Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Analysis of Closed‐Loop Thermosyphon System Filled With Methanol for Different Adiabatic Lengths
https://orcid.org/0000-0003-2532-9403
ABSTRACTThis paper addresses the performance of a closed‐loop thermosyphon using methanol as the working fluid, which is especially relevant for low‐temperature applications where water's effectiveness is limited. It explores various operating parameters, like, heat input, adiabatic length, and filling ratio (FR), and how these factors impact thermal performance. The use of methanol, a fluid with a lower saturation temperature than water, makes it suitable for thermal management in low‐temperature environments. Several parameters were varied during tests, including the adiabatic lengths of 500 and 800 mm, heat inputs ranged from 0.5 to 2.0 kW and the amount of methanol filling (FR) varied from 0.3 to 0.7. The study focused on thermal performance metrics, such as thermal resistance (TR), evaporator and condenser heat transfer coefficients (HTCs), and thermal effectiveness. The key finding includes TR decreased with increasing heat input up to an FR of 0.6, after which it increased. For medium adiabatic length (500 mm), for heat inputs above 1 kW, the thermosyphon demonstrated the lowest TR. For lower FRs (around 0.3) and heat inputs of 1 kW, the evaporator HTC was optimal. A correlation for the evaporation HTC was suggested and validated with an accuracy of ± 30% compared with measured values. This analysis indicates that thermosyphons using methanol can be an efficient option for thermal management in low‐temperature scenarios. The paper likely aims to provide practical insights into optimizing such systems for various applications.
Analysis of Closed‐Loop Thermosyphon System Filled With Methanol for Different Adiabatic Lengths
https://orcid.org/0000-0003-2532-9403
ABSTRACTThis paper addresses the performance of a closed‐loop thermosyphon using methanol as the working fluid, which is especially relevant for low‐temperature applications where water's effectiveness is limited. It explores various operating parameters, like, heat input, adiabatic length, and filling ratio (FR), and how these factors impact thermal performance. The use of methanol, a fluid with a lower saturation temperature than water, makes it suitable for thermal management in low‐temperature environments. Several parameters were varied during tests, including the adiabatic lengths of 500 and 800 mm, heat inputs ranged from 0.5 to 2.0 kW and the amount of methanol filling (FR) varied from 0.3 to 0.7. The study focused on thermal performance metrics, such as thermal resistance (TR), evaporator and condenser heat transfer coefficients (HTCs), and thermal effectiveness. The key finding includes TR decreased with increasing heat input up to an FR of 0.6, after which it increased. For medium adiabatic length (500 mm), for heat inputs above 1 kW, the thermosyphon demonstrated the lowest TR. For lower FRs (around 0.3) and heat inputs of 1 kW, the evaporator HTC was optimal. A correlation for the evaporation HTC was suggested and validated with an accuracy of ± 30% compared with measured values. This analysis indicates that thermosyphons using methanol can be an efficient option for thermal management in low‐temperature scenarios. The paper likely aims to provide practical insights into optimizing such systems for various applications.
Analysis of Closed‐Loop Thermosyphon System Filled With Methanol for Different Adiabatic Lengths
https://orcid.org/0000-0003-2532-9403
ABSTRACTThis paper addresses the performance of a closed‐loop thermosyphon using methanol as the working fluid, which is especially relevant for low‐temperature applications where water's effectiveness is limited. It explores various operating parameters, like, heat input, adiabatic length, and filling ratio (FR), and how these factors impact thermal performance. The use of methanol, a fluid with a lower saturation temperature than water, makes it suitable for thermal management in low‐temperature environments. Several parameters were varied during tests, including the adiabatic lengths of 500 and 800 mm, heat inputs ranged from 0.5 to 2.0 kW and the amount of methanol filling (FR) varied from 0.3 to 0.7. The study focused on thermal performance metrics, such as thermal resistance (TR), evaporator and condenser heat transfer coefficients (HTCs), and thermal effectiveness. The key finding includes TR decreased with increasing heat input up to an FR of 0.6, after which it increased. For medium adiabatic length (500 mm), for heat inputs above 1 kW, the thermosyphon demonstrated the lowest TR. For lower FRs (around 0.3) and heat inputs of 1 kW, the evaporator HTC was optimal. A correlation for the evaporation HTC was suggested and validated with an accuracy of ± 30% compared with measured values. This analysis indicates that thermosyphons using methanol can be an efficient option for thermal management in low‐temperature scenarios. The paper likely aims to provide practical insights into optimizing such systems for various applications.
Analysis of Closed‐Loop Thermosyphon System Filled With Methanol for Different Adiabatic Lengths
Heat Trans
Birajdar, Mahasidha R. (Autor:in) / Sewatkar, C. M. (Autor:in)
19.02.2025
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch