Moisture dependent physical and mechanical properties of chickpea seeds

作     者：Ayman H.Amer Eissa Mohamed M A Moustafa H Abdul Rahman O.Alghannam 

作者机构：Department of Agriculture Systems EngineeringCollege of Agricultural and Food SciencesKing Faisal UniversityP.O.Box 420Al-Hassa 31982Saudi Arabia Agriculture Engineering DepartmentFaculty of AgricultureMinoufiya UniversityShibin El-KomEgypt 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2010年第3卷第4期

页      面：80-93页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：moisture physical properties mechanical properties chickpea 

摘      要：The moisture-dependent physical properties are important in designing and fabricating equipment and structures for handling,transporting,processing and storage,and also for assessing *** study was carried out to determine the effect of moisture content on some physical and mechanical properties for two varieties of chickpea seeds(Giza 3,and Giza 195).Four levels of moisture content ranging from 11.6%d.b.(dry basis)to 25.4%*** *** average length,width,thickness,and geometric mean diameter ranged from(7.92±0.04)mm to(8.14±0.04)mm,(6.10±0.04)mm to(6.37±0.04)mm,(6.43±0.04)mm to(6.84±0.04)mm and(6.77±0.07)mm to(7.08±0.07)mm,*** average sphericity and roundness ranged from(85.53±0.19)%to(87.00±0.19)%and(93.70±0.35)%to(94.14±0.35)%,*** average measured surface area,calculated surface area,and projected area ranged from(144.73±1.55)mm2 to(158.78±1.55)mm2,(146.89±1.58)mm2 to(159.78±1.58)mm2,and(46.53±0.50)mm2 to(48.93±0.50)mm2,*** average bulk density,true density,porosity and angle of repose ranged from(730.05±11.84)kg/m3 to(694.17±11.84)kg/m3,(1,225.12±19.51)kg/m3 to(1,308.02±19.51)kg/m3,(44.13±0.49)%to(43.29±0.49)%,and(25.20±0.41)o(degrees)to(29.10±0.41)o(degrees),respectively and also increased linearly with an increase in moisture *** average seed weight and thousand seeds weight ranged from(0.142±0.002)gm to(0.184±0.002)gm,and(177.38±2.17)gm to(194.75±2.17)gm,*** average static coefficient of friction against wood,stainless steel,galvanized iron and iron surfaces and internal with the same seeds ranged from(0.430±0.016)to(0.460±0.016),(0.321±0.007)to(0.366±0.007),(0.327±0.004)to(0.371±0.004),(0.412±0.011)to(0.496±0.011)and(0.638±0.022)to(0.741±0.022),*** average terminal velocity ranged from(5.18±0.34)m/s to(9.14±0.34)m/*** average penetration depth at load 6kg and tools diameter 1 mm was determined as mechanical property,and generally increased in magnitude with an increase i