Letter (b) please? With steps on how to do it would be great. The FIRST heat conductivity for letter (a) is 260.1W, thermal conductivity for glass is 0.75 W/m degrees Celsius
Homework Answers
(b) For the first layer of glass, thermal resistance is
For the air gap,thermal resistance is
The second layer of glass has the same thermal resistance as the first:
The total thermal resistance is
And the rate of conductive heat flow is
Add Answer to:
Letter (b) please? With steps on how to do it would be great.
The FIRST heat...
Rate of heat leaving +rubric for answering question! A window pane that measures 20.0 cm by...
Rate of heat leaving +rubric for answering question!
A window pane that measures 20.0 cm by 15.0 cm is set into the front door of a house. The temperature outdoors is -15.0° C and inside is 22.0° C. If the glass is 0.32 cm thick, at what rate does heat leave the house through the window? If the single paned window is replaced with a double paned window with an air gap of 0.50 cm between the two glass panes,...
Show step by step please Previous problem the example was given with 0.3m^2 now we’re replacing...
Show step by step please
Previous problem the example was given with 0.3m^2 now we’re
replacing it with 0.5 cm air gap between the two glass panes and
the same area.
that problem we showed that a single glass pane window of area 0.3 m2 separating the inside of a house at 22 °C from the outside at 0 °C would allow a heat current H of 1320 Watts. Now, let's replace the single pane window with a double glass...
3. (15 pts) A 0.5 m x 1 m double paned window is made of two...
3. (15 pts) A 0.5 m x 1 m double paned window is made of two silica glass panes 1 cm thick, with air in between. Under steady conditions, linear (constant gradient) temperature profiles are found in both silica panes, as well as the air. a) If the room (and the inner surface of the inner glass pane) is at a temperature of 25°C, while outdoors it is -25°C with a convection coefficient of 18 W m2 k-4, what is...
Compute the ratio of the rate of heat loss through a single-pane window with area 0.15...
Compute the ratio of the rate of heat loss through a single-pane window with area 0.15 m2 to that for a double-pane window with the same area. The glass of a single pane is 4.4 mm thick, and the air space between the two panes of the double-pane window is 6.50 mm thick. The glass has thermal conductivity 0.80 W/m⋅K. The air films on the room and outdoor surfaces of either window have a combined thermal resistance of 0.15 m2⋅K/W
(a) Calculate the rate of heat conduction (in W) through a double-paned window that has a...
(a) Calculate the rate of heat conduction (in W) through a double-paned window that has a 5.00 m2 area and is made of two panes of 0.700 cm thick glass separated by a 1.00 cm air gap. The inside surface temperature is 17.0°C, while that on the outside is −20.0°C. (Hint: There are identical temperature drops across the two glass panes. First find these and then the temperature drop across the air gap. This problem ignores the increased heat transfer...
Consider the rate of heat conduction through a double-paned window that has a 1.45-m2 area and...
Consider
the rate of heat conduction through a double-paned window that has
a 1.45-m2 area and is made of two panes of
0.715-cm-thick glass separated by a 1.25-cm air gap. You can ignore
the increased heat transfer in the air gap due to convection.
Calculate the rate of heat conduction through this window, in
watts, given that the inside surface temperature is 15.0°C, while
the outside temperature is -10.0°C. Make the assumption that the
temperature differences across the two glass...
(a) Calculate the rate of heat conduction (in w) through a double-paned window that has a...
(a) Calculate the rate of heat conduction (in w) through a double-paned window that has a s.00 m2 area and is made of two panes of 0.700 cm thick glass separated by a 1.00 cm air gap. The nside surface temperature is 16.0*C, while that on the outside is-1S.0 C (Hnt: There are identical temperature drops across the two glass panes. First find these and then the temperature drop across the ar gap. This problem ignores the increased heat transfer...
To reduce building heating costs, modern building codes in many parts of the country require the...
To reduce building heating costs, modern building codes in many parts of the country require the use of double-pane windows (sometimes, called "double-glazed" or "thermopane" windows). Ivpically, a double-pane window consists of two panes of glass separated by a space that contains trapped stagnant air. In one design of a double-pane window, each glass layer is 0.7 cm thick, the stagnant air layer is 2 cm thick, and the area is 4 m2 In the living room of a large...
I figured out the first question but im not sure how to answer question 2 and 3?
i
figured out the first question but im not sure how to answer
question 2 and 3?
i
have figured out question 2. Question #3 is what is diffcult to
grasp because i have to guess my Fo #. Fo=time
1. To reduce building heating costs, modern building codes in many parts of the country require the use of double-pane windows (sometimes, called "double-glazed" or "thermopane" windows). Some of In one design of a double-pane window, each glass layer is...
Consider a house that has a 10-m x 20-m base and a 4-m-high wall. All four...
Consider a house that has a 10-m x 20-m base and a 4-m-high wall. All four walls of the house have an R-value of 2.31m2°C/W. The two 10-m x 4-m walls have no windows. The third wall has five windows made of 0.5-cm-thick glass (k = 0.78 W/m-K), 1.2m x 1.8min size. The fourth wall has the same size and number of windows, but they are double paned with a 1.5-cm-thick stagnant air space (k = 0.026 W/m-K) enclosed between...
