The performance of a solar hot water thermosyphon system was tested with the dynamic system method according to Standard ISO/CD/9459.5. The system is of closed circuit type and consists of two flat plate collectors with total aperture area of 2.74 m and of a 170 liters hot water storage tank. The system was modeled according to the procedures outlined in the standard with the weather conditions...

A metallic wire mesh screen, diameter of approximately 50 μm, is folded into ~80 “accordion-shaped” mini-channels and placed inside the evaporator package a novel passive thermal management device for cooling overhead light-emitting diodes (LEDs) used in factory floors high-bay facilities. The power dissipated via these devices ranges between 75 W 171 W. channel walls (screen) wick liquid water...

Phase change materials (PCM) are applied worldwide as a thermal energy storage technology to reduce demands in buildings and solve environmental contamination issues. Form-stable phase (FSPCM), one branch of PCMs, can be improved by embedding them with thermosyphon, resulting better performance. In this paper, novel thermoplastic elastomer-based FSPCM was developed tested. A device integrating ...