... potential). Performance evaluation criteria (PEC) and friction factors were analyzed to evaluate the penalty in pressure drop for the heat transfer enhancement achieved. The experimental analysis revealed a maximum heat transfer enhancement in the coolant of 14.2% at CFR of 6lpm using 0.12% vol. fraction...

... study is carried out using Taguchi and ANOVA methods for two specified objective functions (heat transfer and pressure drop). The order of importance and impact rates for each design and operating parameter, the best and worst working conditions in terms of both target functions are determined. Air...

...Deepak Khurana; Sudhakar Subudhi The present paper deals with the forced convection and pressure drop of Al 2 O 3 /water and TiO 2 /water nanofluids with the presence of inserts in a circular tube. The constant heat flux is maintained around the copper tube with the help of a nichrome wire heater...

... in the pressure drop, and the increase in the channel heat transfer coefficient is higher than pressure drop for some cases. The influence of multiple bypass injections on the wall temperature distribution of a single-phase mini/micro-channel was investigated numerically. The effect of bypass percentage...

... absorbed, pressure drop in the microchannel evaporator, PV temperature, and electrical efficiency are analyzed. The analysis shows that increasing the degree of superheating decreases the amount of heat absorbed, has minimal effect on the PV temperature (for superheating <15 °C), but reduces...

... disadvantage. One of the erudite solutions to overcome this is to tilt the entire loop by a certain angle, with an inherent penalty in heat transfer and pressure drop. In the present study, experimental studies have been carried out on two-phase carbon dioxide (CO 2 ) based NCL, which has gained popularity...

...Mosab A. Alrahmani; Issa F. Almesri; Hosny Z. Abou-Ziyan; Jaber H. Almutairi This paper reports the effect of setting density on flow uniformity, pressure drop, pumping power, and convective heat transfer coefficients (CHTCs). High-density setting (HDS) comprises 768 bricks, and low-density setting...

... the heat transfer to deteriorate. The high-flux tube with a particle diameter of 200 mesh was found to exhibit the best cooling performance. The pressure drop was observed to increase with the increase of the particle diameter. However, the pressure drop was found to be three orders of magnitude smaller...

... temperature of 279 K, over a mass flow range of 150–380 kg m −2 s −1 , with inlet and outlet vapor qualities of 0.2 and 0.8, respectively. Pressure drop data of the four tested tubes were collected to evaluate five identified prediction correlations based on the separated flow model and the homogeneous flow...

... better than that of the straight channel, and both the heat transfer coefficient and total pressure drop increase with the decrease of D h / R . This study may provide a useful reference for performance prediction and structural design of shell condensers used for underwater vehicles and may provide...

... pressure drop is dominant due to the low mass flow rates. The variation of the pressure of the working fluid in the water wall tube with the fluid temperature is large in the vicinity of the pseudocritical point, and the change in the pressure of the working fluid in the water wall tube along the furnace...

...Lazarus Godson; B. Raja; D. Mohan Lal; S. Wongwises The convective heat transfer coefficient and pressure drop of silver-water nanofluids is measured in a counter flow heat exchanger from laminar to turbulent flow regime. The experimental results show that the convective heat transfer coefficient...

...) and the double-tube heat exchanger (DHE) are carried out. It is found out that the pressure drop in the PHE is about 3.0–50.0 kPa at the flow rate of 2.5–13.0 L /min ( 0.15 – 0.78 m 3 ∕ h ) and is about 1.0–27.0 kPa at the flow rate of 3.0–14.0 L /min ( 0.18 – 0.84 m 3 ∕ h ) in the DHE, which is nearly 2 times...