Monday, Nov 14, 2005 at 14:47
NN, I asked you a very simple question
and you were not abusive, thanks… :-))
NN said.. “I will tell you, it stops the compressor from short cycling as the bigger the product load the longer it runs to pull down but once it achieves temperature the product HOLDS the cabinet at a LOWER temperature LONGER. Mainey are you saying that for the tests to be fair it should have been arranged so that each fridge had the same amount of product ratio based on cabinet size?
If so, it’s about the first time I am in accord with you”
(NN, Yes, that is what I have said, good to see we can reply without arguing)
NN said.. “But I’m confused, if you know the tests carried out were not a true and realistic method of testing such items, why didn’t you just say so in your opening post? rather than letting us believe that the tests will tell all, I refer you to this statement of yours “Simply because some 'people' would not believe the results if I posted them here and now”…..
Now your telling us they, the tests, are a load of crock sheit”
NN, yes I am
I invite you as a qualified Fridge Mechanic to comment on the test procedures used.
That’s why I called it an “UN-believable fridge test”, with the UN in caps :-)))
Un-fortunately I also assumed people would pick up on the “UN” and see the test for what it is UN-believable, UN-realistic and UN-obtainable in the bush.
Question;
does an EvaKool run at 53 Amps daily and the Waeco at 62 Amps daily, if NOT then the test is UN-realistic and UN-true, and the reason the test results are so high is simply because the tests were not REALISTIC and relevant to the size capacity of the fridges involved, as I said, if you buy a 80 Ltr fridge you put more than a packet of ‘peas’ into the freezer section, everyone knows to get a realistic battery life you put food or even drink bottles filled with water into the fridge freezer, as it will assist to hold the temperature lower and therefore will also conserve
battery power.
If they do use that power then I’m bewildered as their websites don’t state that figure!
NN you said; “And they have used mathematics to reach conclusions …?
This ain’t right, not fair at all.
One must use actual MEASURED currents and CERTIFIED instruments at that.
Mainey you must agree, using OEM data and extrapolating such data, to reach conclusions is simply “pulling the wool over our eyes” rather testing the actual Equipment, meaning their fridge Certified Tests will tell us!”
Ummm, NN, yes that’s what I have said
Quote from article p71.. We elected to use calibrated shunts, which work by measuring resistance, the positive wire from each fridge was connected to one end with the other going to it’s power supply. The small wires coming off each are 4mm sq dual core running to a Hoiki data logger which records the resistance in milliohms and then using “Ohm’s law” we were able to CALCULATE the amount the amount of power each fridge was consuming.
The question I asked “is a packet of peas a realistic test method, and if you (NN) would actually test a F/F in that way? as I believe you would actually put a realistic amount of food into the Freezer to obtain a Realistic test result…” as I have previously posted & without a fight or argument on my mind, and I believe your answer would be a resounding … No.
* * * * *
Another very IMPORTANT point that has not been picked up by any poster to this ‘useless’ thread is the Battery voltage used in the UN-real test was actually PRE-SET to a CONSTANT 13.8 Volts, yes the
battery power stays continuously at 13.8 volts, which as anyone with any intellect will confirm is an almost IMPOSSIBLE feat to be attained permanently at a
camp site with a fridge running, you would need a generator to be running constantly, yes day & night, as the 12v Danfoss (and probably also the Engel) compressor, will definitely loose refrigerant pumping capability as the available battery voltage drops which will cause the compressor to run slower, therefore it pumps less refrigerant per hour and the fridge temp actually raises instead of getting colder.
I believe the test criteria are absolutely UN-obtainable in the bush and totally UN-realistic, giving illusory results, hence the term “UN-believable” fridge test results was used.
Mainey… qualified ?
FollowupID:
393027