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| Okoko, Paul. |
| Draft and power requirement determinations were made for some tillage implements operating on clay loam soil. The implements included a 3 – bottom disc plough, a spring tine cultivator and an offset disc harrow. The effects of speed and depth upon the draft and power requirements were investigated. Soil analysis test, tractor and implement specifications and results of tillage experiments are reported. A general regression equation to predict draft and power requirements of these implements on a clay loam soil was developed based on speed and depth parameter. A significant increase in draft and power requirements were observed for all the implements with an increase in depth. The relationships between draft and power requirement with respect to speed and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Farm power and Machinery Draft; Power requirement; Moisture content; Tillage. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4563 |
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| Olosunde, William Adebisi; Aremu, Ademola Kabir; Okoko, Paul. |
| Evaporative cooling occurs when warm and unsaturated air is blown across a wet surface. This study reviews the development of simulation software as a research tool for designing evaporative cooling systems. The simulation incorporates information concerning the effect of the cooling pad length, cooling pad height, cooling pad thickness, air velocity, water flow rate, water temperature, water to air mass flow rate, and number of cooling pad segments in terms of the performance efficiency of the cooling system. The software rapidly produced model data, which was subjected to further analysis for verification and validation during the testing stage. The modelled and experimental data of the saturation efficiency were compared using 4 of the most important... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural engineering; Crop processing and storage; Information processing Evaporative Cooling system Crop Storage MATLAB Simulation SPSS.. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3915 |
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| Okoko, Paul; Umani, Kingsley Charles; Onwe, David Nwabueze. |
| Selection and matching of appropriate tillage implements for a given farming operation are dependent on the data available on draft parameters for the particular tillage implement. Spring tine cultivator is one of the primary tillage implements commonly used by farmers in the study location. Performance information of spring tine cultivator is vital to enable the cost of tillage operation to be reduced. Field experiments were performed using spring tine cultivator and tractor at three tillage depths (10, 20 and 30 cm) and five tractor speeds (3.6, 5.4, 7.2, 9.0 and 10.8 km/hr) to determine the implement travel speed. The effects of tillage depth and implement travel speed on draft force, unit draft, vertical specific draft, horizontal specific draft and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tillage; Draft; Unit draft; Specific draft; Coefficient of pull; Tractor; Spring tine cultivator. |
| Ano: 2023 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7061 |
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