This work presents the experimental evaluation of the energy performance of a modified single-stage CO2 transcritical refrigeration plant with an internal heat exchanger (IHX) based on vapour injection in suction line. ...
[EN] The EU Regulation 517/2014 has recently been approved in a further attempt to curb the
effects of GlobalWarming. As a consequence, the refrigeration sector is moving towards refrigerants
with a low GlobalWarming ...
[EN] This paper presents a detailed experimental analysis of the energetic effects of using a subcooler system in a two-stage refrigeration facility driven by a compound compressor. The analysis is carried out by comparing ...
We present the experimental evaluation of a R134a/CO2 cascade refrigeration plant designed for low evaporation temperature in commercial refrigeration applications. The test bench incorporates two single-stage vapour ...
We present the experimental evaluation of an internal heat exchanger or suction-line/liquid-line heat
exchanger in a CO2 subcritical refrigeration plant with gas-cooler. The plant, driven by a 1.5 kW CO2 semi
hermetic ...
The Regulation CE-1005/2009 has banned the use of virgin HCFC-22 in Europe from the 31st December 2009, because it contains chlorine, although its use is allowed up to the 31st December 2014 if it is recycled. Now, ...
[EN] This work presents the experimental evaluation of the energy efficiency and optimal gas-cooler pressures of a single-stage refrigerating plant working with carbon dioxide as refrigerant in transcritical conditions. ...
The paper presents the analysis of the energy performance of an air vortex cooling tube under variations of the
air inlet properties, with three independent experimental tests validated through the energy balance in the ...
[EN] The aim of the present paper is to detail an analysis, based on experimental data, of the inter-stage working conditions of a two-stage vapour compression facility equipped with a compound compressor, which operates ...
[EN] The world community has committed to eliminate the HCFC-22 refrigerant to a series of deadlines according to the agreements taken during the 19th Montreal Protocol meeting in September 2007. This phase-out, which is ...
[EN] This work evaluates, from an energetic point of view. the effects of the superheat caused in the refrigerant by the electric motor cooling (SHsc) in a semihermetic compressor installed in an experimental refrigerating ...
[ES] En este proyecto se trata el diseño de una planta de producción de frío correspondiente a un
camión de transporte de aves congeladas. Se han considerado las diferentes soluciones
disponibles en el mercado, adoptando ...
[ES] El objetivo delt rabajo es presentar una revisión de las máquinas frigoríficas tritérmicas de adsorción, con mención especial en las que trabajan con la mezcla silicagel (o gel de sílice)-agua. La estructura seguida ...
IHX is probably, one of the most commonly alternative used to improve cooling capacity and COP in a CO2
refrigerating plant working in supercritical conditions. The classical position at gas-cooler exit has been
analyzed ...
[EN] This work presents a procedure for calculating the COP and heat transfer rates, based on on-site experimental temperature measurements, of a lithium¿bromide/water direct-fired double-effect absorption chiller in reverse ...
[EN] The European Regulation no 2037/2000 has banned manufacturing HCFC refrigerants from January 1st 2010, although its use is allowed up to 2015 if the fluids come from a recycling process. This situation creates the ...
[EN] As a result of the ban of the CFC fluids in 2000 and the future limitation of HCFC fluids, which manufacture limit is the year 2010, refrigerant producers have been working to develop different mixtures, mainly based ...
Álvarez Ferrer, Maximiliano(Universitat Politècnica de València, 2019-10-03)
[ES] La finalidad de este proyecto es el cálculo y diseño de una instalación de climatización frío/calor. Está destinada a la planta baja de un edificio de uso lúdico, donde se celebrarán seminarios, presentaciones, fiestas ...
Dobón Riofrío, Paula(Universitat Politècnica de València, 2019-10-02)
[ES] El objeto del proyecto es establecer las exigencias de eficiencia energética y seguridad que deben cumplir las instalaciones térmicas de climatización en los edificios destinadas a atender la demanda de bienestar e ...