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Thermal control & Ventilation - Coggle Diagram
Thermal control & Ventilation
What is Temperature Control?
A process to measure temperature changes and the way heat energy gets in & out the the space.
Thermal Conductivity
DIRECT MOLECULAR INTERACTON
Thermal Conductivity = time rate transfer of heat through thickness ( T ) across unit area ( A ) for a unit difference in temperature ( AT )
Thermal Equilibrium
Heat needs to achieve balance between supply and demand.
Between Gain or Loss, Rise or Fall, Expansion or Constraction
When equilibrium achieved, the process stop momentarily.
Thermodynamics Knowledge: passive heating and cooling effect on building, making a space comfortable to use.
First law of thermodynamic
Energy cannot be created or destroyed, but can be transformed from one form to another energy.
E.G: Heat energy cannot be lost, it can be converted to another form of energy such as electrical, chemical.
Second law of thermodynamics
Heat seek for cold. Absorbed heat will constantly move to attain equilibrium throughout building mass.
Hot molecules are active, while cold molecules are still or quiet.
HEAT WILL CONSTANTLY SEEL OUT COOLER REGIONS.
Passive design
Rise & Fall
In hot air balloon, heated air is trapped in it. Heated air volume gets bigger. Air is lighter from surrounding, Hence it rises.
Expansion & Contraction
If heat rises, the volume expands.
When it cools, the volume contract
Coefficient of thermal equilibrium is a factor to rate expansion degree of a material.
Stratification
Different activity in the space require different thermal comfort
Applied in space planning for heat storage according to function
It is classification of arrangement
Ways of heat transfer:
Conduction - Direct contact
Convection - Fluid
Radiation - Through space
Ventilation
Determined by
Airflow speed
Direction
ventilation
Window placement can either catch or slow down prevailing breeze.
Fenestration
Design and placement of windows.
Strategic location
Openings is the natural way for ventilation
The size, placement, type of opening, material
types of windows
Awning Window
Casement window
Louvers
