This category contains 91 posts

More drive, less work – motor, pump and fan efficiency

An electric motor uses four to 10 times its purchase price in electricity annually.1 When choosing a motor it is essential to consider the operating cost as well as the capital cost. High efficiency motors can cost up to 40 per cent more than standard motors, however, the payback can be less than two years, due […]

Selecting and applying positive displacement pumps (PART 1)

The PIA’s Australian Pump Technical Handbook is a cornerstone text for the Australian pump industry and, in our opinion, a must have for anyone who deals with pumps on a regular basis. In this ongoing series, we feature abridged chapters from the classic book to showcase the various areas covered and to reacquaint readers with […]

Optimising pumping using variable speed drives

by Troy Leyden, Operations Engineer, Fitzroy River Water It is well known that a variable speed drive (VSD) can be used to reduce energy consumption by slowing down a pump instead of throttling a valve to deliver the desired flow rate. But what savings could be achieved if a VSD was installed? If a VSD […]

Lessons learnt from the Alfred Street pump station upgrade

A major pump upgrade to the City of Logan’s largest wastewater pump station, involving 3D laser surveying and the reuse of existing pump station components, has won an industry award for its innovative design and cost-savings measures. The Alfred Street Pump Station, located at Slacks Creek in Logan City, has operated since 1984, taking wastewater […]

Meeting the system needs

by Ray Hardee, Chief Engineer, Engineered Software In this article, we will look at a wastewater collection system consisting of a pump, collection and destination tanks, and the interconnecting piping. In this system, water is pumped from a collection tank to the destination tank and a pump is required to overcome the change in static […]

Why don’t good seals wear out?

by Bill McNally, McNally Institute We know that a mechanical seal is supposed to run until the carbon wears down, but our experience shows us this never happens with the original equipment seal that came installed in the pump. We buy an expensive new mechanical seal and that one doesn’t wear out either. So was […]

Energy saving at a Mundubbera citrus farm

In this Queensland Farmers Federation case study, a 100-hectare citrus farm in the Mundubbera region installed variable speed controls and a solar photovoltaic system as part of an irrigation upgrade that saw a 54 per cent saving in energy. The farm sources water for irrigation from an underground aquifer. Citrus trees are irrigated using sprinklers […]

Irrigators having a field day with energy savings

The results of recent energy audits have been showcased at regional field days in Queensland, which provide information on how irrigators and other growers can cut on-farm energy costs by up to 70 per cent. Queensland Minister for Agriculture and Fisheries, Leanne Donaldson, said over the past two years a series of audits had been conducted to determine […]

Mine pumping no longer a drag

The CSIRO has developed new technology that reduces the costly ‘drag’ in industrial pumping, which is now being implemented by a major mining company. Following a successful trial, Glencore’s Minara Resources adopted the drag-reduction technology, which aims to save mining companies millions of dollars on energy and water use each year while boosting their productivity. Glencore Minara Resources […]

Considerations for selecting and installing a progressive cavity pump

The pump industry relies on expertise from a large and varied range of specialists, from experts in particular pump types to those with an intimate understanding of pump reliability; and from researchers who delve into the particulars of pump curves to experts in pump efficiency. To draw upon the wealth of expert knowledge the Australian pump industry has to […]


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