An algorithm for designing a TEMA ‘J’-shell and tube partial condenser

This paper presents an algorithm to design and calculate a rather infrequently used type of heat exchanger, the ‘BJM’ shell and tube partial condenser. The algorithm was developed in a project aimed at the recovery of water and energy in a chemical plant, where gases originated from drying processes contain a high quantity of water vapour with a temperature that allows the heating of some service flows. The heat transfer process implies the condensation of water vapour in the presence of non-condensable gases. Whereas the design procedure of this equipment has not yet become well established, the authors, using previous theoretical grounds, have developed a new algorithm.