In the southern part of China, due to the rich rainfalls and favourably topographical landscape, there is abundant hydraulic energy resources contained in the countless small streams and rivers in the mountainous and semi-mountainous areas. Besides the small hydro power generation which transfers the potential energy to the electrical power, there is other technology available to utilise the potential energy directly for the water lifting in the irrigation and decentralised do-mestic water supply in the village level. This paper introduces the basic principle of the hydraulic ram op-eration and describes the applicable opportunities for the hydraulic ram.
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