Balta, M. TolgaHepbaşlı, ArifHancıoğlu, EbruÖzcanlı, Şevket CihangirYılmazer, ErtanYurdakul, İbrahimDişbudak, Özgür2017-12-012017-12-012009Balta, M. T., Hepbaşlı, A., Hancıoğlu, E., Özcanlı, Ş. C., Yılmazer, E., Yurdakul, İ., and Dişbudak, Ö. (2009). Exergetic analysis of a continuous Bi-axially Oriented Polypropylene (BOPP) film unit in a plastic processing plant. International Journal of Exergy, 6(3), 440-456. doi:10.1504/IJEX.2009.0253491742-82971742-82971742-8300http://doi.org/10.1504/IJEX.2009.025349https://hdl.handle.net/11147/6525This paper deals with an exergy analysis of the stretching process of bi-axially oriented polypropylene films using a hot oil coiler along with stretching and crystallising unit. Exergy destructions and efficiencies in each of the system components are calculated, while the exergy loss and flow diagram (the so-called Grassmann diagram) is presented for the transverse direction (TD) unit. The so-called functional (on the product or benefit/fuel basis) and universal (on the output/input basis) exergy efficiency values of the TD unit are calculated to be 26.40% and 28.46% at a recommended exhaust air relative humidity of 0.0098 kg water/kg air, respectively.eninfo:eu-repo/semantics/openAccessBi-axially oriented polypropylenesBOPP filmExergy analysisPlastic processing plantArticle2-s2.0-6634913528510.1504/IJEX.2009.02534910.1504/IJEX.2009.025349