Tapas K Mallick

Tapas K Mallick
University of Exeter | UoE · Department of Renewable Energy

MSc MTech PhD PGCAP FWSSET

About

394
Publications
236,649
Reads
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8,749
Citations
Additional affiliations
June 2015 - September 2019
University of Exeter
Position
  • Academic Lead
February 2013 - present
University of Exeter
Position
  • Chair in Clean Technologies
September 2009 - January 2013
Heriot-Watt University
Position
  • Professor (Associate)
Description
  • Mechanical Engineering

Publications

Publications (394)
Article
Building Integrated Concentrating Photovoltaics (BICPV) is a promising solution leading towards self-sustaining buildings. In this work, we have evaluated the performance of one such system carrying out detailed modelling and indoor experiments. The system has a geometric concentration of 6× and typically consists of a dielectric based Symmetric El...
Article
This paper presents a mirror symmetrical dielectric totally internally reflecting concentrator (MSDTIRC). Here, its electrical and optical performances are investigated for building integrated photovoltaic applications. This concentrator is designed to tackle two issues: (i) providing sufficient gain in order to increase the electrical output of a...
Article
Full-text available
Optical fibres can add interesting possibilities in solar concentrator systems, such as transport of light for remote illumination as well as solar energy conversion. In order to effectively couple light from the sun into optical fibres, the key parameters that control the coupling efficiency should be identified. In this paper, the results of ray-...
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The thermal performance of window glazing requires improvement for a sustainable built environment at an acceptable cost. This work has attempted to develop a smart composite coating that combines photosensitive metal oxide and phase change materials and investigate their thermal comfort performance as a glazed window. Current work demonstrates a m...
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Building’s energy conservation signifies a lowering in building energy consumption without sacrificing thermal comfort. Window glazing is the most suitable approach to the built environment that can be controlled through its sustainable development for global energy consumption. In this work, for the first time, paraffin incorporated SnO2-Al2O3 com...
Article
Five different rare‐earth‐based nanocrystalline high entropy oxides (HEOs) with fluorite structure and average crystallite sizes between 6 and 8 nm are prepared and their photocatalytic behavior toward azo dye degradation and photoelectrochemical water splitting for hydrogen generation is examined. The cationic site in the fluorite lattice consists...
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In Nigeria, the rapid population increase and the overreliance on fossil fuel have created significant environmental, health, political, and economic consequences leading to severe socio-economic drawbacks. These factors have developed a wide gap between energy demand and supply due to insufficient local production, necessitating a clean energy sup...
Article
A Low Concentrating Photovoltaic Thermal system typically employs compound parabolic concentrator to focus sunlight and enhance the quality of both thermal and electrical energy extracted. One of the major issues during this process is the introduction of non-uniform illumination on the photovoltaic panels which can cause hot-spots and significantl...
Article
The performance of solar photovoltaic (SPV) power plants is adversely affected by soiling losses caused by natural dust deposition on the module surface. The size and density of dust particles vary depending on the location. Thus, it is essential to investigate the impact of dust collection on SPV module performance. This work investigates the effe...
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The relative scarcity and high cost associated with indium or fluorine, fabrication approaches surface roughness, and low adhesion to polymeric materials are significant drawbacks for indium tin oxide (ITO) and fluorine tin oxide (FTO)-based transparent conductive oxide (TCO) glasses. TCOs are materials that are conductive and, at the same time, ex...
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The emergence of high-efficiency photovoltaic research is undergoing intense study and is technologically desirable to meet sustainable energy and environmental demand. However, every single solar cell has a theoretical power conversion efficiency limit, and, thus, without compromising the cost, the power conversion efficiency enhancement of a sola...
Article
Phase change material (PCM) has capability to increase the power production of solar photovoltaics (PV) by effective temperature regulation. In this work, Thermal Conductivity Enhancing Containers (TCEC) are proposed. They allow the PCM to extract the heat from all sides of the containers instead of only front which improves the thermal conductivit...
Article
The discharge of chromium effluent from various industries becomes a severe threat to the environment, creating a risk to human health and environmental aspects. In this study, Cr (VI) removal from aqueous solution by adsorption was investigated using commercially available CdS at different concentrations to consider an industrial-level large-scale...
