نتایج جستجو برای: generation of electrical energy

تعداد نتایج: 21275512  

Journal: :international journal of smart electrical engineering 2013
saber talari mahmoud reza haghifam ali akhavein

in this paper, a stochastic two-stage model is offered for optimization of the day-ahead scheduling of the microgrid. system uncertainties including dispatchable distributed generation and energy storage contingencies are considered in the stochastic model. for handling uncertainties, monte carlo simulation is employed for generation several scenarios and then a reduction method is used to d...

Journal: :polyolefins journal 0
alireza nikfarjam department of mems&nems, faculty of new sciences and technologies, university of tehran, p.o.box:14395-1561, tehran, iran roham rafiee composites research laboratory, faculty of new sciences and technologies, university of tehran, tehran 1439955941 iran mostafa taheri composites research laboratory, faculty of new sciences and technologies, university of tehran, tehran 1439955941 iran

isolated carbon nanotubes (cnts), cnt films and cnt-polymer nanocomposites are a new generation of materials with outstanding mechanical, thermal, electrical and electromagnetic properties. the main objective of this article is to provide a comprehensive review on the investigations performed in the field of characterizing electrical and electromagnetic properties of isolated cnts and cnt-reinf...

Journal: :iranian journal of science and technology transactions of electrical engineering 2015
s.a. hosseini h. askarian abyaneh s.h.h. sadeghi f. razavi m. karami

the iranian ministry of energy commands the regional electrical companies to install dg resources at 63kv/20kv substations and at the end of 20kv lines. the first and foremost challenge in installing these resources is deciding on the optimal place and capacity of these resources. this paper is aimed to propose an appropriate algorithm for siting and sizing such resources in bakhtar regional el...

In this paper, the electrical consumption of Hamedan University is derived of the bills, Then with defining of fuzzy Bus Thermal Coefficient objective function for heating, the amount of available heat selling to university consumer that is produced by Biomass CHP plant is calculated. With the capacity determination of Biomass CHP plant to provide Thermal and electrical energy of university and...

The significant penetration rate of wind turbines in power systems made some challenges in the operation of the systems such as large-scale power fluctuations induced by wind farms. Gas-fired plants with fast starting ability and high ramping can better handle natural uncertainties of wind power compared to other traditional plants. Therefore, the integration of electrical and natural gas syste...

Train braking energy regeneration in urban electrical rail transportation systems can reduce energy consumption and operational cost of the system. In this paper, optimal design of an onboard energy storage system (OESS) with volume constraint is presented for urban electrical rail transportation systems (ERTS). Onboard super-capacitors are considered as the storage system. The objective functi...

Journal: :international journal of occupational hygiene 0
majid hajibabaei department of occupational health engineering, school of health, ahvaz jundishapur university of medical science, ahvaz, iran. azadeh saki department of biostatistics and epidemiology, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran. rostam golmohammadi department of occupational health engineering, school of public health and research center for health sciences, hamadan university of medical sciences, hamadan, iran. mina cheshmehkhavar department of occupational health engineering, school of health, research committee, ahvaz jundishapur university of medical science, ahvaz, iran. marzieh sarabi department of occupational health engineering, school of health, research committee, ahvaz jundishapur university of medical science, ahvaz, iran. maryam isvand department of occupational health engineering, school of health, research committee, ahvaz jundishapur university of medical science, ahvaz, iran.

well-designed lighting decreases accidents and diseases of eyes and can increase productivity and concentration. increase of energy price and a high proportion of electric lighting energy consumption in buildings due to defects in designing and maintenance led to desirable lighting to be reduced. one of our challenges in providing health and quality of lighting is lack of economic justification...

2016
Eunil Park Taeil Han Taehyeong Kim Sang Jib Kwon Angel P. del Pobil Tomonobu Senjyu

In order to minimize the social and environmental concerns arising from the use of traditional energy resources such as fossil fuels and nuclear energy, the South Korean government has attempted to develop alternative energy resources. In particular, the large educational institutes and islands in South Korea—which have the motivation and potential to provide electrical services—are required to...

2011
Christian E. Casillas Daniel M. Kammen

The provision of both electrical and mechanical energy services can play a critical role in poverty alleviation for the almost two billion rural users who currently lack access to electricity. Distributed generation using diesel generators remains a common means of electricity provision for rural communities throughout the world. Due to rising fuel costs, the need to address poverty, and conseq...

Journal: ایمنی زیستی 2017
Fardis Nakhaei, Mehdi Iranajad,

Aluminium is the world’s second most-used metal after steel and the aluminium production industry is the largest, in volume of metal produced, in non-ferrous metal industry. In this study, results of the material flows (country and global scales) related to the production and use of aluminium and energy consumption in 1980 to 2012 were separately analysed. Also, overview of the current status o...

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