Constant Pressure Heat Rejection (3-1)
The final stage (3-1) involves a constant pressure heat rejection back to the original state. From the first law of thermodynamics we find: .
From the definition of work:, we recover the following for the heat rejected during this process: .
As a result, we can determine the heat rejected as follows: 
from the definition of constant pressure specific heats for an ideal gas: 
.
The overall efficiency of the cycle is determined by the total work over the heat input, which for a Lenoir cycle equals 
. Note that we gain work during the expansion process but lose some during the heat rejection process.
Read more about this topic: Lenoir Cycle
Famous quotes containing the words constant, pressure, heat and/or rejection:
“A solitary traveler whom we saw perambulating in the distance loomed like a giant. He appeared to walk slouchingly, as if held up from above by straps under his shoulders, as much as supported by the plain below. Men and boys would have appeared alike at a little distance, there being no object by which to measure them. Indeed, to an inlander, the Cape landscape is a constant mirage.”
—Henry David Thoreau (1817–1862)
“The universal social pressure upon women to be all alike, and do all the same things, and to be content with identical restrictions, has resulted not only in terrible suffering in the lives of exceptional women, but also in the loss of unmeasured feminine values in special gifts. The Drama of the Woman of Genius has too often been a tragedy of misshapen and perverted power.”
—Anna Garlin Spencer (1851–1931)
“Whoever the last true cowboy in America turns out to be, he’s likely to be an Indian.”
—William Least Heat Moon [William Trogdon] (b. 1939)
“The crime of book purging is that it involves a rejection of the word. For the word is never absolute truth, but only man’s frail and human effort to approach the truth. To reject the word is to reject the human search.”
—Max Lerner (b. 1902)