1. *Airtightness
1.1. Infliration
1.2. air leakage
1.3. mechanical vent /exhaust system
2. Level of Insulation
2.1. *Window Glazing (?)
3. Constrint
3.1. Climate Conditions
3.1.1. Summer- overheating
3.1.1.1. Size of Optimism Overhangs Calculation
3.1.2. Winter- heat loss
3.2. General Operation
3.2.1. Unbalanced ratio of thermal mass & windows
3.2.2. nighttime window insulation (esp. winter)
3.2.2.1. heavy drapes
3.2.2.2. quilted shades
3.2.2.3. accordion blinds
4. Scientific Concepts
4.1. Movement of Sun Path
4.1.1. Summer time (Higher & Longer)
4.1.1.1. Setting overhang & Shade
4.1.2. Winter time (Lower & Shorter)
4.1.2.1. Maximise southern explosure for heating in winter
4.2. Movement of Heat
5. Aim
5.1. Investigate the possibility of sufficient heat from sunlight in winter (Various Location in UK)
5.2. Viability for investment
6. Objective
6.1. Economical
6.1.1. positive cash flow
6.1.2. reasonable pay back period (capital investment vs energy bill saving)
6.2. Use of natural light
6.3. Thermal Comfort
6.3.1. Satisfy the heating and cooling demand throughout the year
6.3.2. Steps
6.3.2.1. 1) Collection of Solar Energy
6.3.2.2. 2) Storage of Heat
6.3.2.2.1. Thermal Mass
6.3.2.3. 3) Distribution
6.3.2.3.1. Hybrid System of Heat
7. Eliminating Thermal Bridging
8. Types of Systems
8.1. prevent extreme temperature swing
8.2. Direct Solar Gains
8.2.1. Matlab Calculation
8.2.1.1. Various Location (How to divide the zone in UK?)
8.2.1.2. Sunlight time Parameters
8.2.1.2.1. Latitude
8.2.1.2.2. Elevation
8.2.1.2.3. Horizon Shading (Surrounding Environment?)
8.2.1.2.4. Slope
8.2.1.2.5. Time of year & Hour of the day (Usually 9am-to 3pm but varies between summer and winter time)
8.2.1.2.6. Ground Reflectance (Outdoor)
8.2.1.3. *Solar Heat Gain Coefficient of windows
8.2.2. Advantage
8.2.2.1. Low Cost to build
8.2.2.2. direct heat to living space
8.2.3. Disadvantage
8.2.3.1. loss of privacy (Large Windows)
8.2.3.2. *Natural daylight from south facing window
8.2.3.3. requires summer shading
8.2.3.4. requires nighttime insulation
8.2.4. Colours of wall
8.2.4.1. Absorbptivity scale of diffusion of light
8.3. Indirect gain
8.3.1. Advantage
8.3.1.1. flexible floor area usage
8.3.1.2. greater privacy
8.3.2. trombe wall
8.3.2.1. storage mass between glass and living space
8.3.2.2. mass heats up slowly and release heat (6-8 hrs)
8.3.2.3. poorly insulated
8.3.3. Disadvantage
8.3.3.1. requires moveable insulation on summer days & winter days without sunchine
8.3.3.2. loss of natural light
8.4. Isolated gain
8.4.1. form of attached greenhouse
8.4.1.1. Conduction of heat from adjoining wall
8.4.2. controllable during extreme weather
8.4.3. advantage
8.4.3.1. drop in temperature fluctuation
8.4.4. disadvantage
8.4.4.1. shading/ vent required