Volume-7, Issue- COMET18
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Volume-7, Issue- COMET18
Conference on Mechanical Engineering & Technology (COMET)-2018 Date of Conference: March 31- April 01 2018 | Organised by: Mechanical Engineering Society, Department of Mechanical Engineering, Indian Institute of Technology, (Banaras Hindu University) Varanasi (U.P), India. |
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Volume-7 Issue-COMET18, April 2018, ISSN: 2249-8958 (Online) Published By: Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd. |
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1. |
Authors: |
Vishal Agrawal, Anuj Tiwari, Pawar Shreyas Vijay, Avinash Ravi Raja, Sanjay Kumar Gupta | |
Paper Title: |
Cladding of Mild Steel with Pure Copper using Modified Gas Metal Arc Welding Process | ||
Abstract: Cladding is an important manufacturing process where a layer of corrosion resistant material is deposited on another material to improve its corrosion resistance. Gas metal arc welding process was used to produce a cladding of copper on mild steel with some modification to incorporate two shielding gases (CO2 and Argon) to be able to perform cladding by Gas Metal Arc Welding Process. Such process has several applications including those in plane bearings and big electro-hydro- generator construction. The aim of this research is to study the improved clad quality of pure Copper to Mild Steel by optimising weld parameters of Gas Metal Arc Welding. From the cladded materials, (produced at different welding parameters) samples were prepared for mechanical and metallurgical testing. Copper- mild steel interface has been exposed through image-mapping and metallographic study. The relationship between weld parameters and bead sizes was also established. Experimental studies showed that copper can be cladded to mild steel (parent metal) with a good quality of bonding by gas metal arc welding. Keywords: Gas Metal Arc Welding, Cladding, Copper, Mild Steel, Microstructure. References:
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2. |
Authors: |
Vikas Sharma, Joy Prakash Misra | |
Paper Title: |
Multi- Optimization of Surface Roughness & Material Removal Rate of D3 Tool Steel While Wet Turning Using Multi-Criterion Decision Making Methods | ||
Abstract: The objective of the paper is to obtain an optimal setting of turning process parameters (cutting speed, feed rate and depth of cut) resulting in an optimal value of the surface roughness and material removal rate while turning D3 tool steel TiC-coated tungsten carbide tool under wet condition. Taguchi L9 array has been used to design the experiments, the results are further analyzed using MCDM techniques named Technique for order preference by similarity to ideal solution TOPSIS and Preference Ranking Organization Method for Enrichment of Evaluations (PROMETHEE) to investigate the multi-optimization of response characteristics of D3 tool steel bars. Keywords: TOPSIS, PROMETHEE, TAGUCHI, DOE References:
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3. |
Authors: |
Sidhaant Gupta, Mohit Kapoor, Surabhi Lata | |
Paper Title: |
Experimental Investigation of Mechanical Properties of Stir-Casted AA4104 Aluminium based Composite Reinforced with Flyash and Titanium Dioxide | ||
Abstract: Metal matrix composites are the new source of high potential characteristics in the aerospace, automobile, defence, and research industries. Among the various types, aluminium based composites owing to its light weight property along with excellent mechanical properties find applications in various sectors. This work aims to investigate aluminium based composites fabricated using industrial waste as reinforcements through liquid state fabrication process. The reinforcements consist of raw flyash from thermal powerplant and titanium dioxide (TiO2) while the base matrix was aluminium (AA4104). The composite was casted as bars of aluminium-flyash, aluminium-TiO2 and aluminium-flyash-TiO2 for the analysis of their mechanical and structural properties. Raw flyash was used as s a step forward towards reducing its ecological and physiological impact when it is left unused as an industrial waste. Currently, raw flyash generated by thermal power plants is only being utilized in composite bricks used in the construction of roads and footpaths. Even after use in composite bricks, 5% -10% of raw flyash gets wasted, which as can be reutilized as a reinforcement in aluminium-matrix composites. Titanium dioxide was added to the aluminium-matrix in order to enhance the strength and toughness of the base metal by retaining its unique properties and without any significant weight changes of the overall composite. The reinforcements were added by weight % based on the pervious literature available. This was followed by the mechanical testing of the fabricated composite and further analysis of obtained results. The result concluded the analysis by identifying the effect of both the reinforcements, individually and collectively, on the mechanical properties of the fabricated aluminium based composite and the underlying reasons for the new behavior of the composite. Keywords: Stir Casting, Flyash, Titanium Dioxide, Tensile Strength, Compressibility. References:
