THERMAL SCIENCE

International Scientific Journal

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Suhaib J. Shbailat

,

Mohammed A. Nima

EFFECT OF ABSORBER PLATE HEIGHT ON THE PERFORMANCE OF SOLAR CHIMNEY UTILIZED WITH POROUS ABSORBER AND INTEGRATED WITH AN INSULATED ROOM

ABSTRACT
An experimental study has been carried out for testing the thermal performance and the thermal behavior enhancement of solar chimneys that can be achieved by adding metal foam. The solar chimney with test room system was located in Baghdad, Iraq, at latitude 33.3° N, longitude 44.4° E. In the experimental part of this study, outdoor tests were conducted from May to July, 202). On clear days, the tests were conducted from 9:00 a. m. to 4:00 p. m. The experimental side will compare the performance of two types of copper metal foam, 10 PPI and 40 PPI, (pores per inch) heat absorber plates at three different heights, 5 cm, 15 cm, and 25 cm. The results showed that the metal foam reduced the average temperature of the absorber plate. The highest temperature reduction was achieved with, 10 PPI and 40 PPI, absorber plates, 13.5 °C and 8.3 °C, respectively, at (H = 5 cm) and 60°. The maximum increase in air-flow velocity at the solar chimney with, 10 PPI and 40 PPI, absorber plates is, 43.7% and 25%, respectively, at (H = 5 cm). The absorber plate heights decrease the air velocity at the solar chimney. With metal foam as an absorber plate, 10 PPI and 40 PPI, the chimney's thermal efficiency is increased. At the absorber plate's height, the solar chimney's maximum thermal efficiency was 49%, 66.2%, and 72.1% (5 cm). At the height of the absorb-er plate, the maximum air change per hour was 18.8, 24.4, and 27.21 (5 cm).
KEYWORDS
solar chimney, Low-Energy Room, ventilation, metal foam, Porous Absorber
PAPER SUBMITTED: 2021-10-08
PAPER REVISED: 2022-04-21
PAPER ACCEPTED: 2022-05-04
PUBLISHED ONLINE: 2022-09-10
DOI REFERENCE: https://doi.org/10.2298/TSCI211008117S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 6, PAGES [4775 - 4795]
REFERENCES
  1. Jaluria, Yogesh. "Natural convection, heat and mass transfer.". Pergamon Press, 1980.
  2. Smažilová, E., and K. Papež. "Methods of Reducing Energy Consumption of Buildings Cooling System. ",(2008).
  3. Bansal, N. K., Rajesh Mathur, and M. S. Bhandari. "A study of solar chimney assisted wind tower system for natural ventilation in buildings." Building and Environment 29 (1994), no. 4: 495-500.
  4. Burek, S. A. M., and A. Habeb. "Air flow and thermal efficiency characteristics in solar chimneys and Trombe Walls." Energy and Buildings 39 (2007), no. 2: 128-135.
  5. Nadia, Saifi, Noureddine Settou, Boubekeur Dokkar, Belkhir Negrou, and Nasreddine Chennouf. "Experimental study and simulation of airflow in solar chimneys." Energy Procedia 18 (2012): 1289-1298.
  6. Di Cristofalo, S., S. Orioli, G. Silvestrini, and S. Alessandro. "Thermal behavior of «Scirocco rooms» in ancient Sicilian villas." Tunnelling and underground space technology 4 (1989), no. 4: 471-473.
  7. Sukhatme, Suhas Pandurang. "Solar Energy. 4th." Tata McGram Hill Publishing Company Limited (1999).
  8. Struckmann, Fabio. "Analysis of a flat-plate solar collector." Heat and Mass Transport, Project Report, (2008) 2008MVK160.
  9. Bashair A. Hamood "Performance Evaluation of a Solar Chimney Provided with a Porous Absorber Plate"; M.Sc. Thesis, presented to the University of Baghdad College of Engineering Mechanical Department (2019).
  10. Ashby, M.F. and Tianjian Lu, " Metal Foams: A survey", Science in China, Series B (2003), Vol. 46, No. 6,pp.521-532.
  11. Shao, L., and S. B. Riffat. "Flow loss caused by heat pipes in natural ventilation stacks." Applied thermal engineering 17 (1997), no. 4: 393-399.
  12. Khedari, Joseph, Boonlert Boonsri, and Jongjit Hirunlabh. "Ventilation impact of a solar chimney on indoor temperature fluctuation and air change in a school building." Energy and buildings 32 (2000), no. 1: 89-93.
