Suction recirculation is caused by flow incidence angles that are significantly dissimilar to the inlet vane geometry. The stalled area on the inlet vane produces a hydraulic instability, resulting in the formation of fluid swirl. Large inlet areas magnify the formation of fluid swirl as the fluid has enough “room” to recirculate. When severe, the […]
This article will compare the two sections of the ANSI/NEMA MG 1-2021 Motors and Generators Standard¹ that address both applying general purpose induction motors in adjustable speed applications as well as the requirements for machines built specifically to operate on an inverter power source (variable speed drive). This paper is not meant to be an […]
The term Autonomous Maintenance is most known as one of the eight pillars in TPM – Total Productive Maintenance. The main idea in Autonomous Maintenance is that operators are responsible for performing minor maintenance tasks. You may also have heard of terms such as Operator Essential Care, Operator Based Maintenance, Operator Based Reliability, etc. in […]
Coupling Corporation of America designs and delivers the broadest range of products for industries from Aerospace to Plastics to Renewable Energy. Learn more about all the industries CCA’s products are used in.
Variable speed motor primer part 2 This paper is the second of a series intended to assist persons involved in specifying, purchasing or applying variable speed motors. A question-and-answer format are used to provide the reader an opportunity to focus on topics of interest.
As the world moves toward a low-carbon economy, water will play an increasing role in supporting clean technologies. That makes it critical for energy transition initiatives to take into account their impacts on water consumption and how organizations will ensure the proper management of water resources. At Flowserve, we’re committed to safeguarding water as a […]
Moving industrial fluids from one point to another is essential to the health of the worldwide economy. There are a variety of methods to transfer these fluids, with the most common being by truck and rail. The process of loading and unloading tank trucks and railcars occurs daily thousands of times at industrial sites across […]
This paper is the first of a series intended to assist those persons involved in specifying, purchasing or applying variable speed motors. A question-and-answer format is used to provide the reader an opportunity to focus on topics of interest.
Overview Maximum energy efficiency is the cornerstone of a long and growing list of building certification initiatives such as LEED, Green Globes, Zero Energy Buildings, Living Building Challenge, and Energy Star for Buildings. And variable frequency drives (or VFDs) are a key tool in achieving this energy efficiency. By allowing motors to run at less […]
Farm to Fork strategies focus on making value chains ethical, healthy and sustainable. The poultry and egg processing industries are facing unprecedented challenges. Energy and raw material prices are increasing, while consumers are demanding ever lower prices. Meanwhile, the global population continues to grow. The need to improve chicken welfare, maintain a sustainable environment and […]
In the oil and gas industry, hydraulic power recovery turbines (HPRTs) capture energy in hydrocrackers that would otherwise be wasted to efficiently drive a charge pump, compressor or generator to power other equipment or operations. The concept is not new. For decades, standard centrifugal pumps have been run in reverse to convert hydraulic energy in […]