Cost-Effective Techniques for Enhancing Heat Transfer Rate in Steam Condensation

2005 ◽  
Vol 19 (1) ◽  
pp. 101-105 ◽  
Author(s):  
S. Vemuri ◽  
K. J. Kim ◽  
A. Razani ◽  
T. W. Bell ◽  
B. D. Wood
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Cost Effective ◽  
Steam Condensation ◽  
Enhancing Heat Transfer

Enhancing heat transfer rate in a car radiator by using Al2O3 nanofluid as a coolant

2017 ◽  
Vol 40 (4) ◽  
pp. 367-373 ◽  
Author(s):  
T. Arunkumar ◽  
M. Anish ◽  
J. Jayaprabakar ◽  
N. Beemkumar
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Enhancing Heat Transfer ◽  
Al2o3 Nanofluid

Enhancing heat transfer rate in heat exchanger using nano particles of the natural Glay

2020 ◽  
Vol 33 ◽  
pp. 4402-4407
Author(s):  
D. Muruganandam ◽  
J. Jayapriya ◽  
G. Ramakrishnan ◽  
G. Puthilibai ◽  
P. Karthick ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Nano Particles ◽  
Enhancing Heat Transfer

scholarly journals A REVIEW ON HEAT TRANSFER FROM DIFFERENT SHAPED FINS

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Abhinandan Jain ◽  
P K Upadhyay ◽  
Jitendra Singh Chouhan
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Rate ◽  
Heat Sink ◽  
Transfer Rate ◽  
Cost Effective ◽  
Industrial Applications ◽  
Heat Sinks ◽  
Manufacturing Cost ◽  
Automotive Components ◽  
Reliable Solution

Heat sinks with fins are generally used to enhance the heat transfer rate in many industrial applications such as cooling of electronic, power electronic, telecommunication and automotive components. In many situations where heat transfer is by natural convection fins offer economical and trouble free solutions. The weight and volume of the equipment are the most important parameters of design. Now days the general trend is to use compact systems especially in electronic field which leads to higher packing density of systems causing higher heat generation. It affects the performance of system and may cause the system failure. The most preferred method for cooling electronic and telecommunications devices is passive cooling since it is cost effective and reliable solution. It doesn’t require costly enhancing devices. This features leads to focus on development of efficient fin heat sink. The important element that defines the geometry of the heat sink is its fins. The fins generally used in industry are straight, circular and pin shaped. The objective of this work is review on the heat transfer rate by different shaped fins in different systems. The proper selection of the interruption length increases the heat transfer rate and in addition providing fin interruptions results in considerable weight reduction that can lead to lower manufacturing cost.

Design of Cost-Effective Water-Cooled Pinfin Heatsinks

2013 ◽  
Author(s):  
Keisuke Horiuchi ◽  
Atsuo Nishihara ◽  
Kazuyuki Sugimura
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Cost Effective ◽  
Objective Functions ◽  
Multi Objective Optimization ◽  
Design Variables ◽  
The Relationship ◽  
Effective Water

This paper presents the multi-objective optimization of cost-effective pinfin heatsinks. Heat transfer rate and pressure drop were the objective functions, and four parameters (height, diameter, longitudinal pitch, and transverse pitch) were the design variables. The relationship between the objective functions and the design variables for pinfin heatsink was calculated by using our own empirical equations using the aspect ratio and the minimum gap considering cost-effectiveness and manufacturability. Non-dominated solutions to the objective functions were illustrated, and we derived the design rules for design variables. We found the similarity of the optimum trade-off curves between the heat transfer rate and the pressure drop if the multiplication of the height and the minimum gap were the same for the different constraints. We validated our calculated solutions by comparing them with experimental results and attained reasonable agreement between the calculation and experiment.

scholarly journals A Review on Heat Transfer Enhancement of Solar Air Heater Using Various Artificial Roughed Geometries

2021 ◽  
Vol 89 (1) ◽  
pp. 92-133
Author(s):  
Sudharani Panda ◽  
Rakesh Kumar
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Heated Surface ◽  
Cost Effective ◽  
Solar Air Heater ◽  
Artificial Roughness ◽  
Air Heater

Solar air heater acts as one of the important components in utilization of solar energy. The air heater absorbs the irradiance and converts it into heat energy at the absorbing surface. The thermal energy is further use in heating flowing air through the duct. Solar air heaters are cost effective as well as simple in design. Solar air heater can be used in space heating, timber seasoning and agricultural drying. In spite of all these advantages the solar air heater has certain challenges such as the air has low heat transfer coefficient. The heat transfer rate from the heated absorber surface to the air is low. Hence in order to enhance the heat transfer coefficient the surface area either increases or the flow made to be turbulent. In order to do so the artificial roughened element must be incorporated on the heated surface. The use of artificial roughness is considered as an effective technique to enhance the heat transfer rate of fluid flowing through the duct of solar air heater. The heat transfer and friction characteristics of number of roughness geometries incorporated solar air heater have been investigated. In this paper an attempt has been made to review on element geometries used as artificial roughness in solar air heater in order to improve thermal and thermo hydraulic performance of solar air heater ducts.

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