Salix viminalis vs. Fagus sylvatica - FIGHT FOR RENEWABLE ENERGY FROM WOODY BIOMASS IN ROMANIA

2016 ◽  
Vol 15 (2) ◽  
pp. 413-420
Author(s):  
Aurel Lunguleasa ◽  
Tatiana Griu
Keyword(s):  
Renewable Energy ◽  
Fagus Sylvatica ◽  
Woody Biomass ◽  
Salix Viminalis

scholarly journals Influence of Policy, Air Quality, and Local Attitudes toward Renewable Energy on the Adoption of Woody Biomass Heating Systems

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2873 ◽  
Author(s):  
Jesse D. Young ◽  
Nathaniel M. Anderson ◽  
Helen T. Naughton
Keyword(s):  
Renewable Energy ◽  
Air Quality ◽  
Large Scale ◽  
Negative Binomial ◽  
Woody Biomass ◽  
The United States ◽  
State Policies ◽  
Biomass Energy ◽  
Biomass Combustion ◽  
Heating Systems

Heat produced from woody biomass accounts for a significant portion of renewable energy in the United States. Economic and federal policy factors driving institutional adoption of woody biomass heating systems have been identified and examined in previous studies, as have the effects of state policies in support of biomass heating. However, plans for a number of mid- to large-scale biomass facilities have been abandoned after being proposed in communities with many of the factors and policies considered favorable to the adoption of such systems. In many of these cases, opponents cited potential negative impacts on local air quality, despite being generally in favor of renewable energy. This study employed a zero inflated negative binomial (ZINB) statistical model to determine if state policies, air quality, and local attitudes toward renewable energy have a significant effect on the adoption and retention of distributed-scale biomass combustion systems used for institutional heating. State policy appears to have a negligible effect, while the influences of historic and current air pollution and local emissions appear insignificant. However, local attitudes in favor of renewable energy are associated with the adoption and retention of distributed-scale woody biomass heating systems. This is an indication of the importance of local support in determining the fate of future biomass energy projects.

scholarly journals Co-gasification of Cassava Rhizome and Woody Biomass in the 1 MWel Prototype Dual Fluidised Bed Gasifier by Gussing Renewable Energy

2020 ◽  
Vol 495 ◽  
pp. 012019
Author(s):  
J Hongrapipat ◽  
V Siriwongrungson ◽  
M Messner ◽  
C. Henrich ◽  
S. Gunnarsson ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Woody Biomass ◽  
Fluidised Bed

Diverse interpretations enabling the continuity of community renewable energy projects: A case study of a woody biomass project in rural area of Japan

2018 ◽  
Vol 33 (8) ◽  
pp. 822-841 ◽  
Author(s):  
Kazuki Horiuchi
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Social Interactions ◽  
Woody Biomass ◽  
Collective Decision Making ◽  
Energy Projects ◽  
Tackle Climate Change ◽  
Project Objectives ◽  
Significant Attention

Community renewable energy projects have captured significant attention due to their potential to tackle climate change by socially and economically empowering local societies. Recently, however, various difficulties in the continuity of such projects over extended periods of time have been reported. As a case study, this article explores a woody biomass project, planned and put into practice by local people, which has lasted for over 10 years. The article first examines the process of collective decision-making among members who have diverse motivations. It then focuses on how the project objectives have been interpreted by individual members, paying particular attention to each member’s practice. The article shows that decisions related to the project were based on the diverse and constant social interactions between members, which focused on their collaboration rather than overall quantitative goals. I argue, both theoretically and empirically, that this vagueness of the overall goals has enabled the project’s continuity. Based on their own practices, it has allowed each project member to interpret the project and to gain a sense of its success. Diversity of practices within a project leads to plural sets of values, which bring sustainability to a project running in an uncertain context.

scholarly journals The investigation of morphological characteristics of willow species in different environmental conditions

