VOLUME 1 ISSUE 11
IJATSER Volume 1 – Issue 11, October 2016 Edition
All listed papers are published after full consent of respective author or co-author(s).
For any discussion on research subject or research matter, the reader should directly contact to undersigned authors.
Ref. no 1 : EXPERIMENTAL INVESTIGATION OF COLD STORAGE FOR COP WITH NUMBER OF DOOR OPENING
AUTHORS : Sunanda Joshi , Mr. Suresh Kumar Badholiya
ABSTRACT: As we have a tendency to all fathom the refrigeration and air-condition system and their totally different applications for protective the spoilable merchandise to providing comfort to the denizen. each refrigeration similarly as air coins employed not just for domestic however conjointly for industrial functions. during this project we have a tendency to square measure concentrating on impact on performance activity characteristic referred to as COP i.e. constant of performance of a chilly storage used for prolonging the perishing of vegetables like potatoes, onion, etc. As a technologist we have a tendency to all fathom the method of refrigeration and various factors that have an effect on its performance. during this project we have a tendency to square measure concentrating one amongst the vital issue that is mostly unheeded whereas we have a tendency to use any refrigeration or air-con system i.e. impact of range of doors openings. Some folks can say it’s terribly obvious that if a system is in use we have a tendency to should need to open it so as to use it however as Associate in Nursing engineer we have a tendency to should be knowing what is going to really happen once we square measure exposing a cold space to close temperature or temperature oftentimes. For determinative this impact and verify its results I thought-about a chilly storage and picked up knowledge in variety of reading of varied parameters which might be used for obtaining the precise impact on performance characteristics and located that as we have a tendency to proceed exposing the cold area to atmosphere, we have a tendency to lose huge quantity of refrigeration impact as COP of constant cold storage having single door gap is 6.21 drops all the way down to 2.05 of six door gap. thus we will conclude from following experiment that for effective refrigeration we’d like to stay the cold area closed the maximum amount as we will. This result’s terribly essential in terms of effective utilization of a chilly storages or any refrigeration or air-consystem that is wide used for various domestic and industrial functions.
Ref. no 2 : AN EXPERIMENTAL ANALYSIS OF CEMENT CONCRETE PREPARED WITH RICE HUSK ASH & STEEL FIBRE
AUTHORS : Ms. Zeba Khatoon, Prof. Shailesh Kushwah
ABSTRACT: The application of resilience enhancing mineral admixtures or additional cementing materials has gained considerable importance from the last decade as a key to long service life of concrete structures. As a construction material, concrete is having largest production as compared to all other materials. The increase in demand for the ingredients of concrete is met by partial replacement of materials by waste materials which is obtained by means of various industries. In today’s situation concrete needs special combinations of performance and uniformity requirements that cannot be always achieved by using conventional constituents and normal mixing. Concrete is weak in tension, has limited ductility and little resistance to cracking. On the other hand, Due to growing environmental awareness as well as stricter regulations on managing industrial waste, the world is increasingly turning to researching properties of industrial waste and finding solutions on using its valuable component so that those might be used as secondary raw material in other industrial branches. The present experimental investigation is done to study the effect of partial replacement of cement by Rice husk ash (RHA) with using Steel fibre in concrete. The experimental investigation carried out on steel fibre up to a total fibre volume fraction of 0.5%, 1%, 1.5% and 2.0 % and cement was partially replaced with 10%, 20%, 30% and 40% of RHA on the basis of previous research results. The mechanical properties like compressive strength, splitting tensile strength and flexural strength were studied for concrete prepared. All results were determined at the age of 7, 14 and 28 days of curing. The laboratory results showed that addition of steel fibres reinforced RHA into concrete increases the mechanical properties.