  13. Raman, P., Sanjay Mande, and V. V. N. Kishore. "A passive solar system for thermal comfort conditioning of buildings in composite climates." Solar Energy 70 (2001), no. 4: 319-329.
  14. Kotani, H., S. D. Sharma, Y. Kaneko, T. Yamanaka, and K. Sagara. "Development of solar chimney with built-in latent heat storage material for natural ventilation." Department of Architectural Engineering. Osaka University. Accessed at the World Wide Web: serverlabo4. arch. eng. osaka-u. ac. jp (2005).
  15. Barbara, Lipska. "Comparison between Numerical and Observed Air and Contaminant Distribution for Mechanical Mixing and Displacement Ventilation Coupled with a Local Exhaust-Lessons Learnt." International Journal of Ventilation 7 (2008), no. 3: 233-250.
  16. Neves, Leticia, Maurício Roriz, and Fernando Marques da Silva. "Modeling a Solar Chimney for Maximum Solar Irradiation and Maximum Air Flow, for Low Latitude Locations." In Proceedings of Building Simulation (2011), vol. 2011, pp. 14-16..
  17. Amori, Karima E., and Saif Watheq Mohammed. "Experimental and numerical studies of solar chimney for natural ventilation in Iraq." Energy and Buildings 47 (2012): 450-457.
  18. Kalkan, Naci, and İhsan Dağtekin. "Passive cooling technology by using solar chimney for mild or warm climates." Thermal Science 20, no. 6 (2016): 2125-2136.
  19. Touma, Albert, Kamel Ghali, Nesreen Ghaddar, and Nagham Ismail. "Solar chimney integrated with passive evaporative cooler applied on glazing surfaces." Energy 115 (2016): 169-179.
  20. Zha, S., He, G., Ge, W., Wu, Q., Lv, D., & Li, Z.. Annual energy performance simulation of solar chimney in a cold winter and hot summer climate. In Building Simulation Tsinghua University Press (2019) (Vol. 12, No. 5, pp. 847-856).
  21. Setunge Sujeeva, Shi, Long, Anthony Ziem, Guomin Zhang, and Jie Li. "Solar chimney for a real building considering both energy-saving and fire safety-a case study." Energy and Buildings 221 (2020): 110016.
  22. Shbailat, Suhaib J., and Mohammed A. Nima. "Possible energy saving of evaporative passive cooling using a solar chimney of metal foam porous absorber." Energy Conversion and Management: X 12 (2021): 100118.
  23. Ma, Jing, and Yin Liu. "Passive solar energy building in mountain residence: Strategies and design." Thermal Science 00 (2021): 114-114.
  24. Al-Saraf Sarmad Aziz Abdul Hussein " Performance Analysis of Solar Tower Integrated with Flat Plate and Copper Foam Absorber "; PhD.Sc. Dissertation, presented to the University of Baghdad College of Engineering Mechanical Department (2019).
  25. Duffie, John A., and William A. Beckman. "Solar Radiation." Solar Engineering of Thermal Processes, 4th. Ed., Hoboken, New Jersey: Wiley: 12-20 (2013).
  26. Li, Yongcai, and Shuli Liu. "Experimental study on thermal performance of a solar chimney combined with PCM." Applied Energy 114 (2014): 172-178.
  27. Bassiouny, Ramadan, and Nader SA Korah. "Effect of solar chimney inclination angle on space flow pattern and ventilation rate." Energy and Buildings 41 (2009), no. 2: 190-196.
  28. Jalil, Jalal M., and Zinah Jaber Khalaf. "Induced buoyancy in inclined solar chimney for natural ventilation." Engineering and Technology Journal 29 (2011), no. 2: 183-194.
  29. Awbi, Hazim B. Ventilation of buildings. Routledge, (2002).
  30. Stylianos, Anestis. "The process of heat transfer and fluid flow in CFD problems." American Journal of Science and Technology 1 (2014), no. 1: 36-49.
  31. Kline, Stephen J. "Describing uncertainty in single sample experiments." Mech. Engineering 75 (1953): 3-8.
  32. Murtadha, Talib K., Hussien M. Salih, and Ali D. Salman. "Experimental Study Using Cooling With PCM and CFM." Al-Khwarizmi Engineering Journal 12, no. 3 (2016): 80-98.
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Effect of absorber plate height on the performance of solar chimney utilized with porous absorber and integrated with an insulated room

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