SENSIBLE EQUIPMENT COMPANY, INC.
P.O. BOX 669, GOLDENROD, FLORIDA 32733
PH (407) 296-8068 FAX (407) 296-7420
EMAIL kle@tricoil.com
TRICOIL® COMPARISON: To effectively provide a comfortable indoor environment, an air conditioning system must provide cooling as well as dehumidification. The following example illustrates the effectiveness of the TRICOIL® system as compared to a traditional system.
Example: An air conditioning system is required to provide 10,000 CFM of supply air to cool a room to 76°F and 45 % RH. The room sensible heat factor is 0.80 and the amount of outside air required is 2000 CFM. Calculations show that 8 °F of reheat is required to maintain the desired indoor relative humidity and to bring the supply air to 70% relative humidity as recommended in ASHRAE Standard 62-1989. The traditional system uses electric reheat and the TRICOIL® system uses the patented TRICOIL recuperative processs.
| SUMMARY
|
TRADITIONAL
SYSTEM WITH ELECTRIC HEAT
|
TRICOIL®
METHOD
|
| AIR VOLUME |
10,000
CFM
|
10,000 CFM
|
| PRIMARY COOLING |
41.1 TONS
|
34.1
TONS
|
| MOISTURE REMOVAL |
117.0
LBS/HR
|
117.0 LBS/HR
|
| POWER REQUIRED: |
|
|
| CONDENSING UNIT |
46.9
KW
|
37.5
KW
|
| SUPPLY AIR FAN |
5.0
KW
|
5.2
KW
|
| ELECTRIC REHEAT |
25.8
KW
|
0 KW
|
| TRICOIL PUMP |
0
KW
|
0.2
KW
|
| TOTAL |
77.7 KW
|
42.9
KW
|
| EFFICIENCY: |
|
|
| TOTAL COOLING (1) |
1.89 KW/TON
|
1.25
KW/TON
|
| DEHUMIDIFICATION (2) |
10.54
GR/W
|
19.09
GR/W
|
RESULTS: The TRICOIL® method uses only 55% of the power that the traditional system uses to cool and dehumidify this room.
Notes:
(1) The Total Cooling efficiency is based on the total power required
to cool and dehumidify the room including the electric reheat energy.
(2) The dehumidification efficiency is a new method for ranking
air conditioning systems based on their moisture removal capability.
The units. "GR/W" are Grains of Moisture Removed per Total Watts
of Power Input. There are 7000 grains of moisture in a pound of
water.
PSYCHROMETRIC CHART: The following chart indicates the process of a typical TRICOIL operation such as the one illustrated in the above example.
|
STATE
POINTS
a. Room Condition 76°F DB/62.0°F WB/45%RH b. Outside Air 93°F DB/80.0°F WB c. Mixed Air; 80°F DB/67.0°F WB d. Precooled Air 72°F DB/64.2°F WB e. Primary Air 50°F DB/49.8°F WB f. Reheated Air 58°F DB/53.5°F WB g. Supply Air 60°F DB/54.5°F WB/70%RH PROCESS
|
