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HASIL PENILAIAN SEJAWAT SEBIDANG ATAU PEER REVIEW KARYA ILMIAH : PROSIDING

Judul Karya Ilmiah : Experimental study of small wall room air conditioner for R-22 retrofitted with R290 95.5%

Jumlah Penulis : 2

Status Pengusul : Penulis ke-1

Identitas Prosiding : a. Judul Prosiding : AIP Conference Proceeding Volume 2062, 25 January 2019, Article number 020025

THE 10TH INTERNATIONAL MEETING OF ADVANCES IN THERMOFLUIDS (IMAT 2018)

b. ISBN/ISSN : ISSN:0094-243X E-ISSN:1551-7616 c. Thn Terbit, Tempat Pelaks. : 2019, Bali

d. Penerbit/Organiser : AIP Publishing

e. Alamat Repository/Web :

https://aip.scitation.org/journal/apc

Alamat Artikel :

https://aip.scitation.org/doi/10.1063/1.5086566

f. Terindeks di (jika ada) : Scopus

Kategori Publikasi Makalah :

Prosiding Forum Ilmiah Internasional

(beri pada kategori yang tepat)

Prosiding Forum Ilmiah Nasional

Hasil Penilaian Peer Review :

Komponen Yang Dinilai

Nilai Maksimal Prosiding Nilai Akhir Yang Diperoleh Internasional Nasional

a. Kelengkapan unsur isi prosiding (10%) 3,00 2,8

b. Ruang lingkup dan kedalaman pembahasan (30%)

9,00 7,5

c. Kecukupan dan kemutahiran data/informasi dan metodologi (30%)

9,00 8,0

d. Kelengkapan unsur dan kualitas terbitan /prosiding (30%)

9,00 8,5

Total = (100%) 30 26,8

Nilai Pengusul = 60% x 26,8 = 16,08 Catatan Penilaian Paper oleh Reviewer :

1. Kesesuaian dan kelengkapan unsur isi prosiding:

Artikel terdiri dari: Title, Abstract, Introduction, Materials and Method, Results and Discussion, Conclusion, Acknowledgment, References dan ditulis sesuai dengan Guide for Author. Substansi artikel merupakan salah satu bidang fokus Teknik Mesin yaitu sistem refrigerasi

2. Ruang lingkup dan kedalaman pembahasan:

Artikel membahas tentang penelitian penggunaan propana dengan konsentrasi 95.5 % (biasanya konsentrasi yang digunakan sebesar 99,5%) sebagai refrigeran. Penggunaan refrigeran propana dengan konsentrasi 95.5 % mempunyai biaya produksi yang lebih murah dibandingkan dengan propana dengan konsentrasi 99.5%. Pembahasan lebih banyak menyajikan data, bahkan metod eperhitungan seperti COP 3. Kecukupan dan kemutakhiran data/infrmasi dan metodologi:

Jumlah referensi dalam 10 tahun terakhir sebanyak 3 dari 7 artikel (46.34%). Literatur terlalu minim. Metoda yang digunakan adalah eksperimental dengan menggunakan peralatan yang akurat, sehingga hasilnya dapat dipercaya.

4. Kelengkapan unsur dan kualitas terbitan:

rnal diterbitkan oleh AIP Publishing, penyelenggara: Faculty of Engineering Universitas Indonesia (UI), Faculty of Mechanical Engineering, Universiti Teknologi Malaysia (UTM) and the Department of Mechanical Engineering, National University of Singapore (NUS), terindeks SCOPUS dengan Impact factor= 0.182. Keynotespeaker dari Jepang, Saudi Arabia, Malaysia dan Spanyol. Peserta sebanyak 50 terdiri dari Jepang (1), Malaysia(5), Saudi Arabia(1), Spanyol(1) dan Indonesia (43). Kualitas terbitan cukup baik dan konsisten serta dilengkapi dengan petunjuk penulisan yang jelas. Nilai similaritas artikel berdasarkan Turnitin sebesar 6%.

Semarang, 23 Maret 2020 Reviewer 3

Prof. Dr. Widayat, ST., MT.