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4. |
Authors: |
Rishabh Saxena, Siddhanth Bankeshwar, Hasmeet Singh | |
Paper Title: |
Identification of Influencing Parameters of Remanufacturing & Its Effect on Reverse Logistics Management | ||
Abstract: Remanufacturing is one of the most economical and efficient recycling processes in reverse logistics. It also satisfies the objectives of the closed loop supply chain with dynamic recovery of product with specifications nearly equal to the new product. This paper focuses the different parameters in the remanufacturing. The study of the different remanufacturing methodologies are carried out with consideration of their approaches and how they improve the remanufacturing efficiency of the product for the better recovery. Different case studies are analyzed to find out barriers in the remanufacturing. The literature shows that remanufacturing stands tall among the other recycling process as it gives more economical and ecological benefits. Keywords: Remanufacturing, Reverse Logistics Management. References:
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5. |
Authors: |
Gaurav Bharadwaj, Vikas Sharma, Avdhesh Sharma | |
Paper Title: |
Correlations Development for Nusselt Number and Friction Factor of Roughened Double Pass Solar Air Heater Duct | ||
Abstract: An experiential study has been executed to see the otcome of using inclined and transverse ribs as roughness elements on the Nusselt number and friction features on absorber plate in the rectangular duct used in DPSH. Width to duct height proportion (w/h) is 10, relative roughness pitch (p/e) varies from 5-20, relative roughness height (e/Dh) varies from 0.043, attack angle (a) varies from 300-900 and Reynolds number lies between 4000-18000. The comparision of heat transfer and friction factor of roughened duct and smooth duct has been shown. A appreciable rise in the Nusselt number and friction factor has been noticed as that of smooth duct. Nusselt number and friction factor correlations have been developed using the experimental data Keywords: Nusselt Number; Friction Factor; Solar Air Heater Duct; Ribs. References:
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6. |
Authors: |
Bharat Singh, Piyush Singhal, Avdhesh Sharma | |
Paper Title: |
Multiobjective Optimization of Submerged Arc Welding Parameters on AISI 5130 Alloy Steel using Taguchi Method | ||
Abstract: Submerged Arc Welding (SAW) is considered as a multi-input process. In order to achieve high productivity and quality of weld, it is very difficult to select optimum combination of input process parameters. In this work Taguchi Method is being used for the optimization of input process parameter, which is very simple, fast, robust and convenient. Submerged arc welding (SAW) is a process of overlaying metals by coalescence. The heat required for coalescence is provided by an arc generated between consumable electrode and work-piece. Analysis of SAW process parameter is key point for researcher due to its wide application in heavy welding industry, ship construction, pipeline etc. To set the optimum process parameter is a common problem with SAW for desired response due to its multi input parameter. These parameter are welding current, arc voltage, welding speed, wire feed rate etc. Later response found by the process significantly influence by these parameter. In this work, Submerged Arc Welding is performed on AISI 5130 alloy steel. Responses in terms of depth of penetration and Hardness of welded joint are analyzed. Based on optimization a regression model has been developed for each response. Optimum levels of factors have been identified. The predicted value of levels has been validated by experimental run. Keywords: SAW, Taguchi, Response Surface Method, Depth of Penetration, Peak Temperature. References:
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7. |
Authors: |
Aayush Bhardwaj, Deepak Yadav, Manik Mittal | |
Paper Title: |
Alcohol Detector with Auto Ignition off System | ||
Abstract: Technology always helps the mankind to make their life comfortable. So beside comfortable it is very important to think about safety also. We need to think to make the roads safer. Present situation of India is that the numbers of road accidents are increasing day by day. By the survey it has been recorded that total number of road accidents followed by cars, jeeps and taxis (23.6 percent), trucks, tempos, tractors and other articulated vehicles (21.0 per cent), Buses (7.8 per cent), Auto-Rickshaws (6.5 per cent) and other motor vehicles (2.8 per cent) [1].The roads of the states are not safe due to people do reckless driving or over speeding after drinking alcohol. So to make a step forward we make a device that is “Alcohol detector system with auto ignition off”. It consist of Alcohol gas sensor which sense the presence of alcohol, Arduino UNO which is a microcontroller board, Buzzer and LED light for indication of presence of alcohol. Immobilizer device is used to cut off the ignition of an automobile. It is a device that will be fitted in the four wheelers so that the person who is sitting on the driving seat will not be able to drive the car if he is drunk. This system will decrease the peak of graph of road accidents. The Community against Drunken Driving (CADD) said nearly 70% of all fatalities are due to drunken driving. By implementing the product in the automobile sector, it makes the roads very safer than before. It saves the life of the person who is on driving seat as well as the other person who is walking or driving on the same road. It will become the boon for the entire mankind. Keywords: Arduino Uno, Alcohol Gas Sensor (MQ3), Relay References:
