Consider two diffuse surfaces A 1 and A 2 on the inside of a spherical enclosure of radius R Using the following methods derive an expression for the view factor F 12 in terms of A 2 and R (a) Find F 12 by beginning with the expression F ij q i j AiJi (b) Find F 12 using the view factor integral, E...

KNOWN Two small diffuse surfaces A and A2 on the inside of a spheric ...

Consider two diffuse surfaces A 1 and A 2 on the inside of a spherical enclosure of

Question:

Consider two diffuse surfaces A 1 and A 2 on the inside of a spherical enclosure of radius R. Using the following methods derive an expression for the view factor F₁₂ in terms of A₂ and R.

(a) Find F₁₂ by beginning with the expression F_ij = q_i?j?/ AiJi.

(b) Find F₁₂ using the view factor integral, Equation 13.1.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Heat and Mass Transfer

ISBN: 978-0471457282

6th Edition

Authors: Incropera, Dewitt, Bergman, Lavine

See More Books

Question Posted: Mar 02, 2011 06:00 AM

See More Questions

With reference to Fig. 5-10, (a) Derive an expression for the vector magnetic potential A at a point P located at a distance r from the wire in the xy plane, and then (b) Derive B from A. Show that...
Derive an expression for the reaction rate, r, in terms of S, E and the constants shown for the following reaction sequence, which includes substrate inhibition:
Using Eq. (6.2), derive an expression for the focal length of a homogeneous transparent sphere of radius R. Locate its principal points. (n 1)d (n 1) R1 (6.2) R2 nRR2
a) Discuss the effect of solvent polarity on Rf-values. b)Explain how the Rf (Retention Factor)-values can be in agreement or disagreement with the like dissolves like principle?
Discuss the relative use of nonverbal behaviors, such as silent periods, interruptions, facial gazing, and touching by people from various cultural backgrounds. How does this affect the negotiation...
Why is it difficult for small banks and thrifts to measure credit risk using modern portfolio theory?
A proton is accelerated through a potential difference of $120 \mathrm{~V}$, as shown in Figure P27.55, and fired into a chamber. There is no electric field in the chamber, but there is a...
You are the manager of BlackSpot Computers, which competes directly with Condensed Computers to sell high-powered computers to businesses. From the two businesses perspectives, the two products are...
15 16 17 18 In 1987, an agreement was formulated by the United Nations Environment Programme (UNEP) to freeze the production of "X" to prevent depletion of "Y". "X" and "Y" respectively referred here...
On 01 February 2017, Paul Ltd acquired 720,000 ordinary shares of Sam Ltd and as a result Paul Ltd holds 80% shares in Sam Ltd. The purchase consideration was as follows: Cash paid $ 550,000 A...
Consider the parallel planes of infinite extent normal to the page having opposite edges aligned as shown in the sketch. (a) Using appropriate view factor relations and the results for opposing...
As shown in the sketch, consider the disk A 1 located coaxially 1m distant, but tilted 30? off the normal, from the ring-shaped disk Az. What is the irradiation on A 1 due to radiation from A 2 ,...
Summarize why breakeven is a critical concept for any organization.
The following sales and purchases were made by J. Flan Ltd during the month of May 2012. Enter up the Sales and Purchases Day Books, Sales and Purchases Ledgers and the General Ledger for the month...
Think of some highly differentiated brands. Do they have branded differentiators? If not, how did they achieve differentiation? Will it be lasting?
A business had always made an allowance for doubtful debts at the rate of 2 per cent of accounts receivable. On 1 January 2011 the amount for this, brought forward from the previous year, was 300....
Before reading the rest of this section, write a brief commentary on the most significant features of Table 5.14. Table 5.14 Comparison of profit, using absorption costing and marginal costing...
Suggest several reasons why health care spending is higher in the United States than in other countries. Is the fact that the U.S. population spends more per capita on health care than people in any...
What are the key barriers to investing in foreign stocks? How can they be overcome?
Evaluate how many lines there are in a true rotational spectrum of CO molecules whose natural vibration frequency is w = 4.09 1014 s1 and moment of inertia I = 1.44 1039 g cm2.
The standard enthalpy of formation for glucose [C 6 H 12 O 6 (s)] is -1273.3 kJ/mol. What is the correct formation equation corresponding to this H f ? a) 6 C(s, graphite) b) 6 C(s, graphite) +...
The 35C water flow of Fig P3.172 discharges to sea-level standard atmosphere. Neglecting losses, for what nozzle diameter D will cavitation begin to occur? To avoid cavitation, should you increase or...
The horizontal wye fitting in Fig P3.173 splits the 20°C water flow rate equally, if Q1 = 5 ft3/s and p1 = 25 lbf/in2 (gage) and losses are neglected, estimate (a) p2, (b) p3, and (c) the vector...
In Fig P3.174 the piston drives water at 20°C. Neglecting losses, estimate the exit velocity V2 ft/s. If D2 is further constricted, what is the maximum possible value of V2? D2-4 in Water 1)
QUESTION #2 : The age of the internet as well as the ensuing rise of social networking in the form of FaceBook, Instagram, Twitter and TikTok has significantly changed the way individuals process and...
Question 5 In 50 words or more, explain how advertising is implemented through each type of media listed below. Advertising Media Types How Advertising is Implemented Through Each Type of Media i....
1. Research and outline the Lean Method and how it applies to marketing a products. Explain in one fifty words. 2. Outline your understanding of market research and what is should include: Be...

Consider two diffuse surfaces A 1 and A 2 on the inside of a spherical enclosure of

Question:

Spherical surface A2

Step by Step Answer:

KNOWN Two small diffuse surfaces A and A2 on the inside of a spheric...View the full answer

Fundamentals of Heat and Mass Transfer

Students also viewed these Mechanical Engineering questions