scholarly journals Determinants of Energy Demand Efficiency: Evidence from Japan’s Industrial Sector

Energy Policy ◽  
2020 ◽  
Author(s):  
Akihiro Otsuka
Keyword(s):  
Energy Demand ◽  
Industrial Sector

scholarly journals A Novel Hybrid Technique of Frequency Control for Distributed Energy Resources

2021 ◽  
Vol 40 (1) ◽  
pp. 180-204
Author(s):  
Hasham Khan
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Energy Demand ◽  
Frequency Control ◽  
Industrial Sector ◽  
Operating Conditions ◽  
Small Scale ◽  
Hybrid Technique ◽  
Operating Characteristics ◽  
Power Distribution System

The rapid increase in the population and fastest development in the industrial sector has increased the energy demand throughout the world. Frequent outages and load shedding has seriously deteriorated the efficiency of the electrical power distribution system. Under such circumstances, the implementation of Distributed Generation (DG) is increasing. Small hydel generators are considered as the most-clean and economical for generating electrical energy. These are very complex nonlinear generators which usually exhibits low frequency electromechanical oscillations due to insufficient damping caused by severe operating conditions. These DGs are not connected to the utility in many cases because, under varying load, they cannot maintain the frequency to the permissible value. This work presents detailed analysis of operating characteristics and proposes a hybrid frequency control strategy of the small hydel systems. The simulation and testing is performed in MATLAB, the results verified the improved performance with the recommended method. The proposed method conserves half of the power consumption. The control scheme regulates the dump load by connecting and disconnecting it affectively. The application of presented methodology is convenient in the deregulated environment, especially under the severe shortage of energy. The proposed model keeps the frequency of system at desired level. It reduces the noise, thereby improving the response time of the designed controller as compared to conventional controllers. The innovative scheme also provides power for small scale industrial, agricultural and other domestic application of far-off areas where the supply of utility main grid is difficult to provide. The recommended scheme is environmental friendly and easy to implement wherever small hydel resources are available.

Smart Grid Implementation of the Industrial Sector

2022 ◽  
pp. 721-735
Author(s):  
Amam Hossain Bagdadee ◽  
Li Zhang
Keyword(s):  
Smart Grid ◽  
Energy Demand ◽  
Optimization Technique ◽  
System Security ◽  
Energy System ◽  
Industrial Sector ◽  
Second Step ◽  
Test Results ◽  
System Transformation ◽  
Swarm Optimization

In the development of smart grid solutions, the contribution of industrial consumers is prime essential to ensure the energy system transformation. The present article introduces a covenant with the implementation of an economic dispatch (ED) in the electrical framework with the smart grid. The proposed ED strategy is comprised of two steps; the first step includes the swarm optimization technique of energy ED with the net loss of the power system and the second step consists of an ED that considers the cutoff points of system security. The prime goal of the second step is to minimize the net loss and the foundation development of the generator cost function. The test framework is comprised of four generators with one battery storage apparatus that considers the energy demand. The ED will perform for 24 hours. The test results show that the two-step ED technique not only reduces system losses but also the fuel consumption of the system as well. This article gives ideas to the industrial consumers to implement a smart grid in the industrial sector.

scholarly journals Drivers and Barriers to Industrial Energy Efficiency in Textile Industries of Bangladesh

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1775 ◽  
Author(s):  
A S M Monjurul Hasan ◽  
Mohammad Rokonuzzaman ◽  
Rashedul Amin Tuhin ◽  
Shah Md. Salimullah ◽  
Mahfuz Ullah ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Management ◽  
Energy Demand ◽  
Management Practices ◽  
Capital Expenditure ◽  
High Energy ◽  
Industrial Sector ◽  
Energy Prices ◽  
Energy Service ◽  
Textile Industries

