Description and Specification for Lab Tenders
Separating & Throttling Calorimeter With Boiler.
PRODUCT DETAILS
The steam passing out from separating calorimeter may still contain some
water vapour , in it . in other words it may not be absolutely dry .
again , in a throttling calorimeter steam after passing through the
throttle valve must be superheated or at least dry saturated . this
limits the extent of dryness fraction that can be reliably measured ,
depend up on the pressure of steam in the main steam pipe . if a sample
of steam, which may be still wet after passing through the throttle
valve i.e it will not be superheated . thus under this condition the
throttling calorimeter fails to enable us in determining the value of
dryness fraction of steam . to overcome this difficulties we make use of
separating and throttling calorimeter . first the steam is passed
through separating calorimeter where itlosses most of it’s moisture and
becomes comparatively drier, it is than passed through the throttling
calorimeter where super heating takes place with out changr of total
heat . the temperature and pressure of steam after throttling are
measured by using a thermometer and manometer respectively.
DESCRIPTION
The set up consist of a separating and throttling calorimeter . a steam
generator is provided at the base of the apparatus . a thermostat knob
is provided at the front of apparatus to control the temperature inside
the steam generator . steam from steam generator is passed from
separating calorimeter where most of the water partical get separated
from steam and then passed to throttling calorimeter where steam get
superheated . after that superheated steam passed through heat exchanger
to condense the steam.
SAPARATING CALORIMETER
It consist of two concentric chamber , the inner chamber ,and the outer
chamber . which communicates with each other through an opening at the
top. As the steam discharge through the metal baskets ,which has a large
number of holes , the water partical due to there heavier momentum get
separated from the steam and collected in the chamber. The comparatively
dry steam in the inner chamber moves up and than down aging through the
annular space between the two chambers and enters the throttling
calorimeter .
THROTTLING CALORIMETER
It consist a narrow throat . pressure and temperature are measured by
manometer and thermometer . the steam after throttling process passed
through the heat exchanger and condensate is collected .
UTILITIES REQURIED
1.WATER SUPPLY 3 lit/min (approx)
2.Drain
3.Electric supply : 1phase , 220 V A.C , 2Amp.
4.Steam table for calculation
5.Space required : 1.0 m X 1.0 m