scholarly journals Influence of ambience temperature and operational-constructive parameters on landfill gas generation: Case study Novi Sad

2010 ◽  
Vol 14 (2) ◽  
pp. 555-564
Author(s):  
Goran Vujic ◽  
Nebojsa Jovicic ◽  
Maja Petrovic-Djurovic ◽  
Dejan Ubavin ◽  
Branka Nakomcic ◽  
...  
Keyword(s):  
Alternative Energy ◽  
Landfill Gas ◽  
Energy Utilization ◽  
Gas Generation ◽  
Methane Generation ◽  
Alternative Energy Sources ◽  
And Migration ◽  
Novi Sad ◽  
Resources Exploitation

Researches in the area of landfill gas generation and energy utilization are currently underway and widespread in the world for several reasons: reducing effects of greenhouse gases, possibilities for utilizing alternative energy sources, reducing conventional energy resources exploitation, and environmental protection. First part of this research is conducted with an aim to establish the influence of meteorological parameters, primarily ambience temperature, on the methane generation processes at Novi Sad landfill. The second part of the research refers to functional characteristics of landfill such as the waste age, closing practice, and the age of certain parts of landfill body, as well as the waste depth and quantity of generated methane. Based on several years of investigation, it is concluded that methane generation varies in the range of 0-34 vol.% m3/m3, and that seasonal variations have significant influence on methane generation. At low temperatures, during winter, methane generation and migration is stagnant while in summer periods, due to higher temperatures, the process of methane generation is more intensive.

Wind Potential Assessment for the Utilization from Wind Energy in the Household Level: A Case Study of Nakhonratchasima Thailand

2016 ◽  
Vol 835 ◽  
pp. 749-752
Author(s):  
Yuttachai Keawsuntia
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Alternative Energy ◽  
Energy Resource ◽  
Energy Utilization ◽  
Distribution Method ◽  
Household Level ◽  
Wind Speed Data ◽  
Wind Potential

Wind energy is an important alternative energy resource because of it clean, does not cause pollution and it can be used as replacement of a fossil fuel energy. Utilization of the wind energy, the wind speed data has to be analyzed to make sure before use it. In this article is to present the wind speed data analysis by using Weibull distribution method. Wind speed data from the meteorological station at Pakchong district, Nakhonratchasima province, Thailand was used as the case study. The results show that this area has wind speed about 2.5 to 3.5 m/s. The average wind power density was 17.513 W/m2 and the total wind energy was 153.9819 kW·hr/m2 per year. This wind potential of this area can be used for water pumping and electricity generating for use in a household.

Global Potential of Biomass: Heat, Electricity and Liquid and Gaseous Fuels Markets

2006 ◽  
Author(s):  
Jude Iyinbor ◽  
Ogunrinde Abayomi
Keyword(s):  
Environmental Effects ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
Energy Utilization ◽  
Energy Sources ◽  
Gaseous Fuels ◽  
Alternative Energy Sources ◽  
Oil Sector ◽  
Market Factors

Negative environmental effects, diminishing fossil fuel sources and soaring oil prices are some of the pertinent factors militating against the long term usage of fossil fuels. These make the introduction of alternative energy sources an integral part of our global energy plan. On the contrary, established fossil fuel infrastructures, flexibility of fossil fuels and economic gains from the oil sector are a few reasons why there is a global attitude of ‘drill the last drop before developing sustainable alternatives’. There are various energy sources that have little environmental effects and are sustainable (e.g. wind, geothermal, solar, hydro, biomass, e.t.c.), but the potentials they do have when it comes to the major energy utilization forms (heat, electricity and liquid and gaseous fuels) will be a key determinant of how alternative energy sources will be able to match the seemingly invincible presence of fossil fuels. The biomass option is examined in this report considering its potential with respect to heat, electricity and liquid and gaseous fuels market. Factors that may favour or hinder its potential and suitable solutions on how the potential can be increased are also discussed.

