In summers, we are not able to survive without an air conditioner in India. A common problem is with an electricity bill and air conditioning consumes a great deal of energy. Therefore, Inverter air conditioners were launched to tackle this issue, and features inverter technology and are much more energy-efficient. However, recently an improvement of the inverter technology has been introduced, and that is the dual inverter technology.
If you want to choose an air conditioner, you need to understand the complete and in-depth differences between inverter and dual inverter air conditioners. Then, it will help you in making an easier choice.
What is Inverter Technology?
Let’s understand the technology with a simple example. While driving a car, the engine needs more fuel to reach the speed we desire. Therefore, when we accelerate the engine, we achieve a higher speed. On the other hand, when we reduce the speed, the engine uses less fuel.
The same principle applies to inverter technology as well. For example, if the air conditioner is on, it has to lower the room temperature faster, meaning the compressor has to work harder and consume more power as a result. Later, when the room cools, the compressor then automatically slows down, and the power consumption also reduces once the room temperature reaches the set temperature.
AC inverter compressors use brushless DC motors which vary in their speed based on the demands of the external environment. It allows the compressor to run at the optimal speed without having its speed at its maximum limit.
Compressors having a single rotor are known as Single Inverter compressors. Despite their compatibility with DC, they can be changed to meet the requirements of different loads. Nonetheless, they provide less energy efficiency than Dual Inverters cause single-rotor machines have high compression loads, eventually resulting in reduced cooling efficiency and higher vibration.
Dual inverter air conditioners – what are they?
Dual inverter air conditioners are one step ahead of single inverter air conditioners and are the most advanced options available. Compressors with dual inverter technology or two rotors are referred to as twin rotary compressors. BLDC motors are used in dual inverter compressors, whereas traditional inverter air conditioners use induction motors.
The twin rotary compressors use less electricity as compared to the single inverter ACs. Here, the twin rotors reduce the compression load, eventually improving cooling efficiency and reducing vibration compared with a single inverter compressor.
As compared to normal inverter ACs, dual inverters deliver a greater level of efficiency. For example, it is claimed that a normal 1.5 ton split AC inverter (dual rotors) will save consumers about 750-820 units of power as compared to 5-star split ACs.
Why Inverter Technology?
An inverter is one of the best technologies out there for reducing energy consumption and improving cooling efficiency. The Dual Inverter AC is a better version over a single inverter AC and the very same can be seen in the factors given below:
● Compressors: A normal inverter is equipped with a single rotor compressor, which consumes less energy, produces better results, and is more efficient than a non-inverter compressor. However, when two rotors are included in Dual inverter technology, the benefits also double. Both parts of the compressor provide faster cooling and greater efficiency than normal inverter compressors.
● Energy Consumption: Dual inverter compressors have two rotors, and require half the RPM of a standard inverter compressor to compress the refrigerant. The cooling temperature is also achieved using less power since two rotors are operated together at a lower RPM.
● Cooling Output: Dual inverter compressors also generate better output. The load for compression in a single impeller and rotor is higher, and thus, the output is also lesser for a normal inverter compressor.
● Noise Level and Life Span: Due to their dual rotors, these dual inverter compressors perform well at low motor speeds, due to which dual Inverter ACs are much more silent than single inverter ACs. The dual inverter ACs also have a longer lifespan than a typical inverter AC since the load on the compressor is lower with a dual inverter.
