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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
    Investigation on the melting performance of phase change material in a horizontal modified shell and tube thermal energy storage using longitudinal fins
    (G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2022-03) Baldev Kumar; Verma, Prashant
    Energy conversion is an essential aspect of technology advancement, and hence its efficient generation and use are important in today's scenario. In present scenario, there is a large gap between demand and supply, and it is difficult to meet the current energy requirement. Thermal energy storage devices enable us to attain energy demand while simultaneously minimizing pollution. This modified geometry having semi-circular shaped shell with finned tube has not been studied much for the melting performance of the phase change material in recent available literature. Hence it has been decided to investigate the melting performance of PCM numerically and experimentally for semi-circular shell having finned tube latent heat thermal energy storage (LHTES) system. Enhancement of melting performance of lauric acid in a semi-circular shell with three longitudinal fins attached to the inner tube has been done for a two-dimensional numerical model in Ansys fluid fluent. The temperature obtained at different locations of shell from the numerical data has also been validated with experimental results. Since the phase change materials have low thermal conductivity so adding fins is one of the effective performance enhancement techniques used in the analysis to enhance the melting rate. Therefore, three different fin arrangements at different fin angles (= 60º, 90º, 120º) have been investigated for the melting performance of the PCM. It has been found that the melting rate of PCM for fin angle of 90º is higher, as compared to other fin arrangements. PCM melting performance is also investigated for different values of inlet temperature of heat transfer fluid for fin angle of 90º. It is observed that on increasing the Stefan number improves the melting rate of PCM in the semi-circular shell finned tube LHTES system. The results for a semi-circular shell with a fin angle of 90º for the LHTES system are found better as the thermal energy storage rate of finned tube LHTES system is 0.27 kW, which is 68.75 % higher as compared to an un-finned tube LHTES system. The semi-circular shell with finned tube LHTES melts the PCM completely in 1800 seconds (30min) which is 34.78 % less in time than the un-finned tube LHTES system. The thermal energy stored in PCM for the shell with finned tube LHTES system is 409.32 kJ, which is 11.06 % more than that of un-finned tube LHTES for the same time duration of 2700 sec. The thermal energy storage efficiency of semicircular with finned tube LHTES unit has been found 7 % higher than that of un-finned tube LHTES.