Match each practical thermal design feature on the left with its corresponding primary heat transfer mechanism or mitigation strategy on the right.
- Silvered inner surfaces of a vacuum flaskMinimizes heat transfer by radiation via thermal wave reflection
- Evacuated space between double walls of a vacuum flaskEliminates heat transfer by conduction and convection due to the absence of a material medium
- Heating element positioned at the bottom of an electric kettleMaximizes heat transfer by convection through density-driven fluid currents
- Blackened copper cooling fins on a refrigerator radiatorMaximizes heat transfer by conduction and radiation using high thermal conductivity and high surface emissivity
Cevap
Silvered surfaces match radiation reduction by reflection; Evacuated space matches elimination of conduction and convection via vacuum; Heating element at the bottom matches maximization of convection currents; Blackened copper cooling fins match heat dissipation via high conduction and radiation emissivity.
Each feature correctly pairs with its primary physical heat transfer process: silvered surfaces reflect radiant waves; vacuum stops conduction and convection due to lack of matter; bottom heating drives convection loops via fluid expansion; and blackened copper fins combine high thermal conduction with maximum radiative heat emission.
Adım Adım Çözüm
Anahtar Kavram
Modes of Heat Transfer (Conduction, Convection, and Radiation)
Tahmini Süre:1m 30s