmark energy performance of a warm-climate transcritical CO2 supermarket, albeit a pilot transcritical CO2 system. He will discuss some of the variables that may impact a store’s refrigeration system energy consumption, and provide a format for showing the results of a benchmarking exercise in such a way that a non-technical audience (i.e., management) can appreciate and confidently draw conclusions from.

Ferlin entered the refrigeration industry in 2001, where he collaborated in the first transcritical CO2 projects being piloted in Europe. He later relocated back to Australia, where he now works at Woolworths as the company’s innovations engineer.

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John Ide, Yalumba Family Vignerons

Sustainability and energy efficiency at Yalumba Family Vignerons

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Yalumba has been on a journey towards sustainability for over 20 years. Early on, when the energy prices were relatively low, the main focus was on waste, recycling and water efficiency, but over time their focus has gradually shifted towards energy efficiency. In the wine industry, refrigeration systems are typically 30 to 50 per cent of overall energy consumption, and as such feature largely in any discussion on energy efficiency and reduction.

This presentation will focus on the practical applications involved with their energy efficiency program over the last 10 years, including a discussion on outcomes and their plan for the future.


With a background in mechanical engineering and winemaking, Ide has been heavily involved in refrigeration plant installation, operations and continuous improvement over multiple sites. He has over 30 years’ experience in process control and project engineering and has specifically been involved in the wine industry for the last 15 years. Ide is currently responsible for the winery operations and maintenance at the Yalumba Winery and Oxford Landing Winery site in the Barossa Valley.

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Wolfgang Zaremski, Frigo-Sol GmbH and VDKF President

Keynote speaker

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The new European HFC Regulation 517/2014 is the most significant regulation change over the last 150 years to the European refrigeration and air conditioning industry. The ban and phase-down of F-gases from 2015 to 2030 appears to be the beginning of the end for synthetic refrigerant gases in Europe. Today, HVAC&R and heat pump contractors have no real 100 per cent refrigerant substitutes available. Each substitute refrigerant is different. Future synthetic refrigerants will have a significant temperature glide or feature varying degrees of flammability. Most of the natural refrigerants are highly flammable. Flammability adds significantly to the contractors’ safety responsibility compared to non-flammable refrigerants.

Zaremski will explain the need for contractors to adapt to these industry changes and why it is important to look at compulsory training and qualifications in handling new refrigerants. Training should include personnel covering design, engineering, installation, operation and maintenance.


Zaremski was elected President of the German Association of Refrigeration and Air Conditioning Contractors (VDKF), the voice of the refrigeration, air conditioning and heat pump contractors in Germany, in 2012. Since 1962, VDKF has been the leading trade association of the German RACHP industry. Nearly 1000 member companies from trade, commerce and industry are joined together in the VDKF. VDKF is also a member of ASERCOM (Association of European Refrigerant Component Manufacturers). Zaremski is a member of the AREA (Air Conditioning and Refrigeration European Association) board, holding the position of Treasurer, and a convener of the working group Market Surveillance.

Zaremski has been working in the refrigeration and air conditioning industry for 40 years, holding various roles in the fields of engineering, service and sales. He is owner of Frigo-Sol GmbH, which he founded 17 years ago. Frigo-Sol is a contracting company involved in distribution, development and building of tailor made solutions for industrial refrigeration, cold storage warehouses, residential and light commercial applications.

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Alexander Cohr Pachai, AM.AIRAH (Denmark) and Ricardo Hoffman, M.AIRAH, Johnson Controls

Heat pumps for many applications

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Hoffman and Pachai will outline some of the applications in which heat pumps can be used. What makes industrial heat pumps interesting is the ability to produce both cold and hot water simultaneously. Heat pumps are produced for many applications with capacities from a few kilowatts to up in the megawatt class, and for many different temperature levels. One of the drivers for using heat pumps is the desire to use electricity rather than fossil fuels to generate hot water, which can be used in many applications.

