EBK FUNDAMENTALS OF THERMAL-FLUID SCIEN
5th Edition
ISBN: 9781259151323
Author: CENGEL
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 16, Problem 24P
To determine
The temperature of the outer surface of the bottom of the pan.
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Chapter 16 Solutions
EBK FUNDAMENTALS OF THERMAL-FLUID SCIEN
Ch. 16 - Prob. 1PCh. 16 - Judging from its unit W/m·K, can we define thermal...Ch. 16 - Which is a better heat conductor, diamond or...Ch. 16 - How do the thermal conductivity of gases and...Ch. 16 - Why is the thermal conductivity of superinsulation...Ch. 16 - Why do we characterize the heat conduction ability...Ch. 16 - Consider an alloy of two metals whose thermal...Ch. 16 - What are the mechanisms of heat transfer? How are...Ch. 16 - Write down the expressions for the physical laws...Ch. 16 - How does heat conduction differ from convection?
Ch. 16 - Does any of the energy of the sun reach the earth...Ch. 16 - How does forced convection differ from natural...Ch. 16 - What is the physical mechanism of heat conduction...Ch. 16 - Consider heat transfer through a windowless wall...Ch. 16 - Consider heat loss through the two walls of a...Ch. 16 - Consider two houses that are identical, except...Ch. 16 - Consider two walls of a house that are identical...Ch. 16 - Define emissivity and absorptivity. What is...Ch. 16 - What is a blackbody? How do real bodies differ...Ch. 16 - A wood slab with a thickness of 0.05 m is...Ch. 16 - The inner and outer surfaces of a 4-m × 7-m brick...Ch. 16 - The inner and outer surfaces of a 0.5-cm thick 2-m...Ch. 16 - An aluminum pan whose thermal conductivity is 237...Ch. 16 - The north wall of an electrically heated home is...Ch. 16 - In a certain experiment, cylindrical samples of...Ch. 16 - One way of measuring the thermal conductivity of a...Ch. 16 - A concrete wall with a surface area of 20 m2 and a...Ch. 16 - A hollow spherical iron container with outer...Ch. 16 - The inner and outer glasses of a 4-ft × 4-ft...Ch. 16 - An engineer who is working on the heat transfer...Ch. 16 - Air at 20°C with a convection heat transfer...Ch. 16 - Four power transistors, each dissipating 12 W, are...Ch. 16 - In a power plant, pipes transporting superheated...Ch. 16 - An electric current of 5 A passing through a...Ch. 16 - Hot air at 80°C is blown over a 2-m × 4-m flat...Ch. 16 - A 5-cm-external-diameter, 10-m-long hot-water pipe...Ch. 16 - A transistor with a height of 0.4 cm and a...Ch. 16 - A 300-ft-long section of a steam pipe whose outer...Ch. 16 - The boiling temperature of nitrogen at atmospheric...Ch. 16 - Repeat Prob. 16–43 for liquid oxygen, which has a...Ch. 16 - A series of experiments were conducted by passing...Ch. 16 - A 2.1-m-long, 0.2-cm-diameter electrical wire...Ch. 16 - Using the conversion factors between W and Btu/h,...Ch. 16 - The outer surface of a spacecraft in space has an...Ch. 16 - Consider a person whose exposed surface area is...Ch. 16 - Consider a sealed 20-cm-high electronic box whose...Ch. 16 - Two surfaces, one highly polished and the other...Ch. 16 - A spherical interplanetary probe, with a diameter...Ch. 16 - An electronic package in the shape of a sphere...Ch. 16 - Can all three modes of heat transfer occur...Ch. 16 - Can a medium involve (a) conduction and...Ch. 16 - The deep human body temperature of a healthy...Ch. 16 - We often turn the fan on in summer to help us...Ch. 16 - Consider a 20 cm thick granite wall with a thermal...Ch. 16 - A solid plate, with a thickness of 15 cm and a...Ch. 16 - Air at 20°C with a convection heat transfer...Ch. 16 - An electronic package with a surface area of 1 m2...Ch. 16 - Consider steady heat transfer between two large...Ch. 16 - Consider a person standing in a room at 18°C....Ch. 16 - The inner and outer surfaces of a 25-cm-thick wall...Ch. 16 - A 2-in-diameter spherical ball whose surface is...Ch. 