SpinOffs

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

Posts about Optimization

Optimization using Dakota in Concepts NREC’s TurboOPT II

Optimization using Dakota in Concepts NREC’s TurboOPT II

By Rachel Moore, Senior Software Engineer
Sep 11, 2020

Automated optimization is becoming more and more common place in the turbomachinery industry today.  What was once exclusively the domain of academics and high-end researchers, has become much more...

Continue
Coupled Optimization of Preliminary Geometry of Two-Stage Low Flow Turbine and Regenerative Rankine Cycle Parameters (Part 2)

Coupled Optimization of Preliminary Geometry of Two-Stage Low Flow Turbine and Regenerative Rankine Cycle Parameters (Part 2)

By Oleg Dubitsky
Dec 20, 2019

This blog article is a follow up for the earlier blog “Coupled Optimization of Preliminary Design Geometry of Low Flow  Steam Turbine with Curtis Stage Layout and Rankine Cycle Parameters”, which...

Continue
Coupled Optimization of Preliminary Design Geometry of Low Flow Steam Turbine with Curtis Stage Layout and Rankine Cycle Parameters

Coupled Optimization of Preliminary Design Geometry of Low Flow Steam Turbine with Curtis Stage Layout and Rankine Cycle Parameters

By Oleg Dubitsky
Dec 6, 2019

Designing turbines for low flow Rankine Cycle for steam is challenging due to their small size, manufacturing restrictions, clearances and cost constraints. Such turbines operate at significant...

Continue
Supercritical CO2, CFD, Alligators & Gladiators – Thoughts & Trends from Turbo Expo 2019

Supercritical CO2, CFD, Alligators & Gladiators – Thoughts & Trends from Turbo Expo 2019

By Mark R. Anderson
Jul 5, 2019

I recently got back from my favorite annual conference: ASME’s Turbo Expo. This year, someone thought it would be a good idea to hold it in Phoenix, Arizona…in the summertime.  While that’s not the...

Continue
Abstracts From Papers Presented at Turbo Expo 2019

Abstracts From Papers Presented at Turbo Expo 2019

By Barbara Shea
Jun 21, 2019

Wow, Concepts NREC had a lot going on at this year's ASME Turbo Expo 2019 in Phoenix, AZ! We held our North American CAE User Group Meeting, spoke to over 200 people at our booth, chaired several...

Continue
How the Design of a Wind Turbine Differs from Other Types

How the Design of a Wind Turbine Differs from Other Types

By Kerry Oliphant
Mar 1, 2019

Wind power generation is rapidly growing worldwide, and with that growth, demand for wind turbine design engineers is also growing.  However, an engineer who has experience designing turbines in most...

Continue
Fluid Phenomena Primer: Energy Versus Temperature, Specific Heat

Fluid Phenomena Primer: Energy Versus Temperature, Specific Heat

By Mark R. Anderson
Feb 8, 2019

As one might expect, the temperature of a substance typically increases as energy is added to it. This is the case with most substances in all phases. The exception is when a substance crosses to a...

Continue
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...

Continue
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...

Continue
Using Curvature Smoothing for Quality Reconstruction of Blade Sections Using Surface Data Tables

Using Curvature Smoothing for Quality Reconstruction of Blade Sections Using Surface Data Tables

By Oleg Dubitsky
Aug 31, 2018

Frequently, there is a need to reconstruct 2D and 3D geometry from reported or measured surface data points. In most cases, the provided surface data include significant amounts of noise for various...

Continue
Yellow Ropes

Yellow Ropes

By Jim Miller
Aug 17, 2018

In the mid 1980’s, while serving in the Canadian Air Force, I had the good fortune, on one of my many adventures, to fly into Sondrestrom Air Base in Greenland. The Base is at the head of a beautiful...

Continue
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....

Continue
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...

Continue
Optimizing the Screw Inducer for a Pump

Optimizing the Screw Inducer for a Pump

By Oleg Dubitsky
Feb 16, 2018

High-efficiency, low-cavitation pumps often require a screw type inducer to treat the inflow to the main radial/mixed flow pump blades. Efficiency and head rise, split between inducer and main pump,...

Continue
Designing Turbomachinery with Optimization – Better Designs in Less Time

Designing Turbomachinery with Optimization – Better Designs in Less Time

By Edward Childs
Mar 2, 2017

Thanks to early pioneering efforts by Dr. David Japikse and his team, Concepts NREC has been at the forefront of turbomachinery design optimization for the past 15 years.

Continue

Subscribe to SpinOffs