Heat Loss in Structures
Saanvi Kunisetty
What Causes Heat Loss?
Heat can transfer (and be lost) in 3 scientifically defined ways:
Conduction: heat transfer through direct contact, where the heat moves from the hot object to the cold object
Convection: heat transfer through a fluid (which can be a gas or liquid), where hotter regions of the fluid rise (because they are less dense), while cooler regions sink, and this occurs in a circular fashion
Radiation: heat transfer by the means of electromagnetic waves through space (ex: sunlight traveling through space to Earth)
How Can Heat Loss in Structures Occur?
Air Infiltration/Leakage: unintentionally bringing outside air into a building
Ventilation: Warm air escaping out of building being replaced by cold air from outside
Radiation Transmission: Heat loss through infrared rays
Practical Applications:
A structure with greater surface area and smaller volume
A structure that uses materials which conduct heat (conductors)
How Do You Prevent Heat Loss in Structures?
Use materials that are good insulatorsLarger buildings with more volume compared to surface area (less surfaces for heat to escape from)
Less windows, doors, etc
Add carpets, rugs, curtains, and mats
Add vegetation around the structure to prevent wind from entering
Floor Insulation
Cavity Walls
Resources:
https://www.buildingscience.com/documents/digests/bsd-011-thermal-control-in-buildings
https://inhabitat.com/7-eco-friendly-insulation-alternatives-for-a-green-home/
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