Posts Tagged ‘cavitation’

Sulzer is optimizing pump reliability and performance

Thursday, September 20th, 2018 von admin

The offshore industry faces two main challenges: maximizing production within the limits of the reservoir, and minimizing operational costs while maintaining the safety of the platform. Pumps form one of the main groups of equipment that influence the outcome of both challenges and they require expert knowledge to ensure continued reliability and performance.

Murray Wilson, Sulzer UK argues that in each case, industry engineering expertise and commercial innovation are required to deliver these goals. Furthermore, the capital expenditure to improve reliability is most often far outweighed by the costs incurred by an unexpected failure and the subsequent costs of lost production. By taking a proactive approach and involving an expert maintenance provider, platform operators can deliver significant benefits to the business in the long term.

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Bungartz: A functional pump model at Chemtech, Mumbai

Friday, January 13th, 2017 von admin

Chemtech World Expo – February 14-17, 2017 – is one of the largest events for the chemical industry. 600 exhibitors from 20 countries expect up to 40,000 visitors. At the same time eight international conferences and about 150 speakers are offered. In the German pavilion, the German community stand, organized by the VDMA, the company Bungartz will present the concepts of its problem-solver pumps at stand C6A, which also have a high intrinsic safety:

  • Wear and corrosion resistant pumps for the fertilizer industry
  • Pumps with hydrodynamic shaft seal
  • Continuously dry running magnetic driven pumps for liquids with large solids contents
  • Cavitation-free pumps with an NPSH value <0.1m

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CD-Adapco: Analyzing complex pump hydraulics

Tuesday, October 27th, 2015 von admin
Figure 1: Flowpath geometry of the pump (left) and computational mesh in Star-CCM (right) along center plane

Figure 1:
Flowpath geometry of the pump (left) and computational mesh in Star-CCM (right)
along center plane

Mechanical Solutions Inc. (MSI), headquartered in Whippany, New Jersey, specializes in fluid machinery design, fluid dynamic analysis, mechanical design and analysis. In the energy industry, MSI focuses on analysis, testing and troubleshooting of all kinds of rotating, reciprocating and turbomachinery, using sophisticated analysis and testing tools. These specialists are using Star-CCM, an industry-leading simulation package to tackle design challenges in water pumps.

Major design challenges of water pumps include the unsteadiness of the flow, cavitation and rotating machinery. Star-CCM offers features that can successfully tackle these difficult physics while offering a streamlined, robust numerical design process. Geometry generation, meshing, solving, post-processing and optimization can all be done in an efficient workflow.

Features like the unsteady flow solver, unsteady cavitation model, Rigid Body Motion (RBM) for rotating domains, automated unstructured meshing for complex geometry and parallel processing capability offer the ability to explore multiple water pump designs in an economical manner. The system allows designers to easily predict pump performance at design and off-design points and avoid damaging effects of cavitation and erosion.

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