Experimental Analysis Double Pipe Heat Exchanger with Twisted Tape Inserts
Dissertation submitted
In partial fulfilment of requirement
For the award of degree of
Master of Technology in
Thermal Engineering by Sattenapalli Girish
13131D2105
Under the Guidance of
Smt. V. Sireesha
Assistant professor Department of Mechanical Engineering
GAYATRI VIDYA PARISHAD COLLEGE OF ENGINEERING (AUTONOMOUS)
(Affiliated to J.N.T. University, Kakinada)
VISHAKHAPATNAM - 53004
CERTIFICATE
This is to certify that the project titled Experimental Analysis of Double Pipe Heat Exchanger with Twisted Tape Inserts is a bonafide record of the work done by
Sattenapalli Girish
(13131D2105)
In partial fulfilment of the requirements for the award of the degree …show more content…
In parallel flow heat exchanger working fluids are enter the heat exchanger at the inlet end of the tube side and travel to the opposite outlet end in parallel streams. In a counter flow arrangement, the working fluids are incoming at opposite ends of the heat exchanger and flow in parallel but opposite directions. Temperatures within the two media incline to slant one another in a closely linear manner resulting in more uniform heating patter. Fig1.1 shows the heat exchangers of the axial temperature counter’s for each. Parallel flow results present quick initial rates of heat exchange near the entrance, but heat transfer rates quickly lower as the temperatures of the two fluids meet one another. This leads to higher heat loss during heat exchange. Counter flow provides for fairly constant temperature differences and, consequently, lead toward fairly constant heat rates throughout the length of the …show more content…
[3] the investigators perform the experiment on three steps. The first one is, plain tube heat exchanger and two different angled twisted tape inserts used as a reference. In the second step the investigators used twisted tapes by changing the twist angles of tape inserts. In the third step they compare the plain tube with inserts with tape inserts by changing the tape twist angle. Finally the experimental results reveal that heat transfer coefficient and pressure drop in the pipe, are higher than those in the plain tube. It is observed from the experiment the heat exchanger with annular twist tape having angle of 450 caused in higher in Nusselt number over plain heat exchanger and heat exchanger with twisted tape having angle
Dissertation submitted
In partial fulfilment of requirement
For the award of degree of
Master of Technology in
Thermal Engineering by Sattenapalli Girish
13131D2105
Under the Guidance of
Smt. V. Sireesha
Assistant professor Department of Mechanical Engineering
GAYATRI VIDYA PARISHAD COLLEGE OF ENGINEERING (AUTONOMOUS)
(Affiliated to J.N.T. University, Kakinada)
VISHAKHAPATNAM - 53004
CERTIFICATE
This is to certify that the project titled Experimental Analysis of Double Pipe Heat Exchanger with Twisted Tape Inserts is a bonafide record of the work done by
Sattenapalli Girish
(13131D2105)
In partial fulfilment of the requirements for the award of the degree …show more content…
In parallel flow heat exchanger working fluids are enter the heat exchanger at the inlet end of the tube side and travel to the opposite outlet end in parallel streams. In a counter flow arrangement, the working fluids are incoming at opposite ends of the heat exchanger and flow in parallel but opposite directions. Temperatures within the two media incline to slant one another in a closely linear manner resulting in more uniform heating patter. Fig1.1 shows the heat exchangers of the axial temperature counter’s for each. Parallel flow results present quick initial rates of heat exchange near the entrance, but heat transfer rates quickly lower as the temperatures of the two fluids meet one another. This leads to higher heat loss during heat exchange. Counter flow provides for fairly constant temperature differences and, consequently, lead toward fairly constant heat rates throughout the length of the …show more content…
[3] the investigators perform the experiment on three steps. The first one is, plain tube heat exchanger and two different angled twisted tape inserts used as a reference. In the second step the investigators used twisted tapes by changing the twist angles of tape inserts. In the third step they compare the plain tube with inserts with tape inserts by changing the tape twist angle. Finally the experimental results reveal that heat transfer coefficient and pressure drop in the pipe, are higher than those in the plain tube. It is observed from the experiment the heat exchanger with annular twist tape having angle of 450 caused in higher in Nusselt number over plain heat exchanger and heat exchanger with twisted tape having angle