Coefficient of performance: Revision history

13 October 2023

• curprev 08:0708:07, 13 October 2023 96.227.223.203 talk 11,844 bytes +38 No edit summary undo
• curprev 08:0308:03, 13 October 2023 96.227.223.203 talk 11,806 bytes −1 No edit summary undo

15 September 2023

• curprev 11:1111:11, 15 September 2023 194.218.10.148 talk 11,807 bytes −2 →Theoretical performance limits undo

18 August 2023

• curprev 00:4600:46, 18 August 2023 Natg 19 talk contribs m 11,809 bytes +19 Disambiguating links to Energy efficiency (link changed to Thermal efficiency) using DisamAssist. undo

15 August 2023

• curprev 03:0203:02, 15 August 2023 Guy Harris talk contribs 11,790 bytes −4 →Theoretical performance limits: Get rid of extra white space characters. undo

10 August 2023

• curprev 07:2507:25, 10 August 2023 Kku talk contribs m 11,794 bytes +4 link [eE]nergy efficiency undo Tag: Disambiguation links added

28 July 2023

• curprev 18:2518:25, 28 July 2023 Dmd3e talk contribs 11,790 bytes −149 No edit summary undo

17 April 2023

• curprev 21:3721:37, 17 April 2023 68.119.233.31 talk 11,939 bytes 0 →Improving the COP: Modified wording implying heat pumps can't produce hot water, which is incorrect. undo

24 February 2023

• curprev 09:5209:52, 24 February 2023 Dividingbyzerofordummies talk contribs m 11,939 bytes +40 Added missing "the", commas etc. undo

8 February 2023

• curprev 10:3910:39, 8 February 2023 ReyHahn talk contribs 11,899 bytes +156 labels vs variables undo Tag: Visual edit: Switched

7 February 2023

• curprev 09:3609:36, 7 February 2023 ReyHahn talk contribs 11,743 bytes −4,426 →Example: unreferenced and unencyclopedic since 2012, it does more harm than good undo

22 October 2022

• curprev 20:2720:27, 22 October 2022 Comfr talk contribs m 16,169 bytes +5 break down this complicated paragraph into smaller chunks undo

15 October 2022

• curprev 21:1821:18, 15 October 2022 LilianaUwU talk contribs m 16,164 bytes −19 Reverted edits by 102.185.6.81 (talk) (HG) (3.4.10) undo Tag: Rollback
• curprev 21:1821:18, 15 October 2022 102.185.6.81 talk 16,183 bytes +19 No edit summary undo Tag: Reverted
• curprev 20:5820:58, 15 October 2022 102.40.228.11 talk 16,164 bytes −4 . undo Tags: Manual revert Visual edit
• curprev 20:5720:57, 15 October 2022 102.40.228.11 talk 16,168 bytes +4 . undo Tags: Reverted Visual edit
• curprev 20:5220:52, 15 October 2022 102.185.6.81 talk 16,164 bytes 0 →Equation undo Tag: Manual revert
• curprev 20:5120:51, 15 October 2022 102.185.6.81 talk 16,164 bytes 0 →Equation undo Tag: Reverted

22 September 2022

• curprev 11:4011:40, 22 September 2022 Rwendland talk contribs m 16,164 bytes +4 wl undo

18 September 2022

• curprev 13:1113:11, 18 September 2022 Rjghermsen talk contribs m 16,160 bytes +31 →Theoretical performance limits undo

29 June 2022

• curprev 13:3113:31, 29 June 2022 88.19.1.182 talk 16,129 bytes +174 Grundfos link changed to archive undo

25 May 2022

• curprev 18:3618:36, 25 May 2022 Radulfon talk contribs m 15,955 bytes −32 The statements in the sentences I modified are only correct for heat pumps and not for refrigerators. Thus I removed the refrigerator references! undo

21 February 2022

• curprev 00:0600:06, 21 February 2022 Cewbot talk contribs m 15,987 bytes −15 Fix broken anchor: #Performance considerations→most alike anchor Heat pump#Performance undo

31 December 2021

• curprev 03:0303:03, 31 December 2021 Klaus Schmidt-Rohr talk contribs 16,002 bytes +36 Added the equation relating the two coefficients of performance. undo Tag: Visual edit
• curprev 02:5902:59, 31 December 2021 Klaus Schmidt-Rohr talk contribs 15,966 bytes +467 Corrected signs in the equations based on the books by Planck and Fermi as well the universal convention for heat. undo Tag: Visual edit

23 October 2021

• curprev 18:3318:33, 23 October 2021 Nyq talk contribs m 15,499 bytes 0 lc common nouns, adjusted wikilink undo Tags: Visual edit Mobile edit Mobile web edit Advanced mobile edit

