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Research Article

Cooling energy saving associated with exterior greenery systems for three US Department of Energy (DOE) standard reference buildings

Shaojie Yuan, Donghyun Rim( )
Architectural Engineering Department, Pennsylvania State University, University Park, PA 16802, USA
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Abstract

Exterior greenery systems such as green walls and green roof can provide energy saving and environmental benefits. Several previous studies examined thermal impacts of green roof/walls on a test envelope or simplified buildings in local climates. However, few studies examined the effects of exterior greenery systems considering building types, air conditioning operating conditions, and wall orientations in varied climates. The objective of this study is to investigate cooling energy savings associated with exterior greenery systems for the US Department of Energy (DOE) standard reference buildings, depending on building type, wall orientation, and local climate. Hourly energy consumption was examined for three types of reference buildings: (1) medium office, (2) hospital, and (3) primary school. For the three reference buildings, hourly solar radiation and latent heat transfer rates were calculated for four representative local climates (i.e., hot-dry, hot-humid, cold-humid, and warm-dry). Results show that latent heat transfer due to plant transpiration can dominate heat transfer through the exterior greenery systems. Among the four climates studied herein, heat removal due to evaporation by green walls and roof over the summer months (June to August) is the largest (up to 680 kWh/m2) in Phoenix, while it is in similar range (300–350 kWh/m2) for green walls and roof in other cities. Building type also has notable impacts on the energy performance of the exterior greenery system. Primary school achieves the most significant cooling energy saving in all climates because of high envelope heat gains compared to medium office and hospital. For the primary school in Phoenix, annual cooling energy saving can be maximized up to 27,000 kWh/y with green walls and up to 69,000 kWh/y with a green roof. Latent heat transfer due to evaporation is similar (< 6%) between south and west green walls, implying that utilizing a west green wall could be a good alternative or complement to using a south green wall for cooling energy saving.

Keywords

commercial buildingsEnergyPlusgreen roofgreen wallreference buildings

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References

 
RG Allen, LS Pereira, D Raes, M Smith (1998). Crop evapotranspiration— Guidelines for computing crop water requirements—FAO Irrigation and drainage paper 56. FAO, Rome, 300(9), D05109.
Google Scholar
 
ASHRAE (2004). ANSI/ASHRAE/IESNA Standard 90.1-2004. Energy Standard for Buildings Except Low-rise Residential Buildings. Atlanta, GA, USA: American Society of Heating, Refrigerating and Air-Conditioning Engineers.
 
CA Balaras (1996). The role of thermal mass on the cooling load of buildings. An overview of computational methods. Energy and Buildings, 24: 1–10.
Crossref Google Scholar
 
RD Berghage, D Beattie, AR Jarrett, C Thuring, F Razaei, TP O’Connor (2009). Green roofs for stormwater runoff control. Available at http://nepis.epa.gov/exe/zu[ir;/cgi?dockey=p1003704.txt2009.
 
RS Briggs, RG Lucas, ZT Taylor (2003). Climate classification for building energy codes and standards: Part 2—Zone definitions, maps, and comparisons. ASHRAE Transactions, 109(1): 122–130.
Google Scholar
 
RWF Cameron, JE Taylor, MR Emmett (2014). What’s ‘cool’ in the world of green façades? How plant choice influences the cooling properties of green walls. Building and Environment, 73: 198–207.
Crossref Google Scholar
 
JS Carlos (2015). Simulation assessment of living wall thermal performance in winter in the climate of Portugal. Building Simulation, 8: 3–11.
Crossref Google Scholar
 
J Coma, G Pérez, C Solé, A Castell, LF Cabeza (2014). New green facades as passive systems for energy savings on buildings. Energy Procedia, 57: 1851–1859.
Crossref Google Scholar
 
M Deru, K Field, D Studer, K Benne, B Griffith, et al. (2011). US Department of Energy commercial reference building models of the national building stock. Technical Report NREL/TP-5500-46861. Golden, CO, USA: National Renewable Energy Laboratory.
Crossref
 
R Djedjig, E Bozonnet, R Belarbi (2015). Analysis of thermal effects of vegetated envelopes: Integration of a validated model in a building energy simulation program. Energy and Buildings, 86: 93–103.
Crossref Google Scholar
 
H Feng, K Hewage (2014). Energy saving performance of green vegetation on LEED certified buildings. Energy and Buildings, 75: 281–289.
Crossref Google Scholar
 
