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The energy loss in flow through ven-turimeter is less than that through flow nozzle, because in case of a flow nozzle, the
When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be
An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii)
The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is
The ratio of exit pressure to inlet pressure for maximum mass flow rate per unit area of steam through a nozzle when steam is initially dry saturated is
The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
The friction present between the steam and the nozzle surfaces reduces the heat drop by
Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is
The density of supersaturated steam is about __________ that of the ordinary saturated vapor at the corresponding pressure.
The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)