Instrumentation and Simulation of the Hygro-Thermal Conditions of a Green Building: A Study of the Impact of the Post-Occupancy Usages on Thermal Comfort

2010 ◽  
Author(s):  
Franck Lucas ◽  
Jean Perouzel ◽  
Frantz Sinama ◽  
Franc¸ois Garde
Keyword(s):  
Thermal Comfort ◽  
Natural Ventilation ◽  
Green Building ◽  
Thermal Conditions ◽  
Field Measurements ◽  
Building Design ◽  
Second Step ◽  
Indoor Temperature ◽  
The Impact ◽  
Block Approach

Post-occupancy evaluations (POEs) are useful for evaluating the success of any building design, but are particularly useful in evaluating green buildings. It is the only opportunity architects and engineers have to learn if their buildings actually work as planned. On the other hand, following the “guidebook” of a green building, i.e. having occupants aware of the particularity of the premise and taught about how it works and what the proper usages are (which are not automatically straightforward), is of prime importance since misuse of a green building can directly lead to discomfort and energy over consumption. In that framework, this paper stresses the link between occupants’ usages and their indoor thermal comfort by attempting a quantification of the impact of each usage on indoor temperature and hygrometry (and thus thermal comfort), showing by the way that, in order a POE to fully give exploitable results, a communication to occupants on proper usages has to be the first step after the delivery of a green building. To study that link, the real case of a green building located in the French tropical island of La Re´union has been used. The overall idea followed in this work lies in two steps: The first one is the creation of a “validated” digital building description obtained thanks to a process of comparison between simulations outputs (DesignBuilder) and field measurements (weather and comfort stations), and to a “block by block” approach that allows independent validations of the description of the fabrics and of the description of the usages. The second step is the utilization of the model obtained in the first step to perform simulations of new usages, as modifications in natural ventilation features (doors, windows open or closed) or in number of occupants, lighting schedule etc. These new simulations lead to the possibilities of comparing situations between each others, and therefore of quantifying the contribution, positive or negative, of each chosen usage to thermal comfort. Eventually, this paper will describe an example of combination of new usages that makes the conditions noticeably more comfortable within the building, stressing that following the good usages in a green building is a first requirement before realizing any POE.

A Review of the Impact of Vegetation in Solar Control towards Enhanced Thermal Comfort and Energy Performance in Buildings

2019 ◽  
Vol 887 ◽  
pp. 428-434
Author(s):  
Dorcas A. Ayeni ◽  
Olaniyi O. Aluko ◽  
Morisade O. Adegbie
Keyword(s):  
Thermal Comfort ◽  
Adaptive Capacity ◽  
Thermal Environment ◽  
Thermal Conditions ◽  
Building Design ◽  
Energy Performance ◽  
Tropical Region ◽  
Indoor Climate ◽  
Solar Control ◽  
The Impact

Man requires a thermal environment that is within the range of his adaptive capacity and if this fluctuates outside the normal, a reaction is required beyond its adaptive capacity which results to health challenges. Therefore, the aim of building design in the tropical region is to minimize the heat gain indoors and enhance evaporative cooling of the occupants of the space so as to achieve thermal comfort. In most cases, the passive technologies are not adequate in moderating indoor climate for human comfort thereby relying on active energy technique to provide the needed comfort for the building users. The need for the use of vegetation as a panacea for achieving comfortable indoor thermal conditions in housing is recognised by architects globally. However, the practice by architects in Nigeria is still at the lower ebb. The thrust of this paper therefore is to examine the impact of vegetation in solar control reducing thermal discomfort in housing thereby enhancing the energy performance of the buildings. Using secondary data, the paper identifies the benefits of vegetation in and around buildings to include improvement of indoor air quality through the aesthetics quality of the environment and concludes that vegetation in and around building will in no small measure contributes to saving energy consumption.

scholarly journals KONDISI TERMAL PADA PENGHAWAAN ALAMI DI RUANG TUNGGU UTAMA STASIUN SEMARANG TAWANG

2018 ◽  
Vol 2 (3) ◽  
pp. 144
Author(s):  
Hana Faza Surya Rusyda ◽  
Erni Setyowati ◽  
Gagoek Hardiman
Keyword(s):  
Thermal Comfort ◽  
Air Temperature ◽  
Research Method ◽  
Thermal Condition ◽  
Natural Ventilation ◽  
Thermal Conditions ◽  
Field Measurements ◽  
Waiting Room ◽  
Train Station ◽  
State Of Mind

