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1. The unit of air volume is
Air volume, as a key indicator of the performance of air-cooled radiators, has multiple expressions for its unit. CMH， The cubic meter per hour can be converted to liters per second (L/S) using the formula 1L/S=3.6CMH. For example, 900L/S is equivalent to 250 cubic meters per second (0.25m ³/s). In addition, CFM (cubic foot per minute) is a unit of air volume calculated in cubic feet, while CMM is a unit of cubic meters. CFM is more commonly used in radiator products. The larger the air volume, the more air the radiator can transport or absorb per minute, and therefore its heat dissipation efficiency is stronger. This is because the heat capacity is constant, and more air flow means that more heat can be taken away per unit time. However, even with the same air volume, the heat dissipation effect will still be affected by the flow of the wind. Overall, the size of the airflow directly affects the heat dissipation efficiency of the radiator and is an important basis for evaluating its performance.
2. What is the unit of CMH? CMH means cubic meters per hour in Chinese. CMH is an abbreviation for cube meter hour (m ³/h) in English, used to represent the unit of airflow or water flow. It is generally understood as the amount of air in a wind system per hour in cubic meters. In the wind system, 1CMH=60CMM; 1CFM=1.7CMH； 1L/s=3.6CMH。 Additional information: The common air volume unit CFM is the commonly used imperial flow unit, which is cubic feet per minute. The air flow rate of a certain volume that wind passes through per unit time is generally expressed in m3/h air volume unit in China, and in foreign countries, it is also expressed in cubic foot per minute (cfm), which is equ
3.53cfm Air volume
53CMM is 53 cubic meters per minute. The air volume refers to the total volume of air sent out or sucked in by the air-cooled radiator fan per minute. If calculated in cubic feet, the unit is CFM; If calculated in cubic meters, it is CMM, and the air volume unit commonly used in radiator products is CFM. In practical applications, the nominal maximum air volume value is not the actual air supply obtained by the heat sink. A large air volume does not necessarily mean strong ventilation capacity. When air flows, the airflow will encounter obstruction from the heat dissipation fins in its flow path, and its impedance will limit the free flow of air. When the air volume increases, the air pressure will decrease. Therefore, there must be an optimal operating point, which is the intersection of the fan performance curve and the wind resistance curve. At the working point, the slope of the fan characteristic curve is the smallest, while the rate of change of the system characteristic curve is the lowest. Additional information: Airflow units CFS: Cubic Feet Per Second, cubic feet per second (ft3/s) CFM: Cubic Feet Per Minute, cubic feet per minute (ft3/min) CMS: Cubic Meter Per Second, cubic meters per second (m3/s) CMM: Cubic Meter Per Minute, cubic meters per minute (m3/min) CMH: Cubic Meter Per Hour, cubic meters per hour (m3/h) L: Liter Per Second, liters per second (L/s) L/min: Liter Per Minute, liters per minute (L/min) Reference source: Baidu Baike - Airflow4. How to understand the unit of air volume CMH
CMH is an abbreviation of "CubeMeterHour", meaning "cubic
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