NIP. 197209061998031001

Unit Kerja : Fakultas Teknik Universitas Diponegoro Bidang Ilmu : Teknik Kimia

(2)

LEMBAR

HASIL PENILAIAN SEJAWAT SEBIDANG ATAU PEER REVIEW KARYA ILMIAH : PROSIDING

Judul Karya Ilmiah : Experimental study of small wall room air conditioner for R-22 retrofitted with R290 95.5%

Jumlah Penulis : 2

Status Pengusul : Penulis ke-1

Identitas Prosiding : a. Judul Prosiding : AIP Conference Proceeding Volume 2062, 25 January 2019, Article number 020025

THE 10TH INTERNATIONAL MEETING OF ADVANCES IN THERMOFLUIDS (IMAT 2018)

b. ISBN/ISSN : ISSN:0094-243X E-ISSN:1551-7616 c. Thn Terbit, Tempat Pelaks. : 2019, Bali

d. Penerbit/Organiser : AIP Publishing

e. Alamat Repository/Web :

https://aip.scitation.org/journal/apc

Alamat Artikel :

https://aip.scitation.org/doi/10.1063/1.5086566

f. Terindeks di (jika ada) : Scopus

Kategori Publikasi Makalah :

Prosiding Forum Ilmiah Internasional

(beri pada kategori yang tepat)

Prosiding Forum Ilmiah Nasional

Hasil Penilaian Peer Review :

Komponen Yang Dinilai

Nilai Maksimal Prosiding

Nilai Akhir Yang Diperoleh Internasional Nasional

a. Kelengkapan unsur isi prosiding (10%) 3,00 3

b. Ruang lingkup dan kedalaman pembahasan

(30%) 9,00 8

c. Kecukupan dan kemutahiran data/informasi dan

metodologi (30%) 9,00 9

d. Kelengkapan unsur dan kualitas terbitan

/prosiding (30%) 9,00 8

Total = (100%) 30 28

Nilai Pengusul = 60% x 28 = 16.8

Catatan Penilaian Paper oleh Reviewer :

1. Kesesuaian dan kelengkapan unsur isi prosiding:

Artikel terdiri dari: Title, Abstract, Introduction, Materials and Method, Results and Discussion, Conclusion, Acknowledgment, References dan ditulis sesuai dengan Panduan Penulisan. Substansi artikel merupakan salah satu bidang fokus Teknik Refrigerasi dan Tata Udara yang merupakan bidang Teknik Mesin.

2. Ruang lingkup dan kedalaman pembahasan:

Artikel meneliti penggunaan refrigeran alami propana dengan konsentrasi 95.5 % sebagai refrigeran. Diharapkan penggunaan refrigeran propana dengan konsentrasi lebih rendah yaitu, 95.5 % mempunyai biaya produksi yang lebih murah dibandingkan dengan propana dengan tingkat kemurnian tinggi yaitu konsentrasinya 99.5%. Hasil dari penelitian performansi mesin AC yang diisi oleh massa propana 60% dengan konsentrasi 95% sama dengan performansi mesin AC yang diisi R22. Pembahasan baik dan refrensi yang digunakan sebanyak 7 buah.

3. Kecukupan dan kemutakhiran data/informasi dan metodologi:

Dalam penelitian ini dilakukan secara eksperimental dengan alat ukur yang akurat, sehingga hasilnya dapat dipercaya. 3 referensi diterbitkan dalam 10 tahun terakhir, sehingga prosentasenya sebesar 46,3%

4. Kelengkapan unsur dan kualitas terbitan:

Penyelenggara: Faculty of Engineering Universitas Indonesia (UI), Faculty of Mechanical Engineering, Universiti Teknologi Malaysia (UTM) and the Department of Mechanical Engineering, National University of Singapore (NUS), terindeks SCOPUS dengan Impact factor= 0.182. Jurnal diterbitkan oleh AIP Publishing. Keynotespeaker berasal dari Spanyol , Jepang, Malaysia dan Saudi Arabia. Peserta sebanyak 50 orang: Saudi Arabia(1), Malaysia(5), Jepang (1), Spanyol(1) dan Indonesia (43). Penerbit termasuk yang mempunyai reputasi baik. Nilai similaritas artikel berdasarkan Turnitin sebesar 6%.

(3)

Semarang, Reviewer

Prof. Dr. Jamari, S.T., M.T.

