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Stirling Cycle Quiz


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  #1  
Old 04-01-2018, 03:46:12 PM
Brent Rowell Brent Rowell is offline
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Default Stirling Cycle Quiz

This section of the forum tends to get stale so here's a little quiz for you: What's the most common commercial use of the stirling cycle nowadays?
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Old 04-01-2018, 04:58:36 PM
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John Newman, Jr. John Newman, Jr. is offline
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Default Re: Stirling Cycle Quiz

Refrigeration or heating.
When driven by a motor, the hot cap will get either quite hot or cold, depending on direction of rotation.
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Old 04-02-2018, 10:26:35 PM
Brent Rowell Brent Rowell is offline
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Default Re: Stirling Cycle Quiz

Well John, you're at least half right. When you apply power to a stirling engine to run the normal cycle in reverse (power piston now leads the displacer by 90 degrees), the exposed cylinder (which is normally heated) now removes heat from the air around it. Please don't ask me how this works. These stirling 'cryocoolers' and are now used by the thousands in aerospace, defence, medicine, and science. They will cool down to extremely low temperatures: stirling freezers routinely keep temps at 100 below zero and can even reach much lower temps required for superconductivity. They have few moving parts, are maintenance free, don't use refrigerants, and are nearly silent.
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Old 04-03-2018, 12:51:40 PM
Andrew Mackey Andrew Mackey is offline
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Exclamation Re: Stirling Cycle Quiz

They are used in oxygen production as well. Some of your portable battery powered medical oxygen concentrators use them!
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Old 04-03-2018, 05:34:50 PM
Barnbikes Barnbikes is offline
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Default Re: Stirling Cycle Quiz

Most common noncommercial use of the stirling cycle engines nowadays?

Paper weights and dust collectors.
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Old 04-03-2018, 05:58:30 PM
Brent Rowell Brent Rowell is offline
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Default Re: Stirling Cycle Quiz

Please send me all your unwanted stirling engine paperweights and dust collectors.
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Old 04-07-2018, 08:49:25 AM
ChipTosser ChipTosser is offline
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Default Re: Stirling Cycle Quiz

I'm closer, to ship to. I'd even pay for the shipping!
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Old 04-07-2018, 12:14:21 PM
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Default Re: Stirling Cycle Quiz

Quote:
Originally Posted by Barnbikes View Post
Most common noncommercial use of the stirling cycle engines nowadays?

Paper weights and dust collectors.

i'll come pick them up
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