If h & h1 are the enthalpies at the inlet & at the exhaust, s & s1 are the enthalpies at the inlet & exhaust, the mean temperature of heat addition, T with regeneration is ?

If h & h1 are the enthalpies at the inlet & at the exhaust, s & s1 are

1.	If h & h1 are the enthalpies at the inlet & at the exhaust, s & s1 are the enthalpies at the inlet & exhaust, the mean temperature of heat addition, T with regeneration is ?
A.	(h + h1)/(s + s1)
B.	(h + h1)/(s – s1)
C.	(h – h1)/(s + s1)
D.	(h – h1)/(s – s1)
Answer» E.