Characterization of capillary pumping amount in novel sintered zeolites and hybrid zeolite-Cu for heat pipe applications

Midiani, Luh Putu Ike; Septiadi, Wayan Nata; Winaya, I Nyoman Suprapta; Sucipta, Made; Putra, Nandy

doi:10.1016/j.ijheatmasstransfer.2019.118759

Cited by 6 publications

(2 citation statements)

References 38 publications

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“…The maximum heat transfer rate (Qmax) analyzed use existing data from previous studies [9]. The sintered zeolite heat pipe configurations shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Heat Transfer Rate of Sintered Zeolite Wick Heat Pipe

Midiani¹,

Winaya

Septiadi

et al. 2020

IJEET

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This paper discusses about heat transfer rate in heat pipe with sintered zeolite wick. The type of zeolite is natural zeolite and activated zeolite. Zeolite used in powder form divided into two grain size i.e. 100 µm and 200 µm. Wick were made by sintering process. Calculation of the heat transfer rate for sintered zeolite heat pipe shows sintered zeolite activates heat pipe has the highest heat transfer rate.

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“…The maximum heat transfer rate (Qmax) analyzed use existing data from previous studies [9]. The sintered zeolite heat pipe configurations shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Heat Transfer Rate of Sintered Zeolite Wick Heat Pipe

Midiani¹,

Winaya

Septiadi

et al. 2020

IJEET

Self Cite

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“…Another study stated that the material in the evaporative cooling system must have good water absorption properties, be unreactive to the surrounding material, more rigid in moist (wet) conditions and the material pores are not too small so that it can cause a pressure drop. [6][7][8][9][10][11] There has been no research using bamboo materials, especially carbonized and activated carbonized bamboo Betung, as a pad material for the DEC system, in an effort to develop a porous pad material that has more measurable porosity, permeability, and water holding capacity. The selection of local Balinese bamboo in this study was based on the fact that besides being quite abundant in Bali, it was also known that the physical characteristics of bamboo Betung had a reed wall thickness of 11-36 mm, a reed length of 40-50 cm and a reed diameter of 12-18(20) cm.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Permeability Characteristics of Bamboo Betung Activated Carbon as Alternative Pad Material for Direct Evaporative Cooling System

Putra¹,

Wijaksana²,

Surya³

2022

Nat Sci Eng Tech Jour

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The increased growth in the building sector, especially in big cities, has triggered an increase in the need for electrical energy for cooling systems, most of which use compressor-based cooling systems. Direct Evaporative Cooling (DEC) is evaporative that produces cooling by utilizing the latent heat of evaporation of water on the wet surface of the pad material. The pad material must be sufficiently porous to allow the free flow of air through it and must have a large enough wet surface area. This study used carbonized and activated bamboo Betung as a material for the DEC system. The research was conducted to obtain the permeability characteristics of the carbonized bamboo pad material at various temperatures of 400oC, 500oC 600oC, 700oC, and 800oC and then activated at a temperature of 600oC with a holding time of 60 minutes. Based on the results of the research on the permeability characteristics of bamboo Betung activated carbon material, which was carbonized at a temperature of 400oC and activated at a temperature of 600oC with a holding time of 60 minutes (ABR 400) had the highest permeability of 13.6 x 10-15 m2. Meanwhile, the lowest permeability was produced by bamboo Betung material which was carbonized at a temperature of 800oC and activated at an activation temperature of 600oC with a holding time of 60 minutes (ABR 800) which is only 0.56x10-15 m2.

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