This document discusses providing natural refrigeration solutions for Australian industry. It notes the need for more sustainable refrigeration options due to climate change and increasing energy costs. Natural refrigerants like CO2 and ammonia offer benefits over traditional HFC systems like lower global warming potential and energy efficiency. The document outlines Natural Refrigeration Company's objectives of using leading technology, training customers, and meeting policies to promote the benefits of natural refrigeration solutions. It provides examples of natural refrigeration systems for supermarkets and convenience stores and simulations showing the potential energy savings compared to traditional systems.
3. “The era of procrastination,
of half measures, of soothing
and baffling expedience of
delays, is coming to its close.
In its place we are entering a
period of consequences.”
Winston Churchill.
4. The world is moving
toward a more sustainable
future driven by the
concept of climate change,
increasing energy costs
and renewable energy.
6. • Only uses Natural
substances as a
refrigerant
1
• Typical GWP of 1
• ( R404a= 3922)
2
• Less expensive average
$7 kg3
Natural Benefits over HFC Systems
8. Our Objectives
• Technology
– Leading Edge
– Advansor are #1 in Europe
– Scan Pack NH3 Low charge Proven Track record in Australia
– We are buying proven systems
• Training
– NRC to provide Advansor training to customer staff
– NRC to promote Training in Natural refrigerant systems
– Hydro carbon Ammonia CO2
• Policies
– Meeting current and predicted future legislation
• (i.e. COP21 Climate Conference in Paris)
• Benefits
– Very good energy savings
– end user has “Green Credentials”
13. • Poor knowledge within the Consulting and Engineering Fraternity
within Australia for Natural Refrigerant Solutions
• Poor Options offered to end users further training and technical
education is required ie: Bangarang Sydney
• Lack of skilled staff for initial commissioning and ongoing
maintenance for new plant
• Conflicting and restrictive State and Federal regulations
• Lazy solutions provide poor outcomes
• Poor Understanding by state emergency response providers
14. Case examples
• Typical installations
• Large Supermarket
• Large/Medium
• Smaller convenience store
22. • Annual Simulation
performed
• Location: Melbourne
• Equipment Ambient
Design Temp.: 43°C
• Parallel Compresson
Transcritical CO2
system provides Est.
– 5.7% Energy Savings as
compared to Standard
Transcritical Booster
System
– 20.4% Energy Savings
as compared to
R134a/CO2 Cascade
System
23.
24. Simulations for Australian Cities
• Energy Savings Projections
• Parallel Transcritical vs. R134a/CO2 Cascade
– Melbourne – 20.4 to 21.0%
– Sydney – 7.1 to 9.3%
– Brisbane – 3.0 to 5.7%
– Adelaide – 14.4 to 14.8%
– Canberra – 23 to 23.5%
– Perth – 9.2 to 10.6%
– Darwin – 1.5 to 2.8%
25. Further Possible Savings
• Est. 6-8% Savings with Adiabatic Cooling on
Gas Cooler
• Savings on initial investment (‘1st Cost’)
– Cheaper refrigerant
– Only 1 Rack
– Smaller pipework saves materials AND labour
• Further possible savings with a holistic
building approach
26. A Holistic Approach to Retailers
• Ability to provide hot water reclaim due to efficient
use of higher condensing temperatures
– Heating Hot Water
– Domestic Hot Water
• High cost saving by applying store comfort cooling
– Chilled Water Cooling
– NH3 solutions
– Hydrocarbon solutions
• Smart control systems at both trading floor and plant
utilized to best advantage
27. Distinct advantages of Good design
• Lower Energy costs
• Future Proof
• Lower Maintenance costs
• Better whole of Life costs
• Socially responsible
• You make the transition ONCE