Abstract:. Thermal comfort is a state of mind that expresses a user's satisfaction with thermal conditions. This study focuses on the design of natural ventilation which is one of the efforts to reduce the heat that exists in the building, especially in maintaining the thermal conditions. Tawang Train Station, Semarang has a natural ventilation design that is still maintained especially in the waiting room. This study aims to determine the thermal conditions of the design of ventilation using the theory of Mom and Wiseborn, SNI 03-6572-2001, and Olgyay chart. This research method uses quantitative and field measurements were done for 14 hours to know the movement of air, temperature, humidity. The results were then compared with the standard and the theory. It was found that thermal comfort conditions that still utilize the movement of the wind from natural ventilation in the main waiting room of Tawang Semarang Station.Keyword: Thermal Condition, Natural Ventilation, Semarang Tawang Station.Abstrak: Kenyamanan termal merupakan suatu kondisi pikir seseorang yang mengekspresikan kepuasan pengguna terhadap kondisi termal.  Penelitian ini berfokus pada desain penghawaan yang merupakan salah satu upaya mengurangi panas yang ada dalam bangunan terutama dalam menjaga kondisi termal. Stasiun Tawang Semarang, mempunyai desain penghawaan alami yang masih dipertahannkan terutama pada ruang tungguya. Penelitian ini  bertujuan untuk mengetahui kondisi termal dari desain penghawaan dengan menggunakan teori mom dan wiseborn, SNI 03-6572-2001, serta grafik olgyay. Metode penelitian ini menggunakan kuantitatif dan pengukuran dilapangan dilakukan selama 14 jam untuk mengetahui pergerakan udara, temperature, kelembaban. Hasil penelitian kemudian di bandingkan dengan standar SNI, Mom & Wiseborn dan Diagram Olgyay. Ditemukan bahwa kondisi kenyamanan termal yang masih memanfaatkan pergerakan angin dari ventilasi alami pada ruang tunggu utama Stasiun Semarang Tawang.Kata Kunci: Kondisi Termal, Ventilasi Alami, Ruang tunggu, Stasiun Semarang Tawang

scholarly journals Can Underground Buildings Be Beneficial in Hot Regions? An Investigation of Field Measurements in On-Site Built Underground Construction

Buildings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 341
Author(s):  
Mamdooh Alwetaishi ◽  
Omrane Benjeddou ◽  
Ashraf Balabel ◽  
Ali Alzaed
Keyword(s):  
Natural Ventilation ◽  
Negative Impact ◽  
Field Measurements ◽  
Energy Simulation ◽  
Shopping Malls ◽  
Underground Construction ◽  
Indoor Temperature ◽  
Building Heat ◽  
The Impact ◽  
Underground Constructions

Globally, there has been a remarkable growth in the number of underground constructions (UGC) such as railways, offices, hospitals and shopping malls. This expansion is a result of urban area extensions that are limited by the availability of buildable land. Underground construction can also be used to protect people from the harshness of the outdoor conditions. The aim of this research is to investigate the impact of underground construction in hot regions. The major issue with most of the current UGC is the lack of natural ventilation and daylight. This has a clear negative impact on the user’s perception and comfort. The new design elevates the external walls to place some of the windows above ground for the purpose of natural ventilation and providing a view. The study conducted an experiment using an underground room enhanced with field measurements to ascertain the indoor temperature as well as relative humidity. In addition, the study used an energy simulation to calculate building heat transfer and solar heat gain. It was revealed that the use of UGC in hot regions promoted with the addition of natural ventilation can lower the indoor temperature by 3 °C in summer.

