We all know by now that no machine is perfect. Turbines have carryover losses, pumps experience cavitation phenomena, and compressors certainly have their fair share of pros and cons. We’re on the hunt for some common design problems – perhaps problems that you have experienced yourself, with centrifugal compressors. We scoured through our technical papers and presentations and searched the web for some. Here’s a list of frequent concerns and questions we ran into: （更多…）
This month we’re hosting the third segment to our Steam Turbine Webinar Series.
Shortening Start-Up Time and Life Prediction of Critical Components
Shortening turbine start-up is a main concern for power machinery operators and manufacturers – is it a concern of yours? （更多…）
Have you checked out AxCYCLE recently?
SoftInWay officially announced the latest features with the release of version 2.3.
With this update, the system’s new tools are available to all users, but waste heat recovery application engineers, particularly in the automotive industry, should take notice. （更多…）
Hello all you hardworking professionals!
We at SoftInWay want to wish everyone a happy, healthy weekend as we draw February to a close – we have all earned this weekend, we’ve worked hard all week. Right?
But the excitement doesn’t stop there. Come Monday morning, we have a new, clean slate to fill with ideas, projects, services and awesome opportunities for you! （更多…）
To decrease losses and increase performance of a turbine, we need to develop special (compound) geometries. Here’s your turbomachinery cheat sheet to advanced 3D blade design!
1. Optimizing plane profiling
There are several positive things that can give proper plane sections profiling: decreasing the profile losses, decreasing secondary losses and satisfying structural limitations. （更多…）
To have a successful application of an ORC system, the availability of an adequate heat source is crucial. In principal every heat-generating process, such as burning fossil fuel, can be taken as a heat source for ORC.
However, the aim is to improve energy efficiency and sustainability of new or existing applications with the focus on waste heat and renewable energy sources.
Three sectors have been identified as potential sources for the application of ORC power generation: （更多…）
You might be able to name a few sources of waste heat, but do you know what distributes the largest content?
Waste heat losses arise both from equipment inefficiencies and from thermodynamic limitations on equipment and processes. （更多…）
Organic Rankine Cycle (ORC) is a technology that can convert thermal energy at relatively low temperatures (80 to 350°C or 175 to 660°F) to actual work that can be further converted into electricity.
It is basically a thermodynamic cycle according to the Rankine principle but specifically uses organic fluids in order to have a boiling point at relatively low temperatures.
The heat is used to make the liquid boil and generate high pressure gases that will then drive equipment able to transmit torque to the shaft and create electrical power.
There are two main types of machines that are able to do this
• Turbine-based system
• Reciprocating piston-based system （更多…）
Cavitation is not welcome in pumps. One of the most problematic effects of cavitation is the reduction in performance, but this is not the only problem! Cavitation can also cause damage to blades and create noise while the pump is working.
Perhaps, the most universal problem caused by cavitation is the material damage that bubbles can cause when they collapse in the vicinity of a solid surface. The problem is complex because it involves the details of a complicated unsteady flow combined with the reaction of the particular blade material. （更多…）
Unlike the centrifugal pump, the performance in axial machines is a function of the action of the blade profiles. Because of this, the main approach in design of axial pumps is focused on blade performance.
Impeller blades of axial flow pumps have a double curvature form at the inlet and at the outlet due to the change in diameter from hub to periphery. Absolute flow before and after the impeller and relative flow along the impeller passage are axisymmetric and potential. There is no radial mixing. Under this condition, each streamline is parallel to the axis of the pump. Fluid passes parallel to the pump axis i.e., along the streamline. （更多…）