José Luis Míguez

TL;DR: In this paper, the authors compared the engine performance and emission results of biodiesel derived from used cooking oil when applied in different proportions in outboard engines, and found that the use of the biodiesel resulted in lower emissions of CO (up to 12%) with an increase in emissions of NOx (Up to 20%), except in one case which presented a slight reduction.

TL;DR: In this paper, a review of the improvements already studied in order to optimize the sputtering PVD process, trying to relate these improvements with the industrial requirements as a function of product development and market demand is presented.

TL;DR: In this article, the authors present a new methodology for the evaluation of the environmental and economic feasibility of combustion of different biomass fuels in small boilers based on grey relational analysis of different energetic and emission variables and also residue prices.

TL;DR: In this paper, the ignition front propagation velocity is experimentally studied in a counter-current process for eight different biomass fuels with a wide range of origins, compositions and packing properties, and an uncertainty analysis is included to determine the accuracy of the entire measurement process.

TL;DR: In this article, the authors present a review of different stages of MCDA problems using grey relation methods (i.e., criteria selection and weighting methods) and show that technical criteria are the most evaluated parameters followed by environmental criteria in terms of gas emissions.