A square cross-section pipe (0.48 m by 0.480 m) is used to renew the air of a room measuring 4.5 m by 2.8 m by 2.9 m, ev...
A square cross-section pipe (0.48 m by 0.480 m) is used to renew the air of a room measuring 4.5 m by 2.8 m by 2.9 m, every 22 minutes. What should be the modulus of the air flow velocity in the pipe?
Homework Answers
Add Answer to:
A square cross-section pipe (0.48 m by 0.480 m) is used to renew the air of a room measuring 4.5 m by 2.8 m by 2.9 m, ev...
Air enters a 10-m-long section of a rectangular duct of cross section 15 cm X 20 cm made of commercial steel at an average velocity of 7 m/s
Air enters a 10-m-long section of a rectangular duct of cross section 15 cm X 20 cm made of commercial steel at an average velocity of 7 m/s.(p = 1.145kg/m3 ,μ = 1.895x10-5kg/ms) and e=0.000045 m). For this pipe determine (a)the Reynolds number and decide weather the flow is laminar or turbulent (b) the head loss, (c) the pressure drop, and (d) the pumping power requirement to overcome this pressure drop.
Problem 7.075 An air-cooled steam condenser is operated with air in cross flow over a square, in-...
Problem 7.075 An air-cooled steam condenser is operated with air in cross flow over a square, in-line array of 400 tubes (N N-20), with an outside tube diameter of 20 mm and longitudinal and transverse pitches of s 60 mm and sr 84 mm, respectively. Saturated steam at a pressure of 2.455 bars enters the tubes, and a uniform tube outer surface temperature of T,-390 K may be assumed to be maintained as condensation occurs tudy ithin the tubes. (a)...
1. At an outdoor lot, there is a black-colored solar heat collection copper pipe. It is 50 meters...
Please answer question 2.
Quastion 1 answer is already provided in the photos.
1. At an outdoor lot, there is a black-colored solar heat collection copper pipe. It is 50 meters long, 10 cm in inner diameter and 10.2 cm in outer diameter. The pipe is set horizontally. Assume that solar radiation in 1.0 kW/m2 shines on the entire surface of the pipe and convert 90% of the solar energy on the pipe into heat. There is water in 25...
summarizr the followung info and write them in your own words and break them into different...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
need ans for the following questions, the last 3 pages for more info. Questions: more info:...
need ans for the following questions, the last 3 pages for more
info.
Questions:
more info:
expermint e/m avr=1.71033*10^11
7 2 points of the following options, which conditions for V or I produce the largest radius of the electron beam path r? Hint: Use e/m= 2V (5/4)*aP/(Nuo Ir) Maximum land Maximum V O Maximum land Minimum V Minimum I and Maximum V Minimum I and Minimum V 8 2 points By what factor will change if the radius of the...
Problem 7.075 An air-cooled steam condenser is operated with air in cross flow over a square, in-line array of 400 tubes (N N-20), with an outside tube diameter of 20 mm and longitudinal and transverse pitches of s 60 mm and sr 84 mm, respectively. Saturated steam at a pressure of 2.455 bars enters the tubes, and a uniform tube outer surface temperature of T,-390 K may be assumed to be maintained as condensation occurs tudy ithin the tubes. (a)...
Please answer question 2.
Quastion 1 answer is already provided in the photos.
1. At an outdoor lot, there is a black-colored solar heat collection copper pipe. It is 50 meters long, 10 cm in inner diameter and 10.2 cm in outer diameter. The pipe is set horizontally. Assume that solar radiation in 1.0 kW/m2 shines on the entire surface of the pipe and convert 90% of the solar energy on the pipe into heat. There is water in 25...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
need ans for the following questions, the last 3 pages for more
info.
Questions:
more info:
expermint e/m avr=1.71033*10^11
7 2 points of the following options, which conditions for V or I produce the largest radius of the electron beam path r? Hint: Use e/m= 2V (5/4)*aP/(Nuo Ir) Maximum land Maximum V O Maximum land Minimum V Minimum I and Maximum V Minimum I and Minimum V 8 2 points By what factor will change if the radius of the...
Most questions answered within 3 hours.
-
A second baseman tosses the ball to the first baseman, who
catches it at the same...
asked 14 minutes ago -
An object rests flat on a tablecloth, which is on top of a
table. Suppose you...
asked 14 minutes ago -
Which of the following will most likely occur as the result of
an unanticipated increase in...
asked 10 minutes ago -
Adria Lopez, owner of Success Systems, decides to prepare a
statement of cash flows for her...
asked 33 minutes ago -
The reach and involvement of the federal government, in terms of
its role in disaster relief,...
asked 36 minutes ago -
Problem: The equilibrium constant, Keq, is 5 x 10^-11 m HCO3
<-----------> H^+ + CO3^-2 Calculate...
asked 43 minutes ago -
Explain how blackbody radiation led to the idea of "quanta."
Will rate answer!
asked 49 minutes ago -
Two noble gases (Ne and He) are injected into the chambers of an
insulated container. Each...
asked 43 minutes ago -
Suppose you purchase a zero coupon bond with a face value of
$1,000, maturing in 18...
asked 48 minutes ago -
Do you believe that the $785,000 amount at the center of the
Overstock-Grant Thornton dispute was...
asked 49 minutes ago -
Find and , the mean and standard deviation of the
sampling distribution of :
μ = 25,...
asked 1 hour ago -
According to the manufacturer of a certain candy, 9% of the
candy produced are red. If...
asked 1 hour ago