Forum: Fundamentals

  1. Sticky Thread Sticky: Refrigeration 101

    Started by Gary, 05-07-2009 05:21 PM
    5 Pages •
    1 2 3 4 5
    1 Attachment(s)
    • Replies: 201
    • Views: 238,981
    L-PLATES
    01-11-2011, 10:18 PM Go to last post

  2. Thumbs up Sticky Thread Sticky: Safety of Society - The Role of the Engineer

    Started by Josip, 17-05-2011 08:16 PM
    1 Attachment(s)
    • Replies: 4
    • Views: 27,646
    SeanB
    02-10-2011, 05:45 PM Go to last post

  1. How To Calculate PDU and Kw For Coldroom Without Software?

    Started by hongyunref, 23-04-2013 02:26 AM
    calculation, fundamentals
    • Replies: 5
    • Views: 3,549
    HVACRAU
    18-06-2013, 07:40 AM Go to last post

  2. Number of rows for cooling coil

    Started by lh.ahn84, 17-06-2013 02:32 AM
    • Replies: 1
    • Views: 3,072
    Magoo
    17-06-2013, 07:07 AM Go to last post

  3. Why Liquid Line Will Ice-Up Once The Liquid Pass Through The Expansion Valve?

    Started by hongyunref, 04-06-2013 05:08 AM
    expansion valve, fundamentals, liquid line
    • Replies: 5
    • Views: 2,944
    Peter_1
    16-06-2013, 11:36 AM Go to last post

  4. Sensible Heat ratio

    Started by lh.ahn84, 15-06-2013 01:51 AM
    • Replies: 5
    • Views: 4,436
    Magoo
    16-06-2013, 01:01 AM Go to last post

  5. On coil / off coil temperature

    Started by GIRI, 05-06-2013 07:22 AM
    • Replies: 6
    • Views: 54,351
    lh.ahn84
    15-06-2013, 01:26 PM Go to last post

  6. DX COil Sizing

    Started by lh.ahn84, 14-06-2013 06:43 AM
    • Replies: 0
    • Views: 1,640
    lh.ahn84
    14-06-2013, 06:43 AM Go to last post

  7. DX Evaporator

    Started by jamesk, 11-06-2013 07:08 PM
    • Replies: 11
    • Views: 4,240
    r.bartlett
    12-06-2013, 10:15 PM Go to last post

  8. Water volume for 500kW ACHE (Drycooler)

    Started by alexhk, 09-06-2013 02:01 PM
    • Replies: 2
    • Views: 1,720
    alexhk
    12-06-2013, 12:38 PM Go to last post

  9. Chilled Water Buffer Vessel Sizing

    Started by smc200276, 11-06-2013 11:34 AM
    buffer, chiller, sizing
    • Replies: 1
    • Views: 2,600
    HVACRsaurus
    11-06-2013, 12:49 PM Go to last post

  10. Question how to calculate the suction,discharge,and liquid line capacities

    Started by Jiazi, 07-06-2013 03:24 PM
    4 Attachment(s)
    • Replies: 1
    • Views: 2,536
    Jiazi
    08-06-2013, 03:58 AM Go to last post

  11. Help explaining a weird phenomenon in a heat pump!!

    Started by sebasvelez, 07-06-2013 06:27 PM
    1 Attachment(s)
    • Replies: 1
    • Views: 1,710
    Peter_1
    07-06-2013, 08:06 PM Go to last post

  12. Bitzer Motor 1 vs Motor 2

    Started by jax1, 29-05-2013 09:08 PM
    lt compressor vs mt
    • Replies: 2
    • Views: 2,393
    Sandro Baptista
    07-06-2013, 10:01 AM Go to last post

  13. water cooled condenser & water cooled iol cooler..

