Advanced Engineering Thermodynamics

Letter to the editor of renewable and sustainable energy reviews

“…However, this explanation is not satisfactory because it only can explain the ε-0 limit, but cannot remove the paradox." This is false, in fact, it is the opposite to what I contributed on this topic in the cited book [2]. My contribution was that I showed that there is no paradox.…”

“…1. Entropy generation rate in a balanced counterflow heat exchanger with zero pressure-drop irreversibility [2,3]. Sandwiched between N S,H and N S,C is the irreversibility contribution made by the regenerator; this slice has exactly the same features as the T 1 /T 2 ¼0.75 curve that could be drawn near the base of Fig.…”

“…My contribution was that I showed that there is no paradox. Here is what I wrote in the 1997 edition of my thermodynamics book [2], and I cite :…”

Exergy Analysis of Absorption Power Cycle Depending on Source Temperatures

“…The exergy analysis based on the second law is well suited for furthering the goal of more effective energy resources use, for it enables the location, cause, and true magnitude of waste and lost to be determined [23]. Exergy is a measure of the departure of the state of a system from that of the environment, and the method of exergy analysis is well suited for furthering the goal of more energy resource use, for it enables the location, cause, and true magnitude of waste and loss to be determined [24], [25].…”

“…Exergy is a measure of the maximum capacity of a system to perform useful work as it proceeds to a specified final state in equilibrium with its surrounding and exergy analysis has been proven to be a very effective way of analyzing and optimizing the complex power generation systems [23]. The rate of exergy flow E is evaluated as…”