In a particular scenario, a 250 ft/s of air at 50°Cand at 1 atm is preheated for a combustion process to 932 °F, how much is the cost of heat transfer for one month (30 days) if the energy cost is P5/Joule-day.

Q: Q6. A shell-and-tube heat exchanger having one shell pass and four tube passes is used to heat 10…

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Q: A 'long' steel shaft of 10 cm diameter is austenised at 870°C and then quenched in a liquid at 30°C.…

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Q: Heat in the amount of 100 kJ is transferred to 0.4 kmol of a gas in constant volume cylinder with…

A: Moles of gas, n = 0.4 Kmol Heat transfer, Q = 100 KJ Initial temperature, T1 = 200 K Specific heat…

Q: Crude oil, Cp = 1.92 kJ/(kg.K), flows at a rate of 0.33 kg/s through the inner pipe of a…

A: To solve the given problem, we'll use the Logarithmic Mean Temperature Difference (LMTD) method for…

Q: Hot fluid at enters the tube side of a counter current shell and tube heat exchanger at 93°C and…

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Q: 0.3 kg of gas is cooled from 1200C to 50°C at constant volume in a closed system. Calculate the heat…

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Q: Estimate the heat exchanger area needed to cool 55,000 lb/hr of a light oil (specific heat = 0.74…

A: Flow rate of light oil = 55000 lb/hr Specific heat of oil = 0.74 Btu/lb°F Initial temperature of oil…

Q: Given that the final tempurature is 845.5K and the work done if the gas is -5947J, what is the heat…

A: Given, Mass of nitrogen, m = 20 g The molar mass of nitrogen, M = 28 g/mol Initial conditions are at…

Q: A single effect evaporator is concentrating a feed of 9072 kg/h of a 10% wt. solution of NaOH in…

A: Feed rate = 9072 Kg/h Initial fraction of NaOH = 0.1 Final fraction of NaOH = 0.5 Pressure of…

Q: It is desired to cool an organic liquid from 65oC to 40oC using water as cooling medium. The organic…

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Q: A 20-cm diameter cylindrical enclosed pan is placed on top of a heating unit for vaporizing propane…

A: Given : The diameter of the cylinder, The vapor pressure of propane  The heat flux, The bottom pan…

Q: A flow of 0.35 kg/s of a solid is to be dried from 15 per cent to 0.5 per cent moisture on a dry…

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Q: 14 kg /s of liquor at 335 K of specific heat 4.18 Kj/kg K, and with no boiling point rise, so that…

A: Evaporators are used in the industries for the solution to heat them using steam. A solution is feed…

Q: A stream of ammonia is cooled from 100oC to 20oC at a rate of 180 kg/hr in the tube side of a…

A: Given,

Q: 1. A heat engine with a thermal efficiency of 45 percent rejects 500 kJ/kg of heat. How much heat…

A: Given: The thermal efficiency of a heat engine is η = 0.45 and it rejects heat of Qr = 500 kJ/kg The…

Q: ou oversee cooking a 30-lb turkey that is initially at 20 ̊C by exposing it to the 200 ̊C…

A: Step 1:Step 2:Step 3:Step 4:

Q: Find the amount of steam at 212 deg C which must be blowb into 400 lb of water originally at 70 deg…

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Q: Steady flow of 10kg and temperature of 200°C. If the heat dissipation from the alloy is 715.5kJ.…

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Q: 20,000 lb/hr of air is to be cooled from 150°F to 100°F by water flowing in a shell- and-tube heat…

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Q: 98 mol/h of methanol enters a heat exchanger where 0.20 kW of heat is added. Determine the…

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Q: a. Determine the log mean temperature difference (°C) if the brine outlet temperature is -10°C (i).…

A: Given: Capacity of heat exchanger Q = 100 kW Inlet temperature of water Thi = 15 oC Outlet…

Q: It is required to freeze 1 kg of water at 273 K by means of a refrigeration machine which operates…

A: In case of ideal Carnot machine which acts as a refrigerator, the work required will be the minimum…

Q: In a chemical plant for air purification, air at 20 °C and 1 bar enters a compressor slowly, it…

A: Compression is process where gas is compressed from initial low pressure to final high…

Q: 04: he room design conditions are 25 °C DBT and 50% RH, when outside design conditions re 43 °C DBT…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: A thick wall made of refractory bricks (k = 1.0 W/m·K and α = 5.08 × 10-7 m2 /s) has a uniform…

A: Thermal conductivity of brick = 1 W/m.K Thermal diffusivity, α = 5.08*10–7 m2/s Initial temperature…

Q: The starting temperature is equal to the room condition. A living organism with a volume of 22.4 L…

A: Given, Volume of living organism is 22.4 L. Number of organisms is 100.   Calculate the total volume…

Q: The temperature variation of molar heat capacities, Cpm / (J K' mol') for carbon dioxide gas are a =…

A: Whenever we need to rise the temperature of a substance, we have to supply heat. The amount of heat…

Q: Problem 2 A building requires 5 x 105 BTU per day to maintain its temperature at 70°F when the…

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Q: Uniform Chemical Heat Generation. Heat is being generated uniformly by a chemical reaction in a long…

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Q: After transfer of 1.40 kJ of thermal energy to a 0.546-kg block of copper the temperature is 45.2…

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A: For calculating the area we need heat duty.Heat duty is calculated from mass flow rate * heat of…

Q: We wish to calculate the internal heat transfer coefficient for water flowing at 0.00958 m/s through…

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Q: (For numbers 4 to 10) A double-pipe heat exchanger (counterflow operation) having an area of 100 m²…

A: Given that, Area A = 100 m2 The mass flow rate of water mc = 5 kg/s The inlet temperature of water…

Q: A shell and tube steam condenser is to be constructed of 2.5 cm O.D., 2.2 cm I.D., single pass…

A: The shell and tube heat exchanger is used to heat the cooling water by condensing steam . Outside…

Q: A sealed constant-volume container has 0.8 kg of liquid water and 0.2 kg of water vapor at 0.10 MPa…

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Q: A shell-and-tube heat exchanger is to heat an acidic liquid that flows in unfinned tubes of inside…

A: Given data: Inner diameter of tube = 10 mm Outer diameter of tube = 11 mm Density of metal alloy =…

Distillation

Distillation is a process/technique to separate more volatile components from less volatile components using the principle of relative volatility. In chemical engineering, distillation is one of the most common and important topics that is involved in almost every industry and process.