Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...
An international research group led by Germany’s Karlsruhe Institute of Technology conducted energy, economic, and environmental assessments of 54 photovoltaic-thermal (PVT) indirect-expansion (IDX) ...
Scientists in India have built a solar-powered thermic solar geyser prototype based on a nichrome wire heating rod and a flexible pipe heat exchanger with aluminum fins. The system is designed to ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results