Hybrid CuO Nanofluid with Enhanced Thermal Conductivity for Engine Coolant Applications

Abstract

An engine coolant (104) composition comprising a hybrid nanofluid, the hybrid nanofluid including:Copper oxide (CuO) nanoparticles (105) dispersed within,A binary organic fluid base consisting of butanol and diethylamine (DEA) (101),wherein the concentration of CuO nanoparticles ranges from 0.01M to 0.06M, and the hybrid nanofluid exhibits enhanced thermal conductivity(106) compared to the binary fluid alone.

Specification

Description:This invention relates to developing an advanced engine coolant designed to enhance the thermal
management of engine systems. The coolant is based on a hybrid nanofluid (104) composed of
copper oxide (CuO) nanoparticles (105) dispersed in a binary organic fluid of butanol and
diethylamine (DEA). The invention leverages the unique thermal properties of CuO nanoparticles
and the specific characteristics of the alcohol-amine base to create a coolant with superior thermal
conductivity, which is critical for efficient heat dissipation in engines. The engine coolant
developed in this invention is a hybrid nanofluid comprising the following components. , Claims:1. An engine coolant composition (104) comprising: a hybrid nanofluid, the hybrid nanofluid
including:Copper oxide (CuO) nanoparticles dispersed within a binary organic fluid base
consisting of butanol and diethylamine (DEA)(101),wherein the concentration of CuO
nanoparticles ranges from 0.01M to 0.06M, and the hybrid nanofluid exhibits enhanced thermal
conductivity compared to the binary fluid alone;
2. An engine coolant composition (104) of Claim 1, wherein the CuO nanoparticles have an
average particle size (105) ranging from 20 to 50 nanometers;
3. An engine coolant composition (104) of Claim 1, wherein the binary fluid (101) is prepared by
mixing butanol and diethylamine (DEA) in a specific mole ratio, optimized to maximize
thermal conductivity;
4. An engine coolant composition (104) of Claim 1, the method comprising: Synthesizing CuO
nanoparticles using a chemical precipitation method (103), Mixing butanol and dimethylamine
(DEA) to form a binary fluid, Dispersing the CuO nanoparticles into the binary fluid under
continuous stirring, employing ultra-sonication to achieve a uniform dispersion of
nanoparticles, resulting in the formation of the hybrid nanofluid;
5. An engine coolant composition (104) of Claim 1 the method of Claim 4, further comprises the
step of adding a surfactant to the hybrid nanofluid to stabilize the dispersion of CuO
nanoparticles and prevent agglomeration;
6. A engine coolant composition (104) of Claim 1, wherein the hybrid nanofluid(104) exhibits
increased thermal conductivity with rising temperature, making it suitable for use in high-
temperature engine applications;
7. An engine cooling system comprising (104) the engine coolant composition of Claim 1,
wherein the coolant (104) is circulated through the engine (107) to dissipate heat, thereby
preventing overheating and improving engine performance;
8. An engine cooling system (104) of Claim 7, wherein the coolant is compatible with existing
engine materials and requires no significant modifications to the engine cooling infrastructure.
9. The use of the engine coolant composition (104) of Claim 1 in automotive, aerospace, or
industrial engine systems to enhance thermal management and engine efficiency and
10. An engine coolant composition (104) of Claim 1, wherein the butanol component provides
antifreeze properties, corrosion inhibition, and environmental compatibility, contributing to the
overall effectiveness and sustainability of the coolant.

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