Banda Aceh, Indonesia

University of Syiah Kuala
Banda Aceh, Indonesia

Syiah Kuala University ), founded on September 2, 1960, is the largest and the oldest national university in Banda Aceh, Indonesia. The name of the university is taken from the prominent theologian, Tengku Abdur Rauf As Singkili, who lived in the 16th century.Unsyiah has ten faculties, providing Associate, Bachelor, and Masters degrees. Unsyiah has 131 laboratories for student lab work, student and lecturer experiments, and community service. The laboratories are spread across departments and faculties as follows: economics 2, veterinary science 11, law 1 engineering 29, agriculture 17, medical 27, mathematics and natural science 26, and one integrated laboratory Wikipedia.

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Irwandi I.,University of Syiah Kuala
IOP Conference Series: Earth and Environmental Science | Year: 2017

Procedure of standard Seismic Hazard Assessment (PSHA) has a problem with over simplifying recurrence since being represented by a linear relationship. However, the relationship will be satisfied only if the size of the study area is large enough with respect to linear dimensions of sources.. PSHA lies in attenuation relations are usually not translation invariant in the phase space. Regarding the problem of completeness data, instead of using recurrence relationship DSHA select the most credible earthquakes. However, the DSHA remain lies in attenuation relations, assume the same propagation model for all the events, but such a hypothesis is not very realistic. On the contrary, NDSHA procedure has advantages in calculation strong ground motion from the realistic model of synthetic seismograms from source specific properties and cooperates with the available structural model. Additionally, The NDSHA produced more information such as PGD, PGV, PGA for horizontal and vertical components each. Using realistic computation for Banda Aceh, NDSHA provides an accurate value for each of those components, achieving probability of exceedance in the range between 10% to 2% probability of exceedance PGA from PSHA computation. Regarding some limitation from PSHA, Indonesia needs to establish research on NDSHA for the area has critical infrastructures to face the seismic hazard. © Published under licence by IOP Publishing Ltd.

Arif A.A.,University of Syiah Kuala
IOP Conference Series: Earth and Environmental Science | Year: 2017

Banda Aceh as the capital of Aceh Province is the region with the tsunami disaster that occurred on December 26, 2004 the most severe of which over 60% of the city area were destroyed mainly coastal region and settlements. One product plan for rehabilitation and reconstruction of Banda Aceh is made of Banda Aceh as Green City. To realize the Green City Banda Aceh, urban development process should be conducted in a planned and integrated way with attention to spatial and environmental aspects to ensure an efficient urban management and to create a healthy, beautiful and comfortable environment. There is a weakness of the process in urban planning and development that occurred at present where cities tend to minimize the development of green open space and land conversion into a commercial district, residential areas, industrial areas, transport networks and infrastructure and facilities for other cities. Another tendency that occurs is urban environment only developed economically but not ecologically, whereas ecological balance is as important as the development of the economic value of urban areas. Such conditions have caused unbalance of urban ecosystems including increased air temperature, air pollution, declining water table, flooding, salt water intrusion and increased content of heavy metals in the soil. From an ecological perspective, unfavorable microclimate, high-temperature increase due to the lack of trees as a sieve / filter against heavy rain, can cause flooding. These conditions result in inconvienient, arid and less beautiful urban areas. The author identifies the elements contained in the Green City Banda Aceh and how the efforts and approaches must be made toward Green City Banda Aceh. © Published under licence by IOP Publishing Ltd.

