Ara
Toplam kayıt 26, listelenen: 11-20
Thermodynamic analysis of a cascade refrigeration system
(Polish Academy of Sciences, 2016)
There is a need for cooling by using the waste heat energy in food industry. Absorption cycles can be driven by waste thermal, geothermal, solar or industrial processes energies. In this study, cascade refrigeration system ...
Exergy analysis of a combined power and cooling cycle
(Polish Academy of Sciences, 2016)
Ammonia-water power cycles are important for efficient utilization of low temperature heat sources such as geothermal, solar, waste heat sources, etc. For some special conditions ammonia-water power cycle is an important ...
Some physical properties of Co-doped GaAs thin films grown by thermionic vacuum arc
(American Institute of Physics Inc., 2016)
Cobalt doped GaAs thin films with the thickness of 100 nm and 200 nm were deposited on glass substrates by a thermionic vacuum arc system. The optical and surface properties were investigated as functions of the film ...
Investigation of the thickness effect to impedance analysis results AlGaN acoustic sensor
(American Institute of Physics Inc., 2016)
In this study, AlGaN acoustic sensors were deposited on aluminum metal substrate by thermionic vacuum arc (TVA) method, for the first time. Impedance analyses of the fabricated acoustic sensors were investigated for the ...
Impedance analysis of nano thickness layered AlGaN acoustic sensor deposited by thermionic vacuum arc
(American Institute of Physics Inc., 2016)
In this study, AlGaN acoustic sensor was deposited on aluminum metal substrate by thermionic vacuum arc (TVA) method for the first time. Gallium materials are used in many applications for optoelectronic device and ...
Investigation of the surface free energy of the ITO thin films deposited under different working pressure
(American Institute of Physics Inc., 2016)
This study discusses the influence of working pressure on the surface energy of the ITO thin films produced by radio frequency magnetron sputtering method. Optical tensiometer (Attension Theta Lite) is used for evaluating ...
Thermoeconomic analyses of steam injected gas turbine cogeneration cycles
(Polish Academy of Sciences, 2015)
In this study, three different gas turbine cogeneration systems that are preheating air, preheating air-fuel and simple cycles where steam injected in to combustion chamber are analyzed. The effects of steam injection on ...
Investigation of an alternative fuel for diesel engines
(Polish Academy of Sciences, 2015)
Internal combustion engines use generally fossil fuel products. World resources of it is limited. Renewable alternative energy sources are getting important solution for energy demand. Hazelnut oil ethyl ester is obtained ...
Soil stabilization with using waste materials against freezing thawing effect
(Polish Academy of Sciences, 2015)
Freezing-thawing processes hapenning in seasonally cold climate cause deformation of soil in time of freezing and strength loss while thawing. Problems of ground frost heave and soil softening belong to the important ...
ZnO thin film synthesis by reactive radio frequency magnetron sputtering
(Elsevier B.V., 2014)
In this study, ZnO thin films were deposited on glass substrates by reactive RF magnetron sputtering method at argon-oxygen gas mixing (1:1) atmosphere. Some properties of the synthesized films were investigated by ...