Review of Thermal Performance: A Terrace House in Melaka, Malaysia

2016 ◽  
Vol 851 ◽  
pp. 791-797
Author(s):  
Fahanim Abdul Rashid ◽  
Norafida Ab Ghaffar ◽  
Asrul Mahjuddin Ressang Aminuddin ◽  
Muhammad Azzam Ismail
Keyword(s):  
Thermal Comfort ◽  
Thermal Performance ◽  
Thermal Condition ◽  
Monitoring Equipment ◽  
Local Climate ◽  
Site Monitoring ◽  
Architectural Features ◽  
Comfort Perception ◽  
Air Speed

A field study of residents’ thermal comfort in a naturally ventilated intermediate single storey terrace house was carried out at Merlimau, Melaka. An intermediate single storey terrace house was chosen as a case study and indoor thermal condition measurements were recorded for three days. The indoor ambient temperature, relative humidity and air speed were measured using on-site monitoring equipment to evaluate the thermal performance of this house. A questionnaire survey was also conducted involving all occupants to determine their thermal comfort perception of the same case study house. The aim of this study is to analyse the indoor thermal condition of an intermediate single storey terrace house in order to propose architectural features to climatically adapt to the local climate. In naturally ventilated condition, results showed that this house is thermally uncomfortable and the indoor thermal condition was between 2.7°C to 5.9°C higher than suggested temperatures stipulated in ASHRAE Standard 55. Consistently, five out of eight occupants or less than 80% of occupants voted the house as thermally acceptable according to ASHRAE Standard 55.

scholarly journals Evaluation of Basement's Thermal Performance Against Thermal Comfort Model at Hot-arid Climates, Case Study (Egypt)

2017 ◽  
Vol 2 (1) ◽  
pp. 24
Author(s):  
Heba Hassan Kamel ◽  
Daisuke Sumiyoshi
Keyword(s):  
Iterative Method ◽  
Thermal Comfort ◽  
Thermal Performance ◽  
High Energy ◽  
Mean Bias Error ◽  
Comfort Levels ◽  
Diurnal Range ◽  
Energy Plus ◽  
Thermal Comfort Model

Reaching thermal comfort levels in hot-arid climates is becoming more difficult nowadays without the use of high energy consuming mechanical systems. Therefore, the need to use effective passive energy design techniques such as earth-sheltered buildings is becoming greater. This paper combines researches that uses monitoring and simulations in order to evaluate basements’ thermal performance that reached thermal comfort levels without active air-conditioning systems, despite the harsh climate conditions. The case study was conducted in Al-Minya city, Egypt, which is known for its high diurnal range. The study calibrated a non-conditioned basement simulation model versus the monitored data to simulate its thermal performance. The greatest challenge was to calculate the ground temperature. To do this successfully, we used an iterative approach between packages of the basement preprocessor and Energy Plus / Design Builder until reaching a convergence. The iterative method results showed significant agreement between the measured and modeled data; with a correlation of 98 percent and errors with mean bias error and normalized root mean square error of -1.0 and 7.6 percent; respectively. On the other hand, the Energy Plus method, integrating the Xing approach, showed significantly divergent results between the simulated models versus the measured data. The calibrated model analysis evaluation, using the Fanger’s thermal comfort model, showed satisfactory results within the thermal comfort sensation range. The research results significance indicates that the precise customized detailed iterative method is essential to create the needed inputs which subsequently lead to near-to-actual outputs compared with other ground-contact simulation methods. In fact, the precise customized detailed iterative method approach may be used as a benchmark for simulators for easy and precise ground temperatures’ calculations and earth-sheltered buildings’ simulations.

scholarly journals DESIGNING PUBLIC SQUARES TO OPTIMIZE HUMAN OUTDOOR THERMAL COMFORT: A CASE STUDY IN SAFRANBOLU

2021 ◽  
pp. 13-20
Author(s):  
Ömer ÖZEREN ◽  
Merve TUNA KAYILI
Keyword(s):  
Thermal Comfort ◽  
Outdoor Thermal Comfort ◽  
Type Number ◽  
Green Areas ◽  
Comfort Perception ◽  
Design Proposal ◽  
Flooring Materials ◽  
Tree Type

