[sub][/sub] Pressure Drop Measurements in Rectangular Micro-Channel Using Gas Flow
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2012, Vol 2, Issue 5
Abstract
Due to the need for practical cooling technologies which could dissipate high heat fluxes, an experimental study of pressure drop in micro-channel was performed. In this work, laminar flow friction factors were determined using gas (air) as flow medium. Pressure drop vs flow rate data were used to evaluate friction factors in two parallel micro-channels, namely MCP1 and MCP2 (1.0 mm deep x 0.240 mm width and 0.9 mm deep x 0.2 mm width, respectively). Each channel of length 192 mm fabricated on a 304 Stainless Steel substrate by chemical milling Reynolds number was covered between 24 – 5398 for MCP1 and 26 – 6233 for MCP2. Transient pressure drops measured within the channel itself to exclude entrance and exit losses. Friction factor – Reynolds number analyses show that the friction constant are identical as normal channels for gas flow in the laminar region. Transition region lies in Re > 500 and transition set off at lower Re ~ 500 in comparison to normal channel. The discontinuity in f – Re data identified as transition. Further, it may be possible to identify transition (from laminar region) as the deviation of non-dimensional pressure drop (NDPD) values.
Authors and Affiliations
R. Kalaivanan, R. Rathnasamy
Keywords
Related Articles
- EP ID EP92821
- DOI -
- Views 118
- Downloads 0
Development of a Thermoelectric Micro generation based on Seebeck Effect
This paper presents a study of the national electric power, showing the Brazil consumes electricity in a year and how much you could save if thermoelectric modules were used in some industries and new cars and plan...
Gully Erosion Control along NWORIE River in Owerri,Imo State-A Deterministic Model Approach
The study developed a model for gully erosion control. The model, helped to predict total soil loss per annum particularly in the catchment area of Nworie river. Other theoretical models were used to compare result...
Optimization of WEDM Process Parameters on Titanium Alloy Using Taguchi Method
This paper describes an optimum cutting parameters for Titanium Grade5 (Ti-6Al-4V) using Wire-cut Electrical Machining Process (WEDM). The response of Volume Material Removal Rate (MRR) and Surface Roughness (Ra)...
Effect of Preform Geometry on the Material Behaviour and the Densification Mechanism during Hot Upset Forging of Sintered AISI 9840 P/M Steel Produced Using Elemental Powders
The present investigation pertains to generate experimental data in order to establish the influence of initial preform geometries on the material behaviour and the operative densification mechanism/s during ho...
MATLAB Simulink for single phase PWM inverter in an uninterrupted power supply
Now a day’s Uninterrupted power supply is very necessary for industry, and domestic purpose. This paper presents the design and implementation of UPS for using personal computer. Here solar energy is used for c...