Open AccessThermal performance of shallow spiral-tube ground heat exchanger for ground-source cooling system
Author(s) -
Jalaluddin,
Akio Miyara,
Rustan Tarakka,
Andi Amijoyo Mochtar,
IR Muhammad Anis
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/619/1/012012
Subject(s) - spiral (railway) , borehole , heat exchanger , inlet , tube (container) , thermal , environmental science , water cooling , geology , mechanics , materials science , geotechnical engineering , meteorology , thermodynamics , engineering , geomorphology , physics , mechanical engineering , composite material
This study present an investigation of thermal performance of spiral-tube ground heat exchanger (GHE) buried in shallow depth of borehole. The spiral-tube GHE consisting of spiral pipe installed in the borehole provides a better performance in application of ground-source cooling system. Experimental study was carried-out by circulating water through the spiral-tube GHE which is buried in the ground of 3 m depth. Temperatures of inlet and outlet water in the GHE were measured and recorded periodically. The thermal performance of the GHE was calculated with different inlet water temperatures. Heat exchange rate for different inlet water temperature of the spiral-tube GHEs are 44 W/m (35 °C), 126 W/m (40 °C) and 110 W/m (45 °C). The results show that the utilization of shallow borehole of spiral-tube GHE is appropriated for application in ground-source cooling system especially for the hot climate like Indonesia.