Öz
This study developed a mathematical model from consideration of the basic phenomena of heat transfer to predict the thermal behavior of a simultaneous charging, storage and discharging system during a heating cycle. A solution to the complex mathematical model was assumed in the form of a general equation for which the constants in the equation were determined. The mathematical model simulated an air packed bed storage system coupled to a flat plate solar collector which received intermittent solar radiation and supplied it in sinusoidal form to the packed bed. Finite Fourier series analysis with the first three harmonic terms was applied to the solution of the equation. Experiments were conducted by charging the packed bed system from a flat plate solar collector of area 1.5m2. The experimental results showed an average discharge temperature of 50.75 oC over the period of 7.00 hr to 17.00hr compared to the theoretically predicted average value of 50.40 oC.
Anahtar Kelimeler
Concrete Packed-bed storage Simultaneous Charging and Discharging Heating Cycle
Kaynakça
- Ataer, O.E. (2006). Storage of Thermal Energy. Encyclopedia of Life Support Systems (EOLSS) UNESCO. Oxford: EOLSS Publishers.
- Adeyanju, A. A (2009a). Effect of Fluid Flow on Pressure Drop in a Porous Medium of a Packed Bed. Journal of Engineering and Applied Sciences 4 (1): 83- 86.
- Duffie, J. A., and W. A. Beckman. (2006). Solar Engineering of Thermal Processes. New York: John Wiley.
- Laing, D; W. D. Steinmann; R. Tamme and C. Richter. (2006). Solid Media Thermal Storage for Parabolic Trough Power Plants. Journal of Solar Energy 80 (10): 1283-1289.
- Mark’s Standard Handbook for Mechanical Engineers. (1978). 8th Edition. New York: McGraw-Hill Book Company.
- Riaz, M. (1977) Analytical Solution for Single and Two Phase Models of Packed Bed Thermal Storage Systems. Journal of Heat Transfer. 99; Pp. 489-492.
- Schmidt, F. W. And Szego J. (1976) Transient Response of Solid Sensible Heat Thermal Storage Units Single Fluid. Transactions of the Association of Mechanical Engineers. Journal of Heat Transfer. 98. No 3. Pp.471- 477.
- Schumann, T. E. W. (1929). Heat Transfer: A Liquid Flowing Through a Porous Prism. Journal of Heat Transfer 5: 208-212.
- Tiwari, G.N. 1994. Experimental Simulation of a Grain Drying System. Energy Conversion and Management Journal 1:5.
Öz
Kaynakça
- Ataer, O.E. (2006). Storage of Thermal Energy. Encyclopedia of Life Support Systems (EOLSS) UNESCO. Oxford: EOLSS Publishers.
- Adeyanju, A. A (2009a). Effect of Fluid Flow on Pressure Drop in a Porous Medium of a Packed Bed. Journal of Engineering and Applied Sciences 4 (1): 83- 86.
- Duffie, J. A., and W. A. Beckman. (2006). Solar Engineering of Thermal Processes. New York: John Wiley.
- Laing, D; W. D. Steinmann; R. Tamme and C. Richter. (2006). Solid Media Thermal Storage for Parabolic Trough Power Plants. Journal of Solar Energy 80 (10): 1283-1289.
- Mark’s Standard Handbook for Mechanical Engineers. (1978). 8th Edition. New York: McGraw-Hill Book Company.
- Riaz, M. (1977) Analytical Solution for Single and Two Phase Models of Packed Bed Thermal Storage Systems. Journal of Heat Transfer. 99; Pp. 489-492.
- Schmidt, F. W. And Szego J. (1976) Transient Response of Solid Sensible Heat Thermal Storage Units Single Fluid. Transactions of the Association of Mechanical Engineers. Journal of Heat Transfer. 98. No 3. Pp.471- 477.
- Schumann, T. E. W. (1929). Heat Transfer: A Liquid Flowing Through a Porous Prism. Journal of Heat Transfer 5: 208-212.
- Tiwari, G.N. 1994. Experimental Simulation of a Grain Drying System. Energy Conversion and Management Journal 1:5.
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Bölüm | Articles |
| Yazarlar | |
| Yayımlanma Tarihi | 1 Haziran 2013 |
| Yayımlandığı Sayı | Yıl 2013 Cilt: 3 Sayı: 2 |