Article
Perovskite solar cells (PSCs) have encountered a fulgurant development in their power-conversion efficiency (PCEs) generation in the drive to provide a facile, cheap and clean source of energy over just a few years. The most efficient PSCs are fabricated using CH3NH3PbI3 (MAPbI3) perovskite. However, being a promising photovoltaic (PV) performance...
Article
The main aim of this work is to propose an integrated optical, thermal and electrical model to obtain the overall performance of a concentrated photovoltaic-thermal system (CPV/T). Monte Carlo ray-tracing (MCRT) simulations are done to obtain the flux profile on the absorber of a compound parabolic concentrator (CPC) for various angles of incidence...
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The intermittent nature of renewable sources, such as solar and wind, leads to the need for a hybrid renewable energy system (HRES) that can provide uninterrupted and reliable energy to a remote and off-grid location with the use of a biogas generator and battery. In the present study, conventional PV panels have been integrated with phase change m...
Article
This article investigates the discrepancy between the theoretical and the experimental optical characterisation results of a Fresnel Lens - silicon on glass (SOG), as a primary optical component toward UHCPV of >3000 suns design (Shanks et al., 2018). All the equations were elaborated for single- and multi-junction solar cells, emphasising the perf...
Article
Since its discovery, the dye-sensitized solar cell (DSSC) technology with its low-cost, simple fabrication procedure and promising photovoltaic (PV) performance remains a fertile research topic. Most DSSC research is focused on the TiO2, ZnO and other binary metal oxides based photoelectrodes and costly platinum (Pt) based counter electrodes (CEs)....
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In this paper, a novel cost-effective demand side management and peak power shaving have been demonstrated by optimized scheduling of renewable energy source integrated grid connected hybrid microgrid and vanadium redox flow battery (VRFB) storage. To promote the waste to energy for the rural and urban communities, the biogas energy source is integ...
Article
The photovoltaic (PV) system's performance suffers from intensifying external factors such as soiling, particularly in arid and semi-arid regions with massive solar energy potential. Mitigation techniques are one of the crucial factors to prevent and restore PV performance. Therefore, in this study, five cost-effective mitigation techniques such as...
Article
Photovoltaic performance is significantly affected by soiling on its covering surface, which is strongly influenced by its tilt angle. This raises concern for the potential investor, policymakers, engineers, and local populace in regions where the soiling rate and its potential threats remain relatively unexplored. This study investigated the effec...
Article
The photovoltaic device's economic and environmental merits have made it the most suitable clean energy alternative to help developing countries achieve the SDG-7. However, the low efficiency of the device, which is undergoing massive study across the globe, there is another omnipresent factor, such as surface soiling that has a deleterious effect...
Article
High concentrator photovoltaic is expected to play an increasingly important role in electrical energy production. Controlling Multijunction solar cell temperature within the recommended conditions is a key challenge that limits the functionality of this growing technology making the identification of an efficient cooling method an essential requir...
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Solar energy is going to be a major component of global energy generation. Loss due to dust deposition has raised a great concern to the investors in this field. Pre-estimation of this reduced generation and hence the economic loss will help the operators’ readiness for efficient and enhanced economic energy management of the system. In an earlier...
Article
We have investigated the insights of photo-physical surface characteristics for Ru (II) polypyridyl dye (N719) sensitization and its performance in dye-sensitized solar cells (DSSCs) at different temperatures of ZnO-based photoanodes. The maximum power conversion efficiency of 2.25% with a high open-circuit voltage of 0.87 V was recorded for 40 °C...
Article
Polymer dispersed liquid crystal (PDLC) is an electrically switchable smart window, that can provide privacy and control solar radiation, resulting in a potential energy saving. The optical properties of the PDLC window can be altered from translucent to transparent when an alternating current power supply is applied. However, little attention has...
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Metamaterials, an artificial periodic two- or three-dimensional configuration, can change propagation characteristics of electromagnetic waves (i.e., reflection, transmission, absorption). The current challenges in the field of metamaterial coatings are their manufacturing in a large-scale and large-length scale. There is a clear need to enhance pr...
Article
3D porous, thin sheet-like rGO aerogel was fabricated to explore its antimony (Sb) removal potential from wastewater. Langmuir isothermal and pseudo-second-order kinetic model best-suited the adsorption process. The maximum adsorption capacities were 168.59 and 206.72 mg/g for Sb (III and V) at pH 6.0 respectively. The thermodynamic parameters desi...
