inreeltrouble Posted June 30, 2009 Share Posted June 30, 2009 Well after my heat exchanger went bad, I decided to see if i could fix myself, and found that the baffles inside are what caused it to fail they were never soldered to the baffles causing them to rub and eventually cut through them. that is why so many leaks.. well i want to use 3/8 o.d. tube inside this time but there was 74 1/4 o.d. tube before, i was wondering if anyone knows if using 3/8 tubes because there will be less tubes if it would cool enough to work. or will that transfer enough heat to do the job. Link to comment Share on other sites More sharing options...
1mainiac Posted June 30, 2009 Share Posted June 30, 2009 Well I don't have a engineering degree but my gut feeling is no one reason for the smaller tubes is they reduce the flow thru each tube allowing for more heat transfer. Even the huge heat exchangers we used on big ships have small tubes in them. Link to comment Share on other sites More sharing options...
Midway97 Posted June 30, 2009 Share Posted June 30, 2009 More smaller tubes increase surface area thereby increasing heat transfer. Link to comment Share on other sites More sharing options...
emptyhanded Posted July 1, 2009 Share Posted July 1, 2009 textured tube not only increases surface area due to enhanced surface area, the texture helps with fouling -- i have co authored a paper on textured tubes that was released in the UK If I cant help me buddy has a PHD on heat transfer Link to comment Share on other sites More sharing options...
inreeltrouble Posted July 1, 2009 Author Share Posted July 1, 2009 Thanks for the feed back guys, not sure if it will work but I finished it yesterday with the 3/8 o.d. tube, but i also added baffles to slow and make the water turbulent when going through. So maybe just maybe it will work. Thanks for all the posts. Link to comment Share on other sites More sharing options...
inreeltrouble Posted July 13, 2009 Author Share Posted July 13, 2009 Shoould have listened, the 3/8 tube would not cool it effectively enough to work, woulod keep cool trolling but not trying to run anywhere so back to the drawing board.... remade the entire inside and used 1/4 o.d. tube 72 tubes total and made baffles, finished sat. and installed works great..whoa whoo. so after some time and about 100.00 bucks the inreeltrouble is back in the water. Thanks Again forthe input Guys should have used 1/4 in the first time. Link to comment Share on other sites More sharing options...
GLF Posted July 13, 2009 Share Posted July 13, 2009 Shoould have listened, the 3/8 tube would not cool it effectively enough to work, woulod keep cool trolling but not trying to run anywhere so back to the drawing board.... remade the entire inside and used 1/4 o.d. tube 72 tubes total and made baffles, finished sat. and installed works great..whoa whoo. so after some time and about 100.00 bucks the inreeltrouble is back in the water. Thanks Again forthe input Guys should have used 1/4 in the first time. Glad to hear you got your beat fixed. Link to comment Share on other sites More sharing options...
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