NIP. 197403042000121001

Unit Kerja: Fakultas Teknik Universitas Diponegoro

Bidang Ilmu: Teknik Mesin

(4)

Document details

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Experimental study of small wall room air conditioner for R-22 retrofitted with R290 95.5%

(Conference Paper) (Open Access)

,

Department of Mechanical Engineering, Diponegoro University, Prof. Sudharto, SH. Street, Tembalang-Semarang, 50275, Indonesia

Abstract

This study discusses the use of HC-290 with 95.5% propane content as a safe and energy-efficient alternative for retrofitting of R22 . The set-up equipment consists of a compressor, condenser, evaporator and capillary tube. The system test is performed using a variation of evaporator entrance temperature as the cooling load. Temperatures were varied 20°C, 23°C, 25°C, 29°C, respectively. The small wall room air conditioner was charged by R22 according to the nameplate and R-290 with a variation of 30%, 40%, 50% and 60% of total mass according to the nameplate. R290 has a higher refrigeration effect than R22 . But R22 has cooling capacity higher than R290 . The highest electrical consumption was the air conditioner , which was charged by R22 and was followed by propane 95.5% with 60%, 50%, 40% and 30% charging. The average electrical consumption of the air conditioner charged by R22 was 1.5 times the air conditioner to be charged by R290 . The highest COP was obtained by propane 95.5% with 60% charging and followed by R22 . While propane 95% with 30%, 40%, and 50% charging had low COP. © 2019 Author(s).

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Funding details

Funding sponsor Funding number Acronym

United States Agency for International Development

Singapore-MIT Alliance for Research and Technology Centre -497-A-1600004,-00000078-UI-1

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AIP Conference Proceedings

Volume 2062, 25 January 2019, Article number 020019

10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018; Grand Inna HotelKuta, Bali; Indonesia;

16 November 2018 through 17 November 2018; Code 144536

Berkah Fajar, T.K.  Tanaka, I.R. 

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This article’s publication is supported by the United States Agency for International Development (USAID) through the Sustainable Higher Education Research Alliance (SHERA) Program for Universitas Indonesia’s Scientific Modeling, Application, Research and Training for City-centered Innovation and Technology (SMART CITY) Project, Grant #AID- 497-A-1600004, Sub Grant #IIE-00000078-UI-1.

Powell, R.L.

(2002) Journal of Fluorine Chemistry, 114 (2), pp. 237-250.  . doi: 10.1016/S0022-1139(02)00030-1

Palm, B.

(2008) International Journal of Refrigeration, 31 (4), pp. 552-563.  . doi: 10.1016/j.ijrefrig.2007.11.016

Sattar, M.A., Saidur, R., Masjuki, H.

Butane, isobutane and their mixture as an alternative to R134a in a domestic refrigerator (2007) Int. J. of World Mechanical and Materials Engineering, 29, pp. 223-228.  .

 

Fatouh, M., El Kafafy, M.

(2006) Energy Conversion and Management, 47 (15-16), pp. 2644-2658.  . doi: 10.1016/j.enconman.2005.10.018

Dalkilic, A.S., Wongwises, S.

(2010) International Communications in Heat and Mass Transfer, 37 (9), pp. 1340-1349.  . doi: 10.1016/j.icheatmasstransfer.2010.07.006

ISSN: 0094243X ISBN: 978-073541790-8

Source Type: Conference Proceeding Original language: English

DOI: 10.1063/1.5086566

Document Type: Conference Paper

Volume Editors: Yatim A.,Nasruddin,Budiyanto M.A.,Aisyah N.,Alhamid M.I.

Publisher: American Institute of Physics Inc.

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Hydrocarbons as refrigerants in small heat pump and refrigeration systems - A review

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Hadya, B., Sri, P.U., Akella, S.

Comparative Study of Eco-friendly Refrigerants in a Lower Capacity Air-Conditioning System (2012) International Conference on Mechanical and Automotive Engineering, pp. 48-51.

 

Devotta, S., Padalkar, A.S., Sane, N.K.

(2005) International Journal of Refrigeration, 28 (4), pp. 594-604.  . doi: 10.1016/j.ijrefrig.2004.09.013

Berkah Fajar, T.K.; Department of Mechanical Engineering, Diponegoro University, Prof. Sudharto, SH. Street, Tembalang-Semarang, Indonesia; email:

© Copyright 2019 Elsevier B.V., All rights reserved.

