Dear all, I am in rainy dark-searching energy saving option-for the existing system.

"aircooled condensers are used in this existing system."

We have total of 14 compressors in our 1st phase of the project.Two same kind of room are
cooling using these compressors.So one Room using 7 compressors.Out of 7, two are Danfoss
MT320-Hw4, 3 are MT160 and Another two are of MT 160-4VM type.Room size is 21Mx14M and
height 3M.The Lequid product is cooled down from 45 deg C to 10 Deg C.Every 24 hours 150 Ton
of this Lequid(Palm Oil Kernel) produce( means hot Product into the room and cold Out from
the room).But Present compressors are running by adjustable timers.Our concern is: How we
can save energy in this application?
adding few information.
1.Ambient Temperature Min 28-Max 34 deg C, Average 31 deg C.(Country-Malaysia).
2.Timer settings:40 minutes OFF and then 4 hours ON,approx. 20 Hours ON and 4 Hours OFF in
24 hours(a day) for all the compressors.But not all are starting /stopping at the same
time.There is a secuence.
3.I have measured Power the each compressorS taking are follwing:
compressor 1=21kw/440VAC/34A/50Hz
compressor 2=21kw/440VAC/34A/50Hz
compressor 3=27.6kw/440VAC/37A/50Hz
compressor 4=23.4kw/440VAC/23.4A/50Hz
compressor 5=37.7kw/440VAC/37A/50Hz
ABOVE EACH ONE(1-4) ARE USING 4 SAME SIZED(120W APROX)-CONDENSING FAN FOR CONDENSER.
compressor 6=18.5kw/440VAC/21A/50Hz
compressor 7=18.5kw/440VAC/21A/50Hz
ABOVE EACH ONE(6&7) ARE USING 3 SAME SIZED(120W APROX)-CONDENSING FAN FOR CONDENSER.ALL
CONDENSERS ARE OUTSIDE THE BUILDING.
fOR STARTING THESE ABOVE ALL compressorS AUTO-TRANSFORMERS ARE USED.
BLOWER-1(EVAPORATION) FOR compressor-1,2&3 FOR LINE-1 FOR THE SAME
ROOM=18.5kw/440VAC/21A/50Hz
BLOWER-2(EVAPORATION) FOR compressor-4&5 FOR LINE-2 FOR THE SAME ROOM=18.5kw/440VAC/21A/50Hz
and(440VAC 3 phase giving)V12=438VAc,V23=435,V31=432 aprox for all.
4.The room is well insulated but there is some workers(average 4 person always) working for
taking out the cold-freezed/solidified (oil became solid after cooling) from the room
through the gate.When they enter/exit the room some outside air obviouly enter the room.
5.PRESENT SYSTEM AIR-COOLED CONDENSER.SO I THINK IF WE CHANGE ALL THESE AIR COOLED SYSTEM TO
WATER COOLED CONDENSING SYSTEM THE COST WILL BE VERY HIGH.