Within the scope of the study, thermal comfort analysis was performed using the ENVI-met program of the Misak-ı Milli Square in Safranbolu, and it was determined that the thermal comfort perception of the square as slighty warm-warm. For this reason, a new design proposal has been submitted for the square. In the proposal, the green ratio and the number of trees was increased, the type and location of the trees was changed. The flooring materials was replaced with a stone covering with a higher albedo and new functional suggestions were made for the square. As a result of the thermal comfort analysis of the new proposal, the thermal comfort perception in the square was neutral and the thermal dissatisfaction rate was reduced below 14.5%. In result of the study, it was underlined that the ratio of green areas and the tree type, number and location that constitute it and the choice of flooring materials are important parameters in providing the thermal comfort of the square.

scholarly journals ASSESSMENT OF TRADITIONAL ARCHITECTURE OF LUCKNOW WITH REFERENCE TO CLIMATIC RESPONSIVENESS

2021 ◽  
Vol 6 (1) ◽  
pp. 19-31
Author(s):  
Mohammad Arif Kamal ◽  
Keyword(s):  
Thermal Comfort ◽  
Thermal Performance ◽  
Building Materials ◽  
Dwelling Unit ◽  
Traditional Architecture ◽  
Climatic Extremes ◽  
The Past ◽  
Built Form ◽  
Site Monitoring ◽  
Passive Techniques

Introduction: Traditional architecture, all over the world, has many characteristics that ensure thermal comfort. In the past, people built their houses in harmony with the environment, while also optimally utilizing the building materials available locally. The traditional built form was climate-responsive; it evolved over centuries of experience and observations of climate and nature. The traditional local architecture of Lucknow (a North Indian historical city) has employed some ingenious natural and passive techniques to maintain thermal comfort within the building, particularly during the hottest hours of the day. In this paper, we discuss the traditional built form of Lucknow through the lens of its climatic appropriateness, especially during the hottest hours of the day. Methods: The research methodology involves the study of the thermal performance of two traditional houses and one modern dwelling unit in Lucknow during the climatic extremes, i.e. summer and winter, by means of on-site monitoring of temperature and relative humidity. Results and discussion: We have summarized the comparative analysis of the thermal performance of traditional houses and modern houses and drawn conclusions from the factors that are responsible for providing thermal comfort. The analysis shows that the use of natural and passive techniques in the traditional buildings of Lucknow is very effective in terms of providing a thermally comfortable space, warm in the winter and cool in the summer.

scholarly journals Evaluation of Thermal Comfort Performance of a Vertical Garden on a Glazed Façade and its Effect on Building and Urban Scale, Case Study: An Office Building in Barcelona

2021 ◽  
Vol 13 (12) ◽  
pp. 6706
Author(s):  
Faezeh Bagheri Moghaddam ◽  
Josep Maria Fort Mir ◽  
Isidro Navarro Delgado ◽  
Ernesto Redondo Dominguez
Keyword(s):  
Thermal Comfort ◽  
Thermal Performance ◽  
Indoor Air ◽  
Mediterranean Climate ◽  
Office Building ◽  
Glazed Facade ◽  
The Mediterranean ◽  
Indoor Comfort ◽  
Vegetation Layer

The aim of this paper is to investigate the thermal performance of vertical gardens by comparing the thermal comfort of bare (glazed) and green façades in the Mediterranean climate. The proposal consists of applying a vegetation layer on a glazed façade that could control solar radiation and reduce indoor air temperatures. This study investigates the thermal performance of green façades of an office building in the Mediterranean climate. For this purpose, the Gas Natural Fenosa Office Building as a case study was simulated, that is located on a site next to the coastline in Barcelona. Dynamic building energy simulation was used to determine and assess indoor thermal conditions and, for this reason, the IES VE as a simulation tool has been utilized. Thermal comfort was assessed through the adaptive comfort approach and results were analyzed and presented in the terms of indoor comfort conditions during occupied hours. As a result, the article shows that applying a green façade as a vegetation layer caused a reduction in the internal and external façade surface temperatures, as well as the indoor air temperature of the workplace. Additionally, enhancing indoor comfort in summer is closely associated with reducing the external surface temperature. In winter, it also protects the exterior surface from the low temperature of the outside, and all of this greatly increases thermal comfort performance.

