Wind Energy
Sh. Mohammadi; A. Maleki; R. Ehsani; O. Shakouri
Abstract
The present study aims to investigate the possibility of using wind energy in some regions of Zanjan province. The current research concentrates on computing the wind energy potential and wind power density. Furthermore, some features related to wind for two locations in Zanjan province have been obtained. ...
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The present study aims to investigate the possibility of using wind energy in some regions of Zanjan province. The current research concentrates on computing the wind energy potential and wind power density. Furthermore, some features related to wind for two locations in Zanjan province have been obtained. Feasibility study of wind energy utilization and computing of wind power density and wind power potential has been widely (Extensively-comprehensively) conducted for Zanjan province. First, two locations in Zanjan province have been considered to analyze the data at a reasonable level of province and to avoid over-focusing on one area. Thereafter, the statistics about wind speed were achieved from the Renewable Energy Organization of Iran in ten-minute intervals and included wind speeds at the heights of 30,10, and 40 m and wind directions at heights of 30 and 37.5 m. Finally, various wind features have been investigated for given locations in Zanjan province. The results demonstrate that the annual wind speed for Soltanieh and Tarom in the height of 40 m were 4.81 m/s and 3.93 m / s, respectively. The highest value U_me and U_mp is calculated, It was observed at a height of 40 m at Soltanie, It is 11.35 m / s and 1.27 m / s, respectively. Also, the performance of several wind turbines in the mentioned areas has been investigated. Finally, a suitable wind turbine has been identified.
M.R. Amirrud; M. Shahin
Abstract
Wind energy is considered as a precious replacement for fossil fuels in electricity generation. In this regard, many governments (e.g. Iran) tend to support development of this type of renewable energy source. However, fluctuations in Iran’s economic conditions and uncertainty in available wind ...
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Wind energy is considered as a precious replacement for fossil fuels in electricity generation. In this regard, many governments (e.g. Iran) tend to support development of this type of renewable energy source. However, fluctuations in Iran’s economic conditions and uncertainty in available wind power increase the risk of investment. In this investigation a methodology is used to address the uncertainty in wind conditions using probability of occurrence of minimum wind speed. In addition, a feasibility study is considered for economic assessment of establishing a wind turbine power plant in Kerman province, Iran. A sensitivity analysis is developed to analyze the effect of changes in inflation and currency rates on the project economic viability. Results show that the proposed site enjoys excellent wind power potential with respect to wind power density of 971.4 W/m2 at 100 meters height. Economic analysis indicates that the project is viable when its budget is supplied through governmental resources (providing US dollar at governmental rate). However, sensitivity analysis reveals that the project is no longer viable when its budget is supplied through foreign exchange market (providing US dollar at market currency rate). Therefore, this paper suggests that if government tends to support development of wind energy in Iran, it is necessary to either provide the project budget by governmental resources (4200 T/$) or buy electricity higher than 1391.6 T/kWh (845.6 T/kWh more than current feed-in-tariff). Furthermore, nonlinear relationship between net present value (NPV) and inflation shows that reduction in inflation can significantly improve the investment payoff.