Ara
Toplam kayıt 128, listelenen: 21-30
Investigation of irreversibilities in the compression process for alternative refrigerants in a vapor compression refrigeration cycle
(2008)
Irreversibility analyses during compression process are presented for some refrigerants namely, R290, R134a, R12, R22, and R152a in a vapor compression refrigeration cycle. The effects of evaporator temperature, condenser ...
Elastoplastic stress analysis of functionally graded disc under internal pressure-complas XII
(2013)
The study deals with elastoplastic stress analysis of a hollow disk made of functionally graded materials (FGMs) subjected to an internal pressure. The material properties of disc are assumed to vary radially according to ...
Design of sma based actuators used in robotics
(2013)
This work introduces to Shape Memory Alloy (SMA) using in Robotics as actuators. We investigated a quadruped platform actuated by SMAs which act with variable elasticity. SMAs ought to prove necessary forces for all gaits. ...
A monitoring and control system integrated with smart phones for the efficient use of underground water resources in agricultural product growing
(Hitit University, 2017)
Monitoring and control system is very important for crop development process in agriculture zones. A structure which is carried out based on the type of the product with the knowledge of temperature and humidity values of ...
Experimental investigation of cooling performance a heat pump for near azeotropic refrigerant R404A
(Hitit University, 2017)
In this study, in order to investigate the effect of outdoor air temperatures on the performance of an air source heat pump, operated in cooling mode, using R404A refrigerant, the heat pump was tested at the outdoor air ...
Analysis of scoring resistance on coated spur gears by considering surface roughness
(Hitit University, 2017)
With the rise of velocity and momentum in machines as a result of technological developments, on gears, alongside refraction from the bottom of the gears and pitting formation, and scoring formation has showed up. In the ...
Multi-objective crashworthiness optimization of lattice structure filled thin-walled tubes
(Elsevier Ltd, 2020)
Thin-walled tubes have been mostly used in passive vehicle safety systems as crash energy absorber. With the use of additive manufacturing technology, it is possible to produce novel filler materials to further enhance the ...
Exergy destruction analysis of a gas turbine power plant
(Hitit Üniversitesi Fen Bilimleri Enstitüsü, 2018)
According to the data released by “Republic of Turkey-the Ministry of Energy and Nat ural Resources”, by the end of July 2017, 34% of the electricity of Turkey was produced from natural gas. As it is compared to ...
Acoustic analysis of a liquefied petroleum gas-fired pulse combustor
(2008)
Experimental investigation of acoustic characteristics of a Helmholtz type liquefied petroleum gas-fired pulse combustor is presented. In the experiments, the length of the tail pipe was changed from 1.9 m to 1.3 m by 10 ...
Residual stress analysis and expansion of plastic zone in simple supported woven Ni-Cr reinforced thermoplastic matrix composite laminated plates
(2006)
In this study, a residual stress analysis is carried out on symmetric and antisymmetric cross-ply and angleply thermoplastic simple supported laminated plates for transverse loading. Low density polyethylene thermoplastic ...