I want to find that what kind of standards are used from heat exchangers & how i can find that freely?
Because heat exchangers come in so many different configurations that there are few standards that cover all types. Associations such as the Tubular Exchanger Manufacturers Association do have standards for heat exchangers that fit their portion of the spectrum. In general most industrial heat exchangers also use the ASME pressure vessel code or similar standards for mechanical design. As previously stated, these standards are not free because it does cost the sponsors significant money to maintain and publish them. You can read to most of these type of documents if you have access to a university library or similar technical library.
its not easy to find free references... i suggest saudiaramco website... and better to buy a book for heat exchngers rather than searching the web.
