ANALISIS PENGARUH TEMPERATUR AIR LAUT TERHADAP EFEKTIVITAS PERPINDAHAN PANAS CONDENSER
| Dublin Core | PKP Metadata Items | Metadata for this Document | |
| 1. | Title | Title of document | ANALISIS PENGARUH TEMPERATUR AIR LAUT TERHADAP EFEKTIVITAS PERPINDAHAN PANAS CONDENSER |
| 2. | Creator | Author's name, affiliation, country | Yusuf Septiawan Angandrowa Adhi; <span>Jurusan Teknik Mesin, Politeknik Negeri Jakarta</span><br />; Indonesia |
| 2. | Creator | Author's name, affiliation, country | Jusafwar Jusafwar; Jurusan Teknik Mesin, Politeknik Negeri Jakarta |
| 2. | Creator | Author's name, affiliation, country | Adi Syuriadi; Jurusan Teknik Mesin, Politeknik Negeri Jakarta |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | Condenser; effectiveness of heat transfer; sea water temperature; LMTD |
| 4. | Description | Abstract | Global climate change as an implication of global warming causes many physical changes that occur on the surface of the sea, one of which is the temperature of the rising sea water. The condenser is a major part of a Combine Cycle Power Plant (CCPP) system that serves to condense vapor or change the vapor phase after the expansion of the steam turbine into a liquid phase by transferring heat from the vapor into the cooling water medium, ie seawater. Theoretically, the temperature of seawater flowing in the cooling water circulation system has a significant effect on the heat transfer process in the condenser. Increased sea water temperatures will have an impact on decreasing the effectiveness of heat transfer occurring in the condenser so that a suitable coolant flow rate is required to restore the value of heat transfer effectiveness in the condenser. Therefore, it is necessary to analyze the effectiveness calculations that occur between the heat transfer based on the desired design targets of the manufacturer with the actual maximum heat transfer that the condenser may reach. The method used is to perform various calculations, ie calculation of coolant fluid convection coefficient by using Dittus-Boelter heat transfer correlation (forced convection), calculation of heat fluid convection coefficient by Log Mean Temperature Difference (LMTD) method, and calculation on effectiveness heat exchanger with effectiveness method - Number of Thermal Unit. The result of calculation and comparison of actual heat transfer effectivity value with the target of baseline condenser design in PLTGU Grati block 1 showed a decrease of heat transfer effectivity value from 78,15 [%] to 70,76 [%] which happened due to rising sea water temperature. Therefore, to maintain the value of heat transfer effectiveness so as not to decrease, a large open valve outlet condenser opening arrangement was performed to accelerate the flow rate of cooling water in each LMTD with the percentage of outlet valve openings between 46 [%] to 55 [%] so that the heat release in the refrigerant pipe occurs faster. |
| 5. | Publisher | Organizing agency, location | |
| 6. | Contributor | Sponsor(s) | |
| 7. | Date | (YYYY-MM-DD) | 2019-01-16 |
| 8. | Type | Status & genre | Peer-reviewed Paper |
| 8. | Type | Type | |
| 9. | Format | File format | |
| 10. | Identifier | Universal Resource Indicator | http://semnas.mesin.pnj.ac.id/seminar/index.php/semnas/SNTM18/paper/view/61 |
| 11. | Source | Journal/conference title; vol., no. (year) | Seminar Nasional Teknik Mesin; Seminar Nasional Teknik Mesin 2018 |
| 12. | Language | English=en | en |
| 13. | Relation | Supp. Files | |
| 14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
| 15. | Rights | Copyright and permissions | Authors who submit to this conference agree to the following terms: a) Authors retain copyright over their work, while allowing the conference to place this unpublished work under a Creative Commons Attribution License, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference. b) Authors are able to waive the terms of the CC license and enter into separate, additional contractual arrangements for the non-exclusive distribution and subsequent publication of this work (e.g., publish a revised version in a journal, post it to an institutional repository or publish it in a book), with an acknowledgement of its initial presentation at this conference. c) In addition, authors are encouraged to post and share their work online (e.g., in institutional repositories or on their website) at any point before and after the conference. |