الفهرس | Only 14 pages are availabe for public view |
Abstract Grading is the process for vegetables and fruit of the most important processes of the good preparation for vegetables and fruits after harvest. Good grading is cause to raise the quality of the product and make it identical to the specifications defined for each grade according to the requirements of domestic and global market in the case of export. In addition to meeting the needs of the consumer at a price that suits him. Also the grading of fruit is makes the product suited for automated manufacturing processes as the peeling processes ,the boiling, remove the cores, as well as in processes where the regularity of the heat transfer is very important and to helps ease packaging and transport, handling and prevent damage resulting from mechanical vibrations. It is noted that when you make the preparations for vegetables and fruit must be sorting the fruit before the process of grading. Sorting is a process which is intended to remove the infected fruits by fungal injuries, insect and damaged fruits....etc, grading is a process which separate the fruits to different grades bases on one or more of the physical characteristic of fruits such as dimensions, weight, color, volume and degree of maturity…etc, according to the standard or the required for the market. Usually the grading for vegetables and fruit being by manual methods or machinery method. It is noted that the grading by manual methods have many disadvantages, most notably the high cost of trained manpower and lack of availability, as well as lower production rate and efficiency, while the grading by machinery method is characterized the high speed, high efficiency and decreasing of the operating costs. Due to the lack of the small grading machinery to fit small farms, And higher prices of large grading machinery, therefore conducted this study, which aims to design, manufacture and evaluate the performance of a prototype for grading of the fruits and vegetables based on the dimensions of the fruit by using |