1-20\ Pro Liquid ethanol is a flammable fluid and can release vapors that form explosive mixtures at temperatures above its flash point at

16.6\\\\deg C

. In a chemical plant, liquid ethanol

(c_(r)

)

=2.44(kJ)/(k)g*K,\\\ ho =

(

789(kg)/(m^(3)))

is being transported in a pipe with an inside diameter of

5cm

. The pipe is located in a hot area with the presence of an ignition source, where an estimated

20kW

of heat is added to the ethanol. Your task as an engineer is to design a pumping system to transport the ethanol safely and to prevent fire hazard. If the inlet temperature of the ethanol is

10\\\\deg C

, determine the volume flow rate that is necessary to keep the temperature of the ethanol in the pipe below its flash point.\ Liquid ethanol-\

T_(in )=10\\\\deg C

\ FIGURE P 1-20

120 PID Liquid ethanol is a flammable fluid and can release vapors that form explosive mixtures at temperatures above its flash point at 16.6C. In a chemical plant, liquid ethanol (cn=2.44kJ/kgK,=789kg/m3) is being transported in a pipe with an inside diameter of 5cm. The pipe is located in a hot area with the presence of an ignition source, where an estimated 20kW of heat is added to the ethanol. Your task as an engineer is to design a pumping system to transport the ethanol safely and to prevent fire hazard. If the inlet temperature of the ethanol is 10C, determine the volume flow rate that is necessary to keep the temperature of the ethanol in the pipe below its flash point. FIGURE P1-20