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Performance assessment of HC-290 as a drop-in substitute to HCFC-22 in a window air conditioner

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1/13/2020 https://aip.scitation.org/action/showLargeCover?doi=10.1063%2Fapc.2019.2062.issue-1

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THE 10TH INTERNATIONAL MEETING OF ADVANCES IN THERMOFLUIDS (IMAT 2018):

Smart City: Advances in Thermofluid Technology in Tropical Urban Development

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Conference date: 16–17 November 2018 Location: Bali, Indonesia

ISBN: 978-0-7354-1790-8

Editors: Muhamad Idrus Alhamid, Ardiyansyah Yatim, Nasruddin, Muhammad Arif Budiyanto and Nyayu Aisyah

Volume number: 2062 Published: Jan 25, 2019

DISPLAY : 20 50 100 all

PRELIMINARY

THE 10TH INTERNATIONAL MEETING OF ADVANCES IN THERMOFLUIDS (IMAT 2018): Smart City: Advances in

Thermofluid Technology in Tropical Urban Development

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AIP Conference Proceedings 2062, 010001 (2019); https://doi.org/10.1063/1.5086547

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Experimental Study on the Effect of Adsorbent Height on Adsorption Dynamics

Mahbubul Muttakin

1,2

, Animesh Pal

1,2

, Kutub Uddin

1

, Kyaw Thu

1,2

, Kazuhide Ito

2

, Bidyut Baran Saha

1,3,a)

1

International Institute for Carbon-Neutral Energy Research (WPI-I

2

CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

2

Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga-koen 6-1, Kasuga-shi, Fukuoka 816-8580, Japan

3

Mechanical Engineering Department, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

Corresponding author,

a)

[email protected]

Abstract. This study experimentally investigated the effect of adsorbent height on adsorption dynamics for carbon dioxide gas (CO2) adsorption onto commercially available highly porous activated carbon powder, named as Maxsorb III.

The experiments were conducted using a magnetic suspension adsorption measurement unit. Three different heights of the Maxsorb III adsorbent were used in the experiments. Experimental data were reported for adsorption temperatures of 30 ºC and 70 ºC and for 2 different pressure steps. It had been observed that the adsorption rate strongly depended on the height of the adsorbent. This signifies that the kinetic parameters obtained by the similar experimental measurements may not be directly applicable in designing an adsorption heat exchanger. The lower height of the adsorbent provided faster adsorption kinetics. Key performance parameter, such as the specific cooling capacity for an adsorption refrigeration system was also calculated from the experimental data. The results of the present study suggested that the adsorbent height needs to be considered while using kinetics parameters in designing adsorption heat exchanger. .

NOMENCLATURE

E Characteristic energy for D-A equation (J/mol) P Pressure (kPa)

P

S

Saturation pressure (kPa) R Universal gas constant (J/mol K) T Temperature (ºC or K)

W Instantaneous uptake (kg/kg)

W

0

Saturation adsorption capacity (kg/kg) W

eq

Equilibrium uptake (kg/kg)

W

N

Normalized uptake (kg/kg) SCE Specific cooling effect (kJ/kg) SCC Specific cooling capacity (W/kg)

t Time (s)

τ Time constant (s)

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020002-1

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AIP Conference Proceedings 2062, 020014 (2019); https://doi.org/10.1063/1.5086561

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The analytic and CFD modeling studies of saturated steam mass flow in curved convergent divergent nozzle

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Bambang Sugiarto, C. Setyo Wibowo, Ardi Zikra, Alva Budi, Try Mulya and May Muchar AIP Conference Proceedings 2062, 020018 (2019); https://doi.org/10.1063/1.5086565

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Experimental study of small wall room air conditioner for R-22 retrofitted with R290 95.5%

Berkah Fajar T. K. and Imam Ridwan Tanaka

AIP Conference Proceedings 2062, 020019 (2019); https://doi.org/10.1063/1.5086566 SHOW ABSTRACT 

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AIP Conference Proceedings 2062, 020047 (2019); https://doi.org/10.1063/1.5086594

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AIP Conference Proceedings 2062, 020048 (2019); https://doi.org/10.1063/1.5086595

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The 10th International Meeting of Advances in Thermofluids (IMAT 2018) AIP Conf. Proc. 2062, 020049-1–020049-8; https://doi.org/10.1063/1.5086596

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Heat and mass transfer of ethanol and methanol droplets with temperature and air flow rates variations

Engkos A. Kosasih, Iskandar Agung, Amudi T. Siahaan and Dwiki Prasetyo

AIP Conference Proceedings 2062, 020056 (2019); https://doi.org/10.1063/1.5086603

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An innovative pressure swing adsorption cycle

