LMTD Shell and TubeTtemperature Formula

Equation for calculate lmtd shell and tubettemperature is,

LMTD = ((T_h1-T_c1)-(T_h2-T_c2))/ln((T_h1-T_c1)/(T_h2-T_c2))

T_h1 = Hot fluid inlet temperature
T_c1 = Cold fluid inlet temperature
T_h2 = Hot fluid outlet temperature
T_c2 = Cold fluid outlet temperature
LMTD = LMTD-cocurrent temperature