L. P MACIEL, R. J ZEMP, Retrofit of heat exchangers using tube inserts, Blucher Chemical Engineering Proceedings, Volume 1, 2018, Pages 1265-1268, ISSN 23591757, http://dx.doi.org/10.5151/cobeq2018-PT.0335 (www.proceedings.blucher.com.br/article-details/retrofit-of-heat-exchangers-using-tube-inserts-28723) Palavras-chave:: ;