scholarly journals Energy Consumption and CO2 Emission in Bangladesh: Trends and Policy Implications

2018 ◽  
Vol 5 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Md. Sujahangir Kabir Sarkar ◽  
Sumaiya Sadeka ◽  
Md. Mehedi Hasan Sikdar ◽  
Badiuzzaman
Keyword(s):  
Energy Consumption ◽  
Total Energy ◽  
Co2 Emission ◽  
Policy Implications ◽  
Total Energy Consumption ◽  
Average Growth ◽  
Yearly Average ◽  
The World ◽  
Increasing Trend ◽  
Per Capita

Energy consumption is increasing due to the expansion of economic activity and population size which results higher GHG emission worldwide. The study has examined the trends of energy consumption and CO2 emission in Bangladesh using the secondary data extracted from the World Development Indicators of the World Bank database. The results found that there is an increasing trend of total energy consumption and per capita energy consumption in Bangladesh from 1991 to 2012 where the total energy consumption has been increased nearly three times from 12.55 mtoe (million tonne oil equivalent) in 1991 to 33.17 mtoe in 2012. The total CO2 emission was estimated by 57.07 mtoe in 2011 which was increased by 140.67% compared to the 1991 emission of 15.94 mtoe. Thus, the CO2 emission and per capita emission has also provided increasing trend over the period of 1991 to 2011.It has revealed that the growth of CO2 emission found to be higher than the growth of GDP and energy consumption in Bangladesh. The yearly average growth of CO2 emission has estimated by 6.7% which is higher that the annual average growth of GDP and energy consumption as of 5.25% and 4.77% respectively. This situation calls for serious attention of the country for reducing CO2 emission. Therefore, government needs to develop a national mitigation plan/policy and promote the use and development of green technology, renewable energy and green growth for sustainable energy and environment in Bangladesh.

An Updated Estimate for Energy Use in U.S. Food Production and Policy Implications

2010 ◽  
Author(s):  
Amanda D. Cuellar ◽  
Michael E. Webber
Keyword(s):  
United States ◽  
Energy Consumption ◽  
Total Energy ◽  
Food Production ◽  
Energy Intensity ◽  
Food System ◽  
The United States ◽  
Policy Implications ◽  
Total Energy Consumption ◽  
Food Consumed

In this work we estimate the amount of energy required to produce the food consumed in the United States in 2002 and 2007. Data from government sources and the scientific literature were used to calculate the energy intensity of food production from agriculture, transportation, manufacturing, food sales, storage and preparation. Most data were from 2002; consequently we scaled all data from other years to 2002 by using ratios of total energy consumption in 2002 to total energy consumption in the year data were reported. We concluded that food production required at least 7,880±733 trillion BTU in 2002 and 8,080±752 trillion BTU of energy in 2007, over a third of which came from food handling in homes, restaurants and grocery stores. The energy used to produce food represents approximately 8% of energy consumption. Our estimate is for the energy required to produce the food consumed in the United States and takes into account food imports and exports. To account for net food exports in the agriculture sector we calculated values for the energy intensity of ten food categories and then used the mass of domestic food consumption in each category to calculate the energy embedded in the food consumed in the United States. The amount of energy required to produce the food consumed in the United States has policy implications because it is a substantial fraction of total energy consumption and is responsible for a commensurate amount of greenhouse gas emissions. There are many opportunities for decreasing the energy intensity of food production at all steps of the food system. Education of the public and policy measures that promote energy efficiency in the food sector have the potential for decreasing food waste and the energy intensity of the food system.

scholarly journals HO CHI MINH CITY ECONOMY IN RELATION TO THE VIETNAMESE ECONOMY AND FACTORS AFFECTING HO CHI MINH CITY ECONOMIC GROWTH

2014 ◽  
Vol 17 (3) ◽  
pp. 14-25
Author(s):  
Manh Hong Pham
Keyword(s):  
Energy Consumption ◽  
Co2 Emission ◽  
Ho Chi Minh City ◽  
Green Growth ◽  
Total Energy Consumption ◽  
Factors Affecting ◽  
Emission Level ◽  
Consumption Ratio ◽  
Energy Consumption Ratio ◽  
Per Capita

This study aims at evaluating the green growth in Vietnam in terms of energy consumption and CO2 emission level using the theory of the relationship between economy and environment. Data of Vietnam’s energy consumption and CO2 emission level in the period of 1985-2014 are obtained from the World Bank. Results show that the fossilized energy consumption to the total energy consumption ratio sharply increased from 29.57% in 1985 to 71.05% in 2011. The CO2 emission level also experienced a strong rise, from 0.3595 ton per capita in 1985 to 1.7281 ton per capita in 2010. On average, the CO2 emission per capita is 0.74 tons during this period. In addition, there is also a clear relationship between GDP per capita and CO2 emission level in the period with an explanation capacity of 95.2%. The study also offers some suggestions to the green growth policy in Vietnam for the next period.

scholarly journals Investigation on Energy Consumption of an Olympic Ice Rink and Sports Facility

