Tuesday, December 20, 2011

New Australian Windturbine Design

Australia has done something right in the wind energy area.

An Australian company called Renewable Energy Solutions Australia Holdings Ltd. (RESA) has created what it says is a super quiet and efficient wind energy turbine.

Suggestively called Eco Whisper, the wind turbine employs 30 smaller ones capped with a specially designed cowl ring that keeps them silent in most meteorological conditions. A cone shape allows the blades to automatically rotate into the direction of the wind, with no need for a heavy tail structure.

Besides being more silent, the blades are more efficient, too. RESA says the turbines increase efficiency by 30 per cent at average wind speeds, and will keep rotating even when winds are very slow.

Main features:.20kW horizontal axis wind turbine.Virtually silent operation.6.5m blade diameter.21.1m height.30 blades extending outwards.Dynamic slew drive.Solid, lightweight structure.High performance in all wind conditions

The manufacturer says EcoWhisper is suitable for commercial, manufacturing and industrial sites, airports, ports, mining resource facilities, council sites and industrial development sites. It can also be installed on shopping centres, industrial parks, schools, universities and others. Off grid rural communities could also benefit.

It sounds like an exciting new development in wind turbine design!

Tuesday, December 06, 2011

New World Record Export Shipment from Darwin

Larger shipments of live cattle [similar to the photo] seem to be the trend with Wellard's MV Ocean Shearer, once again setting a new world record for the largest shipment of live cattle on a single vessel. It sailed from Darwin on 3 December 2011 with 25,817 cattle, easily beating the ship's previous record of 24,683 head set in September earlier this year.

The vessel loaded in both Broome and Darwin, and was loaded by three different exporters, including Wellard. Wellard's consignment of cattle was sourced from a range of individual producers and the company's own floodplain blocks east of Darwin. About 9000 steers and heifers were loaded in Broome and 15,500 cattle were loaded in Darwin. The vessel will unload in the Indonesian ports of Jakarta and Panjang.

There is strong demand from Indonesian importers and consumers, as well as the exporters ability to put the shipment together, with appropriate sized animals, although the onset of the northern Australian wet season was starting to restrict supply. Wellard expects to continue to export cattle during the wet season.

Wellard can be flexible whether to use a larger vessel, or switch to one of the newer, smaller vessels. Previously exports have ground to a halt during the wet season, but the production and transport systems have evolved to ensure it is a year-round trade now. Cattle will be supplied to Indonesia and other South East Asian countries, providing an end market and price competition for cattle which are on either side of the Indonesian 350kg weight limit.

The MV Ocean Shearer, which is the largest livestock vessel in the world, was again loaded at about 80 per cent of her capacity when she sailed, allowing the on-board stockmen and crew to allocate each animal significantly more space than the Australian regulatory standards prescribe. Typically, animal losses on a short voyage to Indonesia from Darwin are extremely low, usually well below 0.5%