Energy Efficiency and Sustainable Construction

2022 ◽  
pp. 17-32
Author(s):  
José Guadix Martín ◽  
Milica Lilic ◽  
Marina Rosales Martínez
Keyword(s):  
Energy Efficiency ◽  
Sustainable Construction

Metamaterial Window Glass for Adaptable Energy Efficiency

2013 ◽  
Author(s):  
Alex Heltzel ◽  
Tyler Mann ◽  
John R. Howell
Keyword(s):  
Energy Efficiency ◽  
Computational Analysis ◽  
Near Infrared ◽  
Window Glass ◽  
Sustainable Construction ◽  
Nanometer Scale ◽  
Glass Technology ◽  
Optical Wavelengths ◽  
Window Design ◽  
Difference Time

A computational analysis of a metamaterial (MTM) window design is presented for the purpose of increasing the energy efficiency of buildings in seasonal or cold climates. Commercial low-emissivity windows use nanometer-scale Ag films to reflect infrared energy, while retaining most transmission of optical wavelengths for functionality. An opportunity exists to further increase efficiency through a variable emissivity implementation of Ag thin-film structures. 3-D finite-difference time-domain simulations predict nonlinear absorption of near-infrared energy, providing the means to capture a substantial portion of solar energy during cold periods. The effect of various configuration parameters is quantified, with prediction of the net sustainability advantage. MTM window glass technology can be realized as a modification to current, commercial low-emissivity windows through the application of nanomanufactured films, creating the opportunity for both new and after-market sustainable construction.

scholarly journals Ecological and energy efficiency of insulating systems

2019 ◽  
Vol 135 ◽  
pp. 03070
Author(s):  
Aleksey Zhukov ◽  
Andrey Medvedev ◽  
, Alexey Poserenin ◽  
Boris Efimov
Keyword(s):  
Energy Efficiency ◽  
Flame Retardants ◽  
Cold Water ◽  
Sustainable Construction ◽  
Environmentally Sustainable ◽  
Plastic Materials ◽  
Harmful Emissions ◽  
Insulation Systems ◽  
Moisture Condensation ◽  
Glue Method

The article, on the example of pipeline insulation systems, outlines the fundamentals of the concept of environmentally sustainable construction, including requirements for materials, constructional systems in which these materials are used, engineering systems and work technologies. Insulation based on polyethylene foam technology of its installation meets the requirements of EcoMaterial Basis or EcoMaterial Green. Polyethylene is absolutely safe for humans and its base is polyethylene, which used in the food industry (packaging or boxing) and in medicine (prosthetics). A specific feature of polyethylene foam, like most types of foamed (gas-filled) plastic materials, is combustibility, expressed depending on the consumption and effectiveness of flame retardants, to one degree or another. During operation in the temperature range from -60 to +90 °C, the properties of materials are stable and no harmful emissions occur. The installation of the insulating sheath fixed by an glue method and is not associated with processes that are dangerous for humans and harmful to the environment. The article presents the main provisions of methods for calculating insulation systems based on polyethylene by measure of energy efficiency, which is defining, including the environmental assessment of insulation systems. The optimum thickness of polyethylene foam has been determined, as well as the recommended insulation thicknesses to ensure a given (safe for humans) temperature; to prevent moisture condensation on the surface of the insulating layer. An calculated time has been established during which thermal insulation prevents cold water from freezing when at an emergency stop of its movement in pipelines in the winter.

Energy efficiency and sustainable construction

2021 ◽  
Author(s):  
Javier Cárcel Carrasco ◽  
Elisa Peñalvo López ◽  
Clara Andrada Monrós ◽  
Laura Molina Cañamero
Keyword(s):  
Energy Efficiency ◽  
Sustainable Construction

scholarly journals SUSTENTABILIDADE NA CONSTRUÇÃO DO INSTITUTO BALEIA JUBARTE: TÉCNICAS DE BIOCONSTRUÇÃO

2018 ◽  
Vol 10 (Especial) ◽  
pp. 71-79
Author(s):  
Bruna da Silva Batista
Keyword(s):  
Energy Efficiency ◽  
Environmental Impact ◽  
Qualitative Method ◽  
Quality Standards ◽  
Consumption Patterns ◽  
Energy Reduction ◽  
Sustainable Construction ◽  
Insulation Resistance ◽  
Innovative Methods ◽  
Acoustic Insulation

The Bioconstruction was the chosen alternative to develop ‘Baleia Jubarte Institute’ project, guaranteeing a sustainable construction in balance with the environment. The constructive techniques of bioconstruction generate energy reduction, transportation, environmental impact and costs. The work aims to present the constructive techniques used, incorporating traditional methods allied to innovative methods in a rational way. The Bioconstruction is able to ensure quality standards for built ecosystems, meeting the demands of human activities with reduced environmental impacts. The survey of the sustainable measures employed in the project implies the adoption of new conscious consumption principles and consumption patterns. With a methodology carried out using the qualitative method, the sustainable actions applied through bioconstruction as a guiding the mechanism are presented. The construction is a milestone that demonstrates the possibility of allying sustainable techniques and obtains satisfactory results of energy efficiency, thermal and acoustic insulation, resistance, quality, durability, sustainability and pleasant aesthetic effect.

