An Assessment of Livelihood Security Based on Biogas Plants in Punjab

2020 ◽  
pp. 120-127
Keyword(s):  
Greenhouse Gas Emission ◽  
Farmyard Manure ◽  
Biogas Plant ◽  
Cattle Dung ◽  
Cost Of Living ◽  
Fuel Wood ◽  
Livelihood Security ◽  
Type Size ◽  
Biogas Plants ◽  
Biogas Plant Slurry

A survey was conducted in selected villages of district Patiala for assessment of livelihood security of rural households based on biogas plants. A questionnaire was developed in order to collect information related to farmland holding, biogas plant installed or not, its type, size etc., number of cattle heads, types of fuel used in a kitchen, usage of biogas for kitchen and other purposes. The socio-economic considerations like fuel savings, household income from different sources, cost of living, and use of biogas plant slurry as manure and impacts of biogas plant usage at domestic level in terms of greenhouse gas emission reduction were also noted. Forty five farming households were surveyed in 15 villages of different blocks of the district. It was found that average members in the family were 5 and the average cultivable land was 9.77 acre. The income of the surveyed households was found to vary from `250000 to 2750000. The average annual cost of living of households with and without biogas plants were `167911 and `183520. In addition, there were a total annual savings of `11095 of households having biogas plants, in terms of fuel wood (1380 kg) and LPG cylinders (9) savings. However, no comparative savings were found in using biogas plant slurry as manure compared to dung usage as farmyard manure in fields of surveyed farms, whereas, the farmers prevented the emission of methane (1074 kg) and ammonia (751 kg) from open disposal of cattle dung on average per year in comparison to households without biogas plants.

scholarly journals Production of biogas from cattle waste at low temperature

2019 ◽  
pp. 639-644
Author(s):  
T. Y. Yeole ◽  
N.S. Deshmukh ◽  
K.L. Lapsiya ◽  
D.R. Ranade
Keyword(s):  
Rumen Fluid ◽  
Low Cost ◽  
Rural Families ◽  
Cell Mass ◽  
Winter Season ◽  
Biogas Plant ◽  
Effect Of Temperature ◽  
Cattle Dung ◽  
Biogas Yield ◽  
Biogas Plants

Production of Bio gas from cattle waste and other biomass is now considered as one of the majorroutes to obtain gaseous fuel for sustainable development. In tropical countries like Indiathousands of rural families in villages are using 3 to 5 M3 biogas plants to suffice their dailycooking fuel need. All these plants are run on cattle waste. Since these plants are operated atambient temperatures, effect of temperature variation affects daily gas yield. The effect becomesvery prominent during winter season. In general about 50-60% reduction in daily biogas yield isobserved when ambient temperature is around l 5°C as compared to that produced at around 30-350C. A low cost and simple to operate technique to enhance biogas yield from the biogas plantduring winter season shall help to get optimum biogas yield from these plants during the winterseason. We thought of a simple technique of filtering the digested effluent slurry of biogas plantthrough a triple layer muslin cloth to obtain a filtrate, hence-forth called as clarified digestedslurry (CDS), rich in cell mass and then adding it back to the biogas plant along with the influentslurry. Experiments were carried out on 25 L capacity cattle dung biogas plant operated at 15°Cto see effect of recirculation of CDS. Addition of 25 and 40% v/v CDS in daily influent resultedin 15% and 37% increase in daily biogas yield. Recirculation of 40% v/v CDS supplementedwith Diammonium phosphate(DAP) increased the biogas yield by 75% v/v. In anotherexperiment use of clarified rumen fluid (CRF) to prepare influent slurry and added exclusivelyfor one day enhanced the daily biogas yield by 70% v/v for a period of two months. Popular dailywears in India called cotton dhoti or cotton sari can be used for the filtration of the slurry.

scholarly journals Empirical Validation of a Biogas Plant Simulation Model and Analysis of Biogas Upgrading Potentials

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2424
Author(s):  
Jan Martin Zepter ◽  
Jan Engelhardt ◽  
Tatiana Gabderakhmanova ◽  
Mattia Marinelli
Keyword(s):  
Simulation Model ◽  
Biogas Production ◽  
Biogas Plant ◽  
Raw Material ◽  
Biogas Upgrading ◽  
Integrated Energy Systems ◽  
First Order Kinetics ◽  
Biogas Plants ◽  
Plant Simulation ◽  
Kinetics Of

