Hello there,
in some articles they only analyze cost estimation based on the purchase price of the chemical, but this is not a realistic approach. in fact, the analyses we do are laboratory scale and not pilot scale or industrial scale. especially when tio2 is used as a bleaching agent instead of H2O2 in the bleaching industry and this is photocatalytic, their energy balance sheets should also be extracted. In the literature, there is an equation for degradation, degradation is 50 percent and there is an equation made according to pollutent, but unfortunately, I have not come across a bleaching process made on fabric with tio2 bleaching in the literature. I did the energy cost with a wattmeter. Are there any other books etc. that you would recommend for this? Thank you.
To make cost estimation analysis one`s should consider the CapEx value and OpEx Value. Capital expenditures (CapEx) are funds used by a company to acquire, upgrade, and maintain physical assets such as property, plants, buildings, technology, or equipment. CapEx is often used to undertake new projects or investments by a company. OPEX, which stands for operating expenses or expenditure, refers to the costs incurred by your business via the production of goods and services. It can include a broad range of expenses, including materials, labor, machinery, packaging, shipping materials, and so on.
Finally the summation of the CapEX and OpEX value will give you the production cost estimation of your product for a certain time.
Just because something is published in a paper, it does not mean it is useful :-) However, for Academia it is very difficult/unrealistic to do a proper cost calculation.
Here is a list of book, which I can recommend for cost calculations. They are quite old, but give a good explanation how a cost calculation should be performed.
Harry Silla "Chemical Process Engineering - Design and Economis" ISBN: 0-8247-4274-5
Gavin Towler and Ray Sinnott "Chemical Engineering Design - Principles, Practice and Economics of Plant and Process Design ISBN 978-0-08-096659-5
or just google "cost calculation chemical engineering textbook"
Thomas Waluga
Thank you very much for your spot-on determination. I look at the articles where cost analysis is done for hours, but I see that they do not go beyond the chemical price spent. Unfortunately, I could not find a comprehensive study in the literature. it is useful to read the books you mentioned in undergraduate school, but unfortunately it is very difficult to make a factory analysis. Although there are calculation equations for photocatalytic as kwh / pollutant kg as pollutant, it is also interesting that there is no cost analysis in publications using tio2 as bleaching in textiles...
Dear Zeynep,
Cost estimation or techno economic fusibility calculated based on the objectives of the research. For example, there is a direct operating cost (DOC) method that not considered some expenses.
Please check my paper:
https://doi.org/10.1016/j.biortech.2023.129225
Good luck
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