scholarly journals PENGARUH BUKAAN TERHADAP PENCAHAYAAN ALAMI DAN PENGHAWAAN ALAMI PADA MASJID AL AHDHAR BEKASI

2020 ◽  
Vol 3 (1) ◽  
pp. 20-33
Author(s):  
Christy Vidiyanti ◽  
Rodi Siswanto ◽  
Febriansyah Ramadhan
Keyword(s):  
Solar Radiation ◽  
Thermal Comfort ◽  
Air Conditioning ◽  
Natural Ventilation ◽  
Thermal Conditions ◽  
Field Measurements ◽  
Natural Lighting ◽  
Lighting Conditions ◽  
Large Opening ◽  
The Relationship

Abstract: The building should be able to provide a comfortable space for users to avoid outside unfavorable climate, so that the activities in it can run optimally. The comfort aspect is one of the important factors in special worship in it. Al-Ahdhar Mosque is a mosque designed by architect Nataneka. This mosque has large openings so that natural lighting and natural ventilation can enter the building. However, it needs to be investigated whether this large opening is enough to influence the lighting conditions and conditions of the Al-Ahdhar mosque. This research was also conducted to find out the relationship between natural lighting and natural ventilation produced and to find out the opinions of respondents to the thermal comfort of the Al-Ahdhar mosque. The method used in this study is field measurements and observations which are then processed quantitatively. The results showed that natural lighting at Al-Ahdhar mosque was 180 lux on the 1st and 128th floors of lux on the 2nd floor, which meant that natural lighting in this mosque still did not meet the standards of 200 lux. Thermal conditions at Al-Ahdhar mosque, the lowest temperature of 240C is found in areas that have openings of 34%. While 80% openings produce temperatures that tend to be higher at 29.20C to 29.60C. Larger openings do not necessarily produce good natural lighting and air conditioning conditions. But keep in mind the location of openings, orientation of openings, and types of openings. The bigger the openings will also include large solar radiation as well.Keywords: natural lighting; natural ventilation; thermal conditions; mosqueAbstrak: Bangunan sebaiknya dapat memberi ruang beraktivitas yang nyaman kepada pengguna agar terhindar dari iklim luar yang tidak menguntungkan, sehingga aktivitas di dalamnya dapat berjalan dengan optimal. Aspek kenyamanan merupakan salah satu faktor penting dalam kekhusukan beribadah di dalamnya. Masjid Al-Ahdhar merupakan masjid yang didesain oleh arsitek Nataneka. Masjid ini memiliki bukaan yang cukup besar sehingga pencahayaan alami dan penghawaan alami dapat masuk ke dalam bangunan. Namun, perlu diteliti apakah bukaan yang besar ini cukup berpengaruh terhadap kondisi pencahayaan dan kondisi penghawaan pada masjid Al-Ahdhar. Penelitian ini juga dilakukan untuk mengetahui hubungan antara pencahayaan alami dan penghawaan alami yang dihasilkan serta mengetahui pendapat responden terhadap kenyamanan termal masjid Al-Ahdhar. Metode yang dilakukan dalam penelitian ini adalah pengukuran lapangan dan observasi yang kemudian diolah secara kuantitatif. Hasil penelitian menunjukkan bahwa pencahayaan alami pada masjid Al-Ahdhar adalah sebesar 180 lux pada lantai 1 dan 128 lux pada lantai 2 yang berarti pencahayaan alami pada masjid ini masih belum memenuhi standar yaitu sebesar 200 lux. Kondisi thermal pada masjid Al-Ahdhar, suhu terendah yaitu sebesar 240C didapatkan pada area yang memiliki bukaan 34%. Sedangkan bukaan 80% menghasilkan suhu udara yang cenderung lebih tinggi yaitu sebesar 29,20C sampai 29,60C. Bukaan yang semakin besar belum tentu menghasilkan kondisi pencahayaan alami dan penghawaan alami yang baik. Namun perlu diperhatikan letak bukaan, orientasi bukaan, dan jenis bukaan. Semakin besar bukaan juga akan memasukkan radiasi matahari yang besar pula.Kata Kunci: pencahayaan alami; penghawaan alami; kondisi termal; masjid

scholarly journals Improving thermal comfort conditions in K-12 educational buildings in hot and humid climate: a case study in Cucuta, Colombia

