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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    Parametric optimization of activated-TIG welding of hot rolled steel (IS 5986) using taguchi method
    (G. B. Pant University of Agriculture and Technology, Pantnagar, 2022-10) Rawat, Bharat V.P.S.; Jadoun, R. S.
    The present investigation aims to optimized & develop input parameters for joining of Hot rolled steel using activated tungsten inert gas (A-TIG) welding process. Three combinations of fluxes were prepared to decide suitable flux for Hot rolled steel. The design of experiment was carried out for optimization of welding parameters to achieve the desired depth of penetration. The square butt weld joints were fabricated on 8 mm thick plates employing A-TIG welding using developed flux and optimized process parameters employing single side welding procedure. The Ultimate Tensile testing hardness test and impact tests were carried out on the base metal and weld joint. The strengths, ductility and impact toughness of the joints were found to be comparable with that of the base metal. Gas Tungsten Arc Welding (GTAW), also called Tungsten Inert Gas welding (TIG) is one of the main welding methods which have been widely used in industries for the welding of stainless steel, titanium alloy, and other nonferrous metals for its high weld quality and lower equipment Investment. The major limitation of TIG welding of steel is mainly the limited thickness of material which can be welded in a single pass and that has a lower production rate. Therefore, enhancements in the depth of penetration in weld bead have long been sought in steel weldments produced by TIG welding process. These limitations have been overcome by introducing oxide powders at the joint during the TIG welding process which is called Activated Tungsten Inert Gas Welding (A-TIG). Hot rolled steel is used in a range of automobile products it has excellent forming and welding characteristics. Post-weld annealing is not required when welding thin sections. It has excellent corrosion resistance in a wide range of atmospheric environments and many corrosive media. In the present work, TIG Welding was carried out on Hot Rolled steel plates of 8 mm thickness. In the first phase, the specimens were welded as bead on plate. The Taguchi method is the technique is used to determine the level of influence of the independent variables on the dependent variables. The independent variables have been taken for this study are 5 of welding parameters,viz three different types of flux composition combination of two compound TiO2 And SiO2 flux, three set of welding voltage, welding current, gas flow rate, root gap is used. The dependent variables are tensile strength (TS), Hardness (HR), Impact strength (IS), Depth of Penetration (DP), Bead Width (BW), of the weld morphology are used. The SEM images of the macro structures of weld morphology were compared. The results obtained from the macro structures of weld morphology indicated that the higher depth of penetration has been achieved in the specimens welded with A-TIG welding process when compared with Conventional TIG welding process. The results obtained from the Taguchi, L27 O.A. technique indicated that the activating flux showed the maximum percentage of contribution in weld morphology. In Next phase of this study was to determine the influence of two component fluxes on the weld morphology of A-TIG weldments of Hot Rolled steel plates. The activating fluxes such as TiO2 & SiO2, were applied with different proportions to the specimens. Experimental results indicated that using 60% TiO2 +40% SiO2 flux combination leads to a significant increase in joint penetration and the aspect ratio.
  • ThesisItemOpen Access
    Experimental investigation of thermo- hydraulic performance of rotating packed bed using air-water System
    (G. B. Pant University of Agriculture and Technology, Pantnagar, 2022-04) Sandeep Kumar; Murthy, D. S.
    Rotating packed bed (RPB) has a great potential for process intensification in thermal systems. However, the available literature is only focused on its mass transfer aspects and no study shows its heat transfer aspects. In rotating packed bed, the water flows outwards from the inner eriphery of a rotating rotor by centrifugal action and air travels inwards from the outer periphery by imposed pressure gradient making a counter current interaction with each other. The rotation of the rotor gives control over the water distribution unlike in conventional columns where gravity is the only driving force. In present work, rotating packed bed (RPB) have been explored for process intensification in thermal systems using air-water as working fluids. The thermo-hydraulic performance of rotating packed was carried out considering the air flow rate range varying from 0.007625 kg/s to 0.020175 kg/s, water flow rate varies from 0.033 kg/s to 0.133 kg/s and rotational speed considered is 0-2000 rpm. The thermal performance parameters such as cooling range, approach, water evaporation rate, heat transfer rate, Merkel number, and effectiveness for the RBP were experimentally evaluated for the given airflow rate, water flow rate and water inlet temperature (35, 40, and 45°C) and rotational speed. The optimum result for all the thermal performance parameters was observed at 1200 rpm. At the optimum condition, the observed value of cooling range was 15 ̊C, the value of approach was 12.2 ̊C, water evaporation rate was 0.000904 kg/s, effectiveness was 0.49 and the Merkel number was 0.426. The results were found to be in agreement with CTI (Cooling Technology Institute) performance curve charts, confirming the feasibility of RPBs to be used as thermal systems.
