jet engine design competition terms and conditions

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JET ENGINE DESIGN

COMPETITION TERMS AND CONDITIONS

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TABLE OF CONTENTS

1. General Content and Details of Competition ..................................................................... 5

2. Technical Specifications of The Jet Engine and Limitations ............................................. 6

2.1. Physical Limitation for The Engine ................................................................................ 6

2.2. Engine Performance Limitations ..................................................................................... 7

2.2.1. Design Point Requirements ...................................................................................... 7

2.2.2. Off-Design Point Requirements ............................................................................... 9

3. Competition Schedule, Scoring, and Evaluation ................................................................ 9

3.1. Competition Schedule ................................................................................................... 10

3.2. Conceptual Design Report ............................................................................................ 10

3.3. Detail Design Report ..................................................................................................... 11

3.4. Scoring and Evaluation ................................................................................................. 12

3.4.1. Scoring and Evaluation of Reports ......................................................................... 12

3.4.2. Scoring and Evaluation of Presentations ................................................................ 13

3.4.3. Total Score .............................................................................................................. 13

4. Awards .............................................................................................................................. 14

4.1 Minimum Success Criteria for Award Ranking ............................................................. 14

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FIGURES

Figure 1 Engine Boundary Dimensions ..................................................................................... 7

Figure 2 Overall Temperature Distribution Factor .................................................................... 8

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TABLES

Table 1 Turbine Blade Materials and Maximum Service Temperature .................................... 6

Table 2 Design Requirements .................................................................................................... 7

Table 3 Design Point Inputs ....................................................................................................... 8

Table 4 Design Point Requirements .......................................................................................... 9

Table 5 Off-Design Point Inputs ................................................................................................ 9

Table 6 Off-Design Point Requirements (5000 m; 0.8 Mach) ................................................... 9

Table 7 Competition Schedule ................................................................................................. 10

Table 8 Scoring criteria for Conceptual Design Report ........................................................... 13

Table 9 Scoring criteria for Detail Design Report ................................................................... 13

Table 10 Evaluation criteria for Presentations ......................................................................... 13

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1. General Content and Details of Competition

The competition is aimed at undergraduate and graduate students. The purpose of the

competition is to help students improve their skills by growing their interest in gas turbine

engine technologies of the aviation industry.

This document sets out all the rules and requirements of the Jet Engine Design Competition

organized as part of the TEKNOFEST Aerospace and Technology Festival (TEKNOFEST)

Technology Competitions. The goal of the competition is to create the conceptual design of a

turbojet engine that produces 150 lbs of thrust. The participating teams of the competition are

expected to create the conceptual design of a turbojet engine that meets the design criteria

specified in this document and prepare a design report. The general content of this document

consists of the competition rules, design goals, and limitations.

1.1 Participation Conditions

Undergraduate, graduate, and post-graduate students may participate in the

competetion individually or as a team.

The travel and accommodation support provided to the finalists is limited. The number

of persons to be supported will be communicated to teams by the TEKNOFEST

Competitions Committee at a later date.

The TEKNOFEST Competitions Committee has the authority to limit the number of

members who can be present in the festival area. In case of a limitation, the Committee

will inform the teams about such limitation.

A team may consist of a maximum of 5 persons plus the consultant.

The consultant should not be declared as a team member.

One person cannot be a member of multiple teams.

One consultant may only provide consultancy to a single team.

The application form must be filled out by 15 March 2021. Each participating team of the

competition will be allowed to submit a single design. Teams can consist of a maximum of 5

individuals.

Applications will be received via the official website of the TEKNOFEST Technology

Competitions (www.teknofest.org).

General Information: A 1/1 scale model of the winning design will be produced and displayed

at the TEI booth on the day of the event. The winning design will be announced during the

TEKNOFEST event.

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2. Technical Specifications of The Jet Engine and Limitations

The turbojet engine to be designed must follow the specified physical limitations and must

meet the requirements related to geometric parameters, manufacturability, performance,

structure, and lifetime. The designed turbojet engine shall have a single-stage compressor, a

single-stage turbine, and a single shaft. It is recommended to choose from the materials given

in Table 1 for the vanes and blades of the turbine when designing the turbojet engine. Table 1

shows the maximum service temperature of the recommended materials. The designed turbojet

engine shall use JP8 fuel.

Table 1 Turbine Blade Materials and Maximum Service Temperature

2.1. Physical Limitation for The Engine

The dimensions given as physical limitations are dimensions that must be observed while the

engine is in cold state. Figure 1 shows the boundary dimensions of the engine and Table 2

shows the design requirements.

