Abstract
A method is presented to represent a curve by means of a polygonal. The curve, defined in a given interval, is divided into several arcs, and linear chords are drawn between the limits, such that the lines are close enough to the curve to satisfy a convergence criterion. The criterion states that the approximation is satisfactory if the ratio between the area under the curve arc and the area under the straight segment is equal to 1 within a prescribed error. The procedure is proposed to make a curve enthalpy-temperature relationship, usually encountered in condensation problems, behave as a set of linear legs of a polygonal. Hence, if the coolant enthalpy relationship iv, or is assumed to be, linear in the whole interval, the nonlinear problem can be divided into a set of several linear ones, where local transfer equations can be posed and solved based on the local heat transfer coefficient and the local logarithmic mean temperature difference. The method was tested with good results in different condensation problems involving mixtures of vapors and pure vapors containing a noncondensing gas.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
