Description:METHOD TO OPTIMIZE HEAT TRANSFER AND REDUCING ENERGY CONSUMPTION FOR COOLING IN RADIATOR
Field of Invention
The present invention pertains to computational fluid dynamics (CFD) analysis using Ansys Fluent software to evaluate the effectiveness of magnesium oxide and silver nanofluids in radiators. Subsequently, a comparison was made between the results obtained from the aforementioned approach and those derived from a traditional aqueous system.
Background of the Invention
Several studies demonstrated the utilisation of heat pipes in the radiator of a vehicle's engine as a means of augmenting the heat transfer rate (US5383518A). The integration of heat pipes can enhance the cooling efficacy of radiators in the context of bigger automobiles, concurrently curbing the energy consumption of cooling fans to promote superior energy efficiency. The aforementioned heat pipes, which consist of two-phase closed thermosyphons, are thermal management components that exhibit superior heat conductivity compared to copper. In the realm of terrestrial applications, the force of gravity is frequently employed as a means to promote the motion of fluid condensate, thereby obviating the necessity for a wick configuration within the heat pipes (US5725051A). The overall heat transfer coefficient of CuO/water Nanofluid under laminar flow conditions (100 ≤ Re ≤ 1000) in a car radiator was experimentally investigated. The nanofluids utilized in the experiments were stabilised through the implementation of diverse pH levels and suitable surfactants. The findings indicate that the total heat transfer coefficient is greater when utilising Nano fluids compared to the base liquid (US6032730A). Moreover, it can be observed that the total heat transfer coefficient experiences an increment as the concentration of Nano fluids rises from 0 to 0.4 volume percent. The utilisation of "nanofluids" as a superior alternative to traditional automobile engine coolants was investigated. An investigation was carried out to evaluate the performance enhancement of a volume blade tube automobile radiator using nanofluids as coolants through experimental and theoretical analyses. The study examined different operating parameters utilising Cu, SiC, and Al2O3, in addition to TiO2 nanofluids, which were dispersed in a liquid base consisting of 80% water and 20% ethylene glycol. The application of nanofluids as a coolant in radiators results in improved efficiency and cooling capability, accompanied by a decrease in pumping power (US20050077637A1). The experimental results indicate that the nanofluids subjected to testing demonstrated varying degrees of performance in the radiator with plate blade geometry. Specifically, the SiC-80% H2O-20% EG (base liquid) exhibited the most favourable performance, followed by the Al2O3-base liquid, TiO2-base liquid, and Cu-base liquid. The utilisation of SiC resulted in a cooling enhancement of 18.36%, whereas Al2O3 exhibited a cooling improvement of 17.39%, TiO2 showed 17.05%, and Cu demonstrated a cooling enhancement of 13.41% when employed as coolants. According to the present analysis, it has been demonstrated that the utilisation of nanofluids as a coolant in automotive radiators can significantly improve their performance.
Summary of the Invention
In light of the above mentioned drawbacks in the prior art, in the present invention, a computational fluid dynamics (CFD) analysis was performed using Ansys Fluent software to evaluate the effectiveness of magnesium oxide and silver nanofluids in radiators.
A further specific objective of the invention is to compare the results obtained from the aforementioned approach with those derived from a traditional aqueous system.
