The Crude Oil Fouling of Algiers Refinery

Abstract

R d : fouling resistance (m². °C/kW) U S : total coefficients of surface heat transfer at the dirty state (kW/ m². °C). U P : total coefficients of surface heat transfer at the clean state (kW/ m². °C). m: the flow mass of the cold fluid (the crude oil) (m 3 /h). C P : the heat-storage capacity (kJ/kg. °C), t e , t s : output and input temperatures of the crude oil, respectively (°C). T e , T s : output and input temperatures of the ebb of head respectively (°C). P e ,P s : inlet and outlet pressure of the crude oil respectively (bar) A: the external surface of heat transfer (m²). (FΔTm): the difference in the logarithmic temperature (°C). d 4 15 : density. h 0 : heat transfer coefficient of external film (kW/m². °C). hi 0 : heat transfer coefficient of internal film brought back to external surface (kW/m². °C).