Indonesia is one of tropical country with a relatively warm temperature. Therefore Thermal Energy Storage(TES) need to be installed at building to maintain its comfort room temperature. This research studies the properties of phase change material with coconut oil and expanded graphite mixture for building energy storage applications. As an organic PCM, coconut oil has a low thermal conductivity, therefore expanded graphite are used as the supporting material to enhance thermal performance of the PCM. PCMs was prepared by sonicating expanded graphite into coconut oil with the mass fraction of 0.1 until 0.5 wt%. Thermal conductivity experiment was conducted with Huber thermostatic bath and KD 2 Pro analyzer. The morphology was generated with SEM experiment. The chemical structure of the mixture was generated by FTIR experiment. Particle size of the expanded graphite was generated with PSA experiment. The result in this study showed that expanded graphite and coconut oil mixture PCM show an continues improvement in thermal conductivity. with the highest increase of 19% at mass fraction of 0.5 wt%. also with sociation mixing methods and FTIR result shows that expanded graphite and coconut oil has no change in chemical structure.

1.
Paul
BYRNE
,
Anne-Lise
Tiffonnet
,
Michael
Filippidis
,
Nasruddin
Abdullah
,
Pascal
Lalanne
,
Ardiyansyah
Yatim
,
Patrice
Estellé
,
Idrus
Alhamid
,
Thierry
Maré
,
Nandy
Putra
. “
Study of a phase change material storage for the solar air conditioning system of a net-zero energy hotel in a tropical region
Manuscript
ID: 291647 DOI:
2.
Noël
,
J. A.
,
Kahwaji
,
S.
,
Desgrosseilliers
,
L.
,
Groulx
,
D.
, &
White
,
M. A.
(
2016
).
Phase Change Materials
.
Storing Energy
,
249
272
. doi:
3.
Djoko
Siswanto
, S. (
2019
).
Outlook Energy Indonesia
(2019 ed.).
Jakarta, Jakarta selatan
:
Energy Council
. ISSN 2527-3000
4.
Al-Absi
,
Z. A.
,
Isa
,
M. H.
, &
Ismail
,
M.
(
2020
).
Phase Change Materials (PCMs) and Their Optimum Position in Building Walls
.
Sustainability
,
12
(
4
),
1294
. doi:
5.
Ismail
,
K.
, &
Castro
,
J.
(
1997
).
PCM THERMAL INSULATION IN BUILDINGS
.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
,
21
,
1281
1296
.
6.
Murtyas
,
S. D.
,
Cholida
,
S. N.
, &
Ridwan
,
M. K.
(
2018
).
PEMODELAN PHASE CHANGE MATERIALS PADA DISTRIBUSI TERMAL SELUBUNG BANGUNAN HOTEL
.
Journal of Mechanical Engineering,
2
. doi:p-ISSN: 2598-7380, e-ISSN: 2613-9847
7.
Ma
,
C.
,
Zhang
,
Y.
,
Chen
,
X.
,
Song
,
X.
, &
Tang
,
K.
(
2020
).
Experimental Study of an Enhanced Phase Change Material of Paraffin/Expanded Graphite/Nano-Metal Particles for a Personal Cooling System
.
Materials
,
13
(
4
),
980
. doi:
8.
Admin
. (2020, September 25).
Thermal Conductivity - Definition and Detailed Explanation
. Retrieved December 20,
2020
, from https://byjus.com/chemistry/thermal-conductivity/
9.
Shi
,
X.
,
Memon
,
S. A.
,
Tang
,
W.
,
Cui
,
H.
, &
Xing
,
F.
(
2014
).
Experimental assessment of position of macro encapsulated phase change material in concrete walls on indoor temperatures and humidity levels
.
Energy and Buildings
,
71
,
80
87
. doi:
10.
Wang
,
Y.
, &
Yi
,
X.
(
2016
).
Research on the Application of Phase Change Materials in the Field of Building Energy Efficiency
.
Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology.
doi:
11.
Cheaburu-Yilmaz
,
C. N.
,
Karasulu
,
H. Y.
, &
Yilmaz
,
O.
(
2019
).
Nanoscaled Dispersed Systems Used in Drug-Delivery Applications
.
Polymeric Nanomaterials in Nanotherapeutics
,
437
468
. doi:
12.
Safira
,
L.
,
Putra
,
N.
,
Trisnadewi
,
T.
,
Kusrini
,
E.
, &
Mahlia
,
T.
(
2020
).
Thermal properties of sonicated graphene in coconut oil as a phase change material for energy storage in building applications
.
International Journal of Low-Carbon Technologies
,
629
636
.
13.
Shang
,
B.
,
Hu
,
J.
,
Hu
,
R.
,
Cheng
,
J.
, &
Luo
,
X.
(
2018
).
Modularized thermal storage unit of metal foam/paraffin composite
.
International Journal of Heat and Mass Transfer
,
125
,
596
603
. doi:
14.
Nandiyanto
,
A. B.
,
Oktiani
,
R.
, &
Ragadhita
,
R.
(
2019
).
How to Read and Interpret FTIR Spectroscope of Organic Material
.
Indonesian Journal of Science and Technology
,
4
(
1
),
97
.
15.
Huang
,
H. D.
,
Tu
,
J. P.
,
Gan
,
L. P.
, &
Li
,
C. Z.
(
2006
).
An investigation on tribological properties of graphite nanosheets as oil additive
.
Wear
,
261
(
2
),
140
144
.
16.
Alqahtani
,
T.
,
Mellouli
,
S.
,
Bamasag
,
A.
,
Askri
,
F.
, &
Phelan
,
P. E.
(
2020
).
Experimental and numerical assessment of using coconut oil as a phase-change material for unconditioned buildings
.
International Journal of Energy Research
,
44
(
7
),
5177
5196
.
17.
Horiba Instruments Inc
. (
2019
).
A Guide Book To Particle Size Analysis,
1-800-4-HORIBA
18.
Weiner
,
B. B.
(
2011
).
What is a Discrete Particle Size Distribution
.
Brookhaven Instruments
,
1
4
.
19.
Samah
Hamze
.
Graphene based nanofluids : development, characterization and application for heat and energy systems
.
Mechanical engineering [physics.class-ph].
Université Rennes
1,
2020
. English. ffNNT : 2020REN1S010ff. fftel-03033677
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