Olofsson T.,Umeå University | Mahlia T.M.I.,University of Malaya | Mahlia T.M.I.,University of Syiah Kuala
Applied Energy | Year: 2012

In order to reduce the energy use in the building sector there is a demand for tools that can identify significant building energy performance parameters. In the work introduced in this paper presents a methodology, based on a simulation module and graphical figures, for interactive investigations of the building energy performance. The building energy use simulation program is called TEKLA and is using EN832 with an improved procedure in calculating the heat loss through the floor and the solar heat gain. The graphical figures are simple and are illustrating the savings based on retrofit measures and climate conditions.The accuracy of the TEKLA simulation was investigated on a typical single-family building in Sweden for a period of time in a space heating demand of relatively cold and mild climate. The model was found applicable for relative investigations. Further, the methodology was applied on a typical single family reference building. The climate data from three locations in Sweden were collected and a set of relevant measures were studied. The investigated examples illustrate how decisions in the early stages of the building design process can have decisive importance on the final building energy performance. © 2011 Elsevier Ltd.

Zamora R.,Mississippi State University | Zamora R.,University of Syiah Kuala | Srivastava A.K.,Mississippi State University
Renewable and Sustainable Energy Reviews | Year: 2010

The interest on microgrid has increased significantly triggered by the increasing demand of reliable, secure, efficient, clean, and sustainable electricity. More research and implementation of microgrid will be conducted in order to improve the maturity of microgrid technology. Among different aspects of microgrid, this paper focuses on controls of microgrid with energy storage. A comprehensive review on current control technology is given with a discussion on challenges of microgrid controls. Basic simulation results are also presented to enhance and support the analysis. Finally, research needs and roadmap for microgrid control are also described.

Mahlia T.M.I.,University of Tenaga Nasional | Mahlia T.M.I.,University of Syiah Kuala | Saktisahdan T.J.,University of Tenaga Nasional | Jannifar A.,University of Malaya | And 2 more authors.
Renewable and Sustainable Energy Reviews | Year: 2014

Energy storage becomes a key element in achieving goals in energy sustainability that lead to energy and cost savings. This paper discusses various types of energy storage including compressed air energy storage (CAES), flywheel energy storage (FES), pumped hydro energy storage (PHES), battery energy storage (BES), flow battery energy storage (FBES), superconducting magnetic energy storage (SMES), super capacitor energy storage (SCES), hydrogen energy storage, synthetic fuels, and thermal energy storage (TES) with additional information about the recent update of the technology. In the final part of this paper, the comparison and barriers to deploying the technologies are also given in order to give a better view about the energy storage technique. © 2014 Elsevier Ltd.

Ong H.C.,University of Malaya | Mahlia T.M.I.,University of Malaya | Mahlia T.M.I.,University of Syiah Kuala | Masjuki H.H.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2012

Transportation has dominated global fuel consumption and greenhouse gas emissions have risen in an alarming rate. Gasoline and diesel consumption for road transport have a faster growing rate than other sector and the trend appeared to be rapidly moving upwards in the near future. This has caused much concern in many countries including Malaysia to improve the sustainable energy of this sector. The focus of this paper is to analyze the trends of energy pattern and emission of road transport in Malaysia. On top of that, the review of prospective policies such as fuel economy standards and fuel switching to natural gas as well as biodiesel are summarized in this study. The study found that there is an urgent need to adopt suitable energy policy to balance the energy demand and reduce emission in this sector. This study serves as a guideline for further investigation and research in order to implement and improve the transportation sector. © 2011 Elsevier Ltd. All rights reserved.

Azwar M.Y.,University of Malaya | Azwar M.Y.,University of Syiah Kuala | Hussain M.A.,University of Malaya | Abdul-Wahab A.K.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2014

Production of biohydrogen has the potential to be a renewable alternative to current technologies. There are varieties of technologies for biological hydrogen production mechanisms including biophotolysis, photo fermentation, dark fermentation and hybrid biohydrogen production by electrochemical processes. In these studies, a review on the recent developments of biohydrogen production is presented. First, the theoretical principles of biophotolysis by cyanobacteria and green micro algae, as well as direct and indirect of biophotolysis process on hydrogen production are described. Secondly, practical aspects and fundamental of biological hydrogen production processes by photo and dark fermentation are reviewed. This work also involved comparison of the maximum H2 yield, bacterial strains, operating condition, suitable substrates, and mathematical models for fermentative hydrogen production. A new hybrid biological hydrogen production processes by using the electrochemical process is then proposed. This study can also be used to improve the basic and current knowledge about the performance of the biophotolysis, fermentative and electrochemical process in producing hydrogen gas as the alternate fuel. © 2013 Elsevier Ltd. All rights reserved.

