A 20 m long parabolic trough collector with an aperture width of 3.5 m has a...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A 20 m long parabolic trough collector with an aperture width of 3.5 m has a pipe receiver of 50 mm outside diameter and 40 mm inside diameter and a glass cover of 90 mm in diameter. If the space between the receiver and the glass cover is evacuated estimate: a) the overall collector heat loss coefficient (4 marks) b) temperature of the glass (2 marks) c) the useful energy gain, (2 marks) d) the exit fluid temperature. (1 marks) The following data are given: Absorbed solar radiation: 500 W/m². Receiver temperature: 260°. Receiver emissivity: 0.92. Glass cover emissivity: 0.87. Circulating fluid:1350 J/kg-K. Entering fluid temperature: 220°C Mass flow rate 0.32 kg/s. Heat transfer coefficient inside the pipe: 330 W/m²-K. Tube thermal conductivity: 15 W/m-K. Ambient and sky temperature: 25°C. Wind velocity: 5 m/s. A 20 m long parabolic trough collector with an aperture width of 3.5 m has a pipe receiver of 50 mm outside diameter and 40 mm inside diameter and a glass cover of 90 mm in diameter. If the space between the receiver and the glass cover is evacuated estimate: a) the overall collector heat loss coefficient (4 marks) b) temperature of the glass (2 marks) c) the useful energy gain, (2 marks) d) the exit fluid temperature. (1 marks) The following data are given: Absorbed solar radiation: 500 W/m². Receiver temperature: 260°. Receiver emissivity: 0.92. Glass cover emissivity: 0.87. Circulating fluid:1350 J/kg-K. Entering fluid temperature: 220°C Mass flow rate 0.32 kg/s. Heat transfer coefficient inside the pipe: 330 W/m²-K. Tube thermal conductivity: 15 W/m-K. Ambient and sky temperature: 25°C. Wind velocity: 5 m/s.
Expert Answer:
Answer rating: 100% (QA)
Collector Surface Area Ac Ac L w Ac 20m 35m Ac 70m Collector Aperture Area A A D glass 4 ... View the full answer
Related Book For
Basic Finance An Introduction to Financial Institutions Investments and Management
ISBN: 978-1111820633
10th edition
Authors: Herbert B. Mayo
Posted Date:
Students also viewed these finance questions
-
Suggest mechanism for this substance: OH ZI CH3 CH3
-
Consider a three generator system with IC3 (PG1) 18+0.03PG12 TL/MWh, IC(Paz)=15+0.02PG2-A TL/MWh, Ici (PG3) = 20 +0.02PG3 = TL/MWh, and with constraint PG1+PG2 +PG3 = 900.0
-
The surfaces of two concentric spheres having radii of 75 and 100 mm are maintained at 325 K and 275 K, respectively. (a) If the space between the spheres is filled with nitrogen at 5 atm, estimate...
-
The FBI Standard Survey of Crimes shows that for about 80% of all property crimes (burglary, larceny, car theft, etc.), the criminals are never found and the case is never solved (Source: True Odds,...
-
A manufacturer of electric irons produces these items in two plants. Both plants have the same suppliers of small parts. A saving can be made by purchasing thermostats for plant B from a local...
-
Imran owns a business which operates from rented premises. He has a 10-year lease on the premises and he paid a premium of 7,000 on 1 January 2023 in order to renew this lease. His income statement...
-
Determine if pretrial conferences are required or authorized in California. Are there special rules in California that must be followed?
-
A production line at V.J. Sugumarans machine shop has three stations. The first station can process a unit in 10 minutes. The second station has two identical machines, each of which can process a...
-
Develop a competency map of the knowledge, skills and abilities that an employee would need to have to be hired for that job.
-
Robertos Honey Farm in Chile makes five types of honey: cream, filtered, pasteurized, mlange (a mixture of several types), and strained, which are sold in 1 or 0.5 kg glass containers, 1 kg and 0.75...
-
Smith Company Balance Sheet and Selected Income Statement Data Assets: Cash and marketable securities $300,000 Accounts receivable 2,215,000 Inventories 1,837,500 Expenses paid in advance 24,000...
-
A favorable roofing subcontractor quote has been received and is being considered. although the subcontractor stated in their quote that they are not responsible for any underground property damage...
-
Shadee Corporation expects to sell 540 sun shades in May and 320 in June. Each shade sells for $138. Shadee's beginning and ending finished goods inventories for May are 60 and 55 shades,...
-
The following data were summarized from the accounting records for Gonzaga Industries Inc. for the year ended November 30, 20Y8: Cost of goods sold: Commercial Division $3,550,000 Residential...
-
Suppose we have two individuals in our economy with incomes of 100 and 50. We introduce a policy that results in the two individuals having income of 25 and 25. Assume the standard utilitarian social...
-
Journalizing equity investment transactions; less than 20% ownership The following equity investment transactions were completed by Vintage Company during a recent year: Apr. 10. Purchased 10,000...
-
3. The letters zo, 21, 22, 23, 24, 25 come into your lossless source coder with probabilities 0.4, 0.25, 0.15, 0.1, 0.05, 0.05, respectively. (a) Find a Huffman code when you take N = 1 input symbols...
-
Akramin just graduated with a Master of Engineering in Manufacturing Engineering and landed a new job in Melaka with a starting salary of RM 4,000 per month. There are a number of things that he...
-
Your broker offers to sell for $1,200 a AAA-rated bond with a coupon rate of 10 percent and a maturity of eight years. Given that the interest rate on comparable debt is 8 percent, is your broker...
-
What should be the prices of the following preferred stocks if comparable securities yield 7 percent? Why are the valuations different? a. MN Inc., $8 preferred ($100 par) b. CH Inc., $8 preferred...
-
A stock costs $90 and pays a $4 annual dividend. If you expect to sell the stock after five years for $100, what is your anticipated return on the investment?
-
An air-conditioning chiller unit weighing \(10 \mathrm{kN}\) is to be supported by four air springs (Fig. 2.50). Design the air springs such that the natural frequency of vibration of the unit lies...
-
The maximum velocity attained by the mass of a simple harmonic oscillator is \(10 \mathrm{~cm} / \mathrm{s}\), and the period of oscillation is \(2 \mathrm{~s}\). If the mass is released with an...
-
A helical spring, when fixed at one end and loaded at the other, requires a force of \(100 \mathrm{~N}\) to produce an elongation of \(10 \mathrm{~mm}\). The ends of the spring are now rigidly fixed,...
Study smarter with the SolutionInn App