Cooking Energy Conservation by Using Improved Stove: a Case Study on Thaipara Village of Magura Bangladesh

2021 ◽  
Vol 12 (1-2) ◽  
pp. 21-27
Author(s):  
GK Biswas ◽  
MMM Hoque ◽  
MH Kabir ◽  
M Rehnuma
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Crop Residues ◽  
High Efficiency ◽  
Rural Poverty ◽  
Biomass Energy ◽  
Energy Utilization ◽  
Total Biomass ◽  
Fuel Wood ◽  
Cooking Energy

The study was conducted to investigate the energy efficiency of traditional and improved cooking stove, potential energy conservation using improved stove and overall environmental impacts of those stoves at Thaipara of Magura district in Bangladesh. In the study area, almost 100% of the households use biomass as their cooking fuel in traditional stoves. Questionnaire Survey (QS) was conducted to fulfill the research objectives. The result of the study showed that total biomass energy consumption is 14897 GJ per year, whereas, the per capita cooking energy consumption is about 4.82 GJ per year. The results also revealed that biomass: fuel wood, dung and crop residues are the 100% sources of the total energy used in the cooking sectors. The combination of high demand aggravated by low use efficiency has contributed to deforestation, rural poverty and the energy shortage in the study village. Results of the study stated that by introducing improved stove with higher level of efficiency, well ventilation and using good quality of fuel can reduce the harmful impacts of cooking energy utilization and cooking systems on environment significantly. In this regard, formulation and implementation of a nationwide high efficiency cooking stove dissemination program would be very promising for cooking energy conservation at rural sectors. Environ. Sci. & Natural Resources, 12(1&2): 21-27, 2019

scholarly journals A Dual-Objective Substation Energy Consumption Optimization Problem in Subway Systems

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1876 ◽  
Author(s):  
Hongjie Liu ◽  
Tao Tang ◽  
Jidong Lv ◽  
Ming Chai
Keyword(s):  
Energy Consumption ◽  
Energy Storage ◽  
Energy Conservation ◽  
Optimization Problem ◽  
Optimization Problems ◽  
Energy Utilization ◽  
Total Size ◽  
Energy Consumption Optimization ◽  
Regenerative Energy ◽  
Timetable Optimization

Maximizing regenerative energy utilization is an important way to reduce substation energy consumption in subway systems. Timetable optimization and energy storage systems are two main ways to improve improve regenerative energy utilization, but they were studied separately in the past. To further improve energy conservation while maintaining a low cost, this paper presents a strategy to improve regenerative energy utilization by an integration of them, which determines the capacity of each Wayside Energy Storage System (WESS) and correspondingly optimizes the timetable at the same time. We first propose a dual-objective optimization problem to simultaneously minimize substation energy consumption and the total cost of WESS. Then, a mathematical model is formulated with the decision variables as the configuration of WESS and timetable. Afterwards, we design an ϵ -constraint method to transform the dual-objective optimization problem into several single-objective optimization problems, and accordingly design an improved artificial bee colony algorithm to solve them sequentially. Finally, numerical examples based on the actual data from a subway system in China are conducted to show the effectiveness of the proposed method. Experimental results indicate that substation energy consumption is effectively reduced by using WESS together with a correspondingly optimized timetable. Note that substation energy consumption becomes lower when the total size of WESS is larger, and timetable optimization further reduces it. A set of Pareto optimal solutions is obtained for the experimental subway line—based on which, decision makers can make a sensible trade-off between energy conservation and WESS investment accordingly to their preferences.

