AN-NAJAH NATIONAL UNIVERSITY BUILDING DEPARTMENT
description
Transcript of AN-NAJAH NATIONAL UNIVERSITY BUILDING DEPARTMENT
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AN-NAJAH NATIONAL UNIVERSITY BUILDING
DEPARTMENT
الرحمن بسم الله الرحيم
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Passive Solar Design
This Project is a partial Fulfillment of the degree of
Bachelor of Science In Building EngineeringAt An-Najah National
University
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By:
Mohammad Omariah Maher MatarAmani Al-majdoubeh Atheer
Zedan
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Supervised By: Dr.Mu'tsem F. Ba'baa'
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Chapter One:
Introduction : A passive solar home is one where the design and
construction of the home itself is made to keep the house naturally warm in the winter using the sun's energy. The design should also keep the house naturally cool during
the summer. The basic idea of passive solar home design is to invite sunlight into the house during the winter, and once it is inside the home, to hold it in and store it until nighttime. Conversely, the sun needs to be kept out during the summer.
Passive Solar Design
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Different Solar System For Space Heating :
Solar Window. Solar Wall .Solar Roof .Solar Green House.Solar Chimney .
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Solar Window when you make a conscious
effort to place lots of glass on the south side when you make of your house you call this extra glass (solar window)
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Solar Window
Advantages:
Every one can use this simplest of all solar designs.
Solar windows are inexpensive. Provide a light and airy feeling.
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Disadvantages:
Not every one appreciates sunshine pouring in all day.
Too much glass may cause too much glare.
Doesn't have storage system.
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Solar Wall
When the thermal mass for absorbing the sun's heat is located right inside the glass and the wall painted a dark color.
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Solar Wall
Advantages: Thermal storage walls
solve the heat storage problem.
Can be located in any side of house, while window should be in south side.
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Disadvantages:
The wall also loses heat back to the out of door through the glass . Triple glassing or movable insulation solves this problem in cold climates but can be costly ... keep in, mind that construction of the wall can be expensive & May in some cases reduce available floor area.
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Solar Roof
solar roofs like solarwalls only guess where the heat
storage is instead ! They are often called " thermal storage roofs"
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Solar Roof
Advantages:
Provide for all your heating & cooling needs "keeping you as comfortable"
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Disadvantages:
Required careful design Their efficiency & cost
effectiveness are not nearly as good in cold climates are in dry, sunny, southern ones.
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Solar Green House
Solar heated rooms such as greenhouse, sun porches, & solariums are possibly the hands-down favorite passive solar system
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Solar Green House
Advantages: Can greatly improve the interior climate
of a house Solar room can add humidity to the
house air if desired. A solar room can become additional
living space for a relatively low cost . Beside people love them!
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Disadvantages:
Cause too much glare.Photo gray problem
(materials color changes due to sunlight).
The problem appears in summer, so we need shadow system & also ventilation.
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Solar Chimney
Why solar chimney ??From Our Study It Is Very Feasible For Our
Climate. It Requires Very Little Architectural
Modification In The Building Design. (No Need For Shadow)
Very Little Study has Been Made About It’s Application For Space Heating & Cooling.
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Solar Chimney
Air is warmed as it touches a solar-heated surface. The warmed air rises, and cooler air is drawn in to replace it. This is what happens in an ordinary chimney .
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Solar Chimney
Advantages:-Solar chimneys are very simpleSolar chimneys avoid many of the
problems of direct gain systems, such as glare and heat loss. Also, they're easy to attach to present homes.
Solar chimneys could be used in cooling and heating in summer and in winter.
Solar chimneys don’t need shading.
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Disadvantages:
Like direct gainToo large a system may result
in higher than normal temperatures in the house.
Construction is required to ensure proper efficiency and durability.
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Basic System Design
A solar chimney wall collector is similar to a flat-plate collector used for active systems. A layer or two of glass or plastic covers a black absorber.
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Development of solar chimney:
Original System
Modified solar chimney" cooling by evaporation & ventilation””
-using pottery
-using spray
-metal sheet
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Original System
isolated
glass
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Modified solar chimney
" cooling by evaporation & ventilation’’
using pottery using spray metal sheet
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Using pottery
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Using spray
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Metal sheet
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Model Design
1) Model Site Selection
2) The model components
3) Stages of installation
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Model Site Selection
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Model Site Selection
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Model Site Selection
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The model components
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Stages of installation
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Design of Tow Models
Model AModel B
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Model A
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Model B
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Taking Reading
Types of Readings
THE Applicable Uses Of Solar
Chimney
Method one:
Method tow:
Method three:
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Analysis Calculation
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Results:
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Conclusion:
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Recommendation:
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THE END
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الشرائح عرض نهاية
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