Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Makara Journal of Technology Jurnal Teknik Terapan (J-TETA)
Rosulindo, Parisya P
Unknown Affiliation
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Thermal Performance Investigation of Thermoelectric Cooling System with Various Hot-Side Cooling Methods Prasetyo, Bowo Y; Rosulindo, Parisya P; Wang, Fujen
Makara Journal of Technology Vol. 28, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Thermoelectric devices have been widely used in various applications, including cooling and power generation. The potential application of thermoelectric cooling systems has been studied. However, these systems still face challenges in achieving optimal performance compared with other cooling systems. Several factors, including the hot-side cooling method, influence the performance of thermoelectric systems. This study aimed to investigate the effects of different hot-side cooling methods on the thermoelectric performance and thermal behavior of thermoelectric cooling systems. The testing methods involved the combination of the thermoelectric module with five hot-side heat exchangers, including a square heatsink, a round heatsink, a two-pipe heat pipe, four-pipe heat pipe, and a liquid cooler, with variations in the operating voltage. The experimental results reveal that the different heat exchangers considerably affected the system performance. The liquid cooler consistently achieved the lowest hot- and cold-side temperatures among all heat exchangers. In the case of the ratio of the cooling capacity and temperature difference across the module, the liquid cooler attained the highest values at 12 and 9 V. In addition, the square heatsink exhibited the highest ratio at 6 V. Meanwhile, the coefficient of performance (COP) values were relatively similar in the various heat exchangers, with the liquid cooler generally showing higher COP values.
Retrofitting Alternatif Refrigeran Ramah Lingkungan R-290 dengan R-134a pada Trainer Unit Instalasi Sistem Refrigerasi Muliawan, Rizki; Akmal, Muhammad; Rosulindo, Parisya P; Kurniasetiawati, Annisa S
Jurnal Teknik Terapan Vol. 5 No. 1 (2026): April
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

R-134a refrigerant has been widely used in industrial and commercial refrigeration systems; however, its high global warming potential (GWP) of up to 1430 has driven the search for more environmentally friendly alternatives. R-290 (propane) is considered a promising candidate due to its zero ozone depletion potential (ODP) and very low GWP of only 3, along with thermodynamic properties that are relatively comparable to those of R-134a. This study aims to evaluate the performance of a refrigeration system retrofitted from R-134a to R-290 using two types of expansion devices, namely a thermostatic expansion valve (TXV) and a capillary tube. The experimental method was conducted by varying the refrigerant charge based on equal mass and maintaining similar evaporator temperature conditions under no-load operation. The results indicate that the system using R-290 is capable of delivering cooling performance comparable to that of R-134a for both types of expansion devices. Furthermore, the use of R-290 results in lower energy consumption, with energy savings ranging from 8% to 9% compared to R-134a. This comparable performance suggests that the thermodynamic properties of R-290 are sufficiently compatible to replace R-134a in the same system without requiring significant modifications to the main components. The observed performance differences are primarily influenced by flow characteristics and the expansion process associated with each type of expansion device. Therefore, R-290 demonstrates strong potential as an environmentally friendly and energy-efficient alternative refrigerant, particularly for retrofit applications in existing refrigeration systems.
Co-Authors Kurniasetiawati, Annisa S Muhammad Akmal Muliawan, Rizki Prasetyo, Bowo Y Wang, Fujen