A simple mobile engine-driven pneumatic paddy

\r\ncollector made of locally available materials using local

\r\nmanufacturing technology was designed, fabricated, and tested for

\r\ncollecting and bagging of paddy dried on concrete pavement. The

\r\npneumatic paddy collector had the following major components:

\r\nradial flat bladed type centrifugal fan, power transmission system,

\r\nbagging area, frame and the conveyance system. Results showed

\r\nsignificant differences on the collecting capacity, noise level, and fuel

\r\nconsumption when rotational speed of the air mover shaft was varied.

\r\nOther parameters such as collecting efficiency, air velocity,

\r\naugmented cracked grain percentage, and germination rate were not

\r\nsignificantly affected by varying rotational speed of the air mover

\r\nshaft. The pneumatic paddy collector had a collecting efficiency of

\r\n99.33 % with a collecting capacity of 2685.00 kg\/h at maximum

\r\nrotational speed of centrifugal fan shaft of about 4200 rpm. The

\r\nmachine entailed an investment cost of P 62,829.25. The break-even

\r\nweight of paddy was 510,606.75 kg\/yr at a collecting cost of 0.11

\r\nP\/kg of paddy. Utilizing the machine for 400 hours per year

\r\ngenerated an income of P 23,887.73. The projected time needed to

\r\nrecover cost of the machine based on 2685 kg\/h collecting capacity

\r\nwas 2.63 year.<\/p>\r\n",
"references": null,
"publisher": "World Academy of Science, Engineering and Technology",
"index": "International Science Index 80, 2013"
}