Air Conditioning Specifications of Outdoor LED Display
How to choose air conditioning specifications for outdoor LED display?
When estimating the outdoor LED display air conditioning specifications, it needs to first estimate the LED display screen inside the heat dissipation and understand the air conditioning cooling capacity (specifications), because the air conditioner’s cooling capacity is the sum of the heat eliminating from the LED display screen’s interior space within the unit time of the air conditioning.
Simple summary, the estimated method of outdoor LED display air conditioning specifications (the horsepower) is of the following two steps:
1, first estimate the display screen internal unit of time generated by the heat: Q = average power per square meter * display area * 0.5;
2, and then use the Q / 3 numerical comparison of air conditioning in the ordinary space of the cooling capacity (1HP-2500W, 1.5HP-3500W), select the appropriate air conditioning specifications and quantity; under normal circumstances, requiring air conditioning cooling capacity than Q / 3 large 40-50%.
If the previously mentioned 50 square LED display, air conditioning specifications: Q = 11kw, Q / 3 ≈ 3.6kw, compared to air conditioning common specifications, you can choose two 1 (2500w) air conditioning, 5000w is just bigger than 3600w for 40%.
On the air conditioning cooling capacity, the current market used to "match" to measure. There are 6 kinds of common air-conditioning: 1HP, 1.5HP, 2HP, 2.5HP, 3, 5HP, respectively, corresponding to the cooling capacity of 2500 watts, 3500 watts, 5000 watts, 6000 watts, 7,000 watts, 12000 watts (Cooling capacity of non-air conditioning power consumption, 1HP air conditioning power of about 736W).
The LED display screen body heat dissipation can be estimated:
The industry's LED tube photoelectric conversion efficiency is usually set to 20% -30% (estimated), so the screen's total thermal power consumption can be estimated for the screen total power consumption of 70%. (About 20%), and the rest is the amount of heat dissipation in the internal space of the screen body, which accounts for about 50% of the total power consumption of the screen body (specifically, the total average Power consumption, because the display is usually not always full white screen playback, there are bright and dark).
If an outdoor LED display the average power consumption of 450W / flat (different products are different), an area of 50 square. Then the display of the total average power consumption is 22.5KW, according to 50% of the thermal power conversion rate calculation, the screen body about 11KW heat generated (not taking into account the heat generated by sunlight).
But at this time, to calculate the amount of time within the screen body generated by the amount of heat can’t be a standard directly as the choice of air conditioning specifications and the number of benchmark values, such as 11KW in addition to 6KW need to draw two 2.5HP air conditioning conclusion, but also consider the outdoor LED display structure of this factor.
Outdoor LED display internal width (channel width) is generally between 0.8-1 meters, about the height of ordinary residential room (2.8-3 meters) of 1/3, that is, the same area, the display space inside the volume Only 1/3 of the volume of ordinary residential rooms. In accordance with the actual life experience, to ordinary residential room as a reference, in the outdoor LED display screen inside the body, 1P air conditioning cooling capacity can be about 3 times (due to smaller space), that is, 1P cooling capacity equivalent to Ordinary room within the 7500W, 1.5P cooling capacity equivalent to the ordinary room in the 10500W ...
So we can calculate the heat dissipation inside the screen body after 11KW, then we can choose two 1P air conditioning (equivalent to 2 * 7500W, choose two 1HP air conditioning than choose a 2P air conditioning is more conducive to cold air in space Uniform circulation). It is recommended that the actual cooling capacity of the air conditioner should be 40-50% larger than the heat dissipation inside the screen body, because it is also necessary to consider the heat generated by the sun exposure screen body (the difference of the solar radiation in different regions is very different).
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