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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: 233,164
    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: 27,016
    SeanB
    02-10-2011, 05:45 PM Go to last post

  1. Heat load calculation

    Started by anish, 20-07-2016 07:45 PM
    • Replies: 1
    • Views: 1,236
    The Viking
    20-07-2016, 10:20 PM Go to last post

  2. Post Non-constant refrigerant feeding in the liquid line

    Started by mrr, 14-07-2016 07:31 AM
    instability, liquid line, refrigerant
    • Replies: 8
    • Views: 2,290
    mrr
    17-07-2016, 11:04 PM Go to last post

  3. Liquid line drier sizing

    Started by WCEbloke, 15-07-2016 06:14 AM
    • Replies: 3
    • Views: 2,367
    sendhilkmar
    15-07-2016, 12:19 PM Go to last post

  4. Solenoid Valve on suction side of Evoperator

    Started by skhan855, 08-07-2016 04:58 PM
    • Replies: 0
    • Views: 1,181
    skhan855
    08-07-2016, 04:58 PM Go to last post

  5. Minimum normal suction pressure for R134a chiller

    Started by rallas, 10-02-2016 04:21 PM
    • Replies: 12
    • Views: 19,396
    airtrackinc
    26-06-2016, 01:48 AM Go to last post

  6. Design thoughts for a temperature/humidity controlled test chamber.

    Started by ridingkxm, 17-06-2016 07:37 PM
    • Replies: 0
    • Views: 1,157
    ridingkxm
    17-06-2016, 07:37 PM Go to last post

  7. Lightbulb Some technical questions

    Started by Fakhr E Alam, 29-03-2016 08:32 AM
    2 Attachment(s)
    • Replies: 15
    • Views: 4,097
    sterl
    17-06-2016, 07:34 PM Go to last post

  8. Post subcooling value and condensing split temperatures

    Started by mrr, 15-06-2016 01:10 PM
    split temperature, subcooling
    • Replies: 2
    • Views: 1,733
    sterl
    17-06-2016, 07:04 PM Go to last post

  9. Blast Chill

    Started by Big Frank, 08-06-2016 10:43 PM
    • Replies: 1
    • Views: 2,032
    frank
    15-06-2016, 09:18 PM Go to last post

  10. Condensation on glass door showcase

    Started by Aria, 01-03-2016 03:31 AM
    • Replies: 5
    • Views: 2,333
    Gary
    07-06-2016, 04:37 PM Go to last post

  11. Defrost drain line (& heater)

    Started by Greenbeast, 04-06-2016 09:53 PM
    • Replies: 6
    • Views: 2,380
    Greenbeast
    05-06-2016, 07:26 PM Go to last post

  12. Question Vertical Freezer.

    Started by coolyasir, 02-06-2016 04:23 PM
    expansion valve, freezer, lbp compressor, r404a
    • Replies: 0
    • Views: 1,381
    coolyasir
    02-06-2016, 04:23 PM Go to last post

  13. Correct Levels on Gauge

    Started by DaisyIces, 14-05-2016 09:10 PM
    freezer gauge, gas levels, pressure levels 1 Attachment(s)
    • Replies: 13
    • Views: 3,361
    DaisyIces
    14-05-2016, 10:54 PM Go to last post

  14. charging small commercial systems

    Started by StuartF84, 04-05-2016 07:04 PM
    • Replies: 8
    • Views: 2,312
    StuartF84
    05-05-2016, 12:36 AM Go to last post

  15. absorption cycle with low generator temperature ?

