Researchers at the University of Padua in Italy have designed a dual-source heat pump that uses CO2 as the refrigerant and a solar evaporator comprising three PV-T collectors “The key innovation ...

BHUBANESWAR: In a bid to provide access to clean and safe drinking water, 505 solar-based dual pumps have been proposed to be installed in 10 aspirational districts identified by NITI Ayog.