A flat plate is of planar dimension 1 m x 0.75 m. For parallel laminar flow...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A flat plate is of planar dimension 1 m x 0.75 m. For parallel laminar flow over the plate, calculate the ratio of the average heat transfer coefficients over the entire plate, hL1/hL2, for two cases. In case 1, flow is in the short direction (L 0.75 m); in case 2, flow is in the long direction (L = 1 m). Which orientation will result in the larger heat transfer rate? A flat plate is of planar dimension 1 m x 0.75 m. For parallel laminar flow over the plate, calculate the ratio of the average heat transfer coefficients over the entire plate, hL1/hL2, for two cases. In case 1, flow is in the short direction (L 0.75 m); in case 2, flow is in the long direction (L = 1 m). Which orientation will result in the larger heat transfer rate?
Expert Answer:
Answer rating: 100% (QA)
Solution Here Li 015 m Lz Nu C Re2 Par 2 43 Assume that Nu Rei 2 2 ... View the full answer
Related Book For
Posted Date:
Students also viewed these mechanical engineering questions
-
Average heat transfer coefficients (Fig. 14A.1), Ten thousand pounds per hour of an oil with a heat capacity of 0.6 Btu/lb m F is being heated from 100F to 200F in the simple heat exchanger shown in...
-
A flat plate is in a solar orbit 150,000,000 km from the sun. It is always oriented normal to the rays of the sun and both sides of the plate have a finish which has a spectral absorptance of 0.95 at...
-
A flat plate is placed in a supersonic wind tunnel with air flowing over it at a Mach number of 2.0, a pressure of 25,000 N/m2, and an ambient temperature of ??15?C. If the plate is 30 cm long in the...
-
Consider the following excerpts from a Wall Street Journal article on Burger King (Beatty, 1996): Burger King intends to bring smiles to the faces of millions of parents and children this holiday...
-
Given the following network, with activity times in weeks, determine the earliest and latest activity times and the slack for each activity. Indicate the critical path and the projectduration: 3 15...
-
Refer to Exercise 16. Does it appear that the drugstore customers' purchases vary by age group-in other words, are the mean purchases of customers in the different age groups equal? Use a 5% level of...
-
For the most part, chairs change regularly, but the chief executive stays in place for a longer period of time. How can this situation affect the dynamics of the two positions?
-
How much acquisition and integration cost was included within GAAP Other (expense) income, net for the 6 months ended December 31, 2018? $0 $1,755 $2,613 $4,368
-
A favorable variance Select answer from the options below indicates that the company is not operating in an optimal manner. implies a positive result if quality control standards are met. means that...
-
What is activity-based costing, and what are its potential benefits?
-
Two samples of electronic components were tested in two different testing conditions see results below. The first test at 353K was suspended after 250 hrs. Estimate the 90% two sided intervals for...
-
An insulated, thin walled tube, \(60 \mathrm{~m}\) long and \(25 \mathrm{~mm}\) inside diameter, is to deliver \(65^{\circ} \mathrm{C}\) hot water to a house. The water enters the tube at...
-
Repeat the External and Internal Tube Flow example (example 14.7) using the Churchill/ Zajic expression for \(\overline{N u_{d}}\). How much does the outlet temperature change compared with the...
-
Water at \(10^{\circ} \mathrm{C}\) is in crossflow over the tubes of a shell-and-tube heat exchanger. The mass flow rate is \(1 \mathrm{~kg} / \mathrm{s}\left(6 \mathrm{~m} / \mathrm{s} ight.\)...
-
Natural convection and radiation are often linked because they can be of the same order of magnitude at temperatures around room temperature. In air, for example, assuming graybodies of emissivity...
-
Explain why the net heat exchange between two blackbodies at temperatures \(T_{1}\) and \(T_{2}\), \(q_{12}(B B)\), is greater than the net heat exchange between two graybodies, \(q_{12}(G B)\), at...
-
If the fragment where we need to insert key is NULL, then you should dynamically allocate space for that fragment (an array of fragment_length integers), initialize each cell in that new fragment to...
-
What is the role of business risk analysis in the audit planning process?
-
Velocity, temperature, and pressure changes in a shock wave, air at 1 arm and 70F is flowing at an upstream Mach number of 2 across a stationary shock wave. Calculate the following quantities,...
-
Velocity distribution in a tube, you have received a manuscript to referee for a technical journal. The paper deals with heat transfer in tube flow. The authors state that, because they are concerned...
-
Torricelli's equation for efflux from a tank (Fig. 3B.14) a large uncovered tank is filled with a liquid to a height h. Near the bottom of the tank, there is a hole that allows the fluid to exit to...
-
Morgan Corporation has only common stock outstanding. The firm reported earnings per share of \(\$ 6.00\) for the year. During the year, Morgan paid dividends of \(\$ 2.10\) per share. At year end...
-
The notes to financial statements present information on significant accounting policies, complex or special transactions, details of reported amounts, commitments, contingencies, segments, quarterly...
-
Are stages with well-mixed liquids less or more efficient than stages with plug flow of liquid (assume \(\mathrm{K}_{\mathrm{G}} \mathrm{a}\) are the same)? Explain your result with a physical...
Study smarter with the SolutionInn App