Abstract

In the present work the variation over space and time of the amountof the photosynthetic photons flux density, inside a greenhouse entirelycovered with photovoltaic panels was investigated experimentallyand numerically. The greenhouse had 10.00 m spam width, 50.00 mlength, 3.00 m height of the gutter, 6.60 m height of the edge. Datawere acquired in the period 18th April-8th June 2014 by one sensor outsideand one inside the experimental greenhouse built in SouthernItaly. Numeric simulations were performed by means of commercialsoftware Autodesk® Ecotect®. For the investigated greenhouse model,the exposed percentage - the ratio of the calculated insolation at a particularpoint within an enclosure to the simultaneous unobstructedoutdoor insolation under the same sky conditions - was calculated overa three dimensional grid formed by 50¥10¥15 cells each with1.00¥1.00¥0.20 m size. The long-term analysis demonstrated a goodcapability of the numerical model to predict the shading effect insidea photovoltaic greenhouse combining the daily calculated exposed percentagewith measurements of solar radiation. The model was ablealso to predict the qualitative behaviour of the variation of photonsflux during the day even if the measured values showed a higher fluctuationof values.

Autore Pugliese

• Serio Francesco

Tutti gli autori

• S. Castellano; P. Santamaria; F. Serio

Titolo volume/Rivista

Journal of agricultural engineering

Anno di pubblicazione

2016

ISSN

1974-7071

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

Non Disponibile