Selection of suitable plant species for energy efficient Vertical Greenery Systems (VGS)

Dahanayake, Kalani C.; Chow, Cheuk Lun; Hou, Guolong

doi:10.1016/j.egypro.2017.12.185

Cited by 35 publications

(23 citation statements)

References 10 publications

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“…Several other parameters have a significant impact on the thermal capacity of the green wall [ 217 ]. Research results show that the LAI increase from 1 to 5 can reduce the surface temperature by 12 °C on a hot summer day, and reduce the annual cost of indoor air conditioning by 1.4% [ 218 ].…”

Section: Resultsmentioning

confidence: 99%

Statistical Review of Quality Parameters of Blue-Green Infrastructure Elements Important in Mitigating the Effect of the Urban Heat Island in the Temperate Climate (C) Zone

Antoszewski

Świerk

Krzyżaniak

2020

IJERPH

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Urban Heat Island (UHI) effect relates to the occurrence of a positive heat balance, compared to suburban and extra-urban areas in a high degree of urbanized cities. It is necessary to develop effective UHI prevention and mitigation strategies, one of which is blue-green infrastructure (BGI). Most research work comparing impact of BGI parameters on UHI mitigation is based on data measured in different climate zones. This makes the implication of nature-based solutions difficult in cities with different climate zones due to the differences in the vegetation time of plants. The aim of our research was to select the most statistically significant quality parameters of BGI elements in terms of preventing UHI. The normative four-step data delimitation procedure in systematic reviews related to UHI literature was used, and temperate climate (C) zone was determined as the UHI crisis area. As a result of delimitation, 173 publications qualified for literature review were obtained (488 rejected). We prepared a detailed literature data analysis and the CVA model—a canonical variation of Fisher’s linear discriminant analysis (LDA). Our research has indicated that the BGI object parameters are essential for UHI mitigation, which are the following: area of water objects and green areas, street greenery leaf size (LAI), green roofs hydration degree, and green walls location. Data obtained from the statistical analysis will be used to create the dynamic BGI modeling algorithm, which is the main goal of the series of articles in the future.

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Section: Resultsmentioning

confidence: 99%

Statistical Review of Quality Parameters of Blue-Green Infrastructure Elements Important in Mitigating the Effect of the Urban Heat Island in the Temperate Climate (C) Zone

Antoszewski

Świerk

Krzyżaniak

2020

IJERPH

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“…Nonetheless, it is important to mention that significant facade surface temperature reduction is realizable irrespective of urban density. In terms of plant selection and configuration, high foliage density and substrate moisture content (depending on prevailing climate) were found to be the most crucial factors in obtaining the optimum thermal effect from plants, while other factors such as radiative properties and plant traits have negligible impact on the urban heat mitigation (Dahanayake et al 2017;Hoelscher et al 2016).…”

Section: Performance Of Urban Greenery In Mitigating Urban Heat Islanmentioning

confidence: 99%

Progress in Urban Greenery Mitigation Science – Assessment Methodologies Advanced Technologies and Impact on Cities

Santamouris

Ban-Weiss

Osmond

et al. 2018

Journal of Civil Engineering and Management

140

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Urban greenery is a natural solution to cool cities and provide comfort, clean air and significant social, health and economic benefits. This paper aims to present the latest progress on the field of greenery urban mitigation techniques including aspects related to the theoretical and experimental assessment of the greenery cooling potential, the impact on urban vegetation on energy, health and comfort and the acquired knowledge on the best integration of the various types of greenery in the urban frame. Also to present the recent knowledge on the impact of climate change on the cooling performance of urban vegetation and investigate and analyse possible technological solutions to face the impact of high ambient temperatures.

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“…In parallel, research into the potential of fast-growing tree species for industrial and energy production uses is growing very rapidly [4,5]. Specific criteria for species and clone selection based on biomass production, water requirements, and environmental impact [6], and also on their potential for boosting social and economic development in rural areas, reducing polluting emissions and using degraded or unfertile soil [4,7,8], have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Effect of autohydrolysis on hemicellulose extraction and pyrolytic hydrogen production from Eucalyptus urograndis

Loaiza

Palma

Díaz

et al. 2020

Biomass Conv. Bioref.

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Ensuring environmental and social-economic sustainability in the use of materials from lignocellulosic biomass requires their fractionation and valorization of their main components. In this work, we used Eucalyptus urograndis wood to obtain chemicals and energy. The raw material was characterized in chemical terms and then subjected to autohydrolysis under variable operating conditions to optimize the extraction of hemicellulose derivatives relative to cellulose. The kinetics of the pyrolysis process was modeled in terms of activation energy and hydrogen production. Using temperatures in the range of 180-190°C and treatment times in the range of 15-30 min allowed more than 74.5% of all hemicellulosic components in the raw material to be selectively extracted into the liquid post-hydrolysis phase, more than 90% of all glucan to remain in the solid phase and up to 27.8% of lignin to be removed. The thermal behavior of solid fraction was examined by thermogravimetric analysis, using variable heating rates under a nitrogen atmosphere, and the activation energy can be estimated by using the Flynn-Wall-Ozawa method. Based on the results, the pyrolysis of E. urograndis can be modeled as a first-order reaction. The activation energy (E a) at a fractional conversion α between 0.3 and 0.7 was 183 to 199 KJ mol −1 for the raw material, whereas that for the solid residue from autohydrolysis ranged from 179 to 186 kJ mol −1 at same fractional conversion when operational temperature in autohydrolysis was upper 185°C. Based on the results, using temperatures above 180°C and times of 15 min or longer [i.e., operating at the (0,0) experimental point for the autohydrolysis process] in combination with degrees of conversion from 0.3 to 0.8 reduced the activation energy of the pyrolysis process in relation to the raw material by up to 12% and removed hemicellulose by more 74.5% from it. In parallel, the comparative analysis of the E a values and the composition of the pyrolysis gas obtained showed a negative relationship between E a and the amount of hydrogen produced.

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Selection of suitable plant species for energy efficient Vertical Greenery Systems (VGS)

Cited by 35 publications

References 10 publications

Statistical Review of Quality Parameters of Blue-Green Infrastructure Elements Important in Mitigating the Effect of the Urban Heat Island in the Temperate Climate (C) Zone

Statistical Review of Quality Parameters of Blue-Green Infrastructure Elements Important in Mitigating the Effect of the Urban Heat Island in the Temperate Climate (C) Zone

Progress in Urban Greenery Mitigation Science – Assessment Methodologies Advanced Technologies and Impact on Cities

Effect of autohydrolysis on hemicellulose extraction and pyrolytic hydrogen production from Eucalyptus urograndis

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