Ref. no 3: Broadband printed monopole antenna for multiple application
AUTHORS : Amita Guru, Rajneesh Mishra, Shailendra Yadav
ABSTRACT: Wireless technology is one of the main areas of research in the world of communication systems today and a study of communication systems is incomplete without an understanding of the operation and fabrication of antennas. This was the main reason for our selecting a project focusing on this field. In the last few years there has been dramatically increased in the interest of Wireless Communication, which includes the commercial/personal communication. It is the choice of the users to have a small and light weight handset. Due to the development of VLSI/ULSI techniques the researchers are able to reduce the size and power hungry of the devices to a greater extent. Antenna become the front and back end of the wireless communication system. The present day is the age of wireless communication. The potential application of Monopole Antenna for the wireless and personal commutation is the hot topic of interest of the researchers around the globe. The present day demands wide band, miniature antennas with other features. The choice of MSA for communication being old, researchers managed to develop new variants of the antenna to meet the demand of the present-day communication. The following thesis consists of a monopole printed antenna. The dielectric used in the designing of this monopole antenna is FR4. The top portion of the antenna consisting of a patch having rectangular slot, micro strip line and bottom part consists of a partial ground plane with a semi elliptical notch. The overall size of dielectric is 30*30*1.5. The fractional bandwidth of this structure is (152.11%) 3.41 – above 25 GHz. The bandwidth enhancement is due to cutting various types of slots in the patch and ground plane. Compared with conventional antennas, micro strip patch antennas have more advantages and better prospects. They are lighter in weight, low volume, low cost, low profile, smaller in dimension and ease of fabrication and conformity. Moreover, the micro strip patch antennas can provide dual and circular polarizations, dual-frequency operation, frequency agility, broad band-width, feed line flexibility, beam scanning Omni directional patterning. In this paper we discuss the micro strip antenna, types of micro strip antenna, feeding techniques and application of micro strip patch antenna with their advantage and disadvantages over conventional microwave antennas. In high-performance aircraft, spacecraft, satellite, and missile applications, where size, weight, cost, performance, ease of installation, and aerodynamic profile are constraints, low-profile antennas may be required. Presently there are many other government and commercial applications, such as mobile radio and wireless communications that have similar specifications. The following are the applications of the given antenna structure 5.2/5.8 GHz WLAN bands, 5.5 GHz WiMAX bands, X band (8 – 12 GHz),Ku band (12 – 18 GHz), satellite communication and other wireless services.
Key words: Fractional bandwidth, impedance matching, ultra wide band.
Ref. no 4: Cup Shaped Enhancing Bandwidth Micro strip Antenna
AUTHORS : Pratibha Dixit, Rajneesh Mishra, Shailendra Yadav
ABSTRACT: In day-to-day life, each and every electronic device which we are using requires an antenna for communicating or we can say for connecting from one device to another we require an antenna and without antenna we cannot imagine our communication system. Like our cell phones, blue tooth, wifi, radar, wiMAX, television etc. all runs with the help of antenna. Micro strip antenna is one such type of antenna which has several advantages over other type of antennas like low profile, low cost, small size, commercially available, stable radiation patterns, and good surface current and effective bandwidth. Micro strip antenna shows very effective results. In high-performance aircraft, spacecraft, satellite, and missile applications, where size, weight, cost, performance, ease of installation, and aerodynamic profile are constraints, low-profile antennas may be required. Presently there are many other government and commercial applications, such as mobile radio and wireless communications that have similar specifications. To meet these requirements, micro strip antennas can be used. These antennas are low profile, conformable to planar and non planar surfaces, simple and inexpensive to manufacture using modern printed-circuit technology, mechanically robust when mounted on rigid surfaces, compatible with MMIC designs, and when the particular patch shape and mode are selected, they are very versatile in terms of resonant frequency, polarization, pattern, and impedance. In addition, by adding loads between the patch and the ground plane, such as pins and varactor diodes, adaptive elements with variable resonant frequency, impedance, polarization, and pattern can be designed. The cup shaped enhancing bandwidth micro strip antenna having operating frequency of 10.5 GHz starting from 2.5 GHz to 12.1 GHz. The overall size of the antenna is 35 mm *40 mm *1.5 mm and is fabricated on commercially available, low cost FR4 substrate. The fabrication of this antenna is very easy and due to its size, it can be used anywhere easily. The design of the antenna is also very small which can be easily fabricated and applied to any device easily. The different stages, parameter sweep of different parameters, Y-matrix, Z-matrix, VSWR, gain, radiation efficiency, radiation patterns and surface currents are evaluated at different frequencies. The following antenna can be used for different purposes like Ultra-wide band applications, Wi-Fi, 3.5/5.5 GHz WiMAX band, 5.2/5.8 GHz WLAN band, 60/90 GHz E – band military applications, 8/12 GHz X – band,12/18 GHz Ku – band, space and satellite communications etc.
