【Daily Discussion】Utilities - HVAC - 20200826
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How is the minimum fresh air volume for an air conditioning system determined? We welcome active participation in discussions; the system offers generous rewards for answering questions from VIP members! ! !
(1) The amount of fresh air required to meet hygiene standards. (2) The amount of fresh air needed to supplement local exhaust ventilation and maintain a \"positive pressure\" in the air-conditioned room. (3) At least 10% of the total supply air volume of the system. (4) The maximum value among the above three amounts shall be used as the minimum required amount of fresh air for the system
(1) Fresh air volume meeting hygiene requirements； (2) The amount of fresh air required to supplement the local exhaust volume and maintain a \"positive pressure\" in the air-conditioned room ； (3) Not less than 10% of the total system air supply volume ； (4) Take the maximum value among the above three as the system’s minimum fresh air volume.
1) Fresh air volume meeting hygiene requirements； (2) The amount of fresh air required to supplement the local exhaust volume and maintain a \"positive pressure\" in the air-conditioned room ； (3) Not less than 10% of the total system air supply volume ； (4) Take the maximum value among the above three as the system’s minimum fresh air volume.
In short, when it comes to fresh air volume in air conditioners, the general requirements are: first, to maintain a positive pressure, and second, to meet hygiene standards. If it refers to the circulating air volume, it is generally calculated as the number of air changes. Different building environments have different requirements. Ventilation is generally also considered as a rate of air exchange; of course, local exhaust ventilation is also taken into account. The exhaust volume is generally calculated as a percentage of the fresh air volume, in order to maintain a certain pressure.
(1) Fresh air volume meeting hygiene requirements； (2) The amount of fresh air required to supplement the local exhaust volume and maintain a \"positive pressure\" in the air-conditioned room ； (3) Not less than 10% of the total system air supply volume ； (4) Take the maximum value among the above three as the system’s minimum fresh air volume.
1) Fresh air volume meeting hygiene requirements； (2) The amount of fresh air required to supplement the local exhaust volume and maintain a \"positive pressure\" in the air-conditioned room ； (3) Not less than 10% of the total system air supply volume ； (4) Take the maximum value among the above three as the system’s minimum fresh air volume.
1) Fresh air volume meeting hygiene requirements； (2) The amount of fresh air required to supplement the local exhaust volume and maintain a \"positive pressure\" in the air-conditioned room ； (3) Not less than 10% of the total system air supply volume ； (4) Take the maximum value among the above three as the system’s minimum fresh air volume.
1) Fresh air volume meeting hygiene requirements； (2) The amount of fresh air required to supplement the local exhaust volume and maintain a \"positive pressure\" in the air-conditioned room ； (3) Not less than 10% of the total system air supply volume ； (4) Take the maximum value among the above three as the system’s minimum fresh air volume.
1) Fresh air volume meeting hygiene requirements； (2) The amount of fresh air required to supplement the local exhaust volume and maintain a \"positive pressure\" in the air-conditioned room ； (3) Not less than 10% of the total system air supply volume ； (4) Take the maximum value among the above three as the system’s minimum fresh air volume.
(1) Fresh air volume meeting hygiene requirements； (2) The amount of fresh air required to supplement the local exhaust volume and maintain a \"positive pressure\" in the air-conditioned room ； (3) Not less than 10% of the total system air supply volume ； (4) Take the maximum value among the above three as the system’s minimum fresh air volume.