scholarly journals Energy efficiency in civil engineering: analyzing world experience

2018 ◽  
Vol 212 ◽  
pp. 02009
Author(s):  
Tatiana Bezdenezhnukh ◽  
Andrey Kuritsyn ◽  
Irina Gimelshtein

There are consistent trends in the development of energy-saving technologies in civil engineering in almost all countries of the world. The article considers the main approaches to ensuring energy efficiency in in civil engineering, analyzes the standards of energy-efficient construction in the world in general and in Russia in particular, and gives some recommendations on increasing energy efficiency in engineering.

2021 ◽  
Vol 274 ◽  
pp. 10011
Author(s):  
Evgeniya Ilina ◽  
Diana Gafurova ◽  
Andrey Puris

The article discusses the energy-efficient repair and construction of apartment buildings, as well as the dynamics of changes in the energy efficiency class of apartment buildings in the Republic of Tatarstan. The object of the study is directly the energy efficiency of apartment buildings, as well as its increase in the course of major repairs and construction of apartment buildings. The article also discusses measures to improve the energy efficiency of apartment blocks. The purpose of the study is to analyze the state of management of energy efficient construction and repair of apartment building, mainly using the example of the Republic of Tatarstan.


Author(s):  
N. A. Starynina ◽  
◽  
E. M. Korshunova ◽  

The article presents the analysis results of formation and development of the construction of energy-saving buildings in the world and domestic practice and determines the work stages. The trends in the construction of energy-saving buildings in Russia are identified. The necessary conditions for the development of efficient construction of energy-saving buildings are specified. The direction of improving the methodology for assessing the effectiveness of investment projects of energy-saving buildings is determined.


2018 ◽  
Vol 7 (3.2) ◽  
pp. 46
Author(s):  
Alina Bohoslovska ◽  
Anna Komelina ◽  
Svitlana Shcherbinina

Ensuring the energy efficiency functioning of housing and communal services and increasing the energy efficiency of Ukraine's housing stock, which is one of the largest consumers of heat energy, requires the search for potential opportunities for managing energy efficiency of buildings. Integration into the world economy obliges Ukraine to adhere to international economic principles, one of which is the growth of energy efficiency.The article examines the experience of the world countries in the field of energy efficiency of buildings on the basis of sustainable building concept.  The methodology of calculating the integral rating point of the regions of the country based on their energy saving potential is developed. It can be used to evaluate the potential of energy efficiency management of buildings in Ukraine. As a result of the calculations of the integrated estimation of the energy saving potential, an appropriate ranking and grouping of the regions of Ukraine has been carried out.Improvement of the organizational and technical potential of providing energy-efficient functioning of the housing and communal services of Ukraine and the introduction of effective mechanisms for its modernization on the basis of the sustainable building concept should ensure an increase in the efficiency of energy efficiency management of buildings. 


2018 ◽  
pp. 113-119
Author(s):  
Gennady Ya. Vagin ◽  
Eugene B. Solntsev ◽  
Oleg Yu. Malafeev

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).


Author(s):  
Vasyl Zelenko ◽  
Yaryna Ferenchak ◽  
Nataliya Zelenko

The paper outlines major preconditions of development of energy efficiency programs and the process of their introduction from the perspective of sustainable development concept. Energy saving measures of European Union are examined, its experience and results, like green books and Thermie programs, etc are analyzed. The paper also specifies relevant activities and responsibilities undertaken by Member States by 2030 and the rates planned to be achieved. The experience of neighboring Poland in energy efficiency promotion is analyzed, as far as the country most closely resembles Ukraine by the initial rates in 1990. We calculated conditional losses of Ukraine in 2017 as the gap between the rates of energy efficiency of Ukraine and Poland (similarity of climate conditions and the state of housing funds allowed us to assume that the comparison will be the most correct regarding Ukraine). The results of calculations make us conclude that the funds are used most efficiently if the money designated, for example, for subsidizing of population are directed at strengthening of energy efficiency (at least up to the level of neighboring country). It will result in saving of about 40 billion. This is the amount defined as Ukrainian capacity in terms of improvement of energy saving and possible results of its realization. The paper determines the stage Ukraine is at in introduction of energy efficiency measures and programs: “warm loans” program; conditions regarding energy saving in Ukraine enshrined in the EU-Ukraine Association Agreement; creation of legal basis, namely the Law of Ukraine “On Energy Efficiency Fund” as of 8 June 2017. The role of newly created Energy Efficiency Fund is analyzed. Special attention is paid to the fact that energy efficient construction is one of international liabilities undertaken by Ukraine. The presence of The Active House Alliance at Ukrainian market is an important achievement in this sphere as it is the non-profit association aiming at creation of housing concept corresponding to the sustainable development principles.


The progressive development of the economy of the Republic of Kazakhstan is impossible without solving the issues of increasing energy efficiency and energy conservation. These issues are very relevant in the construction sector of Kazakhstan. Housing facilities, on average, consume 2-3 times more heat per square meter, than buildings in Europe. However, in Kazakhstan until now there is no methodology for determining the energy efficiency of buildings and structures that meets modern requirements. The methodology discussed in this article is harmonized with EU requirements and establishes a method for calculating the annual energy consumption of buildings for heating, hot water, ventilation and air conditioning, taking into account auxiliary energy for the operation of these systems, and is intended for use in the design of new construction, reconstruction (modernization) residential and public buildings, as well as operated buildings and structures.