Key words:Fractional bandwidth, impedance matching, ultra wide band.
Ref. no 5: Low Area FPGA Implementation of CTR Mode Encryption using Parallel AES
AUTHORS : Kumar Vishal, Prof. Nitesh Dodkey, Prof. Siddharth Singh Parihar
Abstract— In this paper a low area implementation of CTR (Counter) mode encryption is discussed. CTR mode encryption uses AES (advanced encryption standard). The protocol is designed for WLAN (wireless local area network) multimedia applications. The basic idea is to offload the computationally intensive encryption and authentication services to the end systems’ CPU. Enhanced methods are employed to implement the counter (CTR) mode with cipher block chaining message authentication code protocol (CCMP) and CTR protocol. In this design the AES is designed in parallel and AES module generates output in a single clock. The CTR is designed using a single AES module using hardware sharing technique compared to nine AES modules required in parallel design; this reduces the area requirement on FPGA.
Keywords—Field Programmable gate array (FPGA), CCMP, CTR, AES, Pipelined Architecture, WLAN Security.
Ref no 6: Thermal and mechanical properties of nano Al2O3 particle‐ reinforced Aluminium matrix composite through stir casting technique
AUTHORS : Ajay Kumar Barnwal, Ravindra Mohan, D. P. Mondal
Abstract: Al2014 aluminium alloy matrix composite (AAMCs) reinforced with varying volume fraction of Al2O3 particles (0. 5, 0.75 and 1.5 %) were fabricated by stir casting method. The composites were characterized for their thermal conductivity and mechanical properties like as compressive deformation, hardness as well as the dispersion of Al2O3 particles. Scanning Electron microscope showed uniform dispersion of Al2O3. The thermal conductivity marginally varying with volume fraction of Al2O3 particle and it decreases with increase in volume fraction of Al2O3 particles. The yield strength and micro‐hardness increases with increase in volume fraction of Al2O3 particle.
Keywords: Metal matrix composite, stir casting, Thermal conductivity, mechanical properties
Ref no 7 : Effect on Heat Transfer on Aluminium by Tic for Hybrid Heat Exchanger Applications
AUTHORS : Kaushal Shivhare, RavindraMohan, Gaurav Kumar Gupta
Abstract: Today’s heat exchangers must meet variety of highly demanding requirements. In terms of performance, they have to ensure maximum heat transfer while keeping size to a minimum. Furthermore, the durability of heat exchangers must be extremely high, providing trouble-free performance throughout its service life at low manufacturing costs. Aluminum, in its various forms, offers clear possibilities to achieve these goals and is also well positioned to meet the challenges of the increasing market demands for cost effective, energy-efficient products and new customized, innovative applications. This is made possible by the large variety of aluminum-based materials and product forms that empower system designers and manufacturers with multiple options for significant design improvement and cost. Hence we have to idea develop the Al based alloy and its thermal and mechanical-chemical analysis is done. After the analysis we found that Al based alloy is increases the thermal conductivity due to alloying elements and very good result in mechanical properties.