Energy Saving Studies in Industrial Facilities

2008 ◽  
Author(s):  
Mehmet Kanoglu ◽  
Ilker Karabay ◽  
Ibrahim Dincer
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Energy Use ◽  
High Efficiency ◽  
Industrial Sector ◽  
Total Energy Consumption ◽  
Industrial Facilities ◽  
Conservation Measures ◽  
Energy Conservation Measures

Efficient energy use is critical for the success of any industrial facility since reduced energy consumption through energy conservation/saving programs can benefit not only consumers and utilities, but society in general as well. In particular, reduced energy consumption generally leads to reduced emissions of greenhouse gases and other air pollutants into the environment. It also helps reduce the operational costs in the facility. There is a strong need to take some energy saving measures in every plant/ facility. Although these may be quite diverse, some of these measures include thermal insulation, use of more efficient equipment, heat recovery systems, high efficiency lighting, changing the fuel, reducing the cost of compressed air, and enhancing productivity. In this study, some certain energy conservation measures are considered for assessing a packaging film manufacturing facility in Gaziantep, Turkey. Taking advantage of dry and hot climates of the city, cooling compressor inlet air by evaporative cooling technique is also assessed. Our investigation shows that there is a huge room for energy conservation measures. The total savings potential are expected to be 869,350 YTL (about $725,000) representing about 16% of the total energy consumption. The payback periods for the identified measures are justified. We believe that the results are typical rather than exceptional for the industrial sector in Turkey.

scholarly journals The state of biomass energy in Serbia

2004 ◽  
Vol 8 (2) ◽  
pp. 5-20 ◽  
Author(s):  
Mladen Ilic ◽  
Borislav Grubor ◽  
Milos Tesic
Keyword(s):  
Energy Demand ◽  
Biomass Energy ◽  
Energy Utilization ◽  
Actual State ◽  
Energy Potential ◽  
Fuel Wood ◽  
Biomass Residues ◽  
Research Activities ◽  
Total Energy Balance ◽  
Policy Information

The paper presents a review of the energy potential of different types of biomass residues in agriculture and forestry, and actual state of biomass energy utilization in Serbia. The estimated values of annual energy potential are: about 1.7?10 6 toe (ton of oil equivalent) in biomass residues in agriculture, comprising crop farming, fruit growing, viniculture and stock breeding, and about 1 million toe of biomass from forestry, including different biomass residues and fuel wood. The total annual biomass energy potential of about 2.7?10 6 toe represents 40% of the total coal energy production in Serbia. Towns located in agricultural regions and in regions rich in forest can satisfy their energy demand for centralized heading systems with biomass residues from the territory of their own municipality. With appropriate energy policy, information campaign, research activities and general regulation in the field of biomass energy utilization, the share of biomass energy consumption in total energy balance can be significantly increased.

scholarly journals Evaluation of Home Energy Efficiency Improvements in a Hot Desert Climate in Northwestern Mexico: The Energy Saving vs. Money Saving Conflict

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7909
Author(s):  
Edgar Valenzuela ◽  
Hector Campbell ◽  
Gisela Montero ◽  
Marcos A. Coronado ◽  
Alejandro A. Lambert-Arista ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Electronic Device ◽  
Electric Energy ◽  
Energy Utilization ◽  
Photovoltaic System ◽  
Conservation Strategies ◽  
Electrical Grid ◽  
Electric Energy Consumption ◽  
Northwestern Mexico

Reducing household energy consumption is one of the most important strategies used to decrease fossil fuel consumption and greenhouse gases emissions, and to encourage renewable energy utilization. Most energy conservation strategies in the domestic sector are aimed at preferential loans, i.e., purchasing renewable electricity or to improve the efficiency of home appliances, such as air conditioning and lighting. However, despite the relative economic successes of these technologies, they have not had expected impacts in regard to energy consumption. In this work, the authors analyzed the consumption patterns of two equivalent households—one was adapted with improved thermal insulation and a 1.2 kW photovoltaic system to reduce consumption from the electrical grid. The results show that dwellings where no improvements were made registered lower electric energy consumption, due the fact that users were aware that no strategy had been implemented, and its consumption; hence, electricity payments depended solely on one’s attention over the electronic device operations. On the other hand, energy conservation strategies in households promotes confident and relaxed attitudes toward the use of energy, leading to lower energy billings, but a higher gross energy consumption.

