Microwaves: The History and Development

vaporizes The History and DevelopmentEngineering ReportMicrowave Ovenbg SummaryThis state presents the foundation of nukes and states the purpose of the report. It give in addition give detailed pratground data ab push through the history of the machine. In addition, there will be an explanation towards what it does and why its driveed through come to the fore the humankind as well as its impact on society. More everyplace, there will also be a dependable definition of the harvest to full extent. The description will described how it looks like, how it feats, materials used in the product, how its assembled, how to use it and extra features of the machine. Further more than, two drawings will be present in the report that includes isometric and orthographic, which have full measurements and angles drawn as accurate as possible. Following this, an analysis will also display how the appliances components, sustainability, choice of materials and how well it functions will b e critic all in ally researched and analysed to how effective they be and if theres any room for improvement. Next, there will be extra p fieryos of the product as well as any other extensive information about it. Adding to that, will be full descriptive recommendation of how it could be improved and conclusion covering up between the old and new product as well its major contribution towards the recent world. Lastly, there will be complete harved references to show where informations was research from.1.0Introduction1.1 The Purpose of the Report.The purpose of this report is to show the foundation of how vaporize ovens work and how they used throughout the present world. This report will discover the ship arouseal they limitd society and will be deconstructed to show all the features of this product. It will also contain calculations and diagrams in order to maximum the full experience to how this product works from the in location. This report will generate systematically to be frankr and will contain critical opinions and judgements on how it could be improved as well as key historical background to the machine. In addition, this report will feature an appendix to display extensive use of research and freehand drawing towards its split and functions. The purpose of the report will also show the motivation for this product in the new technological world and will display every capability that it has to full extent.1.2 Background Information, historical research of this product.The atom-bomb was introductory invented somewhere in the year 1946 during a radar related research project. Dr Percy Spenser was part of the project but during the investigation found something very unusual. During the project, they were testing out a new vacuum called magnetron when suddenly he realized that the candy bar in his pocket had melted. This inspired the have-to doe with to try out some other experiment where he placed popcorn kennels near the tube and watch joy fully as they stated to pop, cracked and sputtered all over his lab. This fascinated the doctor about this unusual discovery and so prompted another experiment the succeeding(prenominal) morning with his colleague. The experiment was placing an egg next to the magnetron and the result was the egg exploding all over the doctors lab. Mr Spenser then came up with a logical scientific experiment the melted candy bar, the popcorn and egg all had one thing in ballpark they were exposed to low density atom-bomb energy. This conclusion led the doctor that if these forages can be cooked this quickly why others cannot be as well. Dr. Spencer then invented a coat box with an opening into which he fed micro-cook power. The energy ingress the box was unable to escape, therefore creating a higher density electromagnetic field. When the food placed in the box and microwave energy fed in, the temperature of the food increased very rapidly. Dr. Spencer knowingly knew he just designed what was to exalt cooking, and form the basis of a multimillion-dollar industry, called the microwave oven and put forward a plan to the Raytheon Corporation to build this machine .Unsurprisingly, in 1954 the Raytheon Corporation produced the first mercenary microwave called the 1161 Radarange. It was large, expensive, and had a power of 1600 watts which wasnt very efficient towards good deal who wont rich. To solve this problem a division of the company named Amana created the first domestic microwave oven in 1967 but sales were slow during the first few years, partially imputable to the ovens relatively expensive price tag, later the concept of quick microwave cooking arrived. In succeeding years, a number of other companies joined the countertop microwave oven market. By the end of 1971, the price of microwave oven units began to decrease and their capabilities expanded as while moved on.1.3 What does the product do?The microwave oven is a kitchen appliance that heats and cooks food by heating up the particles inside while exposing it to microwaves from the electromagnetic spectrum. The waves were utilize into the machine where the inventor was experimenting with the it.1.4 Why is there a need for this product?The microwave oven is one of the most in the important kitchen appliances in the modern twenty-four hours household. It provides the basic needs of everyday life and is important contribution towards the world. The machine