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Agricultural and horticultural engineering : principles, models, systems and techniques /
Agricultural and Horticultural Engineering: Principles, Models, Systems, and Techniques focuses on the developments in agriculture and horticulture, including the role of engineers in employing measures in the management of plants, animals, and machinery. The book first offers information on the pro...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Wellington :
Butterworths,
1990.
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| Colección: | Butterworths agricultural books.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Agricultural and Horticultural Engineering: Principles, Models, Systems and Techniques; Copyright Page; Preface; Acknowledgements; Disclaimer; List of Sources; Table of Contents; Chapter One. The Engineering Approach; Introduction; Models or practicalities?; The Modelling Approach; About this textbook; The use of words in this book; A special message to Agricultural and Horticultural students; The Engineering Approach; Contract management; Exercises; Aims of this chapter; References; Chapter Two. Surveying; Introduction; Tape surveying; Compass surveying; Aerial surveying
- LevellingBarometric levelling with the aneroid; Abney Clinometer; Cowley level; The Dumpy level; The Theodolite; Tacheometry or stadia surveying; Electronic distance measurement and electronic total stations; Plane tabling; Calculation of volumes; Setting out for earthworks; Problems; Aims of this chapter; References; Chapter Three. Models of our World; Introduction; Models of the environment
- an overview of physical models (laws); Models of material properties; Models of the interactions between materials and their environments; Models of the response to loading of solids
- The relationship between stress and strainHardness; Other types of matter; Movement; Momentum; Getting a reaction; Friction; Distributed loads; Frameworks; Elastic model of a bending beam; Work, energy and power; Temperature and heat; Light and electromagnetic radiation; Conservation of energy; Energy Units; Efficiency; Further problems; Aims of this chapter; References; Chapter Four. Workshop methods; Introduction; Soldering; Welding using oxygen-acetylene apparatus; Electric arc welding; Low temperature brazing; Bronze welding; Notes on the use of farm workshop tools; Exercises
- Aims of this chapterReferences; Chapter Five. Hydraulics; Introduction; Water supply requirements; Basic properties; Hydrostatics; Hydrodynamics; Measurement of flow rate in pipes; Head loss, pumping and Bernoulli's equation; Head loss in a pipe; Design criterion for water supplies; Estimation of head loss; Systems curves; Pumps; Types of pump; Wells (bores); Farm dams; Installation notes; Irrigation systems; Sub-surface irrigation; Surface irrigation; Sprinkler irrigation; Triclde irrigation; Horticultural spraying; Water hammer; Drainage; Exercises; Aims of this chapter; References
- Chapter Six. Electricity and ElectronicsIntroduction; Fundamental principles of electronics; Ohm's Law; Power and energy consumption; Batteries; Types of circuit component; Using and interfacing electronic equipment; Digital circuits; The electronics of computers; Interfacing digital circuits; Exercises; Aims of this chapter; References; Chapter Seven. Power systems and thermal systems; Introduction; Electrical power; Alternating voltage supplies; Electrical power generation and distribution; Electric motors; Electrical safety; Internal combustion engines; Refrigeration; Heat transfer