New Inertia-Engaged Turbine Air Starter From TDI Improves

See on Scoop.itTurbines Design & Power

DAYTON, OH, September 23, 2013 — TDI announces the introduction of a powerful, new, inertia-engaged turbine air starter designed to improve the reliability of mid size engines (up to 4,882 CID/80 Liters) on marine vessels, mine haul trucks and critical applications like emergency generator sets and fire pumps. The signature characteristic of the vaneless, TurboTwin T50-I is the 100% starting performance it delivers because of the inertia engagement.

 “With inertia-engaged air starters there is never an abutment causing an abandoned start attempt, meaning the design of the air starter assures pinion engagement every time. This translates to 100% starting reliability,” states Dave Rawlins, TDI Senior Product Manager. “We have tens of thousands of inertia-engaged starters in the field. The new Model T50-I completes a mid-range product offering with additional performance in a smaller package than either the Model T100-F or the original 52 Series starters.”

The T50-I was built in response to marine and mining markets which demand the extra reliability of an inertia starter without the need for engagement controls. T50-I fits on mid-sized engines like the Caterpillar 3400, 3500 and C-175; Cummins KTA 38 and 50, and MTU/Detroit Diesel 2000 and 4000 Series. The simple design allows for one part number to cover a wide range of engines and applications commonly found in many large fleets.

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The Prometheus Gas Turbine: Over 90% electrical efficiency in a single cycle

See on Scoop.itTurbines Design & Power

The Prometheus Gas Turbine’s high electrical efficiency makes it very suitable to function as the back bone for a solar and wind powered grid (Gas turbine innovation #energy…

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Crowdfunding for Wind Energy Sets New World Record

See on Scoop.itMicro generation – Energy & Power systems

This week 1700 Dutch households raised EUR 1.3 million in just thirteen hours to buy shares in a wind turbine – setting a new world record for crowdfunding. For the next 12 years, these households will receive their own sustainable energy from the cooperatively owned turbine.  With electricity costs set to rise, the ‘wind-sharers’ will benefit from big annual savings – by anticipating and managing energyneeds.  

Facilitated by Dutch company WindCentrale, the wind shares were sold for EUR 200 each and households bought single shares or blocks of shares. Each share corresponds to approximately 500kWh of electricity per year (the annual average household consumption in the Netherlands is 3500kWh).

Harm Reitsma, founder of Windcentrale, comments: ‘We expected things would move fast, but nobody anticipated the run on the wind-shares that happened yesterday evening. An increasing number of people want to generate their own electricity. Solar panels aren’t always an option and so wind-shares in a remote wind turbine gives everyone the chance to take matters into their own hands and generate their own clean electricity. As a result, interest in our wind-shares has been huge, and continues to rise. A good example of Power To The People!’

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Supercritical CO2 turbine being developed for SMRs | The Energy Collective

See on Scoop.itHeat energy recovery technology

Carbon Dioxide is good for a lot of things like adding fizz to your soft drinking in its gaseous form and keeping food cold in its solid form as “dry ice.”

What many people do not know is that the gas is also useful in its lesser known liquid form. You won’t see it in nature since it takes five atmospheres of pressure at slightly higher than room temperature, 31C, to take it to a super state. Because of its physical properties as a liquid, it has become a target fluid of opportunity to run turbines and thus make electricity. Steven Wright, Ph.D., who recently retired from Sandia National Laboratory (SNL), has set up a consulting company called Critical Energy LLC to bring this technology to a commercial level.  The objective of using supercritical CO2 (S-CO2) in a Brayton-Cycle turbine is to make it much more efficient in the transfer of heat. Wright points out that a steam turbine is about 33% efficient, but that an S-CO2 turbine could be as high as 48% efficient, a significant increase. 

“There is a tremendous amount of scientific and industrial interest in S-CO2 for power generation. All heat sources are involved including solar, geothermal, fossil fuel, biomnass, and nuclear.” Separately, Wright said that to use the turbines with small modular reactors (SMRs), they would have to be evaluated as safety-related equipment by the NRC or any nuclear safety agency elsewhere. 

He wants to see a revenue stream from non-nuclear applications before spending money on the cost of a regulatory process that covers equipment for nuclear power stations. 
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