Brief Description of Drawings
The invention will be described in detail with reference to the exemplary embodiments shown in the figures, wherein:
Figure 1 CFD analysis on Static Pressure
Figure 2 CFD analysis on Static Temperature
Figure 3 CFD analysis on Heat Transfer Coefficient
Detailed Description of the Invention
In order to streamline the research process, a three-dimensional model of the radiator has been generated through the utilisation of CREO Parametric software. The examination of the radiator encompasses two primary facets, namely, the computational fluid dynamics (CFD) analysis and the thermal analysis. Computational Fluid Dynamics (CFD) analysis is performed on all the fluids being studied in order to assess their efficacy within the radiator system. Conversely, ANSYS software is utilised for thermal analysis to acquire a deeper understanding of the heat transfer properties exhibited by distinct fluids. The findings derived from the computational fluid dynamics (CFD) analysis demonstrate that augmenting the mass flow input results in elevated heat transfer coefficient values across all examined fluids. The heat transfer coefficient of the silver nano fluid exhibits a notably higher value in comparison to the other tested fluids. The findings indicate that the silver nano fluid demonstrates enhanced heat transfer characteristics in the radiator system, thereby presenting a viable avenue for enhancing cooling efficacy. Furthermore, the study examines diverse radiator geometries in addition to evaluating the efficacy of distinct fluids. Out of the geometries that were analysed, the helical type tube radiator exhibits the most elevated value of heat transfer rate. The results indicate that the utilisation of a helical tube configuration provides superior heat dissipation properties, rendering it a prime alternative for attaining effective cooling functionality within a radiator setup. This study offers significant insights into the efficacy of NANO fluids when used in conjunction with water as a base fluid in radiators, through comprehensive computational fluid dynamics and thermal analyses. The findings underscore the enhanced heat transfer properties of silver nanoparticles suspended in a fluid medium, as well as the favourable attributes of a radiator design featuring helical tubes. The aforementioned discoveries enhance the comprehension of radiator efficiency and can provide direction for the advancement of superior cooling mechanisms in diverse contexts. Additionally, the study explores the impact of different mass flow rates on the heat transfer coefficient. A noteworthy enhancement in the heat transfer coefficient values was observed across all fluids investigated upon augmenting the mass flow input. The aforementioned discovery underscores the significance of fine-tuning the flow rate in the radiator system with the aim of augmenting heat dissipation and elevating the overall cooling efficacy. This research delves into the examination of various radiator geometries through a comparative analysis, which is a crucial aspect of the study. Out of the assessed designs, the helical tube radiator stands out as the most efficient model in regards to its heat transfer rate. The helical structure demonstrates enhanced heat transfer efficiency owing to its increased surface area and augmented turbulence, which enables effective heat exchange between the fluid and the ambient surroundings. The findings suggest that the implementation of the helical tube design has significant potential in optimising cooling efficiency. Therefore, it is recommended to take this design into account when developing or enhancing radiator systems. The utilisation of computational fluid dynamics (CFD) analysis and thermal analysis via ANSYS software offers an extensive comprehension of the fluid dynamics and heat transfer mechanisms within the radiator system. This knowledge facilitates the optimisation of radiator performance and efficiency, resulting in better temperature regulation and superior cooling proficiency. The study's results underscore the potential efficacy of NANO fluids, specifically silver nano fluid, in augmenting thermal conductivity in radiator systems. The silver nano fluid's elevated heat transfer coefficient implies its capacity to effectively dissipate heat, rendering it a desirable option for applications necessitating improved cooling performance. In general, this study makes a scholarly contribution to the continuous progress in radiator technology through the assessment of the efficacy of different fluids and radiator configurations. The findings derived from the investigation have the potential to provide direction to engineers and researchers in the enhancement of cooling systems' efficiency. This can facilitate the process of making informed decisions regarding the selection of fluids and the design of radiator configurations. The primary objective is to enhance the overall cooling efficacy, avert overheating, and guarantee the optimal operation of various systems, including but not limited to automotive engines, power plants, and industrial machinery.
4 Claims & 3 Figures , Claims:The scope of the invention is defined by the following claims:

Claim:
1. A method to optimize heat transfer and reducing energy consumption for cooling using magnesium oxide and silver nano fluids in radiator exhibited following characteristics:
a) The fluids exhibit enhanced heat retention characteristics, surpassing mere cooling capabilities.
b) The engine can be adequately regulated to a consistent temperature in adverse weather conditions, including extreme heat or cold temperatures.
2. As mentioned in claim 1, the helical structure enhanced heat transfer efficiency owing to its increased surface area and augmented turbulence, which enables effective heat exchange between the fluid and the ambient surroundings.
3. As mentioned in claim 1, engine performance and fuel efficiency not only results in an improvement of the overall system but also plays a significant role in extending the lifespan of the engine.
4. As mentioned in claim 1, the eco-friendly characteristics of these fluids distinguish them from others. Due to their minimal toxicity and biodegradability, these materials are a conscientious option for individuals who prioritise environmental sustainability.