scholarly journals Assessment of Indoor Environmental Quality for Retrofitting Classrooms with An Egg-Crate Shading Device in A Hot Climate

2019 ◽  
Vol 11 (4) ◽  
pp. 1078 ◽  
Author(s):  
Carmen Calama-González ◽  
Rafael Suárez ◽  
Ángel León-Rodríguez ◽  
Simone Ferrari
Keyword(s):  
Solar Radiation ◽  
Environmental Quality ◽  
Indoor Environmental Quality ◽  
Cooling Systems ◽  
Incident Solar Radiation ◽  
Hot Climate ◽  
Shading Device ◽  
Operative Temperatures ◽  
Do So

In the Mediterranean climate, a large number of educational buildings suffer from discomfort due mostly to energy-deficient thermal envelopes and a lack of cooling systems. Impending climate change is expected to worsen overheating in classrooms, especially during heatwave periods. Therefore, the protection of window openings to reduce incident solar radiation while maintaining adequate indoor environmental quality must be considered a necessary key focus. The main objective of this research is to assess the influence of an egg-crate shading device on the indoor environmental quality of a classroom in Southern Spain. To do so, two classrooms—with and without this shading device—were simultaneously monitored over a whole year. The implementation of an egg-crate shading device allowed for a significant reduction of the incident solar radiation, both in summer and mid-season (around 45–50%), which objectively slightly conditioned indoor operative temperatures. Given the noticeable influence of the user patterns observed, indoor illuminance was also improved, as the rolling shutters tended to be opened at higher aperture levels.

scholarly journals Thermal and Lighting Consumption Savings in Classrooms Retrofitted with Shading Devices in a Hot Climate

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2790 ◽  
Author(s):  
Carmen Calama-González ◽  
Rafael Suárez ◽  
Ángel León-Rodríguez
Keyword(s):  
Air Conditioning ◽  
Visual Comfort ◽  
Cooling Systems ◽  
Use Patterns ◽  
Hot Climate ◽  
Shading Devices ◽  
Ambient Systems ◽  
Shading Device ◽  
Current Energy ◽  
Operative Temperatures

Most educational buildings in southern Spain do not meet current energy requirements as weak thermal envelopes and the lack of cooling systems lead to severe discomfort in classrooms, especially when temperatures are above 30 °C. Given that global warming is expected to worsen this situation in coming decades, one of the first steps to be taken is to protect window openings from high levels of solar radiation by adding shading devices to reduce indoor temperatures and improve visual comfort. The aim of this research is to evaluate the reduction in thermal and lighting consumption in a classroom where a solar protection system in the form of an egg-crate shading device was installed. Two classrooms—one with an egg-crate device and another with no shading system—were monitored and compared for a whole year. The use of an egg-crate device in these classrooms reduced indoor operative temperatures during warmer periods while also improving indoor natural illuminance levels. Moreover, annual electric air conditioning consumption decreased by approximately 20%, with a 50% reduction in electric lighting consumption. These savings in electricity were largely conditioned by the use patterns observed in these ambient systems.

scholarly journals A field survey on the indoor environmental quality of the UK primary school classroom

2016 ◽  
Vol 11 (10) ◽  
pp. 492-496 ◽  
Author(s):  
Yufan Zhang ◽  
Peter Barrett ◽  
Fay Davies ◽  
Lucinda Barrett
Keyword(s):  
Primary School ◽  
Environmental Quality ◽  
Field Survey ◽  
Indoor Environmental Quality ◽  
School Classroom ◽  
The Uk

ASSESSMENT OF INDOOR ENVIRONMENTAL QUALITY AND OCCURRENCE OF SICK BUILDING SYNDROME IN SMALL OFFICES IN PENANG, MALAYSIA

2015 ◽  
Vol 75 (5) ◽  
Author(s):  
Ang Qiu Mei ◽  
Md Azree Othuman Mydin
Keyword(s):  
Environmental Quality ◽  
Sick Building Syndrome ◽  
Quality Measurement ◽  
Comfort Level ◽  
Working Environment ◽  
Indoor Environmental Quality ◽  
Sick Building ◽  
The Difference

