scholarly journals Are Peat and Sawdust Truly Improve Quality of Briquettes as Fuel Alternative?

2017 ◽  
Vol 10 (5) ◽  
pp. 61 ◽  
Author(s):  
Andi Bustan ◽  
Muhammad Arsyad

The availability of energy and fuel is always a critical issue, and currently the increasing scarcity and price of kerosene is causing problems for both households and businesses. For example, chicken farmers in Central Kalimantan need to maintain the room temperature when nursing chicks up to 12 days old, and currently have few alternatives to kerosene stoves. Non-carbonized briquettes made from a mix of peat and sawdust can provide an alternative fuel source. The sawdust is available from local sawmills, which is otherwise an unutilized waste product that is burnt off, so adding to local smoke pollution. This study was conducted to determine the optimal composition and manufacturing process to produce bricks that have a maximal calorific content whilst maintaining a long burning time and a reduced tendency to break. Analyses in the laboratory showed that the highest calorific content obtainable was 19 020.63 kJ/kg with a peat/sawdust ratio of 2:1 (20 kg of peat and 10 kg of sawdust). These briquettes had a production efficiency of 83.26%, and calculations showed the overall production cost of the finished product to be around 40% lower than that of kerosene. The results indicate that a peat soil and sawdust mix produce a briquette that is viable as a fuel alternative, and based on this the researcher recommends that it be further developed commercially to meet the additional energy demands at lower cost of people in rural areas and industrial sectors. 

Fermentation ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 81
Author(s):  
Hironaga Akita ◽  
Mohd Zulkhairi Mohd Yusoff ◽  
Shinji Fujimoto

Malaysia is the second largest palm oil producer and exporter globally. When crude palm oil is produced in both plantations and oil processing mills, a large amount of oil palm empty fruit bunch (OPEFB) is simultaneously produced as a waste product. Here, we describe the preparation of hydrolysate from OPEFB. After OPEFB was hydrothermally treated at 180–200 °C, the resultant liquid phase was subjected to high-performance liquid chromatography analysis, while the solid phase was used for acidic and enzymatic hydrolysis. Hemicellulose yield from the acid-treated solid phase decreased from 153 mg/g-OPEFB to 27.5 mg/g-OPEFB by increasing the hydrothermal treatment temperature from 180 to 200 °C. Glucose yield from the enzyme-treated solid phase obtained after hydrothermal treatment at 200 °C was the highest (234 ± 1.90 mg/g-OPEFB, 61.7% production efficiency). In contrast, xylose, mannose, galactose, and arabinose yields in the hydrolysate prepared from the solid phase hydrothermally treated at 200 °C were the lowest. Thus, we concluded that the optimum temperature for hydrothermal pretreatment was 200 °C, which was caused by the low hemicellulose yield. Based on these results, we have established an effective method for preparing OPEFB hydrolysates with high glucose content.


2021 ◽  
pp. 59-61
Author(s):  
Caroline Couret ◽  
Cláudia Pato de Carvalho

Abstract Introduces what Creative Tourism Network is, the paper also presents how creative tourism is important. Creative tourism is important in two main ways: it meets a growing and irreversible demand that reflects social changes more than a marketing gimmick, and it is, above all, perceived by the territories as a lever for sustainable development. Indeed, far from being considered as a danger for local communities as mainstream tourism used to be; creative tourism is valued for its capacity to create a value chain at the local and regional scale, by turning weaknesses and negative externalities into a virtuous ecosystem. In addition to this, assets such as communities' empowerment, inclusiveness, seasonality, resilience, intangible heritage recovery, social cohesion, and governance (just to mention a few) are applicable to any kind of destination and are particularly beneficial for the rural areas that cannot rely on other industrial sectors. The destinations that are part of the Creative Tourism Network ® are labelled 'CreativeFriendly' for guaranteeing both the quality and authenticity of the creative experiences they are promoting, as well as for the value chain generated through the project design.


