نتایج جستجو برای: thermal pollution

تعداد نتایج: 285865  

2017
Shuai Chen Paulina Oliva Peng Zhang

This paper looks at the e↵ects of air pollution on migration in China using changes in the average strength of thermal inversions over five-year periods as a source of exogenous variation for medium-run air pollution levels. Our findings suggest that air pollution is responsible for large changes in inflows and outflows of migration in China. More specifically, we find that independent changes ...

2017

Atmosphere a system that plays a vital role in many natural processes, such as the formation of the global climate, the composition of the chemical components of the oceans and seas. The penetration of the earth’s surface solar radiation and heat the delay in the earthly space, depends on the gas composition of the atmosphere [1]. The problem of air pollution one of the greatest global challeng...

Journal: :gas processing 0
mohammad-ali ramezani mechanical and aerospace faculty, islamic azad university, science and research branch, tehran, iran majid amidpour mechanical engineering faculty, energy system group, kntoosi university of technology, tehran, iran mohammad najafi mechanical and aerospace faculty, islamic azad university, science and research branch, tehran, iran majid abbaspour environment and energy faculty, islamic azad university, science and research branch, tehran, iran

in recent years, using new methods in utilization of energy resources has become necessary due to environmental pollution and restriction of energy resources. the hybrid system presented in this article produced power with sofc and stirling engine. the purpose is to analyze a 50 kw solid oxide fuel cell that could produce enough thermal energy for a 10 kw stirling engine working in the hybrid s...

2017
Nasser Morgan Diaa Ibrahim Ahmed Samir

The current work demonstrates the feasibility of atmospheric pressure non-thermal plasma technique for NOx pollution control. Atmospheric pressure dielectric barrier discharge plasma reactor has been constructed for the treatment of the exhaust of 4kWs free load diesel engine. The nature and properties of the discharge were identified through studying electrical characterization of the discharg...

2017
Bin Sang Zhi-wei Li Xiao-hong Li Lai-gui Yu Zhi-jun Zhang

Most polymers exhibit high flammability and poor degradability, which restrict their applications and causes serious environmental problem like "white pollution." Thus, titanate nanotubes (TNTs) were adopted to decorate graphene oxide (GO) by a facile solution method to afford TNTs/GO nanocomposites with potential in improving the flame retardancy and photodegradability of flexible polyvinyl ch...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1382

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

Journal: :Journal of environmental management 2009
Runliang Zhu Jianxi Zhu Fei Ge Peng Yuan

Clay minerals modified with organic ions, also known as organoclays, have found applications in a wide range of organic pollution control fields because of their excellent sorption capacity towards organic pollutants. Regeneration of the spent organoclays after the sorption of organic pollutants is of great importance during their application in pollution control. In this review, the reported m...

2017
Yucong Miao Jianping Guo Shuhua Liu Huan Liu Zhanqing Li Wanchun Zhang Panmao Zhai

Meteorological conditions within the planetary boundary layer (PBL) are closely governed by large-scale synoptic patterns and play important roles in air quality by directly and indirectly affecting the emission, transport, formation, and deposition of air pollutants. Partly due to the lack of long-term fine-resolution observations of the PBL, the relationships between synoptic patterns, PBL st...

2007
Samuel Kofi Baidoo

Background and Objectives: Pollution of the environment has become one of the very serious problems in the world. Factors contributing to these problems are both natural causes and man created activities. As livestock production intensifies, air, water and soil pollution becomes a problem. Utilization of feedstuffs especially by young pigs is influenced by the presence of anti-nutritional facto...

Journal: Pollution 2018

The present study applies the model of American Meteorological Society-Environmental Protection Agency Regulatory Model (AERMOD) to investigate NO2 emissions from Besat thermal power plant, which is fuelled by natural gas to function. Results indicate that the simulated concentration of NO2 based on AERMOD, does not exceed NO2 concentration limit, set by the Iranian Ambient Air Quality Standard...

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