a.) If T2 is 299.15 K, T1 is 292.95 K, the area of the room is...
a.) If T2 is 299.15 K, T1 is 292.95 K, the area of the room is 3.75 m^2, thermal conductivity (k) is 1.04, and the thickness of the wall is .283 m. what is the rate of conduction?
b.) If T2 is 299.15 K, T1 is 292.95 K, the mass of the room is 12.01 kg, specific heat is 1000 J/kg˚C. what is the rate of convection?
c.) if If T2 is 299.15 K, T1 is 292.95 K, the rate of emissivity is .91, area of the window is 2.0 m^2, and constant σ = 5.67×10−8 J/s ⋅ m2 ⋅ K4 what is the rate of radiation?
d.) how long would it take for the temperature to change 10˚C with each of the methods above (conduction, convection, radiation)
e.) describe how at least one of the laws of thermodynamics relates to the heating and cooling of the room?
Homework Answers
find the rate of conduction in the room given: External Temperature (T2): 26˚C or 299.15K Average...
find the rate of conduction in the room given: External Temperature (T2): 26˚C or 299.15K Average Temp Room (T1): 19.8˚C or 292.95K Wall thickness (d): .283m Thermal conductivity (k): 1.04 W/m˚C Area (m2): 3.75 m2
An animal's body has a skin temperature of 33 °C and is the room temperature where...
An animal's body has a skin temperature of 33 °C and is the room temperature where the walls are at temperature 29 °C. If the emissivity is 1 and the body area is 1.5 m2. What is the rate of heat transfer by radiation? ( Stefan-Boltzmann constant = 5.67 x 10 -8 J/s m?k4) 42 W 38 W 72 W O 54 W O 63 W
PLEASE ANSWER a,b,c Heat Conduction Heat conduction occurs through any material, represented here by a rectangular...
PLEASE ANSWER a,b,c
Heat Conduction Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or walrus blubber. The temperature of the material is T2 on the left and T1 on the right, where T2 is greater than T1. The rate of heat transfer by conduction is directly proportional to the surface area A, the temperature difference T2 - T1, and the substance's conductivity k. The rate of heat transfer is inversely proportional to the...
PLEASE ANSWER ALL PARTS OF THE QUESTION: Case1, Case 2: a,b ••• Weekly Comprehensive Assign ® V Weekly Comprehensive Ass...
PLEASE ANSWER ALL PARTS OF THE
QUESTION: Case1, Case 2: a,b
••• Weekly Comprehensive Assign ® V Weekly Comprehensive Assign X + a pp varafy.com/lti/v1p1?custom assignment_revision_resource_id=5dcf22405b33ca000406f4ae&custom_attempt_penalties=0&cust... Q € > c S # D Heat Conduction Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or walrus blubber. The temperature of the material is T2 on the left and T1 on the right, where T2 is greater than T1. The rate of heat transfer by...
Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or...
Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or walrus blubber. The temperature of the material is T2 on the left and T1 on the right, where T2 is greater than T1. The rate of heat transfer by conduction is directly proportional to the surface area A, the temperature difference T2 - T1, and the substance's conductivity k. The rate of heat transfer is inversely proportional to the thickness d. Q kA (T2-T)...
10. (10pts) The surface area of an adult human being is 1,8 m2. Suppose a person with a skin tem ...
10. (10pts) The surface area of an adult human being is 1,8 m2. Suppose a person with a skin tem omperature of 34°C is standing with bare skin in a room where the air is 22°C but the walls are 21°C. (ơ 5.67" 104 J / (sm"к"). There is a "dead ai lay ran around you next to your skin that acts as insulation. This dead-air layer is 5.0 mm thick. a) Draw b) What is the person's rate of...
Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or...
Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or walrus blubber. The temperature of the material is T2 on the left and T1 on the right, where T2 is greater than T1. The rate of heat transfer by conduction is directly proportional to the surface area A, the temperature difference T2 - T1, and the substance's conductivity k. The rate of heat transfer is inversely proportional to the thickness d. Q kA (T2-T)...
ro ri = 0.05m 1 A pipe with surface temperature T1 = 380 K is wrapped...
ro ri = 0.05m 1 A pipe with surface temperature T1 = 380 K is wrapped with 0.09 m of glass fiber pipe insulation. The outer surface temperature of the insulation, T2 is equal to 354 K and its emissivity is equal to 0.74. The insulation is also subject to natural convection with a bulk fluid temperature of 298 K and h = 1W/m2-K. For a pipe length of 100 m, and assuming that the room temperature is similar to...
