Photovoltaics/Phase Change Materials Component with Temperature Controlling Property

Abstract:

Photovoltaics and phase change material(PV/PCM) component system was produced through a combination of low melting point paraffin and polyethylene glycol. The experiments studied the temperature control effect of PCM on PV/PCM with different composition and thermal structures. The temperature radiation power curve of PV/PCM system was tested with both laboratorial and field study. The study reveals that temperature controlling period can be lengthened with the increasing PCM content, however no explicit linear relationship is confirmed. The polyethylene glycol is a better temperature controlling PCM and steel wire enhances the heat conduction significantly. The PV/PCM system composed of polyethylene glycol reaches a maximum cooling degree to 30 ℃, cooling period to 6 hours. The open circuit voltage of the system increases by 6%, and the power increases by 10%.