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The Thermal Analysis of Green Roof Performance in Different

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leen mkhaimer

on 18 October 2016

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Transcript of The Thermal Analysis of Green Roof Performance in Different

Analyzing
Green Roof
Performance
at Different Climates in Jordan

A green roof is a roof of a building that is partially or completely covered with vegetation and soil, or a growing medium, planted over a waterproofing membrane
What is a
Green Roof
?
Reduce
Energy
Consumption
CO2
Storm water
Management
Reduce Heat
island Effect
Benefits
Types
Anatomy
Extensive
Intensive
Faten Sarayrah
Leen Mkhaimer
Lina Al-Kurdi
Reem Al-Masri
Prepared by
Objectives
Aqaba
Irbid
Amman
To evaluate the effect of green roofs on the heating and cooling loads of the residential houses in Jordan at different locations and climates

To develop an optimized set of parameters of green roofs for each climate

To provide a decision tool when designing green roofs for different climates in Jordan

To preset a simplified physical green roof model for educational purposes
Analysis
Cost
Design
HAP
Selected Parameters
Soil depth
Insulation Thickness
27 cases
are investigated
9 cases for each region
Amman
Irbid
Aqaba
Simple
Experiment
Conventional
Green Roof
Materials:
Two identical boxes
Tar paper
Sod
Three thermometers
Timer
Heat lamp
Glue
Step 1
Step 2
Step 3
Results:
Energy Balance of a Green Roof
Summary
Prices, Expenses & Income
Annual Savings
Project attractiveness
Heat Flux
Conclusion
Green roofs in general have a positive impact on the building and have a potential to reduce the energy use intensity in comparison to conventional roof.
Insulation thickness is the parameter that affects the EUI of the building the most in all climate types.
the soil depth parameter affects the EUI nominally for all climate types.
Green roofs are more effective in reducing the heating loads of a building
Limitations
Only two parameters were selected with a limit on the number of subset variables for each parameter.
It was assumed that 100% of the building roof area was a green roof, which may not be the case always.
limitation of the green roof model integrated in HAB software
Future Work
This includes the number of parameters being tested and the different climates under which the testing is done.
The use of different simulation softwares to see which one simulates the behavior of green roofs more accurately and effectively
THANK YOU
An online tool available for the public may be developed.
NPV
Full transcript