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below for guests and 20 °C 0.024m 0.05m 0.024 The left and right surfaces of the...
An industrial freezer is designed to operate with an internal air temperature of -20 °C when...
An industrial freezer is designed to operate with an internal air temperature of -20 °C when the external air temperature is 25 °C and the internal and external heat transfer coefficients are 12 W/m2K and 8 W/m2.K respectively The walls of the freezer have a composite construction, comprising of an inner layer of plastic (k = 1 W/m•K, and thickness of 3 mm), and an outer layer of stainless steel (k = 16 W/mok, and thickness of 1 mm). Sandwiched...
Consider the following composite wall of a building. It is made out of plaster board (Lp...
Consider the following composite wall of a building. It is made out of plaster board (Lp 0.85 W/mK), glass fibre insulation (Lb-160 mm, k = 0.050 W/mK) and plywood (1,-40 m m, k = 0.70 W/mK) as shown below. On a certain day, the convective heat transfer coefficients inside and outside of the building are 35 W/m2K and 65 W/m2 K respectively. The inside and outside temperatures are 24°C and 36°C respectively. The wall has a total surface area of...
Consider a plate-type fin made of AISI 1010 steel attached to an isothermal wall which is...
Consider a plate-type fin made of AISI 1010 steel attached to an isothermal wall which is maintained at 250 C. The fin has a length of 150mm, a thickness of 25mm and a width w. Argon at 20 C blows over the fin giving a convective heat transfer coefficient of 25 W/m-K. Calculate heat transfer rate per unit width using the graphical method and checking the answer with the appropriate equation.
Consider a plate-type fin made of AISI 1010 steel attached to an isothermal wall which is...
Consider a plate-type fin made of AISI 1010 steel attached to an isothermal wall which is maintained at 250 C. The fin has a length of 150mm, a thickness of 25mm and a width w. Argon at 20 C blows over the fin giving a convective heat transfer coefficient of 25 W/m-K. Calculate heat transfer rate per unit width using the graphical method and checking the answer with the appropriate equation
blem 4 (20 pts) A square chip that is 12.7mm on a side has a maximum allowable chip operating temperature -75°C. To dissipate heat produced in the chip, a 4 x 4 array of copper (k-400 W/m.K) pin fins...
blem 4 (20 pts) A square chip that is 12.7mm on a side has a maximum allowable chip operating temperature -75°C. To dissipate heat produced in the chip, a 4 x 4 array of copper (k-400 W/m.K) pin fins is proposed to be etallurgically joined to the outer surface of the chip. The convection coefficient is h-250 W/m'K and ambient air mperature isTo-20°C. The pin fin dimeter is D,-1.5mm and length is L,-16mm. Assuming steady-state uniform chip temperature Te-75°C and...
A house has a composite wall of wood, fiberglass insulation, and plaster board, as indicated in...
A house has a composite wall of wood, fiberglass insulation, and
plaster board, as indicated in the sketch. On a cold day, the
temperature and the convection heat transfer coefficients are T∞,i
=20°C, hi =30 W/m2K and T∞,o=−15°C, ho =60 W/m2K. The wall surface
area is 350 m2. Determine the total heat loss through the wall.
Conductivities are given as b k =0.038 W/m.K, s k =0.012 W/m.K, p k
=0.17 W/m.K
Glass fiber blanket (28 kg/m3), kn Plaster board,...
finite element method 2. Aluminum fins with rectangular profiles (5 mm wide and 1 mm thick) are used to remove heat...
finite element method
2. Aluminum fins with rectangular profiles (5 mm wide and 1 mm thick) are used to remove heat from a surface whose temperature is 150°C. The temperature of ambient air is 20°C. The thermal conductivity of aluminium is 168 W/m.K. The natural convective coefficient associated with the surrounding air is 35 W/m2.K. The fins are 150 mm long and the heat loss from the tip of the fin may be neglected. (a) Determine the temperature distribution along...
G4 Problem Statement: Circular fins of uniform cross section, with diameter of 14 mm and length 7...
G4 Problem Statement: Circular fins of uniform cross section, with diameter of 14 mm and length 70 mm are attached to the wall with surface temperature o C. The fin is made of material with thermal conductivity of 210 W/mk, and exposed to an ambient air condition of 24 °C and the convection heat transfer coefficient of 190 W/m2k. f 300 1- Plot the temperature variation for the following boundary conditions a- Infinitely long fin b- Adiabatic fin tip c-...
ONLY NEED THE SOLUTION TO PARTS E AND F!!!!!!! PLEASE Analyzing a Fin Consider an infinitely...
