Economic Indicators Improvement due to the Introduction of Energy-Efficient Technologies

The paper describes issues concerning energy efficiency improving in the Russian power engineering economics. The energy efficiency applicability, the technical and the economic energy efficiency potential, the government energy efficiency tools are substantiated. The results of energy efficiency program implementation are presented.

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Barriers to the Adoption of Energy Efficiency Measures in Mostaganem, Algeria

Journal of Construction in Developing Countries ◽

10.21315/jcdc2020.25.2.2 ◽

2020 ◽

Vol 25 (2) ◽

pp. 39-61

Author(s):

Mohammed Seddiki ◽

Amar Bennadji ◽

Mohamed Tehami

Keyword(s):

Energy Efficiency ◽

Energy Efficient ◽

Principal Component ◽

Single Family ◽

Total Energy Consumption ◽

Financial Barriers ◽

Residential Sector ◽

Energy Efficiency Measures ◽

Efficiency Measures ◽

The Government

The residential sector of Algeria consumes 29% of the total energy consumption. In order to reduce and address this consumption along with the challenges of climate change, the Algerian public policy considers energy efficiency investment measures (EEIMs) in the residential sector as a key factor. However, despite the recommendations and incitement measures from the government, the adoption of EEIMs of Algerian homeowners is too low. In 2018, EEIMs have been implemented in 4,000 houses. This number represents only 4% of the government's target which is the implementation of EEIMs in 100,000 houses per year. The present article, accordingly, attempts to explore the barriers to the adoption of EEIMs. To this effect, a questionnaire survey with 150 randomly selected Algerian single-family homeowners in Mostaganem area was used for the study. It was found that the five greatest barriers to the adoption of EEIMs were: (1) the lack of subsidies and rebates on energy efficient equipment, (2) the high initial prices of energy efficient equipment, (3) the lack of techniques and tools for the estimation of saved energy, (4) the unwillingness to borrow money and (5) the difficulty of identifying, procuring, installing, operating and maintaining energy efficiency measures. The principal component analysis categorised 16 barriers around four components: (1) "Financial" barriers, (2) "Technological" barriers, (3) "Lack of time and knowledge" barriers and (4) "Attitude towards energy efficiency improvements" barriers. Finally, the multivariate analysis of variance (MANOVA) analysis has shown that the perception of barriers to the adoption of EEIMs also differs in accordance with certain personal characteristics of the homeowner.

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Application of AHP and GRA methods in energy efficiency potential’s assessment of envelopes from natural materials

Theory and Building Practice ◽

10.23939/jtbp2020.02.048 ◽

2020 ◽

Vol 2020 (2) ◽

pp. 48-62

Author(s):

Yuriy Biks ◽

◽

Georgiy Ratushnyak ◽

Olga Ratushnyak ◽

Pavlo Ryapolov ◽

...

Keyword(s):

Energy Efficiency ◽

Energy Efficient ◽

Building Materials ◽

Influence Factors ◽

Thermal Inertia ◽

Pairwise Comparison ◽

Weighting Method ◽

Total Thermal Resistance ◽

Energy Efficiency Potential ◽

Wall Assembly

The best choice of energy efficient envelope from variety of available materials is still the challenge. Therefore, the attempt of thermal performance multi-criteria evaluation of some building materials of natural origin for energy-efficient envelopes is conducted in present paper. Such types of walls from natural energy-efficient materials are considered in comparison assessment: hempcrete, adobe, strawbale panel, earthbag, cordwood, SIP (plywood+ecofiber), hempcrete+straw and energy efficient block. The influence of thermal inertia time, internal areal heat capacity, as well dimensionless index of thermal inertia D, the total thermal resistance of the walls Rtot-value, mass of the wall assembly and its cost have been taken into consideration as important influence factors. The multi-criteria numerical assessment of envelope’s energy efficiency potential was performed by two popular methods – Analytic Hierarchy Process (AHP) as the subjective weighting method and Grey Relation Analysis (GRA) as the objective weighting method. Both of methods allow to arrange the alternatives and could be applied as decision support tools in decision making (DM) process of choosing the best alternative in terms of multi-criteria assessment. For more objective analysis, by taking into account the variety of physical and physical-mechanical parameters of the wall assembly material, the concept of generalized index of the envelope energy efficiency potential is proposed. Conducted research has shown that the best envelope type in terms of of generalized index of energy efficiency potential has the hempcrete wall and hemcrete+straw wall, almost three times smaller has the wall of the earthbags. The walls from adobe, cordwood and strawbale panels have practically the equal value of generalized index of energy efficiency potential. It could be observed that AHP method shown more inhomogeneous results, than GRA. The possible reason for that is the difference in evaluation attitude in techniques - AHP is considered as the subjective method with pairwise comparison matrixes, while GRA is objective method of comparison.

