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TAS Country : April 26th 2012
10 Tasmanian Country Friday, April 27, 2012 2063841-120427 Advertisement Pierce "Acremaster" centre pivots powered by a water turbine NEW ENERGY SAVING TECHNOLOGY FOR SMALL FIELD IRRIGATION In today's market there are a number of full sized centre pivot irrigators designed for larger fields. Micro pivots have been developed to irrigation on smaller sites under 250m radius. They come towable as standard and can save labour costs and your time compared to other forms of irrigation. These pivots run with 100 watt 48 volt DC powered electric motors, enabling low power requirements to drive the machine. This is equivalent to a 100 watt light globe, which is a distinct advantage to conventional centre pivots. USING THE MICRO PIVOT AND WATER TURBINE A 6 span towable minipivot which is 246 metres long (covering 47 acres) per site is quite common. This requires a peak power load of under 600 watts, less than a small electric drill. The only difference is when irrigating, the machine will only operate the motors for 20% of the time (for example when applying 30 mm of water). This equates to an hour is less than 120 watts. If mains power, 240 or 415 volt is available then power supply is straightforward for the minipivot. If a generator is required a common problem is durability due to the low power loads. A cheap unit running at high speed (3000 rpm) will not last long; nor will a 4 pole unit running at 1450 rpm -- due to glazing of the motor due from low loads. EXAMPLE OF THE WATER TURBINE IN USE David Barron has installed a mini pivot at Cooma, it is 267 metre long and irrigates 55 acres per site. The pivot works two sites and the water is drawn from a river with a diesel powered pump. Since there is no mains power available the turbine is bolted to the inlet manifold of the pivot and is attached to the pivot point frame. This allows a tractor with a 3 point linkage to pick up the pivot point frame and tow it from one site to the next. • Pivots powered by water Van Diemens Land Irrigation have recently commissioned 2 x 210m radius Pierce "Acremaster" centre pivots at Berkley Farm, Ouse. Utilizing the Acremaster power turbine which generates its own power by water flow eliminating the need for Aurora power connection or a energy hungry diesel generator option. Van Diemens Land Irrigation are Tasmanian agents for Pierce "Acremaster" micro pivots and the Acremaster power water turbine You can see the Pierce pivot and linear irrigation range at Agfest Van Diemens Land Irrigation 730-732. Seventh Avenue Direct Importing agents and Manufactures PH Rob Ikin 0408 131 692 • USA manufactured premium pivots, micro pivots & linears • Irtec Quality hardhose irrigators • Electric and Diesel Pump Sets • Pipes and fittings Save buying direct without compromising on Quality & Service P: 6334 5600 - 4B Swanston Park Drive, Launceston, 7250 www.vdlirrigation.com.au MADE IN ITALY MADE IN USA See us at Agfest 730-732 Seventh Ave
April 19th 2012
May 3rd 2012