Pachai is technology manager and senior engineer at the Sabroe factory in Aarhus, Denmark for Johnson Controls. He joined Johnson Controls (formerly York) in 2000, and has held various positions within the organisation. He has worked with CFCs, HCFCs, HFCs, hydrocarbons, carbon dioxide, water and ammonia as refrigerants and more recently, has worked in the promotion of heat pumps.

Hoffman started at Johnson Controls (formally York) in 2001, in Brazil. Since then, he has worked for many organisations under Johnson Controls such as engineering systems, unitary products, marine and offshore and industrial refrigeration. Hoffman is currently a sales engineer for industrial refrigeration equipment at Johnson Controls.

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Robert Kebby, Honeywell Refrigerants (UK)

Supermarket architectures eco-efficiency concept

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Commercial refrigeration has been under scrutiny by politicians and regulators around the world, because of the use of high-GWP fluids such as R404A, and also because of the high leak rates. Kebby will look at some of the challenges the European F-gas Regulations created, and some of the ways to reduce energy consumption in the commercial refrigeration sector. This will include looking at the current solutions available that can be used to help the commercial refrigeration sector meet the F-gas targets. This includes retrofitting systems with a lower GWP refrigerant –the quickest, most economical and environmentally friendly solution.

Kebby will outline how for new builds, that several architectures are being explored. The combination of R744 with newly developed HFOs and HFO blends offers added benefits of safety and performance. Comparing these different architectures and their impact on the environment, efficiency and economics is key to decision making. Examples of such applications and architectures will be presented, and the concept of eco-efficiency will be introduced and used as a basis to compare the various architectures’ financial and environmental impacts.

With over 36 years’ industry experience covering a variety of sales, product and marketing roles, Kebby moved from Australia to the United Kingdom in 1997. He is currently the global business manager (Refrigeration) for Honeywell.

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Klaas Visser, KAV Consulting – Refrigeration Engineering

Applying CO2 refrigeration to the cooling and heating of buildings to achieve reductions in energy and cooling water consumption

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In many large office buildings, hospitals, supermarkets and hotels, AC cooling is affected by chilled water generated by a refrigerating plant that rejects its heat to the environment by means of cooling tower water or, increasingly so, by air-cooled condensers and adiabatically assisted air-cooled condensers. This presentation will review the Council of Australian Governments (COAG) database on annual energy consumption per m2 of a variety of building types. The presentation will show that consumption of electrical energy, natural gas and cooling water may be significantly reduced by using transcritical CO2 refrigerating systems for building cooling, heating and sanitary hot water, thus saving gas and attendant emissions, and cooling water.


Klaas has over 50 years’ experience in the design and management of industrial refrigeration systems. He has specialised in the food industry, with a particular emphasis on the meat industry. Klaas is internationally renowned for his contribution to the meat industry in developing large-scale automatic plate freezers and the design of the world's first multi-function two-stage transcritical CO2 refrigeration system with parallel compression performing seven cooling and nine heating functions.

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Novotel Sydney Brighton Beach
Cnr. The Grand Parade and Princess Street
NSW 2216



AIRAH has partnered with Ozaccom to offer all Refrigeration 2018 Conference delegates a special accommodation rate. To view prices or book accommodation, please click here.

For further accommodation enquiries, please contact:
1800 814 611 (Australian Toll Free) or +61 7 3854 1611 
Email: [email protected]


Contact the AIRAH office on (03) 8623 3000 or email [email protected] to be sent information on the conference sponsorship packages.

Conference committees

Technical Organising Committee

Ben Adamson, F.AIRAH, Refrigeration Engineering International
Graeme Dewerson, Affil.AIRAH, A-Gas Australia
Jonathan Fryer, M.AIRAH, ISECO Engineering Services
Julian Hudson, M.AIRAH, JCH Refrigeration Consulting
Stefan Jensen, F.AIRAH, Scantec Refrigeration Technologies
René Le Miere, Bitzer
Ben Quast, M.AIRAH, Oomiak

Organising Committee

Emily McLaughlin, AIRAH
Brendan Pejkovic, AIRAH


For further information about the Refrigeration 2018 Conference please contact the AIRAH office on (03) 8623 3000 or email [email protected]