Proposed by Turkish scientists, the system design consists of combining rooftop PV with a ground source heat pump in a greenhouse used for tomato, cucumber and lettuce cultivation. The solar array ...

The design is based on a spherical motor, a concept invented by Laing and it consists of a hemispheric rotor and impeller that sits on a hard, wear-resistant ceramic ball. Edited by Stephen J. Mraz ...

An international research team has developed a novel solar-air dual-source heat pump (SAHP) for water heating applications. The system's innovation lies in using a blower fan that enables forced ...