David Effa and Dr. Abiy Awoke
Case revision date: 
8 Pages (Case study)

Basic components of Hydram PumpBasic Metal and Engineering Industries Agency (BMEIA) is located in Addis Ababa, Ethiopia. The agency aspires to be a center of excellence for the Basic Metals and Engineering Industries sub-sector with respect to research and development activities. BMEIA has developed a range of products including machinery, plastic moulds, and press tools as customized systems or research activities. In addition, the agency develops suitable technologies for rural communities, in particular, products related to water supply systems. One such product is the hydraulic ram (Hydram) pump. The Hydram is used to supply water for rural communities, mainly for livestock and irrigation purposes. After discovering and refurbishing a station of Hydram pumps in Ziway, BMEIA proposed to supply water for a small village (population of about 500 people) from a stream of water using a Hydram pump.  The Hydram pump components must be designed to specifications generated from from the results of a site survey and an environmental assessment.

Learning objectives: 

This case helps to apply Bernoulli’s and other fluid mechanics equations in system development. It planned to teach engineering design process beginning with problem identification, conceptual design, preliminary design, and detail design including cost estimation and selecting manufacturing methods.

Key words: 
Bernoulli's equation; Pump flow analysis; Pump flow cycle; Fatigue; Manufacturing
CEAB attributes: 
Module 01 - Case Study
Module 02 - Hydram pump background
Module 03 - Flow Analysis (Restricted to educators only)
Module 04 - Pump Cycle Model Analysis (Restricted to educators only)
Module 05 - Fatigue Considerations (Restricted to educators only)
Module TN - Teaching Note (Restricted to educators only)

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