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Universidad Acción Pro Educación y Cultura UNAPEC CAFAM Campus

Department of Electricity and Electronic Engineering

VLH Turbines Technical Advantages Vs Traditional Turbines
By Angel Martinez Miguel Bello Walther Parra 2005-1147 2003-1489 2006-0634

For: Professor E. Contreras Course: TEC396, Section 1 Date: July 29, 2009

VLH Turbines Technical Advantages Vs Traditional TurbinesBy Angel Martínez, Miguel A. Bello Paniagua, Walther Parra Soto, UNAPEC University

Abstract
Small hydro systems harness the power of falling water to provide electricity. This electricity can be sold onto a grid or used at remote locations where there is no grid power.

Small hydro systems are a very reliable and well-understood power source. Hydroelectricity is the most mature of therenewable energy technologies, having been in use for over one hundred years. Over 19% of the world’s electricity is generated by hydro projects, with countries as diverse as Brazil, Canada, China, Norway, and the USA having significant hydroelectric developments. While most of the world’s hydroelectricity comes from large hydro projects, small hydro projects benefit from the knowledge andexperience associated with the large hydro projects. They can generate large amounts of electricity with very low operating costs. The majority of the costs of a small hydro project stem from up front expenses in construction and equipment purchase. Once the development is in place, the project can provide electricity with modest operation and maintenance expenditures for 50 years or longer.

A gridis an interconnected web of generating stations and transmission facilities that provides electric power to a number of distributed consumers. Small hydro projects can be integrated into central or isolated grids. A central grid is one that covers a vast geographical area, with many generators and millions of consumers. The Dominican electricity grid is one example. An isolated grid is asmaller network of generation and distribution facilities, not interconnected with the central grid that supplies electricity to a limited area, such as a remote community.

The deployment of this very low head hydro potential is in general technically feasible but economically unviable largely because the associated insurmountable civil works costs. Therefore new approaches and

technologiesto significantly lower the civil costs and balance the overall project costs are essential to pave the way to harness the very low head hydro potential. In this context, a Very Low Head turbine (VLH) project is under development through an internationally cooperated project which combines the joint effort of French and Canadian partners. The VLH turbine was designed in particular to equip verylow head sites for head range between 1.4 and 3.2 meters.

VLH Turbines Technical Advantages Vs Traditional Turbines 
   

Table of contents 
1  2  Introduction  ...................................................................................................................... 6  .Majority ............................................................................................................................. 8  2.1  2.2  2.3  2.4  2.5  2.6  3  Working Principles Of A Hydropower Plant  ........................................................ 8  . Power Calculation ................................................................................................. 10  How to Identify a PotentialSite ........................................................................... 10  Measuring Head .................................................................................................... 11  Measuring Water Flow  ......................................................................................... 11  . Flow Rate Measurement Methods ...................................................................... 12 

VLH a new turbine for Very Low Head...
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