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Jurnal Internasional

Teenager Perception the Apsari Park Aesthetic (Review on Vegetation Arrangement)

Amir Mukmin Rachim1,2*, Antariksa3, Surjono4, and Lisa Dwi Wulandari3

1Environmental Science Doctoral Degree Program Brawijaya University, Malang, Indonesia
2Department of Architecture, Faculty of Civil Engineering and Planning, Adhi Tama of Institute Technology, Surabaya, Indonesia
3Department of Architecture, Faculty of Engineering, Brawijaya University, Malang, Indonesia
4Department of Urban and Regional Planning, Faculty of Engineering, Brawijaya University,
Malang, Indonesia

*Corresponding author

Abstract

Surabaya community always busy with routine, including the teenagers. Many teenagers visited Apsari Park to refresh the mind. The visitors are dominated by teenager. The attraction from Apsari park is the diversity of vegetation. This study aims to analyze the teenager’s perception about vegetation arrangement at Apsari park. Study design through theoretical studies. We used quantitative research method and multi-stage analysis. Data were collected by random sampling and structured interview. The research process was carried out by distributing questionnaires. The results can be a guidance in managing the design of vegetation and create a government policy about the City Parks.

Keywords: perception, teenagers, aesthetic, Apsari park, vegetation

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DOI: 10.22161/ijaers.5.4.26

Teenager Perceptional Assessment Factors to the City Park Aesthetics at Surabaya Bungkul Park

Amir Mukmin Rachim1,2*, Antariksa3, Surjono4, Lisa Dwi Wulandari3

1Environmental Science Doctoral Degree Program, Brawijaya University, Malang, East Java,
2Department of Architecture, Institute of Technology Adhi Tama, Surabaya, East Java,
3Department of Architecture, Brawijaya University, Malang, East Java,
4Department of Urban and Regional Planning, Brawijaya University, Malang, East Java,
Indonesia.

Abstract

In an effort to eliminate boredom because of routine, teenagers in urban areas usually visit City Park for cool, natural and aesthetic atmosphere. City Park has become a necessity for them. The problem is, what factors play in the perception of teenagers in evaluating the aesthetics of City Parks. The purpose of this study is to analyse and determine the factors. To support the data, an examination on the results of previous studies was conducted. The descriptive research method was employed through field observations by distributing questionnaires to teenagers as the respondents. Data collection was performed using random sampling. Analysis and discussion were done by sorting and counting each respondent selected variables (quantitative) before it was evaluated to determine the factors of teenager’s perception in evaluating City Park aesthetics. This study showed that the arrangement and diversity of vegetation, facilities, safety and comfort of City Park were the main factors used by teenagers in evaluating the aesthetics of city parks. This research supports the emergence of a new theory about teenager’s perception on City Park aesthetics, as well as contributing to the development of knowledge through new research on City Park.

Keywords: factors, evaluation, perception, teenagers, aesthetics, city parks

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Original source: JAEBS – October, 2017

PERFORMANCE ANALYSIS OF BIOGAS STOVES WITH VARIATIONS OF FLAME BURNER FOR THE CAPACITY OF BIOGAS 1 M3 / DAY

Syamsuri, Suheni and Yustia W. M.

Depatrment of Mechanical Engineering, Institut Teknologi Adhi Tama Surabaya, Indonesia
Depatrment of Chemical Engineering, Institut Teknologi Adhi Tama Surabaya, Indonesia
E-Mail: [email protected]

ABSTRACT
Natural Resources on earth are very abundant one of Natural Resources is Fuel. But the last few years the energy
is a crucial issue in the world. One alternative is biogas energy. Biogas is a viable energy used technically, socially, and economically mainly to solve the energy problems in rural areas. In the present study, aims to identify and analyze the performance of the biogas stove. In this study, will be tested various forms burner i.e. regular shaped burner, Cyclone 1, and Cyclone 2. The results showed that the power of a cyclone burner biogas stove shape is higher than that using a biogas  stove burner usual form. As for the efficiency of biogas stoves shape cyclone burner 2 is higher than the efficiency of  biogas stoves that use a form of ordinary burner. From another aspect, namely the mass of the steam generated by the cyclone burner type 2 is greater than the other burne.

Keywords: performance stove, variation, burner, biogas

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CHARACTERISTIC OF VORTEX IN A MIXING LAYER FORMED AT NOZZLE PITZDAILY USING OPENFOAM

Suheni and Syamsuri
Department of Mechanical Engineering, Adhi Tama Institute of Technology Surabaya, Indonesia
E-Mail: [email protected]

ABSTRACT
PitzDaily nozzle was the most substantial component in a gas turbine. This nozzle was used to mix air with
propane. In the application value of turbulence and vortex center was very important for this type of nozzle. Reynolds number was a parameter used to see its effect on the value of turbulence and vortex center. The method applied was a numerical simulation by using OpenFOAM. This simulation was performed to determine the distribution of pressure,streamline, turbulence, and vortex center. The study was conducted by varying Reynolds numbers 12210, 50000, and 100000. Grid independent test was made to validate with the results of previous research. By this simulation results indicated that this method was feasible and the solver was highly accurate. The results showed that the higher the value of Reynolds number, the further away of vortex center rear nozzle. The mark of turbulence and vortex length were also increased. In addition to that the larger the value of this then the mixture of air and propane formed a fine grained, so it
became more perfect combustion.

Keywords: nozzle pitzdaily, openFOAM, variation of reynolds number.

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EXPERIMENTAL STUDY OF BIOMASS STOVE PORTABLE WITH AND WITHOUT FIN WHICH BRIQUETTES FUEL FROM CORNCOB

Syamsuri and Suheni
Department of Mechanical Engineering, Adhi Tama Institute of Technology Surabaya, Indonesia
E-Mail: [email protected]

ABSTRACT
The increase in energy demand caused by population growth and resource depletion of oil reserves as well as the
problems of emissions from fossil fuels put pressure on every country, especially Indonesia. Briquettes of corncob were one of the alternatives. In addition replaced the firewood, they also did not potentially damage the ecology of the forest and could replace fossil fuel reserves that were running low. Water boiling test was used to determine the performance of a portable stove with and without fin. Inside the stove there were 3 pots: pot 1 contained egg, pot 2 contained of rice, and pot 3 was vegetables. This study was obtained for the power of furnace for different diameter of briquette 3/4 “, 1” and 1.5” without fins was equal to 0.87 kW, 1.12 kW and 1.57 kW, respectively. Efficiency 17.58%, 19.7%, and 23.15%. While the furnace with diameter briquette 3/4 “, 1” and 1.5” using fins obtained the power 0.98 kW, 1.32 kW and 1.96 KW. Efficiency 14.84%, 20.91% and 25.27%. The fastest cooking time was gained for the finned pan with diameter of briquettes 1.5” over 20 minutes.

Keywords: briquettes, corncob, portable furnaces fins and without fins.

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