Journal of the Architectural Institute of Korea Planning & Design (대한건축학회논문집:계획계)

Architectural Institute of Korea (대한건축학회)
권호 표지
DOI QR코드

DOI QR Code

Energy Consumption and CO2 Emissions Reductions in a Desiccant-assisted Evaporative Cooling System by Hybrid PV/T System

제습증발냉각시스템의 PV/T 적용을 통한 에너지 소비량 및 이산화탄소 배출량 저감효과 분석

  • Received : 2014.03.05
  • Accepted : 2014.07.22
  • Published : 2014.08.30
⟨ Previous Next ⟩

Abstract

The main thrust of this paper is to estimate the energy savings and CO2 reduction potentials acquired by hybrid photovoltaic/thermal(PV/T) system in to the established liquid desiccant-assisted evaporative cooling system. The PV/T system provides the electric power and hot water simultaneously, which are required to operate the liquid desiccant unit in the established system. The required capacity of the PV/T system can be determined for the peak electric load or peak thermal load of the liquid desiccant-assisted evaporative cooling system. Consequently, energy simulations were performed for the two different PV/T integrated system alternatives; eletric load-follow and thermal load-follow operation. The result shows that the PV/T system sized for the electric load may provide more than 20% of primary energy savings and CO2 emissions reductions compared with the PV/T system sized for the peak thermal load. Also it has economical, energetic and environmental benefits in payback time.

Keywords

Acknowledgement

Supported by : 한국연구재단

References

  1. 강용혁, PV 시스템 설치를 위한 경사면 태양광에너지 분석에 관한 연구 한국태양에너지학회 논문집 27(1), 2007
  2. 석윤진, 김민휘, 진정탁, 조홍재, 정재원, 태양광을 이용한 증발냉각기반 전외기 공조시스템 적용 UFAD 시스템 설계를 위한 Design Tool 개발, 한국건축친환경설비학회 논문집, 5(4), 2011
  3. Duffie Jone A, Beckman William A, Solar Engineering of Thermal Process, John Wiley & Sons Inc. 1991
  4. Hottel, H. C., & Whillier, A. Evaluation of flat-plate solar collector performance, In Trans. Conf. Use of Solar Energy, 1955
  5. Jalalzadeh-Azar, A. A., A Comparison of Electrical- and Thermal-Load-Following CHP Systems. ASHRAE Transactions, 110, 2004
  6. Kim, Min-Hwi, J.H. Kim, O.H. Kwon, A.S. Choi, J.W. Jeong, Energy Conservation Potential of an Indirect and Direct Evaporative Cooling Assisted 100% Outdoor Air System, Building Services Engineering Research and Technology, 32(4), 2011
  7. Kim, Min-Hwi, Jun-Seok Park, Jae-Weon Jeong, Energy saving potential of liquid desiccant in evaporative cooling-assisted 100% outdoor air system, Energy, 59, 2013
  8. Klein S. A., Calculation of monthly average insolation on surface tilted towards the equator, ASHRAE Transactions, 19(4), 1962
  9. Knapp, K., & Jester, T., Empirical investigation of the energy payback time for photovoltaic modules. Solar Energy, 71(3), 2001
  10. Kostic, L. T, Pavlovic, T. M, Pavlovic, Z. T., Optimal design of orientation of PV/T collector with reflectors, Applied Energy, 87(10), 2010
  11. Kumar, S., & Tiwari, G. N., Life cycle cost analysis of single slope hybrid (PV/T) active solar still. Applied Energy, 86(10), 2009
  12. Liu, B. Y. H, and R. C. Jordan, The Interrelationship and Characteristic Distribution of Direct, Diffuse and Solar Radiation, Solar Energy, 4(3), 1960
  13. Mago, P. J., Chamra, L. M., & Ramsay, J., Micro-combined cooling, heating and power systems hybrid electric-thermal load following operation. Applied Thermal Engineering, 30(8), 2010
  14. McQuiston, F. C., Parker, J. D., & Spitler, J. D., Heating, ventilating, and air conditioning: analysis and design (Vol. 6). Wiley. 2010
  15. Sherwani, A. F., & Usmani, J. A., Life cycle assessment of solar PV based electricity generation systems: A review. Renewable and Sustainable Energy Reviews, 14(1), 2010
  16. Tripanagnostopoulos, Y., Nousia, T. H., Souliotis, M., & Yianoulis, P., Hybrid photovoltaic/thermal solar systems. Solar energy, 72(3), 2002
  17. Tripanagnostopoulos, Y., Souliotis, M., Battisti, R., & Corrado, A., Energy, cost and LCA results of PV and hybrid PV/T solar systems. Progress in Photovoltaics: Research and applications, 13(3), 2005
  18. Zondag, H. A., De Vries, D. W., Van Helden, W. G. J., Van Zolingen, R. J. C., Van Steenhoven, A. A., The yield of different combined PV-thermal collector designs. Solar energy, 74(3), 2003