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Zirconia Oxygen Sensors for Gas Phase Analysis

Oxygen sensors play a crucial role in gas analysis and pollution control. Learn about galvanic cell oxygen sensors using lead or platinum electrodes in weak acid or alkali electrolytes, and zirconia oxygen sensors with Pt electrode and zirconia electrolyte. Explore the theoretical background and design of these sensors, along with their applications in monitoring and controlling combustion processes.

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Zirconia Oxygen Sensors for Gas Phase Analysis

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  1. O2 In Gas Phase LulukKhanifah(115100601111005) Qudsiyah(115100600111009) Ana Widyaningrum(115100600111031) OnelTabuni(115100606111001) Abdul Wakil(115100613111005)

  2. Oxygen sensors: Galvanic cell Menggunakan elektroda Pb atau Pt. Menggunakan elektrolit asam lemah atau alkali. Zirconia Menggunakan elektroda Pt. Menggunakan elektrolit Zirkonia.

  3. ZIRCONIA OXYGEN SENSORS Introduction Analisa gas menggunakan sensor elektrokimiasekarangsangatpentingdigunakandalambeberapaaplikasi. Vacuum pengontrolanpolusi

  4. Introduction • Sensor oksigenadalahalat yang digunakanuntukmengukurkadar • oksigendalam gas atau liquid. • Umumnya sensor gas inimenggunakankeramikzirconia. • Zirconia gas sensor pertama kali diperkenalkantahun 1961 oleh Peter • danMobiusdanWeissbartdanRuka. • Sensor initerdiridarielektroda platinum, danelektrolitpadatan • zirconia. • Dapatdigunakansebagaikonsumsidaya & penghematanbahanbaku • pengontrolanpolusi (otomotif) sensor oksigen

  5. Theoritical background Zirconiaoksigenmerupakansensor yang memilikiduabuahelektroda platinum yang dicetakpadasisi yang berlawanandarikeramikzirconiadanmengalamiprosesdan reference gas. Reaksiokigenterjadipada TPB (three phase boundary) : elektroda, elektrolit, dan gas.  O2 (pO2,ref),Pt|zirconia|Pt,O2 (pO2,process) Fig. 1. Oxygen sensor electrochemical reaction

  6. Mekanisme Sensor Gas

  7. Design sensor oksigen Alat yang secaraluasdigunakansaatiniterdiriatasstabilisasitabungelektrolitzirkoniadenganelektroda deposit platinum didalamdanpadapermukaan

  8. Ciri khas dari sensor ditampilkan pada diagram dengan diameter sparkling plugnya 18 mm. Contoh tabung zirconia ABB Yokogawa Rosemount

  9. Sensor oksigendapatterjadipada temperature extreme dan • bahankimiaberbahaya. • Pelindung, pembatas internal, danpembatas gas reference • dibuatdaripaduan special sepertiInconel, Hastelloyatau • stainless steel SS 316L • Elektroda yang berporidikembangkanuntukmengetahuiTPB • interfanceuntukreaksioksigendanuntukmemperbaikirespon • sensor dan life timenya.

  10. Monitoring danpengontrolanprosespembakarandengananalisaoksigen Untukpembakaransempurna, CO2 O2 Titikstoikiometridenganefisiensi yang tinggidanemisi yang sangatrendahtidakakanpernahtercapaipadapembakaran yang sebenarnyakarenaketidaksempurnaankeseragamanbahanbakar/udaradandensitas energy bahanbakardanvariasiarusbahanbakar/udara Semakinrendahsuhu gas buang, akanmenyebabkanpembakaranlebihefisien

  11. Aplikasi Sensor oksigen

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