Sustainable Cinema

2018 ◽  
pp. 82-100
Author(s):  
Scott Hessels
Keyword(s):  
Natural Environment ◽  
Alternative Energy ◽  
Natural World ◽  
Energy Sources ◽  
Art Making ◽  
Power Sources ◽  
Moving Image ◽  
Optical Illusions ◽  
Alternative Energy Sources

Beyond mere inspiration, a subset of artists have given the natural world a more influential role in the outcome of their work. By harnessing the physics, biology, and ecology of the natural environment as artistic tools, they have used natural phenomena as a co-creator in their art-making practices. This use of natural force impacting the actual form of an artwork can also extend into moving image arts. Sustainable Cinema is a series of kinetic public sculptures that merge natural power sources with early optical illusions to create a moving image. The variations within this series now cover seven distinct image generating systems, multiple animation narratives, and several alternative energy sources. This chapter reviews each sculpture in form, content and site and discusses how collectively they create a case study for a larger perspective on culture's relationship with the forces of nature and the materiality of the moving image.

scholarly journals Modeling of Methane Gas Generation and Emissions from Landfills

2021 ◽  
Author(s):  
Khanam Mahbuba
Keyword(s):  
Landfill Gas ◽  
Assessment Model ◽  
Waste Streams ◽  
Gas Generation ◽  
National Assessment ◽  
Methane Generation ◽  
Methane Gas ◽  
Gas Recovery ◽  
Recovery Percentage

This study was carried out to develop a model capable of predicting the generation and potential emission of methane gas into the environment. Ryerson Landfill Gas Model (RLFGM) was developed using the IPCC tier two model (revised guidelines), the most recent national assessment model (Brown et. al. 1999) from UK and the model developed from DEFRA, UK. This report outlines the findings of the study and its recommendations. The study was performed on detailed characterization of solid waste as RDO, MDO and SDO and by dividing these waste components into nine waste fractions. The waste fractions are described by the percentage of moisture content of the fraction, the proportion of cellulose and hemi-cellulose, and the percentage of the degradability of the cellulose and hemi-cellulose fraction. Methane generating potential (L₀) was calculated from DOC and DOC(subscript f) value. The three methane generation rate constants (k) were used. Methane oxidation, methane correction factor, percentage of methane gas recovery, percentage of methane content in landfill gas were assumed based on comprehensive literature review. After the verification of the output of the RLFGM model with the LandGEM model it was found that the model is producing similar type of output graph as the LandGEM model but the rate of emissions of methane gas into the environment is lower in RLFGM model. It has been concluded that RLFGM model gives the realistic output with respect to individual landfill sites, taking into account of specific waste streams and deposition rates.

Gender Ideologies and Climate Risk

2022 ◽  
pp. 914-929
Author(s):  
Kareem Buyana ◽  
Shuaib Lwasa ◽  
Peter Kasaija
Keyword(s):  
Alternative Energy ◽  
Gender Ideologies ◽  
Climate Risks ◽  
Alternative Energy Sources ◽  
Trade Offs ◽  
Climatic Hazards ◽  
Dry Spells ◽  
Climate Uncertainty ◽  
Neighborhood Scale

Although African cities are nodes of scalable solutions to climate uncertainty, adaptation efforts rarely build on the gender-climate nexus for sustainability. This article examines how gender ideologies intersect with climate risks, based on case study findings from Kampala in Uganda. Climatic hazards in Kampala include prolonged dry spells and seasonal floods; which destroy infrastructure, contaminate air and lead to unprecedented spread of cholera and malaria. Both conventional and emancipatory gender ideologies are characteristic of how the gender-climate nexus shapes adaptation at neighborhood scale. Women, as custodians of domestic hygiene, navigate the health risks of flooding through trade-offs among competing uses of their time and labour, as men comply with the masculinity code of family safety to repair flooded homes and drainages. Emancipatory gender ideologies on the other hand are manifested by women's and men's agency to adopt alternative energy sources and urban greening that have potential for sustainability.

