نتایج جستجو برای: power system cycle

تعداد نتایج: 2797850  

Journal: :Journal of physics 2023

Abstract The conventional life cycle management system of power grid equipment has the disadvantage time-consuming information processing when it manages a large amount information. Therefore, design based on RFID is proposed. Referring to overall architecture system, hardware required by defined, and electronic tag card reader are designed complete with radio frequency identification technolog...

Journal: :International Journal of Applied Energy Systems 2020

Journal: :Discrete Mathematics 2017

کتابی, عباس, یزدخواستی, علی,

This study addresses the problem of controlling a variable- speed wind turbine with a doubly fed ‎induction generator (DFIG) by control System that called One-Cycle control (OCC). Generator-side converter regulator speed and Grid-side converter controls reactive power and voltage of the DC-Link. Proposed method under different conditions such as load change, fault and nonlinear loads are studie...

Journal: :journal of research in medical sciences 0
filip a. konecny

cellular and molecular pathways link thrombosis and innate immune system during sepsis. extrinsic pathway activation of protease thrombin through fviia and tissue factor (tf) in sepsis help activate its endothelial cell (ec) membrane protease activated receptor 1 (par-1). thrombin adjusts the ec cycle through activation of g proteins (g12/13), and later through rho gefs (guanine nucleotide exch...

Journal: :international journal of environmental research 2012
a. ataei a. iranmanesh z. rashidi

this study investigated different concepts for natural-gas-fired power plants with the co2capture, and compared them based on the net plant efficiency and emission of co2. the cycles were based ona six oxy-fuel, one post-combustion and two pre-combustion capture concept. this paper presented theresults of an environmental evaluation performed by the application of the life cycle analysis (lca) ...

Journal: :energy equipment and systems 0
ali reza sheibani tezerji mechanical engineering department, islamic azad university, kerman branch, iran mohammad mehdi keshtkar mechanical engineering department, islamic azad university, kerman branch, iran

the purpose of this paper is multi-objective optimization of refrigeration cycle by optimization of all components of the cycle contains heat exchangers, air condenser, evaporator and super-heater. studied refrigeration cycle is compression refrigeration cycle of unit 132 third refineries in south pars that provide chilled water for cooling refinery equipment's. cycle will be performed by ...

Journal: :international journal of advanced design and manufacturing technology 0
mahmoud moradi department of mechanical engineering, faculty of engineering, malayer university, malayer, iran alireza mohazab pak ali khorram department of mechanical engineering, k.n.toosi university of technology,p.o. box 19395-1999, tehran, iran

this study is focused on investigating the parameters of laser percussion drilling process of nickel-base super alloy inconel 718 with thickness of 1 mm. fiber laser with the power of 500 watts was used as the laser source. laser pulse frequency, duty cycle, laser power, focal point position, were assumed as the laser drilling process variables. the hole geometry features, i.e. entrance hole di...

Journal: :international journal of advanced design and manufacturing technology 0
alireza hajipour department of mechanical engineering, university of islamic azad university, science and research branch, boroujerd, iran. and department of mechanical engineering, young researchers club, ayatollah amoli branch, islamic azad university, amol, iran.

in this paper, the effects of input temperature and compression ratio on the net output work and efficiency of the air standard cycles, i.e. atkinson cycle, diesel cycle and otto cycle are analyzed. we assumed that the compression and power processes are adiabatic and reversible and any convective, conductive and radiative heat transfer to cylinder wall during the heat rejection process may be ...

The present work is an attempt to investigate the advanced exergy analysis of cogeneration power plant based on gas turbine and ORC. For this propose, the ORC with internal heat exchanger and R123 as working fluid, is coupled to GT cycle by means of Heat Recovery Steam Generator. Comparing between the results of cogeneration based on GT and cogeneration based on GT-ORC, the magnitude of net pow...

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