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Hirota, Masafumi. Thermal performance and local air temperature analysis of a cooling serpentine copper pipe. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2022.
Thermal performance and local air temperature analysis of a cooling serpentine copper pipe
Name: Napassawan Khammayom
Organization :
Mie University. School of Engineering
Name: Maruyama, Naoki
Organization :
Mie University. School of Engineering
Email :
maruyama.naoki@mie-u.ac.jp
Name: Chatchawan Chaichana
Organization :
Chiang Mai University. Faculty of Engineering
Name: Hirota, Masafumi
Organization :
Mie University. School of Engineering
LCSH:
Heat
-- Transmission
LCSH:
Temperature control
LCSH:
Serpentine
Abstract:
Modern control heating/cooling technologies play an important role in
enhancing the energy efficiency and economically feasible alternatives to conventional
systems. The main objective of this study was to control local air temperatures only
around a plantation area. This study experimentally investigated the thermal
performance and local air temperature distributions around a cooling serpentine copper
pipe heat exchanger in a laboratory-scale room. The experiments were carried out under
various operating conditions, in which the fluid supply temperature, fluid flow rate, and
heat transfer surface area were controlled. The inlet water temperature varied from -7.6
to 3.0°C, and the volume flow rate varied from 1.5 L/min to 3.0 L/min. The local air
temperatures above and below the serpentine panel, as well as the relative humidity,
were measured. In addition, the one-at-a-time sensitivity analysis method was used to
analyze the effect of influencing parameters on cooling capacity. The calculation and
measurements showed that a cooling serpentine copper pipe can reduce local air
temperatures. The average heat flux significantly increased while the inlet water
temperature decreased from 3.0 to -7.6°C. Under the same volume flow rate, the average
heat flux increased approximately 77% (at 𝑄̇𝑤= 1.5 L/min), 65% (at 𝑄̇𝑤= 2.0 L/min),
64% (at 𝑄̇𝑤= 2.5 L/min) and 32% (at 𝑄̇𝑤= 3.0 L/min), respectively, while the inlet water
temperature reduced from 3.0 to -7.6°C. The results also indicated that the inlet water
temperature had a great effect on heat flux. Furthermore, the local air temperature could
be reduced with a lower flow rate, which shows potential in the field of energy-saving.
Under volume flow rate of 1.5 L/min, the maximum temperature difference between
room air and local air temperatures was 4.0°C (𝑇𝑤𝑖 = 3.0°C) and 6.2°C (𝑇𝑤𝑖 = -6.5°C).
In conclusion, a serpentine copper pipe heat exchanger can help to control local air
temperature and can be used to control the temperature in a small area as well as use
less energy than conventional air conditioning.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2022
Modified:
2023-05-23
Issued:
2023-05-23
บทความ/Article
application/pdf
BibliograpyCitation :
In King Mongkut's University of Technology Thonburi. Faculty of Engineering. Department of Mechanical Engineering. The 12th TSME International Conference on Mechanical Engineering (TSME-ICoME12 2022) (pp.355-363). Bangkok : King Mongkut's University of Technology Thonburi
eng
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
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0.040752 วินาที
Napassawan Khammayom
| Title | Contributor | Type |
|---|---|---|
| Thermal performance and local air temperature analysis of a cooling serpentine copper pipe
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Napassawan Khammayom;Maruyama, Naoki;Chatchawan Chaichana;Hirota, Masafumi | บทความ/Article |
Maruyama, Naoki
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|---|---|---|
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| Thermal performance and local air temperature analysis of a cooling serpentine copper pipe
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Napassawan Khammayom;Maruyama, Naoki;Chatchawan Chaichana;Hirota, Masafumi | บทความ/Article | |
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Chatchawan Chaichana
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|---|---|---|
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| Investigation of solar light intensity beneath a solar photovoltaic system in a tropical climate region
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Hirota, Masafumi
| Title | Contributor | Type |
|---|---|---|
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| Thermal performance and local air temperature analysis of a cooling serpentine copper pipe
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| Flow visualization and heat transfer characteristics of refrigerant gas-liquid two-phase flow passing through fine rectangular grooves in the evaporation process
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| Visualization and analysis of two-phase refrigerant flow passing through a thin tube with contraction and expansion sections
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| Influence of compressor oil contained in the CO2 refrigerant on evaporative heat transfer and its visualization
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