Accelerating drying process of tomato slices in a PV-assisted solar dryer using a sun tracking system

Akhijahani, Hadi Samimi; Arabhosseini, Akbar

doi:10.1016/j.renene.2018.02.056

Cited by 98 publications

(23 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where k and y are drying constants associated with this model. Several authors including Kamil Sacilik et al [5] and Hadi Samimi-Akhijani et al [17] used this model to describe drying properties of tomato slices.…”

Section: Determination Of Drying Constantsmentioning

confidence: 99%

“…"Direct" experimental methods of data collection for characterizing drying kinetics generally consist in monitoring weigh losses on the product during a thin-layer (0 to 3 cm) drying process [24,25,17,23]. The rate of humidity of the product is being measured at regular time intervals or eventually continuously by the means of an electronic balance that records the mass of the product over time [26].…”

Section: Data Collectionmentioning

confidence: 99%

“…Hadi Samimi-Akhijahani et al [17] used a lab-scale photovoltaic-ventilated solar dryer equipped with a collector in drying experiments of tomato. Drying air velocities applied were 0.5, 1, and 2 m/s.…”

Section: Interpretations Of Drying Curvesmentioning

confidence: 99%

“…It is a function of the product to be dried but it is mainly a function of operating conditions [19]. The effective moisture diffusivity increases with increasing air velocity [17] and temperature [25]. Figures 7,11,15 and 19 are derived from experimental values of moisture ratio and equation 11, which represents a linear form of the Fick second law of diffusion.…”

Section: Water Diffusivitymentioning

confidence: 99%

See 3 more Smart Citations

Drying Kinetics of Tomato, Okra, Potato and Mango in a Forced-Convective Solar Tunnel Dryer

Mamouda¹

2019

IJSGE

View full text Add to dashboard Cite

The design of a solar drier requires detailed information about drying kinetics of the products to be dried. The objective of our work is to characterize drying kinetics of tomato, okra, potato and mango and calculate the main drying parameters namely the drying rate, the moisture ratio and the effective diffusivity from the derivative form of the Fick's second law of diffusion. We found that solar drying of tomato, okra, potato and mango occur in both constant and falling-rate phases. Sound experimental conditions and specifically continuous measurements and data collection during experiments, emerged as a major factor allowing the observation of both a constant-rate and falling-rate phases. Two models namely the Henderson & Pabis Model and the Page Model were used to characterize the evolution of moisture ratios (MR) over time. For each of the abovementioned crops, the Page Model appeared to give a better description of MR = f(t) with χ 2 varying from 0.0051 to 0.0978. As per the Effective Moisture Diffusivity, its values were 8.866×10-09 , 4.651×10-09 , 4.969×10-09 and 5.177×10-09 for mango, tomato, potato and okra respectively. Calculated drying constants were compared with the ones obtained by other authors in similar experimental conditions. The experimental dryer we used was a forced convective solar tunnel dryer. All experimentations were conducted in Niamey (Niger) from 7 to

show abstract

Section: Determination Of Drying Constantsmentioning

confidence: 99%

Section: Data Collectionmentioning

confidence: 99%

Section: Interpretations Of Drying Curvesmentioning

confidence: 99%

Section: Water Diffusivitymentioning

confidence: 99%

See 2 more Smart Citations

Drying Kinetics of Tomato, Okra, Potato and Mango in a Forced-Convective Solar Tunnel Dryer

Mamouda¹

2019

IJSGE

View full text Add to dashboard Cite

show abstract

“…The solar radiation reflected from the mirrors to the receiver in the top of the solar tower is the most important factors affected the process of production of energy from the solar tower from here, the need to install and arrange the mirrors correctly is an important factor aide to increase 72 Energy Production Assessment of Solar Tower Based on the Study of the Mirror Shadowing and Blocking Effects energy production [7,[52][53][54][55][56][57]. In this research the phenomenon of blocking and shadowing of the mirrors on each other and its impact on the production of energy is studied through the use of 3D-Energy simulation program in Amman, the capital of Jordan.…”

