scholarly journals Occupant Behaviours And Preferences Toward Comfort Level And Energy Use In Building

2019 ◽  
Vol 8 (2) ◽  
pp. 6008-6013
Keyword(s):  
Energy Cost ◽  
Public Universities ◽  
Energy Use ◽  
Comfort Level ◽  
Energy Resources ◽  
Automated System ◽  
World Energy ◽  
University Buildings ◽  
Highly Correlated ◽  
Building Sets

The expeditiously growing world energy use has already increased the concerns over supply difficulties, consumption of energy resources and environmental impacts. Malaysian Government has spent about RM 2.5 billion for public buildings energy cost every year including nearly RM 400 million was spent for public universities energy cost alone. The study conducted to investigate the effect of occupant’s behaviour and preference that may affect comfort level and energy use in university buildings. A survey carried out to identified occupant’s behaviour and comfort related to energy consumption in the building. Sets of the questionnaire were prepared to be distributed among occupants of the building understudies. Based on the result, occupants prefers to have automated system for both lighting and ventilations to achieve comfort level in the classroom. Furthermore, highly correlated for automated system for both lighting and ventilation are consistently preferred by occupants; which indicate that occupants have consistently agree on automated system compared to standard switching. It could be concluded that occupant’s behaviour and preference can affect the energy use in the buildings.

scholarly journals Energy Management for Compressed Air in Cement Industry using Lean Principle

2019 ◽  
Vol 8 (11) ◽  
pp. 4126-4131
Keyword(s):  
Energy Use ◽  
Industrial Sector ◽  
Cement Industry ◽  
Energy Resources ◽  
World Population ◽  
Major Power ◽  
Process Industries ◽  
World Energy ◽  
Industrial Energy ◽  
Industrial Energy Use

Energy is an ultimate source for performing any activities. It is defined as capacity or power to do work, such as the capacity to move an object by the application of force. Energy can exist in a variety of forms such as electrical,mechanica l,chemical,thermal.Energy will not be generated but it can be transformed from one from to another. Energy resources are limited India has approximately 1% of world energy resources but it has 16% of world population. The industrial sector comprised 51% of global delivered energy use in 2007 and grows by an average annual 1.3% over the projection[worrell Ernst 2004].Approximately half of all industrial energy use is used in specific processes in the energy intensive industries. Compressors are the devices plays major role in every process industries and also a one of the major power consuming area. This paper seeks to identify and eliminate routine wastes which causes higher energy consumption in cement process industry(ULTRA TECH CEMENTS-RDCW) by using suitable layou

Seasonal pattern of energy use, respiration, and nitrogenase activity in root nodules of Myrica gale

1983 ◽  
Vol 61 (11) ◽  
pp. 2937-2942 ◽  
Author(s):  
Christa R. Schwintzer ◽  
John D. Tjepkema
Keyword(s):  
Energy Cost ◽  
Energy Use ◽  
Nitrogenase Activity ◽  
Root Nodules ◽  
Seasonal Pattern ◽  
Uptake Ratio ◽  
Experimental Conditions ◽  
Myrica Gale ◽  
Net Production ◽  
N Requirement

Annual CO2 evolution, H2 evolution, and C2H2 reduction were measured in root nodules from a vigorous Myrica gale stand in a Massachusetts peatland at 3-week intervals in 1980. Nodule activity was approximately the same under the experimental conditions (excised nodules reducing C2H2) as in nature (attached nodules reducing N2) and the CO2 evolution to O2 uptake ratio averaged 1.07. Nitrogenase activity was first detectable in late May, reached its maximum [Formula: see text] in mid-July, and disappeared in late October. The seasonal pattern of CO2 evolution was similar except that it continued at low rates when nitrogenase activity was absent. Hydrogen evolution was barely detectable. The energy cost of nitrogen fixation, expressed as the molar CO2:C2H4 ratio, was relatively low [Formula: see text] throughout the period of substantial nitrogenase activity and had a mean annual value of 4.9. Annual N2 fixation was estimated to be 2.8 g N m−2year−1, contributing about 33% of the annual N requirement measured in 1979. Annual C use by nodules was about 21.0 g C m−2 year−1. If this C were available for additional net production, it would increase it by about 5.5%.

