Long aluminum wires of diameter 5 mm (r = 2702 kg/m3 and cp = 0.896 kJ/kg·°C) are extruded at a temperature of 350°C and are cooled to 50°C in atmospheric air at 25°C. If the wire is extruded at a velocity of 8 m/min, determine the rate of heat transfer from the wire to the extrusion room.

Q: A heat conducting rod, 0.90 m long, is made of an aluminum section that is 0.10 m long, and a copper…

A: Given: Length of aluminum section LAl=0.10 m, Length of copper section LCu=0.80 m, Cross sectional…

Q: A substance has a melting point of 20°C and a heat of fusion of 3.9 x 104 J/kg. The boiling point is…

A:

Q: A cylindrical copper rod of length 1.2 m and cross-sectional area 4.8 m2 is insulated to prevent…

A: Given Length of copper rod L= 1.2 m Area of cross section of cylindrical rod A= 4.8 m2 Temperature…

Q: The north wall of an electrically heated home is 20 ft long, 10 ft high, and 1 ft thick, and is made…

A: The rate of the heat loss through the wall is

Q: A picture window has dimensions of 1.7 m by 2.2 m and is made of glass 6 mm thick. On a winter day,…

A:

Q: ice cube of mass 500 g and at 0 degrees * C is dropped into a cup containing 1kg of water at 70…

A:

Q: Water enters a 2.5-cm-internal-diameter thin copper tube of a heat exchanger at 15°C at a rate of…

A:

Q: A steel sphere of diameter 4.0025 cm is to be passed through a brass loop of inner. diameter 4.0012…

A:

Q: Two concentric spheres of diameters 15 cm and 25 cm are separated by air at 1 atm pressure. The…

A: The distance between two spheres,   Substitute,

Q: A certain double-pane window consists of two glass sheets, each 80 cm x 80 cm x 0.30 cm, separated…

A:

Q: Two concrete spans of a 220-m-long bridge are placed end to end so that no room is allowed for…

A: Given terms: Length of bridge,      Temperature change, Coefficient of linear expansion,

Q: At 15°C, a rod is exactly 23.35 cm long on a steel ruler. Both the rod and the ruler are placed in…

A:

Q: During heavy exercise, the body pumps 2.00 L of blood per minute to the surface, where it is cooled…

A: Heat transfer is given by,  Q=mS∆T Here,  m is mass and S is specific heat of blood and ∆T is change…

Q: Plz fast hand written plzxzzzzzz...plz fast plzzzzz

A: given data: internal diameter of tube=5cm outer diameter of tube=7.6cm k=15W/m degree C h=400 W/M2.

Q: An aluminum rod is 20.0 cm long at 20.0 °C and has a mass of 0.350 kg. If 10kJ of energy is added to…

A: Given, L=20cm mass m= 0.350 kg Q=10kJ

Q: Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are…

A: The expressions for the corrected radius of the fin,   Substitute,

Q: Steam at Ti = 380°C flows in a cast iron pipe (k = 75 W/m.°C) whose inner and outer diameters are Di…

A: Given that,   Stream temperature (Ti) = 380°C.   Thermal coefficient (k 1)= 75 W/m.°c.   Inner…

Q: A copper rod has a length of  1.5m1.5m and a cross-sectional area of 4.0×10−4m24.0×10−4m2. One end…

A:

Q: A cylindrical copper rod of length 1.2 m and cross-sectional area 4.8 cm2 is insulated along its…

A: The cross-section area of the copper rod,

Q: Heat is conducted through a slab composed of parallel layers of different conductivities, 0.0050 and…

A: The amount of conduction through a slab is  H = K A (T' - T)d where, K is the coefficient of thermal…

Q: For a temperature difference ΔT = 20C, one slab of material conducts 10W/m². What is the rate of…

A:

Q: The outer diameter of a glass jar and the inner diameter of its iron lid are both 760 mm at room…

A: Given value--- L = 760 mm. initial temperature = 20 degree C. final temperature = 57.5 degree C.…

Q: is 15°C. Determine the time [min] required to increase the water temperature to 50°C when it is…

A: Diameter of cylinder (D)=108.02cm =1.0802m  radius (r)=0.5401m density of water =1000kg/m3…

Q: Carbon steel balls (r = 7833 kg/m3, k = 54 W/m·K, cp = 0.465 kJ/kg·°C, and a = 1.474 * 1026 m2/s) 8…

A: Calculate the characteristic length of the balls.

Q: Water with a mass of mW = 0.400 kg and temperature of TW = 18.5°C is poured into an insulated bucket…

A:

Q: The outer diameter of a glass jar and the inner diameter of its iron lid are both 760 mmmm at room…

A:

Q: An iron bar has original dimensions of 10 m× 2 cm × 2 cm. What is the amount of heat (Q) required to…

A:

Q: A window glass 0.50-cm thick has dimensions of 3.0 m by 1.5 m. If the outside temperature is -10°C…

A:

Q: compound bar 2.0 m long is constructed of a solid steel core 1.0 cm in diameter surrounded by a…

A: The total heat transfer per unit time  in the bar is 1.13cal/sec.