2021 ◽  
Vol 65 (1) ◽  
pp. 113-118
Author(s):  
Hamdi Sunnetci ◽  
Deniz Yilmaz
Keyword(s):  
Energy Consumption ◽  
Natural Gas ◽  
Total Energy ◽  
Co2 Emissions ◽  
Energy Savings ◽  
Cooling System ◽  
Electrical Energy ◽  
Total Energy Consumption ◽  
Energy Expenditures ◽  
The World

In these days, people spend 87% of their time indoors. Therefore, buildings are responsible for 36% of the total energy consumption and 40% of the CO2 emissions in the world. Besides, energy expenditures can be reduced, especially through improvements in public buildings used by many people. In this study, an annual energy consumption was conducted for an Olympic ice-skating rink and sports complex in Istanbul with a capacity of 900 spectators, was analyzed. Annual energy consumption of the building was 2 915 032 kWh electrical energy and 157 944 m3 natural gas. It was foreseen that 40 000kWh energy savings can be achieved annually with the evaporative pre-cooling system.

scholarly journals Energy Scenarios of Household Sector In Panauti Municipality For Sustainable Development and Energy Security

2019 ◽  
Vol 5 ◽  
pp. 89-100
Author(s):  
Pramila Dhaubanjar ◽  
Amrit Man Nakarmi ◽  
Sushil B. Bajracharya
Keyword(s):  
Energy Consumption ◽  
Total Energy ◽  
Energy Security ◽  
Energy Demand ◽  
Animal Feed ◽  
Secondary Data ◽  
Total Energy Consumption ◽  
Residential Sector ◽  
Per Capita ◽  
End Use

This study aims to analyse energy scenarios of residential sector in Panauti Municipality for sustainable energy development and energy security. This study was done by conducting a questionnaire survey, and was supported by secondary data from various sources. Data analysis was carried out with the help of excel and LEAP software. From the results, total energy consumption of Panauti Municipality is 147 TJ in year 2016 with per capita is 4.72GJ and per capita emission 82kg. The main fuel for consumption in residential sector is firewood with share 44% then followed by LPG with 26% of total energy. Cooking is the most energy intensive end-use, accounting 60% of total energy consumption, followed by animal feed preparation 28%. It was seen that total electrification in all end-use can reduce energy demand by 57% and 35% respectively in AEL and SUD scenario and saved fuel import cost about NRs.235 million. in year 2050. Using nationally available electricity ensures energy security and has co-benefit of emission reduction.

Engines versus electrons: The future of power production

2000 ◽  
Vol 214 (1) ◽  
pp. 1-11 ◽  
Author(s):  
D E Winterbone
Keyword(s):  
Power Generation ◽  
Energy Consumption ◽  
Heat Engine ◽  
Power Production ◽  
The United States ◽  
Total Energy Consumption ◽  
Heat Engines ◽  
Low Load ◽  
The World ◽  
Per Capita

The demands for energy are increasing as countries become richer, and if all mankind achieved the per capita energy consumption of the United States then the total energy consumption of the world would rise by a factor of about 4.5. This would make a large demand on fuel supplies and probably increase pollution beyond a sustainable level. This paper examines the limits to the theoretical efficiency of power generation, including both heat engines and fuel cells, and demonstrates that thermal efficiencies of above 60 per cent are achievable in each case if combined plants are used. It is shown that the fuel cell has benefits over the heat engine when the plant operates for a significant time at low load.

scholarly journals A Study on Energy Consumption Pattern in Developing Areas of Western Himalayan State

2015 ◽  
Vol 10 (3) ◽  
pp. 903-911 ◽  
Author(s):  
Lalit Kumar ◽  
Rajeev Aggarwal ◽  
Parminder Baweja
Keyword(s):  
Energy Consumption ◽  
Total Energy ◽  
Co2 Emission ◽  
Carbon Emission ◽  
Energy Sources ◽  
Consumption Pattern ◽  
Daily Energy ◽  
Per Capita ◽  
Fuelwood Consumption ◽  
Energy Consumption Pattern

A study was carried out on energy consumption and carbon emission in growth oriented Dharmpur block of Solan district of Himachal Pradesh. The energy consumption pattern revealed that fuelwood consumption contributed highest (80.43%) proportion of total energy mix followed by electricity (11.55%), kerosene (2.87%), dung cake (2.79%), LPG (2.31%) and diesel (0.08%). The daily energy consumption pattern in kg of coal equivalent for fuelwood, electricity, kerosene, dung cake, LPG and diesel was worked to be as 10.09, 1.45, 0.36, 0.35, 0.29 and 0.01, respectively. The per capita annual energy consumption of electricity was estimated to be 160 kWh, kerosene (1.29 liters), dung cake (0.07 tonnes) and fuelwood (0.76 tonnes). Annual CO2 emission from households in Dharmpur block was estimated as 86,603 tonnes out of which 74,275 tonnes (80.64%) was emitted from the fuelwood consumption only. The annual per capita energy consumption from all sources for Dharmpur block was estimated to be 12.5 tonnes of coal equivalent. The per capita CO2 emission from different energy sources in Dharmpur block was 1.1 tonnes.