Switching to Clean Energy: A Milestone for Energy Security and Economic Advantage for Nepal

2018 ◽  
Vol 1 (1) ◽  
pp. 20-23
Author(s):  
Chet Narayan Acharya
Keyword(s):  
Energy Security ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Green Energy ◽  
Energy Utilization ◽  
Living Standard ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Development Agenda

With the world-wide wave of economic development and improved traditional living standard of people, consumption of fuel has also increased significantly. Exponential growth in use of fossil fuel and its impacts compelled to search for alternative energy sources. Green energy is that source of energy that is naturally restocked. Nepal is rich enough country for renewable energy sources even though, could not accelerate growth and development agenda.  Appropriate policy and planning of green energy would help to give a big push to break development hazards and would contribute for economic freedom and energy security.  This paper attempts to scrutinize and understand the green energy utilization, proper management and exploring the capacity of the Nepalese economy.

DESENVOLVIMENTO DE UM SISTEMA DE CARACTERIZAÇÃO DAS CARGAS COMO AUXÍLIO DE DECISÃO NA ADESÃO DA MELHOR MODALIDADE TARIFÁRIA

2020 ◽  
Vol 03 (01) ◽  
pp. 14-26
Author(s):  
Elberto Carmo ◽  
Keyword(s):  
Alternative Energy ◽  
New Technologies ◽  
Demand Curve ◽  
Electricity Sector ◽  
Consumer Attitude ◽  
Load Curve ◽  
Fundamental Factor ◽  
Alternative Energy Sources ◽  
Demand Curves

The Brazilian electricity sector currently needs a technological and sustainable reform to boost the country development. At the same time, restructuring has been taking place around the world through the insertion of alternative energy sources, new tariffs systems, the adaptation of new technologies and habits changes that have an impact on energy consumption. The consumer attitude towards the electric power consumption is a fundamental factor against the economic, social and environmental perspectives, praising the importance of having a population engaged and aware about their consumption acts impacts. Starting from the point that access to information and knowledge is the way to achieve significant changes, this study presents the development of a system for load characterization in white, conventional or horo-seasonal tariff modalities - according to consumer classification - in order to obtain comparison parameters that aid in the decision making as to the adhesion to the most appropriate tariff modality. The research techniques used were the bibliography and case study based on energy loads from a supermarket in the city of Vitoria, ES. In this way, after receiving the input parameters, load configuration and consumption schedules, the system generates the values associated to the tariffs rates and tariff calculations. Furthermore, the system presents the monthly load curve and the electric consumption profile of an installation from the survey of equipment possessions and use habits. The system developed based on the loads in a supermarket and proved successful in processing the demand curves. Keywords: Demand Curve. Tariff Modalities. Consumption Management

Gender Ideologies and Climate Risk

2019 ◽  
Vol 10 (1) ◽  
pp. 16-30 ◽  
Author(s):  
Kareem Buyana ◽  
Shuaib Lwasa ◽  
Peter Kasaija
Keyword(s):  
Alternative Energy ◽  
Urban Greening ◽  
Gender Ideologies ◽  
Climate Risks ◽  
Alternative Energy Sources ◽  
Trade Offs ◽  
Climatic Hazards ◽  
Dry Spells ◽  
Neighborhood Scale

Although African cities are nodes of scalable solutions to climate uncertainty, adaptation efforts rarely build on the gender-climate nexus for sustainability. This article examines how gender ideologies intersect with climate risks, based on case study findings from Kampala in Uganda. Climatic hazards in Kampala include prolonged dry spells and seasonal floods; which destroy infrastructure, contaminate air and lead to unprecedented spread of cholera and malaria. Both conventional and emancipatory gender ideologies are characteristic of how the gender-climate nexus shapes adaptation at neighborhood scale. Women, as custodians of domestic hygiene, navigate the health risks of flooding through trade-offs among competing uses of their time and labour, as men comply with the masculinity code of family safety to repair flooded homes and drainages. Emancipatory gender ideologies on the other hand are manifested by women's and men's agency to adopt alternative energy sources and urban greening that have potential for sustainability.

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