scholarly journals Factors affecting households’ choice of cooking energy in Enugu State, Nigeria

Agro-Science ◽  
2020 ◽  
Vol 19 (4) ◽  
pp. 6-13
Author(s):  
N.A. Onyekuru ◽  
C.A. Ifejirika ◽  
D.M. Onuigbo ◽  
R.A. Mebo ◽  
E.C. Eboh
Keyword(s):  
Energy Consumption ◽  
Urban Areas ◽  
T Test ◽  
Energy Sources ◽  
Fuel Wood ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Cooking Energy ◽  
Enugu State ◽  
Fire Accident

Households need energy for various activities, chief among these is cooking, which accounts for a greater percentage of the total domestic energy consumption. In Nigeria, household cooking energy accounts for a major part of the total energy consumed. This study was designed to explore the determinants of cooking energy use and preferences among households in Enugu State, Nigeria. Specifically, the aims of the study were; to ascertain the differences in the quantities of cooking energy sources used by households, determine the preferences of each of the energy sources by the households, reasons for preferences for each of the energy sources, and the problems associated with the use of each of the energy source. Multistage sampling technique was adopted in this study. One hundred and sixty-six respondents were used for the study. Primary data were collected and analyzed using a t-test and descriptive statistics. Results showed that the mean quantities of kerosene used in the rural and urban areas were about 26 and 36 litres per month that of fuel wood were about 231 and 306 kg, respectively. The t-test result showed that there exist significant differences between the quantities of kerosene and fuel wood used in the rural and urban areas. The likert-type scale result showed that the cooking energy with the highest perceived level of efficiency was liquefied petroleum gas (LPG), while the energy with the highest level of preference was kerosene. The major reasons for the preference for LPG was because it cooks fast and clean, that of kerosene was lower chances of fire accident than LPG. For fuel wood, preference was due to fast cooking and better taste of food, while that of charcoal was due to clean cooking and reduced cases of fire accident. The major constraints militating against the use of different cooking energy sources, even when they are  preferred, were scarcity, expensiveness and risk of fire outbreak for LPG and kerosene, while for fuel wood and charcoal, they were pollution and  the fact that it produces a lot of black soot. There is need to implement incentive-based policies to encourage the use of LPG and kerosene, through targeted subsidies and cost reduction. Key words: energy consumption, efficiency, preference, pollution, income

scholarly journals Research on Decorative and Integrated Thermal Insulation Board for External Wall

2020 ◽  
Vol 165 ◽  
pp. 05013 ◽  
Author(s):  
Zhang Zhanhua ◽  
lI jie ◽  
Shi Changyu ◽  
Zhang Chao ◽  
Wang An ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Fly Ash ◽  
Energy Conservation ◽  
Thermal Insulation ◽  
Building Energy ◽  
Energy Utilization ◽  
Wall Structure ◽  
Building Energy Consumption ◽  
Building Energy Conservation ◽  
Heat Preservation

With the acceleration of globalization, industrialization and informatization, the consumption of energy resources is increasing, and the building energy consumption accounts for about 30%, so the building energy conservation has become an important part of energy conservation and emission reduction. At the same time of economic development, we should reduce building energy consumption and do a good job in building energy conservation [1], and put forward the following ways: the improvement of building’s own heat preservation and insulation performance; the improvement of energy utilization system efficiency such as electricity and heating; the development and utilization of new energy; and the proper management of energy utilization equipment system. Among them, the most effective way is to improve the thermal insulation performance of the building itself. The thermal insulation of enclosure and the air tightness of doors and windows are two important parts of thermal insulation. According to the relevant data [2], the heat loss of enclosure structure accounts for 40-50% of the building energy consumption, and the heat loss of wall structure accounts for about 70%. Therefore, the improvement of the thermal insulation requirements of the wall structure plays a huge role in building energy conservation In this paper, the experimental research on the exterior wall thermal insulation board of decoration and heat preservation integration is carried out. The influence of fly ash content, asbestos fiber content, composite active activator, waterproof agent and other additives on the physical properties of fiber-reinforced fly ash / cement board is discussed. The optimal content of various factors is determined and its mechanism is analyzed. The optimum proportion of fiber reinforced fly ash / cement board was determined by orthogonal test.

