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Research Article Open access CC BY 4.0

Isothermal and Adiabatic Expansion Based Trilateral Cycles

Ramon Ferreiro Garcia, Beatriz Ferreiro Sanz

Current Journal of Applied Science and Technology · pp. 448–460 · Published 27 Apr 2015

10.9734/BJAST/2015/17350

Abstract

This research work deals with non condensing mode trilateral thermal cycles characterised by the conversion of heat into mechanical work undergoing optionally isothermal and adiabatic closed process based path functions. The proposed trilateral cycles are also characterised by its ability to operate at high efficiency at relative low temperatures when compared with the Carnot factor. An analysis of the proposed cycles is carried out and results were compared with that of a Carnot cycle operating under the same ratio of temperatures. It is determined that into a range of relative low operating temperatures high thermal efficiency is achieved, reaching 41.1% for helium when Carnot Factor is 9.1% under a ratio of temperatures of 300/330 K.

Carnot factor adiabatic expansion isothermal expansion load-dependent path functions thermal efficiency trilateral cycle

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Cited by 18

RETRACTED: Low-grade heat-based thermal cycles unconstrained by the Carnot factor doing work by cooling

Ramon Ferreiro Garcia, Jose Carbia Carril, Steven Iglesias Garcia · Energy · 2017

Self-Sustaining Power Machines enabled to operate without both heat sink and heat source

Ramon Ferreiro Garcia · JOURNAL OF ADVANCES IN PHYSICS · 2025

Preliminary thermodynamic study of regenerative Otto based cycles with zero NOx emissions operating with adiabatic and polytropic expansion

Ramon Ferreiro Garcia, Jose Carbia Carril, Javier Romero Gomez · Energy Conversion and Management · 2016

Critical review of the first-law efficiency in different power combined cycle architectures

Steven Iglesias Garcia, Ramon Ferreiro Garcia, Jose Carbia Carril · Energy Conversion and Management · 2017

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