Putra, Reggy Arya (2017) Analisis Pengaruh Bentuk FIN Terhadap Efisiensi Thermal High Pressure Economizer Heat Recovery Steam Generator PLTGU PT.PJB-UP Gresik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
2713100144-Undergraduate_Theses.pdf - Published Version Download (5MB) | Preview |
Abstract
Heat Recovery Steam Generator (HRSG) memanfaatkan panas gas buang yang dihasilkan dari proses pembakaran pada Pembangkit Listrik Tenaga Gas (PLTG) dengan panas 500oC, dan digunakan untuk memanaskan air hingga menjadi uap. Pada tube terdapat fin yang berfungsi untuk meningkatkan distribusi perpindahan panas. Oleh karena itu, dilakukan modifikasi dari geometri bentuk fin high pressure economizer. Desain modifikasi yang digunakan pada penelitian ini berbentuk fin bergerigi (Serrated fins) dan berbentuk fin datar (Annular fins). Hasil simulasi dengan menggunakan software ANSYS dan menggunakan metode elemen hingga menunjukkan bahwa panas off gas mengalir melalui fin dan tube, masuk ke dalam untuk memanaskan fluida yang mengalir, yaitu feed water. Distribusi thermal dan temperatur feed water yang paling baik didapatkan dengan menggunakan geometri modifikasi fin bergerigi (serrated fins) dengan nilai temperatur feed water 195.516oC dalam panjang tube 100 mm, yang dimana lebih tinggi dari temperatur feed water kondisi aktual. Effectiveness fin geometri serrated finned tube sebesar 183%.
=========================================================
Heat Recovery Steam Generator (HRSG) uses heat from off gas that produced by combustion process on Pembangkit Listrik Tenaga Gas (PLTG) at temperature 500oC, and it used for heating the water until it changes into steam. On a tube, there are fins that is used for increasing heat transfer distribution. Hence, writer is doing a modification on the fin shape geometry high pressure economizer. Modification designs that used in this research are Serrated Fins and Annular Fins. The result of the simulation, using ANSYS software with finite element methods shows that heat from off gas is flowing from fin into the tube, step into the tube to heat up the flowing fluid, it is feed water. Thermal distribution and feed water temperature that is very good, it is from serrated fins geometry, it is at 195.516oC in 100 mm tube length which is higher than the temperature of feed water at actual condition. Effectiveness fin for serrated finned tube geometry is 183%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | HRSG, Economizer, Metode Elemen Hingga, Bentuk Fin, Distribusi Thermal, Temperatur Feed Water, Effectiveness Fin |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction T Technology > TS Manufactures > TS167 Costs, Industrial |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | REGGY ARYA PUTRA |
| Date Deposited: | 06 Mar 2017 04:58 |
| Last Modified: | 05 Mar 2019 04:16 |
| URI: | http://repository.its.ac.id/id/eprint/1794 |
Actions (login required)
 |
View Item |