Saturated-liquid heat capacity: New polynomial models and review of the literature experimental data

Abstract

In this paper a review of selected literature experimental data for saturated-liquid heat capacities was presented. Two-, three- and four-parameter polynomial correlation models are tested on those data. Obtained results lead to the conclusion that correlation quality depends on the number of parameters, and slightly on the type of models. The best two three- and four-parameter models were proposed.

U ovom radu dat je pregled selektovanih literaturnih eksperimentalnih podataka toplotnog kapaciteta cp zasićene tečnosti. Na osnovu ovih podataka testirani su polinomski korelacioni modeli sa dva, tri i četiri parametra. Konstatovano je da kvalitet korelacije (ukupna srednja procentualna greška) pre svega zavisi od broja parametara modela, a manje od oblika modela. Predloženi su najbolji dvo-, tri- i četvoroparameterski modeli.