This document provides an overview of thermal energy transfer and ventilation concepts. It defines conduction, convection and radiation, explaining how thermal energy is transferred through these processes. Conduction involves molecular movement through direct contact, convection involves heat transfer between a solid and fluid, and radiation transmits heat through space. The document then discusses how hot air rises and cool air sinks, leading to recommendations for proper ventilation openings. It also introduces cross-ventilation as a passive cooling technique using wind to draw cool air in and warm air out of a building.

1. Darrel Long Ong Xin Jie Teo Zheng Jie Team G-Power Energy Efficiency (Ventilation) Lesson 1 Introductory Lecture

2. Lesson Objectives Lesson 1 Introductory Lecture

3. Thermal Energy Transfer Lesson 1 Introductory Lecture

7. Conduction, Convection and Radiation Lesson 1 Introductory Lecture CHALLENGE: Can you identify the processes of conduction , convection and radiation here?