irsyad, muhammad and Amrizal, Amrizal and Susila, M Dyan (2018) The Addition of Phase Change Materials in the Wall to Reduce the Overall Thermal Transfer Value (OTTV). Prosiding Seminar Nasional Tahunan Teknik Mesin (SNTTM) ke 17, 1 (1). pp. 218-223. ISSN 2623-0313

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Abstract

Electricity consumption in the building sector is among the largest. Air conditioning system (AC) is one of the equipment that has the largest contribution to the increase in electricity consumption. Solar radiation entering through the wall by conduction is one source of cooling load. The greater cooling load has resulted in an increase in the required AC capacity so that it has an impact on the increase in electrical energy. One criterion of evaluating the thermal transfer capability of a wall is the overall thermal transfer value (OTTV). The lower OTTV of a building wall, it is better impact to the cooling load. This research was conducted to determine the effect of adding PCM on the wall to OTTV and compared to standard walls. OTTV calculations are performed on the vertical wall of the north-facing building and located in Jakarta with a position of 6.12o LS, and on August 8, 2017 with area of 1m2. The results of the calculation has showed a daily average OTTV decrease due to the addition of PCMs were 9.8% for walls with PCM coconut oil and 14.4% for walls with PCM Paraffin C13 - C24. Whereas if it involves the phase change process, the daily thermal energy that can be absorbed by each PCMs per square meter were 40.2% for PCM coconut oil and 95.8% for PCM Paraffin C13 - C24.

Item Type: Article
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Fakultas Teknik (FT) > Prodi Teknik Mesin
Depositing User: DR MUHAMMAD IRSYAD
Date Deposited: 15 Nov 2018 03:03
Last Modified: 15 Nov 2018 03:03
URI: http://repository.lppm.unila.ac.id/id/eprint/9926

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