A mixture containing 35 mole% n-butane and the balance isobutane at 10°C enters a heat exchanger at a rate of 24.5 kmol/h and at 1.96 bar pressure. The exchanger has been designed to heat and vaporize the liquid and heat the vapor mixture to 180°C. The heating fluid is a high molecular weight liquid with a constant heat capacity (Cp=2.62 kJ/kg C).It enters the exchanger at 215°C and flows countercurrently to the hydrocarbon mixture. According to the heat exchanger design calculations, the heating fluid exit temperature should be 45°C. What is the required mass flow rate of the heating fluid in (kg/h)? Hint: Assuming that the heat capacities and heats of vaporization of n-butane and isobutane are independent of pressure, the mixture vaporizes at 10°C (i.e. will not vaporize at respective boiling points as a pure component), and all the heat lost by the heating fluid is transferred to the hydrocarbon mixture
A mixture containing 35 mole% n-butane and the balance isobutane at 10°C enters a heat exchanger...
2) Hot air enters a heat exchanger at 350°C and exits at 153°C. The heat extracted is used to boil 0.277 kg/s of 100°C water (from saturated liquid to saturated steam). The heat exchanger is a single-shell shell-and-tube heat exchanger with two tube passes. The overall heat transfer coefficient for the hot side is 240 W/(m2). Assume a constant specific heat for air of cp = 1.005 kJ/(kg°C). The pressure of the hot air and the boiling water is P...
Hot air enters a heat exchanger at 350°C and exits at (149°C. The heat extracted is used to boil (0.263) kg/s of 100°C water (from saturated liquid to saturated steam). The heat exchanger is a single-shell shell-and-tube heat exchanger with two tube passes. The overall heat transfer coefficient for the hot side is 240 W/(m2°C). Assume a constant specific heat for air of Cp = 1.005 kJ/(kgC). The pressure of the hot air and the boiling water is P =...
2) Hot air enters a heat exchanger at 350°C and exits at 155°C. The heat extracted is used to boil 0.283 kg/s of 100°C water (from saturated liquid to saturated steam). The heat exchanger is a single-shell shell-and-tube heat exchanger with two tube passes. The overall heat transfer coefficient for the hot side is 240 W/(m²°C). Assume a constant specific heat for air of Cp = 1.005 kJ/(kg °C). The pressure of the hot air and the boiling water is...
Propane gas enters a continuous adiabatic heat exchanger 240°C. Superheated steam at 300 C and 5 bar enters the exchanger flowing countercurrently to the propane and exits as a saturated liquid at the same pressure at 40 C and 250 kPa and exits at Taking flow chart. Include both mass and volumes on your inlet and outlet streams. b. Calculate the specific enthalpy values for the inlet and outlet streams. c. Use an energy balance to calculate the required mass...
Q4/ Toluene gas (CH3) enters a continuous adiabatic heat exchanger at (35°C) and (300 KPa) and exits at (260°C). Superheated steam at (400°C) and (5 bar) enters to exchanger flowing counter currently to a Toluene and exits as a saturated liquid at the same pressure. 1- If (150 mol) of Toluene is fed, draw and label a process flow chart. 2- Calculate the values of inlet-outlet enthalpies. 3- Calculate the volumetric feed ratio of the two streams (m' steam fed/mºtoluene...
pls Q4/ Toluene gas (C,Hg) enters a continuous adiabatic heat exchanger at (35°C) and (300 KPa) and exits at (260°C). Superheated steam at (400°C) and (5 bar) enters to exchanger flowing counter currently to a Toluene and exits as a saturated liquid at the same pressure. 1- If (150 mol) of Toluene is fed, draw and label a process flow chart. 2- Calculate the values of inlet-outlet enthalpies. 3- Calculate the volumetric feed ratio of the two streams (m' steam...
please Q4/ Toluene gas (C,Hg) enters a continuous adiabatic heat exchanger at (35°C) and (300 KPa) and exits at (260°C). Superheated steam at (400°C) and (5 bar) enters to exchanger flowing counter currently to a Toluene and exits as a saturated liquid at the same pressure. 1- If (150 mol) of Toluene is fed, draw and label a process flow chart. 2- Calculate the values of inlet-outlet enthalpies. 3- Calculate the volumetric feed ratio of the two streams (m' steam...
A stream containing ethane gas (C2He) enters the inner pipe of a double-pipe heat exchanger at 40°C and 105 kPa and exits from the pipe at 240*C and the same pressure. Superheated steam at 315 C and 5.0 bars enters the outer (annular) pipe, flowing counter-currently to the ethane, and exits as a saturated vapor at the same pressure. Neglecting the heat losses from the heat exchanger to its surroundings. Draw a diagram of the process. (5) What are the...
Help me please A gas mixture consisting of count:70%H2,20%N2, and 10% O2, Calculate A)Heat capacity of the molecular mixture(Cpmix) B) Molecular weight of the gas mixture(BMmix) C)The rate of the heat(Kcal/hour)needed when 10kg/hour of gas mixture is heated to a temperature of 150°C to 200°C. If for the purpose of heating the amonian gas used saturated steam heating media(saturated steam) at a temperature of 220°C(Pressure=23.20Bar)with the latent heat value of evaporation 1856.2 Kj/kg, Calculate the steam demand in Kg/Hour Cp...
Fuel: 0.84C12H26+0.11C7H8+0.05C2H5OH Pressure ratio: rp = 16.7 Equivalence ratio: φ = 0.38 The fuel is a three-fuel blend of: Name Chemical Formula h¯◦f n-dodecane C12H26. −352,100 kJ/kmol toluene C7H8 12,178 kJ/kmol ethanol C2H5OH −277,507 kJ/kmol For the inlet air conditions, use a temperature of 280 K and a pressure of 100 kPa. a) Calculate the net engine power for an air mass flow rate of 50 kg/s. • Except during combustion, assume that the working fluid is air, but account...