scholarly journals Assessment of Power Generation Using Biogas from Landfills in an Equatorial Tropical Context

2020 ◽  
Vol 12 (7) ◽  
pp. 2669 ◽  
Author(s):  
Antonio Barragán-Escandón ◽  
Jonathan Miguel Olmedo Ruiz ◽  
Jonnathan David Curillo Tigre ◽  
Esteban F. Zalamea-León
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Power Plant ◽  
Mathematical Models ◽  
Electricity Generation ◽  
Biogas Production ◽  
Production Potential ◽  
Attractive Option ◽  
Traditional Technologies ◽  
Generation Technology

This work evaluates the biogas production potential of the Ceibales landfill for feeding a power plant in the southern region of Ecuador. Biogas production is estimated through mathematical models that consider energy generation and technologies available to supply electricity plants. Characteristic landfill data are accounted for to analyze and develop these mathematical models. Once the generation capability of each source is identified, a decision can be made on the most suitable electricity generation technology. A local model (Ecuadorian model) is applied to calculate the potential of biogas and is compared with other models commonly used for evaluating this type of project. This type of renewable energy is attractive because it produces electricity from waste; however, it is not an attractive option unless its application is encouraged, as hydro has been encouraged through the investment of taxpayer resources. Technologies require a boost to become profitable, and even more so if they compete with traditional technologies.

scholarly journals Regional Diversification of Potential, Production and Efficiency of Use of Biogas and Biomass in Poland

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 742
Author(s):  
Grzegorz Ślusarz ◽  
Barbara Gołębiewska ◽  
Marek Cierpiał-Wolan ◽  
Jarosław Gołębiewski ◽  
Dariusz Twaróg ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Biomass Production ◽  
Biogas Production ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Efficiency Frontier ◽  
The European Union ◽  
Production Potential ◽  
Solid Biomass ◽  
High Share

Energy obtained from renewable sources is an important element of the sustainable development strategy of the European Union and its member states. The aim of this research is, therefore, to assess the potential and use of renewable energy sources and their effectiveness from the regional perspective in Poland. The research covered the years 2012 and 2018. The diversification of production and potential of renewable energy sources was defined on the basis of biogas and biomass. Calculations made using the data envelopment analysis (DEA) method showed that, in 2012, only three voivodeships achieved the highest efficiency in terms of the use of biogas and biomass resources; in 2018, this number increased to four. Comparing the effective units in 2012 and 2018, it can be seen that their efficiency frontier moved upwards by 56% in terms of biogas and 21% in terms of to biomass. Despite a large relative increase in the production of heat from biogas by 99% compared to the production of heat from biomass by 38%, the efficiency frontier for biogas did not change considerably. It was found that the resources of solid biomass are used far more intensively than the resources of biogas. However, in the case of biogas, a significant increase in the utilization of the production potential was observed: from 3.3% in 2012 to 6.4% in 2018, whereas in the same years, the utilization of solid biomass production potential remained at the same level (15.3% in 2012, 15.4% in 2018). It was also observed that, at the level of voivodeships, the utilization of biogas and biomass production potential is negatively correlated with the size of this potential. The combined potential of solid biomass and biogas can cover the demand of each of the studied regions in Poland in terms of thermal energy. The coverage ranges from 104% to 1402%. The results show that when comparing biomass and biogas, the production of both electricity and heat was dominated by solid biomass. Its high share occurred especially in voivodeships characterized by a high share of forest area and a low potential for biogas production (Lubuskie Voivodeship, Zachodniopomorskie Voivodeship).

