Chilled water leakage and make up cost for water

[pootong]

Dear All
We are planing for sell chilled water to our customer in the concession area. I wonder if we lost chilled water in custumer system, how can we charge them in terms of water and energy loss.
Regards
Pootong

 

[quark]

For water it is water cost + cost of chemicals (if you add any) reduced to the quantity of water lost.

For energy cost calculate energy loss by m x C_p(t1-t2) where m = mass of chilled water lost in kgs
C_p = specific heat of water (1 kCal/Kg ⁰C)
t1 = return water temperatre in ⁰C(in your case there won't be any return still consider temperature of water at the inlet of the chiller)
t2 = chilled water temperature in ⁰C.

Once you get the value you can get the energy cost by specific consumption of chiller. Convert it to suitable monetary terms.