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PRE-CONDITIONS FOR THE FORMATION OF AN ENERGY CONSERVATION POLICY IN DEVELOPMENT OF ENTERPRISES OF THE MECHANICAL ENGINEERING COMPLEX

Economic Analysis ◽

10.35774/econa2019.02.062 ◽

2019 ◽

pp. 62-72

Author(s):

Oksana Mykoliuk ◽

Valentyna Bobrovnyk

Keyword(s):

Energy Efficiency ◽

Energy Conservation ◽

Energy Security ◽

Energy Efficient ◽

Mechanical Engineering ◽

Scientific Paper ◽

Conservation Policy ◽

The State ◽

Necessary Condition ◽

The Government

Introduction. Nowadays, the formation of a policy of the energy-efficient economic activity is a necessary condition for revival of the national production, growth of innovative attractiveness, sustainable development, as well as achieving the European standards for energy security. Development of mechanical engineering based on implementing the energy conservation policy and using the energy-efficient policy will benefit domestic enterprises under a competitive environment. Purpose. The article’s purpose is to analyse the state of domestic mechanical engineering, as well as to reveal opportunities and prospects for enhancing energy efficiency and ensuring energy security. Methodology. The methodological basis of the scientific paper encompasses fundamental provisions of economics, scientific cognition, the general scientific principles, and historical and system approaches to studying a matter of the formation and development of energy conservation and energy efficiency in the industry of mechanical engineering. Results. The article examines the state and indicators of development of the industry of mechanical engineering, as well as prospects of implementing the energy conservation policy. The authors have analysed directions of investment support of enterprises. The authors have determined factors conducing to activation of the government activity for ensuring energy security of enterprises of the industry of mechanical engineering. The authors have proven that the latter is a foundation of the economic potential of the country, since the state of socio-economic development of Ukraine depends on a level of efficiency being inherent to the activity of enterprises operating in this industry.

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Energy development in Nigeria and the need for strategic energy efficiency practice scheme for the residential building sector

Management of Environmental Quality An International Journal ◽

10.1108/meq-10-2013-0117 ◽

2015 ◽

Vol 26 (1) ◽

pp. 21-36 ◽

Cited By ~ 5

Author(s):

Ibrahim Udale Hussaini ◽

Noor Hanita Abdul Majid

Keyword(s):

Energy Efficiency ◽

Energy Efficient ◽

Energy Demand ◽

Residential Building ◽

Strategic Plan ◽

Energy Development ◽

Building Sector ◽

Content Type ◽

Improve Energy Efficiency ◽

The Government

Purpose – The purpose of this paper is to seek ways to improve energy efficiency in the residential building sector of Nigeria. This is necessary so as to promote a wider scope of energy efficiency practice in order to reduce energy demand on the central power supply of the nation and as well-attain reasonable level of energy security. Design/methodology/approach – However, the objective of the study is to propose a strategic plan (scheme) of energy efficiency practice for the housing sector of the Nigerian economy. To accomplish this task, a review of the main issues of energy efficiency; the current energy situation in Nigeria; and the challenges to implementing energy efficiency in the country was undertaken. Findings – Finally, remedial measures to achieving energy efficiency in the Nigerian households were proffered by the provision of a “strategic scheme” to be accomplished by the government and the housing stakeholders. Research limitations/implications – It is evident that a strategic plan or framework must be put in place in order to overcome the challenges of energy efficiency in the residential building sector. And this framework is to adequately address the issues of design practice, the efficiency of appliances in use and the housing occupant behaviour. Practical implications – The main goal is the attainment of energy-efficient households in Nigeria through the application of EE practice strategies. Originality/value – The study highlights on the energy development level of the country. It has also identified the numerous barriers as well as the principal actors to achieving energy-efficient households in Nigeria. After all, the suggested “plan of action” as provided in the scheme is to serve as a benchmark and reference point to the government, the housing stakeholders as well as the housing occupant for the attainment of energy efficiency.

