Thermodynamic analysis and visualization of closed loop pulsating heat pipe Available to Purchase

In modern system, PHP is used to transfer heat from one place to another. In the current research work CLPHP is made of borosilicate capillary tube. This tube is filled with working fluid, filling ratio with 50%. Inner diameter 2 mm and water is taken as fluid with 2 turn PHP. There are many aspects which distress the performance of CLPHP like filling ratio, number of turns, working fluid etc. In this experimentation, number of turns used is one and the inputs is changed from 20W to 100W in different heat inputs. We can take time to start the bubble slugs and capture the images of bubble at each stage of heat input (Q). We can also capture the (a) initial stage (b) bubble flow (c) churn flow (d) slug flow (e) semi-annular flow (f) annular flow at various heat input. At 20 W & 50% filling ratio, it takes nearly half an hour to start pulsating action. Semi- annular flow will starts from at heat input of 40 W. Annular flow will starts from at heat input of 50 W. As the evaporator temperature increases, the semi-annular pattern changes into fully annular pattern and the pulsating action becomes faster.