Biogas plants may support the transformation towards renewable-based and integrated energy systems by providing dispatchable co-generation as well as opportunities for biogas upgrading or power-to-X conversion. In this paper, a simulation model that comprises the main dynamics of the internal processes of a biogas plant is developed. Based on first-order kinetics of the anaerobic digestion process, the biogas production of an input feeding schedule of raw material can be estimated. The output of the plant in terms of electrical and thermal energy is validated against empirical data from a 3-MW biogas plant on the Danish island of Bornholm. The results show that the model provides an accurate representation of the processes within a biogas plant. The paper further provides insights on the functioning of the biogas plant on Bornholm as well as discusses upgrading potentials of biogas to biomethane at the plant from an energy perspective.

An Economic Alternative to Replacing Centralized Gas Supply with Autonomous Biogas Facilities in Russian Cities

2021 ◽  
Vol 20 (3) ◽  
pp. 582-612
Author(s):  
G. S. Chebotareva ◽  
◽  
A. A. Dvinayninov ◽  
Keyword(s):  
Economic Efficiency ◽  
Clean Energy ◽  
State Regulation ◽  
Biogas Plant ◽  
Main Trend ◽  
Effective Response ◽  
Biogas Plants ◽  
Gas Consumption ◽  
Gas Supply ◽  
Climatic Features

The main trend in energy development is to increase energy efficiency by reducing the use of limited natural resources, the spread of renewable energy, and reducing the negative impact on the environment. An effective response to these challenges is the use of biogas plants that produce clean energy and solve the environmental problems of waste disposal and recycling. The purpose of the article is to assess the economic efficiency of replacing district gas supply with autonomous biogas plants in public utilities. A hypothesis has been put forward that the feasibility of using such technologies depends on climatic features and the specific provisions of state regulation of prices and gas consumption rates. A cost approach was applied that assesses the overall structure of equipment costs, as well as a comparative assessment method according to the principle “with / without a biogas plant”, and a scenario analysis, the criterion of which is the size of the family owning the plant. An auxiliary method for forecasting retail and economically justified prices for natural gas for the population was used. The object of calculations is the “HomeBiogas” installation intended for home use. Three Russian cities were chosen as territorial subjects: Yekaterinburg, Irkutsk and Krasnodar. The cities which differ significantly in their natural characteristics and approaches to the formation of retail gas prices. It has been proved that although the average monthly temperatures differ significantly in the cities considered, none of them has a constant temperature exceeding the required standard value of 17°C. In each case, the initial capital investment is driven up by the cost of installing additional insulation and heating systems. This equalizes the costs of warmer and colder areas. Therefore, the climatic features of cities are not significant and do not affect the economic efficiency of using a biogas plant. In turn, state regulation of prices and norms of gas consumption by the population is of decisive importance. The findings are of theoretical and practical importance. The methodology can be applied to assess the efficiency of using biogas plants in industry and gasification projects in the remote areas of Russia.

Operational results of an agricultural biogas plant equipped with modern instrumentation and automation

2008 ◽  
Vol 57 (6) ◽  
pp. 803-808 ◽  
Author(s):  
J. Wiese ◽  
O. Kujawski
Keyword(s):  
Energy Crops ◽  
Full Scale ◽  
Biogas Plant ◽  
Biogas Plants ◽  
Technical Details ◽  
Modern Instrumentation

Agricultural biogas plants based on energy crops gain more and more importance because of numerous energetic, environmental and agricultural benefits. In contrast to older biogas plants, the newest generation of biogas plants is equipped with modern ICA equipment and reliable machines/engines. In this paper, the authors present technical details and operational results of a modern full-scale agricultural biogas plant using energy crops.

scholarly journals Evaluation of Eco-Efficiency of Two Alternative Agricultural Biogas Plants

