Faculty Publications
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Item Phase change materials in chemical and process engineering(Elsevier, 2023) Chavan, S.; Manickam, M.; Arumuga Perumal, A.P.; Gumtapure, V.This chapter is concerned with phase change materials in chemical and process engineering. Industrial waste heat recovery is explored as a source of heating and cooling with the application of phase change materials, which is well known. Consequently, heat transformation technologies are presented in detail along with their technical and economic potentials. Initially, utilization of phase change materials in process industries is discussed, which covers on-site and off-site industrial applications. The concept of on-site and off-site thermal energy utilization is well defined. The large amount of industrial waste heat is generated, which can be stored in the phase change materials, and it can be transported to the place where there is energy requirement in particular. Industries such as metal manufacturing, nonmetal manufacturing, chemicals and chemical products, pulp, and food processing industries are the main focuses of the present study. All the technical aspects are discussed in detail with respect to the future scope of phase change materials with thermal energy storage systems. Thermal energy utilization using phase change materials for chemical process industries also has great potentiality for various applications such as thermal fluid heating systems, gas-fired systems, and solar heating systems, which are also discussed. A comprehensive study has been carried out for potential usage of phase change materials for various manufacturing and process engineering applications. © 2023 Elsevier Ltd. All rights reserved.Item Cooling packing and cold energy storage(Elsevier, 2023) Chavan, S.; Manickam, M.; Arumuga Perumal, A.P.; Gumtapure, V.This chapter is divided into two parts: first part discusses about cooling packing applications of phase change materials, and second part discusses about cold thermal energy storage application of PCM. Consequently, methods of thermal energy storage are briefly explained, specifically for cooling packing applications along with present challenges of the technology. The second part of the chapter discusses in brief about cold thermal energy storage specifically basic working principle, loading of cold thermal energy storage for operational purposes CTES in selecting and characterizing storage media, water versus ice thermal energy storage, PCM used for cold thermal storage, advantages, disadvantages, and finally, battery thermal management system in electric vehicle are discussed in brief with updated knowledge in the field of real-time application. © 2023 Elsevier Ltd. All rights reserved.Item Numerical and experimental analysis on thermal energy storage of polyethylene/functionalized graphene composite phase change materials(Elsevier Ltd, 2020) Chavan, S.; Gumtapure, V.; Arumuga Perumal, A.P.The main driving force behind the present work is environmental issues caused due to the usage of plastics, and energy issues. Current work attempts to address these problems by converting recycled plastics into thermal storage materials (TSM). Unfavorable thermophysical properties of plastic make it impractical but these inadequacies can be amended by blending with additives of superior thermophysical properties like, functionalized graphene. Numerical and experimental analysis are carried out to assess the thermal performance of TSMs (LLDPE, CPCM-1, CPCM-2 and CPCM-3) and check the compatibility of the materials. The phase change temperature of TSM is 123 to 125 °C and heat of fusion is 71.95 to 97 kJ/kg. Several thermal characteristics are analyzed to assess thermal performance and the amount of heat energy supplied, rate of heat transfer, and heat storage efficiency are deliberated. Results shown energy level enhancement of 43.17, 50.42, 54 and 50.61% for LLDPE, CPCM-1, CPCM-2 and CPCM-3 respectively. Among the TSM CPCM-2 shows relatively better storage capability (54% enhancement) due to incorporation of optimum concentration of enhancing material. The solidification process takes place through convection and radiation mode of heat transfer, at the completion of solidification process the TSM energy content reduces to 97.5, 96, 96 and 96% for LLDPE, CPCM-1,CPCM-2 and CPCM-3 respectively. This work concludes that, recycled plastics can be blended and it can be converted into efficient thermal storage material. © 2019 Elsevier Ltd