  • ThesisItemOpen Access
    Study on combustion, performance and emission characteristics of water emulsified fuels in C.I. engine
    (G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2022-04) Gautam, Puneet Singh; Gupta, V. K.
    In this investigation, tests were carried out to standardize the constituent levels in order to achieve stable emulsions of aqueous and anhydrous alcohols with diesel fuel using Propylene Glycol Monostearate (PGM), Tween 80 as an emulsifier, and octanol as a coemulsifier. The phase separation and homogeneity of several emulsions were observed at room temperature (28°-34°C) and different temperatures ranges (0°-45°C). The engine's combustion, performance, emission characteristics, and combustion stability were evaluated on selected emulsion fuels on a computerized 1-cylinder, four-stroke, watercooled, direct injection diesel engine of constant engine speed. The engine performance was evaluated in terms of performance parameters such as brake power, brake specific fuel consumption, thermal efficiency, and combustion parameters such as cylinder pressure, HRR, ID, CD, MFB, etc. The emission parameters, CO, CO2, HC, NOx, and exhaust gas temperature, were evaluated. The engine's fuel consumption was found to be higher at all brake loads in case of emulsions selected for experimental investigations compared to diesel. Further, a single zone thermodynamic model was developed to predict the combustion characteristics such as in-cylinder pressure, heat release rate (HRR), using fundamental thermodynamic equations and various models. The success of the thermodynamic model was evaluated by statistical metrics (R², standard error (S), Pearson’s correlation (r), and P-value). The model accurately predicted the numerical results of cylinder pressure and HRR for diesel fuel and E50 emulsion at full loading condition. The statistical analysis of the predicted data by regression method and P-value showed strong evidence of significant data by this model. The mean values of the numerical data lay within 95% confidence interval in regression analysis for diesel at full loading condition.
  • ThesisItemOpen Access
    Experimental investigation of thermo-hydraulic performance of rotating packed bed using air-water system
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2022-04) Sandeep Kumar; Murthy, D.S.
    Rotating packed bed (RPB) has a great potential for process intensification in thermal systems. However, the available literature is only focused on its mass transfer aspects and no study shows its heat transfer aspects. In rotating packed bed, the water flows outwards from the inner periphery of a rotating rotor by centrifugal action and air travels inwards from the outer periphery by imposed pressure gradient making a counter current interaction with each other. The rotation of the rotor gives control over the water distribution unlike in conventional columns where gravity is the only driving force. In present work, rotating packed bed (RPB) have been explored for process intensification in thermal systems using air-water as working fluids. The thermo-hydraulic performance of rotating packed was carried out considering the air flow rate range varying from 0.007625 kg/s to 0.020175 kg/s, water flow rate varies from 0.033 kg/s to 0.133 kg/s and rotational speed considered is 0-2000 rpm. The thermal performance parameters such as cooling range, approach, water evaporation rate, heat transfer rate, Merkel number, and effectiveness for the RBP were experimentally evaluated for the given airflow rate, water flow rate and water inlet temperature (35, 40, and 45°C) and rotational speed. The optimum result for all the thermal performance parameters was observed at 1200 rpm. At the optimum condition, the observed value of cooling range was 15 ̊C, the value of approach was 12.2 ̊C, water evaporation rate was 0.000904 kg/s, effectiveness was 0.49 and the Merkel number was 0.426. The results were found to be in agreement with CTI (Cooling Technology Institute) performance curve charts, confirming the feasibility of RPBs to be used as thermal systems.