Editing Refrigerator (section)

==== Inverter ====
[[File:Холодильник в сельском магазине.jpg|thumb|Refrigerator in a rural store]]
With the advent of digital [[inverter compressor]]s, the energy consumption is even further reduced than a single-speed induction motor compressor, and thus contributes far less in the way of greenhouse gases.<ref>{{Cite web|url=https://news.samsung.com/global/how-the-digital-inverter-compressor-has-transformed-the-modern-refrigerator|title=How the Digital Inverter Compressor Has Transformed the Modern Refrigerator|website=news.samsung.com|access-date=25 January 2020|archive-date=15 February 2020|archive-url=https://web.archive.org/web/20200215211111/https://news.samsung.com/global/how-the-digital-inverter-compressor-has-transformed-the-modern-refrigerator|url-status=live}}</ref>

The energy consumption of a refrigerator is also dependent on the type of refrigeration being done. For instance, Inverter Refrigerators consume comparatively less energy than a typical non-inverter refrigerator.  In an inverter refrigerator, the compressor is used conditionally on requirement basis. For instance, an inverter refrigerator might use less energy during the winters than it does during the summers. This is because the compressor works for a shorter time than it does during the summers.

Further, newer models of inverter compressor refrigerators take into account various external and internal conditions to adjust the compressor speed and thus optimize cooling and energy consumption. Most of them use at least 4 sensors which help detect variance in external temperature, internal temperature owing to opening of the refrigerator door or keeping new food inside; humidity and usage patterns. Depending on the sensor inputs, the compressor adjusts its speed. For example, if door is opened or new food is kept, the sensor detects an increase in temperature inside the cabin and signals the compressor to increase its speed till a pre-determined temperature is attained. After which, the compressor runs at a minimum speed to just maintain the internal temperature. The compressor typically runs between 1200 and 4500&nbsp;rpm.
Inverter compressors not only optimizes cooling but is also superior in terms of durability and energy efficiency.<ref>Chang, Wen Ruey; Liu, Der Yeong; Chen, San Guei; and Wu, Nan Yi, "The Components and Control Methods for Implementation of Inverter-Controlled Refrigerators/Freezers" (2004). International Refrigeration and Air Conditioning Conference. Paper 696. http://docs.lib.purdue.edu/iracc/696</ref>
A device consumes maximum energy and undergoes maximum wear and tear when it switches itself on. As an inverter compressor never switches itself off and instead runs on varying speed, it minimizes wear and tear and energy usage.
[[LG Corporation|LG]]  played a significant role in improving inverter compressors as we know it by reducing the friction points in the compressor and thus introducing [[Linear compressor|Linear Inverter Compressors.]] Conventionally, all domestic refrigerators use a reciprocating drive which is connected to the piston. But in a linear inverter compressor, the piston which is a permanent magnet is suspended between two electromagnets. The AC changes the magnetic poles of the electromagnet, which results in the push and pull that compresses the refrigerant.  LG claims that this helps reduce energy consumption by 32% and noise by 25% compared to their conventional compressors.