DO NOT UNDERESTIMATE THE HEAT EXCHANGER
Heat exchanger is one of the two important devices in oil refinery industry. Each type of VBOLT heat exchanger is accurately calculated by the engineer team.
1.Efficiency of heat exchanger determines oil recovery rate.
2.Reducing energy consumption.
3.Saving operating costs.
－HEAT EXCHANGERS CALCULATIONS:
The main basic Heat Exchanger equation is:
Q=UxAxΔTm=
The log mean temperature difference ΔTm is:
ΔTm=(T1-t2)-(T2-t1)=°F
Where:
T1=Inl... moreDO NOT UNDERESTIMATE THE HEAT EXCHANGER
Heat exchanger is one of the two important devices in oil refinery industry. Each type of VBOLT heat exchanger is accurately calculated by the engineer team.
1.Efficiency of heat exchanger determines oil recovery rate.
2.Reducing energy consumption.
3.Saving operating costs.
－HEAT EXCHANGERS CALCULATIONS:
The main basic Heat Exchanger equation is:
Q=UxAxΔTm=
The log mean temperature difference ΔTm is:
ΔTm=(T1-t2)-(T2-t1)=°F
Where:
T1=Inlet tube side fluid temperature;
TemperutareiC
t2=Outlet shell side fluid temperature;
T2=Outlet tube side fluid temperature;
t1=Inlet shell side fluid temperature.
can be rearranged to become:
A=Q/(UxΔTm)=
Where:
A=Heat transfer area(m2)(ft2);
Q=Heat transfer rate (kJ/h) (Btu\h);
U=Overall heat transfer coefficient(kJ/h.m2.°C)(Btu/h°F);
ΔTm=Log mean temperature difference(°C)(°F).
And:
Ct=Liquid specific heat,tube side(kJ/kg° K)(Btu/lb°F);
Cs=Liquid specific heat,shell side(kJ/kg°K)(Btu/lb°F).
