Steam at 320°C flows in a stainless steel pipe (k =15 W/m·K) whose inner and outer diameters are 5 cm and5.5 cm, respectively. The pipe is covered with 3-cm-thickglass wool insulation (k = 0.038 W/m·K). Heat is lost to thesurroundings at 5°C by natural convection and radiation, witha combined natural convection and radiation heat transfercoefficient of 15 W/m2·K. Taking the heat transfer coefficientinside the pipe to be 80 W/m2·K, determine the rate of heatloss from the steam per unit length of the pipe. Also determinethe temperature drops across the pipe shell and the insulation.

Q: Estimate the rate of heat transfer through the Styrofoam insulation in the walls of a kitchen…

A: Given the area of the wall A=4.0m2 inside temperature T1=4.0oC outside temperature T2=25.0oC…

Q: A steam pipe is covered with 1.25 cm thick insulating material of thermal conductivity 0.200 W / m.…

A: Given:- Length of material = 1.25 cm thick = 0.0125 m k= 0.200 W/m.oc = 0.200 * 100 * 4.186 = 83.7…

Q: Indigenous peoples sometimes cooked in watertight baskets by placing enough hot rocks into the water…

A:

Q: At 20.0°C, an aluminum ring has an inner diameter of 5.000 0 cm and a brass rod has a diameter of…

A: Initial temperature, Ti=20.0°CInitial diamater of Al, Di,Al=5.0000 cmInitial diamater of Br,…

Q: The thermal conductivities of human tissues vary greatly. Fat and skin have conductivities of about…

A:

Q: The “steam” above a freshly made cup of instant coffee is really water vapor droplets condensing…

A: The heat will be, Q=McΔT Also, Q=mLv Thus we have, ΔT=mLvMc

Q: The world's most active volcanoes, such as the Kilauea volcano in Hawaii, can disgorge about 5 ✕ 105…

A: Given: The volume of the lava is 5×105 m3. The initial temperature of the lava is 1025 °C. The final…

Q: Two moles of ideal helium gas are in a rubber balloon at 30 0 C. The balloon is fully expandable and…

A:

Q: An ice chest is constructed of Styrofoam (k = 0.033 W/moC) with inside dimensions of 25 by 40 by 100…

A:

Q: solar panels have an emissivity of e=0.465. When in direct sunlight they absorb energy at rate of…

A: Given The emissivity of the solar panel is e = 0.465. The rate of energy observation is Q/t = 857…

Q: Geothermal steam at 172°C condenses in the shell side of a heat exchanger over the tubes through…

A: Given,temperature of the steam, Ts = 172 °Cdiamete of the tube, d = 4 cmlength, L = 9.5 mtemperature…

Q: 97. As we drill down into the rocks of Earth's crust, the temperature typically increases by 3.0°C…

A:

Q: What is the final temperature of 269 g of hot coffee initially at 89.0°C if 1.70 g evaporates from…

A: Heat lost by the coffee is equal to the heat gained by the steam. Thus, Here, mC, c, T, ms, and L…

Q: The heat capacity of air at room temperature and pressure is approximately 21 J×mol-1×K-1. a) How…

A:

Q: copper calorimeter can with mass 0.100 kg contains 0.160 kg of water and 0.0180 kg of ice in thermal…

A: Mass of calorimeter , water and ice is given. Lead is added into calorimeter.

Q: A 3.50-g copper coin at 17.5°C drops 40.0 m to the ground. (a) Assuming 55.0% of the change in…

A: a) The expression to determine the energy required to raise the temperature of the coin is,…

Q: The "steam" above a freshly made cup of instant coffee is really water vapor droplets condensing…

A: The mass of the coffee is m=185 g×1 kg1000 g=0.185 kg The evaporated mass is me=3.93 g×1 kg1000…

Q: During an intense 30-minute fat-burning workout class, the instructor maintains an average power…

A:

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: The "steam" above a freshly made cup of instant coffee is really water vapor droplets condensing…

A: Given problem is based on the concept of heat transfer. There are three ways through which heat…

Q: A 10-in nominal pipe (outside diameter = 10.75in) is covered with a composite pipe insulation…

A: Given outside diameter R1 =10.75inch and insulation consisting of 2.0 inthermal conductivity of…

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: Most automobiles have a coolant reservoir to catch radiator fluid that may overflow when the engine…

A: Given:- A radiator is made of copper and is filled to its 15.8 L capacity when at 16.5oC  The fuild…

Q: A ‘thermacole’ icebox is a cheap and an efficient method for storing small quantities of cooked food…

A:

Q: A metal plate 4.00 mm thick has a temperature difference of 32.0°C between 6. A metal plate 4.00 mm…

A: Ans:- Image-1

Q: A 32 cm x 20 cm stained glass window is 16.0 mm thick and made of a glass with thermal conductivity…

A:

Q: A 1.50-kg iron horseshoe initially at 590°C is dropped into bucket containing 23.0 kg of water at…

A: Given value--- mass of iron horseshoe = 1.5 kg. temperature of iron horseshoe = 590 degree C. mass…

Q: brass rod has a diameter of 6.090cm. Keeping the brass rod at 19.0°C,to wha

A:

Q: Air (p = 1 bar) flows in a pipe with a diameter of 25 cm (length 12 m) with an average flow speed of…

A: Introduction: Heat transfer is the process of transferring of heat from higher temperature system…

Q: much heat transfer (in kcal) is required to raise the temperature of a 0.600 kg aluminum pot…

A: Given mass of aluminium = 0.6 kg  Mass of water = 3 kg  Initial temperature = 10 0 C  Final…

Q: The world's most active volcanoes, such as the Kilauea volcano in Hawaii, can disgorge about 5.00 X…

A: The volume of the lava, V is 5×105 m3.  The change in the temperature, ∆T is (1100°C−25°C)=1075°C.…

Q: · A 3.2 m length of copper pipe extends directly from a hot-water heater in a basement to a faucet…

A: Given data: Original Length (L0) = 3.2 m Initial temperature (Ti) = 20.0°C Final temperature (Tf) =…

Q: Double pane windows are two panes of glass separated by a 3 mm wide gap filled with dray air. The…

A:

Q: Radiant heat makes it impossible to stand close to a hot lava flow. Calculate the rate of heat loss…

A:

Q: 1. A cylindrical aluminum rod is positioned between two enclosed volumes, each con- taining x moles…

A: Given that: Length of the rod, L=24.0 cm=0.24 mArea of cross section, A=14.0 cm2=14.0×10-4…

Q: a) You have a styrofoam container with 815 g of a soft drink (specific heat of 4,100 J/(kg °C)) at…

A:

Q: An electric stove burner has surface area 325 cm² and emissivity e = 1. The burner consumes 1500 W…

A: We are aware that an electric stove burner has a surface area of 325 cm2, an emissivity of 1,…

Q: A 6.25 kg block ice at 0 degrees Celsius is being warmed on a glass stove top. The thermal…

A: The quantity of heat passing in time t is

Q: Following vigorous exercise, the internal body temperature of a 69.5-kg person is 40.0°C.  At what…

A:

Q: 53. At the start of a trip, a driver adjusts the absolute pressure in her tires tobe 2.81 3 105 Pa…

A: Given Data: The initial pressure is, Pi = 2.81 x 105 Pa. The final pressure is, Pf = 3.01 x 105 Pa.…

Q: The world's deepest gold mine, which is located in South Africa, is over 5.1 km deep. Every day, the…

A: There is m=348114 kg of ice at 0°C. The latent heat of fusion of ice is Lf=3.33×105 J/kg.

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.