scholarly journals Energy conservation potentials of an office buildings in Northern Nigeria: A case study of Katsina secretariat complex

2020 ◽  
Vol 18 (2) ◽  
pp. 629
Author(s):  
Muhammad Rabiu Abbas
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Total Energy ◽  
Energy Savings ◽  
Effective Means ◽  
Electrical Energy ◽  
Office Buildings ◽  
Energy Utilization ◽  
Maintenance Cost ◽  
Consumption Pattern

<p>The importance of energy conservation in our contemporary world cannot be overemphasized, efficient utilization of energy has significant impact in improving economy at all levels of human endeavour. No doubt, adequate and appropriate utilization of energy especially electrical energy boosts up any organizational developmental activities. Recently, research interest has emphasis towards efficient energy utilization and energy conservation as the effective means of reducing energy consumption in buildings thereby reducing its maintenance cost. This paper investigated and analysed the energy consumption characteristics of Katsina state secretariat complex for the period of 3 years (i.e. from 2014 to 2016) based on site surveys and analysis of the energy end users present, using the records of electricity utility bills and Automotive Gas Oil (AGO), being the two energy carriers of the complex. Records have shown that, the secretariat complex average electricity and AGO annual consumptions were found as 1045661.95 kWh and 116650.33 litres of AGO (which is equivalent to 1250491.54 kWh) respectively. The investigation revealed a distinct consumption pattern, indicating peak energy consumption during the hot months of April to August due to significant air conditioning requirements. The result of the investigation of the energy conservation potentials in the secretariat complex have shown that, energy savings of up to 6.5% of the total energy can be achieved by switching-off all security lights during the day. While turning off the air conditioners in the early morning hours of between 8am to 10am would provide a saving of up to 19% of the total energy. Furthermore, a saving of 16.5% of the total energy can be achieved when the incandescent lamps are replaced with the energy efficient ones. The energy conserving measures (ECMs) followed in this research has shown significant savings in terms of both energy and cost, and if well implemented can give way for a sustainable energy management of similar office buildings in future.</p>

scholarly journals Assessment of Selected Biomass Energy Potential in Afghanistan

2019 ◽  
Vol 4 (6) ◽  
pp. 6-14
Author(s):  
Abdul Ghani Noori ◽  
P. Abdul Salam ◽  
Agha Mohammad Fazli
Keyword(s):  
Crop Residues ◽  
Sustainable Use ◽  
Animal Manure ◽  
Primary Energy ◽  
Biomass Energy ◽  
Total Biomass ◽  
Energy Potential ◽  
Energy Needs ◽  
Biomass Resources ◽  
Development Plans

Biomass plays a major role in satisfying the energy needs of Afghanistan, especially in the residential sector where fuel demand is primarily met in the form of fuelwood, charcoal, crop residues and animal manure. Till now, enough work has not been undertaken to assess the biomass energy potential in the country to support renewable energy development plans and more sustainable use of biomass resources. This paper is limited to the assessment of biomass energy potential from the following resources: (A) forest fuelwood and charcoal, (B) crop residues (wheat, rice, barley and maize residues) and (C) cattle manure for the years 2012-13 and 2013-14. The study assesses a total biomass energy potential of 97,310 TJ during the period 2012-13 and 99,012 TJ during the period 2013-14. It is observed that only about 52% of the estimated biomass energy potential is being exploited. The estimated energy potential of the selected biomass could contribute up to 69% in the primary energy consumption of Afghanistan (140,966 TJ) during the year 2012-13. 

scholarly journals Unlocking the investment impact of biomass energy utilization on environmental degradation for an isolated island