scholarly journals Expansion of renewable energy resources and energyconscious behaviour at the University of Szeged

2018 ◽  
Vol 48 ◽  
pp. 03006 ◽  
Author(s):  
László Gyarmati
Keyword(s):  
Renewable Energy ◽  
Energy Use ◽  
Energy Resources ◽  
Solar Panels ◽  
Renewable Energy Resources ◽  
Investment Planning ◽  
Heating And Cooling ◽  
Natural Energy ◽  
Technological Developments ◽  
The University

At the University of Szeged, as the greenest University of Hungary, the sustainability project is built on two pillars. One of them is based on events and communication campaigns held regularly for the University citizens to prompt environmental-conscious behaviour, whereas the other is built on technological developments and on the extensive use of renewable energy resources. Thus the development of built environment and social responsibility both support the adequacy to sustainability requirements. The spreading of the effective solutions to making more and more buildings of the University energy efficient, numerous investments using renewable energy are also responsible for the decrease of the natural energy use of the institution contrary to the fact that the number of the buildings of the University of Szeged is continually increasing. It can be stated that the University of Szeged is committed to using renewable energy which is taken into consideration of each investment planning. The following examples confirm it: using geothermal cascade system for heating and cooling of five university bulidings, solar panels on 24 builidings and a unique technology of using the heat of wastewater to cool and heat one of the main bulidings of the university, namely the Study and Information Centre.

The Role of Renewable Energy Sources in a Sustainable World

1992 ◽  
Vol 3 (4) ◽  
pp. 430-443 ◽  
Author(s):  
Ruud Pleune
Keyword(s):  
Renewable Energy ◽  
Energy Conservation ◽  
Fossil Fuels ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
World Energy ◽  
World Concept

Present energy use - largely dependent on fossil fuels - is incompatible with the sustainable world concept. In a sustainable world, energy sources are renewable and used in a way that damage to the environment is minimalized. This study investigates the possibility of a sustainable world using renewable energy sources. It appears that - when strict energy conservation is applied - such a sustainable world seems to be attainable. This requires, however, drastic changes in most parts of society.

scholarly journals CASE STUDY OF ENERGY CONSERVATION IN INDUSTRY BY APPLICATION OF LEAN TOOLS

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
N.Sujith Prasanna ◽  
Dr.J.Nagesh Kumar
Keyword(s):  
Energy Conservation ◽  
Energy Saving ◽  
Energy Cost ◽  
Energy Use ◽  
Energy Savings ◽  
Sustainable Manufacturing ◽  
Integrated Approach ◽  
Energy Saving Potential ◽  
Lean Tools

Energy cost is significant in many of the manufacturing activities. The efficiency of energy use is quiet low as there are substantial visible and hidden losses. Visible losses can be easily identified and corrective action can be taken. However hidden and indirect losses form a sizeable portion of the losses. Identifying these losses is not easy and requires an integrated approach which includes thorough study of process, operations and their interactions with energy use. Industries across sectors have implemented lean management principles which target various wastes occurring in the plant. This paper discusses case studies which highlight the exploitation of lean tools as a means for unearthing hidden energy saving potential that often go unnoticed. In addition to the energy savings which results in improved profits and competitiveness, the approach also aids the industry to pursue a path of sustainable manufacturing.

scholarly journals Renewable energy resources in the EU (Policy scenario)

2013 ◽  
pp. 143-146
Author(s):  
Orsolya Nagy
Keyword(s):  
Climate Change ◽  
European Union ◽  
Renewable Energy ◽  
Energy Use ◽  
Biomass Energy ◽  
Energy Resources ◽  
The European Union ◽  
Renewable Energy Resources ◽  
The Right ◽  
The Eu

The use of renewable energies has a long past, even though its share of the total energy use is rather low in European terms. However, the tendencies are definitely favourable which is further strengthened by the dedication of the European Union to sustainable development and combat against climate change. The European Union is on the right track in achieving its goal which is to be able to cover 20% its energy need from renewable energy resources by 2020. The increased use of wind, solar, water, tidal, geothermal and biomass energy will reduce the energy import dependence of the European Union and it will stimulate innovation.

