scholarly journals EVALUASI HUBUNGAN BIAYA INVESTASI TERHADAP KUALITAS KENYAMAN PADA PERUMAHAN

2019 ◽  
Vol 15 (2) ◽  
pp. 44-59
Author(s):  
Pratiwi Dian Ilfiani ◽  
Suprapto Siswosukarto ◽  
Djoko Sulistyo
Keyword(s):  
Population Growth ◽  
Regional Development ◽  
Air Temperature ◽  
Natural Ventilation ◽  
Natural Lighting ◽  
Acoustic Comfort ◽  
Building Area ◽  
Home Investment ◽  
Indoor Comfort ◽  
Design Factors

 ABSTRACTThe demand for housing has never stopped because the population growth  always increased. Technical Guidelines for the Construction of Healthy Houses issued by the Minister of Regional Regional Development states that a house as a place of residence must meet indoor health and comfort requirements which is influenced by lighting, airing, air temperature and humidity. This study uses natural lighting, natural ventilation, room humidity and acoustic comfort as variables. The object of this study is limited to the building area of a maximum of 70 m2 with four sample that maintain the original house shape from the design of the developer. Three out of four houses showed the relation between investment and indoor comfort, the higher investment improve indoor comfort. But, one of them showed different pattern, this is because the investment value is influenced by the accessibility of site and buildings.This study found that indoor comfort is influenced by design factors and micro climates. While home investment is influenced by the design and accessibility of site and buildings.Keywords: indoor comfort, lighting, natural ventilation, humidity, acoustic comfort ABSTRAK Tuntutan adanya sebuah rumah tidak pernah berhenti karena pertumbuhan penduduk yang selalu meningkat. Pedoman Teknis Pembangunan Rumah Sederhana Sehat yang dikeluarkan oleh Menteri Permukiman dan Prasarana Wilayah (2002) menyatakan bahwa rumah sebagai tempat tinggal yang memenuhi syarat kesehatan dan kenyamanan dipengaruhi aspek  pencahayaan, penghawaan, serta suhu udara dan kelembaban dalam ruangan. Adapun variabel yang diangkat terdiri dari pencahayaan alami, penghawaan alami, kelembaban ruang dan kebisingan. Objek dari penelitian ini dibatasi pada dengan luas bangunan maksimal 70 m2 dengan empat sampel rumah yang mempertahankan bentuk rumah asli dari desain pengembang. Dari empat rumah, tiga diantara menunjukkan hubungan bahwa semakin tinggi investasi semakin baik kualitas kenyamanan di dalamnya. Akan tetapi satu diantaranya memperlihatkan pola yang berbeda, hal tersebut dikarenakan nilai investasi yang dipengaruhi oleh nilai aksesibilitas lahan dan bangunan. Penelitian ini pada akhirnya mendapatkan hasil bahwa kenyamanan dalam ruang dipengaruhi oleh faktor desain rumah dan iklim mikro. Sedangkan investasi rumah dipengaruhi oleh desain dan nilai aksesibilitas lahan dan bangunan. Kata kunci: kenyamanan dalam ruang, pencahayaan, penghawaan, kelembaban, kebisingan

scholarly journals Thermal Performance of Single-Story Air-Welled Terraced House in Malaysia: A Field Measurement Approach

2020 ◽  
Vol 13 (1) ◽  
pp. 201
Author(s):  
Pau Chung Leng ◽  
Gabriel Hoh Teck Ling ◽  
Mohd Hamdan Ahmad ◽  
Dilshan Remaz Ossen ◽  
Eeydzah Aminudin ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Air Temperature ◽  
Thermal Performance ◽  
Field Measurement ◽  
Natural Ventilation ◽  
Residential Buildings ◽  
Wet Bulb Globe Temperature ◽  
Natural Lighting ◽  
Ventilation Performance ◽  
Globe Temperature

The provision requirement of 10% openings of the total floor area stated in the Uniform Building By-Law 1984 Malaysia is essential for natural lighting and ventilation purposes. However, focusing on natural ventilation, the effectiveness of thermal performance in landed residential buildings has never been empirically measured and proven, as most of the research emphasized simulation modeling lacking sufficient empirical validation. Therefore, this paper drawing on field measurement investigates natural ventilation performance in terraced housing with an air-well system. The key concern as to what extent the current air-well system serving as a ventilator is effective to provide better thermal performance is to be addressed. By adopting an existing single-story air-welled terrace house, indoor environmental conditions and thermal performance were monitored and measured using HOBO U12 air temperature and humidity, the HOBO U12 anemometer, and the Delta Ohm HD32.3 Wet Bulb Globe Temperature meter for a six-month duration. The results show that the air temperature of the air well ranged from 27.48 °C to 30.92 °C, with a mean relative humidity of 72.67% to 79.25%. The mean air temperature for a test room (single-sided ventilation room) ranged from 28.04 °C to 30.92 °C, with a relative humidity of 70.16% to 76.00%. These empirical findings are of importance, offering novel policy insights and suggestions. Since the minimum provision of 10% openings has been revealed to be less effective to provide desirable thermal performance and comfort, mandatory compliance with and the necessity of the bylaw requirement should be revisited.