Section: Introductionmentioning

confidence: 99%

Energy Production Assessment of Solar Tower Based on the Study of the Mirror Shadowing and Blocking Effects

Alrwashdeh¹

2019

ujme

View full text Add to dashboard Cite

Concentrated solar energy systems are one of the most important applications of solar energy, which will have a promising future in Jordan that because of Jordan has more than 300 sunny days with a high rate of solar radiation. In this research, the phenomenon of blocking and shadowing of mirrors in the solar field and their effect on the production of energy from the solar tower was examined and found that the mirrors far from the solar tower are affected in these phenomena significantly unlike the nearest mirrors.

show abstract

Prediction kinetic, energy and exergy of quince under hot air dryer using ANNs and ANFIS

Abbaspour‐Gilandeh

Jahanbakhshi

Kaveh

2019

Food Science & Nutrition

View full text Add to dashboard Cite

This study aimed to predict the drying kinetics, energy utilization (E u ), energy utilization ratio (EUR), exergy loss, and exergy efficiency of quince slice in a hot air (HA) dryer using artificial neural networks and ANFIS. The experiments were performed at air temperatures of 50, 60, and 70°C and air velocities of 0.6, 1.2, and 1.8 m/s. The thermal parameters were determined using thermodynamic relations. Increasing air temperature and air velocity increased the effective moisture diffusivity (D eff ), E u , EUR, exergy efficiency, and exergy loss. The value of the D eff was varied from 4.19 × 10 -10 to 1.18 × 10 -9 m 2 /s. The highest value E u , EUR, and exergy loss and exergy efficiency were calculated 0.0694 kJ/s, 0.882, 0.044 kJ/s, and 0.879, respectively. Midilli et al. model, ANNs, and ANFIS model, with a determination coefficient (R 2 ) of .9992, .9993, and .9997, provided the best performance for predicting the moisture ratio of quince fruit. Also, the ANFIS model, in comparison with the artificial neural networks model, was better able to predict E u , EUR, exergy efficiency, and exergy loss, with R 2 of .9989, .9988, .9986, and .9978, respectively. K E Y W O R D S adaptive neuro-fuzzy inference system, artificial neural networks, drying, quince, thermodynamic parameters | 595 ABBASPOUR-GILANDEH Et AL.focusing on energy and exergy analysis is very important (Lingayat, Chandramohan, & Raju, 2018;Yogendrasasidhar & Setty, 2018).Şevik, Aktaş, Dolgun, Arslan, and Tuncer (2019) analyzed the exergy and energy in the process of drying mint and apple slices in a solar and solar-infrared. The results indicated that the loss of exergy and exergy efficiency increases by increasing the air temperature. Exergy efficiency for mint in solar dryer and solar-infrared was 69.35% and 59. 07%, respectively. Akpinar, Midilli, and Bicer (2006) analyzed the energy and exergy in pumpkin. They reported that the pumpkin dried within the time range of 5.66-12 hr with a loss of exergy from 0 to 1.165 kJ/s. The maximum exergy of the system input was 2.198 kJ/s. Also, with increased exergy loss, the energy used in the solar dryer increased. Karthikeyan and Murugavelh (2018) studied the energy and exergy required to dry turmeric in a mixed-mode forced convection solar tunnel dryer and concluded that the loss of exergy and energy utilization ratio and its efficiency was increased with increasing temperature.

show abstract

Accelerating drying process of tomato slices in a PV-assisted solar dryer using a sun tracking system

Cited by 98 publications

References 48 publications

Drying Kinetics of Tomato, Okra, Potato and Mango in a Forced-Convective Solar Tunnel Dryer

Drying Kinetics of Tomato, Okra, Potato and Mango in a Forced-Convective Solar Tunnel Dryer

Energy Production Assessment of Solar Tower Based on the Study of the Mirror Shadowing and Blocking Effects

Prediction kinetic, energy and exergy of quince under hot air dryer using ANNs and ANFIS

Contact Info

Product

Resources

About