目的对成都市某太阳能光伏组件生产项目的职业病危害进行定性与定量分析,评估该项目职业病危害控制效果,为该行业职业病危害控制措施提供建议。方法通过职业卫生调查,识别太阳能光伏组件生产项目主要存在的职业病危害因素;通过检测检验...目的对成都市某太阳能光伏组件生产项目的职业病危害进行定性与定量分析,评估该项目职业病危害控制效果,为该行业职业病危害控制措施提供建议。方法通过职业卫生调查,识别太阳能光伏组件生产项目主要存在的职业病危害因素;通过检测检验,分析主要职业病危害因素的危害程度,再通过调查生产现场的职业病危害控制措施,综合评估该项目职业病危害控制措施的有效性。结果经现场检测,各岗位操作人员噪声接触值在61.0~72.6 d B(A)之间,8 h等效声压级未超过85 d B(A)的限值;二氧化锡检测最大值为0.98 mg/m^3,计算时间加权平均浓度,各岗位最大值为0.8 mg/m^3;异丙醇检测最大值为12.73 mg/m^3,时间加权平均浓度各岗位最大值为9.02 mg/m^3。结论成都某太阳能光伏组件生产项目职业病危害因素能够得以有效控制,该项目所采取的控制措施有效可行。展开更多
This paper introduces several alternative statistical approaches to modeling and prediction of electric energy generated by photovoltaic farms. The statistical models use outputs of a numerical weather prediction mode...This paper introduces several alternative statistical approaches to modeling and prediction of electric energy generated by photovoltaic farms. The statistical models use outputs of a numerical weather prediction model as their inputs. Presented statistical models allow for easy-to-compute predictions, both in temporal sense and for out-of-sample individual farms. Model performance is illustrated on a sample of real photovoltaic farms located in the Czech Republic.展开更多
The conversion of solar energyinto electricity reveals a huge importance in the production of＂clean＂ energy, mainly when applied to decentralized production systems （micro-generation）. However, there is the need t...The conversion of solar energyinto electricity reveals a huge importance in the production of＂clean＂ energy, mainly when applied to decentralized production systems （micro-generation）. However, there is the need to develop and optimize these processes in order to turn it more sustainable in economic and technological scoops. The main purpose of this work is to study the solar energy conversion into electricity through photovoltaic cells, characterizing the process efficiencies. This study intends to evaluate the energetic and exergetic efficiencies defining them as indicators in the formulation ofa sustainability index. All the procedures are in a theoretical scope with an illustrative example in the end of this work.展开更多
Electrical energy consumption is growing and is necessary to improve the technologies related to energy production. We have carried out a pilot study about environmental impacts during the manufacturing process of PV ...Electrical energy consumption is growing and is necessary to improve the technologies related to energy production. We have carried out a pilot study about environmental impacts during the manufacturing process of PV （photovoltaic） modules and compared between the energy requirement for the production of PV cells and modules and generation throughout the life time of the finished good that is PV module. It was taken into account the generation of environmental aspects and impacts in the manufacture of monocrystalline silicon PV modules （consisting of three components： silicon cell, fiat tempered glass and aluminum frame）, and an analysis of a grid-connected PV system using an energetic alternative in residences was considered. Results show that, this kind of renewable energy is really clean and can be considered as a way to change the energy technology.展开更多
文摘目的对成都市某太阳能光伏组件生产项目的职业病危害进行定性与定量分析,评估该项目职业病危害控制效果,为该行业职业病危害控制措施提供建议。方法通过职业卫生调查,识别太阳能光伏组件生产项目主要存在的职业病危害因素;通过检测检验,分析主要职业病危害因素的危害程度,再通过调查生产现场的职业病危害控制措施,综合评估该项目职业病危害控制措施的有效性。结果经现场检测,各岗位操作人员噪声接触值在61.0~72.6 d B(A)之间,8 h等效声压级未超过85 d B(A)的限值;二氧化锡检测最大值为0.98 mg/m^3,计算时间加权平均浓度,各岗位最大值为0.8 mg/m^3;异丙醇检测最大值为12.73 mg/m^3,时间加权平均浓度各岗位最大值为9.02 mg/m^3。结论成都某太阳能光伏组件生产项目职业病危害因素能够得以有效控制,该项目所采取的控制措施有效可行。
文摘This paper introduces several alternative statistical approaches to modeling and prediction of electric energy generated by photovoltaic farms. The statistical models use outputs of a numerical weather prediction model as their inputs. Presented statistical models allow for easy-to-compute predictions, both in temporal sense and for out-of-sample individual farms. Model performance is illustrated on a sample of real photovoltaic farms located in the Czech Republic.
文摘The conversion of solar energyinto electricity reveals a huge importance in the production of＂clean＂ energy, mainly when applied to decentralized production systems （micro-generation）. However, there is the need to develop and optimize these processes in order to turn it more sustainable in economic and technological scoops. The main purpose of this work is to study the solar energy conversion into electricity through photovoltaic cells, characterizing the process efficiencies. This study intends to evaluate the energetic and exergetic efficiencies defining them as indicators in the formulation ofa sustainability index. All the procedures are in a theoretical scope with an illustrative example in the end of this work.
文摘Electrical energy consumption is growing and is necessary to improve the technologies related to energy production. We have carried out a pilot study about environmental impacts during the manufacturing process of PV （photovoltaic） modules and compared between the energy requirement for the production of PV cells and modules and generation throughout the life time of the finished good that is PV module. It was taken into account the generation of environmental aspects and impacts in the manufacture of monocrystalline silicon PV modules （consisting of three components： silicon cell, fiat tempered glass and aluminum frame）, and an analysis of a grid-connected PV system using an energetic alternative in residences was considered. Results show that, this kind of renewable energy is really clean and can be considered as a way to change the energy technology.
