39 research outputs found
Toward energy efficiency measures for design of the IDB-funded integrated classroom building in Universitas Negeri Malang
No full textUnder the support from the Islamic Development Bank (IDB), Universitas Negeri Malang (UM) is going to build two-identical nine storey integrated classroom buildings. The buildings were designed to have green building certificate by proposing and fulfilling the requirements from the Green Building Council Indonesia (GBCI) rating system. For design recognition (DR) phase, the system requires efforts and measures in energy efficiency. The paper analyses all design aspects and criteria included in the working drawings, technical specifications, and bill of quantities as provided in the buildings detailed-engineering-design (DED). The analysis covers the calculation of overall thermal transfer value (OTTV), artificial lighting, vertical transportation, and air conditioning system. By using energy modelling software, the OTTV for Building A and Building B, with 19,445.13 m2 of total floor area using VRF-AC system, are 31.78 W/m2 and 33.48 W/m2 respectively. The proposed annual energy use is 3510.90 MWh with the index of energy consumption is 180.55 kWh/m2 per-year. The results showed that by achieving 32.58% of energy efficiency, the DR of UM’s two classroom buildings is affordable to attain 11 points in the rating system
How to estimate green house gas (GHG) emissions from an excavator by using CAT’s performance chart
No full textKAJIAN DESAIN ATRIUM PADA BERBAGAI DIMENSI TERHADAP DISTRIBUSI DAN PERGERAKAN UDARA PADA BANGUNAN BERLANTAI BANYAK DENGAN DENAH BUJURSANGKAR DAN BERVENTILASI ALAMI Studi Model dengan Terowongan Angin
No full textAbstract: An atrium is a type of space which is physically shaped as an enclosure inside the building. It is modified from courtyard or an opened enclosure in middle of the building. This research is conducted to identify the effect of atrium size to the air movement velocity rate and its distribution through the rooms in a square-shaped natural-ventilated high rise building. It sets a design research of atrium building and tests the models in a wind tunnel. The varieties of the atrium size are determined in three different dimensions: 12x12 sqm, 18x18 sqm, and 24x24 sqm. The experiment method used in this research utilizes the model for observing the size variety impacting the air velocity and its distribution. The outline of the projected air movement will be illustrated by using Winsurf software. The result of the tests shows that in the atrium building: (1) the air movement penetrating the workspaces has velocity average as less than 0.1 m/s or has bad quality natural ventilation; (2) the effect of atrium size to the air movement in the workspaces indicates: in top level, bigger size of the atrium leads to lower air movement velocity, in mid level, bigger size of the atrium leads to higher air movement velocity, meanwhile in the base level, bigger size of the atrium leads to higher air movement as well. However, the vertical air movement is hardly to observe, because in the atrium the air distribution tends to move circular and creates turbulence; dominated by horizontal movement rather than vertical direction to the top level ventilation outlets
Sensitivity Analysis and Productivity Study of Directpipe Technology by using Simulation
No full textAbstractMany techniques of trenchless technologies have been evolved over time to install, maintain, and manage underground infrastructure system, but all of these fail to satisfy implementer due to complex implementation process, economy, and adaptability to different geological conditions. Directpipe technology is one of new technology that has been invented by German's Herrenknecht Inc. recently. It claims that the technology is economical, fast, and has a single step installation procedure. The objective of this paper is to analyze and evaluate that claim by using CYCLONE model simulation. The simulation is used to compare the Directpipe technology with traditional trenchless technology by incorporating real costs and duration into the model. Sensitivity analysis is carried out to find out a suitable combination of resources delivering utmost productivity
E3 – A user’s interface for quantifying total cost, diesel consumption, and emissions from bulldozers and its comparison to field data
No full textANALISIS MANAJEMEN PEMELIHARAAN BANGUNAN GEDUNG PERGURUAN TINGGI NEGERI DI KOTA MALANG
