Final answer:
The equations for a solar oven depend on its design, the angle of placement should be equal to the latitude, the incident power is the power per unit area of sunlight,
the dimensions of the trapezoidal reflector depend on the design, and the percentage change in gain can be calculated using a formula.
Step-by-step explanation:
The equations for a solar oven depend on the specific design and components of the oven, but in general, the main equation is the relationship between the incident solar power and the absorbed power:
Absorbed Power = Incident Power * Absorptivity
The angle of placement for a solar oven depends on the latitude of the location. For maximum efficiency, the angle should be equal to the latitude of the location.
The incident power is the power per unit area of sunlight incident on the reflector or collector of the solar oven. It is usually given in watts per square meter (W/m²).
The dimensions of the trapezoidal reflector of a solar oven depend on the specific design, but they are usually determined based on the desired focal length and position of the focus point.
The percentage change in gain can be calculated using the formula:
Percentage change in gain = (New gain - Old gain) / Old gain * 100