The analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor area
The paper presents the influence analysis of such uncertainty factors as the heat transfer coefficient calculation method and the working chamber wall temperature on the mathematical modeling of the ammonia compression in a reciprocating compressor stage during the condensation of ammonia vapors....
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| Format: | Article |
| Language: | English |
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Omsk State Technical University, Federal State Autonomous Educational Institution of Higher Education
2021-10-01
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| Series: | Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение" |
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| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2021/%D0%A2.5,%20%20%E2%84%96%203%20(%D0%90%D0%A0%D0%B8%D0%AD%D0%9C)/30-38%20%D0%A1%D0%B0%D0%B4%D0%B2%D0%B0%D0%BA%D0%B0%D1%81%D0%BE%D0%B2%20%D0%94.%20%D0%A5.,%20%D0%A7%D0%B5%D1%80%D0%BD%D0%BE%D0%B2%20%D0%93.%20%D0%98.,%20%D0%AE%D1%88%D0%B0%20%D0%92.%20%D0%9B..pdf |
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| _version_ | 1832571160970133504 |
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| author | D. Kh. Sadvakasov G. I. Chernov V. L. Yusha |
| author_facet | D. Kh. Sadvakasov G. I. Chernov V. L. Yusha |
| author_sort | D. Kh. Sadvakasov |
| collection | DOAJ |
| description | The paper presents the influence analysis of such uncertainty factors as the heat transfer coefficient
calculation method and the working chamber wall temperature on the mathematical modeling of the
ammonia compression in a reciprocating compressor stage during the condensation of ammonia vapors.
The mathematical model is based on the equation of the first law of thermodynamics for bodies with
variable mass, the equation of state for real gases, the Clausius–Clapeyron and Newton–Richman
equations. When determining the heat transfer coefficient value, several well-known dependencies
for calculating these coefficients for dropwise and filmwise condensation have been considered. The
calculation data shows that the instantaneous values of the ammonia pressure and temperature, as well
as of the dryness fraction during compression in the wet steam region, significantly depends on the
chosen method for calculating the heat transfer coefficient. Moreover, the walls temperature value of
the compressor working chamber, where the compression occurs, has a considerable impact on the
process under discussion. They are the determining factors and require special attention when the
ammonia compression process is mathematically modelled in a reciprocating compressor stage, taking
into account its vapors condensation. |
| format | Article |
| id | doaj-art-44b02792035147c2ac1d924b088a29c5 |
| institution | Kabale University |
| issn | 2588-0373 2587-764X |
| language | English |
| publishDate | 2021-10-01 |
| publisher | Omsk State Technical University, Federal State Autonomous Educational Institution of Higher Education |
| record_format | Article |
| series | Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение" |
| spelling | doaj-art-44b02792035147c2ac1d924b088a29c52025-02-02T12:54:02ZengOmsk State Technical University, Federal State Autonomous Educational Institution of Higher EducationОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"2588-03732587-764X2021-10-0153303810.25206/2588-0373-2021-5-3-30-38The analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor areaD. Kh. Sadvakasov0G. I. Chernov1V. L. Yusha2https://orcid.org/0000-0001-9858-7687Omsk State Technical UniversityOmsk State Technical UniversityOmsk State Technical UniversityThe paper presents the influence analysis of such uncertainty factors as the heat transfer coefficient calculation method and the working chamber wall temperature on the mathematical modeling of the ammonia compression in a reciprocating compressor stage during the condensation of ammonia vapors. The mathematical model is based on the equation of the first law of thermodynamics for bodies with variable mass, the equation of state for real gases, the Clausius–Clapeyron and Newton–Richman equations. When determining the heat transfer coefficient value, several well-known dependencies for calculating these coefficients for dropwise and filmwise condensation have been considered. The calculation data shows that the instantaneous values of the ammonia pressure and temperature, as well as of the dryness fraction during compression in the wet steam region, significantly depends on the chosen method for calculating the heat transfer coefficient. Moreover, the walls temperature value of the compressor working chamber, where the compression occurs, has a considerable impact on the process under discussion. They are the determining factors and require special attention when the ammonia compression process is mathematically modelled in a reciprocating compressor stage, taking into account its vapors condensation.https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2021/%D0%A2.5,%20%20%E2%84%96%203%20(%D0%90%D0%A0%D0%B8%D0%AD%D0%9C)/30-38%20%D0%A1%D0%B0%D0%B4%D0%B2%D0%B0%D0%BA%D0%B0%D1%81%D0%BE%D0%B2%20%D0%94.%20%D0%A5.,%20%D0%A7%D0%B5%D1%80%D0%BD%D0%BE%D0%B2%20%D0%93.%20%D0%98.,%20%D0%AE%D1%88%D0%B0%20%D0%92.%20%D0%9B..pdfcompressionvapor regionheat transferammoniacondensation |
| spellingShingle | D. Kh. Sadvakasov G. I. Chernov V. L. Yusha The analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor area Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение" compression vapor region heat transfer ammonia condensation |
| title | The analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor area |
| title_full | The analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor area |
| title_fullStr | The analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor area |
| title_full_unstemmed | The analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor area |
| title_short | The analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor area |
| title_sort | analysis of uncertainty factors influence on mathematical modeling of ammonia compression in wet vapor area |
| topic | compression vapor region heat transfer ammonia condensation |
| url | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2021/%D0%A2.5,%20%20%E2%84%96%203%20(%D0%90%D0%A0%D0%B8%D0%AD%D0%9C)/30-38%20%D0%A1%D0%B0%D0%B4%D0%B2%D0%B0%D0%BA%D0%B0%D1%81%D0%BE%D0%B2%20%D0%94.%20%D0%A5.,%20%D0%A7%D0%B5%D1%80%D0%BD%D0%BE%D0%B2%20%D0%93.%20%D0%98.,%20%D0%AE%D1%88%D0%B0%20%D0%92.%20%D0%9B..pdf |
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