Material Component Maximum Metal Service

Temperature (K)

Inconel 625 Vane and blade 1033 K


Inconel 738LC Vane and blade 1223 K



MarM247LC Vane and blade 1311 K

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Figure 1 Engine Boundary Dimensions

Table 2 Design Requirements

Design

Requirements

Parameter Value Description

Weight [gr] 6000

The maximum allowable engine dry

weight, excluding accessories, shall be

6000 g.

Operating Life

[hours] 2

The minimum operating life provided

by the engine shall be 2 hours at the

maximum operating speed.

Diameter [mm] 220 The maximum diameter of the engine

shall be 220 mm.

Length [mm] 580 The maximum axial length of the

engine shall be 580 mm.

2.2. Engine Performance Limitations

Performance requirements are requirements that the engine must provide in hot (running) state.

2.2.1. Design Point Requirements

The design point of the compressor to be designed is sea level (101.325 kPa air pressure)

standard day (15 °C temperature) static (stationary) condition. The rows specified as design

inputs are the analysis inputs and also the conditions under which the design should be

performed. The rows specified as design requirements refer to the target values that must be

achieved as a result of the analysis.

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Table 3 Design Point Inputs

Design

Inputs


Compressor

compression ratio 4-6

The range of compression ratio of the

designed compressor shall be

minimum 4 and maximum 6.

Turbine Inlet

Temperature (K) 1250

The Turbine Inlet Temperature of the

designed engine shall be maximum

1250 K.

Total Inlet Pressure

(kPa) 101.325

The total inlet pressure of the

designed engine shall be 101.325

kPa.

Total Inlet

Temperature (K) 288.15

The total inlet temperature of the

designed engine shall be 288.15 K.

Thermal value of JP8

fuel (kj/kg) 43124

The thermal value of the JP8 fuel to

be used in the designed engine shall

be 43124 kj/kg.

OTDF * 0.25

The combustion chamber outlet

profile’s OTDF value shall be 0.25.

This value should be taken into

account in the selection of the turbine

material (static parts).

* Overall Temperature Distribution Factor (OTDF) must be calculated using the

following formula.

T4: Turbine inlet temperature

T3: Compressor outlet temperature

Figure 2 Overall Temperature Distribution Factor

TOTDF = (Tpeak -T4)/(T4 - T3)

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Table 4 Design Point Requirements

Design

Requirements


Specific fuel

consumption (g/kN/s) 38

The maximum specific fuel

consumption value of the designed

engine shall be 38 g/kN/s.

Thrust (lbs) 150 The minimum thrust of the engine

shall be 150 lbs.

2.2.2. Off-Design Point Requirements

The table below shows the off-design point requirements of the engine to be designed. The

rows specified as off-design point inputs refer to analysis inputs, and the rows specified as off-

design point requirements refer to target values that must be achieved as a result of analysis.

The off-design point is an altitude of 5000 meters and a speed of 0.8 Mach. (Standard day;

static temperature in 5000 meters condition, used from ISA table.)

Table 5 Off-Design Point Inputs

Design

Inputs


Flight Speed (Mach) 0.8 The speed of the designed engine off

design point shall be 0.8 Mach.

Flight Altitude

(meters) 5000

The flight altitude of the designed

engine shall be 5000 meters.

Thermal value of JP8

fuel (kj/kg) 43124

The thermal value of the JP8 fuel to

be used in the designed engine shall

be 43124 kj/kg.

Table 6 Off-Design Point Requirements (5000 m; 0.8 Mach)

Design

Requirements


Specific fuel

consumption (g/kN/s) 44

The maximum specific fuel

consumption value of the designed

engine shall be 44 g/kN/s.

Thrust (lbs) 90 The minimum thrust of the designed

engine shall be 90 lbs.

3. Competition Schedule, Scoring, and Evaluation

The evaluation process shall be carried out in three stages: Conceptual Design Report, Detail

Design Report, and Final Evaluation Presentation. Teams that fail to submit the Conceptual

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Design Report and/or the Detail Design Report shall not be eligible to continue the competition.

The competition schedule is presented in Table 7.

3.1. Competition Schedule

Table 7 shows the competition schedule.

