Solar Radiation Transmittance Characteristics of Textile Woven Fabrics suitable for Greenhouse covering Materials

Ray, Amal; Ghosh, Subrata; Bhowmick, Niranjan

doi:10.1007/s40034-021-00223-3

Cited by 5 publications

(2 citation statements)

References 35 publications

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“…Properties like resistance to solar radiation, UV rays, air, water, oxygen, micro-organisms, and various climatic conditions, biodegradability, low cost/performance ratio, and long lifetime are expected from textile materials to be used in greenhouses [34][35][36]. Therefore, UV resistance/weatherability test was applied to sample sensors namely G2S, W1S, B2C, and W1C.…”

Section: Uv Resistance/weatherability (Against Uv and Raining) Test R...mentioning

confidence: 99%

Flexible humidity sensor for smart agricultural applications

Tekcin,

Tuzer Hamzaoglu,

Kursun

2023

Flex. Print. Electron.

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The increase in food production due to the need for food brought by the increasing world population from year to year necessitates production at high quality and in much larger quantities in every season. In order to grow fruit and vegetables efficiently, sensors that measure ambient temperature and humidity are needed in greenhouses. Two different flexible and resistant textile-based humidity sensors that can measure the humidity at higher levels (80%, 90%, and 100% RH) were designed and printed directly on the four different greenhouse fabrics using silver and carbon conductive inks. Fabric thickness, weight, tensile, tear strength, elongation, abrasion, air permeability, water permeability tests for evaluating various physical and mechanical properties of specimen fabrics to be used for the sensor were carried out. In addition, depending on the humidity value in the environment, the sensor performance was tested based on sensor electrical resistance measurements with respect to repeated bending/cyclic tests, rubbing, UV exposure/ weatherability (against UV and raining) tests. Moreover, some important features of the sensors such as hysteresis, repeatability, response time have been also examined. Statistical analyses showed that the sensor designs and type of conductive inks had significant effects on the performance of the humidity sensors and the best sensor performance was obtained with the polypropylene coated fabric using design II and silver based conductive ink. The fabricated textile based flexible humidity sensors detect the change in relative humidity levels from 80%RH to 100%RH accurately and achieve good durability, and repeatability even after prolonged UV exposure and raining. Thus, the developed textile-based flexible humidity sensor might be useful for future smart agricultural applications.

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Section: Uv Resistance/weatherability (Against Uv and Raining) Test R...mentioning

confidence: 99%

Flexible humidity sensor for smart agricultural applications

Tekcin,

Tuzer Hamzaoglu,

Kursun

2023

Flex. Print. Electron.

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“…The mechanical properties of some materials have also been shown to show almost no degradation. Table 1 summarizes the infrared thermal insulation and visible light transmission properties of these composite film materials [62,63] (Belhachemi, Maatoug, Canela-Garayoa, & Products, 2022; Ray, Ghosh, & Bhowmick, 2021). The IR efficiency in the table was calculate by Equation (2).…”

Section: Summary Of Properties Of Infrared Thermal Insulation Materialsmentioning

confidence: 99%

Micro/nano particles reinforced polymer composites as greenhouse films for heat retention purposes

Yang

Wang

2022

Polymer Composites

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The aim and objective of this review is to intensively summarize composite film materials that can achieve thermal radiation insulation without affecting visible light transmittance, in order to reduce the heat loss in greenhouses and thus save energy. Eight kinds of composite films, which could be used for radiation insulation, were finally determined and intensively reviewed by searching the key words including insulation film, insulation agent, and infrared insulation. These materials can be divided into two categories: silica/poly and zinc oxide/poly composites. The radiation thermal insulation property and light transmission property of these materials were experimentally tested by spectrometry. The key finding of this article includes that phonon resonance and Anderson localization could be used to block thermal infrared radiation by generalizing material properties. The conclusion of this review is that those materials have at least a 10% increase in infrared thermal radiation blocking, but only a small decrease in visible light transmittance.

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