Bangladesh faced a substantial growth in primary energy demand in the last few years. According to several studies, energy generation is not the only means to address energy demand; efficient energy management practices are also very critical. A pertinent contribution in the energy management at the industrial sector ensures the proper utilization of energy. Energy management and its efficiency in the textile industries of Bangladesh are studied in this paper. The outcomes demonstrate several barriers to energy management practices which are inadequate technical cost-effective measures, inadequate capital expenditure, and poor research and development. However, this study also demonstrates that the risk of high energy prices in the future, assistance from energy professionals, and an energy management scheme constitute the important drivers for the implementation of energy efficiency measures in the studied textile mills. The studied textile industries seem unaccustomed to the dedicated energy service company concept, and insufficient information regarding energy service companies (ESCOs) and the shortage of trained professionals in energy management seem to be the reasons behind this. This paper likewise finds that 3–4% energy efficiency improvements can be gained with the help of energy management practices in these industries.

scholarly journals Implementation of the ISO 50001 standard to sustainable energy and economic saving the industrial sector

2020 ◽  
Vol 25 (2) ◽  
pp. 261-268
Author(s):  
Guillermo Valencia ◽  
Katherin Nahomy Rodriguez ◽  
Gloria Raquel Torregroza Matos ◽  
Carlos Acevedo ◽  
Jorge Duarte Forero
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Gap Analysis ◽  
Energy Performance ◽  
Industrial Sector ◽  
Energy Costs ◽  
Working Pressure ◽  
Economic Saving ◽  
Save Energy

Given the growth in energy demand, the limited energy resources, and the high environmental impact of energy generation from fossil fuels, it is vital to find methods to obtain save energy costs in different sectors, such as residential, industrial, transportation sector, and domestic. This paper presents a methodology that allows the implementation of an energy management system following the guidelines of the ISO 50001 standard. A gap analysis was performed to determine the position of the organization with respect to the requirements of the standard, and the next step was the inspection of the plant to find opportunities for improvement that would lead to energy optimization. From the results, six equipment was the cause of the 82% of the energy consumption in the production process, and some recommendation was proposed with the aim to optimize energy consumption. A methodology is proposed for the standard implementation, which can be implemented by different organizations from different fields to achieve savings in energy costs in the plant. Some relevant actions to improve the energy performance of the plant were proposed, such as the optimization of the compressed air system, the reduction of potential numbers of leakage, and the reduction of the working pressure of the system.

scholarly journals Energy Conservation and Efficiency by Energy Efficient Motor in India

2019 ◽  
Vol 9 (1) ◽  
pp. 3917-3926
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Greenhouse Gas ◽  
Energy Efficient ◽  
Energy Demand ◽  
Industrial Sector ◽  
Primary Energy ◽  
Primary Energy Consumption ◽  
Ghg Emission ◽  
The Government

