tech talks 2021

TECH TALKS

2021

INDONESIA

UNIVERSITAS INDONESIA

HYDROS TEAM

UNIVERSITAS

INDONESIA

TECH TALK

TECH TALK

HYDROS TEAM UI

TECH TALK

INDONESIA

UNIVERSITAS INDONESIA

HYDROS TEAM UI

About the Country :THE REPUBLIC OF INDONESIA IS THE LARGEST ARCHIPELAGO IN THE WORLD. IT IS LOCATED IN SOUTHEAST ASIA AND HAS 215 MILLION POPULATION.

About your University/ your Company : UNIVERSITAS INDONESIA IS THE STATE UNIVERSITY WHICH IS LOCATED IN DEPOK, WEST JAVA, INDONESIA. IT IS A MODERN, COMPREHENSIVE, OPEN-MINDED, MULTI-CULTURE, AND HUMANISM CAMPUS THAT COVERS WIDE ARRAYS OF SCIENTIFIC DISCIPLINES.

About the teamList all the team members and their rôle :• Zuhdi Ali – Team manager• Athena Anatolia – Head of Nontechnical Division• Putri Rebecca – Public Relation• Achnaf Fauzan – Logistic• Fadhil Nurrohman – Head of Body and Dynamics

Division• Arief Kurniawan – Body & Manufacture• Iko Septiyahardi – Hydrodynamics & Stability• Aly Abdussalam – Head of Mech Division• Ilham H Putra – Steering System• Khairun Naziri – Propulsion System• Ade Hendra – Head of Electrical Division• Muhammad Fauzan – Electrical System

Country Flag

HYDROS TEAM UI

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Boat & propulsion Caracteristics:

• Good for manuversbecause using azimuthpropeller

• Aerodynamic design• Inverted Bow• Lightweight cockpit• Full carbon fibers cockpit

Boat photo

Ideas & Inspirations

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Conception Methods, Design, Optimisation:

• Using azimuth propeller for good maneuvers• Propeller has been design for good efficiency

Conception Methods, Design, Optimisation :

• Good strength material • Steering system using Flex Mechanical Steering• Using NACA 0015 with costumize into less drag

Conception methods,

design, o p t i m i s a t i o n

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Production

Materials:

• Composite material

Time of production :estimate 3 month

Problems faced:

• We still working on manufacturing product

Budget: 550,00 EUR

Production:Mechanica l

Production

Materials:

• Composite (For propeller)


Problems faced:

• Hub propeller for bevel gear that we use didn’t have dimension yet. So we overcome this with measuring it

Budget: 325,00 EUR


Production

Materials:

• Composite (For bracket engine)


Problems faced:

• Troubled with joining part by part• Still on manufacturing

Budget: 128,00 EUR


Production

Materials:

• Top Side• Carbon Fiber• Divinycell Foam• Epoxy Resin

• Bottom Side• Carbon Fiber• Divinycell Foam• Epoxy Resin


Problems faced:

• Trial – Error Method for Manufacturing Bottom side Cockpit

• In electrical system1. Recalculating harvested energy from

photovoltaic caused by different weather.2. Horrible data transmission in offshore

conditions

Budget: 3041.64 EUR

Production:Cockpit

Condition of testing & measurement

• (Using Software FineTurbo for Marine Propeller)• Ref. Length : 0,29 m• Ref. Velocity : 7 m/s• RPM : 3100 • Density : 1000 kg/m3• Number of Blade : 3• Units : SI• Time Configuration : Steady• Optional Model : Cavitation

Datas

Results description

• Propeller does not fit the existing motors to capture maximum performance

• Cavitational occurs on propeller

Testing & Results

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Thrust : 2267 NPower Available : 40 KWTorque : 124,2 NmEfficiency : 39,4 %

Condition of testing & measurement

• (Using Software Autodesk Inventor )• Area : 400264 mm^2• Volume : 2213130 mm^3• Center of Gravity :

x=-0,000000000117286 mmy=-74,4454 mmz=0 mm

• Density : 60kg/m3• Load weight : 17 kg

Datas

Results description

Testing & Results

Mechanical

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Please provide details on the Life Cycle Assessement of your project

• ………………….. ……………………..• …………………… …………………….• …………………… ……………………..• ………………….. ………………………

Life Cycle

Assessment

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Please provide details on the eco design dimension of project

• Zero carbon emission, Our ship uses a hybrid electric propulsion system that utilizes sunlight to be used as an energy source. this certainly has an impact on the carbon footprint that is produced when our ships are used. Our ship does not produce exhaust emissions that are harmful to the surrounding environment. When we compare it with diesel engines, in general, diesel engines produce 2.62 kg of CO2 per liter of fuel. Of course this is very significant in reducing greenhouse gas emissions.

• Reducing energy consumption, from the steering and propulsion system that we made We did the fabrication as light as possible and as strong as possible. So that the use of energy can be channeled efficiently. Hydros 2020 makes innovation by making propulsion coloumn with the lowest drag possible and the strongest material strength so that the safety of the ship itself is obtained and the use of energy can be more efficient.

• To maximize this we do a simulation with the help of a third party (Chroma) using NUMECA software, we get a drag force when the ship moves at an average of 7 meter per second which is the lowest of 18 N. In the previous year Hydros 2019 did not use this so there is no data to compare it.

Eco Design

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Please provide details on the main innovative feature of your project

• Make the cockpit closer to the water by making a cavity in the design of the cockpit, carbon materials is resistant to corrosion. This is useful because the boat will sail in seawater . It will also reduce the cockpit weight from 45 kg to 30 kg for the same design.

• Making engine mount from fibre composite material, where the purpose is to make the mounting lighter, where last year the weight is 8 KG, this year we reduce it to 2 Kg, We change the material to Composite material. where last year we use aluminum. Weight rudder is 6 kg, where the last year weight is 16 kg

• LoRa is a ,Long Range, low power wireless standard intended for providing a cellular style low data rate communications network, This technology enabling the transfer of information over a range of tens of kilometers. Energy monitoring can provide new opportunities for energy consumption or generation measurement, and data processing, including decisions on real-time.

Innovation

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Efficience Gain

• Provide lot of new topics for research and development

• The systems (mechanic and electric) are easy to maintain and user friendly

Description

• the propulsion that we have made specifically according to the boat that we have designed, this propulsion is also not an item that has been on the market.We have low cost for production. Our

propeller use composite that reach 39,4% efficiency

Industrialisation

of the Project

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The Special Feature(s)

• Aerodynamic Cockpit• Catamaran Hull• Solar Energy Boat• Inverted Bow• Azimuth Propeller

Special Feature of the Boat(s)

Description• Catamaran Hull gives

more better stability and less wetted surface area

• Using solar energy makes it more environmental friendly

• Wave breaking feature

Challenge of the Expert

In Body and Dynamic

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The Special Feature(s)

• Telemetry System LoRaDescription• LoRa technology provides

us wide area transmisionwith low power consumption.

• Received data can be read via mobile apps (such SoC, Ampere rate, etc.)

Challenge of the Expert

In Electrical

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Community Questions

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tech talks 2021

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