104,546 research outputs found

    Design of an energy conservation building

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    The concepts in designing and predicting energy consumption in a low energy use building are summarized. The building will use less than 30,000 Btu/sq.ft./yr. of boarder energy. The building's primary energy conservation features include heavy concrete walls with external insulation, a highly insulated ceiling, and large amounts of glass for natural lighting. A solar collector air system is integrated into the south wall. Calculations for energy conservation features were performed using NASA's NECAP Energy Program

    Zigbee Based Energy Based Conservation in Railways

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    Abstract- Current railway tunnel lighting control systems are often manually controlled, resulting in significant energy waste. This article designs a zigbee based control for tunnel lighting energy control systems. The system uses solar energy lighting, so the zigbee based system is designed for solar lights. It deals with automatic railway gate operation at a level crossing replacing the gates operated by the gatekeepers .This system has been deployed in Europe at the Antwerp North-South junction since past 4 years. The performance results show that the energy conservation system provides sufficient lighting levels and significant energy conservation and automatic gate control. DOI: 10.17762/ijritcc2321-8169.150311

    Energy Audit For Lighting And A/C In Academic Building - Case Study In IKM Bintulu

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    In recent years, extensive research and studies have been focused on energy efficiency with the common target to reduce the energy consumptions against the backdrop of challenging of modem days. Various emerging technologies have been developed to reduce the energy consumptions even though there are still some sectors that are not concerned with the important of the energy management at all. Lighting and air conditioning is a key part of energy use in commercial and industrial sector. In fact, it's verified that lighting and air conditioning plays a very .important role which affecting the profit margin by energy conservation. Major electrical energy utilization in building is affected by lighting. Lighting required approximately 25% energy consumptions in building. Even worst, in commercial business, 70% to 80% of electricity bills are consumed by lighting. Besides, in view of Malaysian context, major uses of electricity consumed by lighting and approximately 17% of national electricity usage utilized by lighting purposes. Both lighting and air-conditioning plays a very important role in increasing the profit margin by energy conservation. Thus, effective energy management has been considered as the main way to reduce energy consumption by lighting and air-conditioning. Energy audit is an effective management tool to reduce cost. Initially, the existing lighting system and air conditioning system in Block C is analyzed in term of total power, energy consumption, and electricity payment per month and per year. Therefore, the project concentrates on energy audit for lighting and air conditioning system in the Institut Kemahiran Malaysia (IKM) Bintulu case study for academic building. Most of the appliances in the IKM Bintulu building use electricity. As the result, several methods of energy saving proposed. The total cost, annual profit, and payback period for each method are also studied. These appliances have label on them stating how much power they used. The unit tariff charged by SESCO (Sarawak Electricity Supply Corporation) will be reviewed and analyzed. The calculation on the energy consumptions were based on the amount of power utilization

    Optimasi Sistem Pencahayaan Ruang Kuliah Terkait USAha Konservasi Energi

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    The lighting system in a classroom has to be considered appropriately in designing buildings and energy managemen must also be optimized. Bad used of lighting systems can cause low productivity, comfort and also result in waste of energy. Simulation results and experimental observations with DIALux v4.9 program show that the lighting system in the classrooms of the P building in Petra Christian University has not been optimally designed with consideration and does not meet the national standard of lighting system for energy conservation in Indonesia (SNI). By rearranging the interior elements and the implementation of control systems based with the teaching time and media, the lighting systems in the interior space could be improved and also conserve energy upto 36.4%

    Optimized Energy Utilization and Performance Evaluation of an Oil Filling Station in Dubai

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    This study focuses on the optimized energy conservation in commercial infrastructure and filling station in Dubai without affecting its function and the customers. This method involves the installation of automatic thermostats, dynamic lighting controls and solar panels. The proposed technique covers the HVAC system and lighting system of the infrastructure which need considerable amount of investment which can give full returns in 4 year of performance, and energy conservation is guaranteed in 6 years. The corresponding design and result analysis are clearly discussed in this article and the energy comparison study has proved the effectiveness of the proposed techniques

    A network infrastructure for real-time monitoring of campus energy consumption

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    Pressing environmental concerns and rising energy costs have led many organizations to carefully review their energy consumption. Conservation requires that energy use be monitored accurately and continuously, to identify areas with higher energy consumption. Lighting has repeatedly been identified as such an area. A simple, yet effective method for reducing lighting energy consumption is retrofitting existing light fixtures with modern energy-efficient versions. The University of Missouri-Rolla is currently carrying out a lighting retrofit of all fixtures on campus. The pilot building for this project is McNutt Hall, as it has the single highest consumption of lighting energy. The results of the pilot study will be used to guide the remainder of the retrofit project. The focus of the research described in this thesis is the development and deployment of an automated, networked system for real-time monitoring of lighting energy. The specific contributions of the research involve the design of the lighting monitoring system architecture and the communication network that links it to the campus building automation system --Abstract, page iii

    Impact of solar shading geometry on building energy use in hot humid climates with special reference to Malaysia

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    External solar shading devices can substantially reduce the cooling load of buildings and large energy savings can be achieved. Hence, intercepting the radiant heat wave before penetrating to the internal environment through envelope openings is the main criterion in designing solar shading. In hot and humid climate, one draw back of using shading devices is the risk to reduce daylight level thus increases in use of artificial lighting. Therefore it is important to understand the magnitude of energy consumption for cooling and lighting when shading devices are adapted in order to analyze optimum shading as energy conservation option in high-rise office buildings. In other words, little is known about the relationship between energy use and external horizontal shading device geometry. In an attempt to elucidate these complex relationships, a simple experiment of an office room is carried out using dynamic computer simulation program eQUEST- 3 (DOE 2.2). The study indicated depth of the external horizontal overhang can be manipulated to obtain an optimum energy use in high-rise buildings. The results showed that correlation between overhang depth and energy is an important aspect compared to correlation between overhang depth with building cooling loads and daylight level, especially in tropical climate conditions

    Persuasive lighting : the influence of feedback through lighting on energy conservation behavior

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    Earlier research has investigated persuasive technology: Technology designed to influence human behavior or attitudes. The current research investigates lighting as persuasive technology. In an experimental study, participants could conserve energy while carrying out tasks and received feedback about their energy consumption in each task. We tested the effect of feedback through a lamp that gradually changed color dependent on energy consumption and compared these effects to more widely used factual feedback. Results indicated that feedback through lighting has stronger persuasive effects than factual feedback. Furthermore, factual feedback seemed more difficult to process than lighting feedback, because cognitive load interfered with processing factual feedback, but not with processing lighting feedback. Implications for theory and design of persuasive lighting, and (ambient) persuasive technology are discussed

    Optic Fibericity - The New Era Lighting

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    Bringing sunlight inside buildings to decrease the electricity needed for lighting, to provide natural light, and to decrease the energy needed for cooling has been a major technology research interest referred to as daylighting. Fiber optic daylighting (FOD) systems are an evolving technology that may provide a solution for daylighting technology. These systems use fiber optics combined with solar light collectors to transmit daylight to spaces historically difficult to daylight, using sidelighting or toplighting strategies. This research aims to show the energy conservation capability and efficiency of FOD as compared to Artificial Lighting. Calculations will highlight efficiency and performance for the design concepts. These calculations are intended to show how much energy conservation can be achieved with better illumination from FOD as compared to lighting generated by solar power (PVC) system, for the same sun intensity captured by the sun collectors of the two systems and the same length of cable. Matlab / Simulink software was used in simulating the efficiency and performance for the design concepts
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