Generating renewable power from water hammer pressure surges.

Roberts, A. D., Thomas, B., Sewell, P. and Hoare, E., 2018. Generating renewable power from water hammer pressure surges. Renewable Energy. (In Press)

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DOI: 10.1016/j.renene.2018.09.006

Abstract

Since the 18th century, hydraulic ram pumps have harnessed the water hammer effect to move water in a renewable and sustainable manner. This article demonstrates that, by substituting the pressurised water delivery system for an energy conversion mechanism, the operating principles behind hydraulic rams can also be adopted for the purposes of providing renewable energy. An experimental study involving a small scale model device driving a piston-crank mechanism is presented to demonstrate the concept. The peak mechanical efficiency of the test rig was found to be 25.7%, with the time-averaged efficiency varying from 0.3 to 1.7%. Potential applications for a refined version of the technology, namely pico-scale hydropower generation and energy recovery from surge tanks, are also discussed.

Item Type:Article
ISSN:0960-1481
Uncontrolled Keywords:Pico hydropower; Water hammer; Hydraulic ram pump;Water hammer energy system; Hydraulic engine; Surge tank
Group:Faculty of Science & Technology
ID Code:31354
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:12 Oct 2018 13:53
Last Modified:12 Oct 2018 13:56

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