Ukrainian office building photovoltaic curtain wall processing

How does a photovoltaic curtain wall work?

A photovoltaic curtain wall coupled with an air-conditioning system is designed. Curtain wall cooling and supply air reheating are achieved using heat recovery. System performance is evaluated, taking an office in hot-humid summer as a case. The system increases power output by 1.07% and achieves 27.51% energy savings.

Do VPV curtain walls block solar radiation?

In contrast, VPV curtain walls with high PV coverage may block large amounts of solar radiation entering the room, increasing energy consumption for lighting and heating. Thus, the single-objective optimal design of the VPV curtain walls is unable to balance its restrictive and even contradictory functions.

Do VPV curtain walls save energy?

According to the literature review, VPV curtain walls exhibit significant potential for energy savings owing to their excellent thermal insulation performance . Furthermore, the shading effect of PV cells can alleviate discomfort glare and enhance occupants’ visual comfort .

Can partitioned design improve the performance of VPV curtain wall?

In summary, partitioned design method of the VPV curtain wall can improve the performance of the conventional VPV curtain wall with the same overall PV coverage. Fig. 17. Comparison of VPV windows with different PV cells distributions of coverage of 40%. 3.3.2. The optimal case obtained using TOPSIS

How does a curtain wall increase the temperature of a solar system?

Due to the expansion of PV coverage ratio, more solar energy is captured and converted into electrical energy, while more thermal energy is generated from the curtain wall and therefore increases the system component temperature. Fig. 21. .

How can a curtain wall reduce energy consumption?

By introducing only a portion of the supply air into the channel, the curtain wall was able to provide sufficient reheat energy, thus avoiding the reheater power input. That is, the energy consumption of the air reheater in PV-DVF was completely reduced to zero, minimizing the serious energy waste associated with the cold-heat offset.