2021 ◽  
Vol 2069 (1) ◽  
pp. 012171
Author(s):  
D Guerrero ◽  
H Ge ◽  
B Lee
Keyword(s):  
Thermal Comfort ◽  
Natural Ventilation ◽  
Thermal Conditions ◽  
Building Design ◽  
Mitigation Strategies ◽  
Mitigation Measures ◽  
Design Strategies ◽  
National Guidelines ◽  
Humid Climate ◽  
K 12

Abstract The school buildings in Colombia are built based on geographical locations and regional construction systems. However, external weather conditions and building design can have a significant impact on the thermal comfort of students, which affects the academic performance and productivity. This paper investigates the thermal comfort performance for an educational building in a hot and humid city in Cucuta, Colombia, built under national guidelines. This school is a concrete structure without mechanical cooling. However, field observation discovered that 82% of the time students experienced thermal discomfort. To investigate causes and provide mitigation strategies, a whole building energy simulation is conducted. Design Builder is used to evaluate the indoor thermal conditions compared to outdoor data collected. ASHRAE 55 adaptative model is used for the evaluation. It is found that 79% of the time the thermal conditions are outside the acceptable range during the year. The effect of mitigation measures i.e., occupancy, roof insulation, and natural ventilation rates are investigated through simulations. It is found that occupancy and natural ventilation rate have a significant impact on the indoor temperature and relative humidity, and thus the thermal comfort. Passive design strategies are proposed in optimizing the school building design to meet ASHARE-55 requirements.

GREEN BUILDING AND BIODIVERSITY: FACILITATING BIRD FRIENDLY DESIGN WITH BUILDING INFORMATION MODELS

2016 ◽  
Vol 11 (2) ◽  
pp. 116-130 ◽  
Author(s):  
Karen Kensek ◽  
Ye Ding ◽  
Travis Longcore
Keyword(s):  
Building Materials ◽  
Green Building ◽  
Building Design ◽  
Visual Programming ◽  
Information Modeling ◽  
Indoor Environmental Quality ◽  
Information Models ◽  
Building Information ◽  
The Impact ◽  
Bird Collisions

Green buildings should respect nature and endeavor to mitigate harmful effects to the environment and occupants. This is often interpreted as creating sustainable sites, consuming less energy and water, reusing materials, and providing excellent indoor environmental quality. Environmentally friendly buildings should also consider literally the impact that they have on birds, millions of them. A major factor in bird collisions with buildings is the choice of building materials. These choices are usually made by the architect who may not be aware of the issue or may be looking for guidance from certification programs such as LEED. As a proof of concept for an educational tool, we developed a software-assisted approach to characterize whether a proposed building design would earn a point for the LEED Pilot Credit 55: Avoiding Bird Collisions. Using the visual programming language Dynamo with the common building information modeling software Revit, we automated the assessment of designs. The approach depends on parameters that incorporate assessments of bird threat for façade materials, analyzes building geometry relative to materials, and processes user input on building operation to produce the assessment.

scholarly journals GREEN ARCHITECTURE PARADIGM: FROM URBAN UTOPIA TO MODERN METHODS OF QUALITY ASSESSMENT / ŽALIOSIOS ARCHITEKTŪROS PARADIGMA: NUO URBANISTIINĖS UTOPIJOS IKI ŠIUOLAIKINIŲ TVARUMO VERTINIMO METODIKŲ

2013 ◽  
Vol 5 (3) ◽  
pp. 181-188 ◽  
Author(s):  
Gintaras Stauskis
Keyword(s):  
Quality Assessment ◽  
Green Building ◽  
Building Design ◽  
Assessment Methods ◽  
Theory And Practice ◽  
Modern World ◽  
Green Architecture ◽  
Basic Features ◽  
Main Ideas ◽  
The Impact

