Air Conditioner Unit with Thermal Energy Storage by Open Loop System

Abstract:

Energy is very important in our daily activity especially in commercial and industries sector. These requirements have increased from time to time and as the result it is significantly end up with high energy demand and high energy cost. Thermal Energy Storage (TES) can be used as an alternative solution to reduce high energy demand and to reduce energy cost. The main reason of using TES system is to shift high energy demand from peak period to off peak period. Meanwhile, for building owner is to reduce energy cost by take opportunity low cost energy during off peak period. The purpose of this study is to develop a split unit air conditioner by substituting the circulation system with chilled water. The research was conducted by fabricating an air-conditioning blower unit integrated with cool thermal energy storage. Chilled water was used as medium to stored cool thermal energy. Water pump was used to circulate chill water from storage tank to evaporator and return back to storage tank. Series of experiments were conducted to test cooling performance of the developed product to produce cooling effect inside a chamber room. The experiments were conducted in a chamber room located at Block C6, Universiti Tun Hussein Onn Malaysia. Finally, from experiment found 0.15 meter³ of chilled water had successfully maintained chamber design temperature more than 140 minutes.

• Periodical: Applied Mechanics and Materials (Volumes 465-466)
• Pages: 237-241
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.465-466.237
• Online since: December 2013
• Authors: Inra Supardi, Zamri Noranai, Mohammad Zainal M. Yusof
• Keywords: Air Condition, Energy, Energy Consumption (EC), Energy Storage

References

[1] Noranai, Z., et al., Development of Cooling Load Demand Program for Building in Malaysia. International Journal of Mechanical and Industrial Engineering, 63 (2012) 183-188.

[2] Madli, F., et al. Development of Split Air-Conditioning System using Chill Water as the Cooling Medium. Proceedings of World Academy of Science, Engineering and Technology. 68 (2012) 1857-1862.

[3] Chan, S.A., Energy Efficiency – design low Energy Building Using Energy 10. Energy Efficiency (2004).

[4] Iqbal, I. and M.S. Al-Homoud, Parametric analysis of alternative energy conservation measures in an office building in hot and humid climate. Building and Environment. 42 (2007) 2166-2177.

DOI: 10.1016/j.buildenv.2006.04.011

[5] Noranai, Z., et al., Energy cost reduction by partially operation of thermal energy storage based on building load profile. Proceedings of International Conference on Environment Science and Engineering. (2011) 227-233.

[6] Dong Zhang, Z.L., Jianmin Zhou, Keru Wu, Development of thermal energy storage concrete. Cement and Concrete Research. (2004).

[7] Abdullah Yildiz , A.G., Energy and exergy analyses of space heating in buildings. Applied Energy. (2009).

[8] Noranai, Z. and M.N. Kammalluden, Study of building energy index in Universiti Tun Hussein Onn Malaysia. Academic Journal of Science. 1/2 (2012) 429-433.

DOI: 10.22178/pos.41-2

[9] Noranai, Z. and M.Z. Md Yusof, Study of energy efficiency opportunities in UTHM. World Academy of Science, Engineering and Technology, 77 (2008) 745-751.

[10] Dincer, I., Thermal Energy Storage. Encyclopedia of Energy. 6 (2004) 14.

[11] Noranai, Z. and M.Z.M. Yusof, Economical Analysis of Thermal Energy Storage by Partially Operation. World Academy of Science, Engineering and Technology. 59 (2011) 2567-2572.

[12] Ashok, S. and R. Banerjee, Optimal cool storage capacity for load management. Energy. 2 (2003) 115-126.

DOI: 10.1016/s0360-5442(02)00109-3

[13] TNB, ELECTRICITY TARIFF: This tariff is effective from 1st March 2009 and supersedes the previous tariff schedule which was effective on 1st July 2008, Tariff Manual. (2009).

DOI: 10.1111/j.1468-0084.1988.mp50003006.x

[14] Li, Q., et al., Applying support vector machine to predict hourly cooling load in the building. Applied Energy. 86 (2009) 2249-2256.

DOI: 10.1016/j.apenergy.2008.11.035

[15] Y.H. Yau, Y.W.F. a.M.H.H.M., A preliminary study on hvac systems and thermal comfort in a tropical university building in Malaysia. International Journal of Mechanical and Materials Engineering. 3 (2008) 160.