big TD chiller issue etc

[Lc_shi]

HI sirs
For saving energy,big TD chiller/AHU/Air supplier system is coming up.
# Big TD AHU is said to save pump power for water flow reduction but need bigger air cooling coil;
#Big TD air supplier can save fan power same as above;
#Big TD chiller,i can't see its advantage but i've heard some one researched it.

What do you think about it?

regards
LC

[US Iceman]

Hi LC,

# Big TD AHU is said to save pump power for water flow reduction but need bigger air cooling coil;
#Big TD air supplier can save fan power same as above;

This is the basic reason for using ice in thermal storage for HVAC. You can use smaller duct work and chilled water piping and pumps and fans.

Can you suggest what a high TD might be for a chiller?

[Lc_shi]

Can you suggest what a high TD might be for a chiller?

Usual TD is 5K in chiller, I'm not sure if there's higher TD design. May be it should called variable primary flow chiller which can adjust TD for capacity control. High TD chiller is wrongly created by me

regards
LC

[NoNickName]

Oh, high delta T. I see.
Well been there, done that.
Tha main reason for that is to save money on the pump, but that's an installer or consultant problem. Anything else remains the same.
In order to save money on the coils, a lower delta T, not higher, must be used.