When the new ventilation nozzle with optimal aeration is adopted, the maximum process capability of WCP on the treated specimen is achieved.
In this study, a new ventilation nozzle with aeration is adopted to improve the process capability of WCP by increasing the impact pressure induced by the bubble collapse on the surface of components.
The results reveal that increasing room temperature can save cooling energy when the combination of PV with ceiling mounted personalized ventilation nozzles and background mixing ventilation is used.
The results show that, at a PV clean air supply of only 2.4 l/s, the new nozzle achieves a BZ ventilation effectiveness close to 7 versus less than 2 for a conventional nozzle delivering the same amount of clean air.
This interaction depends on the positioning and direction of the non-uniform invading flow from the nozzle, which should be carefully considered for optimal ventilation design to enhance the effectiveness of ventilation at relatively low energy consumptions.
Large space building using side wall nozzle air-conditioning system may result in poor ventilation effectiveness for positions out of the reach of primary supply air.
The high-frequency and low-frequency ventilation is performed with two jet nozzles which have been designed according to optimal dynamic flow measurements.
The parameters varied were the water flow rate and water pressure, the longitudinal ventilation rate and the arrangement of the nozzle system.
Essentially, focusing a personal air supply into the breathing area of the passenger works on the principle of individual seat ventilation, with the air supply and exhaust nozzles built into the back of the seat ahead.
