Thermodynamic and Exergetic Analyses of Power and Cooling Systems
Open access
Peer reviewed
Abstract
Abstract
Reliable and sustainable access to energy continues to pose a significant challenge for rural farms in African underprivileged areas, where traditional diesel generators are both economically and environmentally unfeasible. This research explores the potential of pumped thermal energy storage (PTES) systems utilizing a Rankine cycle for the preservation of farm produce, analyzing four configurations of reversible heat pump–organic Rankine cycle (HP–ORC) systems that employ R1234ze(E) as the working fluid: hot-storage cooled HP mode, air-cooled HP mode, basic ORC mode, and ORC mode with integrated electrical heaters. Despite the exploration of hybrid HP–ORC and reversible PTES configurations in the existing literature, there remains a significant lack of research focusing on their feasibility for energy services in rural agriculture, and the literature data remains insufficient for comprehensive decision-making on deployment for small-scale applications in rural settings. To bridge this gap, the thermodynamic performance was evaluated for the PTES configurations through exergy analysis, to measure system irreversibility and component losses. Also, an exergoeconomic assessment was conducted using the Specific Exergy Costing (SPECO) method, while environmental impacts were examined with Eco-Indicator 99, aimed primarily at decision-making for real-life application. The results indicate that the ORC mode with electric heater achieved the highest exergy efficiency at 31.7%, surpassing the hot-storage cooled HP mode by approximately 11 percentage points. The air-cooled ORC with electric heaters exhibited a thermal efficiency of 26.6% and reduced economic losses, while also demonstrating significantly lower environmental degradation compared to the hot-storage HP mode (1327 mpts/s). These results suggest that air-cooled HP-ORC configurations provide an optimal balance of technical, economic, and environmental performance, thereby promoting sustainable, localized energy solutions for rural agricultural practices.
Direct answer
What can I do from this paper page?
Use this page to scan "Exergy-Based Techno-Economic and Environmental Assessment of Pumped Thermal Energy Storage Systems for Sustainable Rural Agriculture" quickly: start with the summary and abstract, then check the authors, source, topics, and related papers. From here, open Scollr to follow Thermodynamic and Exergetic Analyses of Power and Cooling Systems research, save the paper, or map adjacent work.
Research areas
Follow related topics
Citation
BibTeX
@article{Oweibo2026Exergy,
title = {Exergy-Based Techno-Economic and Environmental Assessment of Pumped Thermal Energy Storage Systems for Sustainable Rural Agriculture},
author = {Eseoghene Oweibo and Modestus Okwu and Joseph Oyekale},
journal = {Energies},
year = {2026},
doi = {10.3390/en19143379},
url = {https://doi.org/10.3390/en19143379}
}FAQ
Using this paper in a discovery workflow
How do I find related work for this paper?
Use the related papers and topic links on this page as starting points. In Scollr, you can also open the paper and build a literature map around its references, citing papers, and related work.
How can I keep up with new Thermodynamic and Exergetic Analyses of Power and Cooling Systems research papers?
Follow Thermodynamic and Exergetic Analyses of Power and Cooling Systems research in Scollr. New papers from the topic flow into a personalized feed, and you can save useful studies to revisit later.
Can I cite this paper from this page?
This page includes a static BibTeX block for Exergy-Based Techno-Economic and Environmental Assessment of Pumped Thermal Energy Storage Systems for Sustainable Rural Agriculture. Always verify the DOI, source, and publication details against the publisher record before submitting a manuscript.
Follow this research in Scollr
Follow the topics and authors behind this paper, save useful studies, and build a literature map when you are ready to go deeper.
Get the app