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Analysis Criteria for Choosing Energy Efficient High-Quality Light Sources and Luminaires

Light & Engineering ◽

10.33383/2017-007 ◽

2018 ◽

pp. 113-119

Author(s):

Gennady Ya. Vagin ◽

Eugene B. Solntsev ◽

Oleg Yu. Malafeev

Keyword(s):

Energy Efficiency ◽

Energy Efficient ◽

National Standards ◽

Light Sources ◽

The European Union ◽

High Quality ◽

Eu Directive ◽

The World ◽

A New Technique ◽

Energy Labelling

The article analyses critera applying to the choice of energy efficient high quality light sources and luminaires, which are used in Russian domestic and international practice. It is found that national standards GOST P 54993–2012 and GOST P 54992– 2012 contain outdated criteria for determining indices and classes of energy efficiency of light sources and luminaires. They are taken from the 1998 EU Directive #98/11/EU “Electric lamps”, in which LED light sources and discharge lamps of high intensity were not included. A new Regulation of the European Union #874/2012/EU on energy labelling of electric lamps and luminaires, in which these light sources are taken into consideration, contains a new technique of determining classes of energy efficiency and new, higher classes are added. The article has carried out a comparison of calculations of the energy efficiency classes in accordance with GOST P 54993 and with Regulation #874/2012/EU, and it is found out that a calculation using GOST P 54993 gives underrated energy efficiency classes. This can lead to interdiction of export for certain light sources and luminaires, can discredit Russian domestic manufacturer light sources and does not correspond to the rules of the World Trade Organization (WTO).

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Performance Analysis of TBC-ACO Routing Protocol with Existing Routing Protocols of Wireless Sensor Networks

International Journal of Advanced Research in Computer Science and Software Engineering ◽

10.23956/ijarcsse.v7i8.46 ◽

2017 ◽

Vol 7 (8) ◽

pp. 169

Author(s):

A. Radhika ◽

D. Haritha

Keyword(s):

Energy Efficiency ◽

Wireless Sensor Networks ◽

Sensor Networks ◽

Swarm Intelligence ◽

Routing Protocol ◽

Routing Protocols ◽

Energy Efficient ◽

Sensor Nodes ◽

Wireless Sensor ◽

Congestion Aware

Wireless Sensor Networks, have witnessed significant amount of improvement in research across various areas like Routing, Security, Localization, Deployment and above all Energy Efficiency. Congestion is a problem of importance in resource constrained Wireless Sensor Networks, especially for large networks, where the traffic loads exceed the available capacity of the resources . Sensor nodes are prone to failure and the misbehaviour of these faulty nodes creates further congestion. The resulting effect is a degradation in network performance, additional computation and increased energy consumption, which in turn decreases network lifetime. Hence, the data packet routing algorithm should consider congestion as one of the parameters, in addition to the role of the faulty nodes and not merely energy efficient protocols .Nowadays, the main central point of attraction is the concept of Swarm Intelligence based techniques integration in WSN. Swarm Intelligence based Computational Swarm Intelligence Techniques have improvised WSN in terms of efficiency, Performance, robustness and scalability. The main objective of this research paper is to propose congestion aware , energy efficient, routing approach that utilizes Ant Colony Optimization, in which faulty nodes are isolated by means of the concept of trust further we compare the performance of various existing routing protocols like AODV, DSDV and DSR routing protocols, ACO Based Routing Protocol with Trust Based Congestion aware ACO Based Routing in terms of End to End Delay, Packet Delivery Rate, Routing Overhead, Throughput and Energy Efficiency. Simulation based results and data analysis shows that overall TBC-ACO is 150% more efficient in terms of overall performance as compared to other existing routing protocols for Wireless Sensor Networks.

