Page 191 - Introduction to Marine Engineering
P. 191
Refrigeration, air conditioning and ventilation 177
1 Mixing box
2 Fan
3 Filter
4 Cooler
5 Pressure relief valve
6 Humidifier
Figure 9.10 Single-duct system
7 Pre-heater
8 Zone heaters
9 Re heater
10 Plenums
Warmer air ducts Cooler 11 Warmer air plenums
air ducts 12 Cooler air plenums
13 Pre insulated spiro ducting
Fresh air
14 Air terminals
_£E 15 Air terminals with mixture
2 3 4 ,fc control
"i
1
' 12 =13;
"13
U13
Recircuiated air
Figure 9.11 Twin-duct system
