Autor segons l'article: Taboas, Francisco; Bourouis, Mahmoud; Valles, Manel
Departament: Enginyeria Mecànica
Autor/s de la URV: Bourouis Chebata, Mahmoud / Vallès Rasquera, Joan Manel
Paraules clau: Waste heat Lithium nitrate Fishing ship Ammonia Absorption refrigeration
Resum: In this work, the use of waste heat energy of jacket water in diesel engines of fishing ships was analysed for use as a heat source for absorption refrigeration systems. The thermodynamic simulation of an absorption refrigeration cycle with three different working fluid mixtures that use ammonia as a refrigerant was carried out. This analysis was assessed in terms of the cooling demand and cycle performance as a function of the evaporator, condenser and generator temperatures. Moreover, the need for rectifying the vapour stream leaving the generator was analysed together with the drag of the fraction of non-evaporated liquid to the absorber. The results show that the NH3/(LiNO3 + H2O) and NH3/LiNO3 fluid mixtures have higher values of COP as compared to NH3/H2O fluid mixture, the differences being more pronounced at low generation temperatures. If the activation temperature is set to 85 °C, the minimum evaporation temperatures that can be achieved are −18.8 °C for the cycle with NH3/LiNO3, −17.5 °C for the cycle with NH3/(LiNO3 + H2O) cycle and −13.7 °C for the NH3/H2O cycle at a condensing temperature of 25 °C. Also, for the NH3/(LiNO3 + H2O) fluid mixture, it has been demonstrated that the absorption refrigeration cycle can be operated without a distillation column and in this case the water content in the refrigerant stream entering the evaporator is less than 1.5% in weight at the operating conditions selected.
Àrees temàtiques: Thermodynamics Química Medicina iii Mechanics Mechanical engineering Materiais Matemática / probabilidade e estatística Interdisciplinar Industrial and manufacturing engineering Fluid flow and transfer processes Engineering, mechanical Engenharias iv Engenharias iii Engenharias ii Engenharias i Energy engineering and power technology Energy & fuels Ciências biológicas ii Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Biodiversidade Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: manel.valles@urv.cat mahmoud.bourouis@urv.cat
Identificador de l'autor: 0000-0002-0748-1287 0000-0003-2476-5967
Data d'alta del registre: 2023-07-31
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S1359431114001574?via%3Dihub
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Applied Thermal Engineering. 66 (1-2): 603-611
Referència de l'ítem segons les normes APA: Taboas, Francisco; Bourouis, Mahmoud; Valles, Manel (2014). Analysis of ammonia/water and ammonia/salt mixture absorption cycles for refrigeration purposes in fishing ships. Applied Thermal Engineering, 66(1-2), 603-611. DOI: 10.1016/j.applthermaleng.2014.02.065
DOI de l'article: 10.1016/j.applthermaleng.2014.02.065
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2014
Tipus de publicació: Journal Publications
Repositori URV