Re: Good Hardware Tools

From	Chris <xxx.syseng.yyy@gfsys.co.uk>
Newsgroups	comp.arch.embedded
Subject	Re: Good Hardware Tools
Date	2020-11-30 15:41 +0000
Organization	Aioe.org NNTP Server
Message-ID	<rq33rn$qgd$1@gioia.aioe.org> (permalink)
References	(15 earlier) <meDwH.15542$Cc5.9524@fx36.iad> <0d830bba-f3af-4a55-835f-71893b42d38fn@googlegroups.com> <rpvn06$3bo$1@dont-email.me> <f65c49f0-dc0c-478b-9ca1-c19dcea071b0n@googlegroups.com> <zavrhjmncnay.qkm1hs0.pminews@nntp.aioe.org>

Show all headers | View raw

On 11/30/20 07:01, Mat Nieuwenhoven wrote:
> On Sun, 29 Nov 2020 11:00:36 -0800 (PST), Rick C wrote:
>
>> On Sunday, November 29, 2020 at 3:43:55 AM UTC-5, Tauno Voipio wrote:
>>> On 29.11.20 4.07, Rick C wrote:
>>>> On Saturday, November 28, 2020 at 8:57:43 PM UTC-5, Richard Damon wrote:
>>>>> On 11/28/20 6:16 PM, Rick C wrote:
>>>>>> On Saturday, November 28, 2020 at 3:53:57 PM UTC-5, Grant Edwards wrote:
>>>>>>> On 2020-11-28, Mat Nieuwenhoven<mni...@zap.a2000.nl>  wrote:
>>>>>>>> On Fri, 27 Nov 2020 06:58:53 -0800 (PST), Rick C wrote:
>>>>>>>>
>>>>>>>> <snip>
>>>>>>>>>
>>>>>>>>> How does your refrigerator control the temperatures of the two
>>>>>>>>> compartments when using a single compressor?
>>>>>>> Well, a lot of european refrigerators do have two compressors. I know
>>>>>>> mine does. There's no air connection between freezer and refrigerator
>>>>>>> and there are two completely separate thermostats.
>>>>>>>> I have not looked into it, but it does. The previous one (an 20+
>>>>>>>> years old Bosch) did it too.
>>>>>>> Maybe they had two compressors. I thought most Bosch ones did.
>>>>>>
>>>>>> That has to be an expensive refrigerator. Two of everything makes for a lot of works. I can't see the need. With the thermostat in the refrigerator and the evaporator around the freezer, the unit will run until the refrigerator is cold and by then the freezer will be adequately cold. That can be adjusted by adjusting the air flow between the two. I can't see adding a second compressor to take the place of an air damper.
>>>>>>
>>>>> You don't actually need a second compressor. You just need a seperate
>>>>> cooler coil to cool the refrigerator compartment, and control valves to
>>>>> select which cooling coils are being feed by the compressor based on the
>>>>> demands.
>>>>
>>>> That's not the issue. The issue is there is added cost with little gain.. Someone mentioned a unit with multiple freezer compartments. It would be a very specialized use to need multiple freezer compartments in a single refrigerator. None of that makes any sense to me.
>>>>
>>> There is the gain: you can keep the fridge slightly above freezing
>>> and the freeze side well frozen if there are two cooling systems.
>>> A single-compressor unit relies on suitable thermal leak out of
>>> the fridge side to keep the temperature difference between the
>>> compartments.
>>
>> Yes, an adjustable leak, although I think you are ignoring that the refrigerator compartment is where the thermostat is typically located.  The adjustment process is to set the temperature of the refrigerator and adjust the damper to control the portion of cooling that reaches the refrigerator compartment with the rest remaining to cool the freezer.  Adjust the damper to give the desired freezer temperature.
>>
>> The point is unless there is some reason why this won''t work in a particular case, the added cost of the multiple thermal zone is unwarranted.
>
> Well, one case is where you want seperate control in temperature of
> freeze and cool section. I've looked at a brochure, and in almost all
> cases the simpler fridges only let you adjust the temperature of the
> cooling secion. The freeze section is only specified as "3=1 stars"
> or so.
>
> Mat Nieuwenhoven
>
>

We have separate machines for fridge and freezer, which allows a lot
more choice of format and location. Freezer is in another room, with
the fridge under the worktop in the kitchen. If one fails, you don't
lose everything. Less efficient I guess, but more convenient. Both
are well over ten years old, but don't get obsessed over power
consumption...

