Martínez de Irujo Echeverría, Mikel2011-01-312011-01-3120100000577325https://academica-e.unavarra.es/handle/2454/2366On the present project it is going to be designed an innovator and new system to takes external free cold as a complementary purpose for the standard system to supply cold. The main objective is to design a real system that could be installed with guaranty of work. This engine much be the most efficient possible to save the most of electric energy cost. How the utilization of this system is totally linked to the external weather it will be studied also the different work conditions as well as the application ranges and the total cost saved when the system is working on parallel with other standard system. An important aspect that is being studied is the particular and specifies requirements of emplacement and meteorological conditions where the system will be placed, that is due to the kind of the internal cycle used for the system to take the cold is totally different of the others cooling machines. When the prototype designed is finished, it will make an example of application on Willys supermarket in order to quantify the total electricity cost is possible to save.application/pdfengRefrigeracióninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessAcceso abierto / Sarbide irekia