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8. |
Authors: |
Adarsh Kumar, Manik Mittal | |
Paper Title: |
Intelligent Household Water Storage Tank Filling System | ||
Abstract: Technology has always played a vital role in making human’s life easier. Here is a new and innovative way of filling household water storage tanks. The current situation is in the areas of the municipal corporation, water supplies are regulated to some stipulated time. One has to be present at home at that time to store water in the water storage tank by manually switching on their water pumps. People living in the areas with 24/7 water supplies usually forget to switch off their water pumps which lead to water overflow. This causes wastage of water as well as electricity. According to Hindustan Times Municipal corporation of Delhi (MCD) is serving to more than 19 lakhs water connections in Delhi which is increasing day by day. The Rapid growth in population demands more connections which can lead to more wastage of water and electricity. This method is an automatic and simple solution of eliminating two different types of problems. Firstly, it will eliminate the human need and will sense the water supply with the help of water presence sensor in pipe line from the municipal corporation. After sensing the water supply it will switch on water pump with the help of a 240 Volt relay connected to Arduino UNO R3 development board. With the help of water level indicator, it will judge the level of water in a tank. After filling the water tank completely Arduino UNO will turn off the water pump using the same 240-volt relay. This will save water and electricity. Keywords: Arduino UNO R3, 240-Volt Relay, Water Pump, Water Sensor, Rain Drop Module. References:
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9. |
Authors: |
Alok Soni, Pankaj Sonia | |
Paper Title: |
Synthesis and Dynamic Mechanical Analysis of Hybrid Reinforced Polymer Nano-Composites | ||
Abstract: The reinforcement of nano-particles is much better than macro range particles on the basis of mechanical property of polymer composite. Some researchers work with single category nano-particle and some used more than two or hybrid composition. Nano-particles are reinforced by weight percents and at random orientations to see the effect of reinforcement on hybrid polymer matrix. The present study of this research is to see combine result of two type Alumina profile nano-particles polymer with epoxy resin; which is prepared of hybrid polymer nano-composite matrix as per in-situ polymerization technique. In-situ techniques contain whole processes to fabricate the hybrid composite. Al2O3 particles have been used to reinforce in epoxy resin with different weight percentage of 0.25%, 0.5% and 1% and made hybrid polymer composite. DMA (Dynamic Mechanical Analysis) for 3 point bending testing for microscopic structure analysis is done. Keywords: DMA (Dynamic Mechanical Analysis) References:
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10. |
Authors: |
Aneesh Kumar | |
Paper Title: |
Investigation of Metal Matrix Composite Obtained Through Powder Metallurgy for its Dependence of Surface and Bulk Property on Particle Size and Their Distribution | ||
Abstract: The rule of mixture (ROM) can be the very initial approximation of the physical properties of composite materials, which accounts for the contribution of weights of constituent phases of composite. However, this approach may even sometime fail to depict the performance of composites with micro-structural description that cause a size effect in or create anisotropy of the regarded property. It is extensively acknowledged that the contribution of particles as well as their size with the volume fraction, the shape and the connectivity of the constituting phases has significant effects on the mechanical properties of composite. In this regard, the knowledge in variation of physical properties with the type and fraction of filler particles, the efficient and purpose of composite can be defined precisely. Keywords: Metal Matrix Composite; Particle Size; Particle Distribution; Density; Hardness. References:
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11. |
Authors: |
Animesh Nanaware, Vishal Yadav, Karan Paradkar, Jayashish Pandey | |
Paper Title: |
Gas Emission Control Silencer | ||
