Question

A solar panel measures 0.53 m by 1.5 m. Indirect sunlight, the panel delivers 7.5 A...

A solar panel measures 0.53 m by 1.5 m. Indirect sunlight, the panel delivers 7.5 A at 4.2 V. If the intensity of sunlight is 300 W/m2, what is the efficiency, as a percentage, of the solar panel in converting solar energy into electrical energy?

Homework Answers

Answer #1

Find the power absorbed by the panel by using the intensity of sunlight and the area of the solar panel. Find the power delivered using the voltage and current. Use the power delivered and power absorbed to find the required efficiency as shown below


*************************************

If you find something wrong, mention it in the comments below and it will be fixed immediately….

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The total amount of solar energy that arrives at the earth from the sun is 1.74...
The total amount of solar energy that arrives at the earth from the sun is 1.74 × 1017 W, and the surface area of the earth is 5.1 × 1014 m2 (assuming the earth's radius is 6.37 × 106 m). (a) If a solar panel is about 20% efficient in converting solar photons into electrical power, how big a solar panel (in area, m2) would be required to run a 70 W light bulb? (b) Humans use approximately 4.87 ×...
The total amount of solar energy that arrives at the earth from the sun is 1.74...
The total amount of solar energy that arrives at the earth from the sun is 1.74 × 1017 W, and the surface area of the earth is 5.1 × 1014 m2 (assuming the earth's radius is 6.37 × 106 m). If a solar panel is about 20% efficient in converting solar photons into electrical power, how big a solar panel (in area, m2) would be required to run a 70 W light bulb? Humans use approximately 4.87 × 1018 J...
The intensity of sunlight striking Earth's upper atmosphere (called the solar constant) is 1.35 kW/m2. (a)...
The intensity of sunlight striking Earth's upper atmosphere (called the solar constant) is 1.35 kW/m2. (a) Find Erms and Brms due to the sun at the upper atmosphere of Earth. Erms =  V/m Brms =  µT (b) Find the average power output of the sun. W (c) Find the intensity at the surface of the sun. W/m2 (d) Find the radiation pressure at the surface of the sun. Pa
The Campus measures approximately 1.5 km by 1.5 km. If using 15% efficient PV (photovoltaic) panels,...
The Campus measures approximately 1.5 km by 1.5 km. If using 15% efficient PV (photovoltaic) panels, what fraction of campus would have to be covered in order to meet the total demand of 100,000 MWh in a year, assuming that each panel would be exposed to 5 hours of 1000 W/m² incident sunlight per day? (hint: first work out the peak power of the PV panels in full sun, which should be several times higher than the average campus demand).
In a solar water heater, energy from the Sun is gathered by water that circulates through...
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that the efficiency of the overall system is 14.0% (that is, 86% of the incident solar energy is lost from the system). What collector area is necessary to raise the temperature of 280...
Suppose your center produced a solar cell with the first surface being a glass of index...
Suppose your center produced a solar cell with the first surface being a glass of index n = 1.5 which curiously has that value over the entire solar spectrum. a) if unpolarized light falls on the glass surface at the Brewster angle, what fraction of the energy in the incident light is reflected from the glass? b) suppose that the sunlight delivers irradiance (time-averaged Poynting vector) of 1 kW/m2 . Calculate the amplitude of the electric field in this sunlight....
In a solar water heater, energy from the Sun is gathered by water that circulates through...
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that the efficiency of the overall system is 12.0% (that is, 88% of the incident solar energy is lost from the system). What collector area is necessary to raise the temperature of 260...
A model cost/benefit analysis of solar power. The main ingredients of this analysis are the power...
A model cost/benefit analysis of solar power. The main ingredients of this analysis are the power used (required) and the power delivered. For a simple model we want to use broader averages. Used: An American home has an average power use of 1.2 kW. That means that considering all of the daily variation, the difference between night and day and the seasons, etc., the average at any given second is 1.2 kJ per sec = 1.2 kW. Delivered: The home...
A pine tree can produce 0.50 tons of wood in 15 years. The fuel heating value...
A pine tree can produce 0.50 tons of wood in 15 years. The fuel heating value of this wood is 21 MJ/kg. The tree has a canopy that is 8 m across and collects solar energy for an average of 5 months (or 5/12 of the time in a year) out of the year (this includes nighttime and winter). The solar energy incident on this pine tree is 220 W/m2. a) What is this tree's efficiency for converting sunlight into...
Given that the radius of Earth is 6.37 x 106 m and the average distance from...
Given that the radius of Earth is 6.37 x 106 m and the average distance from the Sun to the Earth is 1.50 x 108 km: (a) What fraction of the radiation emitted by the Sun in intercepted by the Earth? (b) A satellite in Earth orbit measures an intensity of 1350 W/m2 (this is a standard used in satellite construction: “AM0”), what is the total power output of the Sun based on our near- Earth satellite measurements? (c) Measured...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT