Lighting systems evaluation for indoor living walls

Egea, Gregorio; Pérez-Urrestarazu, Luis; González-Pérez, Julio; Franco-Salas, Antonio; Fernández-Cañero, Rafael

doi:10.1016/j.ufug.2014.04.009

Cited by 19 publications

(14 citation statements)

References 36 publications

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“…As discussed in Torpy et al (2014) targeted indoor lighting could be used to maximise a houseplants CO 2 assimilation potential. Extensive research has been undertaken into various light systems for plant cultivation and development on indoor living walls but not specifically with potted houseplants or concerning CO 2 assimilation (Yeh and Chung 2009;Egea et al 2014). Our findings support the notion that increased light levels maximise plant gas exchange and we suggest future research should investigate the suitability of testing targeted lighting installations in indoor environments.…”

Section: Discussionsupporting

confidence: 58%

Can houseplants improve indoor air quality by removing CO2 and increasing relative humidity?

Gubb

Blanuša

Griffiths

et al. 2018

Air Qual Atmos Health

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High indoor CO 2 concentrations and low relative humidity (RH) create an array of well-documented human health issues. Therefore, assessing houseplants' potential as a low-cost approach to CO 2 removal and increasing RH is important. We investigated how environmental factors such as 'dry' (< 0.20 m 3 of water per m 3 of substrate, m 3 m-3) or 'wet' (> 0.30 m 3 m-3) growing substrates, and indoor light levels ('low' 10 µmol m-2 s-1 , 'high' 50 µmol m-2 s-1 and 'very high' 300 µmol m-2 s-1), influence the plants' net CO 2 assimilation ('A') and water-vapour loss. Seven common houseplant taxa-representing a variety of leaf types and sizes-were studied for their ability to assimilate CO 2 across a range of indoor light levels. Additionally, to assess the plants' potential contribution to RH increase, the plants' evapotranspiration (ET) was measured. At typical 'low' indoor light levels 'A' rates were generally low (< 3.9 mg hr-1). Differences between 'dry' and 'wet' plants at typical indoor light levels were negligible in terms of room-level impact. Light compensation points (i.e. the light level where the CO 2 assimilation equals zero) were in the typical indoor light range (1-50 µmol m-2 s-1) only for two studied Spathiphyllum wallisii cultivars and Hedera helix; these plants would thus provide the best CO 2 removal indoors. Additionally, increasing indoor light levels to 300 µmol m-2 s-1 would, in most species, significantly increase their potential to assimilate CO 2. Species which assimilated the most CO 2 also contributed most to increasing RH.

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Section: Discussionsupporting

confidence: 58%

Can houseplants improve indoor air quality by removing CO2 and increasing relative humidity?

Gubb

Blanuša

Griffiths

et al. 2018

Air Qual Atmos Health

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“…Curiosamente, en S. soleirolii el peso de las raíces fue ligeramente superior en C con respecto a los módulos restantes. Los resultados obtenidos son coherentes con los presentados anteriormente en otro estudio de sistemas de iluminación para jardines verticales en el que se testaron lámparas incandescentes, de halogenuros metálicos y fluorescentes [9]. Con la luminaria A, se han conseguido valores ligeramente superiores a los fluorescentes (que fueron los que propiciaron un mayor desarrollo de las plantas) para S. wallisii, siendo algo menores para las luminarias B y C. Sin embargo, curiosamente, para S. soleirolii los LED han funcionado considerablemente mejor que otras luminarias testadas en dicho estudio.…”

Section: Resultados Y Discusiónunclassified

Evaluación de la iluminación fotosintética mediante LEDs en Jardinería Vertical

Kaltsidi¹,

Salas²,

Cañero³

et al. 2019

Congreso Ibérico De Agroingeniería

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Resumen: Los Jardines Verticales son un sistema de enverdecimiento de paredes y muros tanto en el exterior como en el interior de edificios. En este último caso se requiere de un sistema de iluminación artificial para asegurar un desarrollo correcto de la vegetación. El objetivo de este trabajo es analizar el efecto de tres luminarias LED comerciales en la iluminación de jardines verticales interiores en términos de calidad visual y correcto desarrollo de las plantas. Las luminarias testadas se diferencian en la potencia y tipo de luz. Los resultados obtenidos muestran que las tres luminarias son aptas en el desarrollo de las plantas, pero la luminaria de luz rojo/azul (tipo C) presentó en general un menor crecimiento en las plantas, menos cobertura del jardín y daba una apariencia poco natural a las plantas debido a la mezcla de rojos y azules. En relación al consumo de agua, fue un 30% superior en el caso de la luminaria de luz blanca de mayor potencia (tipo A) en referencia a las otras dos. Palabras clave: jardines verticales interiores, calidad visual, plantas ornamentales

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“…The drip trays could be put under the container to collect the water that flows from the growing container's base. [29] The direct irrigation system reaches the water directly from its primary source. This water flows directly to the sewage with gravity downwards and is not recycled.…”

Section: -Gfs Drainage and Irrigationmentioning

confidence: 99%

The Vertical Greening Envelope and its Effect on Energy Consumption Efficiency in a Residential Building, Case Study: Twin House, 6th of October City

El-Zoklah

Refaat²

2022

JES. Journal of Engineering Sciences

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Egypt has suffered from Energy problems, especially in the last 10 years, as it transformed from exporter to importer of oil and gas. [1]. The residential buildings consume over 40% of electricity. Moreover, most of this consumption is for using HVAC systems to reach the thermal comfort inside spaces, as it used non-environmental material, which led to maximizing heat gain. The study aims to measure the vertical greening envelope and its variables such as LAI and air gap effect on energy consumption. The research methodology includes reviewing the literature and methods of Vertical greening systems (VGS) and their types, plantations… Etc. and its effect on the buildings' external envelope to achieve maximum energy efficiency. A practical study was carried out by simulating one direction Town House on 6th October, Egypt, every 30° starting from the north using a design-builder simulation program. The research compared the energy consumption of the building's initial case with 12cm concrete bricks and VGS installation with a 60cm airgap. The VGS reduced energy consumption by 19.6:29% in the different installation directions, and 240° SW recorded the highest saving in the case of LAI was 2.0 and to measure the effect of LAI beside the installation orientation the LAI 2.0 compared to LAI 4.0 in 240° SW and the saving has increased to 32.3%. In the case of no airgap, the saving was 29.3% which means that the LAI and air gap distances affected the performance of VGS as the installation direction did.

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Lighting systems evaluation for indoor living walls

Cited by 19 publications

References 36 publications

Can houseplants improve indoor air quality by removing CO2 and increasing relative humidity?

Can houseplants improve indoor air quality by removing CO2 and increasing relative humidity?

Evaluación de la iluminación fotosintética mediante LEDs en Jardinería Vertical

The Vertical Greening Envelope and its Effect on Energy Consumption Efficiency in a Residential Building, Case Study: Twin House, 6th of October City

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