Abstract
This study describes new considerations in the desi gn and development of Archimedean’s Pipe-Screw especially for water pumping in case of low head hi gh volume form open farm pond at Rajamangala University of Technology Rattanakosin, Thailand. The objectives of this research is to develop an Archimedean’s Pipe-Screw especially for water pumping in case of low head high volume form open farm pond used for water pumping with Thai sail windmill, at any location of low wind speed of Thailand and tests the performance of an Archimedean’s Pipe-Scre w Model (APSM). The experimental was carried out on diameter of Archimedean’s Pipe-Screw is φ5/8”, the pitch Archimedean’s Pipe-Screw (P) is 0.6 , 0.8, 1.0, 1.2, 1.4, 1.6, 1.8 and 2.0 D for angle slope of the screw with the horizontal ( α) is 20, 25, 30°C in laboratory scale Archimedean’s Pipe-Screw model. Archimedean’s Pipe-Screw tests were conducted to assess the performance of characteristics of Archimedean’s Pip e-Screw model. A model of pump has been manufactured; 1.0 m long with the blade small rubbe r tube was constructed. The output of the experimen ts recommenced for development the prototype of Archimedean’s Pipe-Screw for the Thai sail wind pump. The prototype of pump has been manufactured, 4.0 m long, 8 m diameter. This wind pump has twelve triangular sails sweeping a circle of 8 m diameter. For the construction of this Archimedean’s Pipe-Sc rew wind pump all efforts were made to use maximize materials and local parts available in the market for large scale of Archimedean’s screw-pipe for Thai sail win d pump. The cost of material and parts is 145,000 B aht excluding the cost of machining and fabrication. Wa ter discharge was in the range 0.005-0.081 lps. It can be seen maximum water discharge of pitch Archimedean’s Pipe-Screw (P) is 1.4D at 80 rpm for α = 20° was 0.081 lps. For the result of prototype of Archimede an’s Pipe-Screw for Thai sail wind pump, it was fou nd that the curves for the prototype of Thai sail wind mill coupled to twelve Archimedean’s Pipe-Screw pump of wind speed and the discharge of was increased de pending on wind speed. The discharge amount varied between 9.56-38.23 m 3 /h at head of 1.5 m in wind speeds from 1.0-5.0 m s -1 that the overall efficiency of this windmill for water pumping was highest (76.96%) at wind speed of 1.4 m s -1 .
Highlights
Thailand is developing and growing very rapidly
The objectives of this research is to develop an Archimedean’s Pipe-Screw especially for water pumping in case of low head high volume form open farm pond used for water pumping with Thai sail windmill, at any location of low wind speed of Thailand and tests the performance of an Archimedean’s Pipe-Screw Model (APSM)
For the rotation speed of the pump shaft (n) of Archimedean’s Pipe-Screw testing are (n) are 6, 15, 33, 55, 73 and 80 rpm at the pitch of Archimedean’s PipeScrew testing 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8 and 2.0D, of Archimedean’s Pipe-Screw (APS) φ5/8 at α = 20°, 25° and 30°, in this results, it was found that water discharge increased with increasing the rotating speed of the pump shaft
Summary
Thailand is developing and growing very rapidly. This region’s location, close to the border with the largest economy of the world, has encouraged an important industrial corridor, increasing water consumption in a zone where this resource is highly stressed and not available in large quantities. The lack of water has grave consequences in Thailand, whereas a widely distributed means of water supply would contribute, to food self-sufficiency through an increase in productivity on the land and in cultivated areas. Production of water-by-water ladder pump is becoming a major issue in the entire Thailand, where people are willing to pay very high prices for this sought-after resource. Wind energy can be utilized for a variety of functions ranging from windmills to pumping water
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