Pinch Analysis is a methodology developed for the integrated chemical processes design. Keywords: Pinch analysis, phase changes, enthalpies. One case study is provided, where an error of 240% in hot target is verified if phase changes are neglected. A modification to Problem Table Method is proposed, that allows the use of enthalpies rigorously calculated from thermodynamic correlations. This hypothesis is not valid in certain situations, particularly when phase changes are involved. These energy targets are calculated through the Problem Table Method, that is based on the description of the process using constant heat capacity flowrates. Box 6066, 3081-970, Campinas - SP, Brazil, Phone: (55) (192) 39-8534, Fax: (55) (192) 39-4717, E-mail: AugAccepted: May 20, 1999)Ībstract - Pinch Analysis is a methodology that allows the calculation of minimum hot and cold utilities consumption in a process from the knowledge of some data of the hot and cold streams. ![]() ![]() Pinch analysis based on rigorous physical propertiesġDepartamento de Engenharia Química e de Alimentos, Escola de Engenharia Mauá, (IMT), Estrada das Lágrimas 2035, São Caetano do Sul - SP, Brazil, 09580-900, Phone: (55) (11) 4239-3060, Fax: (55) (11) 4239-3131, E-mail: de Engenharia Química, Laboratório de Desenvolvimento de Processos de Separação (LDPS) / DPQ, UNICAMP, C.
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