Irsyad, Muhammad and Pasek, Ari Darmawan and Indartono, Yuli Setyo and Suwono, Aryadi and Pradipta, Muhammad Akbar (2017) Phase Change Materials Development from Salt Hydrate for Application as Secondary Refrigerant in Air Conditioning System. Science and Technology for the Built Environment, - (-). pp. 1-7. ISSN 2374-4731 (Print) 2374-474X (Online)

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Abstract

alt hydrate for application as secondary refrigerant in the air conditioning system are selected based on the slurry forming according to the evaporator temperature 5oC - 12oC. Research development of salt hydrate for application is done in three stages namely; the study of the properties, flow and heat transfer characteristics, so applications in air conditioning systems. Study of the properties of the PCM is in the form of latent heat, freezing and melting temperature, thermal stability properties, viscosity, and rate of corrosion. Study of flow and heat transfer characteristics determine the effect of salt hydrates on the pressure drop and heat transfer in a heat exchanger. Studies on the application of the air conditioning system is made to use a type of cooling room air handling units (AHU) and fan coil unit (FCU). The results of the researches for each of two stages are described in the discussion of this paper. The characteristics of salt hydrates from Na2HPO4 and CaCl2 are fitted to be applied as secondary refrigerant. This material has high latent heat value and matched phase change temperature as well as very low corrosion rate. This material also demonstrates excellent heat transfer performance, in which an increase as much as 18.62% for salt hydrate from calcium chloride and 13.9% for salt hydrate from disodium hydrogen phosphate. For its flow characteristics, a less significant increase on pressure drop for Na2HPO4.

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: 07 Nov 2017 02:33
Last Modified: 07 Nov 2017 02:33
URI: http://repository.lppm.unila.ac.id/id/eprint/4770

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