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IPTEK Journal of Proceedings Series

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Published by Institut Teknologi Sepuluh Nopember Surabaya

ISSN : 23546026 EISSN : - DOI : -

Core Subject : Science,

Computer Science & IT

IPTEK Journal of Proceedings Series publishes is a journal that contains research work presented in conferences organized by Institut Teknologi Sepuluh Nopember. ISSN: 2354-6026. The First publication in 2013 year from all of full paper in International Conference on Aplied Technology, Science, and Art (APTECS). It publish one time a year after the held of APTECS event.

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Articles 1,079 Documents

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Proses Katalitik Pirolisis Untuk Cracking Bitumen Dari Asbuton dengan Katalis Zeolit Alam Susianto Susianto; Yosita Dyah Anindita; Azka Afuza; Eldira Nindri Wena; Ali Altway
IPTEK Journal of Proceedings Series No 2 (2018): The 2nd Conference on Innovation and Industrial Applications (CINIA 2016)
Publisher : Institut Teknologi Sepuluh Nopember

Asbuton adalah aspal alam yang terkandung dalam deposit batuan terdapat di Pulau Buton, Sulawesi Tenggara. Asbuton berpotensi menjadi bahan bakar alternatif. Penelitian tentang pirolisis bitumen menjadi hidrokarbon (heavy oil) sudah mulai dikembangkan, namun belum banyak dilakukan. Oleh karena itu penelitian ini bertujuan untuk mempelajari pengaruh temperatur pirolisis terhadap % yield masing – masing produk, mempelajari pengaruh penambahan katalis pada masing-masing temperatur pirolisis terhadap % yield masing – masing produk, mempelajari pengaruh temparatur pirolisis terhadap % yield produk cair dengan dan tanpa katalis. Pirolisis bitumen yang terkandung dalam asbuton dilakukan secara semi-continue dalam reaktor pirolisis pada kondisi vakum dengan variable temperatur pirolisis sebesar 300oC, 350oC, 400oC, 450oC, dan 500oC. sedangkan zeolit klipnotilolit sebagai katalis divariasi sebesar 5%, 7%, dan 9% dari berat feed asbuton. Feed asbuton sebanyak 228 gram dicampur dengan katalis sesuai perbandingan kemudian dimasukan ke dalam reaktor pirolisis. Heater dioperasikan sesuai temperatur yang diinginkan kemudian di vakum dengan menggunakan pompa vakum. Gas yang terbentuk akan dialirkan melalui kondensor yang dijaga temperaturnya pada 25oC. Gas yang terkondensasi (produk cair) akan tertampung dalam erlenmeyer, sedangkan gas yang tidak terkondensasi (produk gas) akan ditampung dalam kantong gas. Kemudian %yield produk masing-masing dianalisa. Hasil penelitian menunjukan bahwa metode pirolisis dapat digunakan untuk cracking bitumen yang terkandung dalam asbuton dengan kondisi terbaik untuk mendapatkan yield produk cair tertinggi sebesar 61.531% diperoleh dalam kondisi temperatur pirolisis 350oC dengan penambahan 9% katalis.

Calculation Method to Analize The Concordance Between Supply and Demand of Bus Public Transport For Morning Commuter Trip at Gubeng Station Jos Oktarina Pratiwi; Hitapriya Suprayitno
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Surabaya is the center of activity for the province of East Java and eastern Indonesia. Commuting to Surabaya is very high. Thus, the concordance between supply and demand of public transport for commuter trip must be evaluated. For this purpose a calculation method has to be developed. The research objective has been achieved. The method calculation based on special matrix technics for overlay calculation.

Adaptation | A Reflection on Contemporary Chinese Architecture (In four case-studies) Bert Hugo Raf De Muynck
IPTEK Journal of Proceedings Series No 3 (2017): 8th International Conference on Architecture Research and Design 2016
Publisher : Institut Teknologi Sepuluh Nopember

Reflecting upon a decade of engaging with, researching, writing, curating and discussing critical and contemporary Chinese architectural developments (profession and projects), the author presents ‘adaptation’ as a modus operandus for Chinese architects to bypass both rapid cultural changes as well as a volatile and demanding building construction climate. Seeking to understand the underlying concepts, methods and motives behind selected projects of four distinct contemporary practices (Amateur Architecture Studio, Atelier Chen Haoru, ZAO/standardarchitecture, Zhao Yang studio) the author discusses how these adapt to progress. Besides, the aforementioned practices encompass in China three distinct generations of architects, all practicing, to a large extent, in a similar spatial, social and economical environment. Focusing on the passage of time and the progress of the profession, rather than pointing out a figure or structure frozen in time, and through case-studies linked to the authors’ exhibition ‘ADAPTATION – architecture and change in China’ (Venice Architecture Biennale 2014), the paper seeks to discuss how architects effectively adapt and transform their thinking, practice and design in relation to ongoing demands and insights. Relating these to professional discourse, use of local materials and knowledge, to the volatility of clients, governments and markets, these alternative practices (alternative to the dominance of design institutes, to generic solutions and to Western, modernist, theories and practice) aspire to keep control over the design process. Across the four discussed practices, similarities in approach, materiality, methodology, educational and environmental concerns are contrasted with differences in architect-client relation, public appreciation, public and personal influence, laws, academic discourse. Through the lens of understanding how architects transform their modus operandi, tentatively the concept of ‘in(ter)depedent practices and projects’ (or mutual reliance between different generations of independent architects) can be explored.

