Preliminary evaluation of indoor thermal comfort in Malaysia heritage mosque

Malaysia heritage buildings are the country's architectural gems. Among them is the religious building such as mosque. The Malaysia heritage mosque is normally built in response to the local culture and environment. Unlike most of Malaysia modern mosques where air conditioning is opted as ventilation mode, the heritage mosques achieve indoor thermal comfort via the passive architectural design. Due to that, this study was executed with the purpose of investigating the indoor thermal comfort of a Malaysia heritage mosque located at traditional street in Melaka, namely Masjid Tanah. The methodology used in the study was field measurement, in which the parameters measured were the indoor and outdoor air temperatures. The field measurement was conducted for two days in the end of March and early of April 2018, from 9 am to 4 pm. The indoor predicted comfort temperature was derived using the adaptive model. The findings indicated that the measured indoor air temperatures were lower than the indoor predicted comfort temperatures at most of the time. Therefore, it shows that the passive architectural design adopted by the Malaysia heritage mosque, which is Masjid Tanah, is able to provide indoor thermal comfort to the users.

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Energy-saving potential of intermittent heating system: Influence of composite phase change wall and optimization strategy

Energy Exploration & Exploitation ◽

10.1177/0144598720969217 ◽

2020 ◽

pp. 014459872096921

Author(s):

Yanru Li ◽

Enshen Long ◽

Lili Zhang ◽

Xiangyu Dong ◽

Suo Wang

Keyword(s):

Energy Consumption ◽

Thermal Comfort ◽

Phase Change ◽

Air Temperature ◽

Indoor Air ◽

Thermal Environment ◽

Optimization Strategy ◽

Indoor Thermal Environment ◽

Indoor Thermal Comfort ◽

Intermittent Heating

In the Yangtze River zone of China, the heating operation in buildings is mainly part-time and part-space, which could affect the indoor thermal comfort while making the thermal process of building envelope different. This paper proposed to integrate phase change material (PCM) to building walls to increase the indoor thermal comfort and attenuate the temperature fluctuations during intermittent heating. The aim of this study is to investigate the influence of this kind of composite phase change wall (composite-PCW) on the indoor thermal environment and energy consumption of intermittent heating, and further develop an optimization strategy of intermittent heating operation by using EnergyPlus simulation. Results show that the indoor air temperature of the building with the composite-PCW was 2–3°C higher than the building with the reference wall (normal foamed concrete wall) during the heating-off process. Moreover, the indoor air temperature was higher than 18°C and the mean radiation temperature was above 20°C in the first 1 h after stopping heating. Under the optimized operation condition of turning off the heating device 1 h in advance, the heat release process of the composite-PCW to the indoor environment could maintain the indoor thermal environment within the comfortable range effectively. The composite-PCW could decrease 4.74% of the yearly heating energy consumption compared with the reference wall. The optimization described can provide useful information and guidance for the energy saving of intermittently heated buildings.

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Microclimate Analysis as a Design Driver of Architecture

Climate ◽

10.3390/cli8060072 ◽

2020 ◽

Vol 8 (6) ◽

pp. 72 ◽

Cited By ~ 1

Author(s):

Jonathan Graham ◽

Umberto Berardi ◽

Geoffrey Turnbull ◽

Robert McKaye

Keyword(s):

Thermal Comfort ◽

Architectural Design ◽

Global Climate ◽

Outdoor Thermal Comfort ◽

Climate Index ◽

Design Office ◽

Scope Project ◽

Thermal Climate ◽

Design Options ◽

Indoor And Outdoor

In the context of global climate change, it is increasingly important for architects to understand the effects of their interventions on indoor and outdoor thermal comfort. New microclimate analysis tools which are gaining appreciation among architects enable the assessment of different design options in terms of biometeorological parameters, such as the Universal Thermal Climate Index (UTCI) and the Outdoor Thermal Comfort Autonomy. This paper reflects on some recent experiences of an architectural design office attempting to incorporate local climatic considerations as a design driver in projects. The investigation shows that most of the available tools for advanced climatic modelling have been developed for research purposes and are not optimized for architectural and urban design; consequently, they require adaptations and modifications to extend their functionality or to achieve interoperability with software commonly used by architects. For this scope, project-specific Python scripts used to extract design-consequential information from simulation results, as well as to construct meteorological boundary conditions for microclimate simulations, are presented. This study describes the obstacles encountered while implementing microclimate analysis in an architectural office and the measures taken to overcome them. Finally, the benefits of this form of analysis are discussed.

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Indoor and outdoor ambient air temperatures during summer 2019 in Augsburg, Germany

10.5194/egusphere-egu2020-2734 ◽

2020 ◽

Author(s):

Christoph Beck ◽

Marisa Fritsch ◽

Marco Linder ◽

Johanna Völkel ◽

Sabrina Beckmann ◽

...

