Infrastructure Engineering - Research Publications
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ItemTrajectory Plotting System and Users Manual for use with Windows based Personal Computer( 2007)The computer program is a Microsoft Windows application in the Delphi programming language and is expected to run on Windows 95 / 98 / ME / 2000 / 2003 / XP. It requires about 5 Mb of hard disc space.
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ItemThe mechanics of fluid - particle systems: with special reference to agriculture(Ross Macmillan, 2007)This monograph and the associated computer program are concerned with the prediction of the trajectory of particles moving relative to fluids. The program is quite general and can be used to plot the trajectory of 'any' particle moving relative to 'any' fluid. However it cannot allow for particle spin or analyse three dimensional problems. The monograph, which assumes a 2nd year level of engineering science, is written particularly for professional agricultural engineering courses but may be of interest in the study of equivalent subjects for chemical or other engineers. It could also form the basis for short courses for practising engineers. The analysis is based on elementary fluid mechanics and provides the reader with a review of the basic theory and its application to the prediction of trajectory in one and two dimensions (Section I, Chapters 2 to 4). The latter develops the algorithms on which the associated computer program is based and presents a validation of the program based on published results. The major parts of the monograph illustrate the application of the program to a number of worked examples of interest in agriculture. Section II (Chapters 5 to 8) deals with examples of four distribution problems (ground and aerial based spreading and spraying) while Section III deals with three cleaning processes (winnowing in the wind and in horizontal and vertical wind tunnels). Section IV uses the program to analyse three other problems, viz, rain, fire and mineral sedimentation. It should be emphasized that these are examples of the application of the program and are not intended to be a complete analysis of the particular problem. Readers who are familiar with fluid - particle mechanics may wish to move directly to Chapter 4. Chapters 9 and 13 are reserved for future use.
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ItemLocally made equipment for teaching and research in agricultural engineering. Manual No.8. Practical research, testing and report writing( 2003)This manual is one of the series on locally made equipment for teaching and research in agricultural engineering and associated technologies. It is intended to provide the educational and technical background for the study of such equipment in practical work and the reporting of it by students. The objectives of practical research work and testing in agricultural engineering are presented, together with a discussion of the various types of experimental arrangement that are used for complete machines and test rigs. The types of performance test that are frequently undertaken and the significance of the experimental conditions are considered. The main features of practical work reports are presented in Appendix 1 in a form that may handed out and kept for reference by students.
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ItemLocally made equipment for teaching and research in agricultural engineering. Manual No.7. Grain drying rig( 2003)This eprint provides information on the design and use of this equipment for teaching and research. This manual, which is one of a series on locally made equipment for teaching and research in agricultural engineering and associated technologies, describes a rig for studying the air flow through and drying of grain by forced air circulation in a vertical bed. The rig is described and construction drawings are rovided; a parts list and sources of supply for purchased items are given. The use of the rig for air flow/pressure and grain drying drop experiments is described and the relevant theory is presented. It is not a rig for drying significant quantities of grain.
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ItemLocally made equipment for teaching and research in agricultural engineering. Manual No.6. Measurement of air flow with orifice plates( 2003)This eprint provides information on the use of this equipment for teaching and research. This manual, which is one of a series on locally made equipment for teaching and research in agricultural engineering, presents data for the selection of an orifice plate diameter to measure air flow with a given pressure drop and the method of calculation of air flow rate for a given orifice plate with a measured pressure drop.
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ItemLocally made equipment for teaching and research in agricultural engineering. Manual No.5. Seed drill calibration and distribution rig( 2003)The eprint provides information on the design and use of equipment for teaching and research. This manual, which is one of a series on locally made equipment for teaching and research in agricultural engineering, describes a rig for determining the calibration of and distribution from seed drills.The rig is specified by means of construction drawings. Sources of supply for purchased items are given. The method of using the rig and of analysing the data are given for both random and for spacing (precision) drills.
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ItemLocally made equipment for teaching and research in agricultural engineering. Manual No.4. Spray callibration and distribution rig( 2003)This eprint provides information on the design and use of this equipment for teaching and research. This manual, which is one of a series on locally made equipment for teaching and research in agricultural engineering, describes a rig for determining the calibration of, and distribution from, agricultural spray nozzles. The rig is specified in terms of a basic circuit diagram and construction drawings; sources of supply for the components and other data on spray nozzles are also given. The method of using the rig is explained, together with the interpretation of the results.
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ItemLocally made equipment for teaching and research in agricultural engineering. Manual No.3. Tillage dynamometer( 2003)This eprint provides information on the design and use of this equipment for teaching and research. This manual, which is one of a series on locally made equipment for teaching and research in agricultural engineering, describes a dynamometer for measuring the draught forces on tillage tools with a single force cell. The dynamometer is specified by means of construction drawings. Sources of supply for purchased components are given, together with the method of analysing and using the dynamometer.
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ItemLocally made equipment for teaching and research in agricultural engineering. Manual No.2.2. Tractor dynamometer( 2003)This eprint provides information on the design and use of this equipment for teaching and research. This manual, which is one of a series on locally made equipment for teaching and research in agricultural engineering, describes a dynamometer for testing small tractors on soft and firm surface conditions. The dynamometer is stationary and the tractor operates via a rope and drum against the action of the disc brake in a 'pull-out' mode. The frictional force generated between the brake pads and the disc is used to determine the draught. The dynamometer is specified by construction drawings and an associated parts list; sources of supply are provided for the major parts to be purchased. The method of calibration and use of the dynamometer are described.A vehicle for testing small tractors and animals on firm surfaces (and based on the same loading system) is described in Manual No 2.1.
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ItemLocally made equipment for teaching and research in agricultural engineering. Manual No.2.1. Animal/tractor dynamometer( 2003)This eprint provides information on the design and use of this equipment for teaching and research. This manual, which is one of a series on locally made equipment for teaching and research in agricultural engineering, describes a load vehicle for testing animals and small tractors on firm surfaces.It is based on a towed vehicle with a disc brake which is driven from ground wheels. The frictional force generated between the brake pads and the disc is used to determine the draught. The vehicle is specified by construction drawings and an associated parts list; sources of supply are provided for the major parts to be purchased. The method of calibration and use of the vehicle is described.A dynamometer, suitable for testing small tractors on soft and firm soils (based on the same loading system), is described in Manual No 2.2.