SpinOffs

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

Posts about Agile Engineering Design System

Why are Scoping Studies Necessary for Your Turbomachinery Project?

Why are Scoping Studies Necessary for Your Turbomachinery Project?

By Daniel V. Hinch, Corporate VP Sales and Marketing, Concepts NREC
Feb 19, 2021

At Concepts NREC we do a lot of projects from ‘clean sheet’ all the way through manufacturing of prototype hardware.   In fact, these types of projects are among the favorite of the engineering staff...

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In Thermodynamics: “What Goes Around-Comes Around” is a Good Thing

In Thermodynamics: “What Goes Around-Comes Around” is a Good Thing

By Francis A. Di Bella, P.E.
Jun 28, 2019

When discussing the efficiency of transforming one form of energy to another, circularity is the way to go. Anyone who has spent even a little time studying engineering thermodynamics knows that the...

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What’s the Difference Between a Fan, a Blower, and a Compressor?

What’s the Difference Between a Fan, a Blower, and a Compressor?

By Dan Hinch
Jun 6, 2019

Turbomachinery equipment is generally segmented based on whether it extracts energy (e.g., turbines) or adds energy (e.g., pumps and compressors). The addition of energy is usually used to compress...

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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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Flank Milling - How Hard Can It Be?

Flank Milling - How Hard Can It Be?

By Peter Klein
Jan 4, 2019

 When designing compressors, engineers often use ruled-surface blades with the goal of making a shape that’s easily manufactured on a 5-axis machine.  Theses blades can be quickly machined in one...

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The Wright Stuff for Turbomachinery

The Wright Stuff for Turbomachinery

By Dr. David Schowalter
Dec 14, 2018

As an engineer, you probably have at least some familiarity with the story of how two bicycle mechanics, named Orville and Wilbur Wright, invented controlled-powered flying machines at Kitty Hawk,...

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Reverse Engineering - Going from Part to Art

Reverse Engineering - Going from Part to Art

By Sharon Wight
Dec 7, 2018

Have you ever needed to know the exact geometry of a compressor that has been running for years in your process plant? Perhaps you need to analyze how it would perform if the process fluid had to be...

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There is No Such Thing as a Design Point

There is No Such Thing as a Design Point

By Dr. Peter Weitzman
Oct 26, 2018

Most turbomachines need to operate across a range of fluid flow rates and speeds. This is obvious in transportation applications where gas turbine engines and turbochargers need to operate at all of...

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Designing Turbomachinery is like Solving a Rubik's Cube

Designing Turbomachinery is like Solving a Rubik's Cube

By Barbara Shea
Sep 21, 2018

I think we can all agree that designing turbomachinery is hard. There are just so many moving parts (pun intended) in the design process, and they are all interconnected.  When you change the blade...

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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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Are You a Smooth Operator? Different Approaches to Collision Avoidance in CAM Software

Are You a Smooth Operator? Different Approaches to Collision Avoidance in CAM Software

By Peter Klein
Aug 9, 2018

 

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The Challenges & Cures of CFD Solution Failures

The Challenges & Cures of CFD Solution Failures

By Mark R. Anderson
Aug 3, 2018

Computational fluid dynamic analysis (CFD) has become a standard part of the turbomachinery design process. Within Concepts NREC’s Agile Engineering Design System, FINE/Turbo, from our Partner NUMECA...

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Is Laboratory Testing Still Needed for Turbomachinery Development?

Is Laboratory Testing Still Needed for Turbomachinery Development?

By Andrew Provo
May 17, 2018

Historically, testing has played a critical role in the turbomachinery design process and multiple rounds of “design, test, analyze, repeat” were not uncommon.  Today however, the industry seems to...

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Great Designs Deserve to Shine

Great Designs Deserve to Shine

By George C. Zitka, P.E.
May 4, 2018

If you are a turbomachinery engineer, you know you can spend days, weeks, or even months analyzing various design iterations, looking for the optimal choice for the application.  When you go to...

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Preliminary Sizing of Supersonic Turbines with Partial Admission for Best Performance Using AXIAL™

Preliminary Sizing of Supersonic Turbines with Partial Admission for Best Performance Using AXIAL™

By Oleg Dubitsky
Apr 27, 2018

Many energy recovery, drive cycles (Organic and Steam Rankine cycles) and rocket propulsion cycles require the use of a turbine that operates at low volumetric flow and high-pressure ratio....

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Leveraging Your Legacy Designs

Leveraging Your Legacy Designs

By George C. Zitka, P.E.
Feb 9, 2018

Engineers, by their very nature, like to design new things. To us, there is an undeniable appeal to creating something no one has ever seen before. However, there are compelling reasons to leverage...

