A5045388676- Refrigeration and Air Conditioning Technologies
- Phase Equilibria and Thermodynamics
- Advanced Thermodynamic Systems and Engines
- Heat Transfer and Optimization
- Heat Transfer and Boiling Studies
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Building Energy and Comfort Optimization
- Green IT and Sustainability
- Adsorption and Cooling Systems
- Carbon Dioxide Capture Technologies
- Heat Transfer Mechanisms
- Spacecraft and Cryogenic Technologies
- Experimental Learning in Engineering
- Finance, Taxation, and Governance
- Chemical and Environmental Engineering Research
- Knowledge Societies in the 21st Century
- Administrative Law and Governance
- E-Learning and Knowledge Management
- Heat transfer and supercritical fluids
- Advanced Thermodynamics and Statistical Mechanics
- Libraries, Manuscripts, and Books
- Enterprise Management and Information Systems
- Solar Thermal and Photovoltaic Systems
- Energy Efficiency and Management
- Magnetic and transport properties of perovskites and related materials
Universitat Jaume I
2015-2024
Departament d'Educació
2017
Universitat Politècnica de València
2006-2008
Due to the entry into force in 2014 of European F-Gas Regulation n° 517/2014 and subsequent Kigali amendment, phase-out medium high-GWP refrigerants has speeded up all refrigeration fields. The effect on plug-in or stand-alone systems meant that other environmentally friendly must replace R134a with low ultra-low GWP maintaining same operating conditions reducing energy consumption. Extended examples these fluids are hydrocarbons R600a R290 inorganic fluid R744 (CO2). However, there...
Refrigeration architectures for low-temperature applications are gaining interest in the Industrial, Commercial and Health fields. One of most classical is cascade systems, where two mechanical single vapor compression cycles thermally paired by heat exchanger (HXcc). The HXcc, acts as condenser low temperature cycle evaporator high cycle. Each charged with a different refrigerant adapted to operating conditions. New environmental rules make necessary find proper pairs get refrigeration...
Due to Regulation EU 517/2014 (F-Gas), the use of refrigerants with GWP higher than 150 was limited from 2015 on in small capacity refrigeration systems Europe. Although that dominate are R600a and R290 nowadays, which classified as A3 by ASHRAE 34, literature points out some refrigerant mixtures exist could offer benefits point view COP VCC, especially hydrocarbons. This study tries identify possible be used alternatives pure hydrocarbons, aim increase energetic behaviour and, if possible,...
Mechanical subcooling systems, both dedicated and integrated, have attracted lot of attention in the recent years due to their great potential improve transcritical CO2 refrigeration systems. Numerous studies theoretically determined COP increments that these systems can offer compared classic experimental works evaluated optimum working conditions for each individual system. However, they not been contrasted experimentally. In this work, integrated mechanical are experimentally parallel...
As a natural refrigerant, Carbon Dioxide (CO2) has been extended in almost all refrigeration fields due to its environmental friendliness, high availability, and technological development the main components of cycle. However, despite benefits, CO2 is limited high-capacity applications cost complex cycle arrangements overcome low coefficient performance (COP) at ambient temperatures. A simple but effective method solve this issue involves mixing with other refrigerants obtaining new...
Solar energy has become an important renewable source for reducing the use of fossil fuels and to mitigate global warming, which solar collectors constitute a technology that is be promoted. The nanofluids can increase efficiency into thermal conversion in collectors. Experimental values specific heat, conductivity viscosity alumina/water are needed evaluate influence solid content (from 0.25 5 v%) flow rate on Reynolds, Nusselt heat transfer coefficient. In laminar regime, enhancement over...