Muhammad Wakil Shahzad, Doskhan Ybyraiymkul, Muhammad Burhan, Seung Jin Oh and Kim Choon Ng

AIP Conference Proceedings 2062, 020057 (2019); https://doi.org/10.1063/1.5086604

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Heat transfer of single phase flow with natural refrigerant (R- 290) in microchannel

Raldi Artono Koestoer, Sentot Novianto and Agus S. Pamitran

AIP Conference Proceedings 2062, 020058 (2019); https://doi.org/10.1063/1.5086605

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An Innovative Pressure Swing Adsorption Cycle

Muhammad Wakil Shahzad

a

,Doskhan Ybyraiymkul, Muhammad Burhan, Seung Jin Oh and Kim Choon Ng

Water Desalination and Reuse Centre, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia

a)

Corresponding author: [email protected]

Abstract. Over the last century, fresh water and cooling demand have been increased tremendously due to improved living standard, industrial and economic development. The conventional air-conditioning and refrigeration processes consume 15% of total global electricity and it is expected to increase any fold due to harsh weather conditions. In terms of fresh water supplies, the current 38 billion m3 per year desalination capacity is projected to increase to 54 billion m3 per year by 2030, 40% more compared to 2016. The current business as usual trend of cooling and desalination is not sustainable due to high energy consumption and CO2 emissions.

In contrast, the adsorption (AD) cycle operate at low-grade waste heat or renewable energy and produce fresh water and cooling simultaneously. The major bottleneck of conventional thermally driven AD cycle is its large foot print and capital cost due to complex packed bed arrangements. We proposed pressure swing adsorption cycle (PSAD) that can utilize low-pressure steam (2-5 bar) for regeneration using thermal vapor compressor (TVC). The proposed system has best thermodynamic synergy with CCGT plants where low-pressure bleed steam can be utilized more efficiently to produce cooling and water. In this paper, a preliminary experimental investigation on PSAD has been presented. It is successfully demonstrated that 2 bar primary steam can regenerate silica gel at less then 0.5 kPa through TVC with compression ratio 3-4 and entrainment ratio around 1-1.5. The discharge steam can be re-utilized to operate the desalination cycle, maximizing the bleed steam exergy. The proposed system will not only reduce footprint but also CAPEX and OPEX due to simple design and operation.

INTRODUCTION

Demand for fresh water and cooling is increasing due to population growth and industrial development. Portable water need becomes major issue in many countries as available fresh-water resources are limited [1–5]. In order to partially satisfy needs currently 38 billion m3 per year water is desalinated, and it is expected increasing of desalination capacity to 54 billion m3 per year by 2030, 40% more compared to 2016 [4]. However, the total water demand is already higher than the sustainable level [6]. On the other hand, cooling provided by conventional vapor- compression refrigeration systems are challenged due to the ozone depletion potential (ODP) and global warming potential (GWP) caused by the halogenated refrigerants. Adsorption cooling is one of the most attractive technology for cooling applications, because it is environmentally friendly: zero ODP, zero GWP [7]. Adsorption cooling system uses adsorbents such as silica gel to adsorb and desorb a water vapor by changing temperature or pressure.

Notable works have been done on temperature swing adsorption cooling systems [8–17], and pressure swing adsorption cooling is still developing [18,19]. We proposed pressure swing adsorption cycle (PSAD) that can utilize low-pressure steam (2-5 bar) for regeneration using thermal vapor compressor (TVC). Categories of the available desalination methods are shown in Figure 1.

The 10th International Meeting of Advances in Thermofluids (IMAT 2018) AIP Conf. Proc. 2062, 020057-1–020057-5; https://doi.org/10.1063/1.5086604

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Fatty acid of microalgae as a potential feedstock for biodiesel production in Indonesia

Arif Rahman, Nining Betawati Prihantini and Nasruddin

AIP Conference Proceedings 2062, 020059 (2019); https://doi.org/10.1063/1.5086606

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Performance and application of combined system of liquid desiccant and R718 centrifugal heat pump

Hajime Yabase, Seiichi Yamaguchi, Kiyoshi Saito, Hiroshi Hasuike, Hayato Sakamoto, Satoru Matsumoto and Masatoshi Harada

AIP Conference Proceedings 2062, 020060 (2019); https://doi.org/10.1063/1.5086607

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Chiller performance study with refrigerant R290

