A dual inverter air conditioner gets its name from the “twin rotary compressor” that it houses. Normal inverter compressors used a variable speed, single-cylinder, single rotary compressor operating on a single-rotation, single-compression principle. This compressor structure, however, was short of assuring the air conditioner its full performance, because it is liable to vibration, noise, and shaft whirling associated with rotational imbalances, limiting the minimum and maximum working rpm.
On the other hand, a twin rotary compressor is furnished with two compression chambers to produce a phase difference of 180° in their mutual compression timing. With significantly improved rotational balancing and compression torques. the twin rotary compressor operates from as low as 720 RPM to as high as 9000 RPM.
It has not only brought about a five- to ten-fold increase in the variable working rpm range (maximum/minimum RPM), but has realized high efficiency, low noise, and low vibration throughout the RPM range.
As dual inverter ACs are becoming more popular these days, brands like LG, Samsung, and Hitachi are releasing some of the best inverter ACs on the market to compete. Here are some ways in which dual inverter ACs beat ordinary inverter ACs. This AC Buying Guide Can help you a lot at the time of AC Buying.
An inverter AC’s compressor uses the BLDC motors which vary the compressor’s speed in accordance with external demand. Compressors offer better temperature control without always running at maximum speed. Dual inverter compressors use a more advanced version of BLDC motors than traditional inverter ACs.
Due to their twin rotators, there is a faster cooling at a wider operating frequency or ‘broader tonnage’. Hence, dual inverters offer better cooling in terms of precision in temperature control due to variable tonnage and speed of cooling.
Lower Energy Use
Dual inverters boast a greater amount of energy-efficient output over normal inverter ACs. LG’s Dual Inverter AC, in particular, claims that when it is compared to 5-star split AC (which appears to be the most energy-efficient option on the market), it’s 1.5-ton Dual Inverter AC will save over 830 units as direct power for the consumer.
This would amount to savings worth ₹6000 annually. This is due to the twin compressors having a wide operating range and lower frequency of rotation, therefore lower power needs, than a single rotary compressor.
Ordinary inverter AC uses a single cylinder-shaped rotary compressor. Since the operation of a single compressor requires high-speed rotation, it tends to generate a lot of vibration. This increases noise levels, especially when the shaft of the AC is whirring at full capacity.
The twin-rotary compressors in dual inverter ACs turn with a phase difference of 180 degrees, which promotes more stability when they are operating at full capacity. More stability means fewer vibrations and whirring and, ultimately, lesser noise.