Why Wind Turbines Explode
During the recent storms that hit Scotland a £2 million 328 foot tall wind turbine exploded and rained shrapnel and fire on the surrounding area, all caused by a 50mph wind.
As usual the so called “Renewable Energy” experts are calling it a freak accident with only a 1% chance of the accident happening.
There are 2 serious problems that afflict wind turbines, blade failure and gearbox failure, the latter failure usually results in the wind turbine catching fire; it is a problem that the renewables industry has long been aware of:
Renewable energy experts have dismissed an incident where a wind turbine caught fire in gale force winds as a “freak” occurrence.
The 328ft (100m) tall turbine, at Ardrossan Wind Farm, near the A78 in North Ayrshire, was destroyed after it exploded into flames which could be seen “far and wide”.
Charles Anglin, of RenewableUK, the trade and professional body for the UK wind and marine renewables industries, stressed that wind turbines were regularly subjected to “some pretty tough conditions” without problems.
He said: “There’s some pretty freak weather going on and any piece of large power generating equipment can be subject to freak accidents or mechanical faults.
So lets consider the new fear story from the Church of Climatology, Anthropogenic Global Warming is allegedly going to cause more extreme weather events and one of the ways to combat their belief in man made climate change is the use of low carbon methods of electricity generation, so the big question is how will wind turbines be of any use in world which is going to be subject to extreme weather events for the forseeable future?
There are long standing problems with the gearbox in wind turbines as Renewable Energy World reported:
The gearbox’s reputation for a high failure rate is linked to the extreme engineering challenge that gearbox technology faces in wind applications, and the difficulty in properly assessing the loads – and in particular the non-torsional loads that pass through the gearbox – and how these affect bearings and gears. Some manufacturers have chosen to move to direct drive to reduce the number of moving parts in the wind turbine more exposed to wear. But this has led to wind turbine specific generator designs that are usually more expensive and often come together with a long-term maintenance contract with the Original Equipment Manufacturer (OEM), which does not necessarily meet the operations and maintenance (O&M) concept of flexibility expected by customers.
Of course, much has been done in the last decade to design and manufacture gearboxes ensuring a high quality, often with associated with over-engineering and increased cost. Many efforts are also being put in to performing proper monitoring and maintenance to detect and prevent any avoidable damage. These efforts have limited gearbox breakdowns in infancy, and sometimes allowed some maintenance activities to be initiated earlier than before, but they have not helped resolving a key cause of the problem: the rotor support concept, and how it distributes loads among the wind turbine structure and the gearbox.
The gearbox in each turbine holds between 200 – 500 gallons of fossil fuel sourced oil and so far no company has come up with a lubricant that can cope:
To date no gear oil has been invented to withstand the pressures produced within these transmissions. Recently, the U.S. government gave Dow-Corning a big grant to work on it. Previously, many others had tried and failed.
The gearbox is barely up to the job, and there is no lubricant currently available that can effectively lubricate the gearbox and wind turbines are supposed to provide secure and reliable energy, the big question is how?
In high winds the turbines are supposed to feather, in the same way a propeller on an aircraft is feathered if there is an engine failure, essentially the blades should cease to rotate.
The shutdown is normally performed by ‘feathering’ the turbine blades so they do not turn. “In general the turbine blades will pitch out in high winds, keeping the turbines in idle mode,” confirms a spokesman for the turbine’s manufacturer, Vestas of Aarhus, Denmark.
Wind turbine fires are far from freak accidents as these video clips show:
in this clip a Danish turbnine suffers a break failure in a high wind
The Scottish wind turbine explosion was not a freak accident, the wind industry know their bird choppers have a major design defect, until the policians we elect put a stop to this stupidity the wind industry will continue to sell a sub standard product, all the while grabbing huge sums of tax payers money in Green taxation and subsidy.
In Britain there are plans to build another 30,000 of these useless symbols of the Great Global Warming Scam at a cost of £2 million per turbine.
You can gues who will be paying for this stupidity.
Posted on December 13, 2011, in Anthropogenic Global Warming, Church Of Climatology, Climate Change, Climate Disruption, Climategate, Climategate 2, COP17, Green Lies, Green Taxation, Renewables and tagged Wind Farms, Wind Turbine. Bookmark the permalink. 18 Comments.