To estimate the air conditioning specifications for an outdoor LED display, you first need to calculate the amount of heat generated inside the screen and understand the cooling capacity (specification) of the air conditioner. The cooling capacity of an air conditioner refers to the amount of heat it can remove from the internal space of the LED display per unit of time.
The internal heat dissipation of an LED display can be estimated as follows: In the industry, the photoelectric conversion efficiency of LED tubes is typically set at 20%-30% (estimated), meaning that about 70% of the total power consumption of the screen is converted into thermal energy. Out of this, approximately 20% is dissipated through the outer surface of the screen, while the remaining 50% represents the heat that needs to be removed from the internal space of the screen. This figure depends on the average power consumption, as the screen does not always display a full white image—lighter or darker images will generate less heat.
For example, if the average power consumption of an outdoor LED display is 450W per square meter and the total area is 50 square meters, the total average power consumption would be 22.5KW. Based on a 50% thermal conversion rate, approximately 11KW of heat is generated inside the screen (excluding the heat from sunlight).
However, the heat generated per unit time cannot be directly used to determine the air conditioner’s specification and number of units needed. For instance, even though 11KW of heat is produced, it’s not enough to just divide it by 6KW and conclude that two 2.5P air conditioners are required. The structural characteristics of the outdoor LED display also play a key role in this calculation.
Outdoor LED displays typically have a smaller internal space compared to regular rooms. The internal width (channel width) is usually between 0.8-1m, and the height is roughly one-third of an ordinary residential room (around 2.8-3m). This means the volume of the internal space is only about one-third of that of a typical room. Based on real-life experience, the cooling capacity of a 1P air conditioner in an outdoor LED display can be three times more effective than in a regular room. That is, 1P is equivalent to 7500W in a normal room, 1.5P is equivalent to 10500W, and so on.
Therefore, if the internal heat dissipation is calculated at 11KW, you could choose two 1P air conditioners (equivalent to 2×7500W). Using two 1P units is more efficient for distributing cold air evenly throughout the space compared to using a single 2P unit. Additionally, the actual cooling capacity of the air conditioner should generally be 40-50% higher than the internal heat dissipation to account for additional heat from direct sunlight exposure, which varies depending on the region.
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