|
Item |
CROSS
FLOW TYPE |
Exchange Type |
¡çWater ¡éAir, Cross flow type |
Efficiency |
When the amount of water is equal to the heat exchange coefficient, its volume is greater than that of
the counter flow type and theoretical interpretation tends to be more difficult. |
Distribution of air stream |
Since the louvers are located on both sides, as the tower height increases, the fan is further away from
the air inlet. Therefore, dead space is generated in the heat exchange areas. |
Water spray device |
The hot water tank and the nozzle are exposed to the outside. So, it is easy to perform repairs and
maintenance. In case of poor water quality, the system is still operable. |
Power |
The fan generates vertical air flows. So, less obstacles exist and the static pressure loss is low. You
can use a lower power motor and save power consumption. |
Water spray pressure |
Gravity is used to spray water. So the water spray pressure is relatively low. |
Tower height |
The LOUVER, the FILLER and the ELIMINATOR are located on the same horizontal line. Thus, the
tower height is low. The filler height is equivalent to the tower height and the driving power of the pump
tends to be small. |
Area size of the tower |
The LOUVER, the FILLER and the ELIMINATOR are located on the same horizontal line, so the area
size tends to be large. If you add a ventilator, it tends to be even larger. |
Temperature of the cold water tank |
The temperature is not constant through the entire areas of the tank. The temperature at the edge of
the tank is lower than the middle area. |
Recirculation of the discharged air |
The fan¡¯s outlet is closely located to the louver, it is highly likely to recirculate hot and humid air that
was already discharged. |
Noise |
Since the tower is not too tall and there is almost no separation between the filler and the cold water
tank, it generates less noise. |
Repair and maintenance |
You can enter the tower through the entrance located in the middle of the tower. You can inspect the
tower in operation and partial repair and maintenance is easy to achieve. |
Price |
A mid- or small-size is same as a counter flow type. If a large size is used, it will cost more than a
counter flow type. |
|
Item |
Comparison of materials(STANDARD
MATTERIALS USED) |
FILLER
&
ELIMINATOR |
DOUGLAS, FIR, PP, PS,
PVC |
FRA
ME |
DOUGLAS FIR, SS400+HDG,
RF CON'C, FRP, SUS304 |
FAN
STACK |
DOUGLAS FIR, SS400+EPOXY,
SS400+HDG, RF CON'C, FRP, SUS304 |
CASING
& LOUVER |
DOUGLAS FIR, CACB, RF
CON'C, FRP |
FAN
DECK |
DOUGLAS FIR, FRP, RF CON'C,
SS400+HDG, SUS304, SS400+EPOXY |
HOT
WATER BASIN |
DOUGLAS FIR, FRP, RF
CON'C, SS400+HDG, SUS304, SS400+EPOXY |
COLD
WATER BASIN |
FRP, RF CON'C, SS400+HDG,
SUS304, SS400+EPOXY |