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Why You Need CAE & CAM Software Specialized for Turbomachinery

Why You Need CAE & CAM Software Specialized for Turbomachinery

By Dr. Peter Weitzman
Feb 2, 2018

Concepts NREC just had its most successful year ever in software sales. Why? It really comes down to two things, the first is our team, we have some incredibly talented people developing our software...

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Robot Engineers?

Robot Engineers?

By Barbara Shea
Dec 14, 2017

Wouldn’t it be ironic if the profession that is creating all the robots was eventually replaced by them? It could happen. Engineering is all about applying laws, measurements, facts, and analysis to...

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Getting Something for Nothing – Extending Compressor Operating Range Without an Efficiency Penalty

Getting Something for Nothing – Extending Compressor Operating Range Without an Efficiency Penalty

By George C. Zitka, P.E.
Dec 8, 2017

Can you really get something for nearly nothing? In many cases, a properly-designed compressor casing treatment can extend compressor operating range without having to pay an appreciable efficiency...

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Getting to the Root Cause of a Catastrophic Impeller Failure

Getting to the Root Cause of a Catastrophic Impeller Failure

By George C. Zitka, P.E.
Oct 27, 2017

Finding the root cause of a failure by narrowing down multiple overlaid symptoms can be a long and tedious process—and very often the true underlying problem is not what one might expect by a casual...

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What Next for Wider Flow Range Centrifugal Compressors?

What Next for Wider Flow Range Centrifugal Compressors?

By Dr. Colin Osborne
Sep 21, 2017

Flow range is an essential consideration in the design of any centrifugal compressor system, regardless of the application. Adequate flow range is necessary, not only to assure that various...

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Design Tradeoffs and Compromises in Integrally Geared Turbomachinery

Design Tradeoffs and Compromises in Integrally Geared Turbomachinery

By Andrew Provo
Jul 21, 2017

When designing turbomachines, the quality of the final product can often be improved by implementing a holistic approach to the engineering process. As with many complex mechanical systems there are...

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How to Design a Pump for Reduced NPSH

How to Design a Pump for Reduced NPSH

By Kerry Oliphant
Jun 20, 2017

Cavitation occurs in a pump when the bulk liquid pressure starts to approach the vapor pressure of the liquid, and cavities of vapor form as seen in Figure 1.  This figure shows the inlet of a...

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Turbomachinery is the Key for Sustainable Development

Turbomachinery is the Key for Sustainable Development

By Thiago Ebel
Jun 15, 2017

While common sense might lead one to conclude otherwise, increasing energy consumption worldwide is a good thing. Higher per capita energy consumption is associated with a higher quality of life:...

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Converting Chiller Compressors to the New Generation of Low GWP Refrigerants

Converting Chiller Compressors to the New Generation of Low GWP Refrigerants

By Dan Hinch
Jun 8, 2017

The chiller industry is under tremendous pressure to convert to new, more environmentally friendly refrigerants.  This change is driven by new global regulations including, the Montreal Protocol and...

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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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Advantages of an Integrated, Turbomachinery Specific FEA  System

Advantages of an Integrated, Turbomachinery Specific FEA  System

By John Keeling
May 3, 2017

The biggest reason to use an integrated turbomachinery design and analysis environment is speed. Basically, having everything you need in one place makes a big difference!

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Improving the Efficiency of Supercritical CO2 Power Systems

Improving the Efficiency of Supercritical CO2 Power Systems

By Francis A. Di Bella, P.E.
Apr 27, 2017

The contemporary gas turbine engine, developed in the 1940’s by Sir Frank Whittle (pictured), is still considered to be among the most efficient, external combustion engines. Today, there is a...

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The Advantage of Designing Axial Blades Using the Curvature Control Method

The Advantage of Designing Axial Blades Using the Curvature Control Method

By Oleg Dubitsky
Apr 6, 2017

Arbitrary blade section profiling is an essential part of designing high performance axial turbines and compressors. In most cases such blade section models are formed by hybrid use of arbitrary...

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How Manufacturing Methods Impact Performance 3 Examples

How Manufacturing Methods Impact Performance 3 Examples

By Mark R. Anderson
Mar 29, 2017

Some of my other blogs have touched on how important it is to consider manufacturing methods during the design phase. This one will show exactly how manufacturing methods impact performance. We will...

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Throughflow Modeling: An Overview

Throughflow Modeling: An Overview

By Morgan Williams
Mar 22, 2017

This Blog post gives a brief outline of the throughflow method for turbomachinery flows and presents the calculated performance results of a Single-Stage Axial-Flow Compressor validation.

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