Table 7 Competition Schedule

Date Description

15 March 2021 Application deadline

22 March 2021 Provisions of First Phase Engine Design

Training to participants

03 May 2021 Conceptual Design Report deadline

17 May 2021

Announcement of teams found to be

successful in the preliminary qualification

according to the results of the Conceptual

Design Reports

24 May 2021 Provisions of Second Phase Engine Design

Training to participants

26 July 2021 Detail Design Report deadline

06 August 2021 Announcement of finalists

18 August 2021 Final evaluation presentations

21 -26 September 2021 Announcement of the winning team

3.2. Conceptual Design Report

Teams are required to submit their Conceptual design reports by the date specified in Table 7.

The Conceptual design report is expected to include the following sections as a minimum.

Abstract

Introduction

o Literature review

Development of Conceptual Design and Feasibility Studies

o Description of conceptual engine design

o Engine performance cycle analysis

o Two-dimensional flow path aerodynamic analysis

o Material selection

o Mechanical design and calculations

o Thermal calculations

o Rotor dynamics calculations (One-dimensional or Dunkerley method)

o Two-dimensional strength calculations

o Selection of manufacturing method

Evaluation of Conceptual Design

Subsequent Studies and Project Plan Proposal

Risk Analysis

Conclusion

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References

Appendices

o Technical drawings of the conceptual design

o Detailed information about calculation methods

The assumptions adopted for the design should be stated in detail in the Conceptual Design

Report. All requirements, boundary conditions, limitations, and data collected must be shown

in the report. If there is any assumed value, the source must be specified.

It is recommended to use the thesis writing guide and format of Gebze Technical University

for the conceptual design report.

Gebze Technical University Thesis Writing Format

https://www.gtu.edu.tr/kategori/1426/0/display.aspx

Gebze Technical University Thesis Writing Guide

https://www.gtu.edu.tr/Files/Yonetmelik_ve_Yonergeler/Y%C3%B6netmelikler/Tez%20Yaz

%C4%B1m%20K%C4%B1lavuzu%20-GT%C3%9C06012015.pdf

In order to proceed to the next stage of this competition, the preliminary design report must

have been submitted and approved. Teams that are considered successful in the conceptual

design phase shall be eligible to move on to the next stage. Successful teams eligible to proceed

to the detail design phase as a result of conceptual design evaluations shall be announced by

the date specified in Table 7.

3.3. Detail Design Report

Teams that have successfully proceeded to the detail design report phase are required to submit

their reports by the date specified in Table 7. The detail design report shall include the details

given below. Analysis results and CAD models shall be submitted in the relevant format.

Abstract

Introduction

Development of Detailed Design and Feasibility Studies

o Description of detailed engine design

o Engine performance cycle analysis

Design point analysis

Off-design point analysis

o Primary flow development

Compressor/Turbine maps

Compressor/Turbine three-dimensional flow analysis

o Secondary flow and lubrication analysis

o Thermal analysis

Two-dimensional thermal analysis and/or manual calculations

o Dynamics analysis

Rotor dynamics analysis

Structural analysis

o Three-dimensional stress calculations

o Part integrity calculations


https://www.gtu.edu.tr/Files/Yonetmelik_ve_Yonergeler/Y%C3%B6netmelikler/Tez%20Yaz%C4%B1m%20K%C4%B1lavuzu%20-GT%C3%9C06012015.pdf


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o Low-cycle and high-cycle fatigue life calculations

Selection of material and manufacturing method

Bearing selection (axial load, radial load, and bearing life calculations)

Manufacturability and ease of assambly assessments

Discussion of results and recommendations for future studies

Risk analysis

References

Appendices

o Technical drawings of detail design

o Detailed information about calculation methods

o 3D CAD model of detail design

The boundary conditions used in all analysis/calculations must be stated in detail. Teams that

have proceeded to the detail design stage are required to show the accuracy of their

analysis/calculations in their work (comparison with simple manual calculations and

correlations, etc.).

It is recommended to use the thesis writing guide and format of Gebze Technical University

for the detail design report.

Gebze Technical University Thesis Writing Format


Gebze Technical University Thesis Writing Guide

https://www.gtu.edu.tr/Files/Yonetmelik_ve_Yonergeler/Y%C3%B6netmelikler/Tez%20Yaz

%C4%B1m%20K%C4%B1lavuzu%20-GT%C3%9C06012015.pdf

The assumptions adopted for the design should be stated in detail in the report. All

requirements, boundary conditions, limitations and data provided and obtained in the report

must be shown. Teams that will proceed to the final evaluation based on the results of the detail

design report shall be announced on 20 August 2021.

