Evidence map›Paper›PMID 40478032›Full record

ArticleCase studies in thermal engineering2022

A case study on development of thermodynamic entropy measuring device and its implication on the human body.

Selvakumar Pandiaraj, Kumaresan Govindasamy, Anand Pandey, Chandrakant Sonawane, Ali Jawad Alrubaie, Ali Majdi, Mohamed A Mohamed, Mustafa Musa Jaber, Suresh Muthusamy, Hitesh Panchal

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Article in Case studies in thermal engineering, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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10 authors.

Selvakumar PandiarajDepartment of Mechanical Engineering, Kongu Engineering College (Autonomous), Perundurai, Erode, Tamil Nadu, India.
Kumaresan GovindasamyDepartment of Mechanical Engineering, Bannari Amman Institute of Technology (Autonomous), Sathyamangalam, Erode, Tamil Nadu, India.
Anand PandeyMechanical Engineering Dept, Symbiosis Institute of Technology, Symbiosis International (Deemed University), Pune, India.
Chandrakant SonawaneMechanical Engineering Dept, Symbiosis Institute of Technology, Symbiosis International (Deemed University), Pune, India.
Ali Jawad AlrubaieDepartment of Medical Instrumentation Techniques Engineering, Al- Mustaqbal University College, 51001, Hilla, Iraq.
Ali MajdiDepartment of Building and Construction Techniques Engineering, Al- Mustaqbal University College, 51001, Hilla, Iraq.
Mohamed A MohamedDepartment of Medical Instruments Engineering Techniques, Al-Turath University College, Baghdad, 10021, Iraq.
Mustafa Musa JaberDepartment of Medical Instruments Engineering Techniques, Dijlah University College, Baghdad, 10021, Iraq.
Suresh MuthusamyDepartment of Electronics and Communication Engineering, Kongu Engineering College (Autonomous), Perundurai, Erode, Tamil Nadu, India.
Hitesh PanchalDepartment of Mechanical Engineering, Government Engineering College, Patan, Gujarat, India.

Funding

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6 · The paper itself

Abstract

In the field of thermodynamics, entropy is a measure of the degree of disorder of the system considered focus. The direct measurement of entropy for microscopic systems involving molecule-level variations exists. However, for a macroscopic system, it still remains a challenge. The temperature reading is used as the primary index for understanding the quality of heat. In certain applications, the induced errors in the temperature measurement create complexity in decision making. One such case is the measurement of human body temperature for fever-like symptoms. This research aims to develop a direct entropy measuring device to indicate heat transfer for macroscopic systems. The developed device measured the mean entropy of the human body as 0.042 and 0.146 kJ/K during the daytime and nighttime, respectively. In comparison to the simulated entropy values, the measured values differed by 4% during the trials on the human body. Key decisions on macroscopic systems based on mild temperature variations can be made confidently with the measured entropy values.

Indexed as

Body temperatureEntropy measurementEnvironment-induced errorsInfraredThermodynamics

Identifiers

PMID40478032
PMCPMC9222350

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