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Study and Research Opportunities at the University of Rome Tor Vergata

 

We are pleased to announce the following project and patent achieved:

 

Patent name: Absorbedor adiabático para máquina de absorción.
Inventors (by order of signature): M. Venegas, M. de Vega, N. García-Hernando, U. Ruiz-Rivas.
Patent number: ES 2647967 B2. Country of priority: Spain. Application date: 26/05/2016. Holding entity: Universidad Carlos III de Madrid.

 

Title of the project:Desarrollo de máquinas de refrigeración por absorción empleando microintercambiadores, membranas y nanopartículas para la sostenibilidad energética en la edificación (COOLMIN)” DPI2017-83123-R.
Funding entity: Ministerio de Economía, Industria y Competitividad
Combination of microporous membranes in rectangular microchannels with air-cooled water-lithium bromide absorption cooling systems is proposed in this project with the aim of reducing the size and increasing the energy efficiency of this refrigeration technology. The enhancement of heat and mass transfer using nanoparticles is also proposed to be evaluated. The main objective of the project is to set up the scientific basis for the future development of micro-sized absorption cooling chillers employing microporous membrane technology and air as recooling fluid, principally oriented to reducing the energy consumption of dwellings, buildings, cars, etc. due to the use of airconditioning systems. The proposal allows the use of renewable energy sources, like solar thermal or residual low temperature heat.
The proposal includes (i) a membrane-based adiabatic absorber coupled with an air-cooled solution subcooler and (ii) a combined aircooled membrane-based generator-condenser. Research will be conducted at individual components level and it will cover modelling, simulation, design, construction and testing. All the heat and mass exchangers will be based on microchannel technology. As a very important novelty of the research, an adiabatic absorber is proposed, using ambient air to sub-cool the solution before entering the absorber. Nanoparticles will be added to the working fluid to evaluate the improvement obtained in the local heat and mass transfer coefficients and the global system efficiency. Also, durability tests will be performed to evaluate possible obstruction of the membranes with the salt and nanoparticles.

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