No full textAbstrak: Di Kota Malang terdapat beberapa perguruan tinggi negeri (PTN), diantaranya: Universitas Negeri Malang (UM), Universitas Islam Negeri Malang (UIN Malang), dan Potiteknik Negeri Malang (POLINEMA). Pemeliharaan bangunan gedung PTN di Kota Malang umumnya meliputi pemeliharaan struktur, arsitektur, dan utilitas. Penelitian ini dilakukan dengan tujuan: 1) mengetahui frekuensi pemeliharaan; 2) mengetahui biaya pemeliharaan; 3) mengetahui prioritas pemeliharaan bangunan gedung; dan 4) korelasi antara frekuensi dengan biaya pemeliharaan bangunan gedung dan prioritas dengan biaya pemeliharaan gedung PTN di Kota Malang. Metode yang digunakan dalam penelitian ini yaitu metode analisis deskriptif. Data yang digunakan didapatkan dari hasil kuesioner yang diberikan pada masing-masing PTN untuk selanjutnya dianalisis untuk menjawab beberapa rumusan masalah. Hasil penelitian menunjukkan bahwa frekuensi pemeliharaan bangunan gedung masing-masing perguruan tinggi negeri yaitu UM, UIN Malang, dan POLINEMA sering mengalami pemeliharaan untuk komponen utilitas. Biaya pemeliharaan bangunan gedung masing-masing perguruan tinggi negeri yaitu: 1) pemeliharaan dinding dan cat dinding, pemeliharaan penutup atap dan instalasi listrik, dan pemeliharaan jaringan telepon dan internet berturut-turut untuk UM, UIN Malang, dan POLINEMA. Prioritas pemeliharaan bangunan gedung masing-masing perguruan tinggi negeri yaitu: 1) UM memprioritaskan pemeliharaan pada komponen utilitas, 2) UIN Malang memprioritaskan pemeliharaan pada komponen utilitas dan struktur, dan 3) POLINEMA memprioritaskan pemeliharaan pada komponen utilitas dan struktur. Korelasi periode dengan biaya pemeliharaan bangunan gedung dan prioritas dengan biaya pemeliharaan bangunan gedung masing-masing perguruan tinggi negeri yaitu: 1) UM mempunyai hubungan yang cukup, 2) UIN Malang mempunyai hubungan yang rendah, dan 3) POLINEMA mempunyai hubungan yang cukup.Kata-kata kunci: pemeliharaan Bangunan gedung, perguruan tinggi negeri, KotaMalangAbstract: In Malang, there are several state universities (PTN), including: University Negeri Malang (UM), Negeri Malang Islamic University (UIN Malang), and Potiteknik Negeri Malang (Polinema). Maintenance of buildings Universities in Malang generally include maintenance of the structure, the architecture, and utilities. This research was conducted in order to: 1) determine the frequency of maintenance; 2) know the maintenance costs; 3) identifies priorities for the maintenance of buildings; and 4) the correlation between the frequency of the maintenance costs of buildings and maintenance costs are a priority with State building in the city of Malang. The method used in this research is descriptive analysis method. The data used is obtained from questionnaires given in each State to further analyzed to answer some formulation of the problem. The results showed that the frequency of maintenance of buildings of each public university namely UM, UIN Malang, and Polinema frequent maintenance for utility components. Building maintenance costs of each public university namely: 1) maintenance of the wall and paint the walls, roofing and maintenance of electrical installations, and maintenance of the telephone network and the Internet in a row for UM, UIN Malang, and Polinema. Priority maintenance of buildings of each public university namely: 1) UM prioritize maintenance on utility component, 2) UIN Malang prioritize maintenance on utility components and structures, and 3) Polinema prioritize maintenance on utility components and structures. Correlation period with maintenance costs of buildings and maintenance costs are a priority to the building of each public university namely: 1) MW has enough relationship, 2) UIN Malang has a low correlation, and 3) Polinema have enough relationship.Key words: maintenance of buildings, universities, Malan
Towards the greenship assessment and certificate of new building Design Recognition (DR) for the design of IDB-funded integrated classroom building Universitas Negeri Malang, Indonesia
No full textTo foster Universitas Negeri Malang (UM) as the Center of Excellence in Learning Innovation, with the support from the Islamic Development Bank (IDB), two 9-storeys integrated classroom buildings will be built, having the total built area about 44,800 sqm, which are divided exactly in two rectangle-shaped towering blocks. The buildings are projected to have green building status for Design Recognition (DR) by approaching GBCI’s greenship rating system. By using DED documents of the buildings, this study analyzes technical and engineering aspects to fulfill greenship requirements and recommends a specific level of greenship. The results show that overall targeted score is 47 and recommend Gold level of greenship
