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ITS » Undergraduate Theses » Teknik Fisika Ekstensi S1
Posted by reini@its.ac.id at 02/02/2012 15:00:42  •  1334 Views


RANCANG BANGUN SISTEM MONITORING KONDISI OPERASI BIOREAKTOR ANAEROB KONTINYU DENGAN ALGORITMA PRINCIPAL COMPONENT ANALYSIS

DESIGN AND BUILDING MONITORING SYSTEM CONDITION OF OPERATION ANAEROB DIGESTION CONTINUE USING PRINCIPAL COMPONENT ANALYSIS ALGORITM

Author :
PUSPITASARI, RENI  ( 2409105028 )




ABSTRAK

Pada bioreaktor kontinyu pemberian nutrisi dan pengeluaran effluent dari tabung reaktor terjadi secara terus menerus. Dengan metode kontinyu memungkinan organisme tumbuh pada kondisi mantap steady state dimana pertumbuhan organisme terjadi pada laju konstan dan lingkungan stabil. Namun demikian keadaan mikroorganisme menjadi terganggu karena bioreaktor sangat rentan dengan perubahan seperti konsentrasi substrat pH dan temperature. Sehingga dibutuhkan suatu sistem monitoring. Pada penelitian ini variabel yang dimonitor adalah pH dan laju aliran gas. Sensor pH yang digunakan adalah sensor elektroda kaca dan sensor untuk laju biogas adalah potensiometer yang dikonversikan dari pengukuran jarak ke laju aliran. Metode yang digunakan yaitu Pincipal Component Analysis PCA untuk memonitor beberapa mode keadaan yang terjadi pada bioreaktor anaerob. Pincipal Component Analysis digunakan untuk mereduksi data multivariate manjadi variabel baru. Dari variabel baru tersebut digunakan untuk membentuk peta kendali hotteling T2. Kemudian logika fuzzy digunakan untuk menentukan keadaan yang terjadi dengan menggunakan nilai T2 pada masing - masing keadaan. Dari hasil penelitian didapatkan bahwa keadaan normal mempunyai komponen utama mewakili variansi sebesar 93.07 nilai komponen kedua sebesar 6.93. Kendali hotteling T2 memberikan pola yang berbeda-beda untuk tiap-tiap keadaan yaitu nilai rata-rata untuk kondisi normal 0.6387 overload 1.2775 dan underload 3.0089. Sistem monitoring mampu mendeteksi tiga keadaan yang terjadi pada bioreaktor yaitu keadaan normal overload dan underload.


ABSTRACT

In continue bioreactor supply of influent and expenditure of effluent from tube occurs continually. By continue method organism grows in steady state condition is possible in which growth occurs in constant rate and stable environment. Moreover condition of microorganism could be disturbed because bioreactor is very susceptible with change such as concentration of substrate flow rate gas pH and temperature. so that a monitoring system is needed. In this research several variables which is being monitored is pH and flow rate gas. pH sensor is glass electrode sensor and flow rate gas sensor is potentiometer with level float sensor. Monitoring system with principal component analysis PCA method is used to monitor several condition in bioreactor anaerob. Principal Component Analysis is a method that could reduce multivariate data variable to become several new variables. The new variables is applied to form Hotteling. Then fuzzy logic is used to determine condition that value T2 in conditions. From this experiment normal condition has primary component represents variance 93.07 second component value 6.93. Rein hotteling map T2 give pattern that vary to every conditon that is average value for normal condition 0.6387 overload 1.2775 and underload 3.0089. Monitoring system can to detect three conditions in bioreactor such as normal condition overload and underload.



KeywordsBioreactor; PCA; Hotteling; Fuzzy
 
Subject:  Reaktor nuklir; Kontrol jarak jauh
Contributor
  1. Katherine Indriawati, ST. MT.
Date Create: 08/08/2011
Type: Text
Format: PDF
Language: Indonesian
Identifier: ITS-Undergraduate-3100011044843
Collection ID: 3100011044843
Call Number: RSF 621.483 1 Pus r


Source
Undergraduate Thesis, Physics Engineering,RSF 621.483 1 Pus r, 2012

Coverage
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Rights
Copyright @2011 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




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  1.  ITS-Undergraduate-17551-Abstract_Id.pdf - 526 KB
  2.  ITS-Undergraduate-17551-Abstract_en.pdf - 526 KB
  3.  ITS-Undergraduate-17551-Conclusion.pdf - 527 KB
  4.  ITS-Undergraduate-17551-Paper.pdf - 1023 KB




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