Answer:
Area of solar panel required =
Required power to raise temp/ useful power from irradiation
= 1228.7kw/0.27kw/m²
= 4551m²
Explanation:
Radiant energy /m² = 900w/m²
Density of air = 1.225kg/m³
Volumetric flow = 2000m³/minute = 33.33m³/s
Mass of air flow = density of air * volumetric flow = 1.225kg/m³ * 33.33m³/s = 40.83kg/s
T1 = Initial temp = 30°
T2 = Final temp = 60°
Required power to raise temp of air
= air mass flow * Cp * ( T2 - T1)
Where Cp = specific heat capacity of air =1.003kj/kg k
= 40.83kg/s * 1.003 Kj/kg k * 30k =1228.7kw
With 30% irradiation
Useful power/m² = .9kw/m² * .3 = .27kw/m²
Area of solar panel required =
Required power to raise temp/ useful power from irradiation
= 1228.7kw/0.27kw/m²
= 4551m²
Answer:
you just answered your question
Explanation:
it is D
Answer:
The metal Harvey should use for reflective coatings in telescope mirror is;
C. Aluminum
Explanation:
In a telescope, the mirror of the telescope is usually made of a temperature-resistant and strong glass, while the reflective coating of the mirrors is made usually from aluminum. A protective coating often composed of silicon dioxide is placed n the top of the reflective coating
Aluminum is used in a telescope, rather than the silver, which is the most reflective material, because silver requires special conditions to be able to work, and silver tarnishes when exposed to air containing sulfur, and silver is susceptible to corrode.
Answer:
researching the way people use microwave ovens to determine how to improve their design.
Explanation:
Apex. hope this helps !!!
Answer and Explanation:
Both both successive approximation normally known SAR type and flash type ADC are used for the conversion of analog signal to digital signal successive approximation type ADC are preferred over flash type when we need fix conversion time and better accuracy and if we have don/t matter with speed of the conversion because flash type has better speed of conversion than SAR type