scholarly journals Biomass Potential from Agricultural Waste for Energetic Utilization in Greece

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1095 ◽  
Author(s):  
Spyridon Alatzas ◽  
Konstantinos Moustakas ◽  
Dimitrios Malamis ◽  
Stergios Vakalis
Keyword(s):  
Agricultural Waste ◽  
Combined Heat And Power ◽  
Biomass Energy ◽  
Small Scale ◽  
Energy Potential ◽  
Annual Basis ◽  
Mediterranean Countries ◽  
Biomass Resources ◽  
Gasification Technology

The alignment of the Greek national legislation with the corresponding EU legislation has enhanced the national efforts to pursue renewable Combined Heat and Power (CHP) projects. The scope of the present study has been the identification of the available biomass resources and the assessment of their potential. In this paper, we present the results from the administrative regions of Crete, Thessaly, and Peloponnese. The levels of lignocellulosic biomass in Greece are estimated to be 2,132,286 tonnes on an annual basis, values that are very close to the cases of other Mediterranean countries like Italy and Portugal. In respect to the total agricultural residues, Crete produces 1,959,124 tonnes/year and Thessaly produces 1,759,457 tonnes/year. The most significant streams are identified to be olive pits, olive pruning, and cotton ginning remnants, with more than 100,000 tonnes/year each. In the latter part of this manuscript, a case study is presented for the development of a CHP gasification facility in Messenia. The biomass energy potential of the area is very promising, with about 3,800,000 GJ/year. The proposed small-scale gasification technology is expected to utilize 7956 tonnes of biomass per year and to produce 6630 MWh of electricity and 8580 MWh of thermal energy.

scholarly journals Solid Biomass Energy Potential as a Development Opportunity for Rural Communities

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3398
Author(s):  
Mariusz Jerzy Stolarski ◽  
Paweł Dudziec ◽  
Michał Krzyżaniak ◽  
Ewelina Olba-Zięty
Keyword(s):  
Rural Communities ◽  
Rural Areas ◽  
Renewable Energy Sources ◽  
Biomass Energy ◽  
Energy Sources ◽  
Energy Potential ◽  
Development Opportunity ◽  
Biomass Resources ◽  
Administrative Units ◽  
Solid Biomass

Conventional energy sources often do not fully satisfy the needs of a modern economy, especially given the climate changes associated with them. These issues should be addressed by diversification of energy generation, including the development of renewable energy sources (RES). Solid biomass will play a major part in the process in Poland. The function of rural areas, along with a well-developed agricultural and forest economy sector, will be a key aspect in this as these areas are suitable for solid biomass acquisition in various ways. This study aimed to determine the solid biomass energy potential in the commune of Goworowo to illustrate the potential in the smallest administrative units of Poland. This research determined the environmental and natural conditions in the commune, which helped to identify the crucial usable solid biomass resources. The total energy potential of solid biomass resources in the commune of Goworowo amounted to 97,672 GJ y−1. The highest potential was accumulated in straw surplus (37,288 GJ y−1) and the lowest was in wood from roadside maintenance (113 GJ y−1). This study showed that rural areas could soon play a significant role in obtaining solid biomass, and individual communes could become spaces for the diversification of energy feedstock.

scholarly journals Biomass Sources and Energy Potential for Energy Sector in Myanmar: An Outlook

Resources ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 102 ◽  
Author(s):  
Maw Maw Tun ◽  
Dagmar Juchelková
Keyword(s):  
Renewable Energy ◽  
Total Energy ◽  
Forest Cover ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Biomass Energy ◽  
Energy Utilization ◽  
Energy Potential ◽  
Total Energy Consumption ◽  
Biomass Resources

Nowadays, renewable energy utilization plays a key role in developing countries to fulfill the additional energy requirements of a country and reduce dependency on fossil fuels and traditional biomass consumption. As Myanmar has an agriculture-based economy and 48% of forest-cover (32.2 million hectares); biomass is one of the major renewable energy sources, contributing around 50% of total energy consumption. Therefore, the study aimed to highlight the available biomass sources and energy potential for the energy sector in Myanmar. In order to achieve the aim, the study collated the types, quantity and qualities of biomass resources, and energy utilization around Myanmar. Besides, the study synthesized and evaluated the energy potential of the major biomass resources coming from the agriculture sector, forest sector, livestock and poultry sector, and municipal sector. It was estimated that the total energy potential of the major biomass sources amounted to approximately 15.19 million tons of oil equivalent (Mtoe) in 2005 and 17.29 Mtoe in 2017, respectively. The unexploited biomass energy potential around the country was estimated to be nearly 50% higher than that of the projected biomass energy utilization during 2015–2019. Finally, the study concluded with recommendations to provide the future sustainable development of biomass energy in Myanmar.

scholarly journals An Assessment of Potential Resources for Biomass Energy in Nigeria

