11 mn01.pptx
DESCRIPTION
building energy software - parasolTRANSCRIPT
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By
ANIRUDH B
ME Energy
Solar protection in buildings using PARASOL (BEA software)
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IntroductionParasol can produce the following results:Primary and total solar transmittance for the
sunshade and the window for each month during a year.
Daily values of cooling and heating demand, and the maximum cooling and heating input over the year.
Duration diagrams for indoor temperatures and cooling and heating load.
Duration diagram for operative room temperatures. Daily values of primary transmitted solar radiation. Design days for heating and cooling.Monthly and annual values of energy use for pre-
heating and pre-cooling of the inlet air. Monthly and annual values of electricity output when
a sunshade of type PV screen is used.
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1.Solar protection simulation using single pane window and awning sunshade:
Geometry of the room:
Comparison of two different window structures and sun shades
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1.Solar protection simulation using single pane window and awning sunshade:
Window embrasure and
frame:
Comparison of two different window structures and sun shades
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1.Solar protection simulation using double pane window and awning sunshade:
Site and orientation:
Comparison of two different window structures
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1.Solar protection simulation using single pane window and awning sunshade:
Walls construction:
Comparison of two different window structures
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Window type:
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External Sunshade: Awning
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Interpane Sunshade: Venetian blind
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Internal Sunshade: Pleated curtain
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Solar Transmittance Simulation: Double pane window with awning sunshade
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Solar Transmittance Simulation: Double pane window with awning sunshade
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Energy Balance Simulation: Double pane window with awning sunshade (Energy required to keep the inlet air at 17 deg C)
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Energy Balance Simulation: Double pane window with awning sunshade ( solar insolation with and without sunshade)
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Energy Balance Simulation: Double pane window with awning sunshade ( heat and cold energy required with sunshade per day)
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Energy Balance Simulation: Double pane window with awning sunshade (design days – peak load)
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Energy Balance Simulation: Double pane window with awning sunshade (design days – outdoor temp)
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Solar transmittance Simulation: Triple pane window with awning sunshade
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Solar transmittance Simulation: Triple pane window with awning sunshade
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Energy balance Simulation: Triple pane window with awning sunshade
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Energy balance Simulation: Triple pane window with awning sunshade
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Energy balance Simulation: Triple pane window with awning sunshade
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Energy balance Simulation: Triple pane window with awning sunshade
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Energy balance Simulation: Triple pane window with awning sunshade
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Conclusion:
Solar protection in buildings is simulated for two different window structures and arrived with the following conclusion:
The maximum cooling and heating load decreases by 9W and 36W when triple pane window is used.
Therefore the cooling and heating demand also decreases accordingly.
The usage of sunshades during summer conditions is a must since it reduces the energy usage by nearly 45 -50% (in both window structures)
The usage of sunshades during winter conditions must be avoided since it reduces energy usage by nearly 30% (in both window structures).
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References:
PARASOL V6.6 – Energy Efficiency and Renewable Energy, US department of Energy.