Abstract: Air pollution due to automobiles is a topic of major concern in the world today. Exposure to air pollution can lead to respiratory and cardiovascular diseases, cause for 620,000 early deaths in 2010 in India which is estimated by The Central Pollution Control Board of India (CPCB). The recent incidents in Delhi and other major cities suggest that most of them fail to meet WHO guidelines for safe levels. Gas Emission Control Silencer (GECS) provides an effective way to overcome this problem it contains two compartments, first filled with Activated Charcoal and second with Urea treated perforated metal sheet. The activated charcoal adsorbs the un-burnt hydrocarbon, carbon oxides; while the Urea treated perforated metal sheet converts nitrogen oxides into di-nitrogen and water by Selective Catalytic Reduction (SCR). The Activated charcoal is highly adsorptive so it reduces Carbon Oxides by 10% - 12%; while the SCR by urea alone can achieve nitrogen oxide reductions up to 90% also it helps in reducing hydrocarbon and carbon monoxide emission by 50% - 70 %. Summarizing the GECS using two compartments results in minimizing the harmful emissions and will be a step towards clean future. Keywords: Gas Emission, Activated Charcoal, Selective Catalytic Reduction (SCR), Emission Control. References:
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12. |
Authors: |
Ashutosh Mishra, Priya Tripathi, Abhinav Anand Sinha | |
Paper Title: |
Implementation of Flywheel Driven Supercharger for Low Capacity Motorbikes Engines to Improve Performance with Low Exhaust Emission: A Review | ||
Abstract: It is always desired to achieve both improved power output and low exhaust emission. Nowadays, air pollution and high consumption rate of fuel cause major effect on our environment. Vehicles have major contribution in the air pollution and generate undesirable emissions (unburnt hydrocarbons, oxides of carbon, oxides of nitrogen, oxides of sulphur and solid carbon particulates) due to improper combustion of fuel as well as inefficient engines are responsible of high consumption rate of fuel. Air pollution and consumption rate of fuel can be reduced by a method of supplying air/air-fuel mixtures higher than the pressure at which engines naturally aspirates , by a boosting device is called the supercharging. This is done by a device which is known as Supercharger. It consists of compressor which may be crankshaft driven , exhaust turbine or electric motor driven to increase density of air. In present time, Heavy commercial vehicles, SUVs, cars and high capacity bikes are equipped with this technique but low capacity motorbikes(150-400cc) are not provided with this technique of supercharging. It is well known, low capacity motorbikes has also contribution in consumption of fuel and undesirable exhaust emission due to non-stoichiometric mixture .This paper is relative to the implementation of supercharging technique in low capacity engines(150-400 cc) which is driven by flywheel of engine to improve performance, exhaust emissions and efficiency of engines. Keywords: Exhaust Emissions, Naturally Aspirates, Boosting Device, Supercharging, Non-Stoichiometric Mixture, Flywheel. References:
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13. |
Authors: |
Avdhesh Kumar Sharma, Gaurav Bhardwaj, Bharat Singh | |
Paper Title: |
Experimental Investigation for Optimization of Process Parameters of EDM for Titanium Grade 5 Alloy [TI6AL4V] using Taguchi Method and Promethee Method | ||
Abstract: The Electrical Discharge Machining (EDM) is one of the most common and most accepted non-traditional machining process used. The work-piece material selected in this experiment is Titanium Grade 5 Alloy [Ti6Al4V] taking in to account its wide usage in industrial application. The high strength and stiffness of Titanium Grade 5 Alloy leads to improve tensile shear and flexural properties. The variable parameters are peak current, pulse on time, and pulse off time and gap voltage. On the basis of PROMETHEE matrix and TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) methodologies for four factors with three levels of each factor, we have selected L9. ARRAY for DOE (Design of Experiments) to be carried out for knowing the TWR and MRR the effect of the variable parameters mentioned above upon machining characteristics such as MRR and TWR is studied and investigated. The tool material is COPPER CADMIUM. Keywords: Electric Discharge Machining, Tool Wear Rate, Material Removal Rate, Peak Current, Flushing Pressure. References:
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14. |
Authors: |
Devarsh Patel, Manthan Parmar, Nishant Dhengre | |
Paper Title: |
Improvement of Plant Layout using Systematic Layout Planning (SLP) | ||
Abstract: The aim of this research is to study and increase the efficiency of plant for a food processing industry. The purpose is to study the present layout of the processing plant, categorizing its flaws and strengths to implement the productive and ideal layout assessed by SLP procedure, in place of the current layout. The essential data would be acquired. The thorough study of existing layout such as flow of material, operation process chart has been investigated. The number of equipment, travelling area, area occupied by various machines, time taken by processes and bottleneck operations has been analyzed. Keywords: Plant Layout, Systematic Layout Planning (SLP). References:
