نتایج جستجو برای: energy production

تعداد نتایج: 1218126  

Ahmad Sadeghzadeh Ashkan Nabavi-Pelesaraei Hassan Ghasemi Mobtaker, Mir Hossein Payman

The objectives of this research were to investigate influences of energy inputs and energy forms on output levels and evaluation of CO2 emissions for hazelnut production in Guilan province of Iran. Moreover, the sensitivity analysis was done by marginal physical productivity (MPP) method for energy inputs and energy using linear regression. Initial data were collected from 120 orchar...

Amin Nikkhah Mehdi Khojastehpour Nicholas M. Holden Saeed Firouzi

The energy efficiency, greenhouse gas (GHG) emissions, and carbon efficiency of paddy rice production were analysed in Sari in the Mazandaran province of Iran during 2011–2012. Data was collected through questionnaires and interviews with paddy producers. The results showed that the net energy gain was 27,932 MJ ha-1 and energy efficiency was 1.83 during production. The results o...

Due to an increasing need of energy, lack of energy resources worldwide, it is very important to optimize energy generation plant to improve efficiency and production rate .One of the most important plant, for production of water and power are dual purpose power plants. In this kind of power plant a desalination system combines with power generation cycle. According to these issues, in this pap...

Journal: :اقتصاد و توسعه کشاورزی 0
زهره احمدی حمیدرضا میرزایی خلیل آبادی

energy is one of major factors of productions in all of economic sectors, which have important effect on a country economy. the effect of increasing price of energy carriers on productions of economic sectors is inevitable. therefore, this research was conducted by using the input - output model and product forecasting. the study investigated the latest available input - output table in 1385. t...

ژورنال: Archives of Hygiene Sciences 2014
Ardjmand, Mehdi, Rajati, Fatemeh, Rajati, Hajar,

Thousands of tons of urban solid waste and human and animal waste in cities and villages of Iran have endangered the health of the environment and increased the greenhouse gases. On the other hand, the increasing trend of energy consumption has caused energy crisis phenomena in the world. Moreover, the increasing consumption of energy from fossil fuels has caused emissions from these fuels. Hen...

D. Darvishi Salookolaei, P. Babaei S. Heydari gorji

Due to the reduction of renewable energy resources such as fossil fuels, the energy crisis is one of the most critical issues in today’s world. The application of these resources brings about many environmentalpollutionsthatleadtoglobalwarming. Therefore,variouscountrieshaveattemptedto reducepotentialdamageanduserenewableenergiesbytheintroductionandpromotionofrenewable energies as an essential ...

Ahmad Sadeghzadeh Ashkan Nabavi-Pelesaraei Hassan Ghasemi Mobtaker, Mir Hossein Payman

The objectives of this research were to investigate influences of energy inputs and energy forms on output levels and evaluation of CO2 emissions for hazelnut production in Guilan province of Iran. Moreover, the sensitivity analysis was done by marginal physical productivity (MPP) method for energy inputs and energy using linear regression. Initial data were collected from 120 orchar...

Journal: :مطالعات اوراسیای مرکزی 0
saeede vosughi تاج¬محمد شاه منصوری افشین شامیری

it can be argued that fuel and energy sector plays a crucial part in the countries' development and improvement of people's living standards, constituting a pillar of economic development for nations. electricity is considered as an infrastructure for economic, social and cultural development in a way that the growth in electric power is evaluated as an indicator for measuring the gro...

Journal: :international journal of energy and environmental engineering 2011
rangel-hernández víctor hugo gómez-vargas dante patricio gallegos-muñoz armando plascencia- mora héctor

although in mexico the cases and the experiences in bioenergy production are limited, at a worldwide level the knowledge in this area has grown up significantly. for example, unlike argentina and brazil, mexico has only recently begun its bioenergy production from agricultural crops. so this paper will present a review of the actual conditions encountered in mexico as far as biofuels production...

The present study attempts to investigate the potential relationship between input energies, performance production of greenhouse basil, and greenhouse gases emitted from this product. The data were collected from 24 greenhouses using a questionnaire and verbal interaction with farmers. Results of the study showed that the total input energy and total output energy for basil production were 119...

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