Application of Entransy Dissipation Number as Performance Parameter for Heat Exchanger
Journal Title: INTERNATIONAL JOURNAL OF ENGINEERING TRENDS AND TECHNOLOGY - Year 2014, Vol 12, Issue 6
Abstract
A new physical quantity, entransy has been identified as a basis for optimizing heat transfer processes in terms of the analogy between heat and electrical conduction. This quantity, which will be referred to as entransy, corresponds to the electric energy stored in a capacitor. The entransy is defined as one-half the product of heat capacity and temperature, the effect of entransy consumption rate on the irreversibility of heat transfer process, it can be found that entransy is a state variable, from which a new expression for the second law of thermodynamics is presented; Then by setting entransy consumption rate and power consumption rate as optimization objective and constraint condition for each other. In the heat exchanger, there mainly exist two kinds of irreversibility the first is heat conduction under finite temperature differences and the second is flow friction under finite pressure drops. Hence, rather working on any other aspect we can target to minimize the entransy dissipation number to increase the performance of a heat exchanger. This can be proved experimentally for water -water and oil-water heat exchangers.
Authors and Affiliations
Sushant Puranik , Govind Maheshwari
Keywords
Related Articles
- EP ID EP162975
- DOI -
- Views 98
- Downloads 0
Analysis of Composite Drum Brake Using FEA Approach
The modern development in the field of material technology gave rose to hybrid materials such as composites that paved the way for engineers to explore the possibility of substitute material which can perform effic...
Control for Reliable Fuel Cell Power System with Input Ripple Current Compensation
This paper work is carried out to reduce ripple current which is flow to the fuel cell/Battery through power electronics devices during dc-ac operation. FCs have advantages such as high efficiency, zero or low emission (...
Enhancement of Public Transportation Services Using Wireless Technologies
One of the major issues now a days is controlling of traffic. The main motive in bringing up this paper is to develop a user friendly system for transportation purpose by involving wireless technologies like Zigbee, RFID...
Design and Verification of Serial Peripheral Interface
The objective of this project is to design SPI Master Core using Verilog and verify the code using system verilog. Serial Peripheral Interface (SPI) is an interface that facilitates the transfer of synchronous seri...
Implementation of Turbo Encoder and Decoder
Turbo code has become the coding technique of choice in many communication and storage systems due to its near Shannon limit error correction capability. With requirement on increasing data rates for deep space mission,...