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15. |
Authors: |
Love Kishore Sharma, Dilip Gehlot, Sandeep Kumar Pandey, Sudha Saini | |
Paper Title: |
Parametric Optimization of S1 Tool Steel in Electrochemical Micromachining using Response Surface Methodology | ||
Abstract: Electrochemical machining (ECM) and electric discharge machining (EDM) processes are the advanced machining processes, which is used to machine electrically conductive and high strength materials which are difficult to cut with conventional processes. It is employed in aeronautical and aerospace industries for blade profiling, micro hole fabrication, etc. Even though ECM provides many advantages like highest MRR, good surface finish, it incurs heavy initial investment and maintenance cost. Parametric optimization is required to obtain maximum amount of machining rate and better surface finish. It also helps to reduce product cost and material wastage. Various techniques are available to optimize the process parameter i.e. RSM, Taguchi, GA. Here response surface method (RSM) is implemented to optimize the input parameters and also find the effect of various input parameters with response. Experiments were conducted with softer tool on hard work material.S1 tool steel is used as work piece material whereas copper electrode is used as tool material since there is no effect of work piece material hardness on the material removal rate.S1 tool steel is used for making chisel, dies for stamping, cold stamping etc. Mathematical relations are developed between input and output parameter after conducting the experiments. Voltage, electrolyte concentration, inter electrode gap and electrolyte flow rate are considered as input parameters where as MRR is the response parameter. Keywords: Box Behkein Design (BBD), Electrochemical Micromachining ECMM, Inter Electrode Gap (IEG), Material Removal Rate (MRR), Response Surface Methodology (RSM). References:
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16. |
Authors: |
Prashant Dixit, T. S. Deshmukh | |
Paper Title: |
CFD Analysis of Free Surface Flow Over Broad-Crested Weir using Volume of Fluid Method | ||
Abstract: The prediction of water surface elevation in open channels is quite important in order to evaluate and determine the side wall heights of structures in open channel systems. At present empirical equations are being widely used for this purpose. In earlier half of 19th century experimental approach was used but it has some drawbacks such as laborious data collection and instrument operation limitation. Moreover the 3D flow behavior or some complex turbulent structure which is the nature of any open channel flow cannot effectively captured through experiments, so in these circumstances, computational approach can be adopted to overcome some of these issues. In comparison to experimental studies computational approach is repeatable, can simulate at full scale, can generate the flow taking all the data points into consideration. The intention behind the present work is to use the simple geometry of the rectangular broad crested weir to test the commercial CFD software ANSYS-CFX with a view to test its feasibility for implementation in more complex open channel flows. In this first the experimental results of Hager & Schwalt’s are validated and then analysis is done for weirs with different. Keywords: CFD, VOF, Volume Fraction, Weir. References:
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17. |
Authors: |
Rajkumar Sharma, Piyush Singhal | |
Paper Title: |
Modeling of Industrial Supply Networks To Make Them More Effective by Handling Disruptions and Uncertainties using MATLAB | ||
Abstract: In ever changing world supply networks are found to be having the utmost aim to meet customer’s demand at the earliest with the optimum network cost. This aim seems to be difficult to obtain because of unavoidable delays and uncertainties in supply chain such as delay in transportation/production, uncertainty in transportation/production, damaging of the product in storage/ transportation, cancelation of backorders, etc. Nowadays, the spans of the networks have been extended to each and every corner of the world. This requires an approach to deal with supply chain complexities and taking appropriate decisions to manage adverse effects of supply chain disruptions. It is evident that researchers address the supply chain disruption issues by using different methodologies such as fuzzy logic, neural networks, genetic algorithm, hybrid (neuro-fuzzy) etc but the risk propensity and its dynamic nature is not appropriately addressed. In this paper an attempt has been made to address uncertainties and delays relevant to food and beverages industries using model predictive control. It is noticed that supply chains architecture can be modeled using eight possible configurations. Step & Impulse response shows possibility to meet all the demands with fewer inventories at different echelons of the network under unseen and unavoidable circumstances. The paper provides an expert system for supply chain managers for taking appropriate decisions at right time at different instances which in turn results in efficient running of supply chains. Keywords: Echelon, Delays, Model Predictive Control Supply Chain References:
