Question

What is the thermal efficiency of a gas power cycle using thermal energy reservoirs at 627°C and 90°C?

Answer 1

The value is
`\eta = 63\%`

Step-by-step explanation:

Generally the thermal efficiency is mathematically represented as

`\eta = 1 - (T_L)/(T_H) * 100`

substituting [ 627°C + 273 = 900K ] for
`T_H` and [ 90°C + 273 = 333K ] for
`T_L`

So

`\eta =  1 -  (333)/(900) *100`

=>
`\eta = 63\%`