ANALYTICAL AND EXPERIMENTAL HEAT TRANSFER STUDIES IN A SPIRAL PLATE HEAT EXCHANGER

1970 ◽  
Author(s):  
Ralph A. Buonopane ◽  
Ralph A. Troupe
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Plate Heat Exchanger ◽  
Plate Heat ◽  
Experimental Heat ◽  
Experimental Heat Transfer ◽  
Spiral Plate

Experimental Study of Turbulent Flow Heat Transfer and Pressure Drop in a Plate Heat Exchanger With Chevron Plates

1999 ◽  
Vol 121 (1) ◽  
pp. 110-117 ◽  
Author(s):  
A. Muley ◽  
R. M. Manglik
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Flat Plate ◽  
Plate Heat Exchanger ◽  
Plate Heat ◽  
Experimental Heat ◽  
Experimental Heat Transfer ◽  
Flow Heat ◽  
Phase Water

Experimental heat transfer and isothermal pressure drop data for single-phase water flows in a plate heat exchanger (PHE) with chevron plates are presented. In a single-pass U-type counterflow PHE, three different chevron plate arrangements are considered: two symmetric plate arrangements with β = 30 deg/30 deg and 60 deg/60 deg, and one mixed-plate arrangement with β = 30 deg/60 deg. For water (2 < Pr < 6) flow rates in the 600 < Re < 104 regime, data for Nu and f are presented. The results show significant effects of both the chevron angle β and surface area enlargement factor φ. As β increases, and compared to a flat-plate pack, up to two to five times higher Nu are obtained; the concomitant f, however, are 13 to 44 times higher. Increasing φ also has a similar, though smaller effect. Based on experimental data for Re a 7000 and 30 deg ≤ β ≤ 60 deg, predictive correlations of the form Nu = C1,(β) D1(φ) Rep1(β)Pr1/3(μ/μw)0.14 and f = C2(β) D2(φ) Rep2(β) are devised. Finally, at constant pumping power, and depending upon Re, β, and φ, the heat transfer is found to be enhanced by up to 2.8 times that in an equivalent flat-plate channel.

scholarly journals Experimental heat transfer studies on copper nanofluids in a plate heat exchanger

2020 ◽  
pp. 20-20
Author(s):  
Manikandan Periasamy ◽  
Rajoo Baskar
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Copper Nanoparticles ◽  
Base Fluid ◽  
Sol Gel ◽  
Plate Heat Exchanger ◽  
Nanoparticle Concentration ◽  
Plate Heat ◽  
Experimental Heat ◽  
Experimental Heat Transfer

The objective of the present work is to study the influence of Copper nanoparticle concentration on heat transfer performance of mixed base fluid. In the present study, the performance of copper nanoparticles in (Ethylene Glycol (EG) + Propylene Glycol (PG) + Water (W)) base fluid was analyzed in the chevron-type Plate Heat Exchanger. The sol-gel method was used to prepare Copper nanoparticles (100 nm); dispersed in two different mixed base fluids of volume fractions 5%EG + 5%PG + 90%W and 15%EG +5%PG +80%W. Experiments were performed by varying the nanoparticle concentration from 0.2 to 1.0 vol %. Three different hot fluid inlet temperatures were used (55?C, 65?C and 75?C). It is revealed from the study that the rate of heat transfer increased significantly with the mixed base fluid. Result shows that at 75?C, 9%, and 14.9% enhancement in Nusselt number is obtained for 5%EG + 5%PG + 90%W and 15%EG +5%PG +80%W base fluid respectively for the nanoparticle concentration of 1%.

Experimental Investigation of Single-Phase Heat Transfer in a Plate Heat Exchanger

2015 ◽  
Vol 7 (4) ◽  
Author(s):  
Tariq S. Khan ◽  
Mohammad S. Khan ◽  
Zahid H. Ayub
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Data Reduction ◽  
Current Data ◽  
Plate Heat Exchanger ◽  
Plate Heat ◽  
Experimental Heat ◽  
Experimental Heat Transfer ◽  
Wilson Plot ◽  
Data Reduction Technique

The present experimental study is carried out to verify previously published heat transfer results attained using a simpler yet nascent data reduction technique for the same plate heat exchanger. A gasketed, commercially available plate heat exchanger with mixed (30/60) plate configuration was used in this study to obtain experimental heat transfer coefficient using modified Wilson plot method for data reduction. The comparison between current data and previously published results has shown excellent agreement between the two techniques hence verifying the results of the simpler method used earlier.

scholarly journals Experimental and numerical studies of a spiral plate heat exchanger

2014 ◽  
Vol 18 (4) ◽  
pp. 1355-1360 ◽  
Author(s):  
Rajavel Rangasamy
Keyword(s):  
Heat Transfer ◽  
Nusselt Number ◽  
Heat Exchanger ◽  
Numerical Study ◽  
Numerical Models ◽  
Plate Heat Exchanger ◽  
Test Fluid ◽  
Plate Heat ◽  
Plate Spacing ◽  
Spiral Plate

An experimental and numerical study of heat transfer and flow characteristics of spiral plate heat exchanger was carried out. The effects of geometrical aspects of the spiral plate heat exchanger and fluid properties on the heat transfer characteristics were also studied. Three spiral plate heat exchangers with different plate spacing (4mm, 5mm and 6 mm) were designed, fabricated and tested. Physical models have been experimented for different process fluids and flow conditions. Water is taken as test fluid. The effect of mass flow rate and Reynolds number on heat transfer coefficient has been studied. Correlation has been developed to predict Nusselt numbers. Numerical models have been simulated using CFD software package FLUENT 6.3.26. The numerical Nusselt number have been calculated and compared with that of experimental Nusselt number.

scholarly journals Heat transfer studies on spiral plate heat exchanger

2008 ◽  
Vol 12 (3) ◽  
pp. 85-90 ◽  
Author(s):  
Rangasamy Rajavel ◽  
Kaliannagounder Saravanan
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Plate Heat Exchanger ◽  
Hot Water ◽  
Plate Heat ◽  
Cold Fluid ◽  
Spiral Plate

In this paper, the heat transfer coefficients in a spiral plate heat exchanger are investigated. The test section consists of a plate of width 0.3150 m, thickness 0.001 m and mean hydraulic diameter of 0.01 m. The mass flow rate of hot water (hot fluid) is varying from 0.5 to 0.8 kg/s and the mass flow rate of cold water (cold fluid) varies from 0.4 to 0.7 kg/s. Experiments have been conducted by varying the mass flow rate, temperature, and pressure of cold fluid, keeping the mass flow rate of hot fluid constant. The effects of relevant parameters on spiral plate heat exchanger are investigated. The data obtained from the experimental study are compared with the theoretical data. Besides, a new correlation for the Nusselt number which can be used for practical applications is proposed.

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