2016 ◽  
pp. 63-72
Author(s):  
Aleh Rodzkin ◽  
Sasa Orlovic ◽  
Borivoj Krstic ◽  
Andrej Pilipovic ◽  
Olga Shkutnik
Keyword(s):  
Renewable Energy ◽  
Field Experiments ◽  
Morphological Characteristics ◽  
Good Alternative ◽  
Salix Viminalis ◽  
Salix Alba ◽  
Short Rotation ◽  
Willow Species ◽  
Salix Dasyclados ◽  
Rates Of Growth

Alternative or renewable energy is a modern strategy with a good per?spective in the nearest future. There are several directions of renewable energy development that depend on climatic, economic and technological opportunities of a region. The perspective choice for areas with moderate climate is bioenergy. One of the bioenergy directions is agro forestry based on short rotation coppice plantations (SRC) of trees, like willow, poplar and others. The goal of experiments was the assessment of the potential of different willow species for the obtaining of energy in two climatic zones and on two types of soils of Belarus. For this purpose several morphological characteristics were metered: height of plants, biomass, diameter and number of sprouts. The field experiments were conducted on two types of soils: post-mining peaty soils in Grodno region and on degraded peaty soils in Brest region of Belarus. The same soils are very problematic for growing of traditional agricultural crops, thus willow production is a good alternative for biomass production of energy as well as for the reclamation of these soils. In our experiments the following species of willow were tested (Salix alba, Salix viminalis, Salix dasyclados, Salix aurita) that may grow on peaty soils at the natural conditions. The most popular species for modern selection of SRC of willow is Salix viminalis. Nevertheless, the most suitable morphological characteristics on post-mining peaty soils were established for plants of Salix dasyclados and on degraded peaty soils for the plants of Salix alba. The unfavorable parameters at the both type of soils were identified for the plants of Salix aurita. However, it is necessary to take into account that the used species are more popular for natural wetlands and in our experiments plants have best results of survival of cutting and rates of growth at the beginning of vegetation. In accordance with these facts Salix aurita may not be used for energy plantation directly, but it is interesting for hybridization with other species. Our results have shown that perspective hybrids for peaty soils may be for instance Salix aurita x Salix dasyclados and Salix aurita x Salix alba.

scholarly journals Energy content in woody biomass of Zhytomyr Polissia’s forests

2021 ◽  
Vol 12 (1) ◽  
pp. 25-33
Author(s):  
R. D. Vasylyshyn ◽  
Yu. M. Yurchuk ◽  
I. P. Lakyda ◽  
R. P. Bondarchuk
Keyword(s):  
Organic Matter ◽  
Renewable Energy ◽  
Total Energy ◽  
Energy Content ◽  
Woody Biomass ◽  
Forest Growth ◽  
Utilization Efficiency ◽  
Dead Organic Matter ◽  
Total Energy Content ◽  
Live Biomass

Development of renewable energy production is one of the main directions of decarbonizing the Ukraine’s energy sector as well as the forestry sector. Increase in woody biomass utilization efficiency at producing energy, alongside with securing the proper level of technological processes and technical equipment, also requires a reliable information support toolbox that would facilitate managerial decisions. An important constituent of this toolbox is represented by the regional assessments of energy function of forest plant communities. The information basis of the research is formed by the information from the industrial database of IA “Ukrderzhlisproekt”, which contains the detailed biometric characteristics of the stands in the studied region, as well as by a system of mathematical models for quantitative assessment of foersts’ live biomass and dead organic matter. As a result, the quantitative values of the total energy content in live biomass and daed organic matter of Zhytomyr Polissia’s forests were determined. The total amount of energy accumulated in vegetal biomass of the region's forests is 3035.7 PJ, which corresponds to 100.2 million tons of conventional fuel. At the same time, the share of the total energy content in dead organic matter is 11.1 %. The structure of energy content in vegetal biomass in the region is dominated by pine stands, which accumulate more than 60 % of the energy of forests of Zhytomyr region, including 70.8 % - in live biomass of tree trunks. More than 40 % of energy is accumulated in vegetal biomass of stands of I site index class, which mainly grow in fairly infertile forest growth conditions. In the general structure of energy content in dead organic matter (336.2 PJ) more than 60 % belongs to forest litter (212.8 PJ which is not considered a source of renewable energy), standing dead trees 12.3 % (41.3 PJ), dry branches – 17.8 % (close to 60 PJ). The results obtained in the course of the research will serve as an information background for the formation of a strategy for development of forest bioenergy in Zhytomyr region.