Hasan M.H.,University of Malaya | Mahlia T.M.I.,University of Malaya | Mahlia T.M.I.,University of Syiah Kuala | Nur H.,Ibnu Sina Institute for Fundamental Science Studies
Renewable and Sustainable Energy Reviews | Year: 2012

The global energy consumption is likely to grow faster than the population growth. The fuel consumption was growing from 6630 million tons of oil equivalents (Mtoe) in 1980 to 11,163 Mtoe in 2009. This projected consumption will increase 1.5% per year until 2030 and reach 16,900 Mtoe and the main drivers of this growth are mostly developing countries in Asia. Indonesia is one of the developing countries and energy supply is an important factor for all-around development. The country's energy consumption still depends on non-renewable energy such as crude oil, coal and natural gas as sources of energy. Utilization of fossil fuel continuously contributes to huge amount of greenhouse gases emission that leads to climate change. Facing such an unfavorable situation, the government of Indonesia prioritizes on energy supply securities by diversification of energy resources. The energy mixes in Indonesia based on five main resources; these are crude oil, natural gas, coal, hydropower, and renewable energy. Although the country encourages utilizing renewable energy, the contribution is only around 3%. Considering natural condition and geography, this country is blessed with great potential of renewable energy such as solar energy, wind energy, micro hydro and biomass energy. Noting the potential of renewable and sustainable energy resources in the country, the government must pay more attention on how to utilize it. Many efforts have been done to promote renewable energy such as to create energy policy and regulations, yet it still did not give any satisfactory result. Government, non-government agencies and the public should take a more proactive step to promote and use renewable energy in order to achieve the secure and environmentally sustainable energy resources. © 2011 Elsevier Ltd. All rights reserved.

Muchlisin Z.,University of Syiah Kuala
Archives of Polish Fisheries | Year: 2012

There is a paucity of information regarding introduced freshwater fishes in Indonesian waters. Hence, the objective of the present study was to evaluate the distribution of introduced fishes in the waters in the vicinity of Aceh, Indonesia. Fish sampling was conducted in five regions of Aceh at 17 sampling locations from January to June 2008. The samples were evaluated based on the Global Invasive Species Database and current publications and reports. A total of 114 species were recorded during the survey, of which nine were shortlisted as introduced species. Moreover, one additional introduced species, Atractosteus spatula (Lacepède), was recorded in April 2011. Overall, ten species of introduced fishes were noted in Aceh waters; of these Oreochromis mossambicus (Peters), was the most widely distributed.

Muslim A.,University of Syiah Kuala
International Review on Modelling and Simulations | Year: 2014

This Adsorption of copper using resin from thiosuphate leaching is a promoting process in gold extraction replacing carbon in cyanide process. A simultaneous model for the adsorption of copper complexes on resin in Ammoniacal Thiosuphate Resin Solution (ATRS) system has been developed by considering both reaction mechanism in solution and on resin, and using the multi-dimensional Newton-Raphson and Levenberg-Marquardt methods. The proposed model was simulated and validated using experimental data. As a result, the proposed model was in a very good agreement (R2 = 0.94). In addition, equilibrium constants associated with the exchange reactions of copper complexes on resin were obtained. The effect of independent variables on the adsorption of copper has been investigated based on the model simulation wherein the concentration of copper on resin exponentially decreased with the increase in equilibrium concentration of thiosuphate in solution. An optimization approach based on the proposed model was taken into account to maximize the concentration of most dominant copper complex of Cu(S2O3)2 3− on resin, and to obtain the optimal condition in the ATRS system with minimized reagent. © 2014 Praise Worthy Prize S.r.l. - All rights reserved.

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