Design And Fabrication Of Maize Corn On Cob Tray Dryer
Abstract
This study was carried out to induce a design data, design and fabricate a sludge sludge- on- cob charger teetotaler used by sludge growers. Ripped sludge sludge with cocoons were bought from the request and saved to retained its humidity content, dehusked and later, dried to a given chance humidity content of 15. This was done by laboratory teetotaler . The drying rate data was generated and the high rate of2.0 g/ hr was used latterly to design and fabricate the sludge- on- cob teetotaler . From the results, drying of a sample of sludge sludge- on- cob by the laboratory teetotaler took a period of three days and six hours to reach the 15 humidity content( wet base) demanded. A test run was carried out on the fabricated teetotaler and seventeen hours was used to dry a sample of sludge sludge- on- cob to the same 15 humidity content. This implies that design data is satisfactory as its operation in the fabrication of the teetotaler redounded in an increased inflow rate of air in the teetotaler thereby adding the rate of drying at the same drying temperature of 40oC.
Chapter One
4
Preface
. Background Of Study
Cereal grains have been and will continue to be a major source of food for humans and creatures throughout the world. Amongst all cereals, the most important is the sludge grain.( Leonard et al, 1963). Maize sludge and products can be used for colorful purposes; mortal food, indispensable drug, chemicals, bio energies, ornamentals, fodder, to mention but a many( Leonard, Warren H., and John H. Martin). sludge crop is intensely and considerably cultivated in all the geo- political zones of Nigeria. Beforehand sludge is planted between late March and late May while the late sludge is planted between August and September. The crop time for the early sludge is generally between late July and September. During this period, sludge are gathered fresh and can not be saved by drying owing to the attainability of sun during the stormy season. It’s generally roasted or braised fresh. This practice doesn’t encourage sludge growers as they would vend the sludge sludge at a give- away prices and this doesn’t guarantee returns on their investment. In addition to this, dried sludge grains will guarantee food adequacy during the scarce period. specially, sludge of high humidity content doesn’t stored veritably well and is generally vulnerable to damage due to deterioration, molds, and insects during the period of storehouse.
still, open air- sun drying as rehearsed in utmost pastoral areas frequently yields poor quality dried sludge, since the product isn’t defended against dust, humidity,
wind, rodents as well as other domestic creatures while carrying out the drying. As a result, they’re frequently defiled with pathogens. Another common practice in sludge sludge- on- cob drying is drying over a fire place. This has its own problems as the sludge grains are defiled with bank. also, the temperature of drying isn’t duly controlled similar that grains come dead after drying. There are colorful exploration workshop that have been carried out on grain drying( Zare et al, 2006; Mellmann, et al 2011; Adzimah and Seckley, 2009). These workshop were silent on drying and teetotaler design for sludge sludge- on- cobs.
There are four major drying ways; open air sun drying, fire wood/ energy drying, electrical drying and solar drying( Anyanwu et al 2006, Scanlin 1997 and Whitefield 2000). This exploration design will address these problems associated with postharvest running of sludge sludge- on- cobs, in particular drying, by designing and fabricating electrically operated charger teetotaler that will be simple but veritably robust in operation.
Statement Of The Problem
sludge sludge are generally stored when dried to certain chance humidity content. In Nigeria, sludge sludge drying is done in dry season because of low moisture of atmospheric air and acceptable sun. still, it’s a common place to see peasant sludge growers dry their sludge sludge- on- cobs over fire place, but this practice contaminates the dried sludge sludge with bank and generally
small volume of sludge sludge- on- cob are dried. The reverse is the case during the stormy season. Unfortunately, bulk of the sludge sludge is gathered in the stormy season and growers can’t dry the fresh sludge sludge rather they vend them at veritably cheap prices to sludge broilers and for other delectables. To give value to growers and also to guarantee sludge sludge adequacy during scarce period, it becomes necessary that a simple but robust sludge- on- cob teetotaler should be designed and fabricated to help growers have good returns on their investment especially duringpost-harvest running of sludge sludge during stormy season.