delivers the most of what modern engine room has as it heats and cooks food instead the old ways of heating them on a stove or on a bonfire. Moreover, the device is also a great deal(prenominal) risk-freer than the stove as it does not get hot when conducted by heat due to the material its make from, which is immaculate sword with a coating of acrylic enamel be vex of its low thermal conductivity.1.5 Impact on SocietyThe microwave oven has made a portentous contribution towards society as it made life easier with a cooking and heating foods at your fingertips. This helps with timesaving and allows to practise individuals within the family at different times when necessary. This is important be social movement it helps many people whom are busy due to the technological world and dont have the needed time to cook food on the stove. In addition, the microwave allows the food to be cooked much cheaper compared to the olds ways as all the components built inside, making life much more simple. This helps many people in the long run with paying the bills and assisting them to pay the more important fees.2.0Description2.1 Describe the producti) What it looks like?The microwave oven is a quick and efficient machine that uses electromagnetic irradiation to cook food. This fascinating machine allows people to cook food whenever they are busy or tired after a long day at work. This machines design is a rectangular prism with to vertical and horizontal lines. In addition, it also has a built in light bulb to see ho w your food is cooking and has a timer whenever its finished. Most microwaves will have three ventilations systems to keep the channel in the microwave flowing and is used to take the radiation out. This method is necessary otherwise the quality of the food will suffer. Moreover, the machine also has a container at the back where it stores up the microwave energy and short circuit where its connected to the cable that is plugged towards the power point.ii) How it works?The microwave is actually sort of a simple machine to how it actually works. The inside generator called the magnetron takes electricity from the power outlet and converts it to high-powered microwaves. These waves then travel through the food compartment and satanic out towards the spinning turntable in order to cook the food evenly. Furthermore, the microwaves then bounce of the reflective admixture wall however when these waves meet the food they dont bounce but instead penetrate it and oscillate the molecules within it. Therefore, allowing the food to become hotter and let enjoy your meal.iii) materials usedThe following materials used to take aim microwaves areStainless make with a coating of acrylic enamel.Ceramic or glassElectromechanical components steel metal A mixture of cast iron, steel and bronzeStainless steelPolymerMedium carbon steelHardened steelPlastic and Copper wireWhy are these materials used?Material Uses Why?Stainless steel with acrylic enamelUsed for the outside layer of the microwaveCorrosion ResistanceDuctileLow heat submergingCeramic or glassUsed for the cooking surfaceCorrosion ResistanceInsulatorElectromechanical componentsTimer aims, switches and relaysSimple mechanicsConductorsSteel metalUsed to make magnetron tube , the waveguide, capacitor and the stirrer fan enceinte conductivityGreat durabilityDuctileA mixture of cast iron, steel and bronzeUsed to make the gearsHigh tensile strengthHigh endurance strengthLow coefficient of frictionStainless steelUsed to make pulleysHigh strengthPolymerUsed to make beltsHigh StrengthMedium carbon steelUsed to make screwsHigh tensile strengthtractileHardened steelUsed to make washersWear resistantBrittlePlastic and copperUsed to make the cablesGreat conductivitySilicon SteelUsed to make the transformerMagnetic Propertiesiv) How is it assembled?The process of manufacturing the microwave oven starts with the cavity that creates the microwave radiation. First, the frame is formed using automatic metal-forming presser with all of the other parts already made.The parts then move through a paint operation where the paint is heated up to 300 degrees for 20 minutes and all the parts are coated in paint.Following this, the front door receives a coat of paint and metal plate is disposed to its window.The microwave then moves onto the next phase where it obtains the anode cylinder that will provide with its electricity to generate to power. Moreover, a powerful magnet is then put around the cylinder to crea te an electromagnetic field, creating microwaves. A thermal protector is attached directly on the magnetron to prevent slander to the tube from overheating and causing an explosion.Additionally, an antenna enclosed in a glass tube is mount on top of the back of the microwave. The waveguide is connected to the magnetron that is a on top of the antenna, while a blower motor is attached directly to the tube. Finally, a plastic fan is attached to the motor. In addition the capacitor and the high voltage transformer are added in as well.The important frame placed on the assembly tray and the cavity is screwed on to the chassis, which is the component that makes all the parts work together. Next, the door is attached to the cavity and chassis. The magnetron tube is bolted to the side of the cavity and the main chassis.The circuit that produces the voltage required to operate the magnetron tube is then mounted directly on the frame, close