Hi azman, congratulations for your publication, I really liked your publication. haha I am a fan of heat transfer.
I made a similar publication recently, I urge you to visit it and leave me your comment. Thank you
https://steemit.com/steemstem/@engineer.jocs/fenomenos-de-transporte-transferencia-de-calor-intercambiadores-de-calor-y-como-se-come-eso