Designing energy efficiency program for household to achieve energy sustainability

2013 ◽  
Author(s):  
Hasrini Sari ◽  
Indryati Sunaryo ◽  
Satira Imannisa
Keyword(s):  
Energy Efficiency ◽  
Energy Sustainability

scholarly journals Energy Assessment of Pastoral Dairy Goat Husbandry from an Agroecological Economics Perspective. A Case Study in Andalusia (Spain)

2018 ◽  
Vol 10 (8) ◽  
pp. 2838 ◽  
Author(s):  
David Pérez-Neira ◽  
Marta Soler-Montiel ◽  
Rosario Gutiérrez-Peña ◽  
Yolanda Mena-Guerrero
Keyword(s):  
Energy Efficiency ◽  
Energy Cost ◽  
Sustainability Indicators ◽  
Breeding Systems ◽  
Energy Output ◽  
Dairy Goat ◽  
Environmental Benefit ◽  
Energy Sustainability ◽  
Livestock Farming ◽  
New Energy

This paper presents a methodological proposal of new energy sustainability indicators according to a novel accounting that follows agroecological and ecological economics criteria. Energy output is reformulated to include manure and thus consider the contribution to fertilization made by pastoral livestock farming to agroecosystems. Energy inputs calculations include the grazing resources. These new definitions and calculations allow for new formulations of the energy return on investment (EROI) as measures of the energy efficiency of livestock farming systems (final EROI and food/feed EROI). The environmental benefit of manure is estimated from the avoided energy cost of using this alternative to inorganic fertilizers (AECM). The environmental benefit of grazing is measured through the energy cost of avoiding cultivated animal feed (AECP) and its impact in terms of non-utilized agricultural area (ALCP). The comparative analysis of different livestock breeding systems in three pastoral dairy goat farms in the Sierra de Cádiz in Andalusia, southern Spain, reveals the analytical potential of the new energy sustainability indicators proposed, as well as the potential environmental benefits derived from territorial-based stockbreeding and, more specifically, grazing activities. Those benefits include gains in energy efficiency, a reduction of the dependence on non-renewable energy, and environmental costs avoided in terms of energy in extensive pastoral systems.

Energy Efficiency Award system in Malaysia for energy sustainability

2010 ◽  
Vol 14 (8) ◽  
pp. 2279-2289 ◽  
Author(s):  
Zainuddin Abdul Manan ◽  
Lim Jeng Shiun ◽  
Sharifah Rafidah Wan Alwi ◽  
Haslenda Hashim ◽  
K.S. Kannan ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Sustainability

scholarly journals ENERGY SUSTAINABILITY OF RAMMED EARTH BUILDINGS

2017 ◽  
Vol 1 (17) ◽  
Author(s):  
Ivan Hegediš ◽  
Golub Karaman ◽  
Arpad Čeh ◽  
Neđo Đurić ◽  
Danijel Kukaras ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Cost Efficiency ◽  
Building Material ◽  
Energy Efficient ◽  
Wide Distribution ◽  
Rammed Earth ◽  
Energy Sustainability ◽  
Advantages And Disadvantages ◽  
Earth Construction ◽  
Rammed Earth Wall

Earth construction has long tradition in our civilization with wide distribution in various ways andtechniques of application. When combined with other natural materials it is the material for constructionof comfortable space for people. Increased need for energy efficient houses actualizes this type ofconstruction in modern conditions as a holistic solution for modern buildings. In addition to many usesof earth as a building material, rammed earth wall came to consideration since it allows us to observemost of the advantages and disadvantages of this type of construction. Finding solutions to remedyobserved disadvantages will lead to improved construction of adobe, wattle-and-daub, unbaked bricks,etc. This paper is aimed at proving energy efficiency of rammed earth wall and it points out possibleresearch directions into improvements while preserving existing benefits. The most important issue ispreservation of cost efficiency of earth building while using other natural supplements into the soilmixture.

scholarly journals Building an Ecosystem for a New Engineering Program

2018 ◽  
Vol 26 (2) ◽  
pp. 119-123
Author(s):  
Wieslaw Grebski ◽  
Michalene Eva Grebski
Keyword(s):  
Energy Efficiency ◽  
Quality Improvement ◽  
Continuous Quality Improvement ◽  
Energy Sustainability ◽  
Engineering Program ◽  
Continuous Quality ◽  
Penn State ◽  
The Individual

Abstract Penn State Hazleton has recently developed and implemented a new Engineering program with a focus on energy efficiency and energy sustainability. To accelerate the implementation cycle of the program, it was necessary to very rapidly create and establish the components of an ecosystem needed for the Engineering program to prosper and grow. This paper describes the individual components of the ecosystem as well as the methods used to establish them. The paper also discusses the different initiatives to increase enrollment as well as placement rates for graduates. Continuous quality improvement procedure applied to maintain the quality of the program is also being discussed.

Hydro Energy & Sustainability – Synthèse de la conférence internationale organisée par la SHF, les 29 et 30 janvier 2019 à Grenoble

2019 ◽  
pp. 117-121
Author(s):  
Didier Roult
Keyword(s):  
Energy Sustainability ◽  
Nouvelles Technologies ◽  
Eau Potable ◽  
Développement Économique ◽  
Énergies Renouvelables

L'hydroélectricité reste la plus importante des énergies renouvelables. Ses apports au système énergétique sont indéniables. Offrant à la fois la possibilité de stockage à différentes échelles de temps (de l'heure à l'année), une grande flexibilité et permettant de répondre aux besoins de services systèmes, l'hydroélectricité joue un rôle essentiel dans la transition énergétique. L'hydroélectricité participe largement au développement économique des territoires. L'usage multiple de l'eau (eau potable, irrigation, soutien d'étiage, navigation) est devenu la règle. Au-delà de la production énergétique, elle est au centre des enjeux liés à la gestion des ressources en eau et au développement des territoires. Mais, dans un contexte énergétique en pleine mutation, l'hydroélectricité doit s'adapter. La question environnementale reste une priorité, avec notamment de nombreuses solutions à apporter sur la continuité piscicole, reposant sur des actions de recherche et d'innovation importantes. De nouvelles technologies sont testées, telles que le couplage énergie photovoltaïque/ STEP, l'installation d'hydroliennes fluviales, et un nouveau regard est porté sur l'énergie des marées. Ce document présente une synthèse de la conférence internationale HydroES 2019 ≪ Quel avenir voulons-nous pour l'hydroélectricité en France et en Europe ? », organisée par la SHF et accueillie par INP ENSE3 à Grenoble, les 29 et 30 janvier 2019.

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.

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