ONLY NEED THE SOLUTION TO PARTS E AND F!!!!!!! PLEASE
Analyzing a Fin Consider an infinitely long fin with a square cross section with 5mm. The base of the fin is held at a fixed temperature of To = 100°C and air is passing by the fin at T = 20°C with a convective heat transfer coefficient of h - 55 W/m-K. The fin is made from aluminum with a thermal conductivity of k- 180 W/mK. T. = 20°C n...
I. Design of Fins (35 pt). A stripping process produces a hot fluid (80°C) that flows...
I. Design of Fins (35 pt). A stripping process produces a hot fluid (80°C) that flows inside copper pipe of 20 cm diameter (the thickness of the pipe wall is negligible). Outside the pipe, there is air flow at ambient temperature (20 °C). In order to recirculate the fluid produced, it is necessary to cool it down. This can be achieved by installing ten circular fins per meter of pipe (see figure below). These fins have a thickness of 0.1...
An industrial freezer is designed to operate with an internal air temperature of -20 °C when the external air temperature is 25 °C and the internal and external heat transfer coefficients are 12 W/m2K and 8 W/m2.K respectively The walls of the freezer have a composite construction, comprising of an inner layer of plastic (k = 1 W/m•K, and thickness of 3 mm), and an outer layer of stainless steel (k = 16 W/mok, and thickness of 1 mm). Sandwiched...
Consider the following composite wall of a building. It is made out of plaster board (Lp 0.85 W/mK), glass fibre insulation (Lb-160 mm, k = 0.050 W/mK) and plywood (1,-40 m m, k = 0.70 W/mK) as shown below. On a certain day, the convective heat transfer coefficients inside and outside of the building are 35 W/m2K and 65 W/m2 K respectively. The inside and outside temperatures are 24°C and 36°C respectively. The wall has a total surface area of...
blem 4 (20 pts) A square chip that is 12.7mm on a side has a maximum allowable chip operating temperature -75°C. To dissipate heat produced in the chip, a 4 x 4 array of copper (k-400 W/m.K) pin fins is proposed to be etallurgically joined to the outer surface of the chip. The convection coefficient is h-250 W/m'K and ambient air mperature isTo-20°C. The pin fin dimeter is D,-1.5mm and length is L,-16mm. Assuming steady-state uniform chip temperature Te-75°C and...
A house has a composite wall of wood, fiberglass insulation, and
plaster board, as indicated in the sketch. On a cold day, the
temperature and the convection heat transfer coefficients are T∞,i
=20°C, hi =30 W/m2K and T∞,o=−15°C, ho =60 W/m2K. The wall surface
area is 350 m2. Determine the total heat loss through the wall.
Conductivities are given as b k =0.038 W/m.K, s k =0.012 W/m.K, p k
=0.17 W/m.K
Glass fiber blanket (28 kg/m3), kn Plaster board,...
finite element method
2. Aluminum fins with rectangular profiles (5 mm wide and 1 mm thick) are used to remove heat from a surface whose temperature is 150°C. The temperature of ambient air is 20°C. The thermal conductivity of aluminium is 168 W/m.K. The natural convective coefficient associated with the surrounding air is 35 W/m2.K. The fins are 150 mm long and the heat loss from the tip of the fin may be neglected. (a) Determine the temperature distribution along...
G4 Problem Statement: Circular fins of uniform cross section, with diameter of 14 mm and length 70 mm are attached to the wall with surface temperature o C. The fin is made of material with thermal conductivity of 210 W/mk, and exposed to an ambient air condition of 24 °C and the convection heat transfer coefficient of 190 W/m2k. f 300 1- Plot the temperature variation for the following boundary conditions a- Infinitely long fin b- Adiabatic fin tip c-...
ONLY NEED THE SOLUTION TO PARTS E AND F!!!!!!! PLEASE
Analyzing a Fin Consider an infinitely long fin with a square cross section with 5mm. The base of the fin is held at a fixed temperature of To = 100°C and air is passing by the fin at T = 20°C with a convective heat transfer coefficient of h - 55 W/m-K. The fin is made from aluminum with a thermal conductivity of k- 180 W/mK. T. = 20°C n...
I. Design of Fins (35 pt). A stripping process produces a hot fluid (80°C) that flows inside copper pipe of 20 cm diameter (the thickness of the pipe wall is negligible). Outside the pipe, there is air flow at ambient temperature (20 °C). In order to recirculate the fluid produced, it is necessary to cool it down. This can be achieved by installing ten circular fins per meter of pipe (see figure below). These fins have a thickness of 0.1...
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