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18. |
Authors: |
Rishabh Chhirolya, Yash Gupta, Amit Kumar Paswan, Rishabh Agrawal, Rajkumar Sharma, Piyush Singhal | |
Paper Title: |
Thermo-Physical Characterization of Jatropha-Based Biodiesel | ||
Abstract: The aim of this research paper is to characterize the thermo-physical properties of Jatropha-based bio-diesel. As we all aware that, the petroleum products are limited on earth so there is a requirement to replace petroleum products with a new type of fuel as biodiesel. The Jatropha-based biodiesel has many properties to replace the diesel. Researchers are now engaged in searching of such bio-diesels. Jatropha-based biodiesel has potential to fulfill the future energy demands because agricultural land of India is most suitable for the production of Jatropha trees. Jatropha crop can be easily cultivated in infertile soil and can be harvested in any season. Our farmer can also be trained for efficient production of this crop. Different experiments are performed for Transesterification of Jatropha (Ratanjyoti) during this process. The properties like viscosity, density are determined through Brookfield digital Viscometer. In these experiments a proper mixture of Potassium hydroxide(KOH) and Ethanol(C2H5OH) in a pre-decided contain ratios mixed with Jatropha oil and heated up to 700C for 4 hours. After this process, the solution is left for solidification for two days. Finally we get Jatropha-based bio-diesel and Glycerin as a by-product from the solution. The experiments are performed in the laboratory of Pharmacy Department at GLA University, Mathura. Results obtained after Transesterification of Jatropha oil are tabulated and compared with diesel. It was found that properties of bio-diesel are approximately similar to diesel and are also superior to diesel in some aspects. Keywords: Biodiesel, By-product, Transesterification, Viscosity. References:
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19. |
Authors: |
Samarth Jain, Vinay Rawat, Sanchit Dhami, Vikrant Kumar | |
Paper Title: |
Optimization of Fiber Orientation Angle in Filament Wound Composite Tubes for Maximum Burst Pressure Strength | ||
Abstract: Using netting analysis, the optimum fiber orientation angle comes out to be 54° which neglects the contribution of matrix. In this work however, the analysis of filament wound composite tubes with Carbon T-700 employed as the reinforcing fibers and epoxy resin as the matrix has been done using Mean Field Homogenization theory. The matrix and the fibers are treated as two separate entities with 2 layers of fibers wound on matrix material in -Ɵ and +Ɵ direction. An equivalent homogenous Representative Volume element (RVE) is created using DIGIMAT software which reveals the equivalent properties of the Oriented fibers and Matrix combined using MFH theory. The properties of the newly created RVE are imported into ANSYS where the geometric model of a pipe is already created. Analysis is done for burst pressure of the composite pipe using ANSYS 16.0. The optimum orientation angle using this technique came out to be 45˚. Keywords: Filament Winding, Hoop Stress, Mean Field Homogenization Theory, RVE References:
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20. |
Authors: |
Prince Tandel, Shardul Ghag, Rahul Rajeev, Chandrakant Wani | |
Paper Title: |
Solar Powered Refrigeration using Hybrid Solar Thermal-Photo Voltaic System – A Review | ||
Abstract: The increasing demand for an effective Cooling system which would cater to domestic and Industrial needs had lead the engineers to devise various frugal and non-conventional ways of Refrigeration. This Project aims to design a cooling system which would be powered by a Non-Conventional source of energy which in this case is Solar Energy. Such systems are running in the market currently, but we are working towards Hybridising Solar Energy input systems by including both solar thermal and solar electric aspects to increase the efficiency of the Vapour Absorption Refrigeration system and to make the system as compact as possible. This technology can be used in the areas of low and no energy Zones. These systems are quite in its operation due to less number of mechanical moving components as compared to a Vapour Compression Refrigeration System and are non-polluting. As the objective is clearly understood and various variants of solar refrigerators are reviewed, we will design both Solar thermal collectors and solar Photo Voltaic (PV) units and its combined inclusion in the power supply which depends on our input generator requirement of the system. Hence, this review is on Solar Powered Refrigeration and its components which are focussed on Solar Thermal System and Solar Photovoltaic Systems and inclusion of both these systems to operate the Refrigeration system with maximum efficiency. Keywords: Vapour Absorber Refrigeration System (VARS), Coefficient of Performance (COP), Thermal storage, Solar Collector. References:
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