    Started by rnrajan, 28-04-2016 08:19 PM
    nh3-h2o, vapor absorption
    • Replies: 2
    • Views: 1,354
    rnrajan
    02-05-2016, 08:31 AM Go to last post

  16. Hey guys, how does a blast chiller work compared to a fridge?

    Started by Steffus, 19-04-2016 12:37 PM
    blast chiller, compressor, difference
    • Replies: 6
    • Views: 14,869
    chemi-cool
    28-04-2016, 10:24 AM Go to last post

  17. Is it possible to build a custom blast chiller without beeing a professional?

    Started by Steffus, 26-04-2016 10:20 AM
    blast chiller, condensing unit, diy
    • Replies: 2
    • Views: 1,485
    The Viking
    26-04-2016, 11:51 PM Go to last post

  18. Cooling Tower CFM Per Ton

    Started by afak, 23-04-2016 08:37 PM
    • Replies: 3
    • Views: 5,272
    Josip
    25-04-2016, 07:34 AM Go to last post

  19. Compressor cooling capacity

    Started by mankam, 22-04-2016 01:44 PM
    • Replies: 1
    • Views: 1,553
    Josip
    22-04-2016, 02:31 PM Go to last post

  20. Design temperatures in a cascade NH3/CO2 system

    Started by John Anton, 20-04-2016 02:24 PM
    cascade, co2, compressor pressure, compressor temperature, nh3
    • Replies: 2
    • Views: 1,563
    John Anton
    21-04-2016, 09:39 AM Go to last post

  21. Will this work?

    Started by Contactor, 12-04-2016 10:28 PM
    1 Attachment(s)
    • Replies: 8
    • Views: 2,213
    Glenn Moore
    14-04-2016, 12:52 AM Go to last post

  22. How to test a stored "pumped down" condensing unit.

    Started by kengineering, 17-02-2016 04:46 PM
    • Replies: 3
    • Views: 2,027
    chemi-cool
    13-04-2016, 03:42 PM Go to last post

  23. Leak detection on a tiny system

    Started by BradC, 09-04-2016 12:14 PM
    • Replies: 15
    • Views: 2,820
    mikeref
    13-04-2016, 09:40 AM Go to last post

  24. Calculation on chillers

    Started by Lundh, 31-03-2016 07:46 AM
    • Replies: 6
    • Views: 2,580
    Lundh
    04-04-2016, 07:08 PM Go to last post

  25. Booster compressor Relief valve

    Started by Hoon, 28-03-2016 12:11 AM
    booster relief valve 1 Attachment(s)
    • Replies: 7
    • Views: 2,138
    RANGER1
    29-03-2016, 10:05 PM Go to last post

  26. Discharge pressure lower limit

    Started by mankam, 23-03-2016 10:49 PM
    discharge pressure
    • Replies: 2
    • Views: 1,524
    Grizzly
    24-03-2016, 06:16 AM Go to last post

  27. Danfoss BD35 with a TXV/TEV ?

    Started by Typhoon, 21-03-2016 02:06 PM
    • Replies: 6
    • Views: 2,114
    mikeref
    23-03-2016, 08:50 AM Go to last post

  28. Copeland EVI (Enhanced vapour injection)

    Started by jdunc2301, 17-03-2016 09:57 PM
    • Replies: 4
    • Views: 2,969
    jdunc2301
    20-03-2016, 02:59 PM Go to last post

  29. Flower cooler

    Started by hollow, 03-03-2016 08:16 PM
    • Replies: 8
    • Views: 2,742
    mikeref
    07-03-2016, 08:55 AM Go to last post

  30. Low back pressure compressor (LBP) in high back pressure system (HBP)

    Started by Bushmenass, 03-03-2016 09:47 AM
    • Replies: 2
    • Views: 1,746
    nike123
    04-03-2016, 07:14 AM Go to last post

  31. Grasso 2 stage package

    Started by ebaid, 28-02-2016 05:06 PM
    • Replies: 4
    • Views: 1,752
    RANGER1
    01-03-2016, 12:38 AM Go to last post

  32. Placement of blowers

    Started by mechman, 29-02-2016 06:15 PM
    • Replies: 1
    • Views: 1,285
    Glenn Moore
    29-02-2016, 08:07 PM Go to last post

  33. Defrost calculation

    Started by mechman, 24-02-2016 12:43 PM
    • Replies: 2
    • Views: 2,523
    mechman
    29-02-2016, 06:10 PM Go to last post