to the magnetron tube.The stirrer fan is mounted on top of the cavity attached directly to the fan. Following this, the stirrer shield is screwed on top of the fan assembly. The shield prevents dirt and grease from entering the waveguide, where they could produce damage to the magnetron.The relay provides power to the transformer and a timer for the microwave. The relay is mounted close to the power transformer, while the timer is mounted on the mesh board. Also mounted on the control board are a timer bell that rings when your foods heated and a light bulb that allows see of the inside. Furthermore, a number of interlocking switches are secured near the top and bottom of the door area to enable cooking fillings.A front panel is attached next to the front door. Behind the front panel, the control circuit board is attached. The board, which controls the various programmed operations in their proper sequence when the switches are placed on the front panel, is connected to the various components and the front panel using plug-in s ockets and cables.The outer case of the microwave is made of stainless steel metal with coating acrylic enamel and assembled on a roll former. The case is strapped onto the preassembled microwave oven and is bolted in firmly. This finally completes the process and the oven is sent for packaging.v) How to use it?The microwave oven is quite a simple machine to use with basic knowledge of a human being. The machines main purpose is to cook/heat food and requires minimal effort by having a choice of how to do it. There are many options to cook your food such as defrost, fruits, desserts options and many more. When your choice has been made just click the option and the microwave oven does it automatically for you without the need of lighting the hit man stove.vi) Features and extra.There known to be three different types of oven that have been used throughout the modern world. The received solo microwave oven, the striking grill microwave oven and the new convention microwave. These m icrowaves have a different variety of cooking options but use the selfsame(prenominal) basic design with components and little adjustments such as moisture sensors and LED lights. There have also been variations changes to outside layer with it just primarily stainless steel. This design could be viewed as a disadvantage because of its electrical conductivity that wouldnt make it safe and would conduct even more heat that leads to greater find oneself of the microwave overheating and being significantly discredited. Nevertheless, the microwave is still a great kitchen appliance that has proven itself to be a vital part for the modern world.4.0Analysis4.1 Critical Judgment of the producti) ComponentsThe components of the microwave such as the magnetron, relay, motors, gears, capacitor, high voltage transformer, chassis and the cavity all do their job expeditiously and effectively. However, they are known to have overheated in microwaves causing health hazards over a long current o f time due to the capacious get of radiation. In addition, if the microwave is physically damaged or leaks it may also cause a problem as it has the chance of causing cancer if the dielectric is cracked from high chemical exposure. To combat these issues the immense radiation should decrease to stop overheating and the use of less chemicals should be introduced. Overall, most of the components are safe and useful compared to some of the old ones used in the first microwave oven.ii) Materials The materials used in the microwave oven are quite great and work professionally but there a number of significant problems with them. An example of one is the steel used for the components, which may start to corrode after a period of time. This is a major problem as if these components are damaged the microwave may have the potential of permanently shutting down. Moreover, the extensive use of steel may cause the microwave overheating due the high electrical conductivity, which would damage its components . To solve this problems the steel metal should be replaced with less amounts of stainless steel to prone electricity and has high corrosion resistant.iii) Sustainability The microwave oven is a great sustainable kitchen appliance. Their almost no problems that is present towards the natural environment except for the wont power and possible chemical leak. Furthermore, the use in domestic industry is also not much of a problem as they can be placed where people decide especially for seniors who old and fragile. But, this comes to a disadvantage because if microwaves are place within low heights children can play with and cause damage and may even drop it which may lead to high chemical leak if it cracks. In addition, some children could even place a metal object that will likely spark up and cause a fire .The immense radiation may also not be the stovepipe suitable options towards kids and seniors as their bodys arent strong enough to take the energy. A new design should come around with there is less radiation used , the containment for the microwave energy should be reinforced with stronger metal and sensors which can detect between food and metal objects.iv) How well it Functions?The microwave is an excellent, simple kitchen appliance that requires no work effort but basic human knowledge. The machine almost never lets you down which is why up to 92% of American households