Through-Flow Modeling: An Overview

by Morgan Williams on Mar 22, 2017 4:08:25 PM

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

Design Elements that Affect Machining Time in Turbomachinery

by Mark R. Anderson on Mar 9, 2017 2:55:26 PM

The primary options for laying out an impeller (i.e. flank milled versus point milled, open versus covered impellers, integral versus welded shrouds) determine the basic manufacturing process (see Manufacturing Methods Used for Turbomachinery for more info).  Beyond the basic layout, there are several other details of the design that can significantly affect manufacturability. They include: 

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.

Manufacturing Methods Used for Turbomachinery

by Mark R. Anderson on Feb 22, 2017 12:42:53 PM

There are two dominant manufacturing methods used to produce turbomachinery parts – Casting and 5-axis machining. This blog will explore some of the applications and restrictions of these two methods.

Designing Gas Turbines - It Really Requires Rocket Science

by Barbara Shea on Feb 16, 2017 3:31:58 PM

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 thermal stresses on the turbine blade materials. This requires that the blades be cooled. The most common way of doing this is using cooled air extracted from the engine’s compressor. Sadly, this air extraction decreases the thermal efficiency of the engine.

Supercritical CO2 cycles have the potential to significantly improve efficiency and reduce emissions in power generation. However, the unique fluid dynamic properties of supercritical CO2 that enable these higher efficiencies also complicate the design and layout of the system. This is particularly true with regard to the systems turbomachinery components.  This is because of the highly non-linear properties of CO2, which pose significant difficulties in modeling.  Today’s commercial software is not optimized to help designers working on these types of systems.

ASME’s Turbo Expo technical conference is THE industry event for bringing together experts from around the world to talk about the latest innovations in turbine technology.  Last year’s event in Seoul, was no exception. Our experts, including Dr. David Japikse, CEO and Founder; Peter Klein, Director of CAM Software and Associate Corporate Fellow, Mark Anderson, Chief Technology Officer, and Eric Krivitzky were there to present three papers.

Current Issues Facing the Global Pump Industry

by Robert Platt on Nov 3, 2016 4:10:30 PM

The Global Pump Industry

There are many challenges facing the global pump industry, starting with defining its size. Estimates from the various regions of the world are just that – estimates – and reliability varies from region to region. Added to that is the disparity between exactly which types of pumps are included in these regional estimates. Nonetheless, most credible sources put the industry at $40-50 billion per year, with low growth rates in the aggregate that will vary by region. Regardless of its size or makeup, there are some common issues facing the industry: continued competition from globalization, developing innovative solutions to meet mandated efficiency guidelines, and scarcity of available technical talent.

Topics: pumps

Sysyphean Task of Energy Storage

by Francis A. Di Bella, P.E. on Oct 7, 2016 12:59:38 PM

Sisyphus in Greek Mythology was condemned to eternally roll a large rock up a hill only to watch it crash to the bottom.  The myth lives on today with the term Sisyphean that refers to tasks that are never ending, thankless and frustrating.

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