Solar Chimney Power Plant - A Review on Latest Technological Advances for Performance Enhancement

2021 ◽  
Vol 9 (VI) ◽  
pp. 2434-2443
Author(s):  
Sreelekha Arun
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Performance Enhancement ◽  
Mechanical Energy ◽  
Technological Advancement ◽  
Solar Chimney ◽  
Air Turbine ◽  
Power Generation Technology ◽  
Solar Chimney Power Plant ◽  
Generation Technology

The energy consumption on global scale is continuously increasing, resulting in rapid use of energy resources available. Solar chimney power generation technology hence began to get growing attention as its basic model needs no depleting resources like fossil fuels for its functioning but only uses sunlight and air as a medium. It takes the advantage of the chimney effect and the temperature difference in the collector that produces negative pressure to cause the airflow in the system, converting solar energy into mechanical energy in order to drive the air turbine generator situated at the base of the chimney. Solar Chimney Power Plant (SCPP) brings together the solar thermal technology, thermal storage technology, chimney technology and air turbine power generation technology. However, studies have shown that even if the chimney is as high as 1000 m, the efficiency achievable is only around 3%. Hence, this review paper intents to put together the new technological advancement that aims to improve the efficiency of SCPP.

Sustainability assessment of gas based power generation using a life cycle assessment approach

2018 ◽  
Vol 29 (5) ◽  
pp. 826-841 ◽  
Author(s):  
Binita Shah ◽  
Seema Unnikrishnan
Keyword(s):  
Power Generation ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Power Plant ◽  
Natural Gas ◽  
Environmental Impacts ◽  
Electricity Generation ◽  
Lca Methodology ◽  
Iso 14040 ◽  
Content Type

Purpose India is a developing economy along with an increasing population estimated to be the largest populated country in about seven years. Simultaneously, its power consumption is projected to increase more than double by 2020. Currently, the dependence on coal is relatively high, making it the largest global greenhouse gas emitting sector which is a matter of great concern. The purpose of this paper is to evaluate the environmental impacts of the natural gas electricity generation in India and propose a model using a life cycle assessment (LCA) approach. Design/methodology/approach LCA is used as a tool to evaluate the environmental impact of the natural gas combined cycle (NGCC) power plant, as it adopts a holistic approach towards the whole process. The LCA methodology used in this study follows the ISO 14040 and 14044 standards (ISO 14040: 2009; ISO 14044: 2009). A questionnaire was designed for data collection and validated by expert review primary data for the annual environmental emission was collected by personally visiting the power plant. The study follows a cradle to gate assessment using the CML (2001) methodology. Findings The analysis reveals that the main impacts were during the process of combustion. The Global warming potential is approximately 0.50 kg CO2 equivalents per kWh of electricity generation from this gas-based power plant. These results can be used by stakeholders, experts and members who are authorised to probe positive initiative for the reduction of environmental impacts from the power generation sector. Practical implications Considering the pace of growth of economic development of India, it is the need of the hour to emphasise on the patterns of sustainable energy generation which is an important subject to be addressed considering India’s ratification to the Paris Climate Change Agreement. This paper analyzes the environmental impacts of gas-based electricity generation. Originality/value Presenting this case study is an opportunity to get a glimpse of the challenges associated with gas-based electricity generation in India. It gives a direction and helps us to better understand the right spot which require efforts for the improvement of sustainable energy generation processes, by taking appropriate measures for emission reduction. This paper also proposes a model for gas-based electricity generation in India. It has been developed following an LCA approach. As far as we aware, this is the first study which proposes an LCA model for gas-based electricity generation in India. The model is developed in line with the LCA methodology and focusses on the impact categories specific for gas-based electricity generation.

scholarly journals Does Combined Heat and Power Play the Role of a Bridge in Energy Transition? Evidence from a Cross-Country Analysis

2019 ◽  
Vol 11 (4) ◽  
pp. 1035 ◽  
Author(s):  
Hyo-Jin Kim ◽  
Jeong-Joon Yu ◽  
Seung-Hoon Yoo
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Electricity Generation ◽  
Nuclear Power ◽  
Energy Transition ◽  
Parameter Estimate ◽  
Combined Heat And Power ◽  
Cross Country ◽  
The Impact

In an era of energy transition involving an increase in renewable energy and a reduction in coal-fired power generation and nuclear power generation, the role of combined heat and power (CHP) as a bridging energy is highly emphasized. This article attempts to look empirically into the impact of increasing the share of renewable energy in total electricity generation on CHP share in total electricity generation in a cross-country context. Data from 35 countries during the period 2009–2015 were used, and the least absolute deviations estimator was applied to obtain a more robust parameter estimate. The results showed that a 1%p increase in the share of renewable energy significantly increased the CHP share by 0.87%p. Therefore, the hypothesis that CHP serves as bridge energy in the process of energy transition was established.

