Create a highly insulated oven with a pull out drawer for quick and safe access to food.
Our Overall Design:
- Design is rectangular and sturdy, allowing for easy stacking while storing or traveling.
- Drawer allows safe access to food (the user does not have to reach into the hot oven).
- Drawer can latch tightly to the body of the oven, making a good seal with a double gasket system (minimizing heat loss).
- Structural support is plastic/insulation combination, which minimizes thermal bridging.
- Clean looking design, aimed towards the American consumer.
Main Aspects of Design:
|Assembly of the Inner Oven. Structural support is provided with a framework of rectangular bars. The walls are made of sheet aluminum to minimize weight. There are grooves in the structural supports that allow the sheet metal to thermally expand without failing.|
|A view of the inner oven with the top sheet of aluminum removed. The edges of the oven all have the rectangular supporting bars of aluminum. There is also an additional aluminum rod near the front of the oven to prevent it from buckling inwards.|
Inner Oven With Plastic Supports and Microtherm:
Iterative Excel Worksheets:
1) Heat loss calculations for a variety of common insulations with variable oven dimensions
Heat Loss for Different Insulations.xlsx
2) Calculates the amount of thermal storage needed to heat water to boiling point for several different thermal masses Thermal Storage.xlsx
Finite Element Analysis of Our Concept:
|Finite Element Analysis of a worst case 100 lb force being distributed along the top of the oven. The left picture displays the forces and boundary conditions applied to the oven. The right picture displays the magnitude of the deflections caused by the applied force. The max deflection was 0.06 inches, and the max von mises stress was 2200 psi. Our design can easily withstand both this deflection and this stress.|