Electricity demand in India is increasing at a rapid pace because of growth in Economy, urbanization, infrastructure development and the living standard of people. According to the United Nation’s world population prospects (2017), India’s population is 1.34 billion which will go grow further and surpass China by 2025[1]. According to the IMF, the Indian economy is expected to grow by 7.5% in FY19-20 and 7.7% in FY20-21[2]. Increased population and growth in GDP are associated with increased energy demand. India’s primary energy consumption was 754 Mtoe in 2017 and expected to reach 1928 Mtoe in 2040[3]. Major energy demand is from the Industrial sector which was 51% of total primary energy consumption in 2017 and expected to reach 990 Mtoe, by 2040 [3]. Rising energy demand and dependence on coal-based energy generation capacity, leading to the emission of Green House Gases (GHG). Most of India’s Greenhouse gas emissions are from energy sector having 68.7% contribution in overall greenhouse gas emission. Agriculture, Industrial process land-use change and forestry (LUCF), and waste, contributed 6.0%, 3.8% and 1.9% respectively in overall GHG emission in 2014. [4]. Reducing the GHG emission in India is a major challenge in front of the Government as the Government has to maintain sustainable growth with the contribution in mitigating the effect of climate change. Govt. has pledged to Paris Agreement for the reduction in emission intensity of GDP by 33-35% by 2030 below 2005 level [5]. In the reduction of GHG emission, energy efficiency's contribution is estimated at approx. 51% [6]. The industrial sector can contribute most in reducing GHG emission and contributes to nationally determined contribution. Industry consumes 40%-45% of total energy consumption and motor-driven system consumes 70% [7] of total Industrial energy. Most of the energy in Industries are consumed to run the motor for various purposes and consumes a major chunk of energy which can be reduced to a significant level by replacing the standard motor with energy efficient motor. 90% of the motor in Indian industries are IE1 or below IE1 standard [8] and required replacement. By installing the energy efficient motor, the industry can save huge energy, cost and reduce CO2 emission. Observing the opportunity for energy saving by energy efficient motor, this paper aims to analyze how energy efficient motor is capable of reducing energy consumption, and how it can contribute to energy conservation. Methodology adopted in this paper is secondary research, that answers to questions like; why Industry need energy efficient motor, how energy efficient motor can save energy and increases efficiency, cost-benefit analysis of installing energy efficient motor, barriers to the installation of energy efficient motor and solution to those barriers in migration from the standard motor to energy efficient motor in India.

scholarly journals Energy foresight: Exploration of CO2 reduction policy scenario for Ecuador during 2016–2030

Energetika ◽  
2019 ◽  
Vol 65 (1) ◽  
Author(s):  
Gabriela Araujo ◽  
Andrés Robalino-López ◽  
Natalia Tapia
Keyword(s):  
Co2 Emissions ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Driving Forces ◽  
Early Stage ◽  
Life Quality ◽  
Industrial Sector ◽  
Energy Matrix ◽  
Alternative Scenario ◽  
Kaya Identity

The energy sector is an important factor that influences life quality and economic prosperity. Differences in infrastructure, technology and even in culture of each country make it imperative to include their own characteristics into energy analyses, making it necessary to identify the different types of sources of CO2 emissions and their magnitudes. The aim of this paper is to present a foresight analysis of the productive and energy matrices dynamics in Ecuador for the period 2016–2030 and to propose public policy that contributes to sustainable development. In a first stage, the research has an explanatory character, referring to construction of a model, which uses an extended variation of the Kaya Identity where the volume of CO2 emissions may be examined quantifying contributions of productive sectors activity, sectorial energy intensity, energy matrix, and CO2 emission features. Subsequently, the research acquires a predictive-experimental nature, using exploratory scenarios. That allows linking historic and present events with hypothetical futures. In consequence, driving forces of the scenario can be explained and analysed using quantitative modelling based on the Kaya Identity and qualitative narratives. Within this study two scenarios were built. The Business as Usual scenario, without modifying the structure of productive and energy matrices, and the Alternative scenario that seeks to reduce the consumption of oil derivatives in land transport, which consumes 50% of the country’s energy demand. The Alternative scenario, which promotes the use of biofuels, projects to reduce the CO2 emissions from 45.58 to 43.41 Mt of CO2 equivalent for 2030. The policy on biofuels in Ecuador is at an early stage. So, biofuels offer important opportunities: i) diversification of the energy matrix, ii) contribution to energy security, iii) promotion of the growth of the industrial sector, and iv) substitution of fossil fuels and mitigation of the greenhouse gas effects.

scholarly journals The Energy Demand in the Industrial Sector of Pakistan

1991 ◽  
Vol 30 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Salim Chishti ◽  
Fakhre Mahmood
Keyword(s):  
Energy Demand ◽  
Industrial Sector ◽  
Partial Substitution ◽  
Energy Prices ◽  
Price Elasticities ◽  
Inelastic Demand ◽  
Separate Factor ◽  
Demand Equations ◽  
The Cost ◽  
Substitution Elasticities