Write a program using a collection of functions to solve simple conduction problems using various forms...
Write a program using a collection of functions to solve simple conduction problems using various forms of the formula H = k * A * (T2-T1)/X H = k * A * (T2-T1)/X Temperature on the other side is 274 K. H = 755.0 W T2 = 298 K k = 0.800 W/m-k T1 = 274 K A = 0.120 m^2 X=0.003 m where H is the rate of heat transfer in watts, k is the coefficient of thermal conductivity...
1.23 Under conditions for which the same room tempera- ture is maintained by a heating or...
1.23 Under conditions for which the same room tempera- ture is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the win- ter but comfortable in the summer. Provide a plausible explanation for this situation (with supporting calcu- lations) by considering a room whose air temperature is maintained at 20°C throughout the year, while the walls of the room are nominally at 27°C and 14°C in the summer and winter, respectively....
An animal's body has a skin temperature of 33 °C and is the room temperature where the walls are at temperature 29 °C. If the emissivity is 1 and the body area is 1.5 m2. What is the rate of heat transfer by radiation? ( Stefan-Boltzmann constant = 5.67 x 10 -8 J/s m?k4) 42 W 38 W 72 W O 54 W O 63 W
PLEASE ANSWER a,b,c
Heat Conduction Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or walrus blubber. The temperature of the material is T2 on the left and T1 on the right, where T2 is greater than T1. The rate of heat transfer by conduction is directly proportional to the surface area A, the temperature difference T2 - T1, and the substance's conductivity k. The rate of heat transfer is inversely proportional to the...
PLEASE ANSWER ALL PARTS OF THE
QUESTION: Case1, Case 2: a,b
••• Weekly Comprehensive Assign ® V Weekly Comprehensive Assign X + a pp varafy.com/lti/v1p1?custom assignment_revision_resource_id=5dcf22405b33ca000406f4ae&custom_attempt_penalties=0&cust... Q € > c S # D Heat Conduction Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or walrus blubber. The temperature of the material is T2 on the left and T1 on the right, where T2 is greater than T1. The rate of heat transfer by...
Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or walrus blubber. The temperature of the material is T2 on the left and T1 on the right, where T2 is greater than T1. The rate of heat transfer by conduction is directly proportional to the surface area A, the temperature difference T2 - T1, and the substance's conductivity k. The rate of heat transfer is inversely proportional to the thickness d. Q kA (T2-T)...
10. (10pts) The surface area of an adult human being is 1,8 m2. Suppose a person with a skin tem omperature of 34°C is standing with bare skin in a room where the air is 22°C but the walls are 21°C. (ơ 5.67" 104 J / (sm"к"). There is a "dead ai lay ran around you next to your skin that acts as insulation. This dead-air layer is 5.0 mm thick. a) Draw b) What is the person's rate of...
Heat conduction occurs through any material, represented here by a rectangular bar, whether window glass or walrus blubber. The temperature of the material is T2 on the left and T1 on the right, where T2 is greater than T1. The rate of heat transfer by conduction is directly proportional to the surface area A, the temperature difference T2 - T1, and the substance's conductivity k. The rate of heat transfer is inversely proportional to the thickness d. Q kA (T2-T)...
ro ri = 0.05m 1 A pipe with surface temperature T1 = 380 K is wrapped with 0.09 m of glass fiber pipe insulation. The outer surface temperature of the insulation, T2 is equal to 354 K and its emissivity is equal to 0.74. The insulation is also subject to natural convection with a bulk fluid temperature of 298 K and h = 1W/m2-K. For a pipe length of 100 m, and assuming that the room temperature is similar to...
1.23 Under conditions for which the same room tempera- ture is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the win- ter but comfortable in the summer. Provide a plausible explanation for this situation (with supporting calcu- lations) by considering a room whose air temperature is maintained at 20°C throughout the year, while the walls of the room are nominally at 27°C and 14°C in the summer and winter, respectively....
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