SpinOffs

A blog on what's new, notable, and next in turbomachinery

Posts about Gas Turbines

7 Turbomachinery Themed Valentine’s Day Cards – Which is Your Favorite?

7 Turbomachinery Themed Valentine’s Day Cards – Which is Your Favorite?

By Barbara Shea
Feb 8, 2019

Valentine’s Day is February 14, and while some cynics refer to it as a “Hallmark holiday”, most people commemorate the day in some way. One of the biggest challenges is finding a card that perfectly...

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20 Great Gifts for Engineers from $10 to $2 Million

20 Great Gifts for Engineers from $10 to $2 Million

By Barbara Shea
Nov 23, 2018

Gifts for Engineers can usually be segmented into a few categories: Things you have to put together, science fiction, gaming, new technology, and witty phrases printed on stuff. A Google search of...

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Gas Turbine Automobiles - Yesterday, Today and Tomorrow

Gas Turbine Automobiles - Yesterday, Today and Tomorrow

By Francis A. Di Bella, P.E.
Nov 2, 2018

Credit for the first gas turbine engine used in flight is given to Dr. Frank Whittle.  Dr. Whittle maintained a steadfast commitment to developing gas turbine-powered aircraft in the midst of World...

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Investing in Designing Gas Turbines for Power Generation

Investing in Designing Gas Turbines for Power Generation

By David Teal
Sep 14, 2018

Gas turbines (or GTs) are important in the power generation sector due to their high efficiency, cleaner emissions and faster startup than old coal-powered plants. These power generators can range...

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A Small Taste of Two Papers from Turbo Expo 2018 in Norway

A Small Taste of Two Papers from Turbo Expo 2018 in Norway

By Barbara Shea
Jun 14, 2018

The 2018 ASME Turbo Expo in Lillestrøm, Norway was, as always,  a smorgasbord of papers and presentations on the latest and greatest ideas in turbomachinery and gas turbines. Two of our favorites...

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Film Cooling In Turbines

Film Cooling In Turbines

By Song Xue
May 24, 2018

Turbine inlet temperature is one of the most critical parameters in the Brayton cycle of gas turbine engines. One way to increase the cycle efficiency is to increase the turbine inlet temperature, as...

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Optimizing the Radial-to-Axial Duct Geometry for a Gas Turbine Radial Compressor Impeller

Optimizing the Radial-to-Axial Duct Geometry for a Gas Turbine Radial Compressor Impeller

By Oleg Dubitsky
Apr 13, 2018

Many gas turbines with radial compressors utilize a radial-to-axial inlet duct upstream of the first compressor stage. Aside from the fact that flow in the duct generates aerodynamic losses, the flow...

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A New Application for Air Brake Dynamometers?

A New Application for Air Brake Dynamometers?

By Francis A. Di Bella, P.E.
Jan 12, 2018

My gym has been crowded with a lot of new people these past couple of weeks. It happens every year in January as people try to stick to their New Year’s Resolution to exercise more. I don’t mind the...

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Getting Carried Away (Literally) with a Hobby - How I Ended up with a Helicopter

Getting Carried Away (Literally) with a Hobby - How I Ended up with a Helicopter

By Adam Weaver
Nov 22, 2017

How did I get from not knowing (or caring) anything about home-built aircraft to owning a gas turbine powered helicopter? As you might imagine, it’s complicated.

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Optimization of Cycle Parameters, Fuel Consumption, and Weight of a Turboshaft Engine Using 1D Design Tools

Optimization of Cycle Parameters, Fuel Consumption, and Weight of a Turboshaft Engine Using 1D Design Tools

By Oleg Dubitsky
Jun 1, 2017

New engine development is a costly endeavor and making the right decisions early in the engine design is extremely important. It requires multi-disciplinary consideration of the engine thermodynamic...

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A Cross-Over SCO2 System Application

A Cross-Over SCO2 System Application

By Francis A. Di Bella, P.E.
May 18, 2017

The 2015 Paris Climate Talks (COP21) were successful in achieving consensus from 196 countries that climate change must be given significant attention. There was a particular focus on the release of...

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Designing Gas Turbines - It Really Requires Rocket Science

Designing Gas Turbines - It Really Requires Rocket Science

By Barbara Shea
Feb 16, 2017

Engineers who design aircraft engines face a conundrum. Gas turbines in aircraft engines have to operate at very high temperatures for thermal efficiency and power output. These high temperatures put...

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