2018 ◽  
Vol 8 (11) ◽  
pp. 2083 ◽  
Author(s):  
Magdalena Muradin ◽  
Katarzyna Joachimiak-Lechman ◽  
Zenon Foltynowicz
Keyword(s):  
Waste Heat ◽  
Negative Impact ◽  
Biogas Production ◽  
Biogas Plant ◽  
Waste To Energy ◽  
Cost Calculation ◽  
Processing Plant ◽  
The European Union ◽  
Levelized Cost Of Electricity ◽  
Biogas Plants

Implementation of the circular economy is one of the priorities of the European Union, and energy efficiency is one of its pillars. This article discusses an effective use of agri-food industry waste for the purposes of waste-to-energy in biogas plants. Its basic objective is the comparative assessment of the eco-efficiency of biogas production depending on the type of feedstock used, its transport and possibility to use generated heat. The environmental impact of the analysed installations was assessed with the application of the Life Cycle Assessment (LCA) methodology. Cost calculation was performed using the Levelized Cost of Electricity (LCOE) method. The LCA analysis indicated that a biogas plant with a lower level of waste heat use where substrates were delivered by wheeled transport has a negative impact on the environment. The structure of distributed energy production cost indicates a substantial share of feedstock supply costs in the total value of the LCOE ratio. Thus, the factor affecting the achievement of high eco-efficiency is the location of a biogas plant in the vicinity of an agri-food processing plant, from which the basic feedstock for biogas production is supplied with the transmission pipeline, whereas heat is transferred for the needs of production processes in a processing plant or farm.

scholarly journals Energy consumption pattern and renewable energy alternatives in Madi Kalyanpur, Chitwan, Nepal

2016 ◽  
Vol 4 ◽  
pp. 47-52
Author(s):  
Sumitra Poudel ◽  
Narayan Prassad Chaulagain ◽  
Manoj Aryal
Keyword(s):  
Energy Consumption ◽  
Greenhouse Gases ◽  
Alternative Energy ◽  
Greenhouse Gas Emission ◽  
Economic Benefits ◽  
Consumption Pattern ◽  
Liquefied Petroleum Gas ◽  
Fuel Wood ◽  
Co2 Equivalent ◽  
Energy Consumption Pattern

Energy consumption pattern and greenhouse gases emission are interrelated. The unsustainable use of biomass and widespread use of commercial energy are of the major sources of greenhouse gas emission. The alternative to kerosene for lighting is solar home system (SHS), which is one of the potential renewable technologies for rural electrification. The present study has analyzed household energy consumption pattern and greenhouse gases emission from energy consumption practices as well as environmental and economic benefits of SHS in Madi Kalyanpur Village Development Committee of Chitwan district. For the purpose, the primary data were collected through household questionnaire survey, key informant interview (KII) and focus group discussion (FGD). The analysis has shown that 22% of household use all types of energy, i.e. fuel-wood, LPG (liquefied petroleum gas), biogas and SHS as the sources of energy. Thirty-five percent households use fuel-wood, LPG and SHS, 24% use fuel-wood, biogas and SHS, 1% used LPG and SHS, 5% use biogas and SHS, 4% use LPG, biogas and SHS and 9% use fuel-wood and SHS as a source of energy. Almost all people have been using SHS for the lighting purpose. The average annual greenhouse gases emission per household from fuel-wood and liquefied petroleum gas consumption was 7.89 ton and 0.17 ton of CO2 equivalent respectively. Typically, a 40 Wp SHS reduced the consumption of kerosene by 42 liter annually for lighting that displaced 0.11 ton of CO2 equivalent per household per year. The simple payback period for typically 40 Wp SHS was found to be nine years with no subsidy, seven years with subsidy from Alternative Energy Promotion Centre and two years with Indian Government Grant. Similarly, the benefit-cost ratios were found to be 3.1, 3.5 and 4.6 for the systems with no subsidy, with AEPC subsidy and with Indian Grant, respectively.

scholarly journals Applying Regression Discontinuity Design to Social Policy: An Evaluation of the Welfare-to-Work Program in South Korea

2016 ◽  
Vol 31 (1) ◽  
pp. 1-29
Author(s):  
Lee Seog-min ◽  
Kwon Huck-ju
Keyword(s):  
Social Policy ◽  
Regression Discontinuity ◽  
Minimum Cost ◽  
Security System ◽  
Welfare Recipients ◽  
Regression Discontinuity Design ◽  
Welfare To Work ◽  
Cost Of Living ◽  
Livelihood Security ◽  
Work Program

