Air interaction around outdoor air-cooled condensers

作者：Wang Shugang^*; Zhang Tengfei; Zhang Jian

来源：Journal of Southeast University (english Edition), 2010, 26(2): 222-226.

• Air temperature
• Air-cooled condensers
• CFD simulations
• Full-scale models
• Heating efficiencies
• Operating pressure
• Outdoor air
• Outdoor units
• Separation distances
• Vertical wall

In order to increase cooling or heating efficiency, a porous computational fluid dynamics (CFD) model is employed to predict the thermo-fluid status and optimize the placement of outdoor units. A full scale model is established to validate the accuracy of CFD simulation in terms of velocity and temperature distributions. The comparison between the measurement and the simulation shows a good agreement. By evaluating the condensers'; sucked air temperature with CFD for three units installed in a row, it is found that the minimum separation distance among neighboring units is 0.2 m; a vertical wall should be apart from the unit line by at least 0.8 m; and large different operating pressures among units do not impact the flow rate and the heat transfer of the other units meaningfully. ? right.

• 出版日期2010