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Clean Technologies, Volume 5, Issue 4

December 2023 - 12 articles

Cover Story: The GHG emissions of heated greenhouses are significant in France: around 2.2 kg CO₂/kg of tomatoes compared to 0.6 kg CO₂/kg cultivated in unheated greenhouses in Spain; 80% of greenhouses have natural gas as a primary energy resource, and average overall energy (electricity + fuel) consumption is as high as 341 kWh/m²/year. Within the current climate change and economic challenges, the multi-disciplinary project SERRES+, financed by regional councils of Brittany and Pays de la Loire, aims at redesigning the heated greenhouse production system, optimizing ventilation and heating strategies including storage and without using fossil fuels, simulating crop growth, and taking into account the properties of materials and the architectural envelope. View this paper

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Article

1 Citations

2,735 Views

17 Pages

Quantitating Wastewater Characteristic Parameters Using Neural Network Regression Modeling on Spectral Reflectance

Dhan Lord B. Fortela,
Armani Travis,
Ashley P. Mikolajczyk,
Wayne Sharp,
Emmanuel Revellame,
William Holmes,
Rafael Hernandez and
Mark E. Zappi

Clean Technol.2023, 5(4), 1186-1202;https://doi.org/10.3390/cleantechnol5040059

27 September 2023

Wastewater (WW) analysis is a critical step in various operations, such as the control of a WW treatment facility, and speeding up the analysis of WW quality can significantly improve such operations. This work demonstrates the capability of neural n...

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3,366 Views

27 Pages

Heat Recovery Potential in a Semi-Closed Greenhouse for Tomato Cultivation

Abdelouhab Labihi,
Paul Byrne,
Amina Meslem,
Florence Collet and
Sylvie Prétot

Clean Technol.2023, 5(4), 1159-1185;https://doi.org/10.3390/cleantechnol5040058

22 September 2023

This study first presents the development and the experimental validation of a numerical model of a semi-closed greenhouse using a dynamic thermal simulation. The second objective was to identify the influential parameters on the indoor climate and t...

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