![MindTap Engineering for Dunlap's Sustainable Energy, SI Edition, 2nd Edition [Instant Access], 1 term (6 months)](https://s3.amazonaws.com/compass-isbn-assets/textbook_empty_images/large_textbook_empty.svg)
MindTap Engineering for Dunlap's Sustainable Energy, SI Edition, 2nd Edition [Instant Access], 1 term (6 months)
2nd Edition
ISBN: 9781337551755
Author: DUNLAP
Publisher: Cengage Learning US
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 9, Problem 12P
To determine
Find the maximum frequency of the light that produces output from a Ge-based photovoltaic cell.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A 2 x 2 m flat plate solar collector for domestic hot water heating is shown in the figure. The incident solar radiation on the glass cover, which transmits 90% of the incident flux, is 750 W/m2. Water flows through the tubes soldered to the backside of the absorber plate, entering at a temperature of 25°C. The temperature of the glass cover is 27°C, and it radiates heat with an emissivity of 0.92 to the sky at –50°C. Additionally, the glass cover losses heat by convection to air at 20°C flowing over its surface at 30 km/h. Assume that the radiation heat transfer between the absorber plate and glass cover and the heat transfer through the back and sides of the collector is negligible.
i) What is a photovoltaic cell?
ii) A certain solar cell type has an output capability of 0.5 A at 0.4Volts. A series / parallel solar array
has been designed of such cells with 80 parallel strings and each string has 1500 cells in series.
Calculate: (i) Voltage capability (ii) Current capability and (iii) Power output capability of the array.
13.
Chapter 9 Solutions
MindTap Engineering for Dunlap's Sustainable Energy, SI Edition, 2nd Edition [Instant Access], 1 term (6 months)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- What is the electric flux through a sphere if that sphere has a radius of 2m and carries charge 20 µ C ?arrow_forwardAn optical source has a spectral width of 1 nm. What type of optical source is it likely to be? Coherent source Wideband source Incoherent source Incandescent lamp All of these None of thesearrow_forward1. An unknown lamp placed 6m from a photometer screen provides the same illuminance as a 90 cd lamp placed 4 m from the screen. What is the candlepower of the unknown lamp? 2. The illuminance of a room 20 ft x 15 ft is being designed. The illuminance required is 50 footcandles. What is the total required lumens output of the lamp assuming room and luminaire efficiency of 42%?arrow_forward
- Write any two differences between photovoltaic system and solar thermal technology.arrow_forward3.) A classroom is 30 ft by 30 ft with a 12 ft ceiling. You want to determine the average illuminance on the floor from recessed luminaires. What is the RCR value that you will use to determine the appropriate luminaire CU? RCR =arrow_forwardRENEWABLE ENERGY IN CONSTRUCTIONarrow_forward
- Mass = Density*volumearrow_forwardOne kilowatt equals how many watt-hours?arrow_forwardA point source emits 200 radiant watts and has a luminous efficacy of 120 lumens/watt. Itsspatial distribution is spherically uniform. state any assumptions, check answer w bold text. a) What is the luminous intensity of this source? 1910 cdb) What is the average illuminance on a unit sphere centered around the point source? 6000/pii lx or fcc) What is the illuminance at point p at the center of circular surface A? 212 Ixd) If surface A has a radius of 2 m, what is the illuminance at point q? 122 lxf) what is the total number of lumens incident onto surface a? ~2015lmg) The total reflectance of surface A is 0.50. What is the average exitance of surface A? 80 Im/m2arrow_forward
- describe the theory and instrumentation of flame photometry.arrow_forwardAn electronic package with a surface area of 1 m² placed in an orbiting space station is exposed to space. The electronics in this package dissipate all 1 kW of its power to the space through its exposed surface. The exposed surface has an emissivity of 1.0 and an absorptivity 0.25. Determine the steady state exposed surface temperature of the electronic package (a) if the surface is exposed to a solar flux of 750 W/m², and (b) if the surface is not exposed to the sun.arrow_forwardA beam of light passes from glass with refractive index 1.58 into water with a refractive index 1.33. The angle of the refracted ray in water is 58.0°. a) Draw a sketch of the situation showing the interface between the media, the normal line, the incident ray, the reflected ray, the refracted ray, and the angles of these rays relative to the normal line. b) Calculate the angle of incidence in the glass.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Engineering Fundamentals: An Introduction to Engi...Civil EngineeringISBN:9781305084766Author:Saeed MoaveniPublisher:Cengage Learning
Residential Construction Academy: House Wiring (M...Civil EngineeringISBN:9781285852225Author:Gregory W FletcherPublisher:Cengage Learning
Materials Science And Engineering PropertiesCivil EngineeringISBN:9781111988609Author:Charles GilmorePublisher:Cengage Learning
Engineering Fundamentals: An Introduction to Engi...
Civil Engineering
ISBN:9781305084766
Author:Saeed Moaveni
Publisher:Cengage Learning
Residential Construction Academy: House Wiring (M...
Civil Engineering
ISBN:9781285852225
Author:Gregory W Fletcher
Publisher:Cengage Learning
Materials Science And Engineering Properties
Civil Engineering
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Cengage Learning