We know that the internal structure of outdoor LED display is full of lines and power accessories, plus LED lamp beads these are light-emitting components, in the process of using a lot of heat is inevitable, want to outdoor LED display display effect and display life are good play
We know that the internal structure of outdoor LED display screen is full of circuits and power supply accessories. In addition, LED lamp beads are all light-emitting components. A lot of heat is inevitable in the process of use. If you want the display effect and display life of outdoor LED display screen to be good, then heat dissipation is essential, so the problem comes, How to choose air conditioner for outdoor LED display panel cooling? Many customers are just at a loss, including many industry personnel.
If you want to choose an optimal air conditioner for outdoor LED display, you need to know that you can estimate the power consumption and heating value of outdoor LED display, and estimate the specification of outdoor LED display air conditioner. You need to estimate the internal heat dissipation of LED display and understand the cooling capacity (specification) of air conditioner, Because at this time, the cooling capacity of the air conditioner represents the total heat removed from the internal space of the LED display screen in unit time.
As for the cooling capacity of air conditioning, it is customary to measure it by “piece” in the market at present. There are six kinds of common air conditioning power: 1p, 1.5p, 2p, 2.5P, 3P and 5p, and the corresponding cooling capacity is 2500 W, 3500 W, 5000 W, 6000 W, 7000 W and 12000 w respectively (the power consumption of 1p air conditioning is about 736w for non air conditioning cooling capacity).
The internal heat dissipation of LED display panel can be estimated as follows:
In the industry, the photoelectric conversion efficiency of LED lamps is usually set at 20% – 30% (estimated), so the total thermal power consumption of the screen can be estimated as 70% of the total power consumption of the screen. The total thermal power consumption subtracts the heat emitted by the six external faces of the screen (about 20%), and the rest is the heat dissipation of the internal space of the screen, which accounts for about 50% of the total power consumption of the screen (to be exact, the total average power consumption, because outdoor LED displays can not always play all white pictures, with light and dark).
If the average power consumption of an outdoor LED display is 450W / flat (different products have differences), the area is 50 square meters. Then the total average power consumption of the display screen is 22.5kW. According to 50% of the thermal power conversion rate, there is about 11kw heat generated inside the screen (without considering the heat generated by sunlight).
But at this time, the heat value generated per unit time in the screen can not be directly used as the reference value for selecting the specification and quantity of air conditioner. For example, 11kw is divided by 6kW, and the conclusion that two 2.5P air conditioners are needed is drawn, because the structural characteristics of outdoor LED display should also be considered.
The interior width (channel width) of outdoor LED display screen is generally between 0.8-1 m, which is about 1 / 3 of the height of ordinary residential room (2.8-3 m), that is, under the same area, the volume of interior space of display screen is only 1 / 3 of that of ordinary residential room. According to the practical experience, taking the ordinary residential room as the reference, the cooling capacity of 1p air conditioner can be increased about three times in the outdoor LED display screen (because the space becomes smaller), that is, the cooling capacity of 1p is equivalent to 7500w in the ordinary room, and the cooling capacity of 1.5p is equivalent to 10500w in the ordinary room
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