Arman Farab

Arman Farab International Company

At the beginning of 2010 for the first time in Iran, Farab Equipment Manufacturing Company started to design and supply turbines and inlet valves for Azad hydro power plant project. The 10,000 KW Azad project has three horizontal Francis hydro units each with a capacity of 3,500 KW. The turbine net head is 95.0 meters, each unit turbine discharge is 4.0 meter cubic per second, and the rated turbine speed is designed to be 1,000 rpm. The best model turbine hydraulically designed by Farab Equipment Manufacturing Company was model tested in November 2010 at the laboratory of Turboinstitut in Ljubljana, Slovenia. It had a very good performance and high efficient hydraulic results.

The mechanical/detail designs of turbine components comprising over 350 manufacturing drawings, documents, calculation books and manufacturing procedures have been designed and prepared by Farab Equipment Manufacturing Company in-house.  The fabrication of turbine parts were distributed among different local manufacturers and currently, power house is commissioned successfully in December 2015.

Another example that shows Farab’s ability in the area of designing hydro turbines is the Gotvand small hydropower plant turbine. general specifications of this project are as follows:

Design of the small turbine in this power plant empowered Farab in the area of small water turbines. This resulted in Farab expanding its work to the design of micro and pico turbines as well as designing test rigs for micro and pico Francis and Pelton turbines, which are used in the process of verification of turbines.

Several activities needed to be performed in the design and report preparation processes some of the most important steps done in this regards are as follows:

Aiming to become independent of other companies in the verification process, Farab was first intrigued by experience in the area of designing Francis turbines to start designing a test rig for micro and pico Francis turbines, and then became interested in Pelton turbines afterwards. In a nutshell, model testing is done by first changing input parameters of a smaller model similar to the test model, then measuring and calculating other independent and dependent variables, and finally verifying turbine operation. Results are then shown in different forms such as dimensionless parameters, various tables, curves, and figures. This can be summarized in these steps: