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Muzaffarnagar, India

Afzal A.,Aligarh Muslim University | Mohibullah M.,Aligarh Muslim University | Sharma V.K.,Bhagwant Institute of Technology
International Journal of Sustainable Energy

One biomass energy source is rice husk, which is a very promising renewable energy source as it is an indigenous, cheap, and clean source of energy. However, environmental and financial profiles of electricity generation from rice husk must be assessed to ensure reduction in greenhouse gas (GHG) emission and positive cash flow. GHG emission from a rice husk generating system is significantly less than that from fossil fuel power plants. A dual-fuel diesel engine-generator of 800kW, using a rice husk gasifier, is considered for this analysis. This paper presents a comprehensive analysis of a traditional energy technology in a new perspective. The results of simulation data analysed in terms of pollution through GHG emissions, financial aspects, and suitability of the scheme for underdeveloped villages in economically developing nations are critical contributions of the paper. It also indicates the expected energy generation from the rice husk available in the region. © 2011 Taylor & Francis. Source

Kumar H.,Bhagwant Institute of Technology | Kanth R.K.,Turku Center for Computer Science | Liljeberg P.,Turku Center for Computer Science | Tenhunen H.,Turku Center for Computer Science
2011 10th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services, TELSIKS 2011 - Proceedings of Papers

Metamaterial like EBG (Electromagnetic Band Gap) structures are used in slotted microstrip antenna and mobile handset applications for increasing efficiency and better return loss characteristics. As we know that traditional microstrip antennas have inferior feature in case of bandwidth. In this paper an antenna with slotted ground plane and patch has been developed in which EBG structure is used as a metamaterial above the ground plane for reducing surface wave losses. This antenna has desirable characteristics for use in mobile communications at two frequency bands (2067-2245 MHz) covering UMTS band and (2390-2795 MHz) covering ISM band whereas antenna using EBG structure is working at three frequency bands covering GSM, UMTS and ISM band. The patch size of this antenna is relatively small and is compatible with integrated circuits, and with EBG structures it covers three frequency bands. © 2011 IEEE. Source

Afzal A.,Aligarh Muslim University | Mohibullah M.,Aligarh Muslim University | Sharma V.K.,Bhagwant Institute of Technology
International Journal of Sustainable Energy

A hybrid power system may be used to reduce dependency on either conventional energy or renewable systems. This article deals with the sizing, generator running hours, sensitivity analysis, optimisation, and greenhouse gas emission analysis of hybrid renewable energy systems (HRES). Two locations have been selected where the feasibility of using different hybrid systems is studied for the same load demand. One site is the small remote community of Amini in the Lakshadweep Islands, located in southern India in the Arabian Sea, where solar and/or wind energy is always available throughout the year to provide energy security. Another place is the rural township of Hathras, in the northern Indian state of Uttar Pradesh, where agricultural biomass is found in abundance for the whole year. A comparative study has been made for the two locations for the same load demand by simulating HRES. To achieve the goal of simulation, the hybrid optimisation model for electric renewables (HOMER) software of the National Renewable Energy Laboratory, USA, is used. An optimisation model of a hybrid renewable system has been prepared which simplifies the task of evaluating the design of an off-grid/standalone system. After simulating all possible system equipment with their sizes, a list of many possible configurations may be evaluated and sorted by net present cost to compare the design options. An elaborate sensitivity analysis has been used for each input variable; the whole optimisation process is repeated to get simulated system configurations © 2009 Taylor & Francis. Source

Singh N.,National Institute of Technology Jalandhar | Singh S.,National Institute of Technology Jalandhar | Kumar H.,Bhagwant Institute of Technology
ICECT 2011 - 2011 3rd International Conference on Electronics Computer Technology

In this paper we have described simulated as well as experimental results concerning miniaturization and enhanced performance of antennas using Metamaterials. One of the objectives is to obtain devices more compact and their enhanced performance than previous results. Antennas presented here using Metamaterials or Electromagnetic Band Gap (EBG) structures or Single Negative Structures (SNG) or Double Negative Structures (DNG) or Tunable Electromagnetic Band Gap Structures and Resonant Structures are more efficient than antennas without Metamaterials. We show that under proper conditions these materials are used for making Efficient, Miniaturized, Enhanced, Single band or Multiband Operating and Beam Steerable Antennas. © 2011 IEEE. Source

Kumar H.,Bhagwant Institute of Technology | Kumar M.,Bhagwant Institute of Technology | Kumar A.,Bhagwant Institute of Technology | Kanth R.,Turku Center for Computer Science
International Conference on Advanced Communication Technology, ICACT

The popularity of microstrip antennas are increasing day by day because of easy analysis and fabrication, and their attractive radiation characteristics microsrip antenna using simple electromagnetic band gap (EBG) substrate has higher gain than conventional microstrip antenna In this paper we propose to mushroom like Electromagnetic Band Gap (EBG) structure with different diameter of vias was designed to analyze the behavior of the EBG structure. Mushroom-like electromagnetic band-gap (EBG) structures exhibit unique electromagnetic properties that have led to a wide range of electromagnetic device applications and A simple, compact EBG microstrip antenna is proposed in this study that covers a wideband of 2.5 to 3.7 GHz ISM band, Bluetooth and UHF RFID applications. The use of the EBG Structure improves the radiation pattern of the antenna. The electromagnetic band gap structure is a periodic structure which exhibit a band gap over a certain frequency range over which the propagation of the electromagnetic wave is prohibited. Zeland IE3D simulations have been carried out to investigate and characteristics of the performance with improved design is under consideration in EBG Structure. © 2012 GIRI. Source

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