Heat transfer coefficient and thermal losses of solar collector and Nusselt number correlation for rectangular solar air heater duct with longitudinal fins hold under the absorber plate

Chabane, Foued; Moummi, Noureddine; Bensahal, Djamel; Brima, Abdelhafid

doi:10.3103/s0003701x14010046

Cited by 18 publications

(9 citation statements)

References 6 publications

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“…There is a great diversity of designs and modes of operation: forced convection, Ahmad et al, [4], Indirect forced convection, Bahlou et al, [5], Direct cabinet and indirect cabinet solar dryers, Banoult et al, [6], Solarbiomass hybrid dryer enhanced by the Co-Gen technique, Tadahmun and Hussai, [7]; Leon and Kumar, [8], Greenhouse solar dryers, Abdullah, [9]; Bechoff et al, [10], Direct solar dryer, Hii et al, [11], Heat pumps, Fadhel et al, [12]; Li et al, [13], Indirect natural convection solar dryer with chimney, solar dryer with greenhouse as collector, solar tunnel dryer (air collector), hybrid solar dryer assisted by evacuated tube collectors, Jairaj et al, [14]. F. Chabane & al [15][16][17][18][19][20][21][22][23][24][25][26], Presents a study of heat transfer in a solar air heater by using new design of solar collector. The collector efficiency in a single pass of solar air heater without, and with using fins attached under the absorbing plate has been investigated experimentally the maximum efficiency obtained for the 0.012 and 0.016 kg/s with, and without fins were 40.02, 51.50% and 34.92, 43.94%.…”

Section: Introductionmentioning

confidence: 99%

Solar drying of drying agricultural product (Apricot)

Chabane¹,

Bensahal²,

Brima³

et al. 2019

MMEP

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This work allowed us to study the effects of some parameters on drying and specify the most influential. Drying is basically a phenomenon of removal of liquid by evaporation from an apricot. Solar drying is one of the processes that have found application in Algeria, because of the important quantities of solar irradiations that can be exploited in this country.Drying basically comprises of two fundamental and simultaneous processes: heat is transferred to evaporate liquid, and mass is transferred as a liquid or vapor within and the apricot as a vapor from the surface. The experimental study is investigated in the Biskra city of Algeria for drying Apricot in the drying room which it integrated with a solar air collector (new design) which the drying chamber receives the temperature from the solar collector which absorbed from sun. We have to spread the produce on a suitable surface and let it dry in the drying room and added the study of thermal performance of solar air collector and trying with three different airflow rates, namely, 0.018, 0.028 and 0.034 kg/s are conducted. Finally the results have been illustrated with mass water content, product temperature, drying room temperature, outlet temperature in both solar collector and drying room and enthalpy of solar collector and drying room which effect with increase the mass flow rate.

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Section: Introductionmentioning

confidence: 99%

Solar drying of drying agricultural product (Apricot)

Chabane¹,

Bensahal²,

Brima³

et al. 2019

MMEP

Self Cite

View full text Add to dashboard Cite

show abstract

“…There is a great diversity of designs and modes of operation: forced convection, Ahmad et al, [4], Indirect forced convection, Bahlou et al, [5], Direct cabinet and indirect cabinet solar dryers, Banoult et al, [6], Solarbiomass hybrid dryer enhanced by the Co-Gen technique, Tadahmun and Hussai, [7]; Leon and Kumar, [8], Greenhouse solar dryers, Abdullah, [9]; Bechoff et al, [10], Direct solar dryer, Hii et al, [11], Heat pumps, Fadhel et al, [12]; Li et al, [13], Indirect natural convection solar dryer with chimney, solar dryer with greenhouse as collector, solar tunnel dryer (air collector), hybrid solar dryer assisted by evacuated tube collectors, Jairaj et al, [14]. F. Chabane et al [15][16][17][18][19][20][21][22][23][24][25][26], Presents a study of heat transfer in a solar air heater by using new design of solar collector. The collector efficiency in a single pass of solar air heater without, and with using fins attached under the absorbing plate has been investigated experimentally the maximum efficiency obtained for the 0.012 and 0.016 kg/s with, and without fins were 40.02, 51.50 % and 34.92, 43.94 %.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling of Drying of Mint in a Forced Convective Dryer Based on Important Parameters

Chabane¹,

Adouane²,

Moummi³

et al. 2019

IJHT

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Thin layer drying of mint was evaluated using a solar dryer at the university of Biskra. The experimental moisture ratios of the samples were fitted to eight drying models. The drying experiments were carried out on the mint with effect the mass flow rate, which varies from 0.018 to 0.034 kg.s -1 . In this part of the study, we cut the mint to virtual median little pieces. The mathematical models were tested with the drying behavior of mint in the laboratory solar dryer. The coefficients of the models were determined by the multiple regression method in the solar dryer to find out the most suitable moisture ratio model. We conclude that the mass flow rate influence onto the coefficients of correlation it's meaning the mass flow it is an important factor. The our model was found as the best model based on statistical parameters of R², RMSE and χ². The model is applicable to predict the moisture content of mint during solar drying of mint.

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“…Some literatures have used the thermal performance of a solar air heater with roughness elements on absorber plate and without fins for see the optimal point, and no forget the effect climate onto the collector, especially the ambient temperature, so we can be seen that ambient temperature is effect onto the thermal efficiency of solar collector [10][11][12][13][14][15][16][17][18][19]. F. Chabane & al [20][21][22][23][24][25][26][27][28][29][30][31], Presents a study of heat transfer in a solar air heater by using new design of solar collector. The collector efficiency in a single pass of solar air heater without, and with using fins attached under the absorbing plate has been investigated experimentally the maximum efficiency obtained for the 0.012 and 0.016 kg/s with, and without fins were 40.02, 51.50% and 34.92, 43.94%.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of thermal efficiency of a solar air heater with an irregularity element on absorber plate

Chabane¹,

Moummi²,

Brima³

2018

IJHT

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The thermal performance of a solar air heater is presented with addition fins. In this work, we developed an experimental study on the thermal performance of a solar collector air with and without semi-cylindrical baffle. In trying to change the mass flow rates times for both configurations corresponding to tilt angle  = 37 °, it represented the optimum tilt angle of the city of Biskra. The essential parameters are measurements of the outlet, an inlet and an ambient temperature and covering according to the influence of the wind velocity. Experiments on a solar collector designed for this purpose, have determined the thermal efficiency of solar collector with and without semi-cylindrical baffle to different flow intervals to actually follow the evolution of the outlet temperature of the air. The results provide the best thermal efficiency for a solar collector flat plate with semi-cylindrical baffle is increased by 19% that of without baffle.

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Heat transfer coefficient and thermal losses of solar collector and Nusselt number correlation for rectangular solar air heater duct with longitudinal fins hold under the absorber plate

Cited by 18 publications

References 6 publications

Solar drying of drying agricultural product (Apricot)

Solar drying of drying agricultural product (Apricot)

Mathematical Modeling of Drying of Mint in a Forced Convective Dryer Based on Important Parameters

Experimental study of thermal efficiency of a solar air heater with an irregularity element on absorber plate

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