• A.A.Kapse
• V.C.Shewale

In present experimental investigation, heat transfer and pressure drop characteristics of a new passive cup insert for three different pitch sizes are reported for fully developed turbulent flow. Experiments were performed in a tube in tube heat exchanger using water as a working medium in the Reynolds number range of 8000 to 32000. The average Nusselt number ratios and average friction factor ratios for augmented tube case to plain tube case are found to be in the range of 1.67-1.4 and 5.44 - 4.93 respectively. The average performance ratio for constant pumping power are also reported and found to be in the range of 0.69 – 0.6. The effect of pitch of cup on performance is reported.

Average performance ratio, turbulent flow regime, passive insert

"“EXPERIMENTAL INVESTIGATION TO STUDY HEAT TRANSFER AND PRESSURE DROP CHARACTERISTICS OF HEMISPHERICAL CUP SHAPE PASSIVE INSERT FOR A FULLY DEVELOPED TURBULENT FLOW IN DOUBLE PIPE HEAT EXCHANGER”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.78-83, May-2019, Available :http://www.jetir.org/papers/JETIRCA06016.pdf

"“EXPERIMENTAL INVESTIGATION TO STUDY HEAT TRANSFER AND PRESSURE DROP CHARACTERISTICS OF HEMISPHERICAL CUP SHAPE PASSIVE INSERT FOR A FULLY DEVELOPED TURBULENT FLOW IN DOUBLE PIPE HEAT EXCHANGER”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp78-83, May-2019, Available at : http://www.jetir.org/papers/JETIRCA06016.pdf