have it according to a study conducted in 1994. In addition, the appliance has had improvements over the past 50 years in order for it to be more effectively useful and safe. But, it does need a minor improvement towards the immense radiation and to reinforce the dangerous microwave energy stored in the back, Nevertheless, the microwave oven functions greats with all the components and materials needing slight developments.v) Pros and Cons of the ProductProsGreat simple machine with energy efficiency.Lasts for a long period of time.Almost never fails.Portable.Best way to cook food without lighting a gas stove.Keeps all nutrients stored in the food untouched. ConsThe microwave may overheat due to radiation that can cause damage.Not healthy for young children or seniors due to heat radiation.If physically broken, chemical leak may damage cell tissues, which can cause cancer.Components will eventually rust causing major damage towards the machine.5.0Appendix5.1 Drawings and Photos Magnetron Inside viewHigh Voltage Transformer Capacitor 5.2 Extra Relevant Information The microwave oven converts only part of its electrical input into microwave energy. An average consumer microwave oven consumes 1 degree centigrade W of electricity in producing 700 W of microwave power which has an efficiency of 64%. The other 400 W is used as heat mostly in the magnetron tube. In addition, any wasted heat or any microwave radiation is sent out through the cool down vents. Additional power is used to operate the lamps AC power transformer, magnetron-cooling fan food tur ntable motor and the control circuits, which only need about 100 W to all operate. In addition, the microwave oven also uses less energy compared to the gas stove due to all major components already built in. Therefore, the microwave oven is not only cheaper than a gas stove but also uses less energy that could be life-saving towards many people who have to pay more important bills.6.0Recommendations/Conclusions6.1 Recommendations The first recommendation I will make is for the type of material used in the components to be changed as most of them are made from steel metal. This metal is a great option to conduct electricity but over time, it will corrode and cause a major damaged towards the microwave oven. To solve the problem I will recommend is to replace the steel metal with stainless steel as its corrosion resistance. Therefore, allowing it to last much longer.The second recommendation that should be designed into the machine is less radiation used in the microwave. Microwave e nergy is not harmful but people such as seniors or young children may not be able to take the amount of heat present. In addition, even sometimes the immense radiation might overheat the microwave oven causing high damage towards its components due to them being next to the cavity. To combat this I will recommend minify the amount of energy the magnetron produces but enough to heat food.The third recommendation that should be introduced to the microwave is the amount of chemicals used in the magnetron. Some magnetrons contains beryllium oxide which if leaked can cause a dangerous lung condition which sometimes could be fatal. Furthermore, all magnetrons contain thorium mixed with tungsten that if leaked and inhaled , can damage cell tissues and cause cancer. To fix this I will recommend taking out most of the chemicals from the magnetron so it does present a health hazard.6.1 Conclusion The microwave oven has a significant impact on the modern world with its extensive abilities to cook and reheat food. The original form of cooking food can be dated back to Stone Age with the use of fire. Next, came the invention of gas stove in the 1820s which required great amounts of gas with a huge price on its tag. In addition, sometimes the gas stove will fail continuously but this issue was brought to the end in the 20th century. The brilliance of Dr Percys Spencer intellectual mind brought out around one of the most important kitchen appliances of todays technological world called the microwave oven. Even though, this machine had a few problems before becoming perfect. However, the advancement of technology repaired these few problems with companies eager to get their hands of this discovery and made further adjustments to its design to make it look incomparable, magnificent and stunning. Furthermore, the microwave oven uses the technology of electromagnetic radiation to bring new life towards cold and frozen food supplying it with the most effective and efficient way possible. The microwave oven has a major influence of how the world works with its outstanding and striking capabilities that has been indeed a great achievement by mankind.7.0BibliographyGallawa, J. (2013). The History of the Microwave Oven. online Microtechfactoryservice.com. Available at http//www.microtechfactoryservice.com/history.html Accessed 15 Mar. 2017.Woodford, C. (2016). Microwave ovens How do they work?. online Explain that Stuff. Available at http//www.explainthatstuff.com/microwaveovens.html Accessed 18 Mar. 2017.Riaz, R. (2017). How microwave oven is made manufacture, making, used, parts, components, structure, product, Design. online Madehow.com. Available at http//www.madehow.com/Volume-1/Microwave-Oven.html Accessed 18 Mar. 2017.Sharpe, E. (2007). Microwave Oven. online Smecc.org. Available at http//www.smecc.org/microwave_oven.htm Accessed 23 Mar. 2017.