Sleäm at a pressure of Ра and lemperaure Is passed al a constant rate into a desuperheater unit. The desuperheater is accomplished by continuously spraying water at 95 °C onto incoming superheated steam. The amount of water injected is so regulated that both the water and superheated steam finally change into dry steam at 2 MPa. If the resulting mixture of dry saturated steam leaves the desuperheater at 2MPA and the rate of 1 kg/s, find the mass of superheated steam used per hour and the mass of water to be injected per hour. Fond also the diameter of the pipe through which the superheated steam flows to the superheater if the speed of the steam through the pipe is not to exceed 25m/s.. 309.6kg/h; 76.5mm) (steam 3290.4kg/h; water

Sleäm at a pressure of Ра and lemperaure Is passed al a constant rate into a desuperheater unit. The desuperheater is accomplished by continuously spraying water at 95 °C onto incoming superheated steam. The amount of water injected is so regulated that both the water and superheated steam finally change into dry steam at 2 MPa. If the resulting mixture of dry saturated steam leaves the desuperheater at 2MPA and the rate of 1 kg/s, find the mass of superheated steam used per hour and the mass of water to be injected per hour. Fond also the diameter of the pipe through which the superheated steam flows to the superheater if the speed of the steam through the pipe is not to exceed 25m/s.. 309.6kg/h; 76.5mm) (steam 3290.4kg/h; water

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

Steam at a pressure of 2MPA and temperature 300°C is passed at a
constant rate into a desuperheater unit. The desuperheater is accomplished by
continuously spraying water at 95 °C onto incoming superheated steam. The
amount of water injected is so regulated that both the water and superheated
steam finally change into dry steam at 2 MPa. If the resulting mixture of dry
saturated steam leaves the desuperheater at 2MPA and the rate of 1 kg/s, find the
mass of superheated steam used per hour and the mass of water to be injected per
hour. Fond also the diameter of the pipe through which the superheated steam
flows to the superheater if the speed of the steam through the pipe is not to exceed
(steam 3290.4kg/h; water
1.
25m/s. .
309.6kg/h; 76.5mm)

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