| Application of Environmental Air Cooler in
High-temperature Plant |
| I.Survey of Project: |
| 1. There is an area of 3500 square meters in a certain
electronic-factory plant in GuangDong , which is 3.5 meters high and
accommodates 800 workers. Temperature in plant is about 40¡æ in summer. Air sanitary
condition gets too bad because of the post with a dense crowd and strong odor and smog
emitted from furnace for soaking stannum. Too hot or lacking oxygen lead to the case that
workers under that condition often fall in a faint, which increases accident expenditure.
Though there are a lot of fans or ventilators fitted in the plant, it is useless to
improve quality and oxygen content of the air. The company purposed setting up traditional
air condition system. It has been estimated that electric cost on each working day (12
working hours) was 2304 Yuan RMB on the refrigeration design of 1 horsepower per 15 sq.
meters (1horsepower per 15 square meters). The company has to cancel plan of setting up
compressor air condition system on factory for running fare is so expensive and it still
has no solutions about indoor sanitary condition. |
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| II.Feasible Solutions Provided by Environmental Air
Cooler: |
| According to actual condition of the electronic-factory, we set up 40
environmental air cooler (model: KLF-18A2), wind rate for each air condition
is 18000 m3per hour and the total of wind rate is 720000 m3per hour. Hanging height of air
blast orifice is 2.5 meter. Ventilative time in factory is 60 times per hour and air blast
speed is about 5 meter per second. After the air conditions put into service, it takes
good effect on ventilation and indoor thermoregulation. |
|
| The actual measurement data when air condition running is following
on table: |
| Weather Condition |
Fine |
Fine |
Fine |
Flurry |
Fine |
Fine |
Cloudy |
Fine |
| Outdoor Temperature(¡æ) |
32 |
32 |
33 |
28 |
30 |
31 |
30 |
34 |
| Indoor Air Blast Orifice Temperature (¡æ) |
26 |
25 |
25 |
24 |
25 |
26 |
26 |
26 |
| Difference in outdoor/indoor temperature(¡æ) |
6 |
7 |
8 |
4 |
5 |
5 |
4 |
8 |
| Relative Humidity |
52% |
56% |
52% |
80% |
60% |
62% |
72% |
50% |
|
| After environmental air cooler fitted and put into
service, air quality in plant was improved remarkably. When it is hot outdoor, temperature
inside the plant still can de reduced about 8¡æ by the air cooler and the air
sanitary problems in the plant can also be solved by 60 ventilative times per hour. |
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