Software for shell & tube calculation

Hi friends,

Do you know any free software for calculation shell and tube heat-exchanger ?

Sincerely yours.

Have you looked on internet?

http://www.webbusterz.com/shell-tube...hanger-design/

this is cheaper software



http://www.heat-exchangers-software....eat-exchanger/

Dear Friends,

Thanks for your help. I found them during surfing internet, I thought maybe there is small and free software for calculation.

Sincerely yours.