Rate of heat leaving +rubric for answering question!
A window pane that measures 20.0 cm by 15.0 cm is set into the front door of a house. The temperature outdoors is -15.0° C and inside is 22.0° C. If the glass is 0.32 cm thick, at what rate does heat leave the house through the window? If the single paned window is replaced with a double paned window with an air gap of 0.50 cm between the two glass panes,...
Show step by step please
Previous problem the example was given with 0.3m^2 now we’re
replacing it with 0.5 cm air gap between the two glass panes and
the same area.
that problem we showed that a single glass pane window of area 0.3 m2 separating the inside of a house at 22 °C from the outside at 0 °C would allow a heat current H of 1320 Watts. Now, let's replace the single pane window with a double glass...
3. (15 pts) A 0.5 m x 1 m double paned window is made of two silica glass panes 1 cm thick, with air in between. Under steady conditions, linear (constant gradient) temperature profiles are found in both silica panes, as well as the air. a) If the room (and the inner surface of the inner glass pane) is at a temperature of 25°C, while outdoors it is -25°C with a convection coefficient of 18 W m2 k-4, what is...
Consider
the rate of heat conduction through a double-paned window that has
a 1.45-m2 area and is made of two panes of
0.715-cm-thick glass separated by a 1.25-cm air gap. You can ignore
the increased heat transfer in the air gap due to convection.
Calculate the rate of heat conduction through this window, in
watts, given that the inside surface temperature is 15.0°C, while
the outside temperature is -10.0°C. Make the assumption that the
temperature differences across the two glass...
(a) Calculate the rate of heat conduction (in w) through a double-paned window that has a s.00 m2 area and is made of two panes of 0.700 cm thick glass separated by a 1.00 cm air gap. The nside surface temperature is 16.0*C, while that on the outside is-1S.0 C (Hnt: There are identical temperature drops across the two glass panes. First find these and then the temperature drop across the ar gap. This problem ignores the increased heat transfer...
To reduce building heating costs, modern building codes in many parts of the country require the use of double-pane windows (sometimes, called "double-glazed" or "thermopane" windows). Ivpically, a double-pane window consists of two panes of glass separated by a space that contains trapped stagnant air. In one design of a double-pane window, each glass layer is 0.7 cm thick, the stagnant air layer is 2 cm thick, and the area is 4 m2 In the living room of a large...
i
figured out the first question but im not sure how to answer
question 2 and 3?
i
have figured out question 2. Question #3 is what is diffcult to
grasp because i have to guess my Fo #. Fo=time
1. To reduce building heating costs, modern building codes in many parts of the country require the use of double-pane windows (sometimes, called "double-glazed" or "thermopane" windows). Some of In one design of a double-pane window, each glass layer is...
Consider a house that has a 10-m x 20-m base and a 4-m-high wall. All four walls of the house have an R-value of 2.31m2°C/W. The two 10-m x 4-m walls have no windows. The third wall has five windows made of 0.5-cm-thick glass (k = 0.78 W/m-K), 1.2m x 1.8min size. The fourth wall has the same size and number of windows, but they are double paned with a 1.5-cm-thick stagnant air space (k = 0.026 W/m-K) enclosed between...
Most questions answered within 3 hours.
-
If you titrated 30.0 mL of 0.1 M HCl with 0.1 M NaOH, indicate
the approximate...
asked 8 seconds ago -
NADH passes electrons into the electron transport chain. List
the carriers that would receive the electrons,...
asked 8 minutes ago -
A cylindrical cable with a resistivity of 1.6x10-8 Ω·m and cross
sectional area of 3x10-5 m^2...
asked 8 minutes ago -
True or False.
A consumer with convex preferences who is indifferent between
the bundles (5,2) and...
asked 11 minutes ago -
A diamond's index of refraction for red light, 656 nm, is 2.410,
while that for blue...
asked 24 minutes ago -
Compare HPLC, SPE, and GC. Identify the differences, the
advantages, and the weaknesses of each method.
asked 26 minutes ago -
Characteristic x-rays emitted by potassium have a wavelength of
0.374 nm. What is the energy of...
asked 28 minutes ago -
there is a function to create two random numbers between 1 and
25 and a function...
asked 46 minutes ago -
At a certain temperature, the ?pKp for the decomposition of
H2SH2S is 0.832.0.832.
H2S(g)↽−−⇀H2(g)+S(g)H2S(g)↽−−⇀H2(g)+S(g)
Initially, only...
asked 40 minutes ago -
Part 1.C&A Fast Food has four activities in serving a
customer: greet customer, take order, process...
asked 46 minutes ago -
Which attribute allows you to specify a custom "thumbnail" for
multimedia elements?
asked 1 hour ago -
How much 0.1200 M sodium hydroxide solution is need to titrate
14 mL of a 0.100...
asked 1 hour ago