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Bright Akwasi Gyamfi ◽  
Divine Q. Agozie ◽  
Murad A. Bein ◽  
Festus Victor Bekun ◽  
Festus Fatai Adedoyin
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Carbon Dioxide Emission ◽  
Well Being ◽  
Biomass Energy ◽  
Energy Utilization ◽  
Series Data ◽  
Biomass Utilization ◽  
Content Type ◽  
The Impact

Purpose Discussions on environment-friendly production connected with the concerns of growing biomass emissions have gained much attention. In this regard, this study aims to explore the issue of biomass energy consumption and its related emission effects on the economic and environmental well-being of the economy of Cyprus. Design/methodology/approach This study sources time series data on specific variables from the Global Material Flow and the World Bank’s World Development Indicators (WDI, 2020) between 1990 and 2016. The Robust least square (ROB-L2) in conjunction with Pesaran autoregressive distributed lag (ARDL) methodology analysis techniques was used in addition to the Granger causality tests to examine the direction of causality flow between the variables under consideration. Findings The results indicate that biomass energy usage in the long run reduces pollution and negatively correlates with CO2 emissions level. Also, the decline of emission is influenced by increased foreign direct investment (FDI), thus, activities of foreign investors contribute to combating emission in the country. According to empirical results, non-renewable energy consumption showed both positive and negative influences on increased emission level, whereas economic growth is increasing carbon dioxide emission for the case of Cyprus. Originality/value This study applies current reliable data that offers renewed insights and sheds light on the state of affairs on biomass utilization from a developing country perspective. Additionally, it extends the discourse on the impact of biomass utilization on CO2 emissions by considering the impact of FDI, trade flow and energy consumption in a carbon-income function built on the liner version of the environmental Kuznets curve hypothesis. Although this is by no means exhaustive, the study pioneers the discourse on how FDI with biomass utilization among other relevant variables influences carbon dioxide emission.

Impact of roof shading on building energy performance in warm & humid climatic places of India

2020 ◽  
pp. 50-64
Author(s):  
Kuladeep Kumar Sadevi ◽  
Avlokita Agrawal
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Performance ◽  
General Assumption ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Passive Cooling ◽  
Base Case ◽  
U Value ◽  
The Impact

With the rise in awareness of energy efficient buildings and adoption of mandatory energy conservation codes across the globe, significant change is being observed in the way the buildings are designed. With the launch of Energy Conservation Building Code (ECBC) in India, climate responsive designs and passive cooling techniques are being explored increasingly in building designs. Of all the building envelope components, roof surface has been identified as the most significant with respect to the heat gain due to the incident solar radiation on buildings, especially in tropical climatic conditions. Since ECBC specifies stringent U-Values for roof assembly, use of insulating materials is becoming popular. Along with insulation, the shading of the roof is also observed to be an important strategy for improving thermal performance of the building, especially in Warm and humid climatic conditions. This study intends to assess the impact of roof shading on building’s energy performance in comparison to that of exposed roof with insulation. A typical office building with specific geometry and schedules has been identified as base case model for this study. This building is simulated using energy modelling software ‘Design Builder’ with base case parameters as prescribed in ECBC. Further, the same building has been simulated parametrically adjusting the amount of roof insulation and roof shading simultaneously. The overall energy consumption and the envelope performance of the top floor are extracted for analysis. The results indicate that the roof shading is an effective passive cooling strategy for both naturally ventilated and air conditioned buildings in Warm and humid climates of India. It is also observed that a fully shaded roof outperforms the insulated roof as per ECBC prescription. Provision of shading over roof reduces the annual energy consumption of building in case of both insulated and uninsulated roofs. However, the impact is higher for uninsulated roofs (U-Value of 3.933 W/m2K), being 4.18% as compared to 0.59% for insulated roofs (U-Value of 0.33 W/m2K).While the general assumption is that roof insulation helps in reducing the energy consumption in tropical buildings, it is observed to be the other way when insulation is provided with roof shading. It is due to restricted heat loss during night.

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