LAPSE:2023.36397
Published Article
LAPSE:2023.36397
Optimization Design of an Intermediate Fluid Thermoelectric Generator for Exhaust Waste Heat Recovery
Wei Zhang, Wenjie Li, Shuqian Li, Liyao Xie, Minghui Ge, Yulong Zhao
July 13, 2023
The intermediate fluid thermoelectric generator (IFTEG) represents a novel approach to power generation, predicated upon the principles of gravity heat pipe technology. Its key advantages include high-power output and a compact module area. The generator’s performance, however, is influenced by the variable exhaust parameters typical of automobile operation, which presents a significant challenge in the design process. The present study establishes a mathematical model to optimize the design of the IFTEG. Our findings suggest that the optimal module area sees substantial growth with an increase in both the exhaust heat exchanger area and the exhaust flow rate. Interestingly, the optimal module area appears to demonstrate a low sensitivity to changes in exhaust temperature. To address the challenge of determining the optimal module area, this study introduces the concept of peak power deviation. This method posits that any deviation from the optimal module area results in an equivalent power deviation. For instance, with an exhaust heat exchanger area of 1.6 m2, the minimum peak power deviation is 27.5%, corresponding to a design module area of 0.124 m2. As such, the actual output power’s deviation from the maximum achievable output power will not exceed 27.5% for any given set of exhaust parameters. This study extends its findings to delineate the relationship between the optimal design module area and the exhaust heat exchanger area. These insights could serve as a useful guide for the design of future power generators.
Keywords
intermediate fluid, Optimization, power deviation, thermoelectric generator
Suggested Citation
Zhang W, Li W, Li S, Xie L, Ge M, Zhao Y. Optimization Design of an Intermediate Fluid Thermoelectric Generator for Exhaust Waste Heat Recovery. (2023). LAPSE:2023.36397
Author Affiliations
Zhang W: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832003, China
Li W: Hebei Key Laboratory of Thermal Science and Energy Clean Utilization, Hebei University of Technology, Tianjin 300401, China
Li S: Hebei Technology Innovation Center of Phase Change Thermal Management of Data Center, Hebei University of Water Resources and Electric Engineering, Cangzhou 061001, China
Xie L: Hebei Key Laboratory of Thermal Science and Energy Clean Utilization, Hebei University of Technology, Tianjin 300401, China
Ge M: Hebei Key Laboratory of Thermal Science and Energy Clean Utilization, Hebei University of Technology, Tianjin 300401, China
Zhao Y: Hebei Key Laboratory of Thermal Science and Energy Clean Utilization, Hebei University of Technology, Tianjin 300401, China
Journal Name
Processes
Volume
11
Issue
6
First Page
1853
Year
2023
Publication Date
2023-06-20
ISSN
2227-9717
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Original Submission
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PII: pr11061853, Publication Type: Journal Article
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LAPSE:2023.36397
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https://doi.org/10.3390/pr11061853
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Jul 13, 2023
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