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IMPROVEMENT OF ENERGY SAVING AND ENERGY EFFICIENCY IN BUILDINGS AND RESIDENTIAL HOUSES IN THE KYRGYZ REPUBLIC

Science and Innovative Technologies ◽

10.33942/sit002 ◽

2019 ◽

pp. 3-17

Author(s):

Turatbek Kasymov

Keyword(s):

Energy Efficiency ◽

Energy Saving ◽

Energy System ◽

Environmental Indicators ◽

Kyrgyz Republic ◽

Technical Standards ◽

Insulating Materials ◽

Increase Energy Efficiency ◽

State Construction ◽

The Government

This article reviews energy consumption in the Kyrgyz Republic economy, environmental indicators and strategies to further develop the national fuel and energy system to ensure energy efficiency and energy saving. An existing situation in energy efficiency of buildings in the country is described. Secondary legislation and by-laws approved by the Government of the Kyrgyz Republic as well as several technical standards, norms, methods and guidelines approved by the order of the State Construction Agency of the Kyrgyz Republic are presented. Applying modern insulating materials are suggested as possible solutions to increase energy efficiency and energy saving. The advantages of EPS-beton in comparison with other thermal insulation materials are discussed and foreign experience of use of EPS-beton products in increasing energy efficiency of buildings is presented.

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MANUFACTURING OF ENERGY EFFICIENT SOLAR PANELS

Высокие технологии и инновации в науке: сборник избранных статей Международной научной конференции (Санкт-Петербург, Сентябрь 2020) ◽

10.37539/vt187.2020.17.18.006 ◽

2020 ◽

Author(s):

Андрей Дмитриевич Бухтеев ◽

Виктория Буянтуевна Бальжиева ◽

Анна Романовна Тарасова ◽

Фидан Гасанова ◽

Светлана Викторовна Агасиева

Keyword(s):

Energy Efficiency ◽

Solar Cells ◽

Energy Efficient ◽

Solar Panels

В данном обзоре приведены проблемы при использовании солнечных элементов и существующие решения этих проблем по повышению энергоэффективности фотоэлементов. Также сравнивается КПД этих солнечных элементов и рассматриваются их особенности. Одним из самых эффективных способов стало применение нанотехнологий. This review presents the problems of using solar cells and existing solutions to these problems to improve the energy efficiency of solar cells. The efficiency of these solar cells is also compared and their features are considered. One of the most effective methods was the use of nanotechnology.

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Energy efficient biomorphic pulse information coding in electronic neurons for the entrance unit of the neuroprocessor

Tyumen State University Herald Physical and Mathematical Modeling Oil Gas Energy ◽

10.21684/2411-7978-2019-5-3-186-212 ◽

2019 ◽

Vol 5 (3) ◽

pp. 186-212 ◽

Cited By ~ 1

Author(s):

Alexander D. Pisarev

Keyword(s):

Neural Networks ◽

Energy Efficiency ◽

Energy Efficient ◽

Information Transfer ◽

Biological Systems ◽

Technological Parameters ◽

Input Unit ◽

Efficient Operation ◽

Electric Circuits ◽

Electronic Neuron

This article studies the implementation of some well-known principles of information work of biological systems in the input unit of the neuroprocessor, including spike coding of information used in models of neural networks of the latest generation.<br> The development of modern neural network IT gives rise to a number of urgent tasks at the junction of several scientific disciplines. One of them is to create a hardware platform — a neuroprocessor for energy-efficient operation of neural networks. Recently, the development of nanotechnology of the main units of the neuroprocessor relies on combined memristor super-large logical and storage matrices. The matrix topology is built on the principle of maximum integration of programmable links between nodes. This article describes a method for implementing biomorphic neural functionality based on programmable links of a highly integrated 3D logic matrix.<br> This paper focuses on the problem of achieving energy efficiency of the hardware used to model neural networks. The main part analyzes the known facts of the principles of information transfer and processing in biological systems from the point of view of their implementation in the input unit of the neuroprocessor. The author deals with the scheme of an electronic neuron implemented based on elements of a 3D logical matrix. A pulsed method of encoding input information is presented, which most realistically reflects the principle of operation of a sensory biological neural system. The model of an electronic neuron for selecting ranges of technological parameters in a real 3D logic matrix scheme is analyzed. The implementation of disjunctively normal forms is shown, using the logic function in the input unit of a neuroprocessor as an example. The results of modeling fragments of electric circuits with memristors of a 3D logical matrix in programming mode are presented.<br> The author concludes that biomorphic pulse coding of standard digital signals allows achieving a high degree of energy efficiency of the logic elements of the neuroprocessor by reducing the number of valve operations. Energy efficiency makes it possible to overcome the thermal limitation of the scalable technology of three-dimensional layout of elements in memristor crossbars.

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