scholarly journals Solar thermal power generation technology research

2019 ◽  
Vol 136 ◽  
pp. 02016
Author(s):  
Yudong Liu ◽  
Fangqin Li ◽  
Jianxing Ren ◽  
Guizhou Ren ◽  
Honghong Shen ◽  
...  
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Renewable Resources ◽  
Solar Power ◽  
Thermal Power ◽  
Solar Photovoltaic ◽  
Photovoltaic Power ◽  
Power Generation Technology ◽  
Generation Technology ◽  
Solar Thermal Power Generation

China is a big consumer of energy resources. With the gradual decrease of non-renewable resources such as oil and coal, it is very important to adopt renewable energy for economic development. As a kind of abundant renewable energy, solar power has been widely used. This paper introduces the development status of solar power generation technology, mainly introduces solar photovoltaic power generation technology, briefly describes the principle of solar photovoltaic power generation, and compares and analyzes four kinds of solar photovoltaic power generation technology, among which photovoltaic power generation technology is the most mature solar photovoltaic power utilization technology at present.

The Application of Biogas Power Generation Technology - in Dafeng City Haifeng Dairy Farm Biogas Power Generation Projects, for Example

2014 ◽  
Vol 953-954 ◽  
pp. 321-324
Author(s):  
Guo Li Yu ◽  
Dong Yang ◽  
Meng Zhang ◽  
Shao Lin Wang
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Project Success ◽  
Dairy Farm ◽  
Generation System ◽  
Important Approach ◽  
Power Generation Technology ◽  
Power Generation System ◽  
Hair Development ◽  
Generation Technology

With the renewable energy more and more get people's attention, biogas power generation system will have a good hair development prospect. Dafeng city haifeng dairy farm biogas power generation project success running showed that biogas power generation has a certain application prospect, and the use of marsh fertilizer is an important approach to improve the running efficiency of biogas engineering.

scholarly journals Decisions in Power Supply Chain with Emission Reduction Effort of Coal-Fired Power Plant under the Power Market Reform

2020 ◽  
Vol 12 (16) ◽  
pp. 6582
Author(s):  
Lingyan Xu ◽  
Fenglian Huang ◽  
Jianguo Du ◽  
Dandan Wang
Keyword(s):  
Power Generation ◽  
Supply Chain ◽  
Renewable Energy ◽  
Power Plant ◽  
Power Supply ◽  
Emission Reduction ◽  
Cost Coefficient ◽  
Reduction Cost ◽  
Reduction Effort ◽  
Preference Coefficient

Sustainability in power supply chain has been supported by emission reduction of coal-fired power generation and increasing renewable energy power generation. Under the power market reform of direct power purchase transactions, this paper focuses on the channel selection and emission reduction decisions of power supply chain. From the theoretical perspective, this paper develops the decision-making models of centralized and decentralized power supply chain, which consist of one renewable energy power generation enterprise, one coal-fired power plant and one power grid enterprise. The optimal strategies of power quantities and profits for power supply chain members and their corresponding numerical experiments are analyzed in different cases. The results show that there are qA1Nc*<qA1Lc* for renewable energy power generation enterprise A, qB1Nc*>qB1Lc* and eBNc*>eBLc* for coal-fired power plant B, which indicate that the direct power purchase channel in the centralized scenario is conducive to promoting the transaction quantity of renewable energy power generation, as well as the on-grid power quantity and emission reduction efforts of coal-fired power plant B. Furthermore, the profit of whole power supply chain could be enhanced by the increasing on-grid power preference coefficient of coal-fired power generation, subsidy for renewable energy power generation and preference coefficient for clean production, and by the decreasing emission reduction cost coefficient of coal-fired power plant. Additionally, the emission reduction effort of coal-fired power plant is positively relevant with preference coefficient for clean production, whereas it is negatively relevant with power grid wheeling charge, emission reduction cost coefficient and subsidy for renewable energy power generation. Our findings can provide useful managerial insights for policymakers and enterprises in the sustainability of power supply chain.