  34. Thumbs up Ammonia

    Started by maverick, 24-02-2016 11:22 AM
    • Replies: 4
    • Views: 1,777
    Magoo
    25-02-2016, 02:12 AM Go to last post

  35. Power factor for 220 single phase Copeland compressor sealed

    Started by Desertdog, 19-02-2016 04:28 AM
    • Replies: 4
    • Views: 2,366
    chilliwilly
    20-02-2016, 12:51 PM Go to last post

  36. Frost Heave Prevention and Floor Insulation in Cold Rooms

    Started by Chris White, 11-02-2016 11:18 AM
    chiller, cold room, coldroom, freezer
    • Replies: 5
    • Views: 3,626
    Chris White
    15-02-2016, 11:32 AM Go to last post

  37. 3GS vs r134 in a noisy car ac compressor

    Started by pcruzn, 13-02-2016 03:04 PM
    • Replies: 5
    • Views: 2,021
    BradC
    15-02-2016, 08:24 AM Go to last post

  38. compressor built for 50 hertz when operated at 60 hertz.

    Started by Elrasheed, 10-02-2016 01:52 PM
    • Replies: 2
    • Views: 1,423
    Kenneth199
    10-02-2016, 06:30 PM Go to last post

  39. Request Help

    Started by hvacer, 05-02-2016 07:36 PM
    • Replies: 2
    • Views: 1,579
    hvacer
    06-02-2016, 09:06 PM Go to last post

  40. Taking care of condensation in DIY Wine Cooler

    Started by roosm, 02-02-2016 06:29 PM
    • Replies: 4
    • Views: 1,849
    Kenneth199
    04-02-2016, 02:31 PM Go to last post

  41. Brazing technique

    Started by Aria, 28-12-2015 06:13 AM
    2 Attachment(s)
    • Replies: 9
    • Views: 3,474
    chemi-cool
    08-01-2016, 08:38 AM Go to last post

  42. Effect brazing steel-copper with R-600 application

    Started by Aria, 01-04-2015 07:07 AM
    • Replies: 8
    • Views: 3,370
    Aria
    30-12-2015, 08:03 AM Go to last post

  43. Winter - Low Head Pressure

    Started by skhan855, 24-12-2015 08:22 PM
    • Replies: 6
    • Views: 2,457
    Segei
    30-12-2015, 01:25 AM Go to last post

  44. system without refrigerant

    Started by wutomo, 01-11-2015 02:02 AM
    • Replies: 6
    • Views: 2,627
    vikky1971
    26-12-2015, 06:11 PM Go to last post

  45. VSD's and their Drive Belts.

    Started by Grizzly, 06-12-2015 06:46 AM
    • Replies: 14
    • Views: 3,896
    RANGER1
    15-12-2015, 07:50 AM Go to last post

  46. Refrigeration

    Started by Allu Phanindra, 26-11-2015 01:49 AM
    • Replies: 4
    • Views: 2,475
    mikeref
    27-11-2015, 09:12 AM Go to last post

  47. Designing a Condenser

    Started by skhan855, 12-04-2015 09:29 AM
    2 Attachment(s)
    • Replies: 5
    • Views: 3,331
    haris
    16-11-2015, 02:31 PM Go to last post

  48. Exclamation Reducing diameter of rising suction pipe for oil return

    Started by Contactor, 30-10-2015 05:57 PM
    • Replies: 9
    • Views: 3,040
    Magoo
    08-11-2015, 11:22 PM Go to last post

  49. Cleaning of Ammonia system after installation

    Started by skhan855, 23-10-2015 03:16 PM
    • Replies: 12
    • Views: 3,153
    Glenn Moore
    26-10-2015, 09:04 PM Go to last post

  50. Single stage -40 °C

    Started by Sawzer, 16-09-2015 03:20 PM
    • Replies: 8
    • Views: 5,323
    sterl
    02-10-2015, 04:32 PM Go to last post

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