The Real-Time Monitoring System Design on Evaporative Cooling Air Conditioning Unit

The Real-Time Monitoring System Design on Evaporative Cooling Air Conditioning Unit

Q. Tian-wei 

School of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an, China, 710048

31 December 2012
| Citation



This paper presents an automation design on evaporative cooling air conditioning unit. The evaporative cooling air conditioning unit includes indirect stage (heat pipe) and direct stage (pads). The unit and air conditioning room build up a single-chamber VAV (Variable Air Volume) air conditioning system. First, Siemens S7-200 PLC controller is used to control the air conditioning system. Then, KingView software is used to design the HMI (Human Machine Interface). The HMI can monitor all equipment's operation clearly. Monitoring data is accurate and real-time. The HMI can also conduct the animation demonstration.

1. Evaporative Cooling Systems
2. Autocontrol Program Design
3. Conclusion

[1] Peilin Cheng, Application of evaporative cooling technology in air conditioning, Xi’an Refrigeration, №1, pp.1-7, 1999

[2] ZHANG Zi-hui, HUANG Xiang, and ZHANG Jing-chun, Automation control of refrigeration and air conditionging, Beijing, Science Press, 1999

[3] ZHANG Zi-hui, Autocontrol and pyrology measuring, Beijing, Architecture Industry Publishing Company, chapter14, 1996

[4] C.W. Curt. “Control concepts for evaporative cooling systems,”. ASHRAE Transactions, 92-volume (pt1B), pp.347-357,1986

[5] QIANG Tian-wei, HUANG Xiang, “Designing, fixing and debugging of a building Autocontrol project,” The northwest textile college transaction, vol.14(supplement), pp.16-19, 2001

[6] QIANG Tian-wei, SHEN Heng-gen, “Application of autocontrol technology in evaporative cooling systems in northwest area of china, ” International Journal of Heat & Technology,Volume 22, n. 1, pp.165-170, 2004