A triangular rod of equal sides of 2 cm each extends 10 cm from a furnace whose wall is 180oC in air at 20oC and h =5 W/m2.K., for rod k=20 W/m.K a. List assumptions and justify selected solution method b. Find heat lost from rod? c. Find efficiency of rod fin?  d. Find rod temperature 5 cm from wall surface?

Q: OA l-m long hollow cylinder of inner radius 5 cm and outer radius 15 cm is considered. The inner…

A: Given data: The length of the cylinder, L = 1 m. The inner radius of the cylinder, ri = 5 cm. The…

Q: The ceiling of a 6 m² area of ​​a cold storage (h = 27 W / m² ° C) where the air temperature is kept…

A: Given data: Area of the ceiling, A = 6 m2. The temperature of the air inside the cold storage, Ti =…

Q: 50 kg  water per minute is to be heated from 30°C to 50°C by passing through a pipe of 2cm diameter.…

A: Find the velocity by using the mass flow rate as follows.

Q: QI/ consider a (0.8m) high and (1.5m) wide double pane widow consisting of two (4mm) thick layers of…

A: Given: The height of the plate is 0.8 m. width of the plate is 1.5 m. The thickness of the glass…

Q: The local heat transfer coefficient of a flat plate that is obtained experimentally is equal to…

A: Given heat transfer coefficient hx=9x2+2ax+B Length of plate L=7 m Temperature of plate T=20∘C…

Q: Consider a solid sphere of radius r=50 cm. The heat is generated steadily inside the sphere at a…

A: Given data: r=50 cmQg=15000 W/m3k=1.58 W/mKh=125 W/m2KT∞=10°C Need to determine the total rate of…

Q: 4. A copper-plate fin of rectangular cross-section having thickness t = 1 mm, height L= 10 mm and…

A: Given Data: The thickness of the fin is, t=1 mm. The length of the fin is, L=10 mm=10 mm×m1000…

Q: water is heated from 15°C to 50°C passing through a tube of 2.5 cm diameter. The velocity of water…

A:

Q: 65 kg/min of water is heated from 20°C to 80°C passing through the duct of 3 cm x 2 cm. The duct is…

A:

Q: Q4/ Steam at T1=320°C flows in a cast iron pipe (k=80W/m. C) whose inner and outer diameters are…

A: As per Bartleby's policy in case of multiple questions I can solve only first one. Please repost…

Q: A 200cc single-cylinder gasoline engine used as a prime mover in a motorcycle bike has a clearance…

A: Option c is correct.

Q: A 100W CPU with a size of 10x 10 cm is cooled at steady state with 25°C water that is pumped through…

A:

Q: saturated steam at 110°C flows inside a steel pipe ( thermal conductivity 50W/mK) having an internal…

A: Basics of heat transfer.

Q: Convective heat transfer coefficient is 15 W/(m*K), surface area of the fin is 2 m^2, the…

A:

Q: Q.6 A 1 cm diameter, 30 cm long fin made of aluminum (k = 237 W/m°C) is attached to a surface at…

A: Given:d=1 cml=30 cmk=237 W/m°CTb=80°CT∞=22°Ch=11 W/m2°C

Q: 2. Consider water is to be heated in a tube equipped with electric resistance heater on its surface.…

A:

Q: A cylindrical vessel (D=98,4 cm) is filled with water (ρ=1000 kg/m3, c=4.187 kJ/kg.K) to a depth of…

A: Given data: - The diameter of the cylindrical vessel is D = 98.4 cm. The specific heat of water is…

Q: The angle embraced is 175° and the coefficient of friction between the belt and the pulley is 0.25.…

A:

Q: Q1: A spherical container of inner radius ri=40 cm, outer radius r2-41 cm (k=1.2 W/m°C) is used to…

A: Assumption:- 1) Heat Transfer takes place in One dimension 2) Material is isotropic

Q: A steel plate of thermal conductivity 50 W/mK and thickness 10 cm passes a heat flux of 30 kW/m² by…

A: Given, Thermal conductivity = k = 50 W/mK Thickness = Δx = 10 cm = 0.1 m Heat flux = q = 30 kW/m2 =…

Q: 24. Consider 10 solar collectors, of dimension 2m x Im, and an efficiency of 75 percent, used to…

A: Given data . Number of solar collectors = 10 solar collectors dimension = 2m x Im an efficiency =…

Q: A pin fin (L= 38 mm , d = 3.0 mm) attached to a hot surface, Ts = 159°C with a convection heat…

A:

Q: A:Find the amount of heat transferred through an iron fin of thickness 5 mm, length 10 cm and width…

A: Since you have asked a multi-question, thus we can provide you the solution to the first question…