Social policy studies focusing on poverty reduction attempt to measure poverty reductions rates and poverty gaps, but they do not provide criteria to determine whether a given social policy is a success or failure. In this study, we suggest using regression discontinuity design to establish evaluation criteria and validate estimation results in social programs. Using the dataset from the Korean Welfare Panel, first we conduct, first, a difference-in-differences comparison between welfare recipients under the National Basic Livelihood Security system and nonrecipients whose income falls under the minimum cost of living. Secondly, we establish the counterfactual effects of the program among nonrecipients whose income is below the minimum cost of living and among nonrecipients whose income is above the minimum cost of living. Last, we analyze treatment effects by comparing welfare recipients with income below the minimum cost of living and nonrecipients with income above the minimum cost of living using the regression distribution design method. We argue that the National Basic Livelihood Security system as a welfare-to-work program has positive effects on labor market participation, which has not been established by previous studies.

Performance evaluation of a biogas stove for cooking in Nigeria

2007 ◽  
Vol 18 (4) ◽  
pp. 14-18 ◽  
Author(s):  
I.N. Itodo ◽  
G.E. Agyo ◽  
P. Yusuf
Keyword(s):  
Performance Evaluation ◽  
Retention Time ◽  
Continuous Flow ◽  
Loading Rate ◽  
Biogas Plant ◽  
Boiling Water ◽  
Cattle Dung ◽  
Operating Pressure ◽  
Teaching And Research ◽  
Stop Watch

A biogas stove was designed, constructed and its performance evaluated using a 3 m3 continuous-flow Indian type biogas plant at the Teaching and Research Farm, University of Agriculture, Makurdi, Nigeria. The biogas plant was operated with cattle dung as feedstock in the ratio of 1 part of dung to 2 parts of water at a retention time of 30 days and daily loading rate of 100 kg of slurry. The perform-ance of the stove was evaluated by boiling water, cooking rice and beans and the time taken to per-form specific tasks determined from a stop watch. The amount of biogas used in boiling and cooking was determined from the operating pressure of the plant measured from a manometer that was placed between the stove and the plant. The results obtained showed that 0.14 l of water was boiled in 1 minute while 5.13 g of rice and 2.55 g of beans cooked in a minute. The biogas consumption for boiling water, cooking rice and beans was 0.69m3/min, 2.81m3/min and 4.87m3/min respec-tively. The efficiency of the stove in boiling water, cooking rice and beans was 20%, 56% and 53%respectively.

scholarly journals The use of co-digested solid fraction as feedstock for biogas plants

2014 ◽  
Vol 44 (4) ◽  
pp. 153
Author(s):  
Elio Dinuccio ◽  
Fabrizio Gioelli ◽  
Dalibor Cuk ◽  
Luca Rollè ◽  
Paolo Balsari
Keyword(s):  
Solid Fraction ◽  
Farmyard Manure ◽  
Pig Slurry ◽  
Time Period ◽  
Study Results ◽  
Biogas Plants ◽  
Mechanical Separation ◽  
Set Up ◽  
Sorghum Silage

A comparative study was set up in order to assess the technical feasibility of the long-term reuse of the mechanically separated co-digested solid fraction as a feedstock for anaerobic digestion plants (ADP). The biogas yields of two feedstock mixtures (A and B) were assessed in mesophilic conditions (40°C±2°C) using 6 lab-scale continuous stirredtank reactors. Feedstock mixture A (control) consisted of pig slurry (70%), farmyard manure (4%), sorghum silage (12%) and maize silage (14%). Feedstock mixture B was the same as the control plus the solid fraction derived from the mechanical separation of the output raw codigestate collected from the reactors. All reactors were fed simultaneously, three times a week, over a period of nine month. According to the study results, the reuse of the co-digested solid fraction as feedstock for ADP could increase the methane yield by approximately 4%. However, ADP efficiency evaluation (<em>e.g.</em>, daily yield of methane per m<sup>3</sup> of digester) suggests limiting this practice to a maximum time period of 120 days.

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