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216 results for “Energy Efficiency”
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Research ArticleOpen accessIn the abstractDesign Maximum Power Point Tracking (MPPT) on Photovoltaic Panels using Fuzzy Logic MethodAhmad Faizal, Sutoyo, Mulyono et al.Solar energy is a clean energy, renewable, and available for the long term. The tool used to convert the energy generated from the intensity of sunlight into electricity is photovoltaic panels. However, due to the high cost and low efficiency, the use of the energy is still kind small compared to other types of energy sources. Thus, the need for … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 4 · 10 Aug 2016 · 8,503 accessesView PDFCite
Review ArticleOpen accessIn the abstractReview of Charge Pump Topologies for Micro Energy Harvesting SystemsMichelle Lim Sern Mi, Md. Shabiul Islam, Jahariah Sampe, Sawal Hamid Md. AliThis paper reviews CMOS based charge pump topologies used within autonomous embedded micro-systems. These charge pump structures have evolved from its simplistic diode-tied, single-branches with major threshold drops to exponential type, dual-branches with sophisticated gate and substrate control for lower voltage operation. Published charge pumps are grouped based on architecture, operation principles and pump optimization techniques with their pros and … …American Journal of Applied Sciences, Vol. 13, Issue 5 · 26 May 2016 · 7,630 accessesView PDFCite
Research ArticleOpen accessIn the abstractMeasuring Intra-City Eco-Efficiency Variations of Urban Infrastructures in JeddahMohammed Aljoufie, Alok TiwariSaudi cities are experiencing construction booms linked to urban infrastructure services and the Kingdom’s second largest city, Jeddah, is not an exception. As these booms are associated with urban expansion and rapid population growth, the major challenge confronting urban planners is the ensuring of resource efficiency given the offered infrastructure. In fact, reducing the consumption of resources and the impact … …American Journal of Environmental Sciences, Vol. 12, Issue 3 · 14 May 2016 · 7,447 accessesView PDFCite
Review ArticleOpen accessIn the abstractArchitecture of an Ultra-Low-Power Fully Autonomous Universal Power Conditioner of Energy Harvester for Wireless Sensor Networks: A ReviewYeo Kim Heng, Md. Shabiul Islam, Susthitha Menon et al.A fully autonomous Universal Power Conditioner (UPC) that can accept energy from any micro-energy harvester (e.g., photovoltaic, thermoelectric, electromagnetic, piezoelectric etc.) is proposed. Generally, UPC removes the need of multiple optimized source specific converters. But, the proposed UPC architecture will be Ultra-Low-Power (ULP) with maximized efficiency to support the low energy levels generated by harvesting sources. This UPC uses a … …American Journal of Applied Sciences, Vol. 13, Issue 3 · 28 Mar 2016 · 7,786 accessesView PDFCite
Research ArticleOpen accessIn the abstractMethod of Efficiency Improvement in District Heating SystemsAndrey Gennadiievich Batuhtin, Maxim Stanislavovich Bass, Sergey Anatoljevich Ivanov et al.The article determines application potential of solar energy in conditions of sharply continental climate. It presents an energy-efficient solar energy recovery scheme in district heating systems, allowing to reduce capital costs and maintenance charges and to increase degree of substitution of conventional sources of heat. Versatility of systems using this method results in its multi-zone application: From a cottage-type house … …American Journal of Applied Sciences, Vol. 13, Issue 2 · 1 Feb 2016 · 7,525 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnergy Audit of Health Care Facilities: Dynamic Simulation of Energy Performances and Energy-Oriented Refurbishment of System and Equipment for Microclimatic ControlFabrizio Ascione, Nicola Bianco, Rosa Francesca De Masi et al.Topic of the study is the investigation of potentialities of energy simulation for optimizing the building refurbishment, by taking into account impacts of both envelope renovation and HVAC system selection. Energy audit and refurbishment of the Day-Hospital building of a great Italian health care facility are proposed. A meticulous energy diagnosis of the base case building and design of a … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 4 · 20 Jan 2016 · 8,072 accessesView PDFCite
Research ArticleOpen accessIn the abstractWinter Energy Budget of Larva of Indian Tropical Tasar Silk Insect Antheraea mylitta Drury Living in the Host Plant Shorea robustaAmulya Kumar DashEnergy budget of larva of Antheraea mylitta Drury living in Shorea robusta Gaertn host plant was prepared in winter season. During fifth instar the rate of food energy consumption, absorption, body growth, silk gland growth and respiration increased suddenly in comparison to other instars. The amount of consumption, absorption, body tissue growth and silk gland growth during fifth instar only … …OnLine Journal of Biological Sciences, Vol. 16, Issue 1 · 26 Nov 2015 · 7,289 accessesView PDFCite
Case ReportOpen accessIn the abstractLoad Balancing Technique Based on Broadcasting and Residual Energy Using Adaptive Clustering Hierarchy Protocol (LBEACH)Abdullah Soliman Alshraa, Venus Wazeer SamawiOne of the important factors of Wireless Sensor Networks (WSNs) is sensors lifetime. Elongating sensors lifetime increases the benefits from the network capabilities as much as possible. To elongate WSNs lifetime, power consumption should be reduced. To do so, load balance technique is applied to distribute the energy consumption among cluster’s nodes in the WSN. In each cluster, the node … …Journal of Computer Science, Vol. 11, Issue 6 · 13 Oct 2015 · 6,614 accessesView PDFCite
Research ArticleOpen accessIn the abstractGeometry Modification of Flywheels and its Effect on Energy StorageShenel Bankston, Changki MoThis paper examines the influence of various geometric configurations of flywheels on kinetic energy storage performance using finite element analysis. Historically flywheels have been used in various applications. From such applications as pottery wheels to steam engines, flywheels have been used to store mechanical energy. Currently, in the ever expanding world of green energy development, flywheel energy storage systems provide … …Energy Research Journal, Vol. 6, Issue 2 · 28 Sep 2015 · 8,419 accessesView PDFCite
Review ArticleOpen accessIn the abstractArchitecture of Ultra Low Power Micro Energy Harvester Using RF Signal for Health Care Monitoring System: A ReviewFarah Fatin Zulkifli, Jahariah Sampe, Muhammad Shabiul Islam, Mohd Ambri MohamedThis research presents architecture of Ultra Low Power (ULP) Micro Energy Harvester (MEH) using Radio Frequency (RF) signal as an input. RF has many advantages compared to other ambient sources because it is not affected by changes of weather or time, does not require heat or wind exposure and it can be moved randomly within the bound of the transmission … …American Journal of Applied Sciences, Vol. 12, Issue 5 · 7 Jul 2015 · 6,961 accessesView PDFCite