3.4. Scoring and Evaluation

The following table lists the report scoring categories and weightage. The maximum score shall

be 100, and reports and presentations shall make the entire total score. Reports shall account

for 70% of the total score, and the presentation shall account for the remaining 30%. The

scoring criteria for the conceptual design phase are shown in Table 8, the scoring criteria for

the detail design phase are shown in Table 9, and the presentation evaluation criteria are shown

in Table 10.

3.4.1. Scoring and Evaluation of Reports

Teams that receive a minimum score of 70 out of 100 for their Conceptual Design Report

shall be eligible to proceed to the detail design phase. Teams that receive a minimum score of

70 out of 100 for their Detail Design Report shall be eligible to proceed to the final

evaluation phase. The first 3 rankings will be determined at the Teknofest Event according to




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the presentation to be made on the final day. The evaluation of presentations shall be

performed by the competition jury based on the oral presentation and the answers given to the

questions of the jurors. The final evaluation and presentation format shall be announced on

the deadline for the Detail Design Report.

Table 8 Scoring criteria for Conceptual Design Report

Scoring Criteria Weight (%)

Approach to design problem and planning 10

Conceptual design development 20

Use of technical analysis and calculation methods 50

Discussion and interpretation of results 5

Full participation in 1st phase motor design training 10

Reporting quality 5

Table 9 Scoring criteria for Detail Design Report


Approach to design problem and planning 10

Use of technical analysis and calculation methods 60

Discussion and interpretation of results 15

Reporting quality 5

Full participation in 2nd phase motor design training 10

3.4.2. Scoring and Evaluation of Presentations

Table 10 Evaluation criteria for Presentations


Ability to develop conceptual design 20

Ability to develop detail design 20

Technical analysis skills 50

Presentation skills 10

3.4.3. Total Score

The total score that can be obtained at the end of the competition shall be a maximum of 100

points and the calculation shall be made as follows.

Total Score = 0.20 * CDR Score + 0.50 * DDR Score + 0.30 * Presentation Score

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4. Awards

Among the participants that make it to the finals, the prize- winning teams will be awarded

the prize money listed in Table. The awards stated in this table show the total amount to be

awarded to the teams that are entitled to receive awards. The first, second and third prizes

will be divided into equal amounts based on the total number of team members, and will

be deposited into the bank account specified by each team member.

Within the scope of the competition, the advisor of the qualified team will be paid. The

consultants of our ranked teams will be paid $2,000.00.

Award Amount

First 30. 000 TL

Second 20. 000 TL

Third 10. 000 TL

4.1 Minimum Success Criteria for Award Ranking

The minimum success criteria that the participants must fulfill in order to be ranked for an

award is that they have passed the presentation stage.

5. GENERAL RULES

Teams have the right to object to the concerned judge through their team leaders. Objections can

be made verbally, provided that they are submitted in writing at a later time. Verbal objections must

be put in writing within 24 hours. In any case, non-written objections will not be taken into

consideration. Objections will be finalized within 72 hours after having examined by the judge

panel.

After the evaluation results are announced, team leaders are required to submit their objections and

justifications in writing. Objections must be received from [email protected]

The appeal process must be made within one week - 7 days - after the results of the competition are

announced. Otherwise, the objections are not taken into consideration.

The role of the advisor; to help students to plan their own education, to guide them in academic,

social and cultural issues, to help prepare the appropriate environment for the development of the

student's personality as a whole with its mental, social and emotional aspects, etc. tasks and services.

The role of the advisor in the team is to provide the academic support that will be needed in the

project, to guide the team members to find solutions to their problems.

Each contestant is responsible for taking the necessary precautions and showing the expected

attention to his/her peers and the environment.

Turkish Technology Team (T3) Foundation and the organisation committee reserve the right to

make any amendments to the specifications in order for the contest to take place in accordance with

the specified impartial criteria so that any violations may result in judicial outcomes, to better meet

all sorts of requirements by the contestants, to provide necessary safety precautions and to maintain

the functionality of the contest specifications.

mailto:[email protected]

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Having made the necessary evaluations following the application deadline, T3 Foundation and the

organisation committee reserves the right to cancel the contest given that sufficient number of

applications is not reached with the required technical knowledge and skills.

TEKNOFEST Safety and Security Terms and Conditions will be communicated to all contestants,

delegations and concerned parties. All competing teams are responsible for observing the safety

terms and conditions specific to their respective categories specified in TEKNOFEST Safety and

Security Terms and Conditions. In this regard, with the exception of security precautions contained

in the aforementioned security instructions, it is the contestants’ responsibility to take additional

precautions arising from the systems employed.

