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GAZ AKIŞ ÖLÇÜMLERİ İÇİN BİR KAPİLAR AKIŞMETRE SETİNİN DİZAYNI VE KALİBRASYONU

DESIGN AND CALIBRATION OF A CAPILLARY FLOWMETER SET FOR MEASUREMENT OF GAS FLOWS

Journal Name:

  • Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

Publication Year:

  • 1998

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this study, design and calibration of a capillary flowmeter set was represented. The capillary flowmeters will be used for measurements of small gas flows having laminar flow regime. The gases (such as, nitrogen, argon, methane, hydrogen and carbon-dioxide) supplied from high pressure gas bottles and passed through capillary flowmeters (1 to 3) at various times. Each capillary flowmeter was made of glass and calibrated with one or two gases. Outlet of the capillary flowmeters were connected to the needle valves which have been used for regulating gas flowrates of the capillary flowmeters. Gases individually passed to a bubble flowmeter, and residence time of gases are recorded by using a stop watch. Then, from collected experimental results actual gas flowrates through the capillary flowmeters are calculated by using Hagen-Poiseuille equation.
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Abstract (Original Language): 
Bu çalışmada, kapilar bir akışmetre setinin dizaynı ve kalibrasyonu incelenmiştir. Kapilar akışmetreler laminer akışa sahip küçük gaz akış debilerinin ölçümü için kullanılmıştır. Gazlar yüksek basınçlı gaz silindirlerinden sağlanmış (azot, argon, metan, hidojen ve karbondioksit, v.s) ve farklı zamanlarda kapilar akışmetrelerden (1'den 3'e kadar) geçirilmişlerdir. Her bir kapilar akışmetre camdan yapılmış olup, bir yada iki gazla kalibre edilmiştir. Kapilar akışmetre çıkışları, kapilar akışmetre gaz akışlarını regüle eden ayar vanalarına birleştirilmiştir. Gazlar sırasıyle bir kabarcık akışmetresine geçirilmişlerdir ve gazların bu akışmetrede kalış süreleri, kronometre yardımıyle kaydedilmiştir. Sonra, biriktirilen deneysel ölçümlerden yararlanarak, kapilar akışmetrelerden geçen gerçek gaz debileri, Hagen-Poiseuille denklemi kullanılarak hesaplanmıştır.
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