Study the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems

In the present work the clathrate hydrate dissociation enthalpies of refrigerant R134a+ water system, and R134a + water + salt system were determined. The heat of dissociation of three types of aqueous salts solutions of NaCl, KBr and NaF at three concentrations (0.09, 0.17and 0.26) mol·kg−1 for ea...

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Autores principales:	Riyadh S. AL Mukhtar, Shurooq T. AL Hemeri, Lina W. Mahmood
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2018
Materias:	Clathrate, Gas Hydrate, HFC-R134a, Dissociation Enthalpy, Ternary System. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/e3040aa41a7f4717a3ef13e6415f6862
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spelling	oai:doaj.org-article:e3040aa41a7f4717a3ef13e6415f68622021-12-02T02:33:58ZStudy the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems10.22153/kej.2018.01.0051818-11712312-0789https://doaj.org/article/e3040aa41a7f4717a3ef13e6415f68622018-08-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/90https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 In the present work the clathrate hydrate dissociation enthalpies of refrigerant R134a+ water system, and R134a + water + salt system were determined. The heat of dissociation of three types of aqueous salts solutions of NaCl, KBr and NaF at three concentrations (0.09, 0.17and 0.26) mol·kg−1 for each salt type, were enthalpy measured. The Clapeyron equation was used tocalculate heat of dissociation of experimental data for binary and ternary system.In order to find the effect of compressibility factor on heat dissociation enthalpy, the study was conducted by using equation of state proposed by Peng and Robinson Stryjek-Vera (PRSV). The obtained results of dissociation enthalpy for binary system were (143.8) kJ.mol-1 without gas compressibility factor (z) and (136.08) kJ.mol-1 with z where the variation between two values was (5.3%). For ternary system (R134a+ water +NaCl) at three concentrations of this salt, the calculated values were in the range of (146.7 - 154.1) kJ.mol-1without z and (138.02-145.14) kJ.mol-1with z where the variation rang between two values was (5.8-5.7) %. The other two types of salts given similar results within (0.886 - 0.129) % deviation rang about NaCl results without z and (0.818-0.149) % deviation rang with z values. Riyadh S. AL MukhtarShurooq T. AL HemeriLina W. MahmoodAl-Khwarizmi College of Engineering – University of BaghdadarticleClathrate, Gas Hydrate, HFC-R134a, Dissociation Enthalpy, Ternary System.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 14, Iss 3 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Clathrate, Gas Hydrate, HFC-R134a, Dissociation Enthalpy, Ternary System. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Clathrate, Gas Hydrate, HFC-R134a, Dissociation Enthalpy, Ternary System. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Riyadh S. AL Mukhtar Shurooq T. AL Hemeri Lina W. Mahmood Study the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems
description	In the present work the clathrate hydrate dissociation enthalpies of refrigerant R134a+ water system, and R134a + water + salt system were determined. The heat of dissociation of three types of aqueous salts solutions of NaCl, KBr and NaF at three concentrations (0.09, 0.17and 0.26) mol·kg−1 for each salt type, were enthalpy measured. The Clapeyron equation was used tocalculate heat of dissociation of experimental data for binary and ternary system.In order to find the effect of compressibility factor on heat dissociation enthalpy, the study was conducted by using equation of state proposed by Peng and Robinson Stryjek-Vera (PRSV). The obtained results of dissociation enthalpy for binary system were (143.8) kJ.mol-1 without gas compressibility factor (z) and (136.08) kJ.mol-1 with z where the variation between two values was (5.3%). For ternary system (R134a+ water +NaCl) at three concentrations of this salt, the calculated values were in the range of (146.7 - 154.1) kJ.mol-1without z and (138.02-145.14) kJ.mol-1with z where the variation rang between two values was (5.8-5.7) %. The other two types of salts given similar results within (0.886 - 0.129) % deviation rang about NaCl results without z and (0.818-0.149) % deviation rang with z values.
format	article
author	Riyadh S. AL Mukhtar Shurooq T. AL Hemeri Lina W. Mahmood
author_facet	Riyadh S. AL Mukhtar Shurooq T. AL Hemeri Lina W. Mahmood
author_sort	Riyadh S. AL Mukhtar
title	Study the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems
title_short	Study the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems
title_full	Study the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems
title_fullStr	Study the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems
title_full_unstemmed	Study the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems
title_sort	study the dissociation enthalpies for r134a clathrate hydrate in binary and ternary systems
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2018
url	https://doaj.org/article/e3040aa41a7f4717a3ef13e6415f6862
work_keys_str_mv	AT riyadhsalmukhtar studythedissociationenthalpiesforr134aclathratehydrateinbinaryandternarysystems AT shurooqtalhemeri studythedissociationenthalpiesforr134aclathratehydrateinbinaryandternarysystems AT linawmahmood studythedissociationenthalpiesforr134aclathratehydrateinbinaryandternarysystems
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Study the Dissociation Enthalpies for R134a Clathrate Hydrate in Binary and Ternary Systems

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