How to gradually complete the selection conditions for air conditioning boxes when the room area is limited?

When there is only room area, demand collection can be carried out, but it is not enough to determine the air volume, cooling capacity or power of the air conditioning box. The room purpose and floor height should be clarified first, then the personnel, process heat dissipation, moisture production and exhaust should be confirmed, and finally the air treatment conditions should be formed by system design.

Convert area information into computable input

Area and floor height can give the volume of space, but they cannot describe pollution control targets or production loads. Storage areas, electronic assembly areas and high equipment heating areas of the same area may have completely different air supply tasks. Asking the craft how to use the room first is more reliable than applying a certain air volume per square meter.

The first step is to confirm the purpose, net height, number of users, shifts and process goals; the second step is to confirm equipment heat dissipation, exhaust list, door opening frequency and cold and heat sources; the third step is to determine the air supply volume, air condition, pressure and service area by design. The three steps correspond to different professional inputs and cannot be skipped. What project information should be prepared before selecting the air-conditioning box? Please refer toWhat project information should be prepared before selecting an air-conditioning box?。

The purpose of the room determines the basic direction

Rooms with different uses have different selection directions. Offices or general warehousing may focus on personnel comfort and ventilation; electronic assembly or precision manufacturing may focus on temperature, humidity and cleanliness; equipment-dense areas may focus on sensible heat load; areas with moisture dissipation processes may have prominent moisture loads. The purpose is unclear and there is no direction for subsequent parameter collection.

How the fresh air tasks of the clean room MAU correspond to the process exhaust air, please refer toHow does the fresh air task of the clean room MAU correspond to the process exhaust? . What process environment requirements need to be collected for the air-conditioning box of semiconductor clean factory, please refer toWhat process environment requirements need to be collected for the air-conditioning box of semiconductor clean factory?。

Floor height and volume affect ventilation and airflow organization

The area is multiplied by the floor height to obtain the space volume. The number of air changes and airflow organization are related to the volume. But the floor height also affects the air supply mode, airflow range and return air path. Tall spaces may need to consider layering and air supply heights, while low spaces may be restricted by air ducts and access space. Rooms with the same area and different floor heights may have different equipment configurations.

The air supply volume is determined based on the number of air changes or the cooling and heating load. Please refer toIs the air supply volume of the air conditioning box determined based on the number of air changes or the cooling and heating load? . Please refer to the space required for horizontal and vertical air conditioning boxes.What kind of space do horizontal air-conditioning boxes and vertical air-conditioning boxes require?。

People, equipment and processes are load sources

The number of personnel affects the fresh air volume, sensible heat and moisture load; the equipment power and operating status affect the sensible heat load; the process may produce moisture, dust or gaseous pollutants. With only area and without this information, load calculations can only be rough estimates. Personnel shifts, equipment lists, operating hours, and process exhaust conditions should be collected.

How the circulating air handling unit bears the indoor load can be referred toWhat indoor loads should the circulating air handling unit be selected based on? . How to check the sensible heat and moisture load of equipment, please refer toHow to check the sensible heat and moisture load of the equipment in the air-conditioning box of the advanced packaging workshop?。

Exhaust air and fresh air constitute air volume balance constraints

Room exhaust air volume, personnel fresh air volume and pressure difference requirements will affect the supply air volume and fresh air volume. When only the area is available, it is impossible to determine the exhaust demand. The process exhaust, local exhaust, sanitary exhaust and room pressure difference requirements should be collected, and then the fresh air volume and supplementary air volume should be checked.

How to calculate the fresh air volume and total air supply volume separately, please refer toHow to calculate the fresh air volume and total air supply volume of the air conditioning box separately? . How to determine the proportion of new return air, please refer toHow is the proportion of new return air to the air-conditioning box determined by project requirements?。

The preliminary plan should remain unconfirmed

If the equipment information is not yet available, you can list the tentative load and the information that needs to be supplemented, but do not directly turn the estimated cooling capacity into a guaranteed purchase value. The technical confirmation should be updated item by item, especially for projects with large changes in the number of production equipment and exhaust demand. Estimates should be labeled with sources and assumptions to facilitate subsequent revisions.

What control objectives should be clarified when selecting a constant temperature and humidity air conditioning box? Please refer toWhat control objectives should be clarified when selecting a constant temperature and humidity air conditioning box? . What unchangeable conditions should be determined first for non-standard customization of air-conditioning boxes, please refer toWhat unchangeable conditions should be determined first for non-standard customization of air-conditioning boxes?。

Aili industrial supporting equipment

If you consult Aili Industrial, you can first provide the area, usage and site drawings, and then complete the design data before matching the fan, filter and cabinet to avoid premature locking of the model. Aili's industrial manufacturing end covers the independent research and development and production of motors and fans, control systems, sheet metal, air filters and complete machine assembly. Room conditions, load input and cabinet configurations can be gradually matched in the same package; non-standard solutions can be confirmed in stages according to the data completion rhythm.

Product form can be viewedAir handling unit andFan box page; clean air supply package can be combinedFFU fan filter unit andEFU equipment end fan filter unit verification; terminal particle filtration can be combinedHEPA/ULPA filter confirmation; when it comes to gaseous pollution control, you can communicate separatelyChemical filter solutions. Specific selection parameters, equipment performance and delivery scope still need to be verified based on completed technical data and on-site working conditions. The actual effect is subject to on-site debugging and performance test results.

Submit project parameters:https://ailigy.com/contactus.html

Related questions and answers

Can I choose an air conditioner directly if I only know the room area?
cannot. It also requires usage, floor height, personnel, equipment heat dissipation, exhaust air, fresh air and temperature and humidity requirements. The area is only one of the basic information.

Can you estimate a plan based on area first?
A preliminary estimate can be made, but the tentative conditions should be marked and subsequently revised based on the actual load and air volume data. It cannot be directly used as a procurement guarantee value.

Can Aili Industrial help complete the selection requirements?
You can first conduct preliminary communication based on area and use, and then gradually complete the parameters according to the data list. The specific configuration needs to be confirmed after the data is complete.

Related articlen=linkage

1. What project information should be prepared before selecting an air-conditioning box?

2. Is the air supply volume of the air conditioning box determined based on the number of air changes or the cooling and heating load?

3. What indoor loads should the circulating air handling unit be selected based on?

4. How to calculate the fresh air volume and total air supply volume of the air conditioning box separately?

Key points for selection and acceptance inspection