Temperature Profile and Thermocline Thickness Evaluation of a Stratified Thermal Energy Storage Tank
Determination of thermocline thickness requires a continuous profile of temperature distribution. Difficulty in determining thermocline thickness arises for the case of discrete temperature data, since the profile formed could not be used to estimate the thermocline thickness. This paper discusses...
| Main Authors: | , |
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| Format: | Citation Index Journal |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | http://scholars.utp.edu.my/id/eprint/1064/ http://scholars.utp.edu.my/id/eprint/1064/1/108601-2424_IJMME-IJENS.pdf |
| _version_ | 1848659071905824768 |
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| author | Waluyo, Joko A. Majid, M. Amin |
| author_facet | Waluyo, Joko A. Majid, M. Amin |
| author_sort | Waluyo, Joko |
| building | UTP Institutional Repository |
| collection | Online Access |
| description | Determination of thermocline thickness requires a
continuous profile of temperature distribution. Difficulty in determining thermocline thickness arises for the case of discrete temperature data, since the profile formed could not be used to estimate the thermocline thickness. This paper discusses a practical method for formulation of thermocline thickness of stratified thermal energy storage. Curve fitting by iterative method was adopted to identify the functions which could represent the S-curve
of temperature distribution. Based on the functions, thermocline
thickness was formulated using functional relationship of
temperature profile. Results identified two functions which could
represent S-curve of temperature distribution, namely sigmoid dose
response (SDR) and four parameter sigmoid (FPS) functions. Both
functions were observed to well fit the temperature distributions
having coefficient determination more than 0.99. Based on
evaluations the formulations were capable to be utilized for
evaluation of thermocline thickness of the stratified TES. The
methods offer an advantage to obtain an exact value of thermocline
thickness. |
| first_indexed | 2025-11-13T07:24:36Z |
| format | Citation Index Journal |
| id | oai:scholars.utp.edu.my:1064 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:24:36Z |
| publishDate | 2010 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:scholars.utp.edu.my:10642017-01-19T08:25:00Z http://scholars.utp.edu.my/id/eprint/1064/ Temperature Profile and Thermocline Thickness Evaluation of a Stratified Thermal Energy Storage Tank Waluyo, Joko A. Majid, M. Amin TJ Mechanical engineering and machinery Determination of thermocline thickness requires a continuous profile of temperature distribution. Difficulty in determining thermocline thickness arises for the case of discrete temperature data, since the profile formed could not be used to estimate the thermocline thickness. This paper discusses a practical method for formulation of thermocline thickness of stratified thermal energy storage. Curve fitting by iterative method was adopted to identify the functions which could represent the S-curve of temperature distribution. Based on the functions, thermocline thickness was formulated using functional relationship of temperature profile. Results identified two functions which could represent S-curve of temperature distribution, namely sigmoid dose response (SDR) and four parameter sigmoid (FPS) functions. Both functions were observed to well fit the temperature distributions having coefficient determination more than 0.99. Based on evaluations the formulations were capable to be utilized for evaluation of thermocline thickness of the stratified TES. The methods offer an advantage to obtain an exact value of thermocline thickness. 2010 Citation Index Journal PeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/1064/1/108601-2424_IJMME-IJENS.pdf Waluyo, Joko and A. Majid, M. Amin (2010) Temperature Profile and Thermocline Thickness Evaluation of a Stratified Thermal Energy Storage Tank. [Citation Index Journal] |
| spellingShingle | TJ Mechanical engineering and machinery Waluyo, Joko A. Majid, M. Amin Temperature Profile and Thermocline Thickness Evaluation of a Stratified Thermal Energy Storage Tank |
| title | Temperature Profile and Thermocline
Thickness Evaluation of
a Stratified Thermal Energy Storage Tank |
| title_full | Temperature Profile and Thermocline
Thickness Evaluation of
a Stratified Thermal Energy Storage Tank |
| title_fullStr | Temperature Profile and Thermocline
Thickness Evaluation of
a Stratified Thermal Energy Storage Tank |
| title_full_unstemmed | Temperature Profile and Thermocline
Thickness Evaluation of
a Stratified Thermal Energy Storage Tank |
| title_short | Temperature Profile and Thermocline
Thickness Evaluation of
a Stratified Thermal Energy Storage Tank |
| title_sort | temperature profile and thermocline
thickness evaluation of
a stratified thermal energy storage tank |
| topic | TJ Mechanical engineering and machinery |
| url | http://scholars.utp.edu.my/id/eprint/1064/ http://scholars.utp.edu.my/id/eprint/1064/1/108601-2424_IJMME-IJENS.pdf |