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The cover picture demonstrates the origin of environmental water pollution causes happening from a wide variety of industrial operations and anthropogenic activities. Particularly heavy metal ions containing wastewater from these proceedings specifically, textile industrial effluent generate unfavourable impact on the aquatic environment and severe...
Article
The harvesting of electrical energy from sunrays with low cost, clean form and prosperity is an excellent progression. In this context, significant advancement has been made in the solar energy area in terms of cell's design to enhance efficiency. Light scattering may benefit solar cells in this aspect by extending the travelling distance of light...
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High temperature and overheating of photovoltaic panels lead to efficiency losses and eventual degradation. For solar PV systems, this is a significant impediment for achieving economic viability. In this study, a novel Window-Integrated Concentrated Photovoltaic (WICPV) system is proposed for window integration. This offers high (50%) transparency...
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As an excellent heat spreader candidate, graphene attracts considerable interest concerning its application in concentrated photovoltaic (CPV) systems. The consequences of employing a graphene-coated neutral density (GCND) filter to mitigate concentrated light impact adequately. Hence, the temperature for a concentrated photovoltaic system is repor...
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Semi-transparent Building Integrated Photovoltaics provide a fresh approach to the renewable energy sector, combining the potential of energy generation with aesthetically pleasing, multi-functional building components. Employing a range of technologies, they can be integrated into the envelope of the building in different ways, for instance, as a...
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Metal halide perovskite solar cells (PSCs) are considered an effectual way to enhance photovoltaic (PV) properties, leading to low-cost and high efficiency. PSCs have experienced rapid improvement in the last ten years. The device’s energy production increases extensively in the presence of concentrated light. The use of concentrated optics in sola...
Article
Nowadays, thermal energy storage using Phase Change Materials (PCMs) receives a great interest due to its high energy storage density especially for low and medium temperature storage applications. Nevertheless, PCM suffers from the low thermal conductivity during the charging and discharging of heat. In this study, the multiple PCM technique has b...
Article
A novel concentrating photovoltaic curtain wall (CPV-CW) system integrated with building has been designed, tested and analyzed, and its application potential is determined and improvement suggestions are proposed. It can effectively improve the efficiency of photovoltaic (PV) module and provide a more uniform indoor lighting environment. The conce...
Article
Since innovation, different dye‐sensitized solar cells (DSSCs) have endeavored with additional components to escalate the efficiency, cost‐effectiveness and long‐term stability. Various approaches have been executed to reduce the amount of costly platinum (Pt) used in DSSCs and/or to explore cheaper alternatives to Pt. In this work, cheaper element...
Article
Full-text available
Textile wastewater heavy metal pollution has become a severe environmental problem worldwide. Metal ion inclusion in a dye molecule exhibits a bathochromic shift producing deeper but duller shades, which provides excellent colouration. The ejection of a massive volume of wastewater containing heavy metal ions such as Cr (VI), Pb (II), Cd (II) and Z...
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Low concentrating photovoltaic (LCPV) system has been studied extensively, which showed excellent potential for the building integration application. However, such a system suffers from higher operating temperatures due to the concentrated light exposed into the solar cell. In this work, two different methods have been used to regulate the operatin...
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Natural source derived carbon materials make them ideally suited alternative to costly Pt counter electrode for their good catalytic activity, resistance to iodine corrosion, and high stability of the device. Apart from the extensively acclaimed photoanode TiO2, BaSnO3 (BSO) has been projected as an efficient alternative to it. In this study, remar...
Article
A polymer gel electrolyte (PGE), using poly(styrene-co-acrylonitrile) (SAN) as a gelator, 1-butyl-3-methylimidazolium iodide (BMIMI) as the ionic liquid, and lithium iodide (LiI) as a source of iodide ions, is synthesized and investigated for its performance while employing it in a quasi-solid-state dye-sensitized solar cell using a N719 sensitizer...
Article
COVID-19 transmission in London city was discussed in this work from an urban context. The association between COVID-19 cases and climate indicators in London, UK were analysed statistically employing published data from national health services, UK and Time and Date AS based weather data. The climatic indicators included in the study were the dail...
Article
Concentrating photovoltaic-thermal (CPVT) technology harnesses solar energy by increasing the solar density upon cells using optical concentrators. CPVT systems are the focus of ongoing research and improvements to achieve the highest potential for energy harnessing and utilization. Increasing the concentration ratio for high energy generation rais...
