نتایج جستجو برای: energy resource

تعداد نتایج: 863838  

The energy requirement of vacuum membrane distillation (VMD) with or without recirculation was modelled using both experimental results and theoretical data. The trends are generally consistent between the theoretical and experimental data. Thermal energy contributes the most to the total energy required for the VMD process. To lower the thermal energy cost, waste heat resource and heat recover...

In this paper, a dynamic optimization approach for optimal choice of energy carriers in thermal power plants is proposed that analyzes the substitution of energy carriers in short-term planning of a power plant.The model is based on the linear programming method with the objective of minimizing costs under constraints of resource availability, energy balances, environmental regulations and elec...

2002
Dong-In Kang Stephen P. Crago Jinwoo Suh

We consider a resource synthesis technique for realtime systems where the energy budget is limited and the performance of the system depends on how resources and energy are used. We consider two performance models for a task: (1) a task has variable execution time and performance of a task depends on the amount of execution time received and (2) the execution time of a task is constant and the ...

2002
Dong-In Kang Stephen P. Crago Jinwoo Suh

We consider a resource synthesis technique for realtime systems where the energy budget is limited and the performance of the system depends on how resources and energy are used. We consider two performance models for a task: (1) a task has variable execution time and performance of a task depends on the amount of execution time received and (2) the execution time of a task is constant and the ...

ژورنال: انرژی ایران 2017

For decreasing the amount of air pollution and green gas emission and saving fossil fuels resource, one of the ways is extending renewable energy utilization. Hence, this yields to growth and development of Photovoltaic systems. Nowadays due to increasing electrical energy requirements and ability to privately providing required energy, the use of solar energy and its electrical power creativit...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

Journal: :Environmental Research Letters 2018

Journal: :Journal of Cleaner Production 2021

The global transition to fundamentally decarbonized electricity and transport systems will alter the existing resource flows of both fossil fuels metals; however, such a may have unintended consequences. Here we show that decarbonization sectors curtail fuel production while paradoxically increasing extraction associated with metal by more than factor 7 2050 relative 2015 levels. Importantly, a...

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