Keyword(s):

Indoor Air ◽

Heat Waves ◽

Central City ◽

Urban Climate ◽

Ambient Air ◽

Data Set ◽

Local Climate ◽

Air Temperatures ◽

Local Climate Zones ◽

Indoor And Outdoor

The summer of 2019 featured significantly too warm conditions in Germany during all summer months. This included several distinct warm episodes and heat waves, the most pronounced of these appearing around end of July.Within the framework of the interdisciplinary research project Abc (Augsburg bleibt cool &#8211; Augsburg stays cool) &#8211; funded by the German Federal Ministry for Environment, Nature Conservation and Nuclear Safety &#8211; it is intended to detect and quantify urban thermal hot-spots with respect to outdoor and as well indoor air temperatures in the city of Augsburg (Bavaria, SE Germany). The knowledge of such spatiotemporal patterns of thermal and especially heat-stress exposure are an indispensable basis for any further aspired local climate modeling and adaptation studies.To this end, in June 2019 around 500 low-cost thermometers and around 50 thermo-hygrometers have been distributed among residents of the central city parts of Augsburg to record ambient indoor temperatures during summer. As high indoor air temperatures are suspected to be health relevant in particular during night, participants placed the thermometers in their bedrooms.Outdoor temperature and humidity have been recorded simultaneously by an already existing comprehensive urban climate measuring network.In this contribution we present main features of the data set of indoor temperatures and show and discuss first analyses concerning temporal and spatial variability of indoor air temperatures during summer 2019. This includes a comparison of indoor and outdoor temperatures, analyses of the influence of urban structures (e.g. in terms of local climate zones) and as well the influence of building characteristics (e.g. age, building material, ...) on indoor air temperatures.

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Evaluation of urban residential thermal comfort in relation to indoor and outdoor air temperatures in Ibadan, Nigeria

Building and Environment ◽

10.1016/j.buildenv.2014.02.007 ◽

2014 ◽

Vol 75 ◽

pp. 190-205 ◽

Cited By ~ 11

Author(s):

Adewale Oluseyi Adunola

Keyword(s):

Thermal Comfort ◽

Outdoor Air ◽

Air Temperatures ◽

Indoor And Outdoor ◽

Ibadan Nigeria

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Theoretical Study on the Relationship of Building Thermal Insulation with Indoor Thermal Comfort Based on APMV Index and Energy Consumption of Rural Residential Buildings

Applied Sciences ◽

10.3390/app11188565 ◽

2021 ◽

Vol 11 (18) ◽

pp. 8565

Author(s):

Jinzhe Nie ◽

Yuxin Pang ◽

Congcong Wang ◽

Han Zhang ◽

Kuichao Yin

Keyword(s):

Thermal Comfort ◽

Air Temperature ◽

Indoor Air ◽

Residential Buildings ◽

Field Investigation ◽

Energy And Environment ◽

Indoor Thermal Comfort ◽

Adaptive Thermal Comfort ◽

Insulation Thickness ◽

The Relationship

In the field investigation of rural dwellings, it was found that thermal feelings are significantly different with varied envelopes even under the same indoor air temperature, and this paper explores the phenomenon in simulation. Based on building thermal investigations in several villages of North China, a typical energy and environment simulation model for rural residences was developed using DeST, and the hourly parameters of temperature and humidity were used to calculate the adaptive thermal comfort (APMV) of the rooms. The results show that the main reason for the different thermal comfort at the same air temperature is the large difference in the inner surface temperature. By adjusting the insulation thickness of the envelope structure, the relationship between it and the APMV value is obtained. By adjusting the insulation thickness of the enclosure structure and getting the correlation between it and the APMV value, it is obtained that when the heat transfer coefficient of the enclosure structure meets 0.5 W/ (m2−K), the indoors can be in thermal comfort. This paper considers that the indoor air temperature cannot represent the APMV to evaluate the indoor thermal comfort, and the APMV value should be used to evaluate the thermal comfort of the renovated building and calculate the corresponding energy saving rate.

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Analysis of Thermal Comfort and Air Quality in the Kindergarten Hart - A Case Study of a Unique Sustainable Building Design

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.887.500 ◽

2019 ◽

Vol 887 ◽

pp. 500-507

Author(s):

Matthias Schuss ◽

Mahnameh Taheri ◽

Ulrich Pont ◽

Ardeshir Mahdavi

Keyword(s):

Air Quality ◽

Thermal Comfort ◽

Indoor Air Quality ◽

Indoor Air ◽

Environmental Conditions ◽

Natural Ventilation ◽

Building Design ◽

Present Contribution ◽

Ongoing Research ◽

Indoor And Outdoor

The present contribution, reports on the results of ongoing research efforts on performance assessment of a number of buildings designed by the Austrian architect, Konrad Frey. He is a pioneer of energy-efficient architecture, and his designs, those dating back to the 1970s, adapted the principles of modern solar houses. The current study focuses on the Kindergarten Hart, which was especially designed focusing on the availability of cross ventilation option in building. For the purpose of analyzing thermal comfort, indoor air quality, and the occupants’ adaptive actions with respect to natural ventilation, we conducted long-term monitoring under summer and winter conditions. The monitoring efforts covered indoor and outdoor environmental conditions, as well as the state of windows. Thereby, study of the monitored dataset provides a better understanding of the building performance. Moreover, it makes it possible to examine whether the architect’s expectations in terms of thermal comfort and indoor air quality levels are fulfilled or not. In addition, investigation of the occupants’ interactions with windows, together with indoor and outdoor environmental conditions, assists understanding of possible associations between the window opening/closing and environmental parameters, as well as potential optimization of the control-oriented actions.

