A thermal mass flow meter is a device used for measuring the flow rate of a fluid, typically gases such as air or nitrogen. It operates based on the principle that the rate of heat transfer away from a heated object is directly proportional to the mass flow rate of the fluid flowing around the object.
How Thermal Mass Flow meters Work
A thermal mass flow meter consists of two temperature sensors and a heater. The first temperature sensor measures the temperature of the fluid before it passes through the flow meter. The second temperature sensor measures the temperature of the fluid after it passes over the heated element. The difference in temperature between the two sensors is directly proportional to the mass flow rate of the fluid. The amount of heat required to maintain the temperature difference is related to the flow velocity of the fluid. By measuring this heat, the mass flow rate can be determined. This data is then converted into an electrical output signal which is typically displayed on a digital readout or transmitted to a computer for data analysis and logging.
Top 8 Thermal Mass Flow meter in the World
Thermal mass flow meters are widely used in industrial and scientific applications to accurately measure the flow rate of gases and liquids. These flow meters work on the principle of thermal dispersion, which is based on the heat transfer properties of fluids. There are numerous thermal mass flow meters available in the market today, but here are our top picks for the top 8 thermal mass flow meters in the world:
1, Remote read gas meter
The thermal mass flow meter (also known as thermal dispersion flow meter) is an instrument that measures the total mass flow rate of a fluid and is actively used in various industries. In order for the thermal flow meter to function effectively, it must be based on the so-called principle of thermal dispersion, which was first discovered by Canadian researcher Loui Vessot King, then applied to production by Dr. John George Olin. There are two types of thermal mass flow meters: inline gas flow meters and insertion type thermal mass flow meters.
2, Low pressure gas flow meter
A thermal flow meter uses the principle of thermal diffusion, which is an effective and reliable technology under adverse conditions. In thermal flow meters, two temperature sensors are placed in the gas, one of which is heated above the fluid’s temperature, and the other to measure the gas’s temperature. As the gas flow rate increases, the heat taken away by the gas increases, and the temperature difference between the two temperature sensors will change with the change of the gas flow rate. Thermal mass flow meter is a perfect choice for low flow pressure measurement gas flow meter due to the proportional relationship between temperature difference and medium flow rate.
3, Natural Gas Mass Flow Meter
A thermal mass flow meter is one of the most recent types of mass flow meters available on the market today. In addition to ultrasonic, magnetic, Coriolis flow meter, and vortex meters, it has a small group of miniature mechanical components. In the past few decades, these devices have seen a rapid rise in popularity. Research indicates that they have gone up over 7.5% through the year 2018. Their primary markets are China, the Middle East, and developing Asian countries in general.
4, Thermal dispersion mass flow meter
A Thermal Dispersion Mass Flow Meter is a type of flow meter that measures the flow rate of fluid in a closed system. It works by using heat transfer principles to measure the mass flow rate of fluids. The meter contains two temperature sensors which are used to detect a difference in the temperature of the fluid as it flows past them. One sensor is heated and the other is an unheated reference sensor. As the fluid flows, the heat from the heated sensor is transferred to the fluid causing a temperature difference between the two sensors. This temperature difference is then used to calculate the mass flow rate of the fluid. Thermal Dispersion mass flow meters are commonly used in industries such as chemical processing, oil & gas, food & beverages, and pharmaceuticals.
5, Compressed air flow meter
For sustainable process system maintenance, compressed air flow meters play an important role in monitoring compressed air consumption. One of the most important characteristics of compressed air flow meters is their ability to monitor compressed air consumption. Air flow meters for compressed air are also important for improving energy efficiency as well as decreasing overall operating costs. In the energy saving industry, these measurements are important because they are important measurements. Compressed air flow meters monitor air consumption, identify air leaks, and save on overall production costs. The benefits of compressed air flow meters include conserving energy, improving safety, and reducing operational costs.
6, Thermal mass flow meter for corrosive gas
With the use of PTFE painting probes and ceramic probes, thermal mass flow meters are ideal for measuring the flow rate of most gases, especially aggressive or caustic gases, such as emission gases, HF gases, ammonia (NH3), H2S, SO2, emissions gases, hydrogen chloride, chlorine, methylamine gases, etc.
7, Flare gas flow meter
Gas flares and vent gas systems are used in many industries around the world, including oil and gas production, refining, chemical processing, gas plants, wastewater treatment facilities, landfills, and more. As part of the flare system, waste gases are burned off, surplus gases are disposed of, and people, equipment, and the environment are protected. To ensure the flare system is operating properly, it is necessary to measure and monitor flare gas.
8, Thermal mass flow meter for lab gas
The SRK-M Micro-flowrate Thermal Gas Mass Flow Meter uses a method of constant differential temperature for measuring gas flow based on thermal dispersion. A gas or air mass flow rate measurement without external temperature or pressure compensation requires no external adjustment or correction. As a result of its small size, easy installation, high reliability, high accuracy, and modular construction, it is ideal for laboratory use.
