Feasibility of periodic thermosyphons for environmentally friendly ground source cooling applications
Author(s) -
Sauro Filippeschi,
Yuehong Su,
Saffa Riffat
Publication year - 2012
Publication title -
international journal of low-carbon technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.458
H-Index - 26
eISSN - 1748-1325
pISSN - 1748-1317
DOI - 10.1093/ijlct/cts002
Subject(s) - evaporator , condenser (optics) , thermosiphon , transient (computer programming) , environmentally friendly , nuclear engineering , environmental science , materials science , engineering , mechanical engineering , heat exchanger , computer science , physics , light source , ecology , optics , biology , operating system
This paper presents a feasibility study of a low-energy consumption ground source cooling system based on a periodic two-phase thermosyphon (PTPT) device in which a condensate is periodically transferred back to the evaporator. Operation of the PTPT is passive with the ground condenser positioned 1–11 m below the evaporator. The ground condenser may be at the condensing temperatures of 12–20°C depending on the ground depth. A semi-analytical approach is used to simulate the transient behaviour of the PTPT device. The simulation aims to study the effect of several parameters on the cooling rate of the device, including the length of condensing coil, the ground depth, the temperatures of the soil and the indoor air. The preliminary simulation results indicate that the PTPT device may be promising for ground source cooling applications
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