How much of the 1200 KJ of thermal energy at 700 K can be converted to useful

0

1.6kviews

How much of the 1200 KJ of thermal energy at 700 K can be converted to useful

written 7.8 years ago by

teamques10 ★ 64k

• modified 7.8 years ago

work if the environment is at 25°C -

Mumbai university > MECH > SEM 3 > THERMO

Marks: 4M

Year: May 2014

ADD COMMENT EDIT

1 Answer

0

46views

written 7.8 years ago by

teamques10 ★ 64k

Given : Q = 1200 KJ , T = 700K , T0 = 298K

The available energy is given as,

$A = Q(1 - \frac{T_0}{T})$

$A = 1200 (1 - \frac{298}{700})$

$A = 689.142 KJ$

ADD COMMENT EDIT

Please log in to add an answer.