Analisis dan Evaluasi Kinerja Heat Exchanger Tipe Shell and Tube – PLTSA Surakarta

Ustwatunisa Agustin; George Endri Kusuma; Tarikh Azis Ramadani

Ustwatunisa Agustin PT. Inti Karya Persada Teknik
George Endri Kusuma Politeknik Perkapalan Negeri Surabaya
Tarikh Azis Ramadani Politeknik Perkapalan Negeri Surabaya

Keywords: energy, flow rate, heat exchanger, shell and tube

Abstract

Abstract – The reduction of syngas temperature at PLTSa Surakarta is carried out with the help of a shell and
tube type heat exchanger. Based on the mechanical properties of the working design, the maximum output
temperature of the syngas is 20?. During commissioning, the actual result of syngas temperature does not
reach the maximum output temperature specification of the heat exchanger. This research analysis heat
exchanger work efficiency was carried out by varying the flow rate of syngas and cooled water. The analysis
shows that the flow rate affects the working performance of the heat exchanger in each parameter of Reynold,
Prandtl, and Nusselt values. The most effective flow rate in reducing temperature is 1500 Nm3/hr for syngas
and 23 m3/hr for cooling water flow rate. With a heat exchanger energy efficiency of 92% at a cooling capacity
of 137.0556 kW and Tout syngas 27.75 ?C.