Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

On Farm Performance of Manual Pumps

M. A. Haque
Assistant Professor
Department of Farm Power and Machinery, BAU, Mymensingh-Z202, Bangladesh

M. A. Zaman
Professor
Department of Farm Power and Machinery, BAU, Mymensingh-Z202, Bangladesh

M. D. Hussain
Professor
Department of Farm Power and Machinery, BAU, Mymensingh-Z202, Bangladesh

Abstract/ Executive Summary:

This paper describes the on farm performances of three manually operated pumps widely used, in Bangladesh namely, twin treadle pump, rower pump and No. 6 hand pump. Discharges from the treadle pump, rower pump and No. 6 hand pump at a head of 2.5 m were 0.66, 0.50 and 0.41 Us respectively. Power input to the Rower pump and No. 6 Hand pump were 10% and 40% higher, irrespectively than that of the treadle pump at a head of 3.5 m. Treadle pump had the highest efficiency of 45% while the rower pump and the No. 6 hand pump had 38% and 25% efficiency, respectively. BCR values were 2.69, 1 .83 and 1 .17 respectively for the treadle pump, rower pump and No. 6 hand pump. The costs of lifting per m³water were Tk. 6.46, Tk. 8.55 and Tk. 9.85 for the treadle, rower and No. 6 hand pump respectively. The overall performance of the twin treadle pump was better than rower and No. 6 hand pump up to a suction lift of 6 m. The No. 6 hand pump is not suitable for irrigation purpose because of its very low discharge and high power requirement.

Keywords: Manual pumps, Treadle pump, Rower pump, Hand pump, Performance

Location: BAU, Mymensingh

Start Date:

End Date:

Program Area: Farm Mechanization

Commodity: Pump

Objectives:

(a) To find power requirement of the pumps.

(b) To find the head-discharge relationship, power input discharge and power-head relationship, efficiency-discharge relationship and cumulative discharge of the pumps.

Methodology:

Performances of three manually operated pumps namely, treadle pump (twin), rower pump and hand pump were studied at farm level in three different villages of Mymensingh Sadar Thana. Three types of pumps with the following specifications were studied. i) Treadle Pump: twin cylinder,8.9 cm in diameter and 30cm in length; 3.81 cm diameter suction pipe. Length of the left, middle and right space of the treadle were 55 cm, 30 cm and 88 cm, respectively. ii) Rower Pump : 5.1 cm diameter and 45.72 cm long PVC cylinder inclined at 30 cm to the horizontal; diameter of suction pipe was 3.81 crn. iiiD No. 6 Hand Pump : 10.20 cm diameter cylinder and 12.70 or diameter water chamber; diameter of suction pipe was 3.81 cm. Each pump was tested at different heads. Pumping was done under normal field conditions by hired labourer. ln each test the time of operation, number of strokes or cycle per minute, discharge per stroke, discharge per second, force required per stroke and efficiency were measured. Each test was replicated five limes. The average of the five readings was taken as test data. Water discharged from the pumps was collected in a container of 26 litre capacity which was graduated to litre marks. Thus Discharge/second was obtained by dividing the volume of water pumped by the pumping time. Operators operated the pumps for 2U25 minutes continuously and then made a break of 5-6 minutes. Average stroke lengths for the treadle, rower and No. 6 hand pump were 13, 38 and 40 cm, respectively. To obtain variable heads in the tube wells, the experiment was conducted at different times. Normally the ground water table comes up after monsoon and goes further down before monsoon. So, this fluctuation of ground water table with time permits to get variable heads to conduct the experiment on field conditions. Head was measured with the help of an avometer. ln all the cases, head loss due to friction in the suction line was neglected. Due to lack of precision force measuring instruments, such as, load cell strain gauge, forces required to pull or push the pumps were measured approximately by a pull type spring balance. Abdullah (1986) reported that pulling force for treadle pump was zero and that on the lever of hand pump was negligible as compared to the pushing force.

Source of Information: J. Agril. Mach. & Mech. 3 (1 & 2), 1996 : 19-26 ISSN 1024-6290

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Twin treadle pump was the best considering the performances regarding discharge, head, power and efficiency for lifting ground water. The farmers of the study area also ranked the treadle pump as the first and then the rower pump for small scale irrigation. The operation of manually operated pumps are tedious and their discharge is low. Effort should be made to increase the capacity of these pumps. Detail ergonomic study should be conducted for their modifications so as to improve their performances.

Knowledge Management: Journal