2020 ◽  
Vol 11 (5) ◽  
pp. 1251
Author(s):  
Kaparov Nurtaza MARATOVICH ◽  
Zhibek OMARKHANOVA ◽  
Rakhisheva Aida BEKARYSOVNA ◽  
Saulebaevna Saule SAPARBAYEVA ◽  
Zakirova Dilnara IKRAMKHANOVNA ◽  
...  

The relevance of the research topic is that energy-saving is the key element of modern energy development in the country. In Kazakhstan, energy-saving, and improving the energy efficiency of agriculture is currently a priority task that will solve energy, environmental and economic problems. Without a solution to these problems, the country's development will inevitably hold back. The head of state in the field of energy conservation has set a goal to reduce the energy intensity of the gross domestic product by at least 25% by 2020, and annual energy-savings of 3.5% after 2020. Industry in rural areas consumes more than 70 % of all electricity. As part of the comprehensive plan, their energy audit was conducted 50/50 (50 % of the financing is the enterprises' funds, the remaining 50 % is the state budget). As a result of the energy audit, systematic measures were developed to reduce the energy intensity of the industry, including the electric power industry. Large unproductive losses of energy resources are in the private sector, in this connection, since 2019, the energy audit of JSC "Kazakhstan center for modernization and development of housing and communal services (housing and communal services)" is conducted on budget funds in the private sector. Energy conservation is one of the most important and strategic tasks of the country. Rapidly developing production requires additional energy costs. This is confirmed by the annual increase in energy tariffs. In turn, resources are not unlimited, and their irrational consumption will inevitably lead to not only economic but also to an environmental crisis.


2015 ◽  
Vol 73 (3) ◽  
pp. 927-936 ◽  
Author(s):  
Nicole Hildebrandt ◽  
Franz J. Sartoris ◽  
Kai G. Schulz ◽  
Ulf Riebesell ◽  
Barbara Niehoff

Abstract It is currently under debate whether organisms that regulate their acid–base status under environmental hypercapnia demand additional energy. This could impair animal fitness, but might be compensated for via increased ingestion rates when food is available. No data are yet available for dominant Calanus spp. from boreal and Arctic waters. To fill this gap, we incubated Calanus glacialis at 390, 1120, and 3000 µatm for 16 d with Thalassiosira weissflogii (diatom) as food source on-board RV Polarstern in Fram Strait in 2012. Every 4 d copepods were subsampled from all CO2 treatments and clearance and ingestion rates were determined. During the SOPRAN mesocosm experiment in Bergen, Norway, 2011, we weekly collected Calanus finmarchicus from mesocosms initially adjusted to 390 and 3000 µatm CO2 and measured grazing at low and high pCO2. In addition, copepods were deep frozen for body mass analyses. Elevated pCO2 did not directly affect grazing activities and body mass, suggesting that the copepods did not have additional energy demands for coping with acidification, neither during long-term exposure nor after immediate changes in pCO2. Shifts in seawater pH thus do not seem to challenge these copepod species.


1976 ◽  
Vol 2 (4) ◽  
pp. 429-447
Author(s):  
Carlos A. Benito

Widespread rural poverty and a tendency of food production to stagnate are phenomena common to many Third World countries. The meager results of the development efforts of the last quarter century demand the search for new alternatives'. This essay addresses these problems under the premises of a holistic social philosophy which is found useful for understanding the causes of underdevelopment which are not regarded as a heritage of ‘traditions’ but of the interplay between them and a contemporaneous world process of production, and for finding a path of liberating development. It briefly investigates the nature and dynamic of a socioeconomic process based on unequal development between nations, between agricultural and industrial sectors, and between the peasantry and other agrarian groups. It also investigates the performance of land reforms and modernization projects as a means to overcome the conflicts that this process generates in rural areas. Basing itself on a social philosophy affirming the integral unfolding of each real man as the ultimate objective of social life, it proposes a rural way of development, geared to the construction of a socially and sectorally articulated economy. The key elements in this are intermediate organizations, intermediate technologies, integral consciousness, and, finally, cultural action (modernization with conscientization), because a change at the level of consciousness is necessary to subordinate technical and organizational changes to the needs of humankind.


