Near-room-temperature waste heat recovery through radiative cooling for both daytime and nighttime power generation

Abstract

With the rapid growth in global energy consumption, the recovery of waste heat is becoming an important issue. Nevertheless, the recovery of near-room-temperature waste heat remains a challenge because the...

A high heat dissipation strategy based on a multi-scale porous hydrogel and heat sink exhibiting cooling capacity comparable to that of forced air convection but with zero energy consumption

“…The heat transfer coefficient can be improved through the following three ways: forced convection, enhanced radiation, and phase transformation heat exchange. 17–19 Although forced convection is able to effectively dissipate heat, it requires additional energy input and reduces the energy efficiency of the system. 20,21 Radiation is a passive heat transfer method without energy consumption, and its performance is influenced by solar reflectance and thermal emittance of the heat sink surface.…”

A hierarchically modified fibre-reinforced polymer composite laminate with graphene nanotube coatings operating as an efficient thermoelectric generator

“…To this end, various organic and inorganic materials are being studied as candidate materials for thermoelectric energy-harvesting devices. 8–10…”