    Started by ah fai, 01-06-2013 06:34 PM
    • Replies: 1
    • Views: 1,606
    Done it all
    07-06-2013, 07:40 AM Go to last post

  14. C.o.p

    Started by jdunc2301, 05-06-2013 09:04 PM
    • Replies: 3
    • Views: 1,965
    anil130
    06-06-2013, 03:50 PM Go to last post

  15. digital vac stat

    Started by question mark, 22-05-2013 11:50 AM
    • Replies: 6
    • Views: 3,951
    FreezerGeezer
    23-05-2013, 11:35 AM Go to last post

  16. Question Anyone interested in helping me with my project? -40c cold plate

    Started by brad11160, 14-05-2013 12:08 PM
    4 Attachment(s)
    • Replies: 23
    • Views: 7,954
    Tesla
    22-05-2013, 12:17 AM Go to last post

  17. Internal Pressure Relief

    Started by bwd111, 16-05-2013 01:10 AM
    • Replies: 3
    • Views: 1,887
    sendhilkmar
    20-05-2013, 12:26 PM Go to last post

  18. Moved: Any ideas on my design for Flooded evaporator?

    Started by brad11160, 19-05-2013 08:30 AM
    •  
    •  

  19. pump down / txv

    Started by jweins1, 17-05-2013 05:08 PM
    • Replies: 2
    • Views: 2,256
    Brian_UK
    17-05-2013, 09:48 PM Go to last post

  20. Calculation of the cooling tower evaporation

    Started by Kakolio, 13-05-2013 06:17 AM
    • Replies: 5
    • Views: 19,221
    Josip
    14-05-2013, 08:14 PM Go to last post

  21. Confusing The Calculation Part Between Refrigerant's Superheat and Sub cooling

    Started by hongyunref, 17-04-2013 06:10 AM
    fundamentals, humidity, humidity in coldroom, sub-cooling, superheat
    • Replies: 5
    • Views: 2,989
    Brian_UK
    13-05-2013, 10:51 PM Go to last post

  22. frost on compressor

    Started by godspeed, 12-03-2013 08:11 AM
    • Replies: 5
    • Views: 3,945
    1mikeefc1
    13-05-2013, 05:58 PM Go to last post

  23. Pressure Balance

    Started by sameem, 12-05-2013 02:04 PM
    • Replies: 0
    • Views: 1,350
    sameem
    12-05-2013, 02:04 PM Go to last post

  24. When will a tube explode?

    Started by Peter_1, 15-04-2013 08:38 PM
    1 Attachment(s)
    • Replies: 14
    • Views: 3,987
    Chef
    12-05-2013, 04:44 AM Go to last post

  25. phtx valve question

    Started by Luigi1960, 11-05-2013 12:48 PM
    • Replies: 2
    • Views: 1,573
    Luigi1960
    11-05-2013, 08:10 PM Go to last post

  26. Problem - Liquid Unable To Become Vapor During Suction

    Started by hongyunref, 04-05-2013 05:06 AM
    compressor, fundamentals, liquid, vapor
    • Replies: 6
    • Views: 2,967
    nike123
    11-05-2013, 07:26 AM Go to last post

  27. Building a small cold room in a bakery

    Started by Twigdip, 29-04-2013 12:14 PM
    • Replies: 6
    • Views: 3,480
    smpsmp45
    11-05-2013, 06:08 AM Go to last post

  28. Help needed on Sequence of operation on a Cold-Storage

    Started by sriji, 08-05-2013 07:33 AM
    • Replies: 6
    • Views: 2,841
    sriji
    10-05-2013, 07:12 AM Go to last post

  29. Local and remote control of air conditioning by BRC1D52 controllers

    Started by Griffin, 07-05-2013 12:08 PM
    • Replies: 6
    • Views: 3,762
    The Viking
    09-05-2013, 05:25 PM Go to last post

  30. Trouble shooting

    Started by todd86, 04-05-2013 03:41 PM
    • Replies: 0
    • Views: 1,228
    todd86
    04-05-2013, 03:41 PM Go to last post

  31. inverter systems

    Started by question mark, 23-04-2013 12:26 PM
    • Replies: 8
    • Views: 3,101
    install monkey
    25-04-2013, 11:55 PM Go to last post

  32. ice on suction line

    Started by question mark, 24-04-2013 12:48 PM
    • Replies: 4
    • Views: 2,851
    sokold
    25-04-2013, 04:34 PM Go to last post

