Air was introduced into the base of the gas pre-heater via a rotameter. |
The airflow rate and the pressure were recorded by a rotameter and pressure gauge. |
The flow rate of hydrogen was adjusted by a rotameter with remote control. |
A rotameter, specially designed for diesel engine exhaust gas was used to measure the flow rate of the exhaust and the same is verified using an orifice meter. |
The volumetric flow rate of the gas feed was measured with a rotameter. |
Test fluids were pumped to the column through a rotameter with the help of a centrifugal pump. |