Open Access
ARTICLE
EFFECT OF EVAPORATOR DIAMETERS ON PERFORMANCES OF A CUSTOM AIR WATER GENERATOR
Mirmanto Mirmantoa,*, Syahrul Syahrula, Agung Tri Wijayantab
a Mechanical Engineering Department, Engineering Faculty, University of Mataram, Jl. Majapahit no. 62, Mataram, NTB, 83125, Indonesia
b Department of Mechanical Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36A, Surakarta, 57126, Indonesia
*
Corresponding author. Email: mmirmanto@gmail.com
Frontiers in Heat and Mass Transfer 2023, 20, 1-5. https://doi.org/10.5098/hmt.20.9
Abstract
A study to examine the effect of evaporator diameters on the performances of a custom air-water generator had been conducted in naturally room air
temperatures. Performances in this study consisted of fresh water production, coefficient of performance, and total heat transfer from the air. The
freshwater was attained from the dew that dropped from the evaporator walls. It was from water vapour in the air that condensed due to the low
temperature of the evaporator walls. The evaporator which had dimensions of 285 mm x 12.7 mm x 480 mm was placed in an open box (top and
bottom). It was made of copper pipes. There were three evaporators tested with different diameters. Case A indicated the diameter of the evaporator
was 3.00 mm, Case B was the evaporator with a diameter of 4.00 mm, and Case C was the evaporator with a diameter of 6.35 mm. The results
showed that the maximum fresh water obtained was 0.369 kg, the coefficient of performances found ranged from 7.8 to 18.6, and the highest total
heat transfer was 152.1 W.
Keywords
Cite This Article
Mirmanto, M., Syahrul, S., Wijayanta, A. T. (2023). EFFECT OF EVAPORATOR DIAMETERS ON PERFORMANCES OF A CUSTOM AIR WATER GENERATOR.
Frontiers in Heat and Mass Transfer, 20(1), 1–5.