T3 Foundation and the organisation committee has the right to exclude any and all teams from the

contest who do not fulfill the terms and conditions of TEKNOFEST Safety and Security Terms and

Conditions to provide a safe environment for holding the contest. T3 Foundation and organisation

officials cannot be held responsible for damages arising from the violation of terms and conditions

by the contestants, delegations and concerned parties.

Regarding the competition, the competitor hereby accepts and consents to any kind of written or

visual promotion, publication, social media and internet broadcasting to be made by the T3

Foundation and / or TEKNOFEST before or after the competition. In addition, the competitor

agrees and submits that any and all intellectual property generated as pertains to the competition,

including but not exclusive to designs, code, and manufactured products, belongs exclusively to the

T3 Foundation and / or TEKNOFEST and that the competitor does not have any rights to or

demands on these artifacts. T3 reserves the right to disclose all intellectual property thereby for

public consumption in a manner it deems fitting.

In the event that a competitor infringes upon the intellectual property rights of any product, and T3

Foundation and/or TEKNOFEST incur damages, the responsibility for such damages will be borne

entirely by the relevant participant(s).

All teams who qualify to compete in the contest will be given a Participation Certificate.

6. ETHICAL RULES

• The legal process will be urgently initiating for the people who performs a situation, action,

speech, etc. contrary to social morality in the festival area or during the competition process (report

stages, evaluation process, etc.) And team will be banned from all kinds of events and activities

of T3 Foundation to participate at least 2 years.

• The issues to be considered in the language used in all communication with the TEKNOFEST

Competitions Committee are as follows

- Rude and impolite words and behaviors must be avoided,

- Insults, threats and bad words must be avoided,

- Direct targeting and insulting with social media tools such as E-mail, facebook, skype,

messenger, whatsapp, twitter etc. must be avoided,

It is necessary to pay attention to the spelling rules and style in your petitions and objections.

• Situations, verbs, words etc. that will affect the functioning and motivation of other teams in the

festival area must not be exhibited.

• Social peace in the dormitory and its surroundings where accommodation services are provided

should be taken into consideration. Otherwise, the initiation of the legal process against the person

will be carried out by the relevant institutions.

• During the project and product development process, it is the responsibility of the team to back up

/ store the necessary equipment and materials in advance, taking into account all kinds of

negativity, and to change parts in case of a possible negativity. Product supply from another team

must not be provided.

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• Care should be taken to act in accordance with the service requirements in neutrality, without

discrimination of language, religion, philosophical belief, political opinion, race, age and gender,

and without giving rise to behaviors and practices that prevent equal opportunity in the festival

area and in all kinds of services offered by TEKNOFEST.

• It is necessary to pay attention not to use and use TEKNOFEST and other company-institution-

organization goods and resources outside of their purposes and service requirements, and not to

waste these goods and resources.

• It is necessary to support the activities carried out in order to facilitate the functioning of the

festival, to meet its needs in the most effective, fast and efficient way, to increase the quality of

service and to increase festival satisfaction.

• Be careful about all kinds of benefits and financial or other liabilities and similar personal interests

provided to themselves, their relatives, friends or the persons or organizations with whom they are

in contact and that affect or seem to affect the competitors in the festival area to perform their

duties impartially and objectively, to act and take the necessary precautions to avoid conflicts of

interest.

• When using TEKNOFEST buildings and vehicles and other public goods and resources, it is

necessary to avoid waste, to act effectively, efficiently and economically while using working

time, public goods, resources, labor and facilities.

• TEKNOFEST team members must be accountable for their responsibilities and obligations during

their execution, and are open and ready for corporate evaluation and supervision, advisors should

take the necessary measures to prevent corruption with the actions or actions that are not in line

with the goals and policies of their institutions, and train their members on ethical principles of

behavior, It should be monitored whether these principles are followed or not and provide

guidance on ethical behavior.

• While fulfilling their duties, team members should not make any commitments, promises or

attempts binding the institutions they work for, and should not make deceptive and untrue

statements.

STATEMENT OF LIABILITY

Turkish Technology Team Foundation and TEKNOFEST are in no way liable for any injury or damage

caused by any entry, any entrant, or by the disqualification of an entry. Turkish Technology Team

Foundation and TEKNOFEST at large are not responsible for ensuring teams operate their systems

within the law of the Turkish Republic. The Turkish Technology Team Foundation and TEKNOFEST,

and organisation officials cannot be held responsible for the damages inflicted upon third parties by the

contestants.

Turkish Technology Team Foundation has the right to make any amendments to this terms and

conditions.

jet engine design competition terms and conditions

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