Results 41 to 50 of about 40,153 (337)

Optimization of a solar air heater with phase change materials: Experimental and ‎numerical study [PDF]

, 2017
In this paper, a solar air heater (SAH) with phase change material (PCM)-based energy storage is ‎investigated. Paraffin was placed underneath the absorber plate as the PCM.
Kianifar, A, Moradi, Ramin, Wongwises, S
core   +1 more source

Phase Transition Thermodynamics of 1,3,5-Tris-(α-naphthyl)benzene: Theory and Experiment

Molecules
1,3,5-Tris-(α-naphthyl)benzene is an organic non-electrolyte with notable stability of an amorphous phase. Its glassy and supercooled liquid states were previously studied by spectroscopic and calorimetric methods.
Mikhail I. Yagofarov, Dmitrii N. Bolmatenkov, Airat A. Notfullin, Andrey A. Sokolov, Ilya S. Balakhontsev, Timur A. Mukhametzyanov, Boris N. Solomonov   +6 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

On the computation of moist-air specific thermal enthalpy [PDF]

, 2014
The specific thermal enthalpy of a moist-air parcel is defined analytically following a method in which specific moist entropy is derived from the Third Law of thermodynamics.
Ambaum, Arakawa, Bannon, Bechtold, Betts, Betts, Betts, Bohren, Bougeault, Bretherton, Bretherton, Businger, Catry, Chase, Cuijpers, De Groot, Derbyshire, Dufour, Emanuel, Emanuel, Fagerstroem, Feistel, Fuehrer, Gerard, Glansdorff, Hauf, Iribarne, Jacobsen, Khairoutdinov, Lipiński, Madden, Manzhelii, Marquet, Marquet, Marquet, Marquet, Nagle, Normand, Pauling, Pauluis, Pauluis, Peterson, Richardson, Saunders, Siebesma, Tripoli, Wisniak, WMO, Zdunkowski   +48 more
core   +3 more sources

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source

Confined/Unconfined Crystallization of Poly(3-Hexylthiophene) in Melt/Solution Environments Containing Carbonic Materials and Correlated Thermal and Structural Behaviors

Iranian Journal of Materials Science and Engineering, 2020
Confined and unconfined crystallizations of poly(3-hexylthiophene) (P3HT) were studied in the solution-grown supramolecules and melt-grown systems using a differential scanning calorimeter.
S. Agbolaghi
doaj  

Gibbs free energy difference between the undercooled liquid and the beta-phase of a Ti-Cr alloy [PDF]

, 1992
The heat of fusion and the specific heats of the solid and liquid have been experimentally determined for a Ti60Cr40 alloy. The data are used to evaluate the Gibbs free energy difference, DELTA-G, between the liquid and the beta-phase as a function of ...
Holzer, J. C., Johnson, W. L., Ohsaka, K., Trinh, E. H.   +3 more
core  

Rheocasting versus Die Casting: An Insight into the Low‐Cycle Fatigue Behavior of AlSi7Mg0.6

Advanced Engineering Materials, EarlyView.
The study compares rheocast lightweight components with high‐pressure die cast materials regarding microstructure and fatigue behavior. Rheocast process offers higher efficiency due to lower casting temperatures. Despite some microstructural differences, both processes show similar strengths (yield strength 125 MPa, tensile strength 240 MPa).
Julia Richter, Thomas Wegener, Andreas Schilling, Martin Fehlbier, Thomas Niendorf   +4 more
wiley   +1 more source

Thermal Study of Two Benzotriazole Derivatives

U.Porto Journal of Engineering, 2022
An experimental study based on the thermal analysis of 5-methyl-1H-benzotriazole and 5,6-dimethyl-1H-benzotriazole was developed, by using differential scanning calorimetry.
Ana Lima, Ana Luísa Ribeiro da Silva, Maria Ribeiro da Silva   +2 more
doaj   +1 more source

Modelling of high temperature storage systems for latent heat [PDF]

, 2009
There is a huge demand for heat storages for evaporation applications. Thermal storage systems are used to increase the efficiency of thermal systems by an improved adaption of energy availability and energy demand. In this paper a possible solution
Stückle, Andreas
core   +1 more source