02245cas a2200253   450000500170000000800410001703500150005810000270007324500710010026000520017130000140022349000260023750001560026350200580041952011390047765000140161670000460163070000480167670000520172470000480177671000440182481000580186885600650192620260818171504.0110905s1981    th uu|m rtt   0|  a1eng d  a.b104945711 aJawaid Iqbal, Mohammed10aPerformance and aerodynamic analysis of Thai multi-bladed windmill  aBangkok :bAsian Institute of Technology,c1981  aix, 94 p.1 aThesis ;vno. ET-81-1  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development  aThesis (M.Eng.) - Asian Institute of Technology, 1981  aThis thesis presents the results of the field measurements carried on the Thai multi-bladed windmill ' Sanit-14' and also the results of wind tunnel tests made on the blade profile of the Sanit rotor, which uses a  flat plate mounted on an angle iron. The field measurements at 2.75 m head showed that the system at this head has an overall efficiency of about 0.16 at a design velocity of 2.4 m/s. The output of 1 litre/sec, which is normally required for irrigation, is attained at a wind speed of 3 m/ s. ·.At 4. 75 m and 6. 75 m head the overall efficiency is 0.19 and 0:21 respectively, while output of 1 l/s is reached at wind speeds of 3 . 5 m/ s ·and 4 m/ s ·respectively·; Wind tunnel tests on a flat plate mounted on an angle ·iron were necessary since such tests were not reported anywhere in the literature.  The test revealed that a flat plate mounted on an angle iron has a c1- design slightly higher than O. 6 and a [Cd/CL]min of 0. 115 which is reached at an angle of incidence of 5. The performance calculations showed that the Sanit rotor has a Cp of 0.25 which is attained at a design tip speed ratio of 1. max 0aWindmills1 aWalter, Despiegelaere, Ir., eChairperson1 aLysen, Ir. Eric H., eExamination Committee0 aSuphat Vongvisessomjai, eExamination Committee1 aExell, Robert H.B., eExamination Committee2 aC. D. G. (Germany), eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. ET-81-1  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B21563