1 October 2021

• curprev 03:3303:33, 1 October 2021 64.112.177.129 talk 15,499 bytes −1 No edit summary undo Tag: Manual revert
• curprev 03:3103:31, 1 October 2021 64.112.177.129 talk 15,500 bytes +1 No edit summary undo Tag: Reverted
• curprev 03:3103:31, 1 October 2021 64.112.177.129 talk 15,499 bytes 0 No edit summary undo Tag: Reverted

12 July 2021

• curprev 19:0019:00, 12 July 2021 AnomieBOT talk contribs m 15,499 bytes +15 Dating maintenance tags: {{Citation needed}} undo
• curprev 17:0017:00, 12 July 2021 66.244.232.106 talk 15,484 bytes +19 No edit summary undo

7 July 2021

• curprev 13:3813:38, 7 July 2021 Dolphin51 talk contribs m 15,465 bytes +10 →Improving COP: Wikilinked undo
• curprev 11:5811:58, 7 July 2021 WindTempos talk contribs 15,455 bytes −24 Reverting edit(s) by 203.192.219.84 (talk) to rev. 1031620798 by Arjayay: Vandalism (RW 16.1) undo Tags: RW Undo
• curprev 11:5711:57, 7 July 2021 203.192.219.84 talk 15,479 bytes +24 →Improving COP undo Tag: Reverted

2 July 2021

• curprev 17:0817:08, 2 July 2021 Arjayay talk contribs m 15,455 bytes −4 Stray word removed undo
• curprev 06:4606:46, 2 July 2021 Litesand talk contribs 15,459 bytes +223 I edited the bizarre statement that claims heat pumps operate at over 100% efficiency, this is incorrect. The COP usually exceeds 1 for refrigerators and heat pumps, but no heat engine can have a thermal efficiency of 100% or greater. This article could be improved, especially by someone with a degree in thermodynamics (and I don't have one). The net work, or efficiency of a refrigerator, should not be confused with coefficient of performance. undo

5 May 2021

• curprev 08:1808:18, 5 May 2021 Dolphin51 talk contribs m 15,236 bytes 0 Eliminated unnecessary capital letters in title. undo

28 April 2021

• curprev 04:5004:50, 28 April 2021 Kleinpecan talk contribs 15,236 bytes −21 Reverted 1 edit by Aariz2810 (talk): Spam undo Tags: Twinkle Undo
• curprev 03:5103:51, 28 April 2021 Aariz2810 talk contribs 15,257 bytes +21 →External links undo Tags: Reverted Mobile edit Mobile web edit

19 April 2021

• curprev 20:4120:41, 19 April 2021 WikiCleanerBot talk contribs m 15,236 bytes −2 v2.04b - Bot T20 CW#61 - Fix errors for CW project (Reference before punctuation) undo Tag: WPCleaner

8 April 2021

• curprev 14:0514:05, 8 April 2021 109.207.29.2 talk 15,238 bytes +177 →Theoretical Performance Limits: fixed error in COP example undo
• curprev 13:5413:54, 8 April 2021 109.207.29.2 talk 15,061 bytes −20 →Derivation: tidied layout and clarified title - this is not a derivation, it is an explanation of the theoretical limits to performance undo
• curprev 13:5013:50, 8 April 2021 109.207.29.2 talk 15,081 bytes +129 →Derivation undo
• curprev 13:4613:46, 8 April 2021 109.207.29.2 talk 14,952 bytes +38 →Derivation undo

29 March 2021

• curprev 07:4607:46, 29 March 2021 Pancho507 talk contribs 14,914 bytes +43 No edit summary undo Tags: Mobile edit Mobile web edit Advanced mobile edit
• curprev 06:1506:15, 29 March 2021 Pancho507 talk contribs 14,871 bytes +135 No edit summary undo Tags: Mobile edit Mobile web edit Advanced mobile edit

26 March 2021

• curprev 13:2413:24, 26 March 2021 Hellacioussatyr talk contribs m 14,736 bytes +10 →Improving COP undo Tag: Visual edit

21 March 2021

• curprev 08:1108:11, 21 March 2021 Kku talk contribs m 14,726 bytes +4 link air source heat pump using Find link undo

12 March 2021

• curprev 02:0102:01, 12 March 2021 Pancho507 talk contribs 14,722 bytes +66 No edit summary undo Tags: Mobile edit Mobile web edit Advanced mobile edit

11 March 2021

• curprev 07:5907:59, 11 March 2021 Cewbot talk contribs m 14,656 bytes +16 Fix broken anchor: 2016-01-24T20:11:50Z (VERY DIFFERENT 52>36) #Efficiency⇝Heat pump#Performance considerations undo