A refrigeration cycle having a coefficient of performance of 3 maintains a computer laboratory at 18C...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A refrigeration cycle having a coefficient of performance of 3 maintains a computer laboratory at 18°C on a day when the outside temperature is 30°C. The thermal load at steady state consists of energy entering through the walls and windows at a rate of 30,000 kJ/h and from the occupants, computers, and lighting at a rate of 6000 kJ/h. Determine the power required by this cycle and compare with the minimum theoretical power required for any refrigeration A refrigeration cycle having a coefficient of performance of 3 maintains a computer laboratory at 18°C on a day when the outside temperature is 30°C. The thermal load at steady state consists of energy entering through the walls and windows at a rate of 30,000 kJ/h and from the occupants, computers, and lighting at a rate of 6000 kJ/h. Determine the power required by this cycle and compare with the minimum theoretical power required for any refrigeration
Expert Answer:
Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Posted Date:
Students also viewed these mechanical engineering questions
-
On a cold winter day, the outside temperature is 15.0C. Inside the house the temperature is + 20.0C. Heat flows out of the house through a window at a rate of 220.0 W. At what rate is the entropy of...
-
A concrete walk is poured on a day when the temperature is 20.0C in such a way that the ends are unable to move. (a) What is the stress in the cement on a hot day of 50.0C? (b) Does the concrete...
-
On a day when the air temperature is 19C, a 0.15-kg baseball is dropped from the top of a 24-m tower. After the ball hits the ground, bounces a few times, and comes to rest, by how much has the...
-
Suppose that we have a linear program that is not in standard form. We could produce the dual by first converting it to standard form, and then taking the dual. It would be more convenient, however,...
-
Prepare journal entries to record the following production activities. 1. Transferred completed products with a cost of $137,000 to finished goods inventory. 2. Sold $450,000 of products on credit....
-
Allan Meltzer of Carnegie Mellon University wrote the following about how the Federal Reserve Boards staff analyzed the likely effects of the large excess reserves banks were holding in the...
-
What measures of location are commonly computed for frequencies?
-
The partner in charge of the Kappeler Corporation audit comes by your desk and leaves a letter he has started to the CEO and a copy of the cash flow statement for the year ended December 31, 2012....
-
5. A ray of blue light strikes a 60 triangular glass prism of refractive index 1.54 as shown. (a) Calculate the angle of refraction of the ray of blue light as it enters the glass prism. (b) If the...
-
American Surety and Fidelity buys and sells securities expecting to earn profits on short-term differences in price. For the first 11 months of 2024, gains from selling trading securities totaled $8...
-
Find the integrals using complex analysis + 1 (2+cose)
-
A. Given the following historical-returns on Alpha stock, calculate the average return, variance, standard deviation, and coefficient variation for this stock. Year 2016 2017 2018 2019 2020 Alpha...
-
Jane took out a 11-year loan for $87,686 from her local bank at an annual rate of 5.5%. If she plans to make monthly payments, how much will eachpayment be? Round your answer to the nearest dollar.
-
Why do most money market securities have large denominations? Given the functions of the money markets, why is it necessary for money market securities to have a maturity of one year or less and low...
-
2. Compare the returns of the individual securities and the portfolio during the entire period, pre COVID-19 and during COVID 19 periods. Which security was most affected by the crisis and which...
-
Blue light with a wavelength of 4.57 E7 m is used in Young's experiment with the slits separated by a distance of 2.42 E4 m. The screen is located at a distance from the slits of 4.5 m. Calculate the...
-
NUBD Company has budgeted its activity for October 2021 based on the following information: i. Sales are budgeted at P300,000. All sales are credit sales and a provision for doubtful accounts is made...
-
1A. If the researcher is concerned about the number of variables, the nature of the analysis, and completion rates, then, he/she is at which stage of the sampling design process (Figure 11.1 in the...
-
The New Hampshire State Police use aircraft to enforce highway speed limits. Suppose that one of the airplanes has a speed of 135mi/h in still air. It is flying straight north so that it is at all...
-
Flux and non-conducting shells a charged particle is suspended at the center of two concentric spherical shells that is very thin and made of non-conducting material. Figure (a) shows a cross...
-
Figure shows two isotropic point sources of light (S1 and S2) that emit in phase at wavelength 400 nm and at the same amplitude. A detection point P is shown on an x axis that extends through source...
-
We normally think that dissipative forces tend to decrease the velocity of an object. This is correct for isolated systems. Consider the case of an artificial satellite of mass \(m\) in a circular...
-
Determine the work required to transport \(10 \mathrm{~kg}\) of material from Earth to the ISS, the International Space Station, in orbit \(420 \mathrm{~km}\) above the Earth's surface.
-
An artificial satellite of mass \(m=3.4\) ton is in a circular orbit at the altitude \(h_{1}=5000 \mathrm{~km}\). Due to various causes, it gradually loses energy and reaches an altitude \(h_{2}=600...
Study smarter with the SolutionInn App