EP - COOLING
11300-3

🖊 Primary nrg demand
(summer air conditioning)

Need (Cooling) =
ideal need + systems losses - recovered

Need (air handling) = f( mean hourly specific need )

🖊 Mean monthly performance coeff.=
Need (cooling + air handling) /
Primary nrg demand (summer air cond)

LOSSES

Emission: % of ideal need

Control: % of (ideal need + emiss losses)

Distribution:

  • air ducts = f( load factor, linear trasmittance )
  • in pipes = % ( nd + e,losses + c,losses )

Storage

Recovered = by recovery units + air conditioners

El demand
(Auxiliaries)

Emission =
%stop (nominal powerS * hours )

Distribution =
pumps + fans

Generation =
mean load factor * nominal powerS + hours

f()

Mean monthly load factor =
Need (C + V) / (h * Pot nominale)

Energy Efficiency Ratio =
f( mean monthly load factor )

η(1) = f(

  • type of chiller
  • load factor
  • hot fluid temp.
  • cold fluid temp.

Other η