Archive for category Lean and Green Operations

Cracking The Truck Dispatch Problem in Open-Pit Mining to Enhance Competitiveness for the Coal Market

Indonesia is a country which has high diversity in energy and mineral resources. As an archipelago with an area of 1,910,931 km2, Indonesia has some of the pre-eminent resources such as petroleum, natural gas, nickel, coal and others. In coal, Indonesia is listed as one of the largest coal producer in the world in 2014. As one of the highest coal producing countries, Indonesia has a reliance on the use of coal for generating electricity or power plant. This is in line with the Indonesian government program in the long-term energy mix of coal has increased the portion of the year 2013 by 24% to 2025 by 33%. But in fact it actually happened inversely where increased production of domestic coal is not followed by a competitive price.

The existence of weakening coal prices, which decreased from year to year, causing the mining sector, especially companies engaged in coal experienced significant negative impacts. One of the most essential where companies are not experiencing growth on corporate profits, but declined.

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Based on these phenomena is the only way for the company to continue running the business activities through efficiency measures on many things to be able to cover operational costs. One of the efficiencies that can be done such efficiency on the operational side.  As mentioned by Alarie & Gamache (2002) and Ercelebi & Bascetin (2009) the material transportation represents 50 per cent of the operating costs for an open pit mine. Therefore, one of the efficiencies that can be done and has a substantial impact through efficient on truck dispatching problem in the mine area

SEMS was proposing to overcome this problem using simulation and optimization approach to analyze the complexity of truck dispatch problem in open pit mining. This approach uses the look-ahead algorithm and  multi-stage algorithm. Solving the issue focuses on the development of look-ahead methods that will be applied to the truck dispatch problem. Simulation and optimization approach on this issue is run simultaneously with the help of software ProModel as the media to solve the problem. Look-ahead algorithm is an approach to solve the problems of the assignment of the fleet to look ahead what will happen near future with based on previous information system gathered as a reference to decide the scheduling for entities that exist in back of the queue. This research basically to answer the question about where this truck should go now and when it leave this place in order to maximaze amount of coal production. The output of the research is to obtain the best assignment rules for truck dispatch problem with four indicators are, amount of coal production, productivity of loader, productivity truck with block and without block.

Using the model, a significant improvement on amount of production has been achieved to enhance competitiveness coal market.

This research is conducted by Achmad Yusaq Faiz Fadin, Komarudin, and Armand Omar Moeis.

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Transfering the Complex Knowledge of Supply Chain Management through Serious Simulation Games

“A game could makes you forget that you are actually learning. Packaging a very complicated and
complex reality in to a simple learning tool is what Serious Simulation Game designed for.”

Have you ever thought about how your soft drinks, or your lotion, could arrive in the shelf even before you need it? That effort to make sure you get what you want when you step into the store is called Supply Chain Management (SCM). SCM is indeed important not only for customers, but also for the company. Every company tries to manage its supply chain efficiently and effectively, as SCM alone costs 30% – 70% of the total of production cost. However, managing a supply chain is not an easy job to do.

SCM GAME - Intro
Andersson and Wemner, through their article in 2008, even stated that many SCM practitioners have difficulties in making the right decision. This fact triggers other urgency: to find talents who understand SCM and able to make the right decision. To gain better knowledge about making decision in SCM, some researches have proven that traditional classroom teaching method might not be the best. Experiential learning, just like its name, provides you a learning method by experiencing the reality, which is an effective way to learn how to make a decision. One of its most effective media is Serious Simulation Game (SSG). To simply put, SSG is an entertaining game with non-entertaining purpose. However, there are still a very limited number of researches on the SSG about the whole supply chain.

H2Game SCM 1

In order to enhance the knowledge of SCM, especially for students, SEMS researchers have created a SSG named H2! Supply Chain Management Game. This game helps players to improve their ability in decision making, and also their skills in analyzing report and teamwork. H2! Supply Chain Management Game is played by 4 players per team, where there will be 4 teams competing against each other. The SSG was designed using a Spreadsheet Applications as its basis. It was then tested two times, Prototype 1 and Prototype 2. To deliver the learning points of the game well, this SSG was played in 4 phases. It consists of Briefing, Playing, Debriefing, and Evaluation.

The result of the evaluation phase shows that H2! Supply Chain Management Game can be used to deepen the knowledge of the players. It also helps players to understand supply chain’s important elements which improve their ability in analyzing data and making right decisions.

This research is conducted by Rachel Giovanni Hasibuab, Maya Hashilah, Arry Rahmawan and Akhmad Hidayatno

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Beer Game Simulation at Astra Honda Motor AHM

In order to introduce the basic concept of Supply Chain Management for all its Dealers, PT Astra Honda Motor AHM asked SEMS Lab to conduct Beer Game Simulation. The Beer Game Serious Simulation Gaming (SSG) is perfect interactive way to have a common understanding of supply chain challenges (With of course No Beer drinking involved). Approximately 67 dealers were trained on September 10, 2014 at PT AHM Tipar Cakung. The facilitators team was lead by Mr. Hariyanto Salim MSIE, CSCP that consist of 1 Game Master, and 10 Game Companion for each Game Board.
Even though it is a classic game, the beer game was still an eye opener for all the participants, who are all practitioner and very expert in the field.

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SEMS Researchers Team at QiR Seminar

Faculty of Engineering, Universitas Indonesia organized the 13th International Conference on Quality in Research (QiR) 2013, following the previous successful conference in Bali in 2011. The bi-annual International Seminar are open for all Engineering Disciplines, including Industrial Engineering. The selected theme for this year conference is “Exploring Innovation for Enhancement of Human Life and Environment”. Under this theme the conference focuses on the innovative contributions in science, engineering and design as well as their market perspectives to the existing and future enhancement of human life and environment quality. The seminar was held in Yogyakarta, Indonesia, 25-28 June 2013, at the Sheraton Mustika Hotel.

SEMS supports this seminar by presenting 2 papers regarding the use of system dynamics in marketing strategy. The paper was presented by Mr. Irvanu Rahman and Mr. Rama Raditya. It was a successful. We invite you to come for 2015 QiR, planned in August 2015.

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MP3EI Discrete Event Modeling Class Projects for Industrial Simulations

As part of the major class projects, the class of 2010 of the Industrial Simulation Class was tasked to develop a national logistics models based on MP3EI framework. Indonesia’s Masterplan for Acceleration and Expansion of Indonesia’s Economic Development (abbreviated MP3EI) is a long term plan by the Indonesian government to accelerate the realization of becoming a developed country. This will be done through “inclusive, just and simultaneous economic prominent growth”.

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The class was divided into the 6 economic corridors of the MP3EI: Read the rest of this entry »

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