Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search


Scientists Keeping It Cool

How to keep our large refrigerated coldstores working more effectively and economically is the focus of a Massey University based study.

The initial work, led by Don Cleland, has involved studying protection systems for doors which help keep warm air out of industrial coldstores.

“New Zealand has one of the highest volumes of refrigerated storage per head of population in the world. This is due to our large refrigerated food export industry which accounts for about a third of our export earnings.

“Refrigerated buildings use about five per cent of the national electricity consumption. Our research shows that energy savings of up to 20 per cent are often achievable for existing refrigerated buildings,” said Mr Cleland.

“For years New Zealand companies have used manual or slow-acting mechanical doors. These doors let in lots of warm outside air which carries water, which then ices up the inside of the coldstore making them less efficient and creating a safety hazard,” said Mr Cleland.

The research, which is an investment of the Foundation for Research, Science and Technology, will reduce costs and improve the quality of refrigerated products.

“Our research will give companies the evidence they need to justify expenditure on improved door technology such as fast- acting roller doors. It will also enable designers to more accurately size refrigeration systems,” said Mr Cleland.

In addition, the research group is developing models of coldstore airflow which will enable further studies of airflow patterns within refrigerated buildings.

For further information: Don Cleland, Institute of Technology & Engineering, Massey University Tel 06 350 5240, Email:

Madeleine Setchell, Foundation for Research, Science and Technology Tel 04 498 7806 Mobile 025 40 60 40

© Scoop Media

Business Headlines | Sci-Tech Headlines


Media Mega Merger: StuffMe Hearing Argues Over Moveable Feast

New Zealand's two largest news publishers are appealing against the Commerce Commission's rejection of the proposal to merge their operations. More>>


Approval: Northern Corridor Decision Released

The approval gives the green light to construction of the last link of Auckland’s Western Ring Route, providing an alternative route from South Auckland to the North Shore. More>>


Crown Accounts: $4.1 Billion Surplus

The New Zealand Government has achieved its third fiscal surplus in a row with the Crown accounts for the year ended 30 June 2017 showing an OBEGAL surplus of $4.1 billion, $2.2 billion stronger than last year, Finance Minister Steven Joyce says. More>>


Mycoplasma Bovis: One New Property Tests Positive

The newly identified property... was already under a Restricted Place notice under the Biosecurity Act. More>>

Accounting Scandal: Suspension Of Fuji Xerox From All-Of-Government Contract

General Manager of New Zealand Government Procurement John Ivil says, “FXNZ has been formally suspended from the Print Technology and Associated Services (PTAS) contract and terminated from the Office Supplies contract.” More>>