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Model Predictive Control with Adaptive Building Model for Heating Using the Hybrid Air-Conditioning System in a Railway Station

Energies ◽

10.3390/en14071996 ◽

2021 ◽

Vol 14 (7) ◽

pp. 1996

Author(s):

Ruixin Lv ◽

Zhongyuan Yuan ◽

Bo Lei ◽

Jiacheng Zheng ◽

Xiujing Luo

Keyword(s):

Energy Consumption ◽

Model Predictive Control ◽

Thermal Comfort ◽

Predictive Control ◽

Pid Control ◽

Air Conditioning ◽

Adaptive Model ◽

Air Conditioning System ◽

Building Model ◽

Indoor Thermal Comfort

A model predictive control (MPC) system with an adaptive building model based on thermal-electrical analogy for the hybrid air conditioning system using the radiant floor and all-air system for heating is proposed in this paper to solve the heating supply control difficulties of the railway station on Tibetan Plateau. The MPC controller applies an off-line method of updating the building model to improve the accuracy of predicting indoor conditions. The control performance of the adaptive MPC is compared with the proportional-integral-derivative (PID) control, as well as an MPC without adaptive model through simulation constructed based on a TRNSYS-MATLAB co-simulation testbed. The results show that the implementation of the adaptive MPC can improve indoor thermal comfort and reduce 22.2% energy consumption compared to the PID control. Compared to the MPC without adaptive model, the adaptive MPC achieves fewer violations of constraints and reduces energy consumption by 11.5% through periodic model updating. This study focuses on the design of a control system to maintain indoor thermal comfort and improve system efficiency. The proposed method could also be applied in other public buildings.

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Studying Energy Performance and Thermal Comfort Conditions in Heritage Buildings: A Case Study of Murabba Palace

Sustainability ◽

10.3390/su132112250 ◽

2021 ◽

Vol 13 (21) ◽

pp. 12250

Author(s):

Abobakr Al-Sakkaf ◽

Eslam Mohammed Abdelkader ◽

Sherif Mahmoud ◽

Ashutosh Bagchi

Keyword(s):

Thermal Comfort ◽

Thermal Insulation ◽

Architectural Design ◽

Energy Performance ◽

Air Gap ◽

Added Value ◽

Passive Design ◽

Heritage Buildings ◽

Double Wall

Heritage buildings are significant historical and architecture added value, which requires deep and precise preliminary brainstorming when considering upgrading or retrofitting these valuable buildings. In this study, we opted to highlight some passive design architecture interventions to improve the thermal comfort and the required cooling energy for buildings. The Murabba Palace in Riyadh was selected as a case study. DesignBuilder software was used to evaluate the energy performance of ten passive architectural design alternatives throughout different seasons in an attempt to improve the energy performance and thermal comfort of heritage buildings. The ten passive design scenarios encompassed double low-E glass, double reflected glass, double low-E glass and double wall with an air gap, double low-E glass and double wall with thermal insulation, double low-E glass and double wall with lightweight thermal insulation, double low-E glass and double wall with sprayed foam insulation, double reflected glass and double wall with an air gap, double reflected glass and double wall with thermal insulation, double reflected glass and double wall with lightweight thermal insulation, and double reflected glass and double wall with sprayed foam insulation. The results show that using double low-E glass and applying a double wall with polystyrene thermal insulation can enhance the thermal comfort inside the building and reduce the energy performance and CO2 emissions to 17% and 9%, respectively.

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Indoor Ventilation and Comfort Evaluation of Traditional Folk Houses under Natural Conditions in China

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.955-959.4087 ◽

2014 ◽

Vol 955-959 ◽

pp. 4087-4091

Author(s):

Yong Rao ◽

Dong Sheng Wang

Keyword(s):

Thermal Comfort ◽

Natural Ventilation ◽

Influence Factors ◽

Internal Surface ◽

Building Envelope ◽

Indoor Thermal Comfort ◽

Important Means ◽

Building Ventilation ◽

Indoor And Outdoor

Based on the subjective questionnaire and field measurement of the physical environment about traditional folk houses indoor and outdoor,this topic chose three typical folk houses to analyze thermal comfort, indoor the wind field ,and temperature field , summarized the indoor ventilation problems existing in the traditional folk houses, explored the influence factors of indoor ventilation and thermal comfort. Poor indoor thermal comfort is mainly manifested as: the higher indoor temperature and the higher internal surface temperature of building envelope, and poor air flow indoor. It is one of important means for promoting the indoor thermal comfort and improving the indoor air quality of traditional folk houses by adopting appropriate building ventilation technology and effectively using natural ventilation.

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