scholarly journals GREEN BUILDING IMPLEMENTATION STUDY BASED ON EFICIENCY ENERGI in RUMAH JOGLO as DEVELOPMENT OF TEACHING MATERIALS COURSE PROGRAM AND PLANNING APPLICATION

2017 ◽  
Vol 1 (2) ◽  
Author(s):  
Andini Dwi Prihatini ◽  
AG Thamrin ◽  
Chundakus Habsya
Keyword(s):  
Air Temperature ◽  
Natural Ventilation ◽  
Green Building ◽  
Implementation Study ◽  
Research Subjects ◽  
Air Velocity ◽  
Teaching Materials ◽  
Natural Lighting ◽  
Object Of Study

<p>Abstract: This research was purposed to knowing (1) the implementation of green<br />building on aspect natural lighting in Rumah Joglo terms of SNI 03-6197-2000; (2) the<br />implementation of green building on aspect natural ventilation in Rumah Joglo terms<br />SNI 03-6572-2001; (3) the implementation of green building in Rumah Joglo for<br />development of teaching materials course Program and Planning Application in PTB<br />FKIP UNS. This research was conducted by measuring the natural lighting, air<br />velocity, relative huminidity, and air temperature in each room in the Rumah Joglo as<br />well as the occupants questionnaire provide. The subjects were five Rumah Joglo. The<br />result showed that 89,74% of natural lighting in the research subjects does not meet the<br />requirements of SNI 03-6197-2000, 82,25% of air velocity does not meet the<br />requirements of SNI 03-6572-2001, for relative huminidity and air temperature in the<br />object of study does not meet the requirements of SNI 03-6572-2001. The result of this<br />research can be use for development of teaching materials course Program and<br />Planning Application in PTB UNS.<br />Keyword: Joglo, Natural Lighting, Natural Ventilation</p>

scholarly journals Indoor Climate Performance in a Renovated School Building

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2827
Author(s):  
Pavla Mocová ◽  
Jitka Mohelníková
Keyword(s):  
Indoor Environment ◽  
Natural Ventilation ◽  
Carbon Dioxide Concentration ◽  
Heating System ◽  
Climatic Conditions ◽  
School Building ◽  
Ventilation Strategy ◽  
Indoor Climate ◽  
Microbiological Testing ◽  
Indoor Comfort

Indoor climate comfort is important for school buildings. Nowadays, this is a topical problem, especially in renovated buildings. Poorly ventilated school classrooms create improper conditions for classrooms. A post-occupancy study was performed in a school building in temperate climatic conditions. The evaluation was based on the results of long-term monitoring of the natural ventilation strategy and measurements of the carbon dioxide concentration in the school classroom’s indoor environment. The monitoring was carried out in an old school building that was constructed in the 1970s and compared to testing carried out in the same school classroom after the building was renovated in 2016. Surprisingly, the renovated classroom had a significantly higher concentration of CO2. It was found that this was due to the regulation of the heating system and the new airtight windows. The occupants of the renovated classroom have a maintained thermal comfort, but natural ventilation is rather neglected. A controlled ventilation strategy and installation of heat recovery units are recommended to solve these problems with the classroom’s indoor environment. Microbiological testing of the surfaces in school classrooms also shows the importance of fresh air and solar radiation access for indoor comfort.

Measurement of indoor environmental parameters and analysis of the condensation phenomenon in urban utility tunnels

2022 ◽  
pp. 1420326X2110564
Author(s):  
Chuanmin Tai ◽  
Guansan Tian ◽  
Wenjun Lei
Keyword(s):  
Water Supply ◽  
Surface Temperature ◽  
Air Temperature ◽  
Natural Ventilation ◽  
Environmental Parameters ◽  
Dew Point ◽  
Control Mode ◽  
Safe Management ◽  
Environmental Test ◽  
Water Supply Pipeline

