Heating processes in HVAC

 Here are the common heating processes:

1. Convection: 

Heat transfer through fluid circulation.

2. Radiation: 

Heat transfer through electromagnetic waves.

3. Conduction: 

Heat transfer through direct contact.

4. Combustion: 

Burning fuel to produce heat.

5. Heat Pumping: 

Transferring heat from one location to another.

6. Steam Generation: 

Producing steam for heating and humidification.

7. Hot Water Generation: 

Heating water for space heating and domestic use.

8. Electric Resistance Heating: 

Converting electrical energy to heat.

9. Infrared Heating: 

Using infrared radiation for direct heat transfer.

10. Phase Change: 

Using materials that change phase to absorb and release heat.

11. Desiccant Heating: 

Using desiccants to absorb moisture and heat.

12. Heat Recovery: 

Recovering heat from exhaust air, water, or processes.

13. Thermal Storage: 

Storing thermal energy for later use.

14. District Heating: 

Distributing heat from a central source to multiple buildings.

15. Cogeneration: 

Producing both heat and electricity from a single fuel source.

These heating processes are used in various applications, including building heating, industrial processes, and power generation.