Synergistic analysis of heat transfer characteristics of an internally finned two phase closed thermosyphon

Feasibility of using multiport minichannel as thermosyphon for cooling of miniaturized electronic devices

“…It is clearly observed that the wall temperature results obtained from the present study follow a similar trend with the published literature and also they relatively show lower wall temperature. The wall temperature observed from the present study is 6.5%, 8.6%, and 34% lower than that of the results reported by Lataoui and Jemni, 23 Asirvatham et al, 24 and Nair et al, 25 respectively. The lower wall temperature might have taken place because of the multiports present in the thermosyphon.…”

“…In addition, the present experimental data are validated with the published literature. The variation in the evaporator wall temperature with respect to the length of the thermosyphon of the present study is compared with Lataoui and Jemni, 23 Asirvatham et al, 24 and Nair et al, 25 and shown in Figure 5. It is clearly observed that the wall temperature results obtained from the present study follow a similar trend with the published literature and also they relatively show lower wall temperature.…”

Enhancing thermal performance of a two-phase closed thermosyphon with an internal surface roughness

“…It is also reported that additional condensate mass of 22% and 32% can be produced using 8 and 12 fins, respectively, which would be helpful to avoid the dry out during the operation of the thermosyphon. A similar study to (Nair & Balaji 2015) has been carried out experimentally by (Naresh & Balaji 2017), but for various fill ratios and two working fluids, water and acetone. They concluded that at low heat load, reduction of 17% and 35.48% is obtained in the temperature and thermal resistance of TPCT due additional condensate mass resulting from inserting six internal fins in the condenser section.…”

“…Also, A correlation for predicting the condensation heat transfer coefficient of the TPCT was proposed. (Nair & Balaji 2015) investigated numerically using Fluent and Matlab the effect of internal fins inside the condenser section on the performance of a two-phase closed thermosyphon. They concluded that adding 8 fins in the condenser section increases the thermal conductivity of the TPCT by about 43%.…”

Heat transfer characteristics of an external‐fin‐assisted two‐phase closed thermosyphon: An experimental study

“…They also demonstrated that using serrated fins leads to a higher efficiency as compared to plain fins. Nair and Balaji 20 numerically modeled the heat transfer enhancement by using internal fins. They showed that an increase of about 22% and 32% in the condensate mass is obtained by using 8 and 12 fins in the condenser section, respectively.…”