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ITS » Undergraduate Theses » Teknik Mesin
Posted by aprill@is.its.ac.id at 08/11/2014 00:55:55  •  1052 Views


STUDI EKSPERIMEN PERBANDINGAN PENGARUH VARIASI TEKANAN INLET TURBIN DAN VARIASI PEMBEBANAN TERHADAP KARAKTERISTIK TURBIN PADA ORGANIC RANKINE CYCLE

STUDI EKSPERIMEN PERBANDINGAN PENGARUH VARIASI TEKANAN INLET TURBIN DAN VARIASI PEMBEBANAN TERHADAP KARAKTERISTIK TURBIN PADA ORGANIC RANKINE CYCLE

Author :
RISQIAWAN, DWI DHARMA  ( 2109100120 )




ABSTRAK

Sistem pembangkit listrik telah berinovasi pada saat ini untuk tetap memenuhi kebutuhan akan ketersediaan listrik salah satunya dengan Organic Rankine Cycle ORC. Sistem ini terdiri dari empat komponen utama yaitu evaporator turbin kondensor dan pompa. Fluida kerja dipompa ke evaporator untuk membangkitkan uap lalu digunakan menggerakkan turbin. Uap hasil ekspansi turbin dikondensasi dan dialirkan oleh pompa kembali ke evaporator. Sistem ini mampu memanfaatkan sumber energi yang memiliki temperatur dan tekanan rendah untuk membangkitkan uap fluida organik. Penelitian ini dilakukan untuk mengevaluasi kinerja turbin pada sistem ORC dengan memvariasikan tekanan masuk turbin dan pembebanan dengan menggunakan R-123 sebagai fluida kerja . Pengambilan data dilakukan dengan memvariasikan tekanan masuk turbin pada setiap variasi pembebanan generator. Pengamatan dilakukan hanya pada turbin untuk mengetahui karakteristik turbin yang digunakan saat ini. Pengambilan data dilakukan dengan R-123 sebagai fluida kerja. Dari eksperimen didapatkan temperatur masuk dan keluar turbinkecepatan putaran turbin dalam rpm dan enthalpy dapat diketahui. Enthalpy digunakan untuk mengitung kerja yang dihasilkan turbin efisiensi turbin dan efisiensi sudu turbin. Pada tekanan masuk turbin 8 bar dan beban 1000 Watt data dengan nilai terbaik didapatkan. Hasil perhitungan data didapatkan kerja yang dihasilkan turbin yang terbesar adalah 5437 KW. Hasil lain yang dapat diketahui adalah efisiensi turbin tertinggi 88. Efisiensi sudu turbin tertinggi yang terhitung adalah 429.


ABSTRACT

Power generation system has been innovating at this time to keep going to the availability of electricity to meet the needs of one of them with Organic Rankine Cycle ORC. This system consists of four major components namely evaporator turbine condenser and pump. The working fluid is pumped into the evaporator and then used to generate steam turbine. Condensed steam turbine expansion results and drained by the pump back to the evaporator. The system is able to utilize the energy source that has temperature and low pressure organic fluid to generate steam. This study was conducted to evaluate the performance of the turbine at the ORC system by varying the turbine inlet pressure and load by using R123 as the working fluid. Data collection was performed by varying the turbine inlet pressure on every variation of loading generator. Observation performed only on the turbine to determine the characteristics of turbines in use today. Data collection was performed with R-123 as the working fluid. Temperature obtained from experiments in and out of the turbine the turbine rotation speed in rpm and enthalpy can be known. Used to calculate the enthalpy of work produced turbines turbine efficiency and the efficiency of the turbine blade. At 8 bar inlet pressure turbine and a 1000 Watt load the data with the best value is obtained. The results of calculations of data obtained work produced the biggest turbine is 5437 KW. Another result that can be seen is the highest turbine efficiency of 88. Highest turbine blade efficiency is 42.9 counted.



KeywordsR-123; kerja turbin; efisiensi turbin; efisiensi sudu turbin variasi tekanan;variasi pembebanan
 
Subject:  konversi energi turbin uap
Contributor
  1. Ary Bachtiar Khrisna Putra
Date Create: 06/11/2013
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-21001140005746
Collection ID: 21001140005746
Call Number: RSM 621.165 Ris s


Source
Undergraduate Theses of Mechanical Engineering, RSM 621.165 Ris s, 2014

Coverage
ITS Community

Rights
Copyright @2014 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




[ Download - Open Access ]

  1.  ITS-Undergraduate-33424-2109100120-Abstract_id.pdf - 737 KB
  2.  ITS-Undergraduate-33424-2109100120-Abstract_en.pdf - 738 KB
  3.  ITS-Undergraduate-33424-2109100120-Conclusion.pdf - 358 KB




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