ENERGY USE PERFORMANCE IN THE BUILDING COOLING SYSTEM USING A TERMOSTAT CONTROL, ON / OFF DIGITAL AND FUZZY LOGIC

Henry Nasution, FTI Univ. Bung Hatta, Indonesia

Abstract


In this study, an alternative solution to reduce energy consumption in building airconditioning system is proposed and introduced. The operation and energy consumption of the system operated as either with the new control system or with the traditional on/off control were compared. Measurements were taken during the experimental period at a time interval of one minute for a set point temperature of 22 and 23o C. The room temperature, energy consumption and energy-saving ware analyzed. The main objective is to determine the amount of energy saved when a digital on/off and fuzzy logic controller is applied to the air-conditioning system. The experimental results show that significant energy savings of approximately 24 to 43% for digital on/off and 48 to 73% for fuzzy logic control were obtained. The results also indicated that the digital on/off and fuzzy logic control can save energy and improve indoor comfort significantly for building AC system compared to the thermostat control technique.


Keywords


Thermostat; digital on/off; fuzzy logic; air conditioning; energy saving

Full Text:

PDF

References


Alcala, R. (2005). “A genetic rule weighting and selection process for fuzzy control of heating, ventilation and air conditioning systems”. Engineering Applications of Artificial Intelligence, Vol. 18, No. 3, 279-296.

Brodrick, J., Roth, K.W., Goetzler, W. (2004). “Variable flow and volume refrigerant system”. ASHRAE Journal, Vol. 46, No. 1, S164-S165.

Buzelin, L.O.S., Amico, S.C., Vargas, J.V.C., Parise J.A.R. (2005). “Experimental development of an intelligent refrigeration system”, International Journal of Refrigeration, Vol. 28, 165- 175.

Chen, W., Deng, S. (2006). “Development of a dynamic model for a DX VAV air conditioing system”. Energy Conversion and Management, Vol. 47, No. 18-19, 2900-2924.

Engdahl, F., Svensson, A. (2003). “Pressure controlled variable air volume system”. Energy and Buildings, Vol. 35, No. 11, 1161-1172.

Georges, B. (2004). “Experimental analysis of the performances of variable refrigerant flow systems”. Building Service Engineering Research Technology, Vol. 25, No. 1, 17-23.

Gopal, M. (2002). Control systems principles and design. New Delhi: Tata McGrawHill.

Jin, X., Ren, H., Xiao, X. (2005). “Prediction-based online optimal control of outdoor air of multi-zone VAV airconditioning systems”. Energy and Buildings, Vol. 37, No. 9, 939-944.

Li, X. (2004). “A new method for controlling refrigerant flow in automobile air conditioning”. Applied Thermal Engineering, Vol. 24, No. 7, 1073-1085.

Nasution, H. (2006). “Energy analysis of an air conditioning system using PID and fuzzy logic control. PhD Thesis, Malaysia: Universiti Teknologi Malaysia.

______, dan Hassan, M.N.M. (2006). “Potential electricity savings by variable speed control of compressor for air conditioning systems”. Journal Clean Technologies Environmental Policy, Vol.8, No.2, 105-111.

Ozawa, K. (2003). “A tuning method for PID controller using optimization subject to constraints on control input”. ASHRAE Transactions, Vol. 109, No. 2, 4638- 4648.

Pan, Y. (2003). “Measurement and simulation of indoor air quality and energy consumption in two shanghai office buildings with variable air volume systems”. Energy and Buildings, Vol. 35, No. 9, 877-891.

Rajagopalan, P., Rajasekaran, K., Alagarsamy, S., Iniyan, S., Lal, D.M. (2008). “Experimental analysis of fuzzy controlled energy efficient demand controlled ventilation economizer cycle variable air volume air conditioning system”. Thermal Science, Vol. 12, No. 3, 15-32.

Shao S. (2004). “Performance representation of variable-speed compressor for inverter air conditioners based on experimental data”. International Journal of Refrigeration, Vol. 27, No. 8, 805- 815.

Yu, P.C.H. (2001). “A study of energy use for ventilation and air-conditioning system in Hong Kong”. PhD Thesis. Hongkong: The Hong Kong Politechnic University.

Zhen W., Huang, Zaheeruddin M., Cho S. H. (2006). “Dynamic simulation of energy management control functions for HVAC systems in buildings. Energy Conversion and Management, Vol. 47, No. 7-8, 926-943.

Zhou Y.P. (2006). “Energy simulation in the variable refrigerant flow air-conditioning system under cooling conditions”. Energy and Buildings, Vol. 39, No. 2, 212-220




DOI: https://doi.org/10.21831/jps.v16i2.3388

Refbacks

  • There are currently no refbacks.




Copyright (c)



 p-ISSN: 1412-3991 || e-ISSN: 2528-7036

Indexed by:

     

View My Stats