FREE Trial

If in Problem 1.11 the outer air temperature is ??2?C, calculate the convective heat transfer coefficient between the outer surface

Question:

If in Problem 1.11 the outer air temperature is ??2?C, calculate the convective heat transfer coefficient between the outer surface of the window and the air assuming radiation is negligible. Problem 1.11: Calculate the heat loss through a 1 m by 3 m glass window 7 mm thick if the inner surface temperature is 20?C and the outer surface temperature is 17?C. Comment on the possible effect of radiation on your answer.GIVENWindow: 1 m by 3 mThickness (L) = 7 mm = 0.007 mSurface temperaturesInner (Ti) = 20?C and outer (To) = 17?CThe rate of heat loss = 1040W (from the solution to Problem 1.11)The outside air temperature = ??2?CASSUMPTIONSThe system is in steady state and radiative loss through the window isnegligible

image
Transcribed Image Text:

L= 0.007 m To=-2°C Як To= 17°C Tj= 20°C

This problem has been solved!


Do you need an answer to a question different from the above? Ask your question!

Step by Step Answer:

Answer rating: 69% (13 reviews)

For steady state the rate of heat transfer by convection Equation …View the full answer


answer-question
Answered By
tutor-profile-image
GERALD KAMAU
non-plagiarism work, timely work and A++ work
4.40+ 6+ Reviews 11+ Question Solved
Related Book For  answer-question
Principles of heat transfer

Principles of heat transfer

ISBN: 978-0495667704

7th Edition

Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn

See More Books
View Solution
Create a free account to access the answer
Cannot find your solution?
Post a FREE question now and get an answer within minutes. * Average response time.
Question Posted: November 26, 2011 11:13:25
See More Questions

Students also viewed these Mechanical Engineering questions

Q:
Calculate the heat loss through a 1-m by 3-m glass window 7 mm thick if the inner surface temperature is 20?C and the outer surface temperature is 17?C. Comment on the possible effect of radiation on...
A:
The heat loss by conduction through the window is given by Equation 1 2......
Q:
The heat transfer coefficient between a surface and a liquid is 10 Btu/(h ft2 ?F). How many watts per square meter will be transferred in this system if the temperature difference is 10?C?GIVENThe...
A:
The rate of convective heat transfer per unit area......
Q:
A method for measuring the convective heat transfer from spheres has been proposed. A 20 m diameter copper sphere with an embedded electrical heater is to be suspended in a wind tunnel. A...
A:
Equation 7 9 can be used to estimate the heat transfer coefficient on the sphe......
Q:
Consider the circuit shown in (Figure 1). Suppose that v 240 V,v 2 110 V, and v 3 450 V Figure 1 of 1 a) Use the mesh-current method to find the magnitude of the total power developed in the circuit...
A:
Click to View...
Q:
Corporate reputation is said to be the result of past and present actions and results. Discuss corporate reputation.
A:
The corporate identity should mirror or match corporate image If corpor......
Q:
Wabash Company specializes in refurbishing exterior painted surfaces that have been hard hit by humidity and insect debris. It uses a special technique, called pressure cleaning, before priming and...
A:
1 Variable costs Skilled labor Fixed costs Depreciation paint spraying equipment Unskilled labor Lea......
Q:
What improvement can you make in the process shown in Figure 2.17? Data from figure 2.17 Process: Changing engine oil Subject: Mechanic Beginning: Direct customer arrival Ending: Total charges,...
A:
Your analysis should verify the following three ideas for improvement You......
Q:
Given the following diagram, determine the total system reliability if the individual component reliabilities are: A = 0.94, B = 0.90, and C = 0.87. B A
A:
First find the reliability of the parallel subsystem BC Reliabi......
Q:
- In Kleinberg's model, for a 3-dimensional grid, if we have an exponent q links distributed? O There will be a large fraction of links covering short distances The link distribution does not depend...
A:
The detailed answer for the above question is provided below Th......
Q:
Compare a companys strategic plan with a football teams game plan.
A:
A strategic plan is in essen ce a comp......
Q:
A heat flux meter at the outer (cold) wall of a concrete building indicates that the heat loss through a wall of 10 cm thickness is 20 W/m2. If a thermocouple at the inner surface of the wall...
A:
The rate of heat transfer for steady state one dimensiona......
Q:
Using Table 1.4 as a guide, prepare a similar table showing the order of magnitudes of the thermal resistances of a unit area for convection between a surface and various fluids.GIVENTable 1.4??The...
A:
The thermal resistance for convection is defined by Equation 1 14 as T......
Q:
Are older people more likely to vote? One way to answer this question is to conduct a test to determine whether there is enough evidence to conclude that age (AGE) and intention to vote (DEFINITE)...
A:
t test of or 1 H 0 p 0 H 1......
Q:
Databases play a huge role in managing and using data in applications and websites. Think about how many times each day or each week you interact with databases: when you sign in to your email...
A:
1 Differences between a Database and a Spreadsheet Database Structure Databases are structured collections of data organized into tables with each table containing related data Data is stored in rows......
Q:
Jack Pickle decided to start a small business as a corporation. His initial investment was $4,000 cash in exchange for common stock. Demonstrate how to record this transaction in the accounting...
A:
When Jack Pickle starts a small business as a corporation and invests 4 000 cash in......
Q:
A foreign exchange dealer in London normally provides quotes for spot, one month, three months, and six months. When you ask over the telephone for current quotations for the Argentine peso (ARS)...
A:
a Selling ARS 1 000 000 spot The given quote for the Argentine peso ARS against the U S dollar is 4 0040 to 200 for the spot rate This means I can sel......
Q:
A palindrome is a non-empty string that reads the same back- ward as forward. Examples of palindromes include: civic, racecar, aiboh- phobia; all strings of length 1 are palindromes. We would like to...
A:
let s break down the problem of finding the length of the longest palindrome substring in a given string using dynamic programming a Developing a Recu......
Q:
Account Receivables can be an important asset on the Balance Sheet, especially for a company that sells a lot on credit. Our client just started credit sales this year! What is the appropriate way to...
A:
The appropriate way to report Accounts Receivable on the Balance Sheet in the Financial Statements is at the net amount after considering an allowance......
Q:
In Exercises 2942, solve each system by the method of your choice. [2x + y = 18 {xy = 4
A:
The substitution method is used here to solve the system 2x y 18 xy 4 Sol......
Q:
Recall that Chapter 8 described the binary search algorithm for finding a particular entry in an ordered list. The idea behind binary search is to begin looking in the exact center of the list. If...
A:
32 6 halvings 64 7 h......
Q:
An expression for the actual water vapor partial pressure in terms of wet-bulb and dry-bulb temperatures, referred to as the Carrier equation, is given as where. Pv, Pgw, and P are the actual partial...
A:
KNOWN Wet bulb and dry bulb temperature for water vapor air mixture FIND a Partial pressure PA and r......
Q:
A wet-bulb thermometer consists of a mercury-in-glass thermometer covered with a wetted (water) fabric. When suspended in a stream of air, the steady-state thermometer reading indicates the wet-bulb...
A:
KNOWN Wet and dry bulb temperatures FIND Relative humidity of air SCHEMATIC Air Doo Too 45C Twb 25C......
Q:
An industrial process involves evaporation of a thin water film from a contoured surface by heating it from below and forcing air across it. Laboratory measurements for this surface have provided the...
A:
KNOWN Heat transfer correlation for a contoured surface heated from below while experiencing air flow across it Flow conditions and steady state tempe......
The Endocrine System At A Glance 3rd Edition - ISBN: 1118294009 - Free Book