Revised solar maps of Algeria based on sunshine duration

Yaïche, M.R.; Bouhanik, A.; Bekkouche, Sidi Mohammed El Amine; Malek, A.; Benouaz, T.

doi:10.1016/j.enconman.2014.02.063

Cited by 84 publications

(35 citation statements)

References 24 publications

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“…For environmental reasons, this source which is largely available in the North African countries continues to be increasingly privileged throughout the world. The arid Saharan climate is known to offer a good solar radiation during all the year (Bennamoun, ; Yaiche, Bouhanik, Bekkouche, Malek, & Benouaz, ). Among the interesting applications, we can consider the post‐harvest heat treatments of the date palm fruits largely produced in the south of Algeria (Yaiche et al, ).…”

Section: Introductionmentioning

confidence: 99%

Solar drying process to obtain high standard “deglet‐nour” date fruit

Mennouche

Boubekri

Chouicha

et al. 2017

J Food Process Engineering

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The present work aims to improve the quality of Algerian Deglet‐Nour dates using an indirect solar drying technique preceded by hot water pretreatment. The final product quality was evaluated by three simultaneous testing parameters: microbiological degradation, sugar composition and color change. Convective solar drying experiments were firstly performed with a variable mode at an average temperature ranging between 39‐55°C. Four other experiments were conducted in constant mode under regulated temperatures (50°C, 55°C, 60°C and 65°C). The results of drying tests, led towards the choice of the treatment under controlled air temperature of 50°C with air flow of 1.2m/s. Resulting drying time of 8 hours presents the advantage of to discard the night conservation problems by ensuring a continuous drying process. Owing to its low cost and green energy use, this study could offer a practical alternative to the conventional means currently used in industrial applications of postharvest heat treatments of dates. Practical applications Drying of naturally high humid dates and the rehydrated dry dates by direct exposure to the sun, is an old method for valorization the “Deglet‐Nour” dates. Considerable losses occur during this drying process so the food quality can be seriously degraded. For an industrial application with improvement the quality of dried product, the natural sun drying should be replaced by the indirect solar drying means. This article aims to improve the quality of Deglet‐Nour dates using an indirect solar drying technique preceded by adequate water steeping pretreatment. The results of the study will be useful in the sense of ensuring an added value by enhancing the product quality and avoid eventual problems induced by night storing of treated products. The obtained results also could offer a practical alternative to the conventional means currently used in industrial applications for post‐harvest heat treatment of Deglet‐Nour dates.

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Section: Introductionmentioning

confidence: 99%

Solar drying process to obtain high standard “deglet‐nour” date fruit

Mennouche

Boubekri

Chouicha

et al. 2017

J Food Process Engineering

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“…The device (sunshine recorder) for measuring sunshine hours is simple (more details in Section 2), but useful information can be generated from the data and can be employed in many areas of research. This data has been used in several studies, including for air quality (Sanchez-Romero et al, 2016;Li et al, 2016); environmental pollution (Kaiser and Qian, 2002;Statheropoulos et al, 1998); energy (Yaiche et al, 2014); and solar radiation prediction modelling studies (Mulaudzi et al, 2015;Adeyemi et al, 2015;Singh et al, 2011). The sunshine hour of any day is affected by varying atmospheric and sky conditions, so SD can, therefore, indirectly indicate atmospheric turbidity, visibility and sky conditions.…”

Section: Introductionmentioning

confidence: 99%

Is the summer season losing potential for solar energy applications in South Africa?

Singh

Kruger

2017

J. energy South. Afr.

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“…Finally, a third set of data, including a larger number of stations from Tunisia and Algeria measuring only the monthly mean sunshine duration, was used to interpolate this parameter over the whole study area. Data for the Tunisian meteorological stations are public and are provided by the Tunisian National Institute of Meteorology, while data for the Algerian stations were produced by the Algerian National Meteorological Office and are available in the Algerian Solar Atlas produced by the Algerian Renewable Energy Development Center [42]. As shown in Table 2, all data used in this study cover a period longer than 10 years.…”

Section: Study Areamentioning

confidence: 99%