Which is the most effective for saving energy in heating,ventilation and air conditioning (HVAC)?

Nov. 29, 2010 - PRLog -- About 40% of all energy consumption in Europe and North America is consumed in buildings. And the biggest share of this energy consumption is used in heating, ventilation and air conditioning (HVAC) applications. A lot of money on the energy bill is paid on HVAC applications. If, if we can reduce the power consumption in the building, exactly on heating, ventilation and air conditioning (HVAC) applications, we can absolutely save a lot of our money!

40% of all energy consumed! The savings potential in heating, ventilation and air conditioning (HVAC) applictions is very, very big. And the rising energy cost and concerns about the CO2 levels and global warming make us to choose a better method.

There are a lot of measures for saving money in the building, such as applying renewable power (wind power, solar energy), reducing the time of unnecessary lighting in the building. Yes. These methods are feasible. We benefit from them.

But the most effective way for saving energy in the building, to be exact, in HVAC applictions, is applying frequency inverters (variable speed drives).

The majority of HVAC applications where we can apply frequency inverters (variable speed drives) are fans, pumps and compressors.

Below I will go deeper on this.

For fans and pumps, frequency inverters (variable speed drives) can adjust the speed of the pump and fan by changing the electrical energy supplied. This brings substantial energy savings. The payback time of the investment of frequency inverters (variable speed drives) is typically one year or less.

Compressors in heating, ventilation and air conditioning (HVAC) are often used in chillers for cooling water, which again is used for cooling air. Energy conservations are achieved by optimising the system setup of compressor, chilled water circulation and condenser water circulation. Frequency inverters (variable speed drives) play a big role in this situation by tuning the system rather than optimizing individual functions. Because they bring the flexibility of tuning the setup of the system to operate in the most energy efficient operational point.

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