scholarly journals The Function of Paraventricular Thalamic Circuitry in Adaptive Control of Feeding Behavior

2021 ◽  
Vol 15 ◽  
Author(s):  
Gorica D. Petrovich
Keyword(s):  
Feeding Behavior ◽  
Cognitive Processes ◽  
Energy Use ◽  
Hippocampal Formation ◽  
Energy State ◽  
Energy Resources ◽  
Behavioral Choice ◽  
Cortical Areas ◽  
Prefrontal Cortical ◽  
Set Up

The paraventricular nucleus of the thalamus (PVT) is a complex area that is uniquely embedded across the core feeding, reward, arousal, and stress circuits. The PVT role in the control of feeding behavior is discussed here within a framework of adaptive behavioral guidance based on the body’s energy state and competing drives. The survival of an organism depends on bodily energy resources and promotion of feeding over other behaviors is adaptive except when in danger or sated. The PVT is structurally set up to respond to homeostatic and hedonic needs to feed, and to integrate those signals with physiological and environmental stress, as well as anticipatory needs and other cognitive inputs. It can regulate both food foraging (seeking) and consumption and may balance their expression. The PVT is proposed to accomplish these functions through a network of connections with the brainstem, hypothalamic, striatal, and cortical areas. The connectivity of the PVT further indicates that it could broadcast the information about energy use/gain and behavioral choice to impact cognitive processes—learning, memory, and decision-making—through connections with the medial and lateral prefrontal cortical areas, the hippocampal formation, and the amygdala. The PVT is structurally complex and recent evidence for specific PVT pathways in different aspects of feeding behavior will be discussed.

Harmonized web-based information systems for shallow geothermal energy use in Austria

2021 ◽  
Author(s):  
Cornelia Steiner ◽  
Gregor Goetzl ◽  
Martin Fuchsluger ◽  
Alexander Rehbogen
Keyword(s):  
Geothermal Energy ◽  
Role Model ◽  
Energy Use ◽  
Green Energy ◽  
Energy Resources ◽  
Infrastructure Development ◽  
Information Platform ◽  
Groundwater Availability ◽  
Shallow Geothermal Energy ◽  
Cover Ratio

<p>Neither regional development, construction projects nor infrastructure development – structural planning does not fully consider energy supply in Austria (yet). The project “Spatial Energy Planning for Heat Transition” is part of the research initiative “Green Energy Lab”, which has a project life-time from June 2018 to May 2021. It aims to provide a sound basis for the integration of heat in private and public planning processes and for the implementation of the energy infrastructure of the future together with energy providers.</p><p>Three Austrian states (Vienna, Styria and Salzburg), their capital cities and pilot-municipalities of all scales work together to provide all information necessary for the implementation of spatial heat-planning – as role model for Austria and other European countries. The GIS-based web-tool “heat-atlas” will provide this harmonized data and serve an information platform for project developers as well as for regional planning, fostering a sustainable use of all available sustainable energy resources and infrastructures to their full extent. The system of the information platform is arbitrarily scalable and is aimed to be expanded to other interested regions of Austria on demand.</p><p>One part of this “heat-atlas” is about shallow geothermal energy and covers vertical closed loop and open loop systems. The Geological Survey of Austria developed new methods to estimate capacity and energy resources as well as to show possible limitations of shallow geothermal energy use on property level. The resource calculations combine location-specific parameters such as thermal conductivity, underground temperature and groundwater availability with system-specific parameters such as mode of operation, operational hours, geometry and threshold values demanded by official regulations.</p><p>The method provides not only information about the maximum amount of energy available on the property, but also about the cover ratio of the demand. So called level-1 maps show the resources for standardized well-doublets and borehole heat exchangers independently of the property. The calculations for level-2 maps consider site-specific properties such as heating and cooling demand, operational hours and size of the property. This enables the estimation of the overall energy resources and the cover ratio of the property.</p><p>The results are shown as maps and as location specific query, which gives a concise summary of all relevant information for one location in form of an automatically generated report. More information about the project is available at http://www.waermeplanung.at/.</p>

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