Fiber Optic Sensor Design and Prototyping for Humidity Detection in Biogas Reactors

Year 2021, Volume: 24 Issue: 4, 1623 - 1627, 01.12.2021

Murat Şahin , Şekip Esat Hayber

https://doi.org/10.2339/politeknik.904631

Cited By: 1

Abstract

In biogas reactors, it is vital to monitor the condensation of water vapor with increasing humidity. The use of fiber optic-based sensors that allow this control to be done online quickly and reliably facilitates the process. In this study, a fiber-optic water vapor and condensation sensor was designed and implemented for biogas reactors. It enables the detection of water due to water vapor and condensation that will increase humidity level based on the combination of fiber reflection losses and longitudinal alignment losses. By creating a very low-cost sensor mechanism that can react quickly and is not affected by environmental variables other than the parameter to be detected, the increasing water vapor and the initial moment of the condensation can be detected with high precision and speed.  

Keywords

Fiber optic humidity sensor, biogas reactor, Fresnel reflection loss, plastic optical fiber

Thanks

The authors thank to TÜBİTAK for supporting the R&D and innovation project.

Biyogaz Reaktörlerinde Nem Tespiti İçin Fiber Optik Sensör Tasarimi ve Prototip Çalişmasi

Abstract

Biyogaz reaktörlerinde, artan nem ile su buharının yoğunlaşmasının izlenmesi hayati önem taşır. Bu kontrolün çevrimiçi olarak hızlı ve güvenilir bir şekilde yapılmasına izin veren fiber optik tabanlı sensörlerin kullanılması, süreci kolaylaştırır. Buna göre bu çalışmada, biyogaz reaktörleri için fiber optik su buharı ve yoğunlaşma sensörü tasarlanmış ve uygulaması yapılmıştır. Fiber yansıma ve boyuna hizalama kayıplarına bağlı olarak nem seviyesinin artması ile oluşacak su buharı ve yoğunlaşması algılanabilmiştir. Hızlı tepki verebilen ve tespit edilecek parametre dışındaki çevresel değişkenlerden etkilenmeyen çok düşük maliyetli bir sensör mekanizması oluşturularak, artan su buharı ve yoğunlaşmanın başlangıç anı yüksek hassasiyet ve hızla tespit edilebileceği gösterilmiştir.

Keywords

Fiber optik nem sensörü, biyogaz reaktörü, Fresnel yansıma kaybı, plastik optik fiber

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