Q: A pure copper cube 3 cm on each side is placed in a 15°C stream of water.If the initial temperature…

A:

Q: The refrigerator shown in the figure steadily receives a power input of 0.15 kW while rejecting…

A: Given data

Q: A fluíd enters a machine at 167.4 m/s, 881.6 kPa, and with a specific vólume of 0.398 m/kg. The…

A:

Q: A refrigerator is connected to a generator powered by a fuel with a calorific value of 35000 kJ/kg…

A: A Refrigerator works by pushing refrigerant inside itself which is continuously changing from a…

Q: A camper has a propane-powered refrigerator. The refrigerator consumes approximately 0.50 kg of…

A:

Q: QI/ An open belt running over two pulleys 24 cm and 60 cm diameters connects two parallel shafts 3 m…

A: Diameter D1 = 60 cm Diameter D2 = 24 cm Power P = 3.75 kW N2 = 300 rpm friction coefficient = 0.3…

Q: e tube has an external diameter of 5 cm, a wall thickness of 1 cm and a length of 1.5 m. The ambient…

A: k =55W/m.kh =190W/m.kT1 =175°CT2 =27°CD°=5cmt = 1cmH =20W/m2L = 1.5 m  as we know   resistance by…

Q: Design a solar chimney to cover 80% of total heating losses in February, where U value for the…

A: Given, Overall heat transfer coefficient, U=0.4w/m2KTotal wall area,A=60m2Average inside…

Q: A 100W CPU with a size of 10x 10 cm is cooled at steady state with 25°C water that is pumped through…

A:

Q: A solar water heating plant is using a flat-plate solar collector with an area  A of 28 m2. The…

A: The useful heat rate from the solar collector can be obtained using the formula given below as-…

Q: A Spherical Container Is Made Of Plastic (K=2 W/MK, Ρ=5000 Kg/M) And Has Inner And Outer Radii Of 10…

A: Given that, Thermal conductivity ofplastic, k=2 W/m.K,Density of plastic, ρ=5000 kg/m3,Inner radius,…

Q: A glass container with an insulating cover with a surface area of (R + 150) cm² and (R+10) mm thick…

A:

Q: An apple is placed in a freezer at -15 ° C. In the beginning, the heat transfer rate on the surface…

A:

Q: A large factory furnace maintained at 170 ∘C at its outer surface is wrapped in an insulating…

A: Given:- Thermal conductivity=5.50×10−2 W/(m⋅K) Q=-140 J/sTf=170°C=443KTo=43°C=316KTo find:-Entropy…

Q: 2. A steel plate of k=50W/mK and thickness 10cm passes a heat flux by conduction of 25kw/m2. If the…

A: Given, Thermal conductivity = k = 50 W/mK Thickness = Δx = 10 cm = 0.1 m Heat flux = q = 25 kW/m2 =…

Q: Heat is generated inside a solid cylinder (D=30 cm, L=90 cm, k=5 W/m.K ) at q=6x104 W/m2. Determine…

A:

Q: The total heat gain through a roof (4 in concrete with 2 in insulation, U roof=0.4 Btu/ hr. ft2 F),…

A: Given that, Total heat gain through a roof=7112 BtuhU=0.4 Btu/hr·ft2°FTout=105 °FTin=75…

Q: A square pin fin (w=0.6 mm, L=33 mm) is attached to hot surface [87 mm * 69 mm] Ts= 172°C with…

A:

Q: Outer surface of a tube-steel oven is at 110 oC. What would be the heat transfer rate to the…

A:

Q: Design a solar chimney to cover 75% of total heating losses, where U value for the chimney=0.5…

A: Given that, Heat transfer coefficient, U=0.5 W/m2·K,Total wall area, A=70 m2,Outside temperature at…

Q: A thin board of 0.5 cm thickness is exposed to a fluid of T, = 22°C and h = 30 W/m².K from one side…

A:

Q: Calculate the size of air-conditioning device (ton of refrigeration) required to cool a room of 8 m…

A: Given data: Room Volume V=8m×5m×4m Total heat load after insulation Q1=7 kW Total heat load before…

Q: 2- A hollow spherical shell (r; = 0.5 m, ro = 0.7 m, k = 40 (1 + 0.001 T) stores a liquid so that…

A:

Q: 2. A steel plate of k=50W/mK and thickness 10cm passes a heat flux by conduction of 25kW/m2. If the…

A:

Q: Cp=1.01 kJ/kg.C, : p = 1.128 kg/ m3, Pr=0.7 find 1-The average heat transfer coefficient. 2- Total…

A: Here, we have to use correlations. For solution refer below images.

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.