Meteorological mapping in a greenhouse with different structures and systems

• Grant number: 13/11953-9
• Support Opportunities: Regular Research Grants
• Start date: September 01, 2013
• End date: August 31, 2015
• Field of knowledge: Agronomical Sciences - Agricultural Engineering - Rural Buildings and Ambience
• Principal Investigator: Paulo Ademar Martins Leal
• Grantee: Paulo Ademar Martins Leal
• Host Institution: Faculdade de Engenharia Agrícola (FEAGRI). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated researchers: Antonio Bliska Junior ; Sylvio Luis Honorio

Abstract

Brazil has average climatic characteristics of a tropical country, with high temperatures and rainy summer. The excessive rains and high temperatures damage plants and create favorable conditions for the emergence of diseases. The greenhouse keeps plants from meteorological agents and allows control of optimal climatic conditions for crop production, enabling cultivation in unfavorable conditions and achieving good productivity during the offseason. The structure and systems are applied to greenhouses and influence directly in temperature and relative humidity of the indoor environment. The behavior of these variables isn't distributed on a homogeneous way and gradients of temperature and relative humidity are found along the height and length of the greenhouse. The lack of information about weather elements behavior in each structure can influence the culture that will be installed, the building project and, hence, the investment required to purchase the structure. The project goal is to characterize different configurations of the greenhouse, from the simplest only with natural ventilation until the most sophisticated with application of systems such as shading, mechanical ventilation and evaporative cooling, with sensors installed at different points of the internal environment, in order to identify the thermal mapping for each configuration and the temperature reduction that each technological level provides. These answers will help on understanding the thermal behavior in the internal environment of greenhouses, essential for the development of construction greenhouses projects and for the appropriate indication of cultivation for each system. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ZORZETO CESAR, THAIS QUEIROZ; MARTINS LEAL, PAULO ADEMAR; BRANQUINHO, OMAR CARVALHO; MOURA MIRANDA, FELIPE ANTONIO. Wireless sensor network to identify the reduction of meteorological gradients in greenhouse in subtropical conditions. JOURNAL OF AGRICULTURAL ENGINEERING, v. 52, n. 1, 2021. (13/11953-9)

ZORZETO, T. Q.; LEAL, P. A. M.; TIJSKENS, P. Wireless sensor network to map the meteorological variability in a greenhouse with evaporative cooling. V INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF MODELLING AS AN INNOVATIVE TECHNOLOGY IN THE HORTICULTURAL SUPPLY CHAIN - MODEL-IT 2015, v. 1154, p. 8-pg., 2017-01-01. (13/11953-9)