Q: The radius and the length of a cylindrical metal are 5.00 cm and 20.00 cm at 25C, respectively.…

A:

Q: Steel rods (r = 7832 kg/m3, cp = 434 J/kg·K, and k = 63.9 W/m·K) are heated in a furnace to 850°C…

A: It is given that,

Q: Consider a person standing in a room at 20°C with an exposed surface area of 1.7 m2. The deep body…

A: It is given that,

Q: A block of ice is kept pressed against one end of a circular copper bar of diameter 2 cm, length 20…

A:

Q: Consider an electrically heated brick house (k = 0.40 Btu/h·ft·°F) whose walls are 9 ft high and 1…

A: Determine the total heat transfer area,

Q: Metal plates (k = 180 W/m·K, r = 2800 kg/m3, and cp = 880 J/kg?K) with a thickness of 1 cm are being…

A: The Biot number for the plates,

Q: Consider a very long rectangular fin attached to a flat surface such that the temperature at the end…

A: The variation of temperature of a very long fin is defined as,

Q: The roof of a house consists of a 15-cm-thick concrete slab (k = 2 W/m·K) that is 15 m wide and 20 m…

A:

Q: In a manufacturing facility, 5-cm-diameter brass balls (r = 8522 kg/m3 and cp = 0.385 kJ/kg · °C)…

A:

Q: The enthalpy of evaporation of water is 40.67 kJ>mol. Sunlight striking Earth’s surface supplies…

A: The given values with suitable variables are listed below. Here, hv denotes the enthalpy of…

Q: An aluminum bar has a cross-section that is 5.1 cm by 6.93 cm and is 1.91 m long. Aluminum has a…

A:

Q: ugh a slab composed of parallel layers of different conductivities, 0.0050 and 0.0025…

A: Given:- conductivity of the two parallel layers are  K1 = 0.0050 cal/cm2-sec-°C/cm K2 =0.0025…

Q: The tube in a heat exchanger has a 2-in inner diameter and a 3-in outer diameter. The thermal…

A:

Q: An aluminum bar has a cross-section that is 5.07 cm by 6.38 cm and is 1.53 m long. Aluminum has a…

A: Given, crossection of the aluminium bar, 5.07 cm ×6.38 cmlength of the aluminium bar, L = 1.53…

Q: An aluminum bar has a cross-section that is 4.37 cm by 6.87 cm and is 2.3 m long. Aluminum has a…

A: Because of temperature drop across the aluminum bar, heat transfer shall occur through aluminum bar.…

Q: An aluminum pan whose thermal conductivity is 237 W/m·K has a flat bottom with diameter 15 cm and…

A: Given data   The thermal conductivity of the aluminium pan is k = 237 W/mK The diameter of the…

Q: Calculate the heat flow (H) into a refrigerator with a total outer surface area of 5.22m2, and given…

A: The rate of heat flow is given by  H = k A (T'- T)d where, k is the coefficient of thermal…

Q: A solid concrete wall has dimensions 4.0 m x 2.4 m and is 30 cm thick. The thermal conductivity of…

A:

Q: For heat transfer purposes, a standing man can be modeled as a 30-cmdiameter, 170-cm-long vertical…

A: Given  Diameter of cylinder D=30cm Length L=170cm Initial temperature TI=3400C Convective heat…

Q: A piece of unknown material has a mass of m, = 0.79 kg and an initial temperature of Ty = 76°C. The…

A: Mu= 0.79 kg , Tu= 76°C  Mw= 1.3kg, Tw = 18°C  Tf= 31°C  Cw= 4.18×103 J/kg°C  Cu= ?

Q: A thermal window, with an area of 6.0m ^ 2, is constructed of two layers of glass, each 4.0mm thick,…

A: Given, Area of window, A=6 m2 Th. conductivity of window glass & air, k1=0.8 W/m.C∘ &…

Q: A short brass cylinder (r = 8530 kg/m3, cp =0.389 kJ/kg·K, k = 110 W/m·K, and a 5 *.39 3 1025 m2/s)…

A: Given terms:

Q: The inner and outer surfaces of a 25-cm-thick wall in summer are at 27°C and 44°C, respectively. The…

A: The expression for the convection heat transfer is given as:q˙conv=h(T0-T2)               - 1And,…

Q: The conduction heat flux through a wall is known to be 2020 W/m² and the convection heat flux from…

A:

Q: A brass bar is joined at one end to a 70 cm copper bar and at the other end with boiling water at 1…

A: Data given ,  Length of the copper bar ( L2 ) = 70 cm = 0.7 m Cross sectional area ( A ) = 0.00500…