02889cas a2200397 a 4500 20260818224318.0 110920s1989 th uu|m rtt 0| a1eng d .b10672709 AIT Thesis no. AE-89-06 Basunia, Mohammad Ali Testing of manually operated coiled tube pump Bangkok : Asian Institute of Technology, 1989 122 p. Thesis ; no. AE-89-06 Thesis (M.Eng.) - Asian Institute of Technology, 1989 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development The performance of a coil tube pump modified in AIT was evaluated both by variable speed motor and by manually. Maximum lift was found to b e 275 cm by using 1 2 turns in the coil. Suitable rpm for manual operation was found to be in between 35 to 25 rpm and within this speed range a labor can operate this pump continuous l y for 45 to 60 minutes. For lift 100-275 cm power requirement for 30 rpm was 16-72 watt and maximum discharge and efficiency were found to be 58 litre/min . and 60 % respectively . For this speed , the optimum angle of operation was found to be 24 degree (7 5 % diameter coil submergence ). Keeping average input power 30 watt (arms/ shoulder) a nd 75 watt (pedaling ) fixed cu t off points at different lifts were calculated. Best cu t - off point for 30 watt and 75 watt occurred at 25 rpm a nd 48 rpm at lift 24 0 cm and 250 cm at which efficiency was 61% and 45 % respectively. The overall performance of the coil tube pump is good. So there is a need to popularize this pump suitable for supplying irrigation water to vegetables, rice and wheat fields in the non-industrialized countries. Pumping machinery Testing Gee-Clough, D., Chairperson Singh, Gajendra, Examination Committee Gupta, Chandra P., Examination Committee Salokhe, Vilas M., Examination Committee The Royal Government of Netherland, Scholarship Donor Asian Institute of Technology. Thesis ; no. AE-89-06 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17818 .b10672709 mnait s 240401 2 951012 m a s 0 mnait mnarc 22 40 Barcode : 30050120581706 CREATED : 2014-10-02 RECORD # : i12760213 LPATRON : 1028371 LCHKIN : 2018-06-25 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120364202 CREATED : 2016-05-27 RECORD # : i12997390 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 119469 119469 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no. AE-89-06 30050120581706 2026-08-18 22:43:18 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. AE-89-06 30050120364202 2026-08-18 22:43:18 2026-08-18 40