Optimization Position Variable Refrigerant Flow In Building Using CFD Method

  • Rosyida Permatasari Universitas Trisakti, Jakarta, Indonesia
  • Riana Khairunisa Universitas Trisakti, Jakarta, Indonesia
DOI: https://doi.org/10.31258/ijeepse.6.1.126-132
Abstract viewed: 200 times
pdf downloaded: 257 times
Keywords: variable refrigerant flow, CFD, condensing unit, air temperature, multi-story building

Abstract

Variable refrigerant flow type is a multi-split type air conditioner for multi-story buildings. The aim of this study getting obtains optimization placement of the condensing unit to inlet air temperature in a multi-story building using the CFD method. The simulation was conducted from the 11th to the 30th floor. There are three variations of condensing unit position on each floor (Variation 1), on every two floors (Variation 2), and on the roof (variation 3). The result of the first variation is 35.32 °C, with the difference between the highest and lowest is 3.9 °C. The average temperature of the 2nd variation is 34.44 °C, with the difference between the highest and lowest being 0.92 °C. The average temperature of the 3rd variation is 36.65 °C, with the difference between the highest and lowest being 8.03 °C. Among the three variations, the 2nd variation of the condensing unit input air temperature is lower. Then the difference between the highest and lowest temperatures is not too far apart, indicating a more even distribution of air. The 1st, 2nd, and 3rd variations condensing unit position do not exceed Panasonic VRF air conditioner operational temperature limit, which is 52 °C.

Author Biography

Riana Khairunisa , Universitas Trisakti, Jakarta, Indonesia

 

 

References

BPS, “Hasil Sensus Penduduk 2020 - DKI Jakarta,” Sensus Pendud. 2020, vol. 6, no. 5, pp. 1–18, 2020.

2020 Badan Pusat Statistik, Konstruksi Dalam Angka. 2020.

Badan Standar Nasional Indonesia, “SNI No. 03-6572-2001 Konservasi Energi Sistem Tata Udara pada Bangunan Gedung,” 2020.

T. N. Aynur, Y. Hwang, and R. Radermacher, “Simulation comparison of VAV and VRF air conditioning systems in an existing building for the cooling season,” Energy Build., vol. 41, no. 11, pp. 1143–1150, 2009.

L. Kwon, “Experimental Evaluation of a Multifunctional Variable Refrigerant Flow System in an Educational Office Building,” University of Maryland, College Park, 2013.

M. Bruelisauer, F. Meggers, E. Saber, C. Li, and H. Leibundgut, “Stuck in a stack - Temperature measurements of the microclimate around split type condensing units in a high rise building in Singapore,” Energy Build., vol. 71, pp. 28–37, Mar. 2014.

Faldian, “Kajian pengaruh jarak penghalang pada sisi masukan udara kondenser terhadap konsumsi energi dan kapasitas pendinginan mesin tata udara,” in Prosiding Seminar Nasional XII "Rekayasa Teknologi Industri dan Informasi 2017 Sekolah Tinggi Teknologi Nasiona Yogyakarta, 2018.

W. Jin, Y. Zheng, Y. Zhang, and Y. Jiang, “Experimental Study of Factors Affecting the Performance of a Semi-enclosed Outdoor Air-conditioning Unit,” in Procedia Engineering vol. 121, pp. 1713–1720, 2015.

Triaji Pangripto Pramudantoro, “Uji Performansi Mesin A / C Split 1 PK Akibat Pengaruh Variasi Jarak Instalasi Outdoor-Unit Terhadap Dinding,” Energi ISSN 2089-2527, vol. 10, no. November, pp. 36–39, 2020.

Y. Zhang, Z. Wei, E. Long, X. Zhang, and S. Guo, “Outdoor air thermal plume simulation of layer-based VRF air conditioners in high-rise buildings,” in Energy Procedia, vol. 142, pp. 3787–3792, 2017.

R. Duan, X. Wang, Y. Song, and J. Liu, “Influence of Air-conditioning Outdoor Unit Arrangement Strategy on Energy Consumption,” in Procedia Engineering, 2016.

T. L. Indonesia, “MVAC SYSTEM DRAWING LIST,” 2021.

Panasonic, “FSV VRF SYSTEMS,” 2021.

M. A. B. Yunus A. Cengel, Thermodynamics: An Engineering Approach, 5th ed. McGraw-Hill Science/Engineering/Math, 2015.

S. K. Wang, Handbook of air conditioning and refrigeration, 2nd ed., vol. 32, no. 02. 2011.

Published
2023-02-28
How to Cite
[1]
R. Permatasari and R. Khairunisa, “Optimization Position Variable Refrigerant Flow In Building Using CFD Method”, IJEEPSE, vol. 6, no. 1, pp. 126-132, Feb. 2023.