Chris

Thread

Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-10-29 20:17 -0700
  Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-10-29 23:52 -0700
    Re: Good Hardware Tools Theo <theom+news@chiark.greenend.org.uk> - 2020-10-30 10:19 +0000
  Re: Good Hardware Tools Chris <xxx.syseng.yyy@gfsys.co.uk> - 2020-10-31 00:21 +0000
  Re: Good Hardware Tools Dave Nadler <drn@nadler.com> - 2020-10-30 17:56 -0700
    Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-10-30 20:40 -0700
  Re: Good Hardware Tools Philip Martel <pmartel@alum.mit.edu> - 2020-10-31 14:54 -0400
    Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-04 20:13 -0800
      Re: Good Hardware Tools kegs@provalid.com (Kent Dickey) - 2020-11-13 17:10 -0600
        Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-15 19:43 -0800
          Re: Good Hardware Tools Brett <ggtgp@yahoo.com> - 2020-11-16 19:31 +0000
            Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-17 01:50 -0800
              Re: Good Hardware Tools Stef <stef33d@yahooI-N-V-A-L-I-D.com.invalid> - 2020-11-17 11:14 +0100
                Re: Good Hardware Tools Brett <ggtgp@yahoo.com> - 2020-11-18 04:14 +0000
              Re: Good Hardware Tools George Neuner <gneuner2@comcast.net> - 2020-11-17 12:05 -0500
                Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-11-17 10:06 -0800
                Re: Good Hardware Tools George Neuner <gneuner2@comcast.net> - 2020-11-17 16:02 -0500
                Re: Good Hardware Tools Jim Jackson <jj@franjam.org.uk> - 2020-11-17 22:28 +0000
                Re: Good Hardware Tools David Brown <david.brown@hesbynett.no> - 2020-11-18 11:11 +0100
                Re: Good Hardware Tools Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2020-11-18 12:40 +0200
                Re: Good Hardware Tools Niklas Holsti <niklas.holsti@tidorum.invalid> - 2020-11-18 14:51 +0200
                Re: Good Hardware Tools Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2020-11-18 21:46 +0100
                Re: Good Hardware Tools David Brown <david.brown@hesbynett.no> - 2020-11-18 22:29 +0100
                Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-11-18 12:45 -0800
                Re: Good Hardware Tools Tom Gardner <spamjunk@blueyonder.co.uk> - 2020-11-18 21:08 +0000
                Re: Good Hardware Tools Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2020-11-19 00:35 +0100
                Re: Good Hardware Tools Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2020-11-18 16:12 -0500
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-18 17:30 -0800
                Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-11-18 23:36 -0800
                Re: Good Hardware Tools Jim Jackson <jj@franjam.org.uk> - 2020-11-19 22:31 +0000
                Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-11-19 14:43 -0800
                Re: Good Hardware Tools Jim Jackson <jj@franjam.org.uk> - 2020-11-20 22:13 +0000
                Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-11-20 18:01 -0800
                Re: Good Hardware Tools James Brakefield <jim.brakefield@ieee.org> - 2020-11-21 11:39 -0800
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-18 03:15 -0800
                Re: Good Hardware Tools David Brown <david.brown@hesbynett.no> - 2020-11-17 22:25 +0100
                Re: Good Hardware Tools Dave Nadler <drn@nadler.com> - 2020-11-17 16:30 -0500
                Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-11-17 14:18 -0800
            Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-23 13:39 +0100
              Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-23 07:49 -0800
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-24 08:53 +0100
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-24 10:46 -0800
                Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-11-24 13:46 -0800
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-27 08:11 +0100
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-27 06:58 -0800
                Re: Good Hardware Tools Richard Damon <Richard@Damon-Family.org> - 2020-11-27 10:17 -0500
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-27 08:04 -0800
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-28 17:04 +0100
                Re: Good Hardware Tools Don Y <blockedofcourse@foo.invalid> - 2020-11-28 09:54 -0700
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-28 09:05 -0800
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-29 17:30 +0100
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-29 11:10 -0800
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-30 08:19 +0100
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-30 07:46 -0800
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-12-06 17:55 +0100
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-12-06 15:04 -0800
                Re: Good Hardware Tools Mat Nieuwenhoven <mnieuw@zap.a2000.nl> - 2021-01-03 11:03 +0000
                Re: Good Hardware Tools Brett <ggtgp@yahoo.com> - 2021-01-04 09:03 +0000
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2021-01-04 04:09 -0800
                Re: Good Hardware Tools Mat Nieuwenhoven <mnieuw@zap.a2000.nl> - 2021-01-04 21:57 +0000
                Re: Good Hardware Tools Don Y <blockedofcourse@foo.invalid> - 2021-01-04 02:55 -0700
                Re: Good Hardware Tools Grant Edwards <invalid@invalid.invalid> - 2020-11-28 20:53 +0000
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-28 15:16 -0800
                Re: Good Hardware Tools Richard Damon <Richard@Damon-Family.org> - 2020-11-28 20:57 -0500
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-28 18:07 -0800
                Re: Good Hardware Tools Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2020-11-29 10:43 +0200
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-29 11:00 -0800
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-30 08:01 +0100
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-30 07:40 -0800
                Re: Good Hardware Tools Chris <xxx.syseng.yyy@gfsys.co.uk> - 2020-11-30 15:41 +0000
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-29 15:22 +0100
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-29 11:04 -0800
                Re: Good Hardware Tools Don Y <blockedofcourse@foo.invalid> - 2020-11-29 14:46 -0700
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-29 15:11 +0100
                Re: Good Hardware Tools Grant Edwards <invalid@invalid.invalid> - 2020-11-29 23:24 +0000
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-29 17:57 -0800
                Re: Good Hardware Tools "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-30 08:32 +0100
                Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-30 08:03 -0800
          Re: Good Hardware Tools Paul Rubin <no.email@nospam.invalid> - 2020-11-16 13:13 -0800
          Re: Good Hardware Tools kegs@provalid.com (Kent Dickey) - 2020-11-17 22:56 -0600
            Re: Good Hardware Tools Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-18 03:20 -0800

csiph-web