It is sometimes necessary to produce saturated steam from superheated steam. This change can be accomplished in a desuperheater, a device in which just the right amount of water is spayed into superheated steam to produce dry saturated steam. If superheated steam at 3 MPa and 500oC enters the desuperheater at a rate of 500 kg/hr, at what rate should liquid water at 2.5 MPa and 25oC be added to the desuperheater to produce saturated steam at 2.25 MPa?

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: The liquid food is flowed through an uninsulated pipe at 90 ° C. The product flow rate is 0.4 kg / s…

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Q: For transfusion of blood to a patient, it is decided to have a heat exchanger which heat the blood…

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Q: Calculate the heat transfer and exit temperature of both

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Q: 12. Water at a rate of 1 lbm/s flows in a vertical heated tube (d = 1.5 in). System pressure is 1250…

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Q: A. Identify the type of thermodynamic systems involved and the heat and work flows and their…

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Q: 3-45 Saturated steam at T=30°C condenses on the outer surface of a cooling tube at a rate of 45…

A: From  Steam table At  T sat = 30 oC hfg   = 2429.8 kj/kg m = 45 kg/h

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Q: To achieve cooling to a lower temperature on an industrial scale, a cascade refrigeration system…

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Q: the

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

Q: Oil at a rate of 1000 kg/min flows from an open reservoir placed at the top of a hill 400 m in…

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Q: 2-37 Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel.…

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Q: The liquid food is flowed through an uninsulated pipe at 90 ° C. The product flow rate is 0.3 kg / s…

A: Given DataMass flow rate of food  m=0.3 kg/sSpecific heat of food  Cp=4 KJ/kg.KThermal conductivity…

Q: Q.2/ In the college laboratory, there is a Camot cycle engine need 2000 J of heat from the source at…

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Q: 19. a 1.99 kg of gas (R= 428.6 J/kg=K) undergo a non-flow isometric process from 577.7 kPa and 57.15…

A: Given Mass of gas m=1.99kg R=428.6 J/kg-K P=577.7 kPa T=57.15 °C  P=1765.46 kPa Heat added=119 kJ/s…

Q: The liquid food is flowed through an uninsulated pipe at 90 ° C. The product flow rate is 0.3 kg / s…

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Q: a) the total heat, in Btu / lbm Answer b) the total work, in Btu / lb

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