CONSTRUCTION OF A STANDARD BANKING OVEN WITH DUAL POWER SOURCE (ELECTRIC/GAS)
This project is designed to make the students utilize as many theoretical and practical concept as have been instructed in alstron to mechanical engineering workshop technology.
Students are expected to learn and apply concepts, principles about energy specially the conversions of electrical energy to thermal energy, conduction and conventional heat transfer etc.
Also the determination of the properties of various ferrous and non-ferrous materials, electrical installation occults. The application of engineering measurement and quality control.
Also to build an intellectual ability in interpretation of working drawing in designing and development before and after working process. Students will get an opportunity to appreciate safety, and the use of both machine and hand tools in the course of working.
TABLE OF CONTENT
Table of content
1. Objective of the project
1. History of ovens
2. Types of oven2.2.1 Conventional/standard oven2.2.2 Fan forced oven
2.2.3 Microwave oven
2.2.4 Multi-functional oven
2.2.5 Solar oven
2.3.0 Mode of oven operation
2.3.1 Electrical section
2.3.2 Gas section
1. SAMPLE ACTIVITIES
1. Sequence of activities during operation
2. Summary of events
3. Graphic illustrationF.G.1.1 Obilique projectionF.G.1.2 Ontograhic projection
F.G.1.3 Sectional view
F.G.1.4 Circuit Diagram
1. MATERIAL METROLOGY
1. Materials and Reasons for use
2. Behaviour of mild steel when heated
3. Graphic of heating and cooling curves for mild steel
2. Working tools use for project
3. Bill of Quantities
1. Performance and evaluation of oven
2. Care and maintenance
3. Standards and symbols
5. Combustion of methane gas
6. Conclusion and recommendation
This project is undertaken to
1. Compare the various ways used in the production of an electric and gas oven.
2. Disclose the different types of process in the manufacturing of an electric oven and also a gas oven in the past in comparison to the morden days method.
3. Exploit the local facilities available in the construction of the oven as against imported ovens.
4. To exhibit the usefulness of a dual-purpose oven in the economy and technology growth of the nation.
5. To know the convenience in the use of alternate power source for operation of ovens.
6. Discover the basic principle involved in the design and maintenance of a dual purpose oven.
1. IMPORTANCE OF OVENS
In actual analytical enunciation an oven is an enclosed chamber in which things are heated or cooked with various sources of power.
Its importance borders around its function, which are as follows;
I. It is used to meet the everyday basic need of cooking, (baking, toasting, gritting, toasting) of food materials for human consumption.
II. Ovens are used for heat treatment of substance in laboratories and industries.
III. Also as a means of preservation by heat application to perishable materials (organic and inorganic) in general.
IV. Sterilization of instruments and equipment for industrial use is done by heat application using oven.
V. Expelling of moisture content to a required measure in some substance is also done using oven.
VI. Early manufactured ovens where used as a source of room heaters during cold weathers in cold climates.
Other importance boarding around its energy source is that the use an alternative source of energy when either fossil fuel or electricity is not available. This can be relatively save cost when necessitated.
Disadvantages in the use of ovens:
(i) Cleaning and repair is a difficult and time- consuming endeavor.
II. Expect for mass production singular construction is relatively expensive to produce.
III. If precautions are not well carried out, it can result in fire hazard, which is dangerous to life and properties.
IV. Because ovens provides heat for one or more areas, the temperature may vary in different areas of the oven.
V. Oils and moisture collected on metal surface can end up trying to rust the metal coating if not clean regularly.
VI. It is expensive to operate in high volume operations.
VII. Speed seem to be the key factor and time taken to get to required constant temperature can be wastage of time.
VIII. Access to internal component n case of adjustment and maintenance is tasking as it requires an entire disassembling.
IX. In case of mechanical faults resulting from shut down, an entire disassembling and requires is required.
X. Due to its function by heating, there is always a premature wear or mechanical failure of some of the internal component.
1. HISTORY OF OVENS
The first historical record of an oven being built is in 1790, in Alsace, France as written by mary Bellis in her work :Brief history of cost iron stoves in America.
This oven was made entirely of bruks and tile. At about 1728, cast iron ovens were made in large quantity. The first stove of German design are called five plate or jamb ovens. A progression of invented oven differed due to the fuel used.
Benjamin Franklin (1706-1790) invented the iron furnace oven. Frans Wilhelm lind quert designed the first soothless kerosene oven.
Jordan Mott invented the first practical coal oven in 1833. It was called the base burner. It had ventilation to burn the coal efficiently. The coal ovens were cylindrical in shape and made of heavy cast iron with a hole at the top, which was then enclosed by an iron ring.
The gas cooker was found in most households by the 1920s with top burner and interior ovens. A British inventor, James shape patented a gas cooker in 1826 which was the first successful gas stove to appear in the market
The carpenter electric heating manufacturing co. invented an electric oven. But it was not until the late 1920s and early 1930s that electric ovens began to compete with gas ovens.
The microwave ovens was a by product of another technology. It was during a rader related project around 1946 that Dr. Percy Spencer an engineer with the Raytheon co-operation discovered that food exposed to low density microwave energy cause it to be cooked.
The latest of this inventions oven, was invented as a means to solve the problem identified with the consumption of fossil fuels and the need for alternative source of energy.
The history of inventions like many of today’s great inventions has each step being a development or a by product of previous technology and so has been the development of ovens. It has been a change from large bulky size with each invention to a more portable and a change of fuel or source of energy used..