Heat, ventilation, and air conditioning are the most energy using technology in most of the building types in the world. What is the green technology integrated with HVAC? Is it more effective than the traditional HVAC system? 

What?

The green HVAC implies the technology that requires less cost and fewer complexities for more energy requirements. Currently, many types of green systems are available such as dual fuel heat pumps, ice-powered air conditioning, quiet duct wraps, and geothermal heat pumps.

Why is it so important?

1. This will help to reduce the greenhouse gas emission
2. Help to reduce the environmental footprint
3. Saving cost by enhancing the energy efficiency
4. Replaced R22 refrigerant gas – The R22 is considered an illegal gas currently because of its environmental pollutant character. Replacing R22 is a better action considering the environmental perspective. Now, R410A gas is used as the alternative to R22.
5. Supporting the green concept – Due to the world crisis of global warming, environmental protection is considered the best practice for any work. Now locally and globally, there are many policies and procedures taken for this matter and this technology supports this.

Strategies

1. Using green enhancements for traditional systems – Applications of the smart thermostat and economizer will convert the traditional HVAC systems for greenery concept.
2. Zoned HVAC practice – The premises can be divided into zones and supplied the service. This will help to allow a comfortable area for occupants to adjust or switched off as the need. And it will reduce the energy and cost for supplying service for unused areas.
3. Using Variable Refrigerant Flow (VRF) – VRF can detect the requirement of each flow and control the refrigerant flow in Air Handling Unit (AHU).
4. Using solar energy for powering the HVAC system and geothermal can be used for this purpose except in ice landers. 
5. Ice-powered air conditioners – Here, ice that freezes water at night can be used rather than using the compressor during the hottest periods.
6. Using modern hydronic heating systems for heating

Green HVAC is a new technology in the service sector that will help for the protection of the environment by contributing to reduce environmental pollution. Further, this technology is very effective and efficient in energy usage than traditional HVAC systems used in current scenarios.

References

https://www.coxair.com/2019/09/18/how-green-technologies-are-changing-hvac-systems/

https://aristair.com/blog/green-hvac-technology-reasons-to-switch-now/