Heat Enhancement Of Heat Exchanger Using Aluminium Oxide(Al2o3), Copper Oxide(Cuo)Nano Fluids With Different Concentrations

2018 ◽  
Vol 5 (2) ◽  
pp. 6481-6488 ◽  
Author(s):  
Naseema ◽  
S. NawazishMehdia ◽  
M. Manzoor Hussain ◽  
Syed Khader Basha ◽  
Mohd. Abdul Samad
Keyword(s):  
Heat Exchanger ◽  
Copper Oxide ◽  
Aluminium Oxide ◽  
Nano Fluids

scholarly journals Heat Transfer and Friction Factor Characteristics of Heat Exchanger using Aluminium Oxide and Titanium Oxide

2019 ◽  
Vol 8 (3) ◽  
pp. 2950-2952
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Heat Flow ◽  
Titanium Oxide ◽  
Flow Rate ◽  
Liquid Flow ◽  
Aluminium Oxide ◽  
Plain Water ◽  
Heat Flow Rate ◽  
Nano Fluids

t A heat flow and fluid flow investigation of double tube heat exchanger by means of warped tape insert under the mixing water based nano fluids. In this article Aluminium oxide and Titanium oxide was used to get better performance heat exchanging device. A different mass flow rate of fluids used to conduct the experiment and gathered various surface temperature for analyses the heat flow augmentation. A heat flow rate Nano fluids 10 to 12% was enhanced compare with the plain base water. A heat flow with liquid flow Aluminum oxide was enhanced with +8% compare with the plain base water. A heat transfer characteristics titanium oxide were augment with raise of Re and 12% was augmented compare with the plain water. However heat flow and liquid flow heat exchanging device was increasing with volume of Nano fluids increased and leading to friction facto

scholarly journals Effect of copper oxide nano fluids as coolant on thermal performance of spiral heat exchanger

2021 ◽  
Vol 1189 (1) ◽  
pp. 012037
Author(s):  
Abdul Razak Kaladgi ◽  
K. C. Vishwanath ◽  
P. Madhu ◽  
A. Chandrashekar ◽  
B. V. Chaluvaraju
Keyword(s):  
Heat Exchanger ◽  
Copper Oxide ◽  
Thermal Performance ◽  
Spiral Heat Exchanger ◽  
Effect Of Copper ◽  
Nano Fluids

Effect of Variable Compression Ratio on Performance and Emissions in Compression Ignition Engine Fuelled with Waste Cooking Oil with Copper Oxide Nano Fluid Blends

2021 ◽  
Vol 13 (3) ◽  
Author(s):  
Durai Kumaran ◽  
S.P. Sundar Singh Sivam
Keyword(s):  
Waste Management ◽  
Copper Oxide ◽  
Compression Ratio ◽  
Alternative Fuels ◽  
Waste Cooking Oil ◽  
Compression Ignition ◽  
Variable Compression Ratio ◽  
Cooking Oil ◽  
Nano Fluids ◽  
Variable Compression

One of the challenging issues in the world today is waste management. Improper waste management could be the main source of environmental pollution. In this context, an attempt has been made to prevent the disposal of large quantities of Waste Cooking Oil (WCO) from hotels and restaurants and utilize them as a fuel in diesel engines. WCO is one of the viable alternative fuels, used by researchers in Compression Ignition (CI) engines due to its low cost, no toxicity, biodegradability and renewability. In this research, copper oxide (CuO) nano fluids were prepared by an one-step chemical synthesis method in different mass fractions of 15 ppm, 25 ppm, 35ppm and 50 ppm and blended with WCO. Based on the fuel stability, WCOCN25 and WCOCN50 test fuels are considered. The diesel and WCO were considered as base fuels. A fully equipped, single cylinder, four stroke, water cooled, direct injection, variable compression ratio diesel engine was used for experimentation. The compression ratio of the engine was varied from 16:1 to 18:1. The engine was loaded at different loading conditions by an eddy current dynamometer to measure the performance and emission parameters for the test fuels. The experimental results have shown that the addition of CuO nano fluids and increasing the compression ratio improved the Brake Thermal Efficiency (BTE) of the engine. It is observed that the combustion parameters have been improved due to the higher ignition delay and catalytic activity of CuO nano fluids. In addition, CuO nano fluids have a major role in controlling hydrocarbon (HC), carbon monoxide (CO), oxides of nitrogen (NOx) and smoke emissions.

Heat Transfer Effect of CNT and Ethylene Glycol Based Nano-Fluid in Twisted Tape Heat Exchanger with Balls

2020 ◽  
Vol 12 (4) ◽  
Author(s):  
R. Saravanan ◽  
M. Karuppasamy ◽  
M. Chandrasekaran ◽  
V. Muthuraman
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Ethylene Glycol ◽  
Heat Exchangers ◽  
Twisted Tape ◽  
Heat Transfer Fluids ◽  
Nano Fluid ◽  
Carbon Nano Tubes ◽  
Heat Transfer Improvement ◽  
Nano Fluids

Heat transfer improvement is the main parameter in a heat exchanging equipment. Few methods to increase the coefficient of heat transfer is by creating the turbulence in heat exchanging elements and changing the heat transfer fluids. For current analysis of tube heat exchangers, tape inserts containing balls are implemented with nano-fluids in Carbon Nano Tubes (CNT) and ethylene glycol. 3D modelling and simulation of twisted tape heat exchanger with balls were carried out using Solidworks and ANSYS Workbench. Heat transfer rate, friction factor, temperature difference in the heat exchangers, Reynolds number and Nusselt number variations are assessed in this work.

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