Condensation is a major issue in the safe operation of utility tunnels. To address the condensation problem, the indoor air temperature, relative humidity (RH) and surface temperature in an urban utility tunnel in Jining were continuously measured, and the condensation conditions were surveyed and analysed. The results indicated that under natural ventilation conditions, the air temperature in the comprehensive cabin varied from 23.4°C to 24.5°C, the RH fluctuated between 86.4% and 95.3%, and the corresponding air dew point temperature (DPT) remained in the range of 22.2°C–22.9°C. The surface temperature of the water supply pipeline ranged from 17.8°C to 18.5°C, which was far lower than the DPT in the tunnel, resulting in serious condensation. A water supply pipeline with an anti-condensation design was developed based on environmental test data. A 25-mm-thick rubber plastic sponge insulation layer was used to thermally insulate the water supply pipeline, preventing further dew condensation. Furthermore, mechanical ventilation had little effect on reducing the RH in the tunnel and may actually cause dew condensation; therefore, a ventilation control mode was proposed in this study. These results are expected to provide basic data for further research and reference for the safe management of utility tunnels.

Passive Technology Resurrects Existing Buildings — Case Study on Design Contest of Renovation of Qingdao Hiser Hospital

2014 ◽  
Vol 584-586 ◽  
pp. 1858-1862
Author(s):  
Wei Dong Ji ◽  
Yan Wie Wang ◽  
Zhe Tang
Keyword(s):  
Natural Ventilation ◽  
Existing Buildings ◽  
Natural Lighting

This paper is based on the contest of renovation of Qingdao Hiser Hospital. It first analyzes the current problems existing in Qingdao Hiser Hospital, then, pinpointing to the problems, applies the concept of priority of passive technology to the design of renovation scheme, and finally, adopts passive technology to do the renovation design, to resolve problems like noises, natural lighting and natural ventilation, etc.

scholarly journals ENVIRONMENTAL MANAGEMENT IN THE HINTERLANDS OF NORTHERN SAMAR

2019 ◽  
Vol 7 (3) ◽  
pp. 163-176
Author(s):  
Felisa L. Sanico
Keyword(s):  
Environmental Protection ◽  
Natural Ventilation ◽  
Motor Vehicle ◽  
Positive Response ◽  
White Paper ◽  
Air Conditioner ◽  
Natural Lighting ◽  
Fluorescent Lamps ◽  
Local Water ◽  
And Mathematics

This study investigated the perceptions of the faculty of members, school official and students in terms of environmental protection and management. It employed random sampling using survey questionnaires to gather data from the respondents. Frequency counts and percentage were used to process the data. Most of the respondents had positive responses on waste reduction and management, as the commonly used environmental protection strategy in the school. A majority of them rejected plastics and agreed that these are harmful to the environment friendly products, are materials that can be recycled, and less favored materials are the non-toxic products, and a majority of the respondents favored that individual bulk packaging is preferred than bulk packaging of products from suppliers. High percentage favored that the classrooms are designed to make use of natural ventilation and natural lighting. Most of the respondents had negative responses on the issue of planning the campus in such a way as to reduce the use of motor vehicle in terms of motor boat as mode of transportation. There was a high percentage of positive response regarding the physical greening of the school, as observed in the entire campus. A majority of the respondents had positive responses on fluorescent lamps as the commonly used source of light, than of the use of incandescent. Most of the respondents had negative response on artesian well as the source of water, and a high positive response was observed regarding local water works as the source of water for everyday use.  Majority of the respondents agreed that office machines are turned off when not in use, and using the fans whenever possible also had a high positive response; only fewer respondents agreed on the usage of air conditioner. A majority of the respondents agreed that white paper is the most preferred kind of paper in the school. A majority of the respondents had positive response in using the used paper in photocopying articles as commonly used paper recycling or use of reduction program. A majority of the respondents agreed that composting biodegradable was right in the campus and wet waste sent to recyclers had a low positive response. There was a high percentage of positive response on disposable plastic utensils as the most discouraged material in the canteen. Disposable cups, disposable plates, paper napkins and plastic wrappers had also high percentage as materials discouraged in the canteen. A majority of the respondents agreed that waste segregation in the school is practiced. Most of the respondents agreed that containers for biodegradable and non-biodegradable are provided in the entire campus. A majority of the respondents favored that biodegradable materials are made to compose. Respondents favored that sealing properly before disposal of hazardous/chemicals water is done inside the campus. All the eight (8) environment concerns/themes are integrated in the curriculum. A majority of the respondents indicated that environment concerns/themes are incorporated in Music, Health and Physical Education. They are also integrated in English, Social Studies, Pilipino, and Mathematics.

