Napredna pretraga

Analysis of Exergy Destruction of an Evaporator or /and a Condenser

Galović, Antun; Živić Marija; Kokanović, Mato
Analysis of Exergy Destruction of an Evaporator or /and a Condenser // Strojarstvo, 51 (2009), 1; 73-78 (međunarodna recenzija, članak, znanstveni)

Naslov
Analysis of Exergy Destruction of an Evaporator or /and a Condenser

Autori
Galović, Antun ; Živić Marija ; Kokanović, Mato

Izvornik
Strojarstvo (0562-1887) 51 (2009), 1; 73-78

Ključne riječi
Analytical model; Exergy destruction; Evaporator; Condenser; Evaporator and condenser

Sažetak
This work presents the exergy destruction of an evaporator or a condenser or evaporator and condenser. The exergy destruction can be analytically calculated by using the same non-dimensional variables which have been used by its energy analysis. The one additional variable is the ratio of absolute input temperatures of both streams. This means that the given model enables the simultaneous calculation of heat transfer effectiveness and exergy destruction respectively. The exergy destruction is put in the ratio to the heat capacity of the weaker stream. The limited values of the exergy destruction are estimated, taking into account the zero and infinite values of relevant variables. Further, exergy destruction for the case when both streams chang phase is calculated, which means that the appropriate heat exchanger is condenser and evaporator simultaneously. The given model is derived as special case of the model for calculation of exergy destruction by parallel and counter flow heat exchangers respectively. For all presented cases the only temperature differences between the streams have been taking into account. That means that the effect of a frictional pressure drop of the streams on the exergy destruction has been neglected.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

Projekt / tema
120-1201760-1757 - Izmjena topline i mase u fluidiziranom sloju (Antun Galović, )
152-1201760-2202 - Numeričko modeliranje konvekcijsko difuzijskih procesa s promjenom faza (Marija Živić, )
152-1201910-1909 - Analiza i procjena loma konstrukcija iz anizotropnih materijala (Dražan Kozak, )

Ustanove
Strojarski fakultet, Slavonski Brod

Časopis indeksira:

• Current Contents Connect (CCC)
• Web of Science Core Collection (WoSCC)
• Science Citation Index Expanded (SCI-EXP)
• SCI-EXP, SSCI i/ili A&HCI
• Scopus

• Scopus