A computational method for the methyl amine/H2 gas mixture concentrations in methyl amine/H2O/H2 absorption refrigeration units

Stegou-Sagia, A

dc.contributor.author	Stegou-Sagia, A	en
dc.date.accessioned	2014-03-01T01:11:35Z
dc.date.available	2014-03-01T01:11:35Z
dc.date.issued	1996	en
dc.identifier.issn	1359-4311	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11721
dc.subject	Methyl amine/H2O/H2 absorption refrigeration units	en
dc.subject	Methyl amine/hydrogen gas mixture	en
dc.subject	Psychrometric charts	en
dc.subject	Thermodynamic-transport properties	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Algorithms	en
dc.subject.other	Amines	en
dc.subject.other	Computational methods	en
dc.subject.other	Gas absorption	en
dc.subject.other	Heat transfer	en
dc.subject.other	Hydrogen	en
dc.subject.other	Mass transfer	en
dc.subject.other	Psychrometers	en
dc.subject.other	Refrigeration	en
dc.subject.other	Thermodynamic properties	en
dc.subject.other	Transport properties	en
dc.subject.other	Water	en
dc.subject.other	Methyl amine/hydrogen gas mixture	en
dc.subject.other	Neutral gas absorption refrigeration units	en
dc.subject.other	Refrigerating machinery	en
dc.title	A computational method for the methyl amine/H2 gas mixture concentrations in methyl amine/H2O/H2 absorption refrigeration units	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/1359-4311(95)00077-1	en
heal.identifier.secondary	http://dx.doi.org/10.1016/1359-4311(95)00077-1	en
heal.language	English	en
heal.publicationDate	1996	en
heal.abstract	Substitution of ammonia by methyl amine is proposed in neutral gas absorption refrigeration units using hydrogen as the pressure equalising gas. The throttling process of the conventional refrigeration units is being replaced by the diffusion of evaporated methyl amine through the hydrogen atmosphere. Accurate knowledge of the thermophysical properties of the working fluids, as well as heat and mass transfer characteristics, are required in the design of these units. This work reports an algorithm for the 'psychrometric problem', i.e. for the determination of the mass fraction of the methyl amine/hydrogen gas mixture from known 'dry' and 'wet' bulb temperatures. The values of the mixture's mass fraction are computed for various combinations of 'dry' and 'wet' bulb temperatures, due to analytical correlations concerning the thermodynamic and transport properties presented by this paper. The final results are given in psychrometric charts for pressures from 17.5 bar to 27.5 bar and temperatures between -30 and 50 degrees C. Copyright (C) 1996 Elsevier Science Ltd	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Applied Thermal Engineering	en
dc.identifier.doi	10.1016/1359-4311(95)00077-1	en
dc.identifier.isi	ISI:A1996UU98400006	en
dc.identifier.volume	16	en
dc.identifier.issue	8-9	en
dc.identifier.spage	707	en
dc.identifier.epage	718	en