LCA
RG66000986 – Rev.00
10
The compressors often work intermittently, since the chilling requirements of the user generally do not
coincide with the compressor output. In systems containing little water, where the thermal inertia of the
water itself is lower, it is a good idea to check that the water content in the section delivering to users
satisfies the condition below:
V
= water content in user section
[m3]
Sh
= specific heat of the fluid
[J/(kg/°C)]
ρ
=
fluid
density
[kg/m3]
D
τ
= minimum time lapse between 2 compressor restarts [s]
DT
= allowed water T differential
[°C]
Cc
=
Cooling
capacity
[W]
Ns
= N° of choking steps
Tank
Ts
Q; TW in
Q; TW out