  33. Arrow Suction line riser

    Started by nh3simman, 25-04-2013 10:23 AM
    • Replies: 1
    • Views: 2,293
    desA
    25-04-2013, 12:50 PM Go to last post

  34. txvalve oriface

    Started by question mark, 24-04-2013 11:45 AM
    • Replies: 3
    • Views: 1,827
    The Viking
    25-04-2013, 09:54 AM Go to last post

  35. ahu coil tev

    Started by martinw58, 23-04-2013 09:03 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 3,304
    frank
    24-04-2013, 09:33 PM Go to last post

  36. fresh air

    Started by question mark, 23-04-2013 12:37 PM
    • Replies: 4
    • Views: 2,110
    install monkey
    23-04-2013, 07:29 PM Go to last post

  37. Lightbulb Synthetic Refrigerant Additive

    Started by frostybob76, 16-04-2013 02:12 AM
    energy efficiency, leed points, refrigerant additives, sra
    • Replies: 9
    • Views: 8,146
    Grizzly
    23-04-2013, 05:51 AM Go to last post

  38. How To Calculate RH% ?

    Started by hongyunref, 16-04-2013 09:34 AM
    fundamentals, humidity
    • Replies: 2
    • Views: 4,260
    Brian_UK
    16-04-2013, 11:42 PM Go to last post

  39. Oil charge

    Started by matijaZGB, 15-04-2013 08:21 AM
    oil charge, sabroe 2 Attachment(s)
    • Replies: 0
    • Views: 1,696
    matijaZGB
    15-04-2013, 08:21 AM Go to last post

  40. Mollier charts

    Started by RIK-MAY, 27-03-2013 01:57 PM
    1 Attachment(s)
    • Replies: 12
    • Views: 5,331
    jamesk
    15-04-2013, 04:16 AM Go to last post

  41. chill room drying

    Started by ah fai, 10-04-2013 06:54 PM
    • Replies: 5
    • Views: 1,860
    chemi-cool
    13-04-2013, 07:18 AM Go to last post

  42. Does Low and High pressure vary under different operating condition

    Started by Manta, 11-04-2013 02:57 AM
    cop, evaporation temperature, low pressure
    • Replies: 1
    • Views: 1,324
    Peter_1
    11-04-2013, 06:26 AM Go to last post

  43. Centigrade !!!

    Started by The Viking, 10-04-2013 12:58 AM
    • Replies: 9
    • Views: 3,475
    The Viking
    11-04-2013, 12:01 AM Go to last post

  44. Ammonia evaporative condenser

    Started by ah fai, 10-04-2013 06:40 PM
    • Replies: 0
    • Views: 1,595
    ah fai
    10-04-2013, 06:40 PM Go to last post

  45. Typical U-value of Drycooler/Air Cooled Heat Exchanger

    Started by alexhk, 10-04-2013 01:14 AM
    • Replies: 0
    • Views: 1,906
    alexhk
    10-04-2013, 01:14 AM Go to last post

  46. charging window uints/cylinder freezing

    Started by standardmoose, 02-04-2013 07:55 AM
    • Replies: 6
    • Views: 2,396
    joe-ice
    06-04-2013, 08:44 PM Go to last post

  47. Ammonia condensing pressure

    Started by suresh77babu, 20-01-2013 03:48 PM
    • Replies: 5
    • Views: 5,634
    Magoo
    02-04-2013, 01:14 AM Go to last post

  48. difference capacity unit

    Started by kefah, 28-03-2013 11:58 AM
    1 Attachment(s)
    • Replies: 6
    • Views: 2,328
    kefah
    31-03-2013, 07:53 PM Go to last post

  49. Sub cooled r22 still flashing?

    Started by Drew, 28-02-2013 10:29 AM
    2 Pages •
    1 2
    • Replies: 53
    • Views: 11,255
    Drew
    26-03-2013, 09:55 AM Go to last post

  50. Desuperheating by liquid injection

    Started by R717, 11-03-2013 11:20 AM
    1 Attachment(s)
    • Replies: 47
    • Views: 13,575
    Segei
    26-03-2013, 01:04 AM Go to last post

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