Functional Design of the mCCHP-RES System - Design for Micro-Combined Cooling, Heating and Power Systems - page 260

Fig. 11 Cooling system [ 8 ] 1
Heat source, 2 storage tank, 3
pump system, 4 thermal
chiller, 5 heat rejection, and 6
cold distribution

Table 8 Technical
characteristics of a cooling
system (example)

Basic performances data Statistical evaluation

Cooling capacity. max 23 Kw

COP therm max

0.65

Cooling capacity nominal 15 kW

COP therm. nominal

0.6

Nominal working conditions Temperature in/out ( ° C)

Driving heat circuit 72/65

Heat rejection circuit 27/32

Chilled water circuit 18/15

6 - 20

Temperature range (out)

Q cooling can be calculated with the following

(c) The maximum cooling power

relation:

Q cooling : day
t oper

Q cooling ¼

ðÞ ð Þ

kW 28

where:
A TFA floor area of residence (m 2 ); total

q cooling : max value of speci c cooling in the month with the biggest load of the

chiller (kWh/m 2 );

N days number of days of the month;