Resources ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 92 ◽  
Author(s):  
Simeon Olatayo Jekayinfa ◽  
Joseph Ifeolu Orisaleye ◽  
Ralf Pecenka
Keyword(s):  
Large Scale ◽  
Agricultural Sector ◽  
Agricultural Residues ◽  
Energy Crops ◽  
Biomass Energy ◽  
Forest Residues ◽  
Energy Potential ◽  
Marginal Lands ◽  
Animal Wastes ◽  
Biomass Resources

Nigeria is a developing country with an insufficient supply of energy to meet the continuously growing demand. However, there are several biomass resources available within the country. This paper presents a desk review, which investigates the potential resources for biomass energy generation within the country. Energy policies to aid biomass use as an energy source within the country were also reviewed. Biomass resources identified within Nigeria include forest residues, agricultural residues, human and animal wastes, aquatic biomass, and energy crops. However, several of the resources, particularly agricultural residues, have competing uses, such as livestock feed and soil rejuvenation. An estimation of the technical energy potential of the biomass resources revealed that about 2.33 EJ could be generated from the available resources in Nigeria. Agricultural residues have an energy potential of about 1.09 EJ, with cassava, maize, oil palm, plantain, rice, and sorghum being the major contributors. Animal wastes, municipal solid waste, and forest residues have energy potentials of 0.65, 0.11, and 0.05 EJ, respectively. The potentials of wood fuel and charcoal are 0.38 and 0.05 EJ, respectively. The study found that despite the available potential and existing policies, not much has been done in the implementation of large-scale bioenergy within the country. However, there has been laboratory and research-scale investigations. The review suggests that more policies and stronger enforcement will aid bioenergy development within the country. From the review, it has been suggested that the agricultural sector needs to be developed to generate more biomass resources. More research, development, and implementation have to be carried out on biomass resources and bioenergy generation processes. The production of non-edible energy crops in marginal lands should also be considered prime to the development of bioenergy within the country.

Biomass Energy Small-Scale Combined Heat and Power Systems

2018 ◽  
pp. 629-651
Author(s):  
Daniel Büchner ◽  
Andreas Ortwein ◽  
Ernst Höftberger ◽  
Volker Lenz
Keyword(s):  
Power Systems ◽  
Combined Heat And Power ◽  
Biomass Energy ◽  
Small Scale

scholarly journals The Development Strategies and Technology Roadmap of Bioenergy for a Typical Region: A Case Study in the Beijing-Tianjin-Hebei Region in China

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 844
Author(s):  
Xin Zhang ◽  
Yun-Ze Li ◽  
Ao-Bing Wang ◽  
Li-Jun Gao ◽  
Hui-Juan Xu ◽  
...  
Keyword(s):  
Energy Use ◽  
Crop Residues ◽  
Estimation Method ◽  
Biomass Energy ◽  
Livestock Manure ◽  
Municipal Solid Wastes ◽  
Technology Roadmap ◽  
Biomass Resources ◽  
Data Estimation

The Beijing-Tianjin-Hebei region has abundant biomass resources, which are difficult to collect and thus are underutilized. However, the potential estimation of biomass energy can result in a comprehensive understanding of bioenergy resources in order to establish a technology roadmap for the region’s bioenergy development. Therefore, it is essential to estimate the potential of Beijing-Tianjin-Hebei biomass resources and bioenergy utilization. In this paper, the amount of main biomass resources for possible energy use and bioenergy utilization are calculated based on a statistical data estimation method for crop residues; human, poultry, and livestock manure; and municipal solid wastes. On the basis of biomass resources and bioenergy utilization potential, the technology roadmap is established. The results show that the amount for available biomass energy use is unevenly distributed in the Beijing-Tianjin-Hebei region, and the largest amount of resources is crop residues (36.52 million tons or 18.26 million tons coal equivalent). The biogas from human, poultry, and livestock manure and densified solids from crop residue technology roadmap is suitable for the Beijing-Tianjin-Hebei region.

scholarly journals The Potential of Renewable Energy in Timor-Leste: An Assessment for Biomass

Energies ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1441 ◽  
Author(s):  
Lelis Gonzaga Fraga ◽  
José Carlos F. Teixeira ◽  
Manuel Eduardo C. Ferreira
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Agricultural Waste ◽  
Biomass Energy ◽  
Animal Waste ◽  
Energy Potential ◽  
Wide Range ◽  
Timor Leste ◽  
Urban Solid Waste

This paper assesses the potential of biomass energy resources in Timor-Leste (TL). Although other renewable energy sources are mentioned in this article, such as wind energy, solar energy, hydropower, bioenergy, including bioethanol and biogas, the main goal is to gather the data on biomass in TL and provide such data as useful information for a wide range of end-users. The current evaluation is based on various sources which include previous assessments on biomass and other renewable sources. The energy potential of biomass in TL apart that resulting from vegetation or flora and animals is also derived from agricultural waste, such as waste from rice, corn, and coffee. The analyses also include the contribution of agricultural waste, animal waste, and that from urban waste. The results from this article show that the potential of usable biomass energy in TL from forestry and agriculture is 1.68 × 106 toe/year, animal waste is 4.81 × 103 toe/year, and urban solid waste amounts to 9.55 × 103 toe/year. In addition, it is concluded that biomass alone can fully replace fossil fuels for electricity generation.

