Papers by Abdallah Elshawadfy Elwakeel
Al-Azhar Journal of Agricultural Engineering, Dec 21, 2021
Accurate pesticide application from sprayers is essential in modern farming practice. Evenness of... more Accurate pesticide application from sprayers is essential in modern farming practice. Evenness of flow characteristics of liquid from a sprayer nozzle is one of the requirements of accurate pesticide application. Hence, a study aimed to evaluate the flow characteristics of liquid from four different spray nozzles 422HCC02, 422HCC025, 422HCC03, and 422HCC05 on a horizontal spray patternator. The discharge rate, spray distribution pattern, spray swath of all types of nozzles were measured with a pressure range of 6.0 and 9.5 bar at three different nozzle height (30, 40 and 50 cm). The results showed that, Distribution uniformity of spraying machine ranged between (95.88 to 99.17 %), spray overlap varies from 7.5 to 47.5 cm, depending on spraying height and pressure, maximum spray angle was 89.59 ° at 30 cm height and 9.5 bar. Also, the results indicated that maximum spray angle 96.77 when the spraying pressure was 9.5 bar.
Al-Azhar Journal of Agricultural Engineering, Dec 21, 2021
Accurate pesticide application from sprayers, is essential in modern farming practice as it incre... more Accurate pesticide application from sprayers, is essential in modern farming practice as it increased pest control, reduced pesticide costs and wastage, and greater environmental safety. Evenness of flow characteristics of liquid from a sprayer nozzle is one of the requirements of accurate pesticide application. Hence, a study was undertaken to evaluate the flow characteristics of liquid from four different spray nozzles (hollow cone ceramic nozzle (HCC)) 422HCC02, 422HCC025, 422HCC03, and 422HCC05 on a horizontal spray patternator. The discharge rate, spray distribution pattern, spray swath of all the types of nozzles were measured with a pressure range from 6.0 to 9.5 bar at three different nozzle heights (30, 40, and 50 cm). Considerable variations in pattern occurred between successive runs with individual nozzles: The maximum coefficient of variation (C.V.) for the average of nozzle discharges was within the permissible limits because it is less than 10%. It was observed that with the increment of operating pressure and spraying height, the swath width was found to be increased. The average discharge from hollow cone ceramic nozzles has been increased as a result of the increased operating pressure of the pump where the average discharge for 422HCC02 nozzle ranged between (0.98 to 1.35 L/min), for 422HCC025 nozzle ranged between (1.15 to 1.65 L/min), for 422HCC03 nozzle ranged between (1.23 to 1.76 L/min), for 422HCC05 nozzle ranged between (1.35 to 2.03 L/min) when the pump pressure increased from 6.0 bar to 9.5 bar.
Al-Azhar Journal of Agricultural Engineering, Aug 3, 2022
Farmers use different types of sprayers for the management of the pest. Successful pest managemen... more Farmers use different types of sprayers for the management of the pest. Successful pest management depends not only on the quality of the pesticide and insecticides but also on the use of the right plant protection appliances. Hence, proper selection based on ergonomic, economic, efficacy, and ecological and use of equipment for pesticide application has a direct effect on crop productivity. Normally, the spray efficiency, which usually is estimated by cost-income of the agricultural industry, increases from handoperated sprayers with low application rate, small coverage area in a certain time interval, and low travel speed to large-scale sprayers which could apply pesticide with much higher application rate, bigger coverage area in a certain time interval and higher travel speed. This research aims to identify and inventory the different types of pesticide application systems used around the world.
Al-Azhar Journal of Agricultural Engineering, Aug 3, 2022
Aswan Governorate is considered the largest governorate of Egypt producing dried dates, and the m... more Aswan Governorate is considered the largest governorate of Egypt producing dried dates, and the most famous varieties are Sakkoti, Bartamuda, Gondaila, Malkabi, and Shamia. Immediately after harvest, dates contain a high percentage of moisture, which must be properly disposed of in order to maintain chemical composition and natural properties, and also for long-term storage. There are many drying systems that can be used to dry dates and reduce the moisture content to the safe storage limit. In Aswan, we practice sun drying in the open air for a period of 1 to 2 months, the date fruit is dehydrated, but the quality is very poor compared to industrial drying. This research aims to study the different drying systems that can be used to dry dates and maintain their physical and chemical properties.
Al-Azhar Journal of Agricultural Engineering, May 29, 2022
Sugar is an important strategic commodity for all countries of the world. Sugar after wheat is of... more Sugar is an important strategic commodity for all countries of the world. Sugar after wheat is of strategic importance in Europe, Africa, the Americas, and Australia, while sugar is second only to rice for Asian countries. It was, therefore, necessary to pay full attention to sugary crops, especially sugar cane, to increase productivity and to bridge the gap between production and consumption by increasing the productivity of sugarcane. The main problem of sugarcane plantations is the harvesting process, this research includes most of the systems used to harvest sugar cane around the world to identify the advantages and disadvantages of operating in the systems. This research aims to survey most of the systems used in sugarcane harvesting around the world.
