The Melbourne Market Relocation Project has been one of Oomiak’s largest and longest running projects to date. The project involves the chilling of more than 150 tenancies at the new Melbourne Wholesale Fruit, Vegetable and Flower Centre built in Epping, Victoria.
Managed by the Victorian State Government, the development of the new Epping site and relocation of the Market has been one of the largest infrastructure projects in Victoria.
The huge 70-hectare Epping site offers over 100,000 square meters of warehousing space which makes it the largest warehousing precinct at any central market in Australia.
The new Market was designed through utilising extensive consultation, observation and international benchmarking to deliver a market that is considered world class.
Oomiak’s role in the project was through the design, installation and commissioning of the massive centralised refrigeration system.
Traditional markets see numerous rooftop cooling systems for each individual stall holder. These systems create several problems including access, noise and poor energy efficiency. Oomiak undertook a detailed and thorough engineering process to provide an alternative centralised refrigeration system that would meet the requirements of all tenants for cooling and air conditioning.
Key Benefits of a Centralised System
The use of ammonia as the primary refrigerant (with a zero global warming potential) kept remote from the Market building.
The use of glycol as a safe secondary refrigerant to maintain tenant fit out flexibility
A much more efficient system with flexibility and redundancy to lower operator risk
Significant environmental and cost benefits
The central plant comprises three primary refrigerant ammonia chiller systems each consisting of a screw compressor, an evaporative condenser, a surge vessel and chiller PHE and pump. These chillers serve to cool a reticulated glycol system comprising a primary and secondary circuit which provides chilled glycol supply to:
Each tenancy in the Market for cool room refrigeration loads via individual heat exchanger arrangements at each tenancy
The Flower market cool rooms via a heat exchanger arrangement located in the flower market; the secondary circuit of which supplies glycol to ceiling hung fan coil coolers in each individual cool room.
Number of potential customers – 180+
Potential plant cooling capacity – 14,400 kW
Metres of pipe installed – 5,300m
Litres of glycol solution – 430,000ltrs
Expected reduction in power consumed – 30%
Expected reduction in CO2 emissions – 40% or 10,700 tonnes per year which is equivalent to removing 4000 cars from the road per year