Preliminary heat transfer analysis for a large extensive green roof

Mallory N. Squier, J. B. Ahmad, Zhi Cui, Cliff Ian Davidson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Extensive green roofs provide many ecosystem services lacking in the urban environment and are a widely implemented green infrastructure solution for urban stormwater. Yet few studies consider the performance of large green roofs after installation. This study presents initial data covering a few days in fall 2013 collected at a large exterior green roof (0.56 ha) in Syracuse, New York. Temperature sensors were installed throughout the layers of the roof during construction. Daily temperature follows an approximate sine curve with amplitude decreasing as a function of depth into the roof. Analysis of temperature within the roof layers indicates lag times of 3 to 4 h relative to air temperature, illustrating slow heat transfer through the layers. Initial observations of growth medium moisture conditions show changing thermal properties as moisture content changes. Future work will consider heat transfer in all seasons and the influence of building HVAC system data on the roof temperature profile.

Original languageEnglish (US)
Title of host publicationICSI 2014: Creating Infrastructure for a Sustainable World - Proceedings of the 2014 International Conference on Sustainable Infrastructure
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1077-1085
Number of pages9
ISBN (Print)9780784478745
DOIs
StatePublished - 2014
Event2014 International Conference on Sustainable Infrastructure: Creating Infrastructure for a Sustainable World, ICSI 2014 - Long Beach, United States
Duration: Nov 6 2014Nov 8 2014

Other

Other2014 International Conference on Sustainable Infrastructure: Creating Infrastructure for a Sustainable World, ICSI 2014
CountryUnited States
CityLong Beach
Period11/6/1411/8/14

Fingerprint

Roofs
Heat transfer
Moisture
Temperature
Temperature sensors
Ecosystems
Thermodynamic properties
Air

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Civil and Structural Engineering
  • Management of Technology and Innovation
  • Safety, Risk, Reliability and Quality

Cite this

Squier, M. N., Ahmad, J. B., Cui, Z., & Davidson, C. I. (2014). Preliminary heat transfer analysis for a large extensive green roof. In ICSI 2014: Creating Infrastructure for a Sustainable World - Proceedings of the 2014 International Conference on Sustainable Infrastructure (pp. 1077-1085). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784478745.102

Preliminary heat transfer analysis for a large extensive green roof. / Squier, Mallory N.; Ahmad, J. B.; Cui, Zhi; Davidson, Cliff Ian.

ICSI 2014: Creating Infrastructure for a Sustainable World - Proceedings of the 2014 International Conference on Sustainable Infrastructure. American Society of Civil Engineers (ASCE), 2014. p. 1077-1085.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Squier, MN, Ahmad, JB, Cui, Z & Davidson, CI 2014, Preliminary heat transfer analysis for a large extensive green roof. in ICSI 2014: Creating Infrastructure for a Sustainable World - Proceedings of the 2014 International Conference on Sustainable Infrastructure. American Society of Civil Engineers (ASCE), pp. 1077-1085, 2014 International Conference on Sustainable Infrastructure: Creating Infrastructure for a Sustainable World, ICSI 2014, Long Beach, United States, 11/6/14. https://doi.org/10.1061/9780784478745.102
Squier MN, Ahmad JB, Cui Z, Davidson CI. Preliminary heat transfer analysis for a large extensive green roof. In ICSI 2014: Creating Infrastructure for a Sustainable World - Proceedings of the 2014 International Conference on Sustainable Infrastructure. American Society of Civil Engineers (ASCE). 2014. p. 1077-1085 https://doi.org/10.1061/9780784478745.102
Squier, Mallory N. ; Ahmad, J. B. ; Cui, Zhi ; Davidson, Cliff Ian. / Preliminary heat transfer analysis for a large extensive green roof. ICSI 2014: Creating Infrastructure for a Sustainable World - Proceedings of the 2014 International Conference on Sustainable Infrastructure. American Society of Civil Engineers (ASCE), 2014. pp. 1077-1085
@inproceedings{cc40f75e50664e3ba551ed09ce497b67,
title = "Preliminary heat transfer analysis for a large extensive green roof",
abstract = "Extensive green roofs provide many ecosystem services lacking in the urban environment and are a widely implemented green infrastructure solution for urban stormwater. Yet few studies consider the performance of large green roofs after installation. This study presents initial data covering a few days in fall 2013 collected at a large exterior green roof (0.56 ha) in Syracuse, New York. Temperature sensors were installed throughout the layers of the roof during construction. Daily temperature follows an approximate sine curve with amplitude decreasing as a function of depth into the roof. Analysis of temperature within the roof layers indicates lag times of 3 to 4 h relative to air temperature, illustrating slow heat transfer through the layers. Initial observations of growth medium moisture conditions show changing thermal properties as moisture content changes. Future work will consider heat transfer in all seasons and the influence of building HVAC system data on the roof temperature profile.",
author = "Squier, {Mallory N.} and Ahmad, {J. B.} and Zhi Cui and Davidson, {Cliff Ian}",
year = "2014",
doi = "10.1061/9780784478745.102",
language = "English (US)",
isbn = "9780784478745",
pages = "1077--1085",
booktitle = "ICSI 2014: Creating Infrastructure for a Sustainable World - Proceedings of the 2014 International Conference on Sustainable Infrastructure",
publisher = "American Society of Civil Engineers (ASCE)",
address = "United States",

}

TY - GEN

T1 - Preliminary heat transfer analysis for a large extensive green roof

AU - Squier, Mallory N.

AU - Ahmad, J. B.

AU - Cui, Zhi

AU - Davidson, Cliff Ian

PY - 2014

Y1 - 2014

N2 - Extensive green roofs provide many ecosystem services lacking in the urban environment and are a widely implemented green infrastructure solution for urban stormwater. Yet few studies consider the performance of large green roofs after installation. This study presents initial data covering a few days in fall 2013 collected at a large exterior green roof (0.56 ha) in Syracuse, New York. Temperature sensors were installed throughout the layers of the roof during construction. Daily temperature follows an approximate sine curve with amplitude decreasing as a function of depth into the roof. Analysis of temperature within the roof layers indicates lag times of 3 to 4 h relative to air temperature, illustrating slow heat transfer through the layers. Initial observations of growth medium moisture conditions show changing thermal properties as moisture content changes. Future work will consider heat transfer in all seasons and the influence of building HVAC system data on the roof temperature profile.

AB - Extensive green roofs provide many ecosystem services lacking in the urban environment and are a widely implemented green infrastructure solution for urban stormwater. Yet few studies consider the performance of large green roofs after installation. This study presents initial data covering a few days in fall 2013 collected at a large exterior green roof (0.56 ha) in Syracuse, New York. Temperature sensors were installed throughout the layers of the roof during construction. Daily temperature follows an approximate sine curve with amplitude decreasing as a function of depth into the roof. Analysis of temperature within the roof layers indicates lag times of 3 to 4 h relative to air temperature, illustrating slow heat transfer through the layers. Initial observations of growth medium moisture conditions show changing thermal properties as moisture content changes. Future work will consider heat transfer in all seasons and the influence of building HVAC system data on the roof temperature profile.

UR - http://www.scopus.com/inward/record.url?scp=84915820275&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84915820275&partnerID=8YFLogxK

U2 - 10.1061/9780784478745.102

DO - 10.1061/9780784478745.102

M3 - Conference contribution

AN - SCOPUS:84915820275

SN - 9780784478745

SP - 1077

EP - 1085

BT - ICSI 2014: Creating Infrastructure for a Sustainable World - Proceedings of the 2014 International Conference on Sustainable Infrastructure

PB - American Society of Civil Engineers (ASCE)

ER -