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Dual temperature coefficients characteristics are introduced for ambient carbon-based perovskite solar cell in the temperature window of 5 °C to 75 °C, utilising crystal growth via solvent exchange preparation method.
Article
Photoelectrochemical (PEC) water splitting by direct solar irradiation has been considered as a route to produce solar fuel but the technique is impede by limitation of the photocathode materials. Although LaFeO3 photocathode has been identified as a potential candidate for hydrogen generation with excellent stability, however lower current densiti...
Article
High concentrated photovoltaic systems (HCPV) have demonstrated the potential to achieve high conversion power over conventional photovoltaic panels (PV) especially for areas with high solar irradiance. However, the multi-junction (MJ) solar cells may be subjected to damage if the temperature exceeds 110 °C as recommended by the manufacturer. Hence...
Article
In this work, a three-dimensional steady state thermal model is developed for a compound parabolic concentrator of 2× concentration considering the effects of surface radiation and wall conduction. The performance of the compound parabolic concentrator is modeled to obtain the convective and radiative heat loss under the influence of different para...
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India, which has the second-largest population in the world is suffering severely from COVID-19 disease. By May 18th, India investigated ∼1 lakh (0.1million) infected cases from COVID-19, and as of 11th July the cases equalled 8 lakhs. Social distancing and lockdown rules were employed in India, which however had an additional impact on the economy...
Article
Correction for ‘Increasing efficiency of perovskite solar cells using low concentrating photovoltaic systems’ by Hasan Baig et al. , Sustainable Energy Fuels , 2020, 4 , 528–537, DOI: 10.1039/c9se00550a.
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The rapid efficiency enhancement of perovskite solar cells (PSCs) make it a promising photovoltaic (PV) research, which has now drawn attention from industries and government organizations to invest for further development of PSC technology. PSC technology continuously develops into new and improved results. However, stability, toxicity, cost, mate...
Article
It is well known that increasing the concentration ratio of concentrator photovoltaics has a positive impact on the power output of the system but can reduce the solar cells performance due to the heightened temperatures. In this paper, we introduce the impact of using an infrared (IR) filter on the performance of a silicon solar cell as a prelimin...
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Dextran templating hydrothermal synthesis of monoclinic WO3 exhibits excellent specific surface area of ~110 m2/g and a mono-modal pore distribution with the average pore diameter of ~20 nm. Dextran plays a crucial role to generate porosity on WO3. The role of supporting dextran has been investigated and found to be crucial to tune the surface area...
Article
Among all passive methods for photovoltaics (PV) cooling, phase change material (PCM) can be highly effective due to high latent heat capacity. However, very low thermal-conductivity of PCM restricts its potential. The proposed work focuses on the enhancement of rate of heat transfer from PV to PCM by using conductivity-enhancing-containers. The pr...
Article
Recycling optical devices and materials for solar concentrator devices is a relatively unstudied area but one which is likely to grow in importance as we progress towards an increasingly sustainable and minimum waste environment. As such, considerations into major optical flaws are required. Here, we have investigated the durability of a cracked Si...
Article
For low/high concentration, when the distribution of solar radiation is non-uniform over the surface of the solar cell, it gets heated up non-uniformly which affects the electrical output. Thus, in the present work, three dimensional analysis of the solar cells is carried out under non-uniform solar flux. It involves partial differential equations....
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The self-assembling characteristics allow carbon nanomaterials to be a readily explored environmentally benign, solution-processed, low-cost and efficient solar light-harvesting materials. An effort has been executed to replace the regular photovoltaic device’s electrodes by different carbon allotrope based electrodes. Sequential fabrication of car...
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Phase change material (PCM) based passive cooling of photovoltaics (PV) can be highly productive due to high latent heat capacity. However, the low rate of heat transfer limits its usefulness. Thus, the presented work aims at the improvement in PV cooling by using finned PCM (FPCM) heat sinks. In the present study, PCM heat sink and FPCM heat sinks...
Article
Concentrating Photovoltaic technology is a promising option in power generation using the photovoltaics compared to the conventional flat PV system. This study investigates the performance of a high concentrated photovoltaic single solar cell module attached to a multi-layered microchannel heat sink. The system has been tested the first time experi...
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Full-text available
Photovoltaic technology penetration is experiencing noticeable progress. However, its performance is significantly affected by soiling, which is influenced by several factors such as site characteristics, weather, tilt angle and surface orientation, surface material and dust properties. This indoor study investigates the effect of soiling on photov...