Thermal performance assessment of vernacular residential semi-open spaces in Mediterranean climate

2017 ◽  
Vol 27 (8) ◽  
pp. 1050-1068 ◽  
Author(s):  
Maria Philokyprou ◽  
Aimilios Michael ◽  
Stavroula Thravalou ◽  
Ioannis Ioannou
Keyword(s):  
Thermal Comfort ◽  
Thermal Performance ◽  
Field Measurements ◽  
Building Envelope ◽  
Positive Contribution ◽  
Open Spaces ◽  
Cooling Period ◽  
Architectural Features ◽  
Vernacular Buildings ◽  
The Impact

This paper investigates the overall thermal performance of vernacular buildings in Nicosia, Cyprus and highlights the role of semi-open spaces in improving the thermal comfort of the aforementioned structures. The novelty of the study lies in the fact that it presents, in a comparative way, field measurements carried out in five traditional buildings, discussing at the same time the impact of authentic architectural features, as well as of contemporary interventions, on the bioclimatic function of the original building envelope, taking into account the daily use of the premises under investigation. The research outcomes highlight the positive contribution of semi-open spaces to the thermal comfort of vernacular buildings, especially during the cooling period (summer). Contemporary architectural interventions, such as the conversion of semi-open spaces into closed indoor spaces, as well as the behaviour of occupants, are also found to affect the thermal performance of the traditional building envelope.

scholarly journals How parks provide thermal comfort perception in the metropolitan cores; a case study in Madrid Mediterranean climatic zone

2020 ◽  
Vol 30 ◽  
pp. 100245 ◽  
Author(s):  
Farshid Aram ◽  
Ebrahim Solgi ◽  
Sepideh Baghaee ◽  
Ester Higueras García ◽  
Amir Mosavi ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Climatic Zone ◽  
Comfort Perception

scholarly journals Evaluation of Basement's Thermal Performance Against Thermal Comfort Model at Hot-arid Climates, Case Study (Egypt)

2017 ◽  
Vol 2 (1) ◽  
pp. 24
Author(s):  
Heba Hassan Kamel ◽  
Daisuke Sumiyoshi
Keyword(s):  
Iterative Method ◽  
Thermal Comfort ◽  
Thermal Performance ◽  
High Energy ◽  
Mean Bias Error ◽  
Bias Error ◽  
Comfort Levels ◽  
Diurnal Range ◽  
Thermal Comfort Model

Reaching thermal comfort levels in hot-arid climates is becoming more difficult nowadays without the use of high energy consuming mechanical systems. Therefore, the need to use effective passive energy design techniques, such as earth-sheltered buildings, is becoming greater.This paper describes research, that uses monitoring and simulations, to evaluate basements’ thermal performance, which reached thermal comfort levels without active air-conditioning systems, despite the harsh climate conditions. The case study was conducted in Al Minya city, Egypt, which is known for its high diurnal range. The study calibrated a non-conditioned basement simulation model versus the monitored data to simulate its thermal performance. The greatest challenge was to calculate the ground temperature. To do this successfully, we used an iterative approach between packages of the Basement preprocessor and EnergyPlus/Designbuilder until reaching a convergence.The iterative method results showed significant agreement, between the measured and modeled data, with a correlation of 98 percent, and errors with mean bias error and normalized root mean square error of -1.0 and 7.6 percent, respectively. On the other hand, the EnergyPlus method, integrating the Xing approach, showed significantly divergent results between the simulated models versus the measured data. The calibrated model analysis evaluation, using the Fanger’s thermal comfort model, showed satisfactory results within the thermal comfort sensation range.The research results significance indicates that the precise customized detailed iterative method is essential to create the needed inputs which subsequently lead to near-to-actual outputs compared with other ground-contact simulation methods. In fact, the precise customized detailed iterative method approach may be used as a benchmark for simulators for easy and precise ground temperatures’ calculations and earth-sheltered buildings’ simulations.

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