Rotational Optimization for Thermal and Renewable Energy Recovery (ROTAR): A Scalable Framework for Decentralized Energy Generation and Efficiency Enhancement

Rotational Optimization for Thermal and Renewable Energy Recovery (ROTAR): A Scalable Framework for Decentralized Energy Generation and Efficiency Enhancement | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 2 June 2025 V1 Latest version Share on Rotational Optimization for Thermal and Renewable Energy Recovery (ROTAR): A Scalable Framework for Decentralized Energy Generation and Efficiency Enhancement Author : Arsh Jha 0009-0009-4767-8226 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.174890230.09899357/v1 237 views 138 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Cooling tower fans are critical components in power plants, industrial facilities, and data centers, operating continuously to maintain optimal temperature regulation. With an estimated 100,000 cooling towers worldwide housing millions of fans, these systems consume approximately 500 terawatt-hours (TWh) of electricity annually, representing about 2% of global electricity consumption-sufficient to power entire nations such as Argentina or the Netherlands. ROTAR-Rotational Optimization for Thermal and Renewable Energy Recovery-investigates the feasibility of integrating a belt-driven generator motor within the drivetrains of electric vehicles (EVs), employing architectures similar to those of rotational modules within cooling towers to convert rotational energy into usable electrical power. A scaled prototype was developed in which a secondary motor, driven by the primary axle through a belt mechanism, generates direct current (DC) that is stabilized using a buck-boost converter before being stored in a reserve battery following continuous rotation above a specified threshold. Experimental data demonstrate that during a 20-minute drive cycle, the system recovers 0.2 watt-hours (Wh) of energy, resulting in a 7.91% enhancement in energy efficiency. Over a series of twelve 20-minute drive cycles, the system has the capability to fully recharge a single battery (2.53 Wh). When projected to the average annual driving duration of a typical American, this translates to potential energy savings of 219 Wh, equivalent to 86.56 complete battery cycles per year. As a prototype for industrial-level cooling systems, ROTAR represents a significant advancement in the future of regenerative energy with large-scale global impacts. Supplementary Material File (official rotar paper (1).pdf) Download 2.52 MB Information & Authors Information Version history V1 Version 1 02 June 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords belt driven generator cooling tower optimization energy conversion and sustainability regenerative power rotational energy Authors Affiliations Arsh Jha 0009-0009-4767-8226 [email protected] North Carolina School of Science and Mathematics, North Carolina View all articles by this author Metrics & Citations Metrics Article Usage 237 views 138 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Arsh Jha. Rotational Optimization for Thermal and Renewable Energy Recovery (ROTAR): A Scalable Framework for Decentralized Energy Generation and Efficiency Enhancement. Authorea . 02 June 2025. DOI: https://doi.org/10.22541/au.174890230.09899357/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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