Experimental investigation on heat transfer enhancement and pressure drop of double pipe heat exchanger in solar water heating system

2018 ◽  
Author(s):  
N. Sreenivasalu Reddy ◽  
K. Rajagopal ◽  
P. H. Veena ◽  
M. Eswaramoorthy
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Heating System ◽  
Transfer Enhancement ◽  
Solar Water Heating ◽  
Double Pipe ◽  
Solar Water Heating System ◽  
Pipe Heat

scholarly journals HEAT TRANSFER ENHANCEMENT AND PRESSURE DROP OF GROOVED ANNULUS OF DOUBLE PIPE HEAT EXCHANGER

2017 ◽  
Vol 57 (2) ◽  
pp. 125 ◽  
Author(s):  
Putu Wijaya Sunu ◽  
I Made Rasta
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Heat Transfer Enhancement ◽  
Volume Flow Rate ◽  
Reynold Number ◽  
Transfer Enhancement ◽  
Cold Fluid ◽  
Double Pipe ◽  
Pipe Heat

This investigation was performed to experimentally investigate the enhancement of heat transfer and the friction of an annulus in a double pipe heat exchanger system with rectangular grooves in the turbulent flow regime. The shell is made of acrylic and its diameter is 28 mm. The tube is made of aluminium and its diameter is 20 mm. Grooves were incised in the annulus room with a circumferential pattern, with a groove space of 2 mm, a distance between the grooves of 8mm and a groove height of 0.3 mm. The experiments consist of temperature and pressure measurement and a flow visualization. Throughout the investigation, the cold fluid flowed in the annulus room. The Reynold number of cold fluid varied from about 31981 to 43601 in a counter flow condition. The volume flow rate of hot fluid remains constant with Reynold number about 30904. Result showed the effect of grooves, which are applied in the annulus room. The grooves induce the pressure drop, the pressure drop in the grooved annulus was greater by about 15.88% to 16.72% than the one in the smooth annulus. The total heat transfer enhancement is of 1.09–1.11. Moreover, the use of grooves in the annulus of the heat exchanger not only increase the heat transfer process, but also increase the pressure drop, which is related to the friction factor.

Experimental investigation on heat transfer and pressure drop of MWCNT - Solar glycol based nanofluids in shot peened double pipe heat exchanger

2019 ◽  
Vol 345 ◽  
pp. 815-824 ◽  
Author(s):  
Ganesh Kumar Poongavanam ◽  
Karthik Panchabikesan ◽  
Renuka Murugesan ◽  
Sakthivadivel Duraisamy ◽  
Velraj Ramalingam
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Double Pipe ◽  
Pipe Heat

scholarly journals Heat transfer enhancement of double pipe heat exchanger using rotating of variable eccentricity inner pipe

2018 ◽  
Vol 57 (4) ◽  
pp. 3709-3725 ◽  
Author(s):  
Marwa A.M. Ali ◽  
Wael M. El-Maghlany ◽  
Yehia A. Eldrainy ◽  
Abdelhamid Attia
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Heat Transfer Enhancement ◽  
Transfer Enhancement ◽  
Double Pipe ◽  
Pipe Heat

Heat transfer and pressure drop performance of solar glycol/activated carbon based nanofluids in shot peened double pipe heat exchanger

2019 ◽  
Vol 140 ◽  
pp. 580-591 ◽  
Author(s):  
Ganesh Kumar Poongavanam ◽  
Balaji Kumar ◽  
Sakthivadivel Duraisamy ◽  
Karthik Panchabikesan ◽  
Velraj Ramalingam
Keyword(s):  
Heat Transfer ◽  
Activated Carbon ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Double Pipe ◽  
Pipe Heat ◽  
Carbon Based

Heat transfer and pressure drop characteristics of MgO nanofluid in a double pipe heat exchanger

2019 ◽  
Vol 55 (6) ◽  
pp. 1769-1781 ◽  
Author(s):  
H. Arya ◽  
M. M. Sarafraz ◽  
O. Pourmehran ◽  
M. Arjomandi
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Double Pipe ◽  
Pipe Heat
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