Principles, Materials, Systems and Operation

solar cells – the solar resources
solve the questions attached, just avoid plagiarism. the deadline is in three days

 

Don't use plagiarized sources. Get Your Custom Essay on
Principles, Materials, Systems and Operation
Just from $10/Page
Order Essay

Solar Cells – Principles, Materials, Systems and
Operation
Assignment 3
Q1. Use the PVLighthouse solar spectrum calculator to generate the global spectral irradiance on a latitude-tilt fixed collector in Ottawa on 1 July 2020 at solar mean times of 12h00, 19h00, and 19h30 (times are given in hours and minutes, not decimal). (a) Plot the three spectra on a single graph. Is the overall reduction in the intensity consistent with what you would expect? Address this question quantitatively, using the simplest model possible. (b) Normalize each spectrum by its maximum and replot the spectra. Qualitatively describe what you observe. (c) For the 19h00 and 19h30 calculations, quantitatively describe the degree to which each scattering and absorption mechanism contributes to the spectral reshaping, relative to the noon spectrum. HINT: look at the atmospheric transmission plots (data also in the download Excel file). Which mechanisms dominate, and in what fashion?
Q2. A two-axis tracker is located at 44°N latitude. It tracks the sun. The sun path diagram is located to the right. Assume clear sky conditions. Answer the following questions. (a) At what time and date is the collector azimuth angle equal to 30° and the tilt angle equal to 70°? (b) To the nearest 30 minutes, how many hours of daylight are there for the date found in (a)? (c) Sketch the daily insolation (in W/m2) striking the 2-axis tracker on this date (i.e., plot insolation vs time), noting sunrise, noon, and sunset on the time axis. Give a value for the maximum insolation. (d) On the plot you sketched above, also sketch the daily insolation for a panel with a 44°N fixed tilt on this date. Specifically, show whether its maximum is less than, greater than, or equal to the tracker maximum, and briefly explain why.
Q3. Suppose you are concerned about a tall thin tree located 100 m from a proposed PV site. You notice that an hour before solar noon on June 21 it casts a 30 m shadow directly toward your site. Your latitude is 32°N. (a) How tall is the tree? (b) What is its azimuth angle with respect to your site? (c) Using an appropriate sun path diagram (go here to generate it), roughly what are the first and last days of the year when the shadow will land on the site?
Q4. If your local longitude is 6° east of the local time meridian, and the local time is 11.30 am, in how many minutes will solar noon occur? Consider only the local longitude. Neglect any “day of year” (i.e., equation of time) correction.
Q5. The following table shows TMY data (W/m2) for Denver (latitude 39.8°N) on July 1 (n = 182, δ = 23.12°). Calculate the expected irradiance on the following collector surfaces. (a) South-facing, fixed 40o tilt, reflectance 0.2, solar noon. (b) Horizontal, north‐south (HNS) single-axis tracker, reflectance 0.2, at 11:00 am solar time. (c) Two-axis tracker, reflectance 0.2, at solar noon.
Q6. Use the NSRDB Viewer to access the PSM v3.0.1 (Multi
Year PSM Global Horizontal Irradiance) dataset. Locate
Las Vegas. Go to “Download DAta” and select “Point”, placing the marker precisely on the Las Vegas legend. In the data download wizard, select PSM v3 5 minute, select year 2019 and all attributes. In options, select interval 5 minutes. Download the data. Consider the data of 31 July. (a) Open the file and study its contents. Note that the first two rows provide location-specific information, data types (including their units, if any), cloud types, and data assessment flags. The third row gives the actual column headings. On a single figure, plot the DHI, DNI, and GHI. (b) Verify equation (3.4-31) in module 3 by calculating GHI from the given DNI and DHI, and then plotting the given and calculated GHI values versus altitude angle. (c) Define a clearness index K by the ratio of the GHI to the Clearsky GHI. Plot this clearness index versus altitude angle. Can you associate values of the clearness index with specific cloud types? If so, which? Indicate the cloud types that persist more than 30 minutes by highlighting the plot at these times, labeling each highlight by its cloud type.

 

Get professional assignment help cheaply

Are you busy and do not have time to handle your assignment? Are you scared that your paper will not make the grade? Do you have responsibilities that may hinder you from turning in your assignment on time? Are you tired and can barely handle your assignment? Are your grades inconsistent?

Whichever your reason may is, it is valid! You can get professional academic help from our service at affordable rates. We have a team of professional academic writers who can handle all your assignments.

Our essay writers are graduates with diplomas, bachelor, masters, Ph.D., and doctorate degrees in various subjects. The minimum requirement to be an essay writer with our essay writing service is to have a college diploma. When assigning your order, we match the paper subject with the area of specialization of the writer.

Why choose our academic writing service?

  • Plagiarism free papers
  • Timely delivery
  • Any deadline
  • Skilled, Experienced Native English Writers
  • Subject-relevant academic writer
  • Adherence to paper instructions
  • Ability to tackle bulk assignments
  • Reasonable prices
  • 24/7 Customer Support
  • Get superb grades consistently

 

 

 

 

 

 

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Open chat
1
You can contact our live agent via WhatsApp! Via +1 817 953 0426

Feel free to ask questions, clarifications, or discounts available when placing an order.

Order your essay today and save 20% with the discount code VICTORY