Estimating outdoor LED display Air conditioning specifications, you need to first estimate the amount of heat dissipation inside the LED display screen and understand the cooling capacity ( specification ) of the air conditioner, because the cooling capacity of the air conditioner represents the heat removed from the internal space of the LED display screen in the unit time. sum. The internal heat dissipation of the LED display screen can be estimated as follows: In the industry, the photoelectric conversion efficiency of LED tubes is usually set to 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 heat consumption to be deducted screen body 6 facing the outer heat dissipated (about 20%), the remaining amount of heat is the internal space of the screen body, about 50% of the total power consumption of the screen body (specifically the average total power consumption because usually not always display all white screen displays, light or dark). If the average power consumption of an outdoor LED display is 450W/ flat ( different products ) , the area is 50 square meters. Then the total average power consumption of the display is 22.5KW . According to the 50% thermal power conversion rate, about 11KW of heat is generated inside the screen (the heat generated by sunlight is not considered ) . However, at this time, the calorific value generated per unit time inside the screen body is calculated, and it cannot be directly used as the reference value for selecting the air conditioner specification and quantity. For example, 11KW is divided into 6KW to draw the conclusion that two 2.5P air conditioners are needed , because the outdoor is also considered. The structural characteristics of the LED display are this factor. Outdoor LED display internal width (channel width) is generally between 0.8-1 m, a height of about ordinary residential rooms (2.8-3 m) 1/3, i.e., the area under the same circumstances, the volume of the inner space of the display Only 1/3 of the size of an ordinary residential room . According to the experience of actual life, with the ordinary residential room as the reference, within the outdoor LED display screen, the cooling capacity of 1P air conditioner can be increased by 3 times ( since the space becomes smaller ) , that is , the cooling capacity of 1P is equivalent to The 7500W in the ordinary room , the 1.5P cooling capacity is equivalent to 10500W in the ordinary room ... So after calculating the heat dissipation inside the screen is 11KW , then we can choose two 1P air conditioners ( equivalent to 2*7500W . Choosing two 1P air conditioners is more conducive to cold air in space than choosing a 2P air conditioner. Uniform circulation ) . Normally, the actual cooling capacity of the air conditioner is 40-50% larger than the internal heat dissipation of the screen , because it is also necessary to eliminate the heat generated by the sunlight exposure screen (the amount of sunlight varies greatly in different regions ) . Light Wire Harness,Light Bar Wiring Harness,Led Light Bar Wiring Harness,Led Light Wiring Harness Dongguan YAC Electric Co,. LTD. , https://www.yacentercn.com