Trends of environmental, social and economic development in the modern world are driving forward the theory and practice of Green Building with important role for architecture and architects. The article presents a comprehensive analysis of the Green Building doctrine and its historic background based on a review of main ideas of Green Architecture including its historic roots, as well as modern theories and practices of contemporary system of sustainability. Complex quality assessment methodologies developed in different regions of the world to evaluate environmental, social, economic and creative features of new and renovated buildings and urban complexes are analyzed in order to identify the most effective and advanced tools and methods. The importance of sustainability aspects is presented by a comparative analysis of basic features of building’s quality assessment methods originated in different countries and regions, as it reveals the structure and weight impact of different evaluation methods. The article also addresses the impact of Green Architecture theories and assessment methods on architectural practice by analyzing outstanding case studies in urban design, landscape architecture and volumetric building design. Santrauka Straipsnyje nagrinėjama žaliosios architektūros paradigmos raida skirtingais miestų filosofijos ir architektūros teorijos laikotarpiais, pateikiama daug nuoseklios idėjos raidos pavyzdžių nuo 19 a. pabaigos iki 20 a. vidurio. Materialiosios aplinkos, miestų ir pastatų tvarumas vertinamas pagal nustatytus kriterijus, naudojamus skirtinguose pasaulio regionuose nuo 20 a. pabaigos. Pateikiama skirtingų tvarumo nustatymo ir vertinimo aspektų analizė išryškina dominuojančius aspektus, taip pat parodo skirtingų tvarumo nustatymo metodų būdingus bruožus. Tyrimo išvadose nurodomi žaliosios architektūros platesnio įdiegimo Lietuvoje būdai: specialistų mokymas ir profesionalių architektų profesinis tobulėjimas, skirtingose statybos proceso grandyse dirbančių specialistų pajėgų konsolidavimas, įstatymų ir reglamentų bazės tobulinimas, numatant ekonomines ir kitas paskatas žaliosios architektūros principus taikantiems vystytojams. Straispsnis anglų kalba.

Energy Conservation and Green Building Design of Library Case Study on the New Hubei Library

2013 ◽  
Vol 438-439 ◽  
pp. 1746-1750
Author(s):  
Yan Li
Keyword(s):  
Energy Saving ◽  
Natural Ventilation ◽  
Green Building ◽  
Building Design ◽  
Developed Countries ◽  
Building Structure ◽  
Green Building Design ◽  
Cultural Service ◽  
Conditioning Control

As the major public buildings and cultural service institutions, libraries play an important role in the strategy of energy-saving buildings. In order to keep pace with the footstep of Western developed countries, China has launched a series of green and energy-saving building practices and achieved certain results. The New Hubei Library is a successful example, with Chinese national conditions and the characteristic of the library itself taken into consideration, and limited conditions in the design process fully made the most use of. Besides the designer has efficiently used energy-saving strategy on building structure maintenance, solar radiation, air conditioning control system and natural ventilation, finally achieved the goal of energy saving of library.

scholarly journals The Impact of Local Materials on the Improvement of the Thermal Comfort in Building

2020 ◽  
pp. 22-35
Author(s):  
Amadou Oumarou Fati ◽  
Bonkaney Abdou Latif ◽  
Ouedraogo Souleymane ◽  
S. M. Ky. Thierry ◽  
Mamadou Lewamy ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Energy Demand ◽  
Building Materials ◽  
Building Design ◽  
Temporal Variations ◽  
Raw Material ◽  
High Rise ◽  
Energy Demands ◽  
The Impact ◽  
Local Materials

The increasing energy demands in the building sector is considered as a main issue and has result both in the energy shortage and also environmental impact such as climate change and global warming. This demand is always increasing due to the high-rise level and also the need of thermal comfort. This paper aims to describe a passive approach to reduce the energy demand for a building through an improvement of the design of the thermal envelope. Within this work, we utilized the thermophysical properties of four building materials: three local materials (compressed earth, lateritic, and raw material) and one modern (Hollow cement) and an energy analysis of the building has been carried out. The numerical optimization of the building design has been performed dynamically by COMSOL Multiphysics software: case study of Ouagadougou and surface is 100m2. Also, the temporal variations in the inside of the room as well as the temperature of the walls and the ceiling with four different materials have been determined. The result shows that, for BLT, the maximum obtained around 22H is 308K, for Adobe it is 309K around 18H30, for BTC it was 309.2K at 20H and finally for cement block it is 310K around 18H. The mean average temperature of the building is low when we use local materials instead of modern one. Then, we conclude that, the use of local materials in the building design is an option for reducing the heat transfer into the room and at the energy consumption.

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