Modeling Size Reduction and Fractionation for Cellulosic Feedstock

2015 ◽  
pp. 1-26
Author(s):  
Ladan J. Naimi ◽  
Shahab Sokhansanj ◽  
Xiaotao T. Bi ◽  
C. Jim Lim ◽  
Anthony Ka-pong Lau ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Surface Area ◽  
Material Properties ◽  
Woody Biomass ◽  
Size Reduction ◽  
Biofuel Production ◽  
Unit Operations ◽  
Feedstock Preparation ◽  
Cellulosic Feedstock

Biomass has attracted attention as a source of renewable energy. It is available in different forms such as lignocellulosic stalks of herbaceous and woody biomass. These forms of biomass should be prepared to go through bioconversion process or biofuel production. One of the major unit operations for preparation is size reduction, which increases the surface area available and breaks the structure of biomass. Size reduction is energy intensive and an expensive step of feedstock preparation. The characteristics of ground particles are the result of interactions between material properties and the modes of size reduction like shear, impact, and attrition. The fundamentals of size reduction of fibrous biomass are not well understood. This chapter summarizes the latest studies on modeling of size reduction of lignocellulosic and woody biomass.

scholarly journals LIFE CYCLE ASSESSMENT OF HEAT PRODUCTION FROM WILLOW CHIPS OF SALIX VIMINALIS L. IN UKRAINE

2018 ◽  
Vol 40 (2) ◽  
pp. 56-64
Author(s):  
O.V. Tryboi
Keyword(s):  
Energy Efficiency ◽  
Life Cycle Assessment ◽  
Renewable Energy ◽  
Life Cycle ◽  
Heat Production ◽  
Environmental Sustainability ◽  
Energy Output ◽  
Salix Viminalis ◽  
Energy Yield ◽  
Transportation Distance

The results of the life cycle assessment of heat production from willow chips of Salix Viminalis L. are presented. Energy efficiency and greenhouse gas emissions reduction are estimated. The influence of the most significant parameters is analyzed and optimal relationships are determined to ensure maximum energy efficiency and environmental sustainability. The purpose of the paper is to define the energy efficiency and environmental sustainability of bioenergy value chain for heat production from willow chips of Salix Viminalis in Ukraine. The methodology of Life Cycle Assessment (LCA) was used, according to which, the scope of the product system includes the feedstock cycle of willow Salix Viminalis L. cultivation and harvest, and the subsystem of willow chips conversion to heat in a 500 kW biomass boiler. Cumulative energy demand and energy yield coefficient were chosen as energy efficiency indicators. The product system was compared with the similar one using natural gas. Non- renewable energy yield coefficient was used to define how many times the energy output was bigger than input of non- renewable energy. An acceptable value for renewable energy installations and systems is to receive twice as much energy output as was spent of non-renewable energy, however the recommended value assumed in the work is to receive a 5 times more energy output compared to non-renewable energy input. As an environmental sustainability indicator, a reduction of GHG emissions was used. The acceptable level of GHG emissions reduction was chosen at a level of 60% for the whole life cycle from cultivation-to-heat, compared to traditional heat production in gas boilers. Results of the assessment identified that the most significant parameter affecting energy efficiency and environmental sustainability is transportation distance. The growing of willow Salix Viminalis L. in Ukraine for the subsequent production of biofuel in the form of chips and its combustion in biofuel boilers is environmentally sustainable with a maximum transportation distance of 390 km and energy efficient with a maximum transportation distance of 180 km.

Sign in / Sign up

Export Citation Format

Share Document