Al-Azhar Journal of Agricultural Engineering, May 24, 2022
Nowadays, agricultural sprayers are the most widely used equipment to carry out pesticide applica... more Nowadays, agricultural sprayers are the most widely used equipment to carry out pesticide applications. Several kinds of sprayers have been developed from hand-operated, hydraulic sprayers to boom/speed sprayers or aircraft sprayers with the development of agricultural engineering. The objectives of this study were to design a self-propelled field sprayer to be operated and controlled remotely and evaluate the performance of the purposed machine at different forward speeds of 9.33, 8.39, 7.46, 6.48, and 6.22 km/hr and different pump pressure of 9.5, 8.5, 8, 7 and 6 bar under laboratory conditions. Also, evaluate and calibrate the performance of the spraying system. The results showed that the maximum actual field capacity was 8.66 fedd/hr at 9.33 km/hr, and the total operation cost was 60.44 EGP/hr (6.98 EGP/fedd) at 9.5 bar.
Al-Azhar Journal of Agricultural Engineering, Dec 21, 2021
Sugar is an important strategic commodity for all countries of the world. Sugar after wheat is of... more Sugar is an important strategic commodity for all countries of the world. Sugar after wheat is of strategic importance in Egypt. It was, therefore, necessary to pay full attention to sugary crops, especially sugar cane, to increase productivity and to bridge the gap between production and consumption by increasing the productivity of sugarcane. The main problem of sugar cane plantation is the harvesting process. The sugarcane harvesting season lasts for 5 months in Egypt, starting in Dec. and ending in May. A tractor-operated sugarcane harvester was designed, manufactured, and tested, and the machine parts was designed by using "SolidWorks" software, and this program helps to find out the typical dimensions of various components of machine with great accuracy in small time. The machine was manufacturing and constructed by using the low-cost material available in local market. Results of the tests showed that the effective field capacity ranged from 1.16 to 1.3 Fed/h and increased with an increase in row spacing and forward speed. In the high crop density fields, the cutter head efficiency averaged 100 %. It, however, increased with a decrease in cutting height and, increased with an increase in row spacing and number of knives. The throughput capacity increased from 42.9 to 79.02 t/h as the row spacing increased from 71 to 88.75 cm and the maximum total operating costs are 120 EGP/h (98.5 and 92.3 EGP/Fed) depending on the power requirements.
International Journal of Energy Research
In Egypt, the climate has a direct impact on the dried date fruit production. The traditional dry... more In Egypt, the climate has a direct impact on the dried date fruit production. The traditional drying method or open sun drying (OSD) leads to pollution of the final product caused by sand-laden winds, rain, or animals and harmful insects, etc. This study is aimed at designing, implementing, and experimentally validating a solar dryer based on IoT technology and integrated with a PV system in Aswan, Egypt. The purpose of the dryer is to monitor and control the quality of the three most popular date fruit varieties and determine the most effective drying method, with an algorithm that operates the system automatically for optimal performance and high-quality products. The automatic solar dryer (ASD) significantly affects the final moisture content and color characteristics and reaches the equilibrium moisture content (EMC) at a faster rate for dried date samples compared to the OSD. The drying rate of ASD was 29.03% (Sakkoti), 31.04% (Malkabi), and 25.49% (Gondaila) higher than OSD. A...
Al-Azhar Journal of Agricultural Engineering, 2021
Recently, interest has increased in the technology of manufacturing and controlling agricultural ... more Recently, interest has increased in the technology of manufacturing and controlling agricultural robots by remote control system using Arduino shield. Forward speed control and steering are the most important points in the designing of agricultural robots. Due to the high prices of DC motors and unavailability in the local markets with the desired power, thus this study the possibility of using AC motors by inventing an inexpensive method through which a robot can be operated using AC motors and it can also be operated and controlled remotely using an Arduino board Via Bluetooth, which leads to reduce the manufacturing costs of the robot and thus reduce the operating costs in performing the required process.
Misr Journal of Agricultural Engineering, 2020
A tractor-front mounted sugarcane harvester was fabricated and tested. The machine parts were des... more A tractor-front mounted sugarcane harvester was fabricated and tested. The machine parts were designed using "SolidWorks" software. The machine was then manufacturing and constructed by using the low cost material available in local market. Main components of this machine are machine frame, cutter head, power transmission system, and power supply. Results of the tests showed that the effective field capacity ranged from 1.16 to 1.3 fed/h, and increased with an increase in row spacing and forward speed. In the high crop density fields, the cutter head efficiency averaged 100 %. It, however, increased with a decrease in cutting height and also, increased with an increase in row spacing and number of knives. The throughput capacity increased from 42.9 to 79.02 t/h as the row spacing increased from 71 to 88.75 cm and the maximum total operating costs are 120 EGP/h (98.5 and 92.3 EGP/Fed) depending on the power requirements.
Misr Journal of Agricultural Engineering, 2020
Sugarcane represents the main cash crop in Upper Egypt. Area cultivated with sugarcane over 300,0... more Sugarcane represents the main cash crop in Upper Egypt. Area cultivated with sugarcane over 300,000 feds with average production 48 t/fed and total production may reach 16 million tons. The cost of labor has been increasing where the price is uncompetitive with the cost of mechanical harvesting with imported machines. Egypt needs to change its sugarcane harvesting methods from manual harvesting to mechanization to match the development occurred in similar countries. To mechanize sugarcane harvesting. Local cheap harvester should be manufactured considering our particular conditions. The study aimed to review and conclude some parameters the base cutter of a sugarcane harvester. The parameters, many include Physical and mechanical properties of sugar cane, cutting methods and types of knife edges, blade angles for cutting blades, cutting velocity (rotational speed) and forward velocity. Several researchers have been reviewing and reporting these parameters from variable point of views and variable objectives.
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Papers by Abdallah Elshawadfy Elwakeel