http://nopr.niscpr.res.in/handle/123456789/57694 2026-10-09T21:55:17Z 2026-10-09T21:55:17Z Cruz, Daniel Silva Bueno, José de Jesús Pérez Paredes, José Abel López, Arnulfo Terán Vong, Yunny Meas http://nopr.niscpr.res.in/handle/123456789/57704 2021-07-12T11:48:36Z 2021-05-01T00:00:00Z

Title: Portable Vapor-Compression Solar Refrigeration System for use in the Agricultural Harvesting Site Authors: Cruz, Daniel Silva; Bueno, José de Jesús Pérez; Paredes, José Abel; López, Arnulfo Terán; Vong, Yunny Meas Abstract: There is a growing interest in implementing sustainable technologies within reach of the population to cover the need for the rational energy consumption of refrigeration systems. Therefore, this work shows the design and simulation of a cooling chamber, which will be part of a vapor-compression solar cooling system, useful for the agro-industrial sector to conserve perishable products directly at the harvesting site. This portable system uses photovoltaic panels as a source of motive power. The above was developed from the knowledge of the fruit to be conserved for its modeling and subsequent simulation. In this case the fruit is guava. Also, a photovoltaic analysis was carried out. It is possible to obtain a cooling capacity for the chamber of 183.10 W and a heat loss of 6.85 W. Detailed data of the formulas used for designing and simulating the chamber, its isolation calculus, the guavas and their wooden boxes, and the Photovoltaic panels, were provided to clarify the procedure for the proposed prototype. Page(s): 383-390

2021-05-01T00:00:00Z Mehrjooyan, Shaghayegh Sohrabi, Mahmoud Reza Mortazavinik, Saeid http://nopr.niscpr.res.in/handle/123456789/57703 2021-07-12T11:45:41Z 2021-05-01T00:00:00Z

Title: Adsorption of Congo Red from Aqueous Solution using Doped Strontium Hexaferrite – Zero Valent Iron Nanocomposite: Kinetic, Isotherm, and Thermodynamic Studies Authors: Mehrjooyan, Shaghayegh; Sohrabi, Mahmoud Reza; Mortazavinik, Saeid Abstract: This study has dealt with synthesis of doped strontium hexaferrite / zero-valent iron nanocomposite (SrFe12O19/nZVI) and adsorption of Congo Red (CR) dye by the nanocomposite from aqueous solution was evaluated. The adsorbent was characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) analysis and Scanning Electron Microscopy (SEM). Optimization of experimental conditions such as pH, initial concentration of pollutant, adsorbent weight, contact time, and temperature was done. Maximum removal efficiency was achieved at pH of 8.5, initial concentration of CR=20 μg mL-1, adsorbent weight of 0.12 g with 15 min contact time and 25ºC temperature. Langmuir isotherm with R2=0.9959 seems to have best fit to the CR adsorption results. Also, kinetic studies revealed that adsorption of CR was fitted to the pseudo-second-order model with R2=0.9969. In addition, thermodynamic parameters were evaluated. Page(s): 391-397

2021-05-01T00:00:00Z Kasar, Pamreishang Ahmaruzzaman, Md. http://nopr.niscpr.res.in/handle/123456789/57702 2021-07-12T11:43:02Z 2021-05-01T00:00:00Z

Title: Characterization of Liquid Products Obtained from Catalytic Co-Cracking of Polypropylene Waste and Residual Fuel Oil Authors: Kasar, Pamreishang; Ahmaruzzaman, Md. Abstract: The characterization of the liquid produced from the co-cracking of Polypropylene extrusion grade (PPX) and Residual fuel oil (RFO) was carried out using analysis techniques like Gel Permeation chromatography (GPC), Ultimate analysis, Calorimetry analysis, Fourier-transform infrared spectroscopy (FTIR) analysis and Nuclear magnetic resonance (NMR) analysis technique. The resulting liquid from the co-cracking of the two feedstocks in presence of catalyst Zeolite Socony Mobil–5 (ZSM-5) was observed to have high calorific values of 44.084 MJ/Kg comparable to that of the commercial diesel and therefore has the potential to be used as source of renewable fuel. The temperature and catalyst have been found to have positive synergistic effect on the heating value of the liquid product. GPC analysis has revealed that, the liquid obtained from RFO is quite complex, but the complexity is reduced by co-cracking with PPX as suggested by the reduction in the polydispersity index, while the NMR analysis shows that the liquid obtained from the co-cracking was more of aliphatic in nature. The FTIR spectrum obtained from the co-cracking of RFO and PPX both in the presence and absence of catalyst was observed to be a mixed spectrum of their individual component and addition of catalyst had an insignificant effect on the properties of the resulting liquid except in the calorific values which were increased. The spectrum shows that the liquid product was dominated by the presence of alkanes and alkenes. Page(s): 398-403

2021-05-01T00:00:00Z Bhatt, Ekta Gauba, Pammi http://nopr.niscpr.res.in/handle/123456789/57701 2021-07-12T11:40:44Z 2021-05-01T00:00:00Z

Title: Impact of Tetracycline on Basil and its Remediation Potential Authors: Bhatt, Ekta; Gauba, Pammi Abstract: Over the past decade presence of antibiotics in soil and water is a major environmental concern which needs to be address on a priority basis. The present study was done to evaluate the potential of basil (Ocimum basilicum) for phytoremediation. A greenhouse study was conducted for removal of tetracycline from soil. The plants were grown with 200 mgkg−1, 400 mgkg−1, and 600 mgkg−1 of tetracycline for four weeks. Accumulation of tetracycline in shoot and root was observed with HPTLC in plants. They showed a maximum of 97% remediation capability with 200 mgkg−1of tetracycline treated plants. Secondary metabolites were lepoxygenase pathway products in stress condition. The same were analyzed by GCMS. Alpha-terpineol and methyl acetate completely degraded in all samples, while they were present in plants grown without tetracycline. This could be because antibiotic treatments impact the production of lipoxygenase pathway products, while in some cases secondary metabolites increase marginally as the tetracycline concentrations increased. The aim of the current work was the use of plant-based system for phytoremediation and toxicological impact of tetracycline on basil. Page(s): 404-413

2021-05-01T00:00:00Z