Search found 13 matches

by Spacefog_
Wed May 15, 2024 4:02 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Does a medium sized SE exist that could charge 12 V car battery properly?
Replies: 14
Views: 8056

Re: Does a medium sized SE exist that could charge 12 V car battery properly?

Battery charging works best at amperages reflecting the capacity of the battery. Car batteries at around 10 amps. 2 is considered a finishing or equalizing charge rate. Less would be a "trickle charge", at best. Trickle charge isn't usually enough for a good charge. Furthermore, lead acid...
by Spacefog_
Wed May 15, 2024 4:00 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Does a medium sized SE exist that could charge 12 V car battery properly?
Replies: 14
Views: 8056

Re: Does a medium sized SE exist that could charge 12 V car battery properly?

@Tom @Fool

Agree with Fool, I read that for optimal charging, one should aim for a voltage between 13.8 and 14.4 volts, known as the 'float' or 'trickle charge' voltage, to safely and efficiently charge a 12V car battery.
by Spacefog_
Wed May 15, 2024 3:53 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Does a medium sized SE exist that could charge 12 V car battery properly?
Replies: 14
Views: 8056

Re: Does a medium sized SE exist that could charge 12 V car battery properly?

8 amps would be a good charge rate for a 12V car battery. That's 12*8 = 96 Watts An unpressurised SE using air making 100W might be fairly chunky unless its of Andy Ross level sophistication. Possibly bigger and heavier than my 40 year old Honda EG550 sidevalve generator, which will make 450W conti...
by Spacefog_
Wed May 15, 2024 3:48 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Does a medium sized SE exist that could charge 12 V car battery properly?
Replies: 14
Views: 8056

Re: Does a medium sized SE exist that could charge 12 V car battery properly?

8 amps would be a good charge rate for a 12V car battery. That's 12*8 = 96 Watts An unpressurised SE using air making 100W might be fairly chunky unless its of Andy Ross level sophistication. Possibly bigger and heavier than my 40 year old Honda EG550 sidevalve generator, which will make 450W conti...
by Spacefog_
Sat Mar 09, 2024 8:06 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Repair of forums.
Replies: 5
Views: 3631

Re: Repair of forums.

Thanks!
by Spacefog_
Sat Mar 09, 2024 7:39 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to reduce the noise?
Replies: 8
Views: 3532

Re: How to reduce the noise?

Tom it seems we're back in business :)

Not only were the bot removed, you can now post again, and it seems the phpbb board was updated.
by Spacefog_
Sat Mar 09, 2024 7:34 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Does a medium sized SE exist that could charge 12 V car battery properly?
Replies: 14
Views: 8056

Does a medium sized SE exist that could charge 12 V car battery properly?

If not, how many small SE would it take to do so? Looking for things on the market today, things that have been built in the past, DIY's; anything. Working fluid being air (preferably not pressurized).
by Spacefog_
Thu Mar 07, 2024 6:55 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to reduce the noise?
Replies: 8
Views: 3532

Re: How to reduce the noise?

Ok thanks for letting me know.

Oh, how do you know it's a spam bot post?
by Spacefog_
Thu Mar 07, 2024 4:52 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to reduce the noise?
Replies: 8
Views: 3532

Re: How to reduce the noise?

I also get this message when submitting [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_messenger.php on line 506: count(): Parameter must be an array or an object that implements Countable [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 1836: Cannot modify head...
by Spacefog_
Thu Mar 07, 2024 4:44 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to reduce the noise?
Replies: 8
Views: 3532

Re: How to reduce the noise?

Can I ask for a weird favor? I must be doing something wrong but it seems I can not create a new post (despite having permission to do so), nor can I contact the mod/admin. I have cleared cache, deleted the board cookies, restarted, logged out and in again; disabled extensions. The main issue is tha...
by Spacefog_
Wed Mar 06, 2024 9:37 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to reduce the noise?
Replies: 8
Views: 3532

Re: How to reduce the noise?

Thanks guys.
by Spacefog_
Sun Feb 11, 2024 12:09 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: How to reduce the noise?
Replies: 8
Views: 3532

How to reduce the noise?

Are there any examples of a Stirling engine being enclosed with something to suppress the sound from it?