2014 ◽  
Vol 70 (7) ◽  
Author(s):  
S. Balubaid ◽  
R. M. Zin ◽  
M. Z. Abd Majid ◽  
J. S. Hassan ◽  
Samihah Mardzuki

Building construction systems that come in different forms and types need to be properly selected before being use, this may have different impact on overall embodied energy of the building construction. Hence, in order to achieve and maximize the construction contribution, the designer plays a big role in choosing the appropriate energy efficient construction. The designers need to be equipped with the right knowledge and tool which gathers a possible range of embodied energy indicators in order to select energy efficient construction. This paper aims at confirming the Malaysian common construction systems and compares it with the historical literature while it also explore energy efficiency in building construction. It is based on the common construction knowledge and also on the published literatures through a critical review of the possible range of embodied energy indicators and construction systems. The study demonstrated and confirmed that Malaysian common building construction systems can be categorized into six groups: Structural frame, Slab, Internal wall, External Wall, Roof and Staircase. This finding is highly significant for the future design in the area of energy efficiency.


Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4112
Author(s):  
Ayesha Akter Lata ◽  
Moonsoo Kang

Wireless sensor networks (WSNs) have been used for environmental monitoring and reporting for many decades. Energy consumption is a significant research topic because wireless sensor nodes are battery-operated to be highly energy-constrained. Several strategies have been introduced in routing and MAC (Medium Access Control) layer protocols to facilitate energy saving. At the routing layer, an energy-efficient routing protocol, known as opportunistic routing (OR), has been designed to improve efficiency. OR achieves energy efficiency via load-balancing, which forwards packets along multiple routes over WSNs. At the MAC layer, an energy-efficient MAC protocol known as the asynchronous duty-cycled MAC (ADCM) protocol achieves energy saving by turning on and off a sensor node’s transmitter and receiver to eliminate unnecessary energy wastage. These protocols each have their own advantages and disadvantages. OR achieves energy efficiency at the routing layer but it raises an issue at the MAC layer. ADCM achieves energy efficiency at the MAC layer, but it hinders the packet forwarding efficiency of the OR. To attain better energy efficiency, a combination of these two ideas led to the development of OR with asynchronous duty-cycled MAC (OR-ADCM). However, even with better energy efficiency, limitations still exist in combining load-balancing and duty-cycling due to conflicts in the inherent properties of OR and ADCM. In this paper, we present a survey of the evolution of OR-ADCM over WSNs to help the reader better understand and appreciate the details of this tradeoff, which we hope will lead to the development of better protocol designs.


2021 ◽  
Vol 13 (4) ◽  
pp. 1923
Author(s):  
Zhuangai Li ◽  
Xia Cao

With incomplete information about the potential benefits and costs of energy-using durables, households may be unwilling to invest in products that are more energy-efficient but also more expensive in purchase decisions. To deal with this problem, labeling policy has been developed to guide customers’ energy consumption decisions by providing understandable information to evaluate the energy efficiency of products. Over the last 20 years, China has implemented a series of mandatory and voluntary energy labeling and incentive policies to reduce energy use and improve the energy efficiency of durable goods in dwellings. This study has employed empirical survey data from the Chinese General Social Survey to study the implementation effectiveness of these policies and explore demographic factors behind consumer investments in energy-saving durables by using the logistic regression model. Statistical results show that energy efficiency labeling, incentive programs, education levels, and regional differences of customers appear to be strong predictors for investing in energy-efficient air conditioners and washing machines. House size is a decisive factor in driving consumers to choose energy-saving air conditioners. In light of the above results, the study suggests improved policy for motivating consumers to purchase energy-efficient appliances in dwellings.


2019 ◽  
Vol 110 ◽  
pp. 02125 ◽  
Author(s):  
Natalya Trukhina ◽  
Valery Barinov ◽  
Yana Andryunina ◽  
Andrey Panenkov ◽  
Nikolay Voytolovskiy

Within the framework of the concept of sustainable development, issues of energy efficiency, environmental safety, minimization of anthropogenic impact on the environment are of particular relevance. In construction, these theses are projected onto the segment of energy-efficient, “green” construction. Nowadays, the development of energy-efficient construction in Russia is progressing at a slow pace, and this is primarily due to the lack of an integrated energy management system, environmental certification of construction products, and institutional features of the real estate market. The authors systematized the methods of improving energy efficiency and greening of construction regarding the types of real estate, analyzed the main global and Russian environmental certification systems in construction, identified the features, advantages and disadvantages of each system, substantiated the need to ensure the generally accepted Russian certification system. The problem of enhancing energy-efficient construction is also interconnected with the need to increase the level of innovation in construction, which is substantiated by the authors in the paper. The authors substantiated the need to change the criteria for monitoring investment projects, taking into account the optimization of energy efficiency and environmental performance of real estate.


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