Comparative thermal performance analysis of water, engine coolant oil and MWCNT-W nanofluid in a radiator

Abstract

A comparative experimental investigation for thermal performance analysis of three different coolants flowing in a radiator is presented. Water (W) is used as base fluid for 0.01% volume concentration Multi Walled Carbon Nano Tube (MWCNT) nanoparticle. One step method is used to prepare the MWCNT-Water nanofluid. Cross flow unmixed radiator type heat exchanger is considered for the analysis. Performance of radiator subjected to flow of coolants like MWCNT-W nanofluid, and engine coolant oil are compared with water as coolant. Thermal analysis is conducted for different flow rates of 0.25 lpm (liter per minute), 0.5 lpm and 0.75 lpm. For 0.25, 0.5 and 0.75 lpm flow rate, variation in friction factor, heat transfer coefficient, Nu (Nusselt number), pressure drop and pumping power of these coolants is compared. Among the coolants considered MWCNT-W nanofluid comparatively gives maximum heat transfer enhancement due to its high heat carrying capacity. However MWCNT-W nanofluid consumes more pumping power than the other two coolants due its increased viscosity and pressure drop.

Nusselt number analysis from a battery pack cooled by different fluids and multiple back-propagation modelling using feed-forward networks

“…MWCNT (multi-walled carbon nanotubes), TiO 2 (titanium dioxide), Al 2 O 3 (aluminum dioxide), and CuO (copper oxide) are the nanofluids prepared in water as base fluid with 0.1% volume concentration (%vol. ), and their Pr is obtained based on data from different sources [54][55][56][57]. Fig.…”

An Experimental Study of ZrO2‐CeO2 Hybrid Nanofluid and Response Surface Methodology for the Prediction of Heat Transfer Performance: The New Correlations

“…Table 1 represents the heat transfer value comparison between hybrid ZrO 2 -CeO 2 nanofluids and other fluids. The maximum of 38.16% rise in heat transfer coefficient value is obtained for the 90 W input heat power at 0.1% volume concentration over the single-component fluids (0% concentration) [57][58][59][60][61].…”

Maximum temperature analysis in a Li-ion battery pack cooled by different fluids

“…Multi-walled carbon nanotubes (MWCNT), titanium dioxide (TiO 2 ), aluminum dioxide (Al 2 O 3 ), and copper oxide (CuO) are the nanofluids prepared in water as base fluid with 0.1% volume concentration (vol%), and their Pr is obtained based on data from different sources [38][39][40][41][42][43][44][45][46][47][48][49][50][51].…”