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Heat Exchanger Design
Problem Statement:
The problem aims at extracting maximum amount of heat from a hot
fluid by the means of a Heat
Exchanger, which is required to be designed by the
participants.
Device Specifications:
The exchanger to be designed will be semi-batch type, in which
hot water will be filled in
beginning, and cold water is supplied continuously. The heat
transfer type will be indirect
contact.
Your prototype must fit in a box of dimensions 30cm* 40cm* 40
cm.
The prototype should not be moved during the course of
operation.
The prototype must have a separate provision for entry and exit
of hot and cold fluids, and
water supply will be provided through a pipe of diameter
inches.
The prototype will be designed for capacity of 2.5 kg of hot
water.
Game Rules:
All the participating teams will be provided with 2.5 kg of hot
water, and a funnel will beprovided for the purpose of filling hot
water into exchanger. The bore of the funnel used
will be .
If the difference between the mass of hot water fed and
recovered at the end of the process
exceeds by 30 grams, the team will be disqualified. Also, a
proper mechanism must be
provided for filling and withdrawing hot water in the
device.
Tap water will be used as the source of cold water, and during
the entire run the volumetric
flow rate will be kept constant for all teams.
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The teams will be asked to get ready 15 minutes before the start
of their competition.
Note that only one trial run will be given for the teams around
the competition arena.
The run time will be declared at the start of the event.
Judging Criteria:
Judging will be carried out on the basis of two Stages:-
Stage 1:-
Presentation Round (30 points)
a) Presentation should be given by the team with the autonomous
Heat Exchanger on the day of
competition in front of the judges. The presentation should
describe the design of Heat Exchanger
for its efficacy, innovation and theoretical soundness.
b) Presentation should be given prior to the Performance
competition of Heat Exchanger. Team
members should be present during judging to answer questions
from the judges.
c) The presentation round consists a total of 30 points.
Presentation will be judged according to
the following criteria:-
Design of the Heat Exchanger for its efficacy, innovation,
creativity, theoretical soundness
and it's unique features (13 points)
Description of the Heat Exchange between the hot water and cold
water (7 points)
Safety measures and precautions taken (5 points)
Team member presentations (5 points)
Stage:-
Performance of Heat Exchanger (70% points)
Measurements of the following quantities will be made.
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Inlet Temperature of hot waterTi
Exit Temperature of hot water Te
Time taken between the hot water fed and recovered
Mass of hot waterM
Total Heat Transfer: M( Ti Te )Cp
Points will be calculated by the above expression
DECIDING THE WINNER:
The team which gets a total of maximum points during these two
stages is declared as the winner
and also the difference between the mass of hot water fed and
recovered at the end of the
process should not exceed by 30 grams.
In case of tie prototype, team with higher temperature
difference (Ti Te ) will win.
General Rules:
A team should consists of a maximum of4 members.
Each team must give a name for their Heat Exchanger at the time
of competition.
All the Heat Exchanger will be first checked for the safety
before the start of the
competition.
The machine must not contain any dangerous material for safety
reasons.
Judges have the right to disqualify any team whose working
mechanism or game strategy
is considered hazardous in any way.
Cognizance reserves full right for change in any of the above
mentioned rules, and any
change occurring will be displayed on website.
In case of any dispute arises the decision of judges will be
considered final and binding to
all and no argument will be entertained under any
circumstances.
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VIOLATION AND DISQUALIFICATION:
a. No team is allowed to hinder the functioning of Heat
Exchanger of other participating teams.
Failing to do so will straight away lead to
disqualification.
b. No team is allowed to touch directly or indirectly the Heat
Exchanger of other participating
teams. Failing to do so will straight away lead to
disqualification.
c. Judges have the right to disqualify any team if they feel the
team is not playing with fair
interests.
Participation:
All the students enrolled in high school, undergraduate or
masters student of any
discipline at any recognized institute are eligible to
participate in this event.
Participants must register on Cognizance website. It is
compulsory for all the participants
to register there to participate in any event in Cognizance.
All the willing participants are needed to send a brief
description of their design alongwith diagram to
[email protected].
The last date for submission of design is 15th February 2013.
The word limit for the
abstract is 500.
Team Details include:
Name (Highlight team leaders name)
E-mail IDs
Contact Number
College Name with contact details
Branch, Year
City
Cogni ids of all team members
mailto:[email protected]:[email protected]
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REGISTRATION PROCEDURE
The registration shall be done through the Cognizance
website.
Steps
1. Each Member needs to register on the website. This will
generate a unique cogni id.
2. The Team Leader (which you will select yourself) needs to
login into the website through his
username and password.
3. ThePrototype
event page has the tab
Register
to register the team for the event.
4. This will generate your Team Id and a mail shall be sent to
the mail id of team leader about the
registration.
For any queries contact:
Sunny Methani Yash Agrawal
Co-Convenor Manager EventsDepartment of Chemical Engineering
Department of Chemical Engineering
+91-7669613772 +91-7895661473
Or mail us at [email protected]
mailto:[email protected]:[email protected]:[email protected]:[email protected]