scholarly journals Hybrid solar - biomass plants for power generation; technical and economic assessment

2013 ◽  
Vol 13 (3) ◽  
pp. 266-276
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Economic Benefits ◽  
Biomass Energy ◽  
Biomass Combustion ◽  
Energy Potential ◽  
Novel Technologies ◽  
Mediterranean Countries ◽  
Biomass Power Plants

Environmental, economic and strategic reasons are behind the rapid impulse in the deployment of renewable energy sources that is taking place around the world. In addition to overcoming economic and commercial barriers, meeting the ambitious objectives set by most countries in this field will require the development of novel technologies capable of maximising the energy potential of different renewable sources at an acceptable cost. The use of solar radiation and biomass for power generation is growing rapidly, particularly in areas of the globe where these resources are plentiful, like Mediterranean countries. However, solar energy plants necessarily suffer from the intermittency of day/night cycles and also from reduced irradiation periods (winter, cloudy days, short transients). Biomass power plants have to confront the logistic problems associated with the continuous supply of very large amounts of a relatively scarce and seasonal fuel. Hybrid systems may provide the solution to these limitations, maximising the energy potential of these resources, increasing process efficiency, providing greater security of supply and reducing overall costs. This work provides a practical introduction to the production of electricity from conventional Concentrating Solar Power (CSP) and biomass power plants, which is used as the basis to evaluate the technical and economic benefits associated with hybrid CSP-biomass energy systems. The paper initially analyses alternative configurations for a 10 MWe hybrid CSP- biomass combustion power plant. The Solar Advisor Model (SAM) was used to determine the contribution of the solar field using quasi-steady generation conditions. The contribution of the biomass and gas boiler to the power plant was estimated considering the available radiation throughout the year. An economic assessment of a 10 MWe power plant based on conventional CSP, biomass combustion and hybrid technology is calculated. The results show that investment costs for hybrid CSP- biomass power plants are higher than for conventional CSP and biomass combustion plants alone. However, owing to the shared use of some of the equipment, this value is significantly lower (24% saving) than a simple addition of the investment costs associated with the two standard technologies. In contrast, effective operating hours and, therefore, overall energy generation, are significantly higher than in conventional CSP (2.77 times higher) and avoids the need for highly expensive heat storage system. Owing to the lower biomass requirements, hybrid plants may have larger capacities than standard biomass combustion plants, which implies higher energy efficiencies and a reduced risk associated with biomass supply. Universidad Politécnica de Madrid (UPM) is currently collaborating with a consortium of private companies in the development of a first commercial hybrid CSP-biomass combustion power plant that is expected to start operating in 2012.

Biomass Energy Small-Scale Combined Heat and Power Systems

2017 ◽  
pp. 1-24
Author(s):  
Daniel Büchner ◽  
Andreas Ortwein ◽  
Ernst Höftberger ◽  
Volker Lenz
Keyword(s):  
Power Systems ◽  
Combined Heat And Power ◽  
Biomass Energy ◽  
Small Scale

scholarly journals Hydrothermal Carbonization of Olive Tree Pruning as a Sustainable Way for Improving Biomass Energy Potential: Effect of Reaction Parameters on Fuel Properties

Processes ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1201 ◽  
Author(s):  
Judith González-Arias ◽  
Marta Elena Sánchez ◽  
Elia Judith Martínez ◽  
Camila Covalski ◽  
Ana Alonso-Simón ◽  
...  
Keyword(s):  
Activation Energy ◽  
Reaction Times ◽  
Olive Tree ◽  
Hydrothermal Carbonization ◽  
Biomass Energy ◽  
Fuel Properties ◽  
Energy Potential ◽  
Mediterranean Countries ◽  
Solid Biofuel ◽  
Tree Pruning

Hydrothermal carbonization (HTC) allows the conversion of organic waste into a solid product called hydrochar with improved fuel properties. Olive tree pruning biomass (OTP), a very abundant residue in Mediterranean countries, was treated by HTC to obtain a solid fuel similar to coal that could be used in co-combustion processes. Three different reaction temperatures (220, 250, and 280 °C) and reaction times (3, 6, and 9 h) were selected. The hydrochars obtained were extensively analyzed to study their behavior as fuel (i.e., ultimate, proximate, fiber and thermogravimetric analysis, Fourier-transform infrared spectroscopy (FTIR), activation energy, and combustion performance). The concentrations of cellulose, hemicellulose, and lignin in the samples depict a clear and consistent trend with the chemical reactions carried out in this treatment. Regarding O/C and H/C ratios and HHV, the hydrochars generated at more severe conditions are similar to lignite coal, reaching values of HHV up to 29.6 MJ kg−1. The higher stability of the solid is reflected by the increase of the activation energy (≈60 kJ mol−1), and ignition temperatures close to 400 °C. With this, HTC is a proper thermal treatment for the management of raw OTP biomass and its further conversion into a solid biofuel.

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