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Mostrando ítems 151-160 de 442
Ponencia
Some aspects of the energy cost linked to the IAQ. Impact of free-cooling and heat recovery in office buildings.
(1997)
Increasing air exchange rate to improve IAQ may increase energy consumption, but this increase may be compensated for by strategies such as free cooling and heat recovery. The frame of the proposed paper is the examination ...
Artículo
Axial turbine flow path design for concentrated solar power plants operating with CO2 blends
(Elsevier, 2023-04-26)
The utilisation of certain blends based on supercritical CO2 (sCO2), namely CO2/TiCl4, CO2/C6F6 and CO2/SO2, have been found to be promising for enhancing the performance of power cycles for Concentrated Solar Power (CSP) ...
Artículo
Determination of the Acidity of Waste Cooking Oils by Near Infrared Spectroscopy
(MDPI, 2019)
Waste cooking oils (WCO) recycling companies usually have economic losses for buying WCO not suitable for biodiesel production, e.g., WCO with high free acidity (FA). For this reason, the determination of FA of WCO by ...
Artículo
Extending the concept of high-performance buildings to existing dwellings
(Elsevier, 2023-10)
The ongoing energy crisis in Europe is highlighting the role of the building sector in energy consumption, particularly in countries like Spain, where 90.4% of existing dwellings lack thermal efficiency. Encouraging ...
Artículo
Solar combined cycle with high-temperature thermochemical energy storage
(Elsevier, 2021-08)
The present work proposes integrating a high-temperature thermochemical energy storage cycle to boost the solar contribution in solar combined cycles. The main feature of the plant is the possibility of storing solar energy ...
Artículo
Simplifying the process to perform air temperature and UHI measurements at large scales: Design of a new APP and low-cost Arduino device
(Elsevier, 2023-08)
The main purpose of Urban Heat Island (UHI) studies and the monitoring of ambient temperatures at large scales is to gather temperature information in a certain area, so as to understand temperature heterogeneity and its ...
Artículo
Experimental Analysis of the Performance and Load Cycling of a Polymer Electrolyte Membrane Fuel Cell
(MDPI, 2020-05)
In this work, a comprehensive experimental analysis on the performance of a 50 cm2 polymer electrolyte membrane (PEM) fuel cell is presented, including experimental results for a dedicated load cycling test. The harmonized ...
Patente
Sistema y procedimiento para reducir la potencia necesaria en la etapa de arranque de plantas de oxidación en agua supercrítica
(Oficina Española de Patentes y Marcas , 2015-11-17)
Sistema y procedimiento para reducir la potencia necesaria en la etapa de arranque de plantas de oxidación en agua supercrítica.La invención se encuadra en el sector técnico de procesos de tratamiento de aguas residuales ...
Ponencia
Potential and challenges of the utilization of CO2-mixtures in supercritical power cycles of Concentrated Solar Power plants
(2022-02-22)
The potential of supercritical Carbon Dioxide power cycles to supersede subcritical steam turbine technology in Concentrated Solar Power applications is widely acknowledged. Some differential features of the former are ...
Artículo
Análisis y aprovechamiento de la energía térmica por fricción en película semisólida rotatoria de aleación Cu-Sn, bajo los efectos de alta presión
(Vicerrectorado de Investigación de la Universidad Nacional «Santiago Antúnez de Mayolo», 2016)
El presente trabajo, consiste en la investigación y el desarrollo experimental de un nuevo dispositivo de generación de calor por fricción deslizante, en película térmica. Este tercer cuerpo, se forma por la energía mecánica ...