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 Preparation and characterization of nanoparticle blended polymers for thermal energy storage applications(American Institute of Physics Inc. subs@aip.org, 2019) Chavan, S.; Gumtapure, V.; Arumuga Perumal, D.A.This paper is concerned with the comprehensive procedure of preparing, morphological characterization and thermal property evaluation of nanoparticle blended polymer composites. Polymer composites are intended to consecrate the thermal energy storage applications. Linear low-density polyethylene (LLDPE) is incorporated with functionalized graphene with different concentrations (1, 3 and 5%). The morphological study revealed compatibility of polymer composites, at lower concentrations (1-3%,) it shows homogenous dispersion, but above threshold limit the particle distribution is non-homogenous with coarse surface structures. Higher concentration (5%) of nanoparticles emulsifies the molecules and generates micelles between themselves. The thermal conductivity of the polymer composite is significantly enhanced with the reduction of specific heat. At lower concentrations polymer exhibits homogeneous dispersion and the interfacial interaction is comparatively higher, optimal concentration (3%,) of nanoparticle provides favorable results and hence polymer composites with ideal concentration can be utilized for thermal energy storage applications. © 2018 Author(s).Item A review on thermal energy storage using composite phase change materials(Bentham Science Publishers, 2018) Chavan, S.; Gumtapure, V.; Arumuga Perumal, D.A.Background: This paper intends to provide the elementary understanding about the development of thermal energy storage systems. Reviews of storage system performance are carried out from various characterization studies, experimental work, numerical investigations and patents. Several techniques employed to enhance the thermal performance have been reviewed and discussed. Composite phase change materials are the best alternative to achieve the cost feasibility in thermal energy storage systems without compromising the storage capacity. Objective: The purpose of this study is to give an outline and history of the thermal energy storage systems and enlighten the techniques used for storage density enhancement without significant modifications in the design. Methods: In this study, three methods such as, characterization studies, experimental work, numerical investigations and patents. It also addresses many research articles and recent patents on the thermal storage systems, various techniques adopted and applications of such systems. Results: Composite phase change materials are the best alternative to achieve the cost feasibility in thermal energy storage systems without compromising the storage capacity. Carbon based nanoparticles show excellent properties in the composite phase change materials. Conclusion: Composite phase change materials have greater potential for thermal energy storage applications and especially carbon-based nanoparticles like graphene, graphene oxide, carbon nanotubes, fullerene, graphite, graphite oxide, extracted graphite etc., are greatly enhancing the thermo-physical properties of composite phase change materials. Combination of paraffin-based phase change materials and carbon-based nanoparticles can be used for the future thermal energy storage applications. © 2018 Bentham Science Publishers.Item Performance assessment of composite phase change materials for thermal energy storage-characterization and simulation studies(Bentham Science Publishers, 2021) Chavan, S.; Gumtapure, V.; Arumuga Perumal, D.Background: The present study mainly focuses on the development of new Thermal Storage Materials (TSM) and compare the performance for thermal energy storage capacity. Linear Low-Density Polyethylene (LLDPE) based Composite Phase Change Materials (CPCMs) is prepared, and its properties are analyzed using characterization, analytical calculations, and numerical simulation meth-ods. The composites are prepared by blending the functionalized graphene nanoparticles (1, 3 & 5%) with three different concentrations into LLDPE. All three CPCMs show enhanced thermal performance compared to the base material, but it is noticed that higher concentrations of nanoparticles increase the dynamic viscosity and produce an adverse effect on thermal performance. Thermal characterization shows improved latent heat capacity with nanoparticle concentration, analytical and numerical results also compared, which shown a difference of 10 to 25%. Objective: The purpose of this study is the development and evaluation of the thermal storage capacity of different thermal storage materials and enlighten the techniques used for characterizing the storage materials. Methods: Composite material preparation is carried out by using twin-screw extruders, characterization of developed material is done through FTIR, SEM, and DSC analysis. For complete analysis character-ization, analytical calculations and numerical simulation methods are used. Results: Linear low-density polyethylene-based composite materials can be successfully developed using a twin-screw extruder. This extrusion provided proper dispersion of nanoparticles into the base material, and it is validated by SEM analysis. DSC analysis confirmed the enhancement in the thermo-physical properties of composite materials. Conclusion: The latent heat capacity increased around 20% during the heating cycle and reduced ap-proximately 23% during the cooling cycle for base material and 5% addition of nanoparticle, respec-tively. The comprehensive study accomplishes that the optimum concentration of nanoparticle provides better thermal performance for thermal energy storage applications. © 2021 Bentham Science Publishers.