Zulfa Fuadi, Ardiyansyah Yatim, Rachmah Rizky, Nyayu Aisyah, Idrus Alhamid, Budihardjo Budihardjo and Nandy Putra

AIP Conference Proceedings 2062, 020061 (2019); https://doi.org/10.1063/1.5086608

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Heat and mass transfer droplets of n-Hexane and n-Heptane towards temperature and rate of air flow rate variations

Engkos Achmad Kosasih, Dwiki Prasetyo, Amudi Tua Siahaan, Ardiyansyah Yatim and Agus Sunjarianto Pamitran

AIP Conference Proceedings 2062, 020062 (2019); https://doi.org/10.1063/1.5086609

Free . January 2019

Low energy-specific consumption of refrigerants for

combination of electric air heater and refrigeration system using double condensers: A simulation of thermodynamic system

Nanang Ruhyat and Engkos Achmad Kosasih

AIP Conference Proceedings 2062, 020063 (2019); https://doi.org/10.1063/1.5086610

Free . January 2019

Replication and leakage test of polydimethylsiloxane (PDMS) microfluidics channel

Ummikalsom Abidin, Nurul Ayuni Safra Mat Daud and Valentin Le Brun

AIP Conference Proceedings 2062, 020064 (2019); https://doi.org/10.1063/1.5086611 SHOW ABSTRACT 

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An IDS investigation of the flow field physics within compressible boundary layers

Tasmin Hossain, Frederick Ferguson, Michael D. Atkinson and Yang Gao

AIP Conference Proceedings 2062, 020065 (2019); https://doi.org/10.1063/1.5086612

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Analysis of convergent and divergent-convergent nozzle of waterjet propulsion by CFD simulation

Muhammad Arif Budiyanto, Jansen Novri, Muhammad Idrus Alhamid and Ardiyansyah AIP Conference Proceedings 2062, 020066 (2019); https://doi.org/10.1063/1.5086613 SHOW ABSTRACT 

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1/13/2020 Committees – IMAT 2018

https://imat.eng.ui.ac.id/committees/# 1/2

General Chair: Ardiyansyah, Ph.D.

General Co-Chair: Dr. Eng. M.A. Budiyanto Treasurer: Dr. Eny Kusrini

International Advisory Board:

1. Prof. Dr. Ir. M. Idrus Alhamid (UI) 2. Prof. Dr. Mazlan Abdul Wahid (UTM) 3. Prof. Dr. Kim Choon Ng (KAUST)

4. Prof. Alberto Coronas (Universitat Rovira i Virgili) Scienti c Committee:

1. Assoc. Prof. Dr.-Ing Nasruddin, MSc (UI) 2. Assoc. Prof. Dr. Agus S Pamitran, M.Eng. (UI) 3. Ardiyansyah, Ph,D (UI)

4. Professor Dr Normah Mohd Ghazali 5. Professor Ir Dr Farid Nasir Ani

6. Professor Madya Dr Haslinda Mohd Kamar 7. Professor Madya Dr Syahrullail Samion 8. Professor Madya Dr Nazri Kamsah 9. Dr. Aminuddin Saat

10. Dr. Fazila Mohd Zawawi

11. Dr. Muhammad Wakil Shahzad  

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[email protected] Department of Mechanical Engineering Faculty of Engineering Universitas Indonesia,

Kampus Baru UI Depok, 16424, Indonesia

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Prof. Alberto Coronas Universitat Rovira i Virgili

Prof. Bidyut Baran Saha Kyushu University

Prof. Hwataik Han Kookmin University

Prof. Kiyoshi Saito Waseda University

Prof. Kim Choon Ng

King Abdullah University of Science and Technology

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lJl',.'.¼\.'fR\JJ,\, 1'-HX).._l.,IA

TEKNIK

,

The 10

th

International Meeting on Advances in Thermofluids

16-17 November 2018 Grand Inna Kuta Bali Indonesia

CERTIFICATE OF PARTICIPATION

This is to certify that the following article

Experimental study of small wall room air conditioner for R-22 retrofitted with R290 95.5%

Berkah Fajar T. K. and Imam Ridwan Tanaka

has been presented at

The 10th International Meeting on Advances in Thermofluids (IMAT2018)

Which was held at

Grand Inna Kuta, Bali, Indonesia November 16 th , 2018

Ardiyansyah, Ph.D.

The 10 th IMAT 2018 General Chair

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