Heat Flux Condensation on Coconut Shell Activated Charcoal Porous Media

Djoko Hari Praswanto, Mochtar Asroni, Thomas Priyasmanu, Tutut Nani Prihatmi

Abstract

One way to keep the air humidity is by increasing the heat transfer with the porous media model. Increasing heat transfer depends on the value of the heat flux on the porous media. The heat flux value can be determined by inserting the porous media into the test section and then flow the vapor. The amount of heat absorbed is influenced by the large diameter of the porous on the media used. Therefore, this study aimed to optimize coconut shell charcoal by activating the charcoal. The purpose of activating coconut shell charcoal is to enlarge the pores so that it absorbs heat better than charcoal that has not been activated. The research method used is an experimental method and compares the results of research with previous studies. The porous media was vaporized for 60 minutes with a vapor temperature of 30 °C, while the vapor speed was varied, namely 1 m/s, 2m/s and 3 m/s. From the research results, that by using coconut shell activated charcoal, the heat flux value was higher than using coconut shell charcoal media. This is because the pore size in activated charcoal is larger and more numerous than charcoal that has not been activated so that it absorbs more heat. In addition, the greater the vapor speed, the higher the heat flux, because in the test section more vapor enters than vapor that comes out so that the porous media has a long time to absorb heat in the vapor. The heat transfer that occurs in porous media includes forced convection heat transfer because it has a value of Gr/Re2 < 1.

Keywords

Heat Flux, Porous Media, Coconut Shell Activated Charcoal, Convection Heat Transfer

Article Metrics

Abstract view : 0 times
PDF view : 0 times

Full Text:

PDF

References

B. Yang, G. Shen, H. Chen, Y. Feng, and L. Wang, “Experimental study of condensation heat-transfer and water-recovery process in a micro-porous ceramic membrane tube bundle,” Appl. Therm. Eng., vol. 155, no. February, pp. 354–364, 2019, doi: 10.1016/j.applthermaleng.2019.03.154.

A. Behrang, P. Mohammadmoradi, S. Taheri, and A. Kantzas, “A theoretical study on the permeability of tight media; Effects of slippage and condensation,” Fuel, vol. 181, pp. 610–617, 2016, doi: 10.1016/j.fuel.2016.05.048.

X. Wang, H. Chang, and M. Corradini, “A CFD study of wave influence on film steam condensation in the presence of non-condensable gas,” Nucl. Eng. Des., vol. 305, pp. 303–313, 2016, doi: 10.1016/j.nucengdes.2016.06.003.

M. Kostoglou and T. D. Karapantsios, “Aspects of the Two-Layer Model for Direct Contact Condensation of Steam on Wavy Falling Films,” Chem. Eng. Commun., vol. 202, no. 11, pp. 1535–1546, 2015, doi: 10.1080/00986445.2014.958151.

E. Siswanto, A. Z. Rifan, Purnami, D. Widhiyanuriyawan, and D. B. Darmadi, “The Effect of Porosity on the Temperature Spectrum Area and Heat Transfer in Chamber with Porous Media under the Saturated Vapour Flow,” IOP Conf. Ser. Mater. Sci. Eng., vol. 494, no. 1, 2019, doi: 10.1088/1757-899X/494/1/012071.

M. Ramzan, S. Riasat, S. Kadry, C. Long, Y. Nam, and D. Lu, “Numerical simulation of 3D condensation nanofluid film flow with carbon nanotubes on an inclined rotating disk,” Appl. Sci., vol. 10, no. 1, 2020, doi: 10.3390/app10010168.

M. Sheikholeslami, M. Darzi, and M. K. Sadoughi, “Heat transfer improvement and pressure drop during condensation of refrigerant-based nanofluid; an experimental procedure,” Int. J. Heat Mass Transf., vol. 122, pp. 643–650, 2018, doi: 10.1016/j.ijheatmasstransfer.2018.02.015.

G. Avantaggiato, R. Havenaar, and A. Visconti, “Evaluation of the intestinal absorption of deoxynivalenol and nivalenol by an in vitro gastrointestinal model, and the binding efficacy of activated carbon and other adsorbent materials,” Food Chem. Toxicol., vol. 42, no. 5, pp. 817–824, 2004, doi: 10.1016/j.fct.2004.01.004.

H. Sun et al., “Superhydrophobic activated carbon-coated sponges for separation and absorption,” ChemSusChem, vol. 6, no. 6, pp. 1057–1062, 2013, doi: 10.1002/cssc.201200979.

Y. Wang and T. Lu, “Influence of the particle diameter and porosity of packed porous media on the mixing of hot and cold fluids in a T-junction,” Int. J. Heat Mass Transf., vol. 84, pp. 680–690, 2015, doi: 10.1016/j.ijheatmasstransfer.2015.01.036.

M. L. Hwang and Y. T. Yang, “Numerical simulation of turbulent fluid flow and heat transfer characteristics in metallic porous block subjected to a confined slot jet,” Int. J. Therm. Sci., vol. 55, pp. 31–39, 2012, doi: 10.1016/j.ijthermalsci.2011.11.008.

Y. Wang, T. Lu, and K. Wang, “Effect of particle diameter of porous media on flow and heat transfer in a mixing tee,” Ann. Nucl. Energy, vol. 49, pp. 122–130, 2012, doi: 10.1016/j.anucene.2012.05.031.

B. Yang, H. Chen, C. Ye, X. Li, and Y. Feng, “Experimental study on differences of heat and mass flux between 10- and 50-nm pore-sized nano-porous ceramic membranes,” J. Aust. Ceram. Soc., vol. 55, no. 2, pp. 343–354, 2019, doi: 10.1007/s41779-018-0240-1.

E. Y. Setyawan, S. Djiwo, and T. Sugiarto, “Simulation Model of Fluid Flow and Temperature Distribution in Porous Media Using Cylindrical , Convergent and Divergent Nozzles,” vol. 1, no. 1, pp. 1–10, 2017.

M. Ramzan, M. Sheikholeslami, M. Saeed, and J. D. Chung, “On the convective heat and zero nanoparticle mass flux conditions in the flow of 3D MHD Couple Stress nanofluid over an exponentially stretched surface,” Sci. Rep., vol. 9, no. 1, pp. 1–13, 2019, doi: 10.1038/s41598-018-37267-2.

D. Praswanto, E. Siswanto, and N. Hamidi, “The effect of step ratio in sudden enlargement channel and vapor’s velocity towards condentation heat flux in porous media,” J. Mech. Eng., vol. 8, no. 2, pp. 75–82, 2017, doi: 10.21776/ub.jrm.2017.008.02.4.

Refbacks

  • There are currently no refbacks.