Towards the greenship assessment and certificate of new building Design Recognition (DR) for the design of IDB-funded integrated classroom building
No full textTo foster Universitas Negeri Malang (UM) as the Center of Excellence in Learning Innovation, with the support from the Islamic Development Bank (IDB), two 9-storeys integrated classroom buildings will be built, having the total built area about 44,800 sqm, which are divided exactly in two rectangle-shaped towering blocks. The buildings are projected to have green building status for Design Recognition (DR) by approaching GBCI’s greenship rating system. By using DED documents of the buildings, this study analyzes technical and engineering aspects to fulfill greenship requirements and recommends a specific level of greenship. The results show that overall targeted score is 47 and recommend Gold level of greenship
The Analysis of the Impact of Building Openings Design Variations on Thermal Comfort and Airflow Velocity by using CFD Simulation
No full textThermal comfort is very important to support a building’s user productivity. This study was conducted to investigate thermal comfort and airflow velocity in the engineering laboratory building at the State University of Malang.Preliminary observations have shown that the average room air temperature was around 27 - 31°C, which caused the uncomfortable condition. Thermal comfort enhancement in this study is investigated by applying several variations and treatments to existing openings. By using descriptive quantitative and experimental methods, the analysis uses the Computational Fluid Dynamics (CFD) simulation method with the ANSYS Workbench 19.0 Program. The simulation was applied to seven rooms with various types of openings. Parameters used in the simulation process are: 1) room geometry data consisting of images, room area, and location of ventilation openings, and 2) measurement reference points such as airflow velocity and room temperature. The dimensions of the openings will be observed by varying the treatment in each room, namely by opening all the inlets in the room (S), opening the inlets on the air vents only (J), and opening the inlets on the windows only (V). Primary data in the form of room temperature, airflow velocity, relative humidity, and physical dimensions of buildings are obtained through direct observation. The simulation results show that the maximum airflow velocity of the rooms (0.34 m/s) is found in the largest dimension variation of the inlet area of the opening (13.15 m2). The lowest temperature is found in the rooms with the smallest dimension of inlet (28oC) with the value of room temperature in the range of 27.5oC – 30.2°C. The statistical analysis of one-way ANOVA shows that by using a significance level of 0.05, there is an effect of variations in the design of openings on the level of thermal comfort in each room
PENINGKATAN KUALITAS BELAJAR MAHASISWA PADA MATAKULIAH ILMU UKUR TANAH MELALUI MODEL PEMBELAJARAN QUANTUM
No full textAbstract: The objective of this research is to (1) improve the student’s learning quality in the lecture of Site Mapping, and (2) improve the quality of student’s learning achievement through the Quantum Learning. This research, which is conducted under Teaching Grant Program, uses quantitative and qualitative approaches with Action Research Method. Some strategies used in implementing the Quantum Learning is set out related to classroom arrangement, teacher’s and student’s activities, selected learning methods, and teaching general form. The result reveals that: First, the Quantum Learning has better quality significantly (represented by p < 0.05) than the conventional method. It is indicated by the improvement of student’s learning activity, the coordination within workgroup, the improvement of learning motivation, and the avoidance of being fed up with learning materials. Second, the Quantum Learning gives better learning achievement significantly (represented by p < 0.05). Third, there are some remarks concerning Quantum Learning method that (a) the fitness with overall scenario, (b) student’s assistantship process regarding learning materials, (c) some initial questions raised before lecture, (d) inserting applause during lecture and presentation session, and (e) sequence of seating
