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Optimization of Inlet ducts for Server Room Cooling System |
The server room cooling system
consists of four air handling units, which supplies cold air to
the room through ducts. The Capacity of all the air handling
units is not the same, due to which the cold air entering the room
is not uniformly distributed. The aim of the project was to
optimize the profile and the number of baffles such that the
flow is uniform at the duct outlets and also automate the
geometry, mesh generation & solver processes for a 2D Case with
Multi-file handling and C-Programming.
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Preprocessor : GAMBIT
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Solver
: Fluent
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Modeling Of Automotive Diesel Engine At Various
Fuel Injection Times To Analyze Forthcoming Emission Norms
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This project
consists of modeling and analysis of diesel engine for
various fuel injection times using FLUENT 6.2.16 which is
implemented in a full cycle of engine. GAMBIT 2.3.16 was used
as the preprocessing tool. In this project, domain was divided
into several fluid zones. Few zones were meshed with
quadrilateral elements and the remaining zones with triangular elements. Further, the area above the valve
has non-conformal interfaces. Unsteady segregated solver
along with k-epsilon turbulence model was used. Discrete
Phase Model was employed for simulating the fuel injection,
evaporation, and droplet boiling. Analysis of the results
for various injection times was done by post processing.
Following
steps were followed during this project:
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Build
the required geometry and mesh it with tet and quad elements
in GAMBIT.
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Define
unsteady segregated solver, k-epsilon viscous model,
injection model and boundary conditions
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Defined
grid interface and dynamic mesh parameters, events and
zones for mesh motion
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Analyzing
the results for various fuel injection timing in the FLUENT
solver
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CFD Analysis of RMF (Raised Metal Floor) Data Center
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The
deployment of computer systems in large number and in
very dense configurations in data centers has resulted in
very high power densities at room level. Due to such
high heat loads, designing an Air-conditioning system
for a data center using simple energy balance is no
longer adequate. Moreover the data center design cannot
rely on intuitive design of air distribution. It is
necessary to model the airflow and temperature
distribution in a data center.
Our
modeling focus is to locate "Hot spots" and it
is equally
important to analyze the airflow and temperature inside each server rack and
for the overall room.
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CFD Analysis of Climate Control Seat
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Project
involves design and optimization of Climate Control Seat
(CCS). The CCS consists of Thermoelectric Cooling (TEC)
unit fixed under the car seat. Depending on occupant's
requirement hot or cold air is supplied through channels
from the TEC unit to the CCS. GAMBIT and FLUENT were used for
modeling and analysis of air the flow and temperature
distribution of the CCS. For this analysis, porous media
model from FLUENT was used. Based on the results, air
distribution channel locations were fixed.
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Modeling of fluidized bed coal furnace for
heating of a thermic fluid
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This
project involves modeling and analysis of coal
furnace for the heating of a thermic fluid, using FLUENT
6.2.16. The project was intended to design geometry
configuration and primary to secondary air ratio.
Further stage is to study the influence of the particle size
and coal feeder. The project was carried out in
the following stages:
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CFD analysis for "Automatic climate control
for passenger car HVAC"
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In extreme
climatic conditions, to create and
maintain a comfortable indoor climate for all
occupants in a car is difficult and a critical
task in car HVAC design. Controllable parameters
which influence the indoor climate are the inlet
air temperature, and the distribution of air. If
the temperature of the human body surface is
monitored, the inlet temperature condition can
be changed accordingly so as to control
temperature in the car. This project was aimed
to simulate such kinds of flow. User Defined
Function (UDF) in Fluent was used to monitor the
temperature on the human body surface. The
project was carried out in the following
way:
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Building
the required geometry in GAMBIT 2.3.16.
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Hex mesh
generation in GAMBIT 2.3.16, Tgrid 4.0.16
and ICEM CFD
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Problem
solved using Fluent 6.2.16 with UDF
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Selection of
the appropriate turbulence model
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Selection of
proper conjugate heat transfer model
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Soot and NOx Modeling for Light duty DI
diesel Engine
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Soot and NOx
modeling is used to predict the behavior of
the emission which can help to mitigate the
emission affecting parameters. Our project
analyzed the simulation of combustion
chamber. The break-up considered by us is as
follows:
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