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Dispelling Inverter advertising myths
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<blockquote data-quote="Crazy_Eddy" data-source="post: 1945523" data-attributes="member: 167"><p>Back on topic, since vvvinashhh's magnificent brain couldn't figure out what was wrong, the error is quite basic - duty cycle of the non-inverter AC.</p><p></p><p><img src="http://i.imgur.com/zsc22sD.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>If you notice, the non-inverter's hourly power usage is :- 446 units / 31 days / 8 hours = 1.8KW. The non-inverter's peak power consumption is also 1.8KW. In other words the AC is running at a 100% duty cycle, which does not happen under normal circumstances.</p><p>If it does happen to run at a consistent 100% duty cycle, then the heatload is a consistent ~5.2KW as well (1.8KW x 2.9 COP for 2 star = ~5.2KW). Since the Inverter AC's rated cooling capacity is 5.2KW, it will consume 1.44KW not 875W, to cope with the same 5.2KW heatload.</p><p></p><p>=====================</p><p></p><p></p><p>And you are doing neither. This thread isn't about your bills (already addressed in another thread - you refused to answer), its to clear the air about inverter advertisements.</p><p></p><p></p><p>They've calculated an average power. So if the AC power consumption peaked during the first hour, the latter hours would've been much below 875W to give an average of 875W. Also the AC uses full power if the heatload demands it.</p></blockquote><p></p>
[QUOTE="Crazy_Eddy, post: 1945523, member: 167"] Back on topic, since vvvinashhh's magnificent brain couldn't figure out what was wrong, the error is quite basic - duty cycle of the non-inverter AC. [IMG]http://i.imgur.com/zsc22sD.png[/IMG] If you notice, the non-inverter's hourly power usage is :- 446 units / 31 days / 8 hours = 1.8KW. The non-inverter's peak power consumption is also 1.8KW. In other words the AC is running at a 100% duty cycle, which does not happen under normal circumstances. If it does happen to run at a consistent 100% duty cycle, then the heatload is a consistent ~5.2KW as well (1.8KW x 2.9 COP for 2 star = ~5.2KW). Since the Inverter AC's rated cooling capacity is 5.2KW, it will consume 1.44KW not 875W, to cope with the same 5.2KW heatload. ===================== And you are doing neither. This thread isn't about your bills (already addressed in another thread - you refused to answer), its to clear the air about inverter advertisements. They've calculated an average power. So if the AC power consumption peaked during the first hour, the latter hours would've been much below 875W to give an average of 875W. Also the AC uses full power if the heatload demands it. [/QUOTE]
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