KAMEL, O., EL-KHATEEB, H. (2002). COMPARATIVE PERFORMANCE OF TWO MECHANICAL WHEAT HARVESTING COMBINES WITH TRADITIONAL SYSTEM. Egyptian Journal of Agricultural Research, 80(3), 1297-1312. doi: 10.21608/ejar.2002.312658
OSAMA M. KAMEL; HAMADA A. EL-KHATEEB. "COMPARATIVE PERFORMANCE OF TWO MECHANICAL WHEAT HARVESTING COMBINES WITH TRADITIONAL SYSTEM". Egyptian Journal of Agricultural Research, 80, 3, 2002, 1297-1312. doi: 10.21608/ejar.2002.312658
KAMEL, O., EL-KHATEEB, H. (2002). 'COMPARATIVE PERFORMANCE OF TWO MECHANICAL WHEAT HARVESTING COMBINES WITH TRADITIONAL SYSTEM', Egyptian Journal of Agricultural Research, 80(3), pp. 1297-1312. doi: 10.21608/ejar.2002.312658
KAMEL, O., EL-KHATEEB, H. COMPARATIVE PERFORMANCE OF TWO MECHANICAL WHEAT HARVESTING COMBINES WITH TRADITIONAL SYSTEM. Egyptian Journal of Agricultural Research, 2002; 80(3): 1297-1312. doi: 10.21608/ejar.2002.312658
COMPARATIVE PERFORMANCE OF TWO MECHANICAL WHEAT HARVESTING COMBINES WITH TRADITIONAL SYSTEM
Agricultural Engineering Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
Abstract
Field experiments were carried out at the experimental field of Rice Mechanization Center, Meet EI-Deeba, Kafer El-Sheikh Govemorate, Egypt. Two different types of Japanese combines harvesting machines, Yanmar model CA-385, cutting width 1400 mm, crawler travelling unit. adjusted pick tines and star wheels. Multi-purpose combine harvester Yanmar model CA-760, cutting width 2060 mm, crawler travelling unit, front reel, were tested at three different forward speeds of about (2.3, 3.2 and 4.5 km/h) three cylinder speeds (22.7, 28.1 and 32.1 m/s) and three moisture contents (16.3,13.6 and 10.9%) for wheat crop. The lowest values of header losses, threshing losses and shoe losses were (0.27,0.37 and 0.20%) and (0.35,0.27 and 0.17%) recorded at grain moisture content of 13.6 %, cylinder speed of 28.1 m/s and forward speed of 2.3 km/h, for combines CA-760 and CA-385 respectively. Also the minimum values of total losses were (0.84 and 0.79 %) respectively obtained at forward speed of 2.3 km/h, cylinder speed of 28.1 m/s and grain moisture content of 13.6%, which are recommended for optimum harvesting wheat. At these conditions the criterion cost (109.3 and 94.3 LE/Fed), for the combines CA-760 and CA-385, respectively compared with manual harvesting followed by mechanical threshing and winnowing (192.55 L.EIFed).
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