Riffat, James
(2023)
Experimental investigation of an indoor air purification system using an innovative photocatalytic mop.
PhD thesis, University of Nottingham.
Abstract
This thesis presents a comprehensive investigation of "MopFan," a photocatalytic air purification system, with the overarching goal of improving indoor air quality and its broader impacts on public health, the environment, and the economy. Recognising the critical importance of addressing the pressing issue of air pollution, this study delves into various facets of the MopFan technology and its potential for revolutionising the field of air purification.
To lay the foundation for this research, a thorough review of the existing literature on photocatalytic purifiers is conducted, providing a comprehensive understanding of the current state-of-the-art in air purification technology. By analysing the strengths and limitations of previous studies, this review identifies crucial areas for improvement, particularly in the domains of filter design, catalyst selection, and lighting arrangement. By pinpointing these areas, the study aims to contribute to the ongoing efforts to enhance the efficacy and efficiency of air purification systems.
Building upon this literature review, the research explores novel approaches to fibre configuration and coating for anti-virus protection within the MopFan system. Through experimentation and analysis, the study uncovers the significant effectiveness of copper, tampico, and coco fibres in mitigating viral contaminants, offering a promising solution to combat airborne pathogens. This discovery holds immense potential for shaping future strategies in filter design and material selection, opening new possibilities for the development of advanced air purification technologies.
The thesis then proceeds to focus on the practical implementation of the MopFan technology by designing, prototyping, and rigorously testing prototypes. Each prototype represents a significant advancement in air purification capabilities, showcasing the integration of motor-driven fans, specialised mop technology, and enhanced UV light to maximise the removal of airborne pollutants. Through a comprehensive evaluation of these prototypes, the research demonstrates efficacy in significantly improving air quality and reducing the presence of harmful particles in indoor environments.
This research utilised 3D printing technology to create functional prototypes of the MopFan air purification system, focusing on advancements in air purification capabilities. The prototypes were produced using a specialised 3D printer and ABS filament, with the hub divided into sections for individual printing and easy assembly. Precision was achieved through careful adjustment of printer settings, resulting in accurate prototypes. Although the printing process took 12 to 16 hours per prototype, it enabled efficient construction, comprehensive evaluation, and testing.
In addition to the technical aspects, this thesis also delves into the economic and environmental dimensions of the MopFan technology. An economic assessment showcases the potential for job creation and economic growth associated with the widespread adoption and commercialisation of the technology. By highlighting the economic benefits, this assessment serves as a compelling argument for the financial feasibility and further development. Simultaneously, an environmental assessment emphasises the importance of adopting sustainable practices throughout the lifecycle of the technology. It emphasises the need for responsible manufacturing, energy efficiency, and waste reduction, highlighting the imperative of creating environmentally conscious solutions to address air pollution.
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