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Development of a modified low-cost pitot tube for measuring pump discharges

By: Contributor(s): Material type: TextTextPublication details: 1998Subject(s): DDC classification:
  • 1998-102625
 In: Lahore (Pakistan). IIMI Pakistan National Program. Jun 1998. 68 p IIMI Pakistan report no. R-55Summary: There has been a proliferation of wells owned by individuals in South Asia and China, and the number of pumps installed in the Indian Subcontinent to lift water from groundwater, rivers, canals or reservoirs now number in the millions. In Pakistan, by 1986, there were 250,000 tubewells with 80 percent in Punjab Province; today the total number of tubewells is estimated at 400,000 or more. The development of a modified low cost Pitot Tube for measuring pump discharges was envisioned as a device that could easily be fabricated at low cost so that it would have broad application throughout the world, but with particular emphasis on developing countries. The initial studies were undertaken by the principal author while on assignment for IIMI in Sudan from 1989-1995. This was followed by laboratory experiments in Paksitan from late 1995 until early 1998. This report describes the significant contribution made in developing an economical devise for measuring pump discharge that is accurate within 2-3 percent
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21 tables, 24 fig., 16 ref IIMI, POB 2075 Colombo - Sri Lanka. E-mail: r.desilva@cgnet.com

There has been a proliferation of wells owned by individuals in South Asia and China, and the number of pumps installed in the Indian Subcontinent to lift water from groundwater, rivers, canals or reservoirs now number in the millions. In Pakistan, by 1986, there were 250,000 tubewells with 80 percent in Punjab Province; today the total number of tubewells is estimated at 400,000 or more. The development of a modified low cost Pitot Tube for measuring pump discharges was envisioned as a device that could easily be fabricated at low cost so that it would have broad application throughout the world, but with particular emphasis on developing countries. The initial studies were undertaken by the principal author while on assignment for IIMI in Sudan from 1989-1995. This was followed by laboratory experiments in Paksitan from late 1995 until early 1998. This report describes the significant contribution made in developing an economical devise for measuring pump discharge that is accurate within 2-3 percent

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