KL Getter, DB Rowe (2006). The role of extensive green roofs in sustainable development. HortScience, 41: 1276–1285.
Crossref Google Scholar
 
MT Hoelscher, T Nehls, B Jänicke, G Wessolek (2016). Quantifying cooling effects of facade greening: Shading, transpiration and insulation. Energy and Buildings, 114: 283–290.
Crossref Google Scholar
 
CY Jim (2014). Heat-sink effect and indoor warming imposed by tropical extensive green roof. Ecological Engineering, 62: 1–12.
Crossref Google Scholar
 
KJ Kontoleon, EA Eumorfopoulou (2010). The effect of the orientation and proportion of a plant-covered wall layer on the thermal performance of a building zone. Building and Environment, 45: 1287–1303.
Crossref Google Scholar
 
S Lehmann (2014). Low carbon districts: Mitigating the urban heat island with green roof infrastructure. City, Culture and Society, 5: 1–8.
Crossref Google Scholar
 
YJ Lin, HT Lin (2011). Thermal performance of different planting substrates and irrigation frequencies in extensive tropical rooftop greeneries. Building and Environment, 46: 345–355.
Crossref Google Scholar
 
L Malys, M Musy, C Inard (2014). A hydrothermal model to assess the impact of green walls on urban microclimate and building energy consumption. Building and Environment, 73: 187–197.
Crossref Google Scholar
 
M Ottelé, K Perini, ALA Fraaij, EM Haas, R Raiteri (2011). Comparative life cycle analysis for green façades and living wall systems. Energy and Buildings, 43: 3419–3429.
Crossref Google Scholar
 
G Pérez, L Rincón, A Vila, JM González, LF Cabeza (2011). Green vertical systems for buildings as passive systems for energy savings. Applied Energy, 88: 4854–4859.
Crossref Google Scholar
 
K Perini, P Rosasco (2013). Cost-benefit analysis for green façades and living wall systems. Building and Environment, 70: 110–121.
Crossref Google Scholar
 
D Rim, S Schiavon, WW Nazaroff (2015). Energy and cost associated with ventilating office buildings in a tropical climate. PLoS ONE, 10(3): e0122310.
Crossref Google Scholar
 
DJ Sailor (2008). A green roof model for building energy simulation programs. Energy and Buildings, 40: 1466–1478.
Crossref Google Scholar
 
I Susorova, M Angulo, P Bahrami, B Stephens (2013). A model of vegetated exterior facades for evaluation of wall thermal performance. Building and Environment, 67: 1–13.
Crossref Google Scholar
 
EIA (2012). Use of energy—In commercial buildings. U.S. Energy Information Administration, Available at http://www.eia.gov/ Energyexplained/?page=us_energy_commercial. Accessed 23 Feb 2017.
 
K Veisten, Y Smyrnova, R Klæboe, M Hornikx, M Mosslemi, J Kang (2012). Valuation of green walls and green roofs as soundscape measures: Including monetised amenity values together with noise-attenuation values in a cost-benefit analysis of a green wall affecting courtyards. International Journal of Environmental Research and Public Health, 9: 3770–3788.
Crossref Google Scholar
 
NH Wong, DKW Cheong, H Yan, J Soh, CL Ong, A Sia (2003). The effects of rooftop garden on energy consumption of a commercial building in Singapore. Energy and Buildings, 35: 353–364.
Crossref Google Scholar
 
NH Wong, AYK Tan, Y Chen, K Sekar, PY Tan, et al. (2010). Thermal evaluation of vertical greenery systems for building walls. Building and Environment, 45: 663–672.
Crossref Google Scholar
 
I Wong, AN Baldwin (2016). Investigating the potential of applying vertical green walls to high-rise residential buildings for energy-saving in sub-tropical region. Building and Environment, 97: 34–39.
Crossref Google Scholar
 
N Yaghoobian, J Srebric (2015). Influence of plant coverage on the total green roof energy balance and building energy consumption. Energy and Buildings, 103: 1–13.
Crossref Google Scholar
Building Simulation
Volume 11 Issue 4,
August 2018
Pages 625-631
DOI: 10.1007/s12273-018-0427-y
Cite this article:
Yuan S, Rim D. Cooling energy saving associated with exterior greenery systems for three US Department of Energy (DOE) standard reference buildings. Building Simulation, 2018, 11(4): 625-631. https://doi.org/10.1007/s12273-018-0427-y

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Received: 03 August 2017
Revised: 06 December 2017
Accepted: 20 December 2017
Published: 04 January 2018
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018
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