Effect of Air Channel Depth and Mass Flow Rate on the Efficiency of Hybrid Thermal - Photovoltaic Sensor

M Lyes, K Tahar, H Ouided, C Hamid

Abstract


We present in this paper the effect of the mass flow rate and  air channel depth on the efficiency of hybrid thermal-photovoltaic sensor. A numerical simulation of the performance of the thermal-photovoltaic sensor with a heat exchanger including fins attached to the absorber and using air as a coolant is presented. A thorough analysis of the mass flow rate, and air channel depth influence on the efficiency and the working of the system are examined.  We use the heat transfer equations cascade of the components as a matrix of four unknown’s temperatures, which are the glass, cells, fluid and insulation plate temperatures. To solve this matrix, the fixed point and Gauss-Seidel method, at the transitory regime are used. Results at solar irradiance of 1120 W/m2 show that the combined  thermal-photovoltaic efficiency is increasing from 60% to 75% and the mass flow rate necessary to maintain the cells at a constant temperature is decreasing form 1.8 to 1.2 Kg/s, when the exchanger channel depth varies from 0.35 to 0.05 m. The overall conversion efficiency of the system increases from 25% to 60%, and the cell temperature decreases from 345K to 335K when mass flow rate changes from 0.02 kg/s to 0.1 kg/s.


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References


Kern Jr E C, Russell M C, Combined photovoltaic and thermal hybrid collector system, In: Proceedings of 13th IEEE Photovoltaic Specialist. (1978),1153—1157. Crossref

L.W. Florschuetz, Extension of the Hottel-Whillier model to the analysis of combined photovoltaic thermal flat collector, Sol Energy Vol. 22 (1979),361-366. Crossref

H.P. Garg, R.S Adhikari, Conventional hybrid photovoltaic thermal (PV/T) air heating collectors: Steady-state simulation, Renewable Energy Vol.11 (1997), 363-385. Crossref

H.P. Garg and R.S. Adhikari, Performance analysis of a hybrid photovoltaic/thermal (PV/T) collector with integrated CPC troughs, Int. J. Energy. Res Vol. 23 (1999), 1295-1304. Crossref

G. Palani and E. J. Lalith Kumar, heat and mass transfer effects on a free convective flow past a semi-infinite vertical cone with thermal radiation and chemical reaction, JP Journal of heat and mass transfer Vol.9 (2011), 103-129. Crossref

G.R. Whitfield, R.W. Bentley, C.K. Weatherby, B. Clive, The development of small concentrating pv systems, Proc. of 29th IEEE PVSC. New Orleans. (2002), 1377-1379. Crossref

M.Y. Othman, B. Yatim, Performance analysis of a double-pass photovoltaic/thermal (PV/T) solar collector with CPC and fins, Renewable Energy Vol. 30 (2005), 2005-2017. Crossref

X. Chen, Y.M. Xuan, Y.G. Han, Investigation on performance of a solar
thermophotovoltaic system, Sci. China. Ser. E-Tech. SciVol.51(2008), 2285-2294.

S. A. Nada, W. G. El Shaer and A. S. Huzayyin heat transfer and pressure drop characteristics of multi tubes in tube helically coiled heat exchanger, JP Journal of heat and mass transfer Vol.9 (2011),173 – 202. Crossref

Koutama Amara, RidhaChouikh and AmenAllahGuizani, heat and mass transfer analysis in a rotary wheel, JP Journal of heat and mass transfer Vol.9 (2011),1-12.

R. Ari, Optical and thermal properties of compound parabolic concentrators, Sol. Energy Vol.18 (1976), 497-511. Crossref

K. Sopiana, H.T. Liu, S. Kakac, T.N. Veziroglu, Performance of a double pass photovoltaic thermal solar collector suitable for solar drying systems, Ener. Conv. Manage Vol. 41(2000), 353-365.

S. Sharples, P.S. Charlesworth, Full-scale measurements of wind- induced convective heat transfer from a roof-mounted flat-plate solar collector, Sol. Energy Vol.62 (1998), 69-77. Crossref

S. Srinivas, T. Malathy and A. Subramanyam Reddy, analysis of heat and mass transfer on pulsatile flow in an inclined porous channel with thermal-diffusion and chemical reaction, JP Journal of heat and mass transfer Vol.9 (2011),57-100. Crossref

S.J. Anand, T. Arvind, Energy and exergy efficiencies of a hybrid photovoltaic–thermal (PV/T) air collecto, Renewable Energy Vol.32 (2007), 2223-2241. Crossref

A. Duffine, W.A. Beckman, Solar Engineering of Thermal Processes, John Wiley & Sons, New York, (1991).

G. Walker, Evaluating MPPT converter topologies using a MATLAB PV model, J. Electr. Electron. Eng Vol.21 (2001), 49–56.

R. Kadri, H. Andrei, J. P. Gaubert, T. Ivanovici, G. Champenois, P. Andrei, Modeling of the Photovoltaic Cell Circuit Parameters for Optimum Connection Model and Real-Time Emulator with Partial Shadow Conditions, Energy Vol.42, (2012). Crossref

Ramos Hernanz, JA., Campayo Martín, J.J., Zamora Belver, I., LarrañagaLesaka, J.,Zulueta Guerrero, E., Puelles Pérez, E, Modelling of Photovoltaic Module, Conference on Renewable Energies and Power Quality (ICREPQ’10) Granada (Spain), March,(2010). Crossref




DOI: http://dx.doi.org/10.21152/1750-9548.12.2.147

Copyright (c) 2018 M Lyes, K Tahar, H Ouided, C Hamid

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