Search found 5 matches

by fvnorman
Tue Jul 14, 2009 1:49 pm
Forum: Power-producing Stirling Engines
Topic: Stirling generator
Replies: 1
Views: 10280

Response to Stirling generator

<r>I have a page on Stirling engine generators.<br/> <br/> <URL url="http://newenergydirection.com/blog/2009/06/stirling-engine-generator/"><LINK_TEXT text="http://newenergydirection.com/blog/2009 ... generator/">http://newenergydirection.com/blog/2009/06/stirling-engine-generator/</LINK_TEXT></URL>...
by fvnorman
Tue Jul 14, 2009 1:40 pm
Forum: Power-producing Stirling Engines
Topic: What equation would be used to size a Stirling engine
Replies: 1
Views: 10314

Response to What equation would be used to size a Stirling engine

<r>You can use the Beale formula to estimate power to a first approximation. You input the mean engine pressure and the swept volume of the pistons to get the power.<br/> <br/> Torque is simply (power)/(2*3.14158*freq), where freq is the engine rotational speed in Hz. If you input power in watts, th...
by fvnorman
Tue Jul 14, 2009 9:21 am
Forum: Power-producing Stirling Engines
Topic: Looking for a Good source of suitable power pistons & cylinders
Replies: 1
Views: 9612

Response to Looking for a Good source of suitable power pistons & cylinders

<t>How about a V-type air compressor. It already has an alpha-configuration where the pistons have a phase difference of 90 degrees. That takes care of the drive mechanism and the piston/cylinder combo you're looking for.<br/> <br/> But you'd probably have to replace the piston rings with proper sea...
by fvnorman
Mon Jun 22, 2009 9:05 pm
Forum: Power-producing Stirling Engines
Topic: Efficiency Comparisons between Alpha, Beta and Gamma Engines
Replies: 2
Views: 14121

Response to Efficiency Comparisons between Alpha, Beta and Gamma Engines

<r>Hi Mario,<br/> <br/> Alpha, beta, and gamma engines are equally efficient in theory. But for practical reasons there may be small differences in efficiency, related to limits imposed by manufacturing, material, and so on. But I think it's best to focus on the engine that is easiest for you to mak...
by fvnorman
Mon Apr 20, 2009 6:49 pm
Forum: Power-producing Stirling Engines
Topic: So You Want to Build a Stirling Engine ?
Replies: 2
Views: 12623

Response to So You Want to Build a Stirling Engine ?

<r>I just signed up yesterday so this will be my first post. <br/> <br/> The complete answer to this person's questions is not possible in a post. However, I'll do my best to answer what I can:<br/> <br/> "1. How do you size the engine?"<br/> <br/> One of the best ways is to first use the Beale form...