2021 ◽  
Vol 2 (1) ◽  
pp. 17-23
Author(s):  
Mariia Bahorka ◽  
Iryna Kadyrus

The purpose of the research is to develop an innovative model of developing agrarian enterprises, which will make possible to increase their competitiveness at the expense of implementing modern technologies, types of produce, methods of management, strategy of development. The methodology of forming the innovative model of development at agrarian enterprises considered two types of analyses (internal and external) and included the following stages: analysis of the existing situation; analysis of the external environment; formation and selection of the optimal development strategy; implementation of the selected strategy; monitoring over the process of implementing the strategy. Results were presented in the form of the system for providing ecologically safe agrarian business. Practical results include the formed methods and mechanisms of their implementation towards: provision of the steady development in agribusiness of the region based on the innovative scheme by developing and supporting the organic production; increased employment in rural areas and, as a consequence, partial solution to social problems; provision of population with high-quality local ecologically safe produce. Value/originality. The originality is determined by the implementation of the process of greening the agricultural production in the context of applying alternative management systems, in which agrarian enterprises are considered as the economic ecological system, which is based on rational and ecologically grounded methods of production, by providing the quality of the produce and raw material, production efficiency as well as the minimal impact on the environment and production efficiency.


Author(s):  
Аnatoliy MAZUR

The article considers urgent issues of regulation of the agricultural production development based on the use of provisions of the theory of institutionalism in the administrative process. The author defines on a systematic basis the essence, content and position of the theory of institutionalism in the formation of agrarian relations in the rural area, emphasizes the dominant human role in the formation of extended economic reproduction as a factor of the growth of production and formation of human potential in rural areas. The practical content of institutionalism is based on the development of rules and codes of conduct in a market environment for family commodity producers, which can be conducive to extended economic reproduction. The object of the study is the process of functioning of small agribusiness in rural areas. The subject of the study is a set of managerial, economic and legal aspects that comprise institutional content of the development of small businesses in rural areas. Methodological basis of this publication is the fundamental provisions of modern economic theory, scientific works of foreign and domestic scientists on the specified problems, which reveal the essence of the above-defined economic theory and its influence on the nature of modern economic relations in the rural areas. The objectives set in the article have been solved from the standpoint of a systematic approach and the use of the following methods: monograph – to study and summarize the scientific and methodological foundations of the theory of institutionalism; abstract-logical – develop and specify the categorical apparatus of research and formulation of conclusions; graphic – to establish the structural elements of the category “institutes” and “institutions”; peer review – to determine the motivation for choosing a form of business. Scientific works on the specified problems by well-known foreign scientists W. Hamilton, T. Veblen, R. Cruz, D. Nart, M. Olsen and domestic scientists V. Heets, H. Kaletnik , M. Malin, A. Mazur, O. Shpykuliak, etc. who study this problem are used in this research. On the basis of scientific research, the author has formed a scientific paradigm as a synthesis of hypotheses and theories that investigates structural changes in unstable economic systems. He refers the environment to the main elements of institutional theory, e.g. norms and rules of living in the rural area; property rights; economic entities of business activity; contractual terms and market transformations in the land system; production efficiency; quality of management: the degree of trust in society; transaction costs, etc. The study emphasizes that the essence of institutional theory is based on the content of the conceptual apparatus, which makes it possible to reveal the mechanisms of functioning and interaction of institutions in the agrarian economy. The author argues that “institutions” are rules of the game in society, or thought-out restrictions that direct human activity in a particular direction. They influence the socio-economic processes as traditions, social individual norms of the organizational structure of the enterprise, etc. In other words, they structure human and organizational interaction coordinating exchanges within the achievement of agricultural production efficiency. Practical activity on the formation of institutional environment in the rural area is based on maximizing the possibility of developing a family type of business. In particular, the main priorities of the state agricultural policy should be creation of conditions for realization and protection of rural people’s rights to land and formation of market relations in the rural area. In our opinion, a priority direction of the institutional support of business entities in rural areas is the development and implementation of state and regional programs of integrated development of rural areas, improvement of state support of the enterprise development. The study of the foundations of institutionalism as an economic theory and practice of economic activity lets us conclude that it is advisable to introduce this concept as a form of economic relations in the system of small-scale agricultural production.


