TY - JOUR
T1 - BEYOND GREEN FAÇADES: ACTIVE AIR-COOLING VERTICAL GARDENS
T2 - active air-cooling vertical gardens
AU - Davis, Michael Maks
AU - Vallejo Espinosa, Andrea Lorena
AU - Ramirez, Francisco Rene
N1 - Publisher Copyright:
© 2019, Emerald Publishing Limited.
PY - 2019/7/3
Y1 - 2019/7/3
N2 - Purpose: Vertical gardens offer multiple benefits in urban environments, including passive cooling services. Previous research explored the use of “active vertical gardens” as potential evaporative air-cooling units by developing a mathematical model based on the FAO-56 Penman Monteith equation. Further research showed that active vertical gardens function best by creating an airflow in the cavity behind the garden such that air is cooled by flowing over the water-saturated garden substrate. The purpose of this paper is to improve the quantification of active vertical garden performance. Design/methodology/approach: A building-incorporated vertical garden was built in Quito, Ecuador, with an air inlet at the top of the garden, an air cavity behind the garden and where air was expelled from the base. Measurements were made of air temperature, humidity and velocity at the air inlet and outlet. Findings: The active vertical garden cooled the air by an average of 8.1 °C with an average cooling capacity of 682.8 W. Including the effects of pre-cooling at the garden inlet, the garden cooled the air by an average of 14.3 °C with an average cooling capacity of 1,203.2 W. Originality/value: The results are promising and support the potential for active vertical gardens to be incorporated into building services and climate control.
AB - Purpose: Vertical gardens offer multiple benefits in urban environments, including passive cooling services. Previous research explored the use of “active vertical gardens” as potential evaporative air-cooling units by developing a mathematical model based on the FAO-56 Penman Monteith equation. Further research showed that active vertical gardens function best by creating an airflow in the cavity behind the garden such that air is cooled by flowing over the water-saturated garden substrate. The purpose of this paper is to improve the quantification of active vertical garden performance. Design/methodology/approach: A building-incorporated vertical garden was built in Quito, Ecuador, with an air inlet at the top of the garden, an air cavity behind the garden and where air was expelled from the base. Measurements were made of air temperature, humidity and velocity at the air inlet and outlet. Findings: The active vertical garden cooled the air by an average of 8.1 °C with an average cooling capacity of 682.8 W. Including the effects of pre-cooling at the garden inlet, the garden cooled the air by an average of 14.3 °C with an average cooling capacity of 1,203.2 W. Originality/value: The results are promising and support the potential for active vertical gardens to be incorporated into building services and climate control.
KW - Air-conditioning
KW - Building façades
KW - Evaporative cooling
KW - Green wall
KW - Sustainable energy
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85063947937&origin=resultslist&sort=plf-f&src=s&st1=davis&st2=michael&nlo=1&nlr=20&nls=count-f&sid=35bf0b69174fe08173f4f8fe82cb7c84&sot=anl&sdt=aut&sl=40&s=AU-ID%28%22Davis%2c+Michael+J.M.%22+56978514900%29&relpos=0&citeCnt=2&searchTerm=
U2 - 10.1108/SASBE-05-2018-0026
DO - 10.1108/SASBE-05-2018-0026
M3 - Article
AN - SCOPUS:85063947937
SN - 2046-6099
VL - 8
SP - 243
EP - 252
JO - Smart and Sustainable Built Environment
JF - Smart and Sustainable Built Environment
IS - 3
ER -