Factors of Design Errors in Construction Project (A Review) Dedy Farhan Fuadie; Yani Rahmawati; Christiono Utomo
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Design is an important step in construction project. Errors in design cause failure in construction stage as well as the project development. Misunderstandings of design concept between parties lead to design errors that able to decrease the quality of construction works, and also cause cost overruns and project delays. Design errors also contribute to engineering failures, which can result in accidents and loss of life. Preventive actions in reducing the errors are necessary. In accordance with these issues, this research is conducted with main purpose to identify the causal factors of design error. Review to previous studies with main topic of design error was taken in order to identify the causal factors. The factors were then validated in an oil and gas industry through observation in design process and also interview to parties whom have experiences in design process. Based from research, it is found that there are 5 main causal factors. The factors are man, method, material, machine, and environment. There are also several factors that are less in accordance with the conditions in the field such as cognitive dissonance, competitive tendering, and adversarial attitudes. By knowing the cause of the design error, can be done to prevent the effort of guarantee project sustainability.

Heat Rate Gap and Cost Analysis Due to Increase of Condenser Pressure in A 660 MW Combined Cycle Power Plant Muchlisin Muchlisin; Budi Utomo Kukuh Widodo
IPTEK Journal of Proceedings Series No 1 (2019): 4th International Seminar on Science and Technology 2018 (ISST 2018)
Publisher : Institut Teknologi Sepuluh Nopember

A condenser is one of the main equipment in a Combined Cycle Power Plant (CCPP) cooling system which has a great influence on steam turbine output and thermal efficiency of the whole power plant as well. The objective of this study is to analyze the effect of increase in condenser pressures on the heat rate and electricity production costs. The primary data is acquired from the DCS. These data are then compared to those of the best performance operating data. The differences of these two data of 23 parameters, are then integrated with the impact factor to gain the heat rate loss. Based on the heat rate loss, then the cost of electricity production is established accordingly. The study concludes that the increase of condenser pressure from 2.41 inHgA to 2.82 inHgA results in increase of plant heat rate 19.55 kcal/kWh. The 5 great parameters to contribute to this loss are: HP and LP steam flows, condenser pressure, stack temperatures of HRSG 1.3 and 1.2. Meanwhile, the cost of production rises up from 751 IDR/kWh to 805 IDR/kWh

Analysis The Effect of Total Quality Management, Technology, and Knowledge Management on Product Quality in Indonesia Construction Industry Mohammad Yogie Latansa; Tri Joko Wahyu Adi; Mohammad Arif Rohman
IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT)
Publisher : Institut Teknologi Sepuluh Nopember

The construction industry is being faced with rapid development with a high level of competition. In the current global competition, construction companies must be able to compete in order to meet customer demand and satisfaction. In response to the competition, construction companies must efforts to develop products and services. In the development process knowledge management has a role in improving quality. In addition, the use of technology and the implementation of total quality management through knowledge management can improve quality. Quality is the main factor in order to develop products and services to encourage sustainable achievement. This research aims to analyze the factors that influence technology, implementation of total quality management, and knowledge management on the product construction quality in Indonesia. The data used in this research are primary data. The factor identification process is carried out by distributing questionnaires to contractors which involved in the construction industry in Indonesia as respondents. Furthermore, the data obtained were analyzed using the relative importance index ( RII) to obtain a sequence of factors that influence. Then the influencing factors analyzed using structural equation modelling (SEM) with SPSS statistical software. This research expected to resulting models of factors that influence technology, implementation of total quality management, and knowledge management on product construction quality in Indonesia

Interfacial Properties and Foamability of Amphiphilic Molecules Stella Widyaningtyas; Audrey Drelich; Isabelle Pezron
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Surface-active molecules are widely used in industry. Triton X-100, sodium lauryl ether sulfate, sodium dodecyl sulfate and bovine serum albumin are commonly used in daily products. They can form foams because of adsorption phenomena at the surface. Each molecule has its own characteristic and foaming ability. This research deals with relation between interfacial properties and foamability by using three different methods: the Wilhelmy plate method to verify the CMC value, the maximum bubble pressure to determine dynamic surface tension, and the Bikerman method to assess the foamability. Interfacial properties and foamability will be studied and the difference observed between surfactant and protein will be discussed.

