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Graphical representation of energy values of ideal gas in characteristic diagrams by using unusual way

Grafičko predstavljanje energetskih veličina idealnog gasa u karakterističnim dijagramima na način koji nije uobičajen

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Authors
Perušić, Mitar
Pejović, Branko
Smiljanić, Slavko
Kešelj, Dragana
Pavlović, Stefan
Article (Published version)
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Abstract
In this paper, for characteristic polytropic change of state of ideal gas is given graphical planimetric graphical representation of the most important energy values in workplace and thermal diagram, trough the appropriate area. In this paper, we used differential forms of the First and Second law of thermodynamics and basic equation which define the observed change of state, written in a suitable form. The results for the polytropic change of state, are applied to the isobaric and isochoric change of state. It is shown that any of the energy values ( q12, w12, wt12, Dh12, Du12) can be present in both workplace (p, v) as well as thermal (T-s) diagram. Graphical solutions, compared to the analytical, provide efficient theoretical explain and presentation of various thermodynamic processes of ideal gas with different aspects and greatly assist a clearer view of the problem and enhance each other living arrangement. Graphical representation of external influences or energy values shown in... the diagrams, make it possible to more clearly we see connection between these effects, change of state, as well as their each other relations. This is particularly evident in the case when there are (p, v) and (T-s) diagram for a par tic u lar ideal gas, which is common in technical practices (e. g., air as an ideal gas).

U radu je za karakterističnu politropsku promenu stanja idealnog gasa dato grafičko planimetrijsko predstavljanje najvažnijih energetskih veličina u radnom i toplotnom dijagramu, preko odgovarajućih površina. Pri ovome korišćeni su diferencijalni oblici prvog i drugog zakona termodinamike, kao i osnovne relacije koje definišu posmatranu promenu stanja, napisane u pogodnom obliku. Dobijeni rezultati, za politropsku kao opštu promenu stanja, primenjeni su na izobarsku i izohorsku, kao karakteristične promene stanja. Pokazano je da bilo koju od energetskih veličina (q12, w12, wt12, Δh12, Δu12) moguće predstaviti kako u radnom (p-v), tako i u toplotnom (T-s) dijagramu. Prikazana grafička rešenja, u odnosu na analitička, omogućuju efikasnije teorijsko razmatranje i predstavljanje različitih termodinamičkih procesa idealnog gasa sa različitih aspekata i znatno pomažu jasnijem sagledavanju problema i poboljšavaju međusobno sporazumevanje. Grafički prikazi spoljnih uticaja, odnosno energetskih... veličina u prikazanim dijagramima, omogućuju da se još jasnije uoči veza između tih uticaja, promena stanja, kao i njihovi međusobni odnosi. Ovo posebno dolazi do izražaja za slučaj kada postoji (p, v) i (T-s) dijagram za određeni idealni gas, što je čest slučaj u tehničkoj praksi (na primer za vazduh kao idealan gas).

Keywords:
idealan gas / kvazistatičke promene / politropske promene / energetske termodinamičke veličine / radni i toplotni dijagram / grafičko predstavljanje veličina / ideal gas / quasistatic change of state / polytropic change / energy thermodinamic values / workplace and thermal diagram / graphical representation of values
Source:
Termotehnika, 2015, 41, 1, 49-
Publisher:
  • Institut za nuklearne nauke “Vinča” - Društvo termičara Srbije

