# \#efficiency

**URL:** https://www.queseas.com/tag/efficiency/136.md

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## [Efficiency of centrifugal pumps](https://www.queseas.com/t/efficiency-of-centrifugal-pumps/625)

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**Author:** [@Paraschos.Liadis](https://www.queseas.com/u/Paraschos.Liadis)\
**Replies:** 4\
**Last updated:** [May 9, 2025, 11:04am UTC](https://www.queseas.com/t/efficiency-of-centrifugal-pumps/625 "2025-05-09T11:04:57Z")

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Centrifugal pumps need a certain backpressure to operate more efficiently and reach their full capacity. However, the physics behind this are not very straightforward. Could anybody share a simplified / intuitive explana…

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## [Gabrielli - Von Karman diagram](https://www.queseas.com/t/gabrielli-von-karman-diagram/778)

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**Author:** [@Surcouf\_Renard](https://www.queseas.com/u/Surcouf_Renard)\
**Replies:** 0\
**Last updated:** [June 8, 2023, 7:51pm UTC](https://www.queseas.com/t/gabrielli-von-karman-diagram/778 "2023-06-08T19:51:15Z")

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Have you ever heard of the Gabrielli - Von Karman diagram? It was first introduced in 1950 by the famous aerodynamicists Gabrielli and Von Karman in their famous paper “What price speed”. The diagram plots energy inten…

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## [A Practical Guide to the Selection of Energy Efficiency Technologies for Ships - Global Industry Alliance to Support Low Carbon Shipping](https://www.queseas.com/t/a-practical-guide-to-the-selection-of-energy-efficiency-technologies-for-ships-global-industry-alliance-to-support-low-carbon-shipping/493)

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**Author:** [@Stela.Spiraj](https://www.queseas.com/u/Stela.Spiraj)\
**Replies:** 0\
**Last updated:** [October 18, 2022, 12:22pm UTC](https://www.queseas.com/t/a-practical-guide-to-the-selection-of-energy-efficiency-technologies-for-ships-global-industry-alliance-to-support-low-carbon-shipping/493 "2022-10-18T12:22:24Z")

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Hello Quesenians, Here is helpful guidance on considerations and operational practices when selecting energy efficiency technologies for ships published by the Global Industry Alliance to Support Low Carbon Shipping (Lo…

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## [Efficiency of fuel oil purifiers](https://www.queseas.com/t/efficiency-of-fuel-oil-purifiers/299)

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**Author:** [@Surcouf\_Renard](https://www.queseas.com/u/Surcouf_Renard)\
**Replies:** 4\
**Last updated:** [August 2, 2022, 2:14pm UTC](https://www.queseas.com/t/efficiency-of-fuel-oil-purifiers/299 "2022-08-02T14:14:03Z")

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How can the efficiency of fuel oil purifiers be increased?