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Datasheet Supercritical gas measurement and control
Application note

Supercritical fluid measurement and control

Fluids like carbon dioxide (CO2) are difficult to measure when they move towards the inter-phase stage between being a liquid and a gas. For example, the supercritical point of CO2 is reached at 73,8 bara and 31,1 °C. Beyond these conditions, physical properties like density (ρ) and heat capacity (Cp) change very rapidly as a result of pressure or temperature variations. This makes an accurate mass flow measurement, based on the thermal principle, very difficult.

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Application requirements

mini CORI-FLOW mass flow meters offer a solution here because of the true mass flow measurement, independent of physical properties. The true mass flow of the molecules is measured, regardless of whether the fluid is in gas phase, in liquid phase or indeed somewhere in between. Experiences in the field have proven that this principle of measuring is very accurate and reliable. For control applications Bronkhorst can offer a flow meter in combination with a metal sealed, pressure actuated control valve. Please contact factory for a customised advice.

台灣柏朗豪斯特股份有限公司

新竹縣竹北市台元街三十八號四樓之一、二
Rm. 1 & 2, 4F., No.38, Taiyuan St., Zhubei City, Hsinchu County 302, Taiwan (R.O.C.)
電話 +886 3-5600-518
[email protected]

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Bronkhorst High-Tech designs and manufactures innovative instruments and subsystems for low-flow measurement and control for use in laboratories, machinery and industry. Driven by a strong sense of sustainability and with many years of experience, we offer an extensive range of (mass) flow meters and controllers for gases and liquids, based on thermal, Coriolis and ultrasonic measuring principles. Our global sales and service network provides local support in more than 40 countries. Discover Bronkhorst®!