Let's talk about energy! Easy improvements to tropical HVAC design today :
1. ACs are often placed at room-top, this is fine; however air filters should be located at room-bottom, sending clean air upwards for cooling - otherwise dirty air travels upwards, an anti-pattern.
2. When AC is in use, a heat exchanger pattern is required to allow stale air to egress and fresh air to ingress, while minimising heat ingress to the cold room.
3. Heat exchangers can also link the walls and floor of a building to any cooler earth beneath, or around it.
4. Wherever heat exchangers are needed, a consideration may be made for copper or aluminium heat pipes of a large calibre. The careful design of such structures should ensure easy maintenance, and durability or replacement.
5. When water is in abundance, heat pipes can play a crucial role in the design of indirect evaporative cooling. Evaporator chambers may consist of arboreta, decorative water features, or simply misted cooling towers.
6. AC condensate should always be recycled for its evaporable qualities, perhaps closer to AC condensors.
7. Heat pumps and expander-generators may be considered for the recovery of energy from AC systems.
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