PT. Asahimas Chemical merupakan salah satu perusahaan petrokimia terpadu yang ada di Indonesia. Departemen Vinyl Choliride Monomer-3 (VCM-3) merupakan salah satu Departemen di PT. Asahimas Chemical yang memproduksi 1.2 Ethylene Dichloride (EDC) dan Vinyl Chloride Monomer (VCM). Berdasarkan hasil wawancara, diketahui bahwa Departemen VCM-3 tidak memiliki TEMA datasheet yang lengkap untuk heat exchanger. Selain itu, belum ada penelitian mengenai kemampuan heat exchanger secara aktual di departemen tersebut. Kondisi di atas menunjukkan perlu dilakukannya evaluasi terhadap kondisi dan kapasitas kerja heat exchanger. Hasi evaluasi heat exchanger pada Departemen VCM-3 di PT. Asahimas Chemical diharapkan dapat menjadi masukkan bagi perusahaan untuk menentukan tindakan ke depannya. Proses evaluasi pada tugas akhir ini dilakukan terhadap tiga heat exchanger yang ada di Departemen VCM-3 yaitu HE-307, HE-501, dan HE-503. Evaluasi dilakukan dengan mengukur kinerja aktual ketiga heat exchanger serta menghitung peluang peningkatan kapasitas proses heat exchanger tersebut. Pengukuran kinerja heat exchanger dilakukan dengan merujuk kepada D.Q kern (1983) mengenai proses kerja heat exchanger. Proses evaluasi terhadap ketiga heat exchanger pada Departemen VCM-3 dilakukan dengan dukungan aplikasi simulasi HTRI. Data yang digunakan pada penelitian ini bersumber dari hasil observasi, wawancara, dan studi dokumentasi. Hasil evaluasi terhadap ketiga heat exchanger menunjukkan bahwa kinerja aktual dari HE-307 adalah 136,8%, HE-501 adalah 260%, dan HE-503 adalah 121,7%. Selain itu, terdapat peluang peningkatan kapasitas dengan batasan safety margin atau overdesign sebesar 10%, yaitu 59,70% pada HE-307, 136,11% pada HE-501, dan 11,88% pada HE-503. Kata kunci: evaluasi heat exchanger, kinerja aktual heat exchanger, heat exchanger PT. Asahimas Chemical.

PT. Asahimas Chemical is one of integrated petrochemical’s company in Indonesia. Vinyl Chloride Monomer-3 (VCM-3) Department is one of Departments in PT. Asahimas Chemical which produce 1.2 Ethylene Dichloride (EDC) and Vinyl Chloride Monomer (VCM). Based on the result of interview, VCM-3 Department does not have comprehensive TEMA datasheet for heat exchanger. VCM-3 Department does not have a research related to the actual performance of heat exchanger yet. It shows that VCM-3 Department should have to evaluate the actual performance and capacity of heat exchanger. The result of heat exchanger evaluation in VCM-3 Department was expected to suggest for the next action. Purpose of this final project is evaluating the three heat exchanger, i.e., HE-307, HE-501, and HE-503 in VCM-3 Department. The evaluation was done by measuring the actual performance of three heat exchanger and the probability of uprating capacity process in heat exchanger. The heat exchanger actual performance was measured by process of heat exchanger in accordance with performance evaluation criteria conducted by D.Q Kern (1983). The evaluation process of three heat exchanger in VCM-3 Department was supported by HTRI simulation software. The data which used in this research sourced from the result of observation, interview, and documentation studied. The result of the three heat exchanger evaluation shows that the actual performance from HE-307 is 136.8%, HE-501 is 260%, and HE-503 is 121.7%. There is also the probability for uprating the heat exchanger capacity with the boundary of safety margin or overdesign is 10%, the HE-307 is 59.70%, the HE-501 is 136.11%, and the HE-503 is 11.58%. Keywords: evaluation of heat exchanger, actual performance of heat exchanger, heat exchanger in PT. Asahimas Chemical.

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