Numerical Simulation And Analysis Of Floor Radiant Cooling In Badminton Stadium

With the comfort requirements of people living and working environment of continuousimprovement, to regulate indoor air hot and cold temperature, improve indoor air quality ofthe air conditioning system into the spotlight, it has also become the first choice for peopleliving and working in a changing environment.Hot air conditioner market also makesair-conditioning equipment types have become diverse, there has been a central airconditioning, home air-conditioning unit, such as different types of products.But the airconditioning system to occupy more than30%of building energy consumption with theinternational energy conservation policies carried out, attracted a lot of attention. And how toreduce the energy consumption of the air conditioning system has also become a subject ofresearch focus air conditioning systems engineering personnel.Followed by radiation coolingair conditioning solutions have been proposed, but because of weather conditions, radiantcooling plate surface is easy to condensation, affect the results.To solve this problem it alsoraised the principle of displacement ventilation, radiant cooling solutions and make joint use.Eventually become a new cooling mode than the conventional air conditioning system.Through the adoption of a badminton hall conventional air conditioning systems (air fancoil system) and Radiant Cooling with displacement ventilation systems were numericallysimulated.First, take one of the badminton venue size data established mathematical model,application CFX calculation software (air temperature, flow rate) three-dimensional numericalsimulation of the model is the indoor thermal environment, come to the temperature of the airspace, the plane velocity distribution.Through the simulation results Radiant Cooling with displacement ventilation method toanalyze the feasibility of Radiant Cooling discuss displacement ventilation system istechnically, and with air fan coil system simulation results do comparison, from the design toachieve the effect makes the analysis, argumentation.As can be seen from the comparison ofthe results of the two schemes, radiant cooling distribution of displacement ventilationsystems in terms of speed compared to conventional air conditioning systems, air flow rate issmaller, especially in some of the special venues require a higher wind speed, displacementventilation system is more practical.Conventional air conditioning systems in the wholespace temperature is relatively balanced, displacement ventilation and radiant cooling systemtemperature gradient distribution in the vertical direction, temperature increases space heightincreases, but this approach can meet people’s requirements for air conditioning effect, inparticular in the specific venue is a great advantage.Meanwhile, the initial investment forenergy efficiency and cost analysis of the two programs can also see the advantages of radiantcooling and fresh air system is obvious.