scholarly journals Mapping the Energy Flows and GHG Emissions of a Medium-Size City: The Case of Valladolid (Spain)

2021 ◽  
Vol 13 (23) ◽  
pp. 13181
Author(s):  
Gaspar Manzanera-Benito ◽  
Iñigo Capellán-Pérez
Keyword(s):  
Energy Consumption ◽  
Total Energy ◽  
Local Level ◽  
Ghg Emissions ◽  
Medium Size ◽  
Total Energy Consumption ◽  
Energy Flows ◽  
Ghg Reduction ◽  
Per Capita ◽  
The City

Valladolid (Spain) is a medium-size city (~300,000 inhabitants) that established a greenhouse (GHG) emissions reduction target in 2011 of 20% from 2010–2020. However, tracking the evolution of GHG in medium-size cities is challenging due to the general lack of compulsory data collection at this scale and issues with boundaries when attempting alternative estimates. Here, we propose and apply a novel method to estimate the evolution of GHG emissions due to energy consumption for the period of 2010–2019 in Valladolid, combining top-down and bottom-up data following a physical energy flows approach. The energy consumption of the city is estimated by main sectors and types of energies. The results show that, throughout the past decade, both total energy consumption and its sector end-use share did not significantly change: final energy consumption remained at around 24 MWh (86.5 GJ) per capita and was still highly dependent on fossil fuels, especially natural gas and oil products (over 70% of total energy supply). The GHG reduction by 2019 was ~11% with relation to 2010 and, thus, had not reached the set objective; in per capita terms, the GHG reduction was lower (~6%) due to population loss during the period. The trend, however, has not been monotone and has instead followed a U-shape strongly correlated with the economic crisis and subsequent recovery, suggesting that transition policies have had, at most, a modest effect on the overall results. The analysis shows, first of all, the limitations of statistical sources at a local level, both for energy and mobility, which do not allow more accurate results in identifying the main energy consumers to be reached; and, secondly, the need for strong decarbonization measures which have to be set urgently at all the relevant institutional levels. Reaching GHG neutrality in the city by 2050 requires reducing the GHG emissions by ~13%/year, which is ~20 times faster than for the 2010–2019 average of 0.6%/year.

scholarly journals CO2 Emission, Energy Consumption and Economic Development in Malaysia

2015 ◽  
Vol 6 (1) ◽  
pp. 674-678
Author(s):  
Hamizah bt Muhyidin ◽  
Md. Khaled Saifullah ◽  
Yap Su Fei
Keyword(s):  
Economic Growth ◽  
Energy Consumption ◽  
Total Energy ◽  
Granger Causality ◽  
Industrial Production ◽  
Co2 Emission ◽  
Total Energy Consumption ◽  
Production Index ◽  
Industrial Production Index ◽  
Long Run

Environmental awareness and its relation to the development of economy have garnered increased attention in recent years. This study analyzes the long-run relationship between environment degradation, economic growth, total energy consumption and industrial production index growth in Malaysia from year 1970 to 2012. The time series data are estimated using Johansen and Julies Cointegration test and VECM Granger causality test. The empirical analysis suggests a long-run cointegration relationship between all series. Granger causality analysis indicates strong evidence of uni-directional Granger causality running from economic growth and industrial production index growth to total energy consumption in the long-run. Also, the result shows evidence of a bi-directional Granger causality between total energy consumption and CO2 emission. This situation suggests that a pollution abatement policies and higher investment to control for CO2 emission will not jeopardize the economic sustainability and industry output in the long run. This study suggests that previous policies should be complimented with increasing the efficiency of energy use by employing a fuel balancing strategies and promoting the use of renewable energy resources like bio-fuel, solar energy and wind.

Energy savings potential of new aeration system: Full scale trials

2012 ◽  
Vol 7 (4) ◽  
Author(s):  
A. Lazić ◽  
V. Larsson ◽  
Å. Nordenborg
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Total Energy ◽  
Energy Savings ◽  
Treatment Plant ◽  
Full Scale ◽  
Total Energy Consumption ◽  
Aeration System ◽  
Fine Bubble ◽  
Aeration Control

The objective of this work is to decrease energy consumption of the aeration system at a mid-size conventional wastewater treatment plant in the south of Sweden where aeration consumes 44% of the total energy consumption of the plant. By designing an energy optimised aeration system (with aeration grids, blowers, controlling valves) and then operating it with a new aeration control system (dissolved oxygen cascade control and most open valve logic) one can save energy. The concept has been tested in full scale by comparing two treatment lines: a reference line (consisting of old fine bubble tube diffusers, old lobe blowers, simple DO control) with a test line (consisting of new Sanitaire Silver Series Low Pressure fine bubble diffusers, a new screw blower and the Flygt aeration control system). Energy savings with the new aeration system measured as Aeration Efficiency was 65%. Furthermore, 13% of the total energy consumption of the whole plant, or 21 000 €/year, could be saved when the tested line was operated with the new aeration system.

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