Engineering Principles of Agricultural Machines 2nd Edition

Chapter 15
Machinery Selection and Management 
525
Introduction................................................................................................................ 525
15.1 Field Capacity and Efficiency......................................................................... 525
15.1.1 Field capacity............................................................................................ 525
15.1.2 Field efficiency ......................................................................................... 526
15.2 Draft and Power Requirements ....................................................................... 529
15.3 Machinery Costs............................................................................................... 535
15.3.1 Ownership costs........................................................................................ 535
15.3.2 Operating costs.......................................................................................... 538
15.3.3 Timeliness costs........................................................................................ 540
15.4 Machinery Selection and Replacement............................................................545
15.4.1 Machinery selection................................................................................. 545
15.4.2 Machinery replacement............................................................................ 548
Problems...................................................................................................................... 549
Simulation Problems.................................................................................................. 551
Selected Bibliography............................................................. 553
Appendix A................................................................................. 566
Appendix B .............................................................................. 568