The purpose of this study is to analyse the role of energy in the manufaCblring sector of Pakistan. The translog cost function alongwith the input demand equations corresponding to enel'kY, capital, and labour have been estimated, using Zellner's iterative procedure. Time trend has been included in the cost equation in view of the low Durbin-Watson statistics. The results justify the inclusion of energy as a separate factor of production. Price elasticities and Allen-Uzawa partial substitution elasticities have been estimated. Own price elasticities indicate a rather inelastic demand fOl" inputs. Cross-price elasticities show that energy and labour, and capital and labour are substitutes. The partial substitution elasticities between enellY and capital are negative; which implies that higher energy prices will adversely affect investment in capital goods. On the other hand, the positive substitution elasticity between energy and employment implies that higher energy prices would induce more labour absorption.

scholarly journals Economic Transition, Technology Change, and Energy Consumption in China: A Provincial-Level Analysis

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2581 ◽  
Author(s):  
Xu Liu ◽  
Jiang Lin ◽  
Junfeng Hu ◽  
Hongyou Lu ◽  
Jiaru Cai
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Demand ◽  
Economic Transition ◽  
Eastern China ◽  
National Level ◽  
Steel Production ◽  
Industrial Sector ◽  
Eastern Region ◽  
Tertiary Sector

This paper conducts panel analysis to evaluate the effects of a structural economic shift from the industrial to the tertiary sector, a reduction in industrial overcapacity, and improvements in energy efficiency on energy consumption using data for 30 Chinese provinces from 1995 to 2015. We find that, at the national level, the structural shift to the tertiary sector, the reduction in cement and steel production, and the increase in energy efficiency in the industrial sector all have statistically significantly negative effects. We also divide the sample into three geographic and economic regions to evaluate regional differences. We find that the gross domestic product (GDP) share of the tertiary sector shows its greatest impact on reducing energy consumption in the eastern region, a decline in heavy industry production would reduce energy demand more in the central region, and improvement in industrial electricity efficiency would also help reduce energy consumption the most in eastern China. We also forecast energy consumption in China will reach 4.8–4.9 billion tonnes of coal equivalent (tce) in 2020 and further grow to 5.0–5.4 billion tce in 2030.

scholarly journals Industrial Sector’s Energy Demand Projections and Analysis of Nepal for Sustainable National Energy Planning Process of the Country

2016 ◽  
Vol 11 (1) ◽  
pp. 50-66 ◽  
Author(s):  
Nawraj Bhattarai ◽  
Iswor Bajracharya
Keyword(s):  
Energy Demand ◽  
Planning Process ◽  
High Growth ◽  
Industrial Sector ◽  
Wood Products ◽  
Energy Planning ◽  
Reference Scenario ◽  
Demand Model ◽  
To Come ◽  
End Use

The reliable future energy demand projection is an essential requirement for planning and formulating the policy to provide sustainable energy supply in the country. The purpose of this study is to project the sectoral energy demand up to 2030 under different anticipated growth scenarios of national economy. To project future energy demand, the end use industrial sector energy demand model based on Long – range Energy Alternative Planning (LEAP) framework has been formulated with four GDP growth scenarios namely business as usual (BA), low growth (LG), medium growth (MG) and high growth (HG) respectively. Further, the study has illustrated that among the industrial sub-sectors, the energy demand of food beverage and tobacco, textile & leather, chemical rubber & plastics, mechanical engineering & metallurgy and wood products & papers will be increased while the electrical engineering and products subsector will be decreased. Among the anticipated scenarios, the BA scenario has been selected as a reference scenario for policy measures. In the policy scenario, it has been found that the total sectoral energy demand and electricity demand can be reduced from 1.78 and 2.42 times of the base year demand in BA scenario to 1.53 and 2.24 times of the base year demand in 2030 respectively. The projected sectoral energy demand along with demanding fuels will support the sustainable national energy planning process of the country for days to come. Journal of the Institute of Engineering, 2015, 11(1): 50-66

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