scholarly journals Life Cycle Carbon Emission Analyzing of Rural Residential Energy Efficiency Retrofit-A Case Study of Gansu province

2021 ◽  
Vol 329 ◽  
pp. 01063
Author(s):  
Qiangnian Li ◽  
Tongze Han ◽  
Changlin Niu ◽  
Ping Liu
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Carbon Emissions ◽  
Gansu Province ◽  
Sustainable Construction ◽  
Residential Energy ◽  
Energy Retrofit ◽  
Construction Methods ◽  
Residential Energy Efficiency ◽  
Whole Life Cycle

Objective To study and analyze the life-cycle carbon emissions of existing rural residential energy retrofit projects to provide theoretical and data support for local rural green development and sustainable construction. Methods Life cycle analysis (LCA) was used to analyze and compare the life cycle carbon emissions (LCE) of a rural residential envelope energy efficiency retrofitting project in central Gansu. Results It was found that rural dwellings have a very high potential for energy efficiency retrofitting, and the contribution of retrofitted homes to CO2 emissions reduction can reach more than 30% over the whole life cycle. Secondly, during the retrofitting process, neglected in previous studies, carbon emissions account for about a quarter of the LCE. It is concluded that introducing LCA into evaluating rural residential energy retrofit projects' energy-saving and emission reduction benefits is more scientific, reasonable, and necessary.

Drying and heating of scrap metal at steelmaking: industrial safety, economics, ecology

2020 ◽  
Vol 76 (12) ◽  
pp. 1353-1258
Author(s):  
V. A. Spirin ◽  
V. E. Nikol’skii ◽  
D. V. Vokhmintsev ◽  
A. A. Moiseev ◽  
P. G. Smirnov ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
High Efficiency ◽  
Steel Production ◽  
Scrap Metal ◽  
Industrial Safety ◽  
Technical Solution ◽  
Metal Charge ◽  
Basic Task ◽  
Scrap Heating ◽  
Winter Time

At steel production based on scrap metal utilization, the scrap heating before charging into a melting facility is an important way of energy efficiency increase and ecological parameters improving. In winter time scrap metal charging with ice inclusions into a metal melt can result in a considerable damage of equipment and even accidents. Therefore, scrap preliminary drying is necessary to provide industrial safety. It was shown, that in countries with warm and low-snow climate with no risk of scrap metal icing up during its transportation and storing in the open air, the basic task being solved at the scrap drying is an increase of energy efficiency of steelmaking. InRussiathe scrap metal drying first of all provides the safety of the process and next - energy saving. Existing technologies of scrap metal drying and heating considered, as well as advantages and drawbacks of technical solutions used at Russian steel plants. In winter time during scrap metal heating at conveyers (Consteel process) hot gases penetrate not effectively into its mass, the heat is not enough for evaporation of wetness in the metal charge. At scrap heating by the furnace gases, a problem of dioxines emissions elimination arises. Application of shaft heaters results in high efficiency of scrap heating. However, under conditions of Russian winter the upper scrap layers are not always heated higher 0 °С and after getting into a furnace bath the upper scrap layers cause periodical vapor explosions. The shaft heaters create optimal conditions for dioxines formation, which emit into atmosphere. It was shown, that accounting Russian economic and nature conditions, the metal charge drying and heating in modified charging buckets by the heat of burnt natural gas or other additional fuel is optimal. The proposed technical solution enables to burnt off organic impurities ecologically safely, to melt down ice, to evaporate the wetness in the scrap as well as to heat the charge as enough as the charging logistics enables it. The method was implemented at several Russian steel plants. Technical and economical indices of scrap metal drying in buckets under conditions of EAF-based shop, containing two furnaces ДСП-100, presented.

Perspectives and Regulation of the Russian Market for Project-based Transactions under the Kyoto Protocol

2008 ◽  
pp. 108-125
Author(s):  
K. Zavodov
Keyword(s):  
Energy Efficiency ◽  
Market Mechanism ◽  
Point Of View ◽  
Market Regulation ◽  
Foreign Investments ◽  
Russian Market ◽  
Increase Energy Efficiency ◽  
New Form ◽  
Contract Structure ◽  
Carbon Fund

Project-based transactions (PBTs) are a market mechanism of attracting foreign investments in order to abate greenhouse gas emissions and increase energy efficiency of the country’s enterprises. The article provides a classification and analyzes advantages and drawbacks of PBTs from the point of view of a host country. The main trends and factors determining the dynamics of the PBT market are described. Given that Russia currently lags behind the leaders of the PBT market, an incorporation of a state carbon fund is put forward with an aim of channelling PBTs through it. This paper proposes a form of PBT market regulation by incorporating an option mechanism into the contract structure of a transaction. A comparison of the new form of regulation with the tools that are currently in use in Russia and other countries demonstrates its greater economic efficiency under uncertainty.

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