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Toplam kayıt 55, listelenen: 21-30
Exergy, exergoenvironmental and exergoeconomic evaluation of a heat pump-integrated wall heating system
(Pergamon-Elsevier Science Ltd, 2016)
In this study, a vertical ground source heat pump wall heating system belonging to the Yildiz Renewable Energy House on the Davutpasa Campus of Yildiz Technical University was experimentally and theoretically studied. the ...
Investigation of photoluminescence mechanisms from SiO2/Si:SiO2/SiO2 structures in weak quantum confined regime by deconvolution of photoluminescence spectra
(Amer Scientific Publishers, 2016)
Si nanocrystals embedded in SiO2 matrix were prepared by co-sputtering method followed by a post annealing process in N-2 ambient. By fixing sputtering parameters, the effects of annealing time and annealing temperature ...
Analysis of a wall cooling system using a heat pump
(Pergamon-Elsevier Science Ltd, 2016)
In this study, a vertical ground source heat pump wall cooling system that belongs to the Yildiz Renewable Energy House at the Davutpasa Campus of Yildiz Technical University was studied both experimentally and theoretically. ...
A numerical analysis of convection heat transfer and friction factor for oscillating corrugated channel flows
(Taylor and Francis Ltd., 2019)
The aim of this article is to understand numerically the flow and heat transfer characteristics under oscillating flow conditions for periodically corrugated wavy channel. For the same channel, under steady-state flow ...
The mechanical compression performance of ultra-fine grained stainless steel pyramidal lattice core
(Taylor & Francis Inc, 2019)
Severe plastic deformation (SPD) techniques are prospective ones having ability for desirable high mechanical properties to be achieved without any chemical change in metals. Equal-channel angular pressing (ECAP), one of ...
Exergetic sustainability indicators for a high pressure hydrogen production and storage system
(Pergamon-Elsevier Science Ltd, 2017)
This study examines the exergetic sustainability effect of PEM electrolyzes (PEME) integrated high pressure hydrogen gas storage system whose capacity is 3 kg/h. For this purpose, the indicators, previously used in the ...
Improving thermal power of a cylindrical solar cooker via novel micro/nano porous absorbers: A thermodynamic analysis with experimental validation
(Pergamon-Elsevier Science Ltd, 2018)
In this paper, cylindrical solar cookers with microporous absorbers are experimentally and numerically investigated in terms of thermodynamic performance figures. For a typical spring day in Bayburt, which is a good example ...
The energy efficient configurations of natural convection heat transfer in square enclosures with heatlines
(Yildiz Technical Univ, 2018)
A steady state natural convection heat transfer is numerically investigated in a two-dimensional square enclosure. One of the side walls of the enclosure is brought to high temperature and the upper wall is insulated. the ...
Saturated flow boiling characteristics in single rectangular minichannels: effect of aspect ratio
(Taylor & Francis Inc, 2018)
In this study, saturated flow boiling characteristics of deionized water in single rectangular minichannels are investigated experimentally. A special attention is paid to the effect of aspect ratio (channel width to depth, ...
Effects of different cutting methods for electrical steel sheets on performance of induction motors
(Sage Publications Ltd, 2018)
In this study, by cutting electrical steel stator laminations, one of the most important components of electrical machines by different cutting methods, the effects of these cutting methods on motor efficiency are investigated. ...