This study was done to investigate the relationship between indoor environmental quality and prevalence of Sick Building Syndrome in six small offices inPenangIsland. Indoor environmental quality measurement was conducted according to relevant standards. There are totally Sixty workers were selected to participate in an electronic questionnaire survey. Questionnaire was used to record the comfort level of respondents in the case studies and level of sick building syndrome faced by respondents. Through indoor environmental quality measurement, it is found that most of the offices facing the lighting and noise problem. The result from the questionnaire shows that in overall, the occupants satisfy with their working environment in term of indoor environmental quality although the result also shows the opinions of occupants on dissatisfaction on certain indoor environmental parameter according to case study. The study also found that most of the occupants feel drowsy and fatigue when they work within the offices. Besides, due to the difference of the indoor environmental quality of the buildings, the occupants are suffered from different symptoms of the sick building syndrome.

scholarly journals Assessing Indoor Environmental Quality of Educational Buildings Using BIM

2015 ◽  
Vol 4 (8) ◽  
Author(s):  
Ibrahim Al-Sulaihi ◽  
Khalid Al-Gahtani ◽  
Abdullah Alsugair ◽  
Ibrahim Tijani
Keyword(s):  
Environmental Quality ◽  
Indoor Environmental Quality ◽  
Educational Buildings

Short-term Measurements of Indoor Environmental Quality in Selected Offices – Case Study

2017 ◽  
Author(s):  
Ludmila Meciarova ◽  
Silvia Vilcekova ◽  
Eva Kridlova Burdova ◽  
Ilija Zoran Apostoloski ◽  
Danica Kosicanova
Keyword(s):  
Environmental Quality ◽  
Indoor Air ◽  
Indoor Environmental Quality ◽  
Indoor Climate ◽  
Climate Conditions ◽  
Healthy Environment ◽  
Health And Wellbeing ◽  
The One

Decent quality of indoor air is important for health and wellbeing of building users. We live, work and study in indoors of various types of buildings. Often people are exposed to pollutants at higher concentrations than these that occur out-doors. Continual investigation of indoor air quality is needed for ensuring comfort and healthy environment. Measuring and analysis of occurrence of physical, chemical and biological factors is the first step for suggestion of optimization measures. Inside school buildings there are often inadequate indoor climate conditions such as thermal comfort parame-ters or ventilation. The aim of this study was determination of indoor environmental quality in selected offices in the building of elementary school in Slovakia. The values of operative temperature were not within the optimum range of values for the warm period of the year in one of the monitored offices. The intensity of illumination was lower in the two offices. Low levels of particulate matters were measured except the one office where permissible value was exceeded by 7.6%.

scholarly journals Study of impact of increased number of devotees on indoor environmental quality of heritage temples of goddess Mahalaxmi at Kolhapur, Maharashtra, India.

2020 ◽  
Vol 170 ◽  
pp. 05004
Author(s):  
Anjali Jadhav ◽  
Sushma Kulkarni ◽  
Ashish Rege
Keyword(s):  
Cultural Heritage ◽  
Environmental Quality ◽  
Natural Ventilation ◽  
Nasal Congestion ◽  
Good Condition ◽  
Indoor Environmental Quality ◽  
Standard Level ◽  
The Impact ◽  
The Temple

India has a great cultural heritage of temples across the country. There is a wide variety of temples of variety of deities constructed from East to West and North to South of India. Most of the temples are built centuries ago and still are in good condition and the centre of cultural activities. Mahalaxmi temple precinct is a very old precinct in Kolhapur, built in 8th century by Chalukyan rulers. Every year lacs of devotees are visiting this temple of goddess Mahalaxmi from most of the part of India. The temple is constructed of basalt stone with beautiful intricate carving on it. This paper focus on indoor environmental quality of the temple which is deteriorated due to the impact of increased number of devotees. Some of the devotees face the problem of suffocation, fatigue, fainting, irritation, nasal congestion; as provision of vents are absent and natural ventilation is not available inside the shrine of goddess Mahalaxmi. Due to lack of air exchange and natural ventilation the indoor environmental quality is deteriorated. It is observed that the CO2 level is increased, decreased in O2 level, rise in temperature and humidity above the standard level causing discomfort.

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