Table 2

Controlled and variable parameters

The tubes were arranged in a staggered

Operating temperature of 60,70 and 80°C

The controlled parameters

Silver nanofluid concentration of 0.5 w/v%

Volumetric flow rate was 5 l/min in evaporator section

Cool water flow was 25°C in condenser section

Working fluid = pure water, silver nanofluid concentration of 0.5 w/v% and silver nanofluid concentration of 0.5 w/v% mixed oleic acid surfactant

The variable parameters

Concentration of oleic acid surfactant were 0.5, 1, 1.5 w/v%

Volumetric flow rate were 1, 2, 5 l/min in condenser section

Filling ratio = 30, 50, and 80% (by total length of evaporator)


Parametthanuwat et al. Nanoscale Research Letters 2011 6:315   doi:10.1186/1556-276X-6-315

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