Search Results - "Papaefthimiou, V"

Thermodynamic analysis of a counter flow adiabatic dehumidifier with different liquid desiccant materials by Koronaki, I.P., Christodoulaki, R.I., Papaefthimiou, V.D., Rogdakis, E.D.

“…Liquid desiccant systems have been proposed as energy saving alternatives to the conventional vapor compression systems for handling the latent load. This…”
Get full text

A Comparative Ambient Pressure X-ray Photoelectron and Absorption Spectroscopy Study of Various Cobalt-Based Catalysts in Reactive Atmospheres by Turczyniak, S., Luo, W., Papaefthimiou, V., Ramgir, N. S., Haevecker, M., Machocki, A., Zafeiratos, S.

“…The oxidation state of cobalt in various forms (single crystal, nanopowder, deposited on CeO 2 and ZnO supports) was investigated in situ under O 2 , H 2 and…”
Get full text

The electronic structure of Ni-phthalocyanine/metal interfaces studied by X-ray and ultraviolet photoelectron spectroscopy by Petraki, F., Papaefthimiou, V., Kennou, S.

“…Nickel phthalocyanine (NiPc) thin films were grown stepwise on polycrystalline gold and silver substrates and the formed interfaces were characterized by X-ray…”
Get full text

Probing Metal–Support Interaction in Reactive Environments: An in Situ Study of PtCo Bimetallic Nanoparticles Supported on TiO2 by Papaefthimiou, V, Dintzer, T, Lebedeva, M, Teschner, D, Hävecker, M, Knop-Gericke, A, Schlögl, R, Pierron-Bohnes, V, Savinova, E, Zafeiratos, S

“…Our recent surface characterization studies of extended and nanosized PtCo alloys under hydrogen and oxygen atmospheres, indicated significant and reversible…”
Get full text

Thermodynamic study of the effects of ambient air conditions on the thermal performance characteristics of a closed wet cooling tower by Papaefthimiou, V.D., Rogdakis, E.D., Koronaki, I.P., Zannis, T.C.

“…A thermodynamic model was developed and used to assess the sensitivity of thermal performance characteristics of a closed wet cooling tower to inlet air…”
Get full text

Numerical simulation and parametric study of different types of solar cooling systems under Mediterranean climatic conditions by Papoutsis, E.G., Koronaki, I.P., Papaefthimiou, V.D.

“…Solar driven cooling systems can be a promising alternative to traditional electrical grid powered air conditioning plants. These systems use either thermal or…”
Get full text

Electrical Transport in “Few-Layer Graphene” Film Prepared by the Hot-Spray Technique: The Effect of Thermal Treatment by Pirzado, A. A, Jouane, Y, Le Normand, F, Akilimali, R, Papaefthimiou, V, Ghimbeu, C. Matei, Janowska, I

“…We investigate charge transport of a randomly stacked few-layer graphene (FLG) film supported on quartz plate, as-prepared and after annealing treatment. The…”
Get full text

Effect of the Specific Surface Sites on the Reducibility of α‑Fe2O3/Graphene Composites by Hydrogen by Papaefthimiou, V, Florea, I, Baaziz, W, Janowska, I, Doh, W. H, Begin, D, Blume, R, Knop-Gericke, A, Ersen, O, Pham-Huu, C, Zafeiratos, S

“…The reducibility of iron oxide nanoparticles (NPs) supported over few-layer thick graphite upon annealing in hydrogen is investigated by near ambient pressure…”
Get full text

A novel approach for modelling LiBr–H2O falling film absorption on cooled horizontal bundle of tubes by Papaefthimiou, V.D., Koronaki, I.P., Karampinos, D.C., Rogdakis, E.D.

“…A two-dimensional numerical model is developed to describe the coupled heat and mass transfer phenomena for treating the two-dimensional water vapour…”
Get full text

Thermodynamic study of wet cooling tower performance by Papaefthimiou, V. D., Zannis, T. C., Rogdakis, E. D.

“…An analytical model was developed to describe thermodynamically the water evaporation process inside a counter‐flow wet cooling tower, where the air stream is…”
Get full text

Critical review of coupled heat and mass transfer models for a liquid desiccant adiabatic dehumidifier and regenerator by Koronaki, I.P., Christodoulaki, R.I., Papaefthimiou, V.D., Rogdakis, E.D.

“…Liquid desiccant dehumidification systems have been used for many years in specialized applications. The performance of liquid desiccant systems relies heavily…”
Get full text

A photoemission study of the Ooct-OPV5/SiO2/Si(111) interface: Effect of the SiO2 interlayer thickness by PAPAEFTHIMIOU, V, SIOKOU, A, KENNOU, S

Get full text

A detailed analysis of water-vapour absorption in LiBr-H2O solution on a cooled horizontal tube by PAPAEFTHIMIOU, V. D, KARAMPINOS, D. C, ROGDAKIS, E. D

“…A detailed model is presented for the analysis of the thermodynamics and heat and mass transfer in LiBr-H2O absorption on a cooled horizontal tube. The…”
Get full text

The electronic structure of the interface between thin conjugated oligomer films and inorganic substrates with different work function by Papaefthimiou, V., Siokou, A., Kennou, S.

“…In this work, a comparison of the interfacial electronic properties between a semiconducting oligomer and a variety of substrates with different…”
Get full text

The electronic properties of the interface between a thin conjugated oligomer film and SiO2/Si(111), studied by photoemission spectroscopies by PAPAEFTHIMIOU, V, SIOKOU, A, KENNOU, S

Get full text

Modeling of CO2 capture via chemical absorption processes − An extensive literature review by Koronaki, I.P., Prentza, L., Papaefthimiou, V.

“…Climate change mainly due to the release of greenhouse gases into the atmosphere is getting alarming dimensions. CO2 capture from point source emissions is a…”
Get full text

A realistic approach to model LiBr-H2O smooth falling film absorption on a vertical tube by ROGDAKIS, E. D, PAPAEFTHIMIOU, V. D, KARAMPINOS, D. C

Get full text

Impact of film thickness on the structural, linear and non-linear optical properties of ferroelectric Bi2FeCrO6 perovskite thin films by Ait Ali, B., Bouhmouche, A., Wendling, L., Hu, C., Bouillet, C., Schmerber, G., Saeedi, A.M., Zafeiratos, S., Papaefthimiou, V., Moubah, R., Colis, S.

“…Bi2FeCrO6 thin films were grown by PLD with different thicknesses. X-ray diffraction shows that the samples are epitaxial. The Williamson-Hall equation…”
Get full text

Thermodynamic modeling and exergy analysis of a solar adsorption cooling system with cooling tower in Mediterranean conditions by Koronaki, I.P., Papoutsis, E.G., Papaefthimiou, V.D.

“…•Analytical investigation of a solar adsorption chiller cooling system.•Application of the solar cooling system under Mediterranean climatic…”
Get full text

Parametric analysis using AMP and MEA as aqueous solvents for CO2 absorption by Koronaki, I.P., Prentza, L., Papaefthimiou, V.D.

“…•A rate based model is proposed, validated for MEA and AMP aqueous solvents.•Inlet flow rates and liquid temperature, amine molarity and packing affect…”
Get full text