Emergy based evaluation of environmental performances of Living Wall and Grass Wall systems

Pulselli, Riccardo Maria; Pulselli, Federico Maria; Mazzali, Ugo; Peron, Fabio; Bastianoni, Simone

doi:10.1016/j.enbuild.2014.01.034

Cited by 60 publications

(40 citation statements)

References 28 publications

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“…Results from EME [1] provides an additional information. Main inputs to processes were classified into renewable resources, human work, chemicals, water use, energy use, transport, structural elements (Figure 4).…”

Section: Results and Discussion: Emergy Evaluationmentioning

confidence: 99%

“…As a case study, a VGS was hypothesized installed on a 98m 2 south-oriented façade (14m length; 7m height) of a 1000m 3 building ( Figure 1). Based on a simulation model [2] applied to this case study [1], cooling energy saving due to the VGS was found to be around 15% of the total electricity use for cooling (almost 282 of 1880 kWh yr -1 ). …”

Section: Introductionmentioning

confidence: 99%

“…Indoor effects in terms of energy saving were estimated due to the shading effect, the ventilated air cavity behind the vegetated layer and the evapotranspiration of plants, conditioned to climate and orientation [1][2][3][4][5][6][7][8][9]. Besides effects on indoor climate, the contribution to cool the outdoor ambient temperature in building canyons was also found promising [3,7,10].…”

Section: Introductionmentioning

confidence: 99%

“…Plants are embedded on a vertical layer, fed by an automatic watering and nurturing system [1]. Among other types of VGS, systems that develop hydroponic techniques exploit a textile layer for supporting plants, directly rooted on it.…”

Section: Introductionmentioning

confidence: 99%

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A comprehensive lifecycle evaluation of vertical greenery systems based on systemic indicators

Pulselli

Saladini

Neri

et al. 2014

The Sustainable City IX

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Vertical Greenery Systems (VGS) are relatively light structures anchored on building facades with plants embedded on felt layers and nurtured by a hydroponic watering system. These systems can have positive effects on environmental performance at both the building scale (i.e. energy saving for cooling) and the urban scale (i.e. urban heat island effect mitigation). A research project, namely GREENED, has been developed for detecting the environmental profile of VGS based on lifecycle processes. Systemic indicators, such as Carbon Footprint (given in kg CO2-eq) and eMergy (given in solar emergy Joules -seJ), can provide information on environmental impacts or costs, due to the manufacturing and sustenance of VGS, and benefits, in terms of energy saving or other ecosystems services (e.g. CO 2 sequestration by plants). The cost to benefit ratio allows for a comprehensive evaluation of VGS sustainability. Outcomes from a case study (i.e. 98m facade on a 1000m building) reveal that, in given conditions 2 3 (i.e. massive wall envelope, south-oriented facade, open air-cavity, integrated water harvesting system, local recourse use), environmental costs can be compensated by benefits within 25 years. This allowed for a deeper understanding of lifecycle processes and the conscious use of VGS in an urban context.

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Section: Results and Discussion: Emergy Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A comprehensive lifecycle evaluation of vertical greenery systems based on systemic indicators

Pulselli

Saladini

Neri

et al. 2014

The Sustainable City IX

Self Cite

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“…In particular, VGS International Forum on Energy, Environment Science and Materials (IFEESM 2015) have a stronger effect on urban temperature and energy [27], which may be changed by the adaptive properties and the arrangement of plants [28].…”

Section: Microclimatic Layer Of Vertical Greenerymentioning

confidence: 99%

Study Advances on Vertical Greenery System

Hou¹,

Xue

2015

Proceedings of the 2015 International Forum on Energy, Environment Science and Materials

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Abstract. For high-density urban environments, vertical greenery is often employed as one of feasible alternatives of environmental improvement. Vertical greenery systems (VGS) are being served as an interesting measure to improve the quality of life and urban environments, but only a few studies have examined overall performance of VGS. Vertical greenery has potential benefits, including reducing the surface temperature of buildings facades and diurnal temperature fluctuation, alleviating Urban Heat Island and noise pollution, reducing g heat flux to the building and energy cost, transforming the urban landscape and enhancing visual effect and so on. This paper provides a literature review for VGS studying, including VGS classification and their effects on acoustic insulation, thermal, air flow and temperature, energy performance, CO 2 sequestration and microclimatic layer.

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References

2018

Building Performance Analysis

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Emergy based evaluation of environmental performances of Living Wall and Grass Wall systems

Cited by 60 publications

References 28 publications

A comprehensive lifecycle evaluation of vertical greenery systems based on systemic indicators

A comprehensive lifecycle evaluation of vertical greenery systems based on systemic indicators

Study Advances on Vertical Greenery System

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