Ammonia Removal Using Coconut Shell Based Adsorbent: Effect of Carbonization Duration and Contact Time Oktavitri, Nur Indradewi; Purnobasuki, Hery; Kuncoro, Eko Prasetyo; Purnamasari, Indah
IPTEK Journal of Proceedings Series No 4 (2017): 2nd International Seminar on Chemistry 2016
Publisher : Institut Teknologi Sepuluh Nopember

The preparation of adsorbent using activated coconut shell was investigated at carbonization duration and adsorption contact time.Â The coconut shell was activated using physical and chemical activation.Â This research focused on variation of physical activation such as carbonization. The carbonization had two steps, there are high temperature and medium temperature. This research used 500oC at high temperature and 220oC at medium temperature. The duration of medium temperature was varied in 1, 2, and 4 hours. The chemical activation used H3PO4. The ammonia concentration of simulated wastewater around 6000 mg/l. The acclimatization period was 8 d. The coconut shell ability for ammonia removal was observed after acclimatization period in 0, 2, 4, 6, and 8d.Â The effect of carbonization period and contact time on ammonia adsorption of dairy simulated wastewater was discussed in this research. This research used anaerobic digestion with 10 liter of volume. The concentration of ammonia was measured with nessler methods. Carbonization duration and contact time increased the adsorption capacity. From the obtained result of adsorption isotherm, the Langmuir equation was the best fit for all carbonization period, especially 4-hour carbonization period.

Inovasi SIEC-ITS dalam Implementasi Teknologi Informasi dan [Tele]Komunikasi Mendukung Framework Smart-city yang Berkelanjutan Endroyono Endroyono; Achmad Affandi; Eko Setijadi; Gatot Kusrahardjo; Djoko Suprajitno
IPTEK Journal of Proceedings Series No 2 (2018): The 2nd Conference on Innovation and Industrial Applications (CINIA 2016)
Publisher : Institut Teknologi Sepuluh Nopember

Smart-city & Intelligent Approach” merupakan terminologi yang membuat kota-kota di Indonesia tertantang untuk memanfaatkan TIK di semua aktifitas. Namun demikian, ada data, bahwa lebih dari 47% proyek TIK dinyatakan kurang berhasil. Hal ini mendorong SIEC-ITS melakukan pengembangan dan inovasi, yang tidak saja yang bersifat makro (kebijakan dan frame work), tapi juga aplikasi nyata di lapangan, berupa hardware dan software. Master-Plan Intelligent Transportation Surabaya (ITS) adalah contoh produk makro yang dijadikan rujukan hingga saat ini. Master Plan ini melahirkan inovasi aplikasi S-ITS, sebuah sistem pengaturan lalu-lintas adaptif yang seluruh interfacenya dikembangkan oleh anak-anak bangsa. SIEC-ITS juga sedang menguji coba sistem manajemen armada dan sistem manajemen revenu untuk angkutan massal cepat (AMC) Surabaya. Untuk melengkapi itu, SIEC-ITS melakukan integrasi sistem e-Dishub, sebagai bagian dari konsep “Smart-Mobility”. Dengan interintegrasi ini, maka data dan informasi dari aplikasi e-Lalin, e-Transport, e-Perijinan, e-Pengujian, e-Sekretariat, e-Terminal, termasuk e-Parkir akan berada dalam satu platform terpadu, sehingga manajemen lalu-lintas, penataan transportasi dan pengendalian sarana-prasarana dapat dilakukan secara tepat, efektif dan efisien.

Study of Water Retention Measurement on Concrete Using Paper Filter Whatman No.42 Deris Faisa Ralindra; Ria Asih Aryani Soemitro; Indarto Indarto; Ridho Bayuaji
IPTEK Journal of Proceedings Series No 1 (2019): 4th International Seminar on Science and Technology 2018 (ISST 2018)
Publisher : Institut Teknologi Sepuluh Nopember

This study aimed to know water retention on concrete using paper filter Whatman No.42. The study was conducted as experimental in laboratory by making two types of specimen with different Water Cement Ratio (WCR); 0.5 and 0.6. Each specimen was immersed for 28 days. Next step was finding the time of consistency water content on specimen and paper filter. Then, water retention could be measured. As a validation of water retention measurement, so the results were compared with saturated salt solution method in dessicator. This study used NaCl, KCl, and H2SO4 as saturated salt solution. The results of water retention measurement were shown in graphs

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