COVID-19 Drops Dry-out Evaporation Evaporation heat transfer Evaporative heat transfer Evaporators Flow boiling Flow pattern map Flow patterns Flow regimes HBV Heat flux Heat transfer co-efficients Heat transfer coefficients Hepatitis B virus Horizontal-tube Intermediate temperatures Medium temperature Middle temperatures Patients Pressure drop Prevention R744 Racial and ethnic minorities Refrigeration Resources Retail stores Smooth horizontal tube Tubes (components)