16 - An 800-W iron is left on the iron board with its...Ch. 16 - A 3-m-internal-diameter spherical tank made of...Ch. 16 - Solar radiation is incident on a 5 m2 solar...Ch. 16 - A flat-plate solar collector is used to heat water...Ch. 16 - The roof of a house consists of a 22-cm-thick...Ch. 16 - Consider a flat-plate solar collector placed...Ch. 16 - An AISI 304 stainless steel sheet is going through...Ch. 16 - Engine valves (cp = 440 J/kg·K and = 7840 kg/m3)...Ch. 16 - A cylindrical resistor element on a circuit board...Ch. 16 - The heat generated in the circuitry on the surface...Ch. 16 - A 0.3-cm-thick, 12-cm-high, and 18-cm-long circuit...Ch. 16 - A 40-cm-long, 800-W electric resistance heating...Ch. 16 - It is well known that wind makes the cold air feel...Ch. 16 - An engine block with a surface area measured to be...Ch. 16 - Consider an electrical wire submerged in liquid...Ch. 16 - A cylindrical fuel rod of 2 cm in diameter is...Ch. 16 - Consider a person standing in a room maintained at...Ch. 16 - Consider a 3-m × 3-m × 3-m cubical furnace whose...Ch. 16 - A soldering iron has a cylindrical tip of 2.5 mm...Ch. 16 - A thin metal plate is insulated on the back and...Ch. 16 - Consider a flat-plate solar collector placed on...Ch. 16 - An electric heater with the total surface area of...
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- An Inclining experiment done on a ship thats 6500 t, a mass of 30t was moved 6.0 m transvesly causing a 30 cm deflection in a 6m pendulum, calculate the transverse meta centre height.arrow_forwarda ship 150 m long and 20.5 m beam floats at a draught of8 m and displaces 19 500 tonne. The TPC is 26.5 and midshipsection area coefficient 0.94. Calculate the block, prismatic andwaterplane area coefficients.arrow_forwardA vessel loads 680 t fuel between forward and aft deep tanks. centre of gravity of forward tank is 24m forward of ships COG. centre to centre between tanks is 42 m. how much in each tank to keep trim the samearrow_forward
- Beam of a vessel is 11% its length. Cw =0.72. When floating in SW of relative denisity 1.03, TPC is 0.35t greater than in freshwater. Find the length of the shiparrow_forwardAn inclining experiment was carried out on a ship of 4000tonne displacement, when masses of 6 tonne were moved transverselythrough 13.5 m. The deflections of a 7.5 m pendulurnwere 81, 78, 85, 83, 79, 82, 84 and 80 mm respectively.Caiculate the metacentric height.arrow_forwardA ship of 10 000 tonne displacement has a waterplanearea of 1300 m2. The ship loads in water of 1.010 t/m3 andmoves into water of 1.026 t/m3. Find the change in meandraughtarrow_forward
- A ship of 7000 tonne displacement has a waterplane areaof 1500 m2. In passing from sea water into river water of1005 kg/m3 there is an increase in draught of 10 cm. Find the Idensity of the sea water.arrow_forwardA ship has 300 tonne of cargo in the hold, 24 m forward ofmidships. The displacement of the vessel is 6000 tonne and its centre of gravity is 1.2 m forward of midships.Find the new position of the centre of gravity if this cargo ismoved to an after hold, 40 m from midshipsarrow_forwardSketch and describe how ships are supported in dry dock. When and where does the greatest amount of stresses occur?arrow_forward
- Sketch and desribe a balanced rudder and how it is suspendedarrow_forwardA ship 140 m long and 18 m beam floats at a draught of9 m. The immersed cross-sectionai areas at equai intervais are 5,60, 116, 145, 152, 153, 153, 151, 142, 85 and 0 m2 respectively.Calculate:(a) displacement(b) block coefficient(c) midship section area coefficient(d) prismatic coefficient.arrow_forwardA steamer has waterplane area 1680m2 recorded in water with relative denisty 1.013. Displacement = 1200 t, calculate difference in draught in salwater reltive denisity 1.025.arrow_forward
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