On the thermal buffering of naturally ventilated buildings through internal thermal mass

2007 ◽  
Vol 580 ◽  
pp. 3-29 ◽  
Author(s):  
J. M. HOLFORD ◽  
A. W. WOODS
Keyword(s):  
Heat Exchange ◽  
Air Temperature ◽  
Natural Ventilation ◽  
Ventilation Rate ◽  
Temperature Cycle ◽  
Thermal Mass ◽  
Thermal Equilibration ◽  
Environment Temperature ◽  
Naturally Ventilated Buildings ◽  
Diurnal Fluctuations

In this paper we examine the role of thermal mass in buffering the interior temperature of a naturally ventilated building from the diurnal fluctuations in the environment. First, we show that the effective thermal mass which is in good thermal contact with the air is limited by the diffusion distance into the thermal mass over one diurnal temperature cycle. We also show that this effective thermal mass may be modelled as an isothermal mass. Temperature fluctuations in the effective thermal mass are attenuated and phase-shifted from those of the interior air, and therefore heat is exchanged with the interior air. The evolution of the interior air temperature is then controlled by the relative magnitudes of (i) the time for the heat exchange between the effective thermal mass and the air; (ii) the time for the natural ventilation to replace the air in the space with air from the environment; and (iii) the period of the diurnal oscillations of the environment. Through analysis and numerical solution of the governing equations, we characterize a number of different limiting cases. If the ventilation rate is very small, then the thermal mass buffers the interior air temperature from fluctuations in the environment, creating a near-isothermal interior. If the ventilation rate increases, so that there are many air changes over the course of a day, but if there is little heat exchange between the thermal mass and interior air, then the interior air temperature locks on to the environment temperature. If there is rapid thermal equilibration of the thermal mass and interior air, and a high ventilation rate, then both the thermal mass and the interior air temperatures lock on to the environment temperature. However, in many buildings, the more usual case is that in which the time for thermal equilibration is comparable to the period of diurnal fluctuations, and in which ventilation rates are moderate. In this case, the fluctuations of the temperature of the thermal mass lag those of the interior air, which in turn lag those of the environment. We consider the implications of these results for the use of thermal mass in naturally ventilated buildings.

Tall building influence on city wind pattern

2018 ◽  
Vol 29 (10) ◽  
pp. 1850086
Author(s):  
M. S. Almeida ◽  
A. D. Araújo ◽  
M. P. Almeida
Keyword(s):  
Population Growth ◽  
Numerical Simulations ◽  
Turbulence Model ◽  
Natural Ventilation ◽  
Tall Buildings ◽  
Navier Stokes ◽  
Urban Centers ◽  
Wind Pattern ◽  
Rans Equations ◽  
Weak Wind

The population growth in big urban centers generates the necessity for tall buildings. This phenomenon happens also in tourist regions where it is necessary to host many people. However, locations with high buildings interfere with the flow of the wind and can affect the comfort and safety of pedestrians at street level. Tall buildings barrier reduces the natural ventilation in regions far from the beach. This work presents the results concerning the effects created by tall buildings on Mucuripe beach, Fortaleza, Brazil. We performed numerical simulations to verify the wind interference with buildings in an area of [Formula: see text][Formula: see text]m2, using the OpenFOAM toolbox, to solve the Reynolds Averaged Navier–Stokes (RANS) equations with the [Formula: see text]–[Formula: see text] turbulence model. The results showed how the obstacles alter the airflow. From them, one can identify the regions with reduced safety and pedestrian comfort, and also the weak wind zone created by the downstream of the constructions for the different wind directions that are locally observed.

Atrium Fire-Proof Design in Ecological Strategy Taking the Library of Shandong Jiaotong University as an Example

2014 ◽  
Vol 1028 ◽  
pp. 292-296
Author(s):  
Jing Yin
Keyword(s):  
Fire Safety ◽  
Natural Ventilation ◽  
Green Building ◽  
Building Construction ◽  
Ecological Strategy ◽  
Ecological Strategies ◽  
Technical Problems ◽  
Natural Lighting ◽  
First Case ◽  
Atrium Fire

In China the development pace of green building is becoming more and more fast. But there are many technical problems during the green building construction. The Library of Shandong Jiaotong University is the first case of green library building in China. The ecological implementation in the atrium is one of the important ecological strategies of the Library. While construction we encountered more technical problems, especially the contradiction between the natural ventilation, natural lighting and fire safety. In this article based on the atrium technology design of the green building and combined the practice of the atrium some strategies realizing natural lighting, natural ventilation in the fire safety, applicable, economy and art.are summarized in detail. It is the aim to give some references and to promote the green building implementation.

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