RESPECTING HEAT ENERGY : Avoiding it's Dribbling & Dissipation (2D)

Understanding and respecting the Laws of Thermodynamics, specially 2nd one to minimize dissipation of heat energy into environment (atmosphere/water bodies /land mass) by efficient thermal machinery design. 1) Avoid multiple energy conversions in a technical system, especially of heat. Rather attempt to ‘use’ idle/waste heat energy directly. For example, in iron casting, heat of poured molten metal heats water enclosed in a chamber below moveable base of mold. The moveable base lifted by steam, compensates thermal cooling of cast. Errors, breakages, residual stresses are reduced. Air conditioning of metro trains when inside air-conditioned underground stations be switched off, as hot air exiting from condenser units installed on roofs of coaches 'thermally' overload hot stations. 3) Live as ‘thermal’ community: super-system approach. Solar power scooters charged by reflective coat on nearby buildings, joint mega-refrigerators. 

via a case study - Using both light & heat energies outputted by LED : SMD LED heated & lit shaving razor

image attached, Video link     

https://raeng.org.uk/diversity-and-inclusion-conference-2023
Royal Academy of Engineering's Diversity & Inclusion Conference 2023 
under Exhibitions > Trimmed Innovations