waste heat utilisation – var system
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8/16/2019 Waste Heat Utilisation – VAR System
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Waste Heat Utilisation –
VAR system
KTC
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Waste Heat available
–Blow down@ 10 T/day/Unit
– Temp !0 "e# C
– $%ess 1&0 K#/C'!
– Total waste Heat ( 0 K)al/K# * 10000 K# * + ,nits at K$K"
– ( 1-!-00-000 K)al/"ay
– Heat %e.,i%ed pe% day o% ea) ,nit o% VAR systems
– 2+ TR * !+ H%/day * 0!+ 3Cal/%/TR ( 41-00-000 3Cal/day/,nit
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Vapo,% Comp%ession type
%e%i#e%ation system
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Vapo,% Abso%ption type %e%i#e%ation
system
Va),,m5&+
mmH#
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Comparison of Refrigeration Plants
Parameters
Vapour Compression ChillersVapour Absorption Chiller
LiBr Ammonia
Reciprocating
Centrifugal Screw Single Effect DoubleEffect
Half Effect Triple Effect Single Stage
Refrigeration Temp. Range(Brine / Water
!" to #$%oC !" to #%oC !" to #&'oC Aboe )%C *pto +$$%C
Heat ,nput Temp. Range#-aimum #-inimum
# # #-inimum'oC
-inimum0$%oC
-inimum''oC
-inimum01%oC
-inimum 'oC
T2pical Energ2 to TR Ratio %."#%.13W/TR
%.)$3W/TR %.)' 3W/TR '%%% 3cal/TR
&'"'3cal/TR
"'%% 3cal/TR&%%% 3cal/TR4)0' 3cal/TR
RefrigerantR005R0&$5R0$4aAmmonia
R&&5 R0&R&&5 R0$4aAmmonia
6ure Water 6ure Water 6ure Water 6ure Water 6ure Ammonia
Ab7orbent ###### ###### ######Water#LiBr7olution
Water#LiBr7olution
Water#LiBr7olution
Water#LiBr7olution
Ammonia#LiBr7olution
T2pical 7ingle unit capacit2range
0#0'% TR $%% TR 8aboe
'%#&%% TR $% TR 8aboe
$% TR 8aboe
$% TR 8aboe
'% TR 8aboe
$% TR 8 aboe
T2pical C96 at 6art Loa: upto
'%;
Re:uce7 at
part loa:
Re:uce7 at
part loa:
,mproe7 b2
0'#&%;
-arginal ,mproement at 6art Loa: <o ariation
T2pical Cooling tower capacit2range per 0%% TR of c=iller7
0$% 0&% 0&% &)% &%% $"% 0"% &1%
T2pical -a3e#up water >uantit2range in Ltr7/Hr.
)"& )&% )&% 0$4' 0%$' 0104 % 0'%%
Epecte: Life &'#$% 2ear7 0'#&% 2ear7 '% 2ear7
<ormall2 Epecte: Repair7 /-aintenance
6erio:ic Compre77or 9er=aulTube Replacement after 0#0& 2ear7
Tube Replacement:ue to Corro7ion
6racticall2 norepair7
?actor2 A77emble: pac3age: 9r
Site A77emble: ?actor2 A77emble:
?actor2
A77emble: upto&$% TR