An egg with mean diameter of 40 mm and initially at 20 °C is placed in a boiling water for (4min) and found to be boiled to consumers taste. For how long should a similar egg for same consumer be boiled when taken from a refrigerator at 5 °C. Take the following properties for egg: k = 10 W/m. °C , p= 1200 kJ / kg. °C C = 2 kJ / kg. °c, and the heat transfer coefficient (h = 100 W/m2. °C)

Q: n iron ball (p 7833 ,k = 54. °C , Cp = 0,465.°C) has a diameter of 8 m3 kg m he ball initially has a…

A:

Q: Saturated steam at 3 atm will flow through a 3 in. Schedule 80 steel pipe. In order to decrease the…

A: The outer surrounding temperature is To=20°C The radius of the pipe is r1=32 in=3.81 cm. The thermal…

Q: Heat Transfer Develop the heat diffusion equation for a cylinder starting from the energy…

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Q: There are many correlations for predicting boiling heat transfer coefficient. The correlation given…

A: Solution: Given Data: Pw=1.98 barTw=125oC

Q: A piston-cylinder device contains (0.85 kg) of refrigerant (134a) at (-10°C). The piston that is…

A: solution: mp = 12 kg mr = 0.85 kg P= 88 kPa T1= -10 C  T2 = 15 C

Q: Consider you have four long, 2 cm diameter rods, one each made of copper, steel, wood, and glass.…

A: There are four rods of different material but having same dimensions as length 2 Cm each.All the…

Q: The inner and outer surfaces of a 0.5-cm-thick 2-m x 2-m window glass in winter are 10°C and 3°C,…

A: Given data: t=5 cmA=2×2 m2Ti=10°CTo=3°Ck=0.78 W/m°Ctime=5 hours=18000 sec Need to determine the…

Q: For the following problems for heat conduction in solids, state the: (i) differential equation, (ii)…

A: Given:To find:

Q: Soaked sawdust will be dried using air on a circular tray with a diameter of 10 cm, and the change…

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Strengthening of Alloys

Strengthening of the alloys is required as metals become weak due to various lattice defects, metal bonding phenomena. The strength of the metals is not enough for any mechanical work. The internal dislocations of any metals arise due to forming processes. Due to the movement of these dislocations, the metals are plastically deformed.