Development of Wave Power Generation Technology

2012 ◽  
Vol 512-515 ◽  
pp. 905-909
Author(s):  
Cui Ping Kuang ◽  
Peng Chen Liu ◽  
Yi Pan ◽  
Jie Gu
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Wave Energy ◽  
Wave Power ◽  
Existing Problems ◽  
Ocean Wave Energy ◽  
Power Generation Technology ◽  
Increasing Demand ◽  
Generation Technology ◽  
Wave Power Generation

With the increasing demand of energy, as a clean green renewable energy, ocean wave energy is paid much attention by the countries especially those along coasts. So far, wave power generation technology has experienced decades of development. In this paper, the development and the main wave power generation devices are introduced, moreover, the latest applications of wave energy and existing problems on wave power generation technology are presented.

scholarly journals HYDROGEN PRODUCED BY SOLAR ENERGY AND THEIR USE AS CLEAN FUEL FOR POWER GENERATION IN A COMBINED CYCLE POWER PLANT

2016 ◽  
Vol 15 (1) ◽  
pp. 41
Author(s):  
J. C. Restrepo ◽  
O. J. Venturini ◽  
E. E. Silva ◽  
L. A. Cortabarria
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Solar Energy ◽  
Electricity Generation ◽  
Combined Cycle ◽  
Energy Utilization ◽  
Main Process ◽  
Clean Fuel ◽  
Combined Cycle Power Plant ◽  
Production Of Hydrogen

The solar energy is one of the most promising energy sources expected for the future, due at their huge potential and the wide availability around the world. However, nowadays this important source of energy is not being harnessed or even addressed in their full potential. According to the last statements, it is important to develop solar energy conversion systems of high efficiency, as well as spreading its use in other forms besides the traditional systems of electric power generation or heating systems. For this reason, in this paper, it is explored the production of hydrogen through solar energy utilization, and the later electrical energy production by burning the produced hydrogen in a combined cycle power plant. The process was modelled for 3 MWe of electricity generation, and using the organic Rankine cycle. The main process for producing hydrogen from water using solar energy is based on a two steps redox thermochemical cycle, which has a theoretical conversion efficiencies of 54% at 1600 K. It is expected that this paper could contributed to the development of ways to enable a better integration of the solar energy with the current electricity generation technologies, as well as to incentive the use of the hydrogen as a clean fuel.

scholarly journals Suitability assessment for electricity generation through renewable sources: towards sustainable energy production

2021 ◽  
Vol 11 (1) ◽  
pp. 109-122
Author(s):  
Eduardo Pérez-Denicia ◽  
Fabián Fernández-Luqueño ◽  
Darnes Vilariño-Ayala
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Electricity Generation ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
The United States ◽  
Appropriate Technology ◽  
Biomass Energy ◽  
Economic Damage ◽  
Renewable Sources

Power generation through renewable sources is an effective alternative to mitigate climate change as its environmental impact is lower compared to fossil fuels. However, socio-economic problems are constant in sites where power plants are installed, especially in developing countries. In this paper, an innovative methodology was developed to assess the suitability of electricity generation through solar, wind, and biomass energy. Unlike most studies found in scientific literature, this work considers social, environmental, and economic aspects as key to determine the suitability of energy projects. First, we carried out a comprehensive analysis on social acceptance and resilience towards renewable energy and the conditions for communities to benefit from these projects; then, we analyzed the availability and capacity of renewable energy sources in Mexico, as a case study. Next,  a set of indicators related to the three pillars of sustainability was developed to assess the conditions of each place with the best renewable resources in the country. The life cycle and capacity factor of each technology were also considered. Lastly, a mathematical model was developed to determine the most suitable locations and technologies for power generation. The results show a trend towards the states of northern Mexico, especially those bordering the United States, as the most viable for electricity generation. The most appropriate technology is wind energy. Finally, Oaxaca, the state with the best wind resources and current leader in wind power generation in Mexico is, by contrast, the least viable state for wind generation, as has been later confirmed by scientific evidence, as wind facilities are associated with severe socio-cultural and economic damage in host communities in this state.

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