DOI: 10.5937/termoteh1501049P

ISSN: 0350-218X

[ Google Scholar ]
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/3769
Collections
  • Radovi istraživača pre dolaska u IHTM / Researchers' papers before joining ICTM
Institution/Community
IHTM
TY  - JOUR
AU  - Perušić, Mitar
AU  - Pejović, Branko
AU  - Smiljanić, Slavko
AU  - Kešelj, Dragana
AU  - Pavlović, Stefan
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3769
AB  - In this paper, for characteristic polytropic change of state of ideal gas is given graphical planimetric graphical representation of the most important energy values in workplace and thermal diagram, trough the appropriate area. In this paper, we used differential forms of the First and Second law of thermodynamics and basic equation which define the observed change of state, written in a suitable form. The results for the polytropic change of state, are applied to the isobaric and isochoric change of state. It is shown that any of the energy values ( q12, w12, wt12, Dh12, Du12) can be present in both workplace (p, v) as well as thermal (T-s) diagram. Graphical solutions, compared to the analytical, provide efficient theoretical explain and presentation of various thermodynamic processes of ideal gas with different aspects and greatly assist a clearer view of the problem and enhance each other living arrangement. Graphical representation of external influences or energy values shown in the diagrams, make it possible to more clearly we see connection between these effects, change of state, as well as their each other relations. This is particularly evident in the case when there are (p, v) and (T-s) diagram for a par tic u lar ideal gas, which is common in technical practices (e. g., air as an ideal gas).
AB  - U radu je za karakterističnu politropsku promenu stanja idealnog gasa dato grafičko planimetrijsko predstavljanje najvažnijih energetskih veličina u radnom i toplotnom dijagramu, preko odgovarajućih površina. Pri ovome korišćeni su diferencijalni oblici prvog i drugog zakona termodinamike, kao i osnovne relacije koje definišu posmatranu promenu stanja, napisane u pogodnom obliku. Dobijeni rezultati, za politropsku kao opštu promenu stanja, primenjeni su na izobarsku i izohorsku, kao karakteristične promene stanja. Pokazano je da bilo koju od energetskih veličina (q12, w12, wt12, Δh12, Δu12) moguće predstaviti kako u radnom (p-v), tako i u toplotnom (T-s) dijagramu. Prikazana grafička rešenja, u odnosu na analitička, omogućuju efikasnije teorijsko razmatranje i predstavljanje različitih termodinamičkih procesa idealnog gasa sa različitih aspekata i znatno pomažu jasnijem sagledavanju problema i poboljšavaju međusobno sporazumevanje. Grafički prikazi spoljnih uticaja, odnosno energetskih veličina u prikazanim dijagramima, omogućuju da se još jasnije uoči veza između tih uticaja, promena stanja, kao i njihovi međusobni odnosi. Ovo posebno dolazi do izražaja za slučaj kada postoji (p, v) i (T-s) dijagram za određeni idealni gas, što je čest slučaj u tehničkoj praksi (na primer za vazduh kao idealan gas).
PB  - Institut za nuklearne nauke “Vinča” - Društvo termičara Srbije
T2  - Termotehnika
T1  - Graphical representation of energy values of ideal gas in characteristic diagrams by using unusual way
T1  - Grafičko predstavljanje energetskih veličina idealnog gasa u karakterističnim dijagramima na način koji nije uobičajen
VL  - 41
VL  - 62
IS  - 1
SP  - 49
DO  - 10.5937/termoteh1501049P
ER  - 
@article{
author = "Perušić, Mitar and Pejović, Branko and Smiljanić, Slavko and Kešelj, Dragana and Pavlović, Stefan",
year = "2015",
abstract = "In this paper, for characteristic polytropic change of state of ideal gas is given graphical planimetric graphical representation of the most important energy values in workplace and thermal diagram, trough the appropriate area. In this paper, we used differential forms of the First and Second law of thermodynamics and basic equation which define the observed change of state, written in a suitable form. The results for the polytropic change of state, are applied to the isobaric and isochoric change of state. It is shown that any of the energy values ( q12, w12, wt12, Dh12, Du12) can be present in both workplace (p, v) as well as thermal (T-s) diagram. Graphical solutions, compared to the analytical, provide efficient theoretical explain and presentation of various thermodynamic processes of ideal gas with different aspects and greatly assist a clearer view of the problem and enhance each other living arrangement. Graphical representation of external influences or energy values shown in the diagrams, make it possible to more clearly we see connection between these effects, change of state, as well as their each other relations. This is particularly evident in the case when there are (p, v) and (T-s) diagram for a par tic u lar ideal gas, which is common in technical practices (e. g., air as an ideal gas)., U radu je za karakterističnu politropsku promenu stanja idealnog gasa dato grafičko planimetrijsko predstavljanje najvažnijih energetskih veličina u radnom i toplotnom dijagramu, preko odgovarajućih površina. Pri ovome korišćeni su diferencijalni oblici prvog i drugog zakona termodinamike, kao i osnovne relacije koje definišu posmatranu promenu stanja, napisane u pogodnom obliku. Dobijeni rezultati, za politropsku kao opštu promenu stanja, primenjeni su na izobarsku i izohorsku, kao karakteristične promene stanja. Pokazano je da bilo koju od energetskih veličina (q12, w12, wt12, Δh12, Δu12) moguće predstaviti kako u radnom (p-v), tako i u toplotnom (T-s) dijagramu. Prikazana grafička rešenja, u odnosu na analitička, omogućuju efikasnije teorijsko razmatranje i predstavljanje različitih termodinamičkih procesa idealnog gasa sa različitih aspekata i znatno pomažu jasnijem sagledavanju problema i poboljšavaju međusobno sporazumevanje. Grafički prikazi spoljnih uticaja, odnosno energetskih veličina u prikazanim dijagramima, omogućuju da se još jasnije uoči veza između tih uticaja, promena stanja, kao i njihovi međusobni odnosi. Ovo posebno dolazi do izražaja za slučaj kada postoji (p, v) i (T-s) dijagram za određeni idealni gas, što je čest slučaj u tehničkoj praksi (na primer za vazduh kao idealan gas).",
publisher = "Institut za nuklearne nauke “Vinča” - Društvo termičara Srbije",
journal = "Termotehnika",
title = "Graphical representation of energy values of ideal gas in characteristic diagrams by using unusual way, Grafičko predstavljanje energetskih veličina idealnog gasa u karakterističnim dijagramima na način koji nije uobičajen",
volume = "41, 62",
number = "1",
pages = "49",
doi = "10.5937/termoteh1501049P"
}
Perušić, M., Pejović, B., Smiljanić, S., Kešelj, D.,& Pavlović, S.. (2015). Graphical representation of energy values of ideal gas in characteristic diagrams by using unusual way. in Termotehnika
Institut za nuklearne nauke “Vinča” - Društvo termičara Srbije., 41(1), 49.
https://doi.org/10.5937/termoteh1501049P
Perušić M, Pejović B, Smiljanić S, Kešelj D, Pavlović S. Graphical representation of energy values of ideal gas in characteristic diagrams by using unusual way. in Termotehnika. 2015;41(1):49.
doi:10.5937/termoteh1501049P .
Perušić, Mitar, Pejović, Branko, Smiljanić, Slavko, Kešelj, Dragana, Pavlović, Stefan, "Graphical representation of energy values of ideal gas in characteristic diagrams by using unusual way" in Termotehnika, 41, no. 1 (2015):49,
https://doi.org/10.5937/termoteh1501049P . .

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