5000 kg of dry air per hour is cooled from 60 oC to 34 oC in a countercurrent heat exchanger. In the cooling process, the cold air supplied to the heat exchanger is used at a speed of 6200 kg/h and at 20 oC. If the same amount of hot air was cooled from 60 oC to 24 oC in a longer heat exchanger with the help of cold air under the same conditions, determine what the ratio of the new heat exchanger length to the original heat exchanger length would be (assume the specific heat of the air is constant).

Q: Sáturated liquid water is heated in a heat exchanger until it exits as a saturated liquid vapor…

A:

Q: A well-insulated shell-and-tube heat exchanger is used to heat water (cp = 4.18 kJ/kg·°C) in the…

A: Write the given information.

Q: Saturated liquid water is heated in a heat exchanger until it exits as a saturated liquid vapor…

A: To obtain the quality of the saturated liquid vapor mixture, we must use the law of the conservation…

Q: FAUIO HEATER MEATS 2 S0 kg PER SECEND OF ELUID PRoM 35°C 100't IN A PARALLEL PLow HEAT EXCHANGERHE…

A: As given that For fluid heater :- mass of fluid (mf)= 250 Kg/s , Tc1=35°C=308 K ,Tc2=100°C=373 K,…

Q: nger have an internal diameter of 2 cm, and the overall mine the total length of the tubes required…

A: Detailed answer shown below.

Q: A heat exchanger is to heat water (cp = 4.18 kJ/kgoC) from 25 to 60oC at a rate of 0.2 kg/s. The…

A:

Q: Sâturated liquid water is heated in a heat exchanger until it exits as a saturated liquid vapor…

A: Option d is correct.

Q: A steady-flow thermodynamic system receives 100 lbm/min of fluid at 30 psia and 2 ft^3/lbm and…

A: The steady flow energy equation can be used to evaluating the power generated during the flow.

Q: Saturated liquid water is heated in a heat exchanger until it exits as a saturated liquid vapor…

A: Given:-For oil,Tho=150°CTco=40°Cmo=5 kg/sCo=2.2 kJ/kg-cFor water,Tcw=25°Cmw=1.5…

Q: In the first case, two pipes are connected to a tank containing liquid water at 45kg and 45℃. Liquid…

A:

Q: An industrial adiabatic heat exchanger utilizes cold-water stream to cool down the waste-hot air…

A:

Q: A cold liquid enters a counter flow heat exchanger at 15 deg at a rate of 8 kg/s. A hot stream of…

A: Given, Inlet temperature of cold fluid = Tc1 = 15 oC Mass flow rate of cold fluid = mc = 8 kg/s…

Q: Steam at 200 kPa and 150°C is used to prepare hot water in a flow system. The steam cools and…

A: Steam at entry point,Saturated liquid condensate at exit,Water at entry,Water at exit,

Q: Cold water enters a counter-flow heat exchanger at 35°C at a rate of 0.0233 kg/s, where it is heated…

A:

Q: In a gas turbine unit, the gases flow through the turbine at 13 kg/s and the power developed by the…

A: Given data: Mass flow rate of gas (m.)=13 kg/s The power developed by the turbine (P)=14000 kW The…

Q: A well-insulated heat exchanger is to heat water (cp = 4.18 kJ/kg·°C) from 25°C to 60°C at a rate of…

A: The data given is,  Specific heat of the water, Cp = 4.18 kJ/kg·°C Initial temperature, Ti = 25°C…

Q: The suction fan of a building heating system draws ambient air at 100 kPa and 30 °C into a duct of…

A: Given Data:-

Q: As shown in the figure, a Carnot heat engine generates 1.65 MW of net power by taking heat from a…

A: Write the given data with suitable variables. Wcycle=1.65 MW=1.65×106 WTC=17 °CPH=100 kPa

Q: Steam enters 0.90 MW turbine at 400 °C and 3000 kPa with a velocity of 280 m/s and leaves at 200 °C…

A: This problem is related to fluid mechanics. Fluid mechanics is the subject of mechanical engineering…

Q: Water vapor at 20000 kg / hour flow enters a steam boiler with a specific volume of 225 kPa 0.7565…

A: Write the given information. Write the properties of eater at 223 kPa. The enthalpy of the steam…

Q: Hot air at 400°C and 150 kPa is to be used to produce saturated steam at 200°C in an insulated,…

A: The mass flow rate of air is The inlet temperature of air is The exit temperature of air is .The…

Q: Water flows through a shower head steadily at the rate of 8 kg/min. The water is heated in an…

A: Given:  mass flow rate of water = 8 kg/min = (8/60) kg/s = 0.133 kg/s initial cold water inlet, Tc1…

Q: A Liquid-to-Liquid counter flow heat exchanger is used as part of an auxiliary system at the…

A: GIVEN DATA - INLET TEMPRATURE OF HOT FLUID Th1=260'C EXIT TEMPRATURE OF HOT FLUID Th2=204.44'C INLET…

Q: For the production of high-speed trains at the SIEMENS company in Krefeld, considerable amounts of…

A:

Q: A well-insulated, thin-walled, counterflow heat exchanger is to be used to cool oil (cp = 2.20…

A: The data give is, The initial temperature of oil, T1 = 150°C The final temperature of oil, T2 =…

Q: In large steam power plants, the feedwater is often heated in closed feedwater heaters, which are…

A: Given, P1 = 1.6 MPa T1 = 250°C P2 =P1 = 1.6 MPa T3 = 30°C P3 = 4 MPa P4 = P3 = 4 MPa T4 = T2- 10°C…

Q: Steam at 1.4 MPa and 300°C enters the shell side of a shell and tube heat exchanger. It leaves as…

A:

Q: Steam with quality 0.85 enters the condenser of a power plant at 20 kPa with a mass flow rate 10…

A: Given data:

Q: A Thomas flowmeter is a device in which heat is transferred at a measured rate from an electric coil…

A:

Q: In large steam power plants, the feedwater is often heated in closed feedwater heaters, which are…

A: The initial enthalpy and entropy of the steam  obtained from the steam table at given pressure and…

Q: Water at 366.65K is pumped from a storage tank at the rate of 3.15*10-3m3s-1. The motor for the pump…

A:

Q: The exhaust gas leaving an oil engine is passed through a heat exchanger which consist of tubes…

A:

Q: A well-insulated heat exchanger is to heat water (cp = 4.18 kJ/kg·°C) from 25°C to 60°C at a rate of…

A: Write the energy balance equation for the steady-flow system. Since the system is stationary and…

Q: Outdoor air (cp = 1.005 kJ/kg·°C) is to be preheated by hot exhaust gases in a crossflow heat…

A: Given Data Inlet pressure of air, P1=101Kpa The inlet temperature of the air, T1=30°C The volume…

Q: A well-insulated shell-and-tube heat exchanger is used to heat water (cp = 4.18 kJ/kg·°C) in the…

A: Rate of heat transfer is given asQ˙=mh˙cpT1-T2Q˙=4.5×4.18Tout-TinQ˙=4.5×4.1870-20Q˙=940.5 kW

Heat Exchangers

Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.

Heat Exchanger

The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.