What is the percentage change in the R-value of the window if double glazed window is...

What is the percentage change in the R-value of the window if double glazed window is used with 6.4 mm and 12.7 mm air in between as compared to single glazed window? Does the resistance increase linearly with the thickness of the space?.

Expert Solution

samet mamat answered 2 years ago

heat transfer The double-glazed window with a height of 1.2m and a width of 2m has...

heat transfer The double-glazed window with a height of 1.2m and a width of 2m has a gap of stagnant air (k = 0.026W / m ° C) with a width of 12mm between the glass of 3mm (k = 0.78W / m ° C). On a day when the outside temperature is kept at 24 ° C, find the continuous heat transfer rate and inner surface temperature in this glass window. (Take the heat transfer coefficients h1 = 10W...

The inner and outer panes of a double-glazed window of dimensions 2 m x 2 m...

The inner and outer panes of a double-glazed window of dimensions 2 m x 2 m and 0.6 cm thick, the temperature is 18 ° C and 6 ° C, respectively. If the 1 cm gap between the two panes is filled with still air, determine the rate of heat transfer through the conduction air layer in kW and the temperatures at the air-glass interfaces. K air = 0.026 ? / ?.? and K glass = 0.85 ? / ?.k

1)(a) Approximate the value of the double integral, ∫ ∫ R x 2 ydA, where R...

1)(a) Approximate the value of the double integral, ∫ ∫ R x 2 ydA, where R = [−1, 5] × [0, 4], using the midpoint rule with m = 3 and n = 2. (b) Evaluate the double integral in the part (a), evaluating the corresponding iterated integral. 2)Let D be a region in the xy plane, between the graphs of y = 2 cos(x) and y = − sin(x), for 0 ≤ x ≤ π 2 . Sketch D...

What have been the percentage change in the value of Bitcoin expressed in U.S. dollars over...

What have been the percentage change in the value of Bitcoin expressed in U.S. dollars over the last 30 days? What has been the one-year change and three-year change in the value of Bitcoin? Do you detect a trend? Is Bitcoin money? Does Bitcoin fulfill the functions of money? If you conclude that Bitcoin is not money what is it? Explain.

31) If the percentage change in the price of a good exceeds the percentage change in...

31) If the percentage change in the price of a good exceeds the percentage change in the quantity supplied, then the supply is A) elastic. B) inelastic. C) unit elastic. D) perfectly elastic. E) perfectly inelastic. 33) When the percentage change in the quantity supplied equals the percentage change in price, the supply is A) elastic. B) inelastic. C) unit elastic. D) perfectly elastic. E) perfectly inelastic. 34) When the percentage change in the quantity supplied is less than the...

Consider a double-pane window of size 48.56×73.55 cm. The window is framed in aluminum. If the...

Consider a double-pane window of size 48.56×73.55 cm. The window is framed in aluminum. If the maximum and minimum outside temperatures are 30.28 and -32.21 °C, respectively, how much gap do you need to allow between the glass panes and the frame?

what is the percentage of the R enantiomer in a sample of Carvone that has a...

what is the percentage of the R enantiomer in a sample of Carvone that has a specific rotation of 30, given that the specific rotation of (R)- CARVONE IS -61

6. How long will it take for $1 to double in value (disregarding any change in...

6. How long will it take for $1 to double in value (disregarding any change in the buying power of the dollar) if: a) The interest rate is 10% compounded annually? b) The interest rate is 10% compounded semiannually? c) The interest rate is 10% ordinary simple interest?

1,If the percentage change in quantity demanded of a good is less than the percentage change...

1,If the percentage change in quantity demanded of a good is less than the percentage change in buyer's income, then the good is said to be income unit elastic. income elastic. price elastic. price inelastic. income inelastic 2. Income elasticity of demand for good A is -0.22. Good A is income __________ and is a(n) __________ good. inelastic; inferior unit elastic; normal elastic; normal elastic; inferior inelastic; normal

What is the CPI? What does the percentage change in the CPI measure? What does the...

What is the CPI? What does the percentage change in the CPI measure? What does the “core CPI” measure? Why might the consumer price index overstate changes in the cost of living? Why have economists defined and used price indexes other than the CPI? What does indexing mean? What is hyper-inflation, and what can cause it?

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