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Managing energy demand from buildings Profile, energy efficiency and the effects of climate in Bangladesh

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November 2011-March 2012 Managing energy demand from buildings Profile, energy efficiency and the effects of climate in Bangladesh Monjur Mourshed – PowerPoint PPT presentation

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Title: Managing energy demand from buildings Profile, energy efficiency and the effects of climate in Bangladesh


1
Managing energy demand from buildingsProfile,
energy efficiency and the effects of climate in
Bangladesh
Sub-hourly electricity demand November 2011-March
2012
  • Monjur MourshedBuilding Energy Research
    GroupLoughborough University

2
Project details
  • 3 year research project, funded by the British
    Council
  • Project partners
  • Rob Wilby, Department of Geography, Loughborough
    University
  • Fuad Mallick, Department of Architecture, BRAC
    University
  • Aims
  • Assess the impact of built environment on energy
    demand
  • Investigate the impact of changing climates
  • Develop a framework for resilient built
    environment in Urban Dhaka, considering
  • Energy
  • Human comfort and wellbeing

3
Power outage in Dhaka
Dhaka during blackout Overlooking Mohakhali 02
April 2012
Immediately before blackout
4
Context Energy demand and generation
Peak demand (2012) 7.5 GW
Generation capacity (2012) 8.0 GW

High speed diesel (10.19)
Hydro
Coal
Heavy fuel oil (5)
Furnace oil
33.7 GW
7 pa
7.5 GW
Gas (76)
5
Sub-hourly demand and generation profiles
6
Sub-hourly shortage (outage) profile
7
Hourly demand vs. generation profile
March weekend 29/3/2012
December weekend 21/7/2012
8
How do people cope with outages?
9
Coping with outages Energy storage and gen.
systems
Commercial Diesel gen-sets UPS
Domestic Diesel gen-sets EPS Backup power
supply (.5-1 hr)
10
Simulation Investigating the effects of glazing
on lighting
  • Typical mid-rise
  • Location Banani
  • Single leaf construction
  • Different glazing types
  • Typical office occupancy

11
Effect of glazing type on daylighting availability
Double Clear 6mm Argon - 13mm SHGC
.698 LT .781 U-value 2.549
Single Clear 6mm SHGC .810 LT
.881 U-value 6.121
  • South zone
  • Model parameters
  • CIE clear sky
  • 21 July at noon

Double Low E (e2.1) 6mm Argon - 13mm SHGC
.564 LT .745 U-value 1.499
Single Tinted 6mm SHGC .427 LT
.251 U-value 6.066
12
Reducing lighting energy during the day Effect
of glazing
South zone
North zone
13
Increasing temperature and demand for cooling
14
Changes in mean daily temperature More warming
during winter
15
Projected increases in cooling degree-days
cooling energy consumption
16
Concluding remarks
17
Thank you
  • Project website http//www.adaptablecities.org/
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