2014 ◽  
Vol 644-650 ◽  
pp. 1391-1395
Author(s):  
Bo Meng ◽  
Ting Liu ◽  
Na Lu

Recently, the variety of emergent events frequently occurring, such as: great environmental pollution, fire and explosion, toxic gas leakage, disserves human’s living environment, and huge economic and property losses, especially in the rural areas of mountain, where always surrounding by gas fields, chemical plants and other potentially dangerous source, the terrain of mountainous is complex, in the event of crises, the safe evacuation of the population will become a very critical issue. In this paper, through the analysis of the existing evacuation model based on the proposed application 3D surface cellular automata method simulation the evacuation processin complex mountainous terrain. The digital elevation model data, road network and characteristics of the pedestrian are integrated initiatively in the 3D surface CA model. The framework for data extraction, procession and application is designed. A Visualization Software System for three-dimensional simulation of pedestrian evacuation is developed. Moreover, through a case study of some gas well, which belongs to the Puguang gas field in the northeastern Sichuan, it is proved that the model presented in this paper can realize 3D simulation of pedestrian evacuation and predict evacuation time. At last the future work of the model is discussed.


Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 679 ◽  
Author(s):  
Miguel Crespo Chacón ◽  
Juan Antonio Rodríguez-Díaz ◽  
Jorge García Morillo ◽  
John Gallagher ◽  
Paul Coughlan ◽  
...  

The agricultural sector is one of the most significant users of water resources worldwide. Irrigation infrastructure has been modernized in recent years in many regions dedicated to agriculture, transitioning from traditional open channels to more efficient on-demand pressurized irrigation networks. Despite improvements in water efficiency, the modernization of these networks has led to increased energy demands of the irrigation sector. Several negative consequences have been linked to additional energy requirements of pressurized networks, such as the rising cost of irrigation water. Other consequence linked has been the excess pressure in certain locations that could be used to recover energy from these networks. This paper studies the excess pressure in pressurized irrigation networks and the conversion of this excess to usable energy by means of small-scale hydropower turbines. Twelve irrigation networks located in the South of Spain have been modelled, quantifying the excess pressure available for power generation. Over 1 GWh per annum has been estimated that could be recovered.


2018 ◽  
Vol 10 (11) ◽  
pp. 4038 ◽  
Author(s):  
Eduardo Viciana ◽  
Alfredo Alcayde ◽  
Francisco Montoya ◽  
Raul Baños ◽  
Francisco Arrabal-Campos ◽  
...  

Power quality and energy consumption measurements support providers and energy users with solutions for acquiring and reporting information about the energy supply for residential, commercial, and industrial sectors. In particular, since the average number of electronic devices in homes increases year by year and their sensitivity is very high, it is not only important to monitor the total energy consumption, but also the quality of the power supplied. However, in practice, end-users do not have information about the energy consumption in real-time nor about the quality of the power they receive, because electric energy meters are too expensive and complex to be handled. In order to overcome these inconveniences, an innovative, open source, low-cost, precise, and reliable power and electric energy meter is presented that can be easily installed and managed by any inexperienced user at their own home in urban or rural areas. The system was validated in a real house over a period of two weeks, showing interesting results and findings which validate our proposal.


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