scholarly journals Feasibility and Occupants’ Perception of Double Skin Façade for Historical Buildings in Kuwait

2017 ◽  
Vol 14 (1) ◽  
Keyword(s):  
Indoor Air ◽  
Energy Savings ◽  
Sustainable Use ◽  
Building Envelope ◽  
Performance Expectations ◽  
Environmental Preferences ◽  
Democratic Movement ◽  
Quantitative And Qualitative Research ◽  
Double Skin

The paper focuses on diagnosing the Double Skin Facade (DSF) of the main Kuwait Municipality building complex based on occupants’ perception of different historical and environmental preferences. The case study building complex has a remarkable façade that represents the modern architectural and democratic movement of Kuwait. Unfortunately, due to improper maintenance and operation, the significance and benefits of the DSF in particular have not been utilized in this complex. The objective of this paper is to diagnose the DSF benefits of this building envelope and discuss the feasibility of renovation to improve its sustainable use and operation. Such sustainability includes daylighting, thermal comfort, indoor air quality (IAQ), and acoustic performances. To reach this objective, the study will be carried out using quantitative and qualitative research methods, such as site visits, interviews, questionnaire and literature review. It is found that responses of occupants are positive on the advantages and rehabilitations of the DSF of the complex. And based on the findings of this study, it is also believed by the authors that the preservation of its DSF is a more sustainable choice in this green architectural era. This is so due to its great occupants’ performance expectations and energy savings opportunities.

scholarly journals Indoor Environmental Quality Analysis for Optimizing Energy Consumptions Varying Air Ventilation Rates

2020 ◽  
Vol 12 (2) ◽  
pp. 482 ◽  
Author(s):  
Francesco Mancini ◽  
Fabio Nardecchia ◽  
Daniele Groppi ◽  
Francesco Ruperto ◽  
Carlo Romeo
Keyword(s):  
Environmental Quality ◽  
Energy Savings ◽  
Building Envelope ◽  
In Situ Monitoring ◽  
Quality Analysis ◽  
Airflow Rate ◽  
Indoor Environmental Quality ◽  
Hvac System ◽  
Energy Consumptions

The energy refurbishment of the existing building heritage is one of the pillars of Italian energy policy. Aiming for energy efficiency and energy saving in end uses, there are wide and diversified improvement strategies, which include interventions on the building envelope and Heating, Ventilation, and Air Conditioning (HVAC) systems, with the introduction of renewable energy sources. The research aims at evaluating the building energy consumptions and Indoor Environmental Quality (IEQ), varying the airflow rates handled by the HVAC system. A Case Study (the Aula Magna of a university building) is analysed; an in-situ monitoring campaign was carried out to evaluate the trend of some environmental parameters that are considered to be significant when varying the external airflow rates handled by the HVAC system. Additionally, dynamic simulations were carried out, with the aim of evaluating the energy savings coming from the airflow rates reduction. The results of this case study highlight the opportunity to achieve significant energy savings, with only slight variations in IEQ; a 50% reduction in airflow rate would decrease energy consumption by up to 45.2%, while increasing the carbon dioxide concentration from 545 ppm to 655 ppm, while the Particulate Matter and Total Volatile Organic Compounds increase is insignificant.

Sustainability and cost assessment of coastal vacation homes for energy retrofits

2017 ◽  
Vol 7 (2) ◽  
pp. 185-198 ◽  
Author(s):  
Kamalesh Panthi ◽  
Kanchan Das ◽  
Tarek Abdel-Salam
Keyword(s):  
Energy Use ◽  
Energy Savings ◽  
Residential Buildings ◽  
Building Envelope ◽  
Energy Usage ◽  
Water Heater ◽  
Content Type ◽  
Modeling Software ◽  
Energy Use Intensity

Purpose Vacation rental homes, in general, have different energy usage characteristics than traditional residential homes mainly because of the occupancy pattern that changes on a weekly basis. These homes, predominantly larger in size, offer a greater scope for energy savings also because of the wasteful habits of their seasonal occupants. The purpose of this paper is to investigate the causes of energy inefficiencies prevalent in these homes so that appropriate retrofit choices can be offered to homeowners. Design/methodology/approach This research presents a case study of a vacation rental home whose energy consumption was investigated in depth and energy inefficiencies identified through modeling using energy modeling software, eQUEST. Simulations were performed to identify viable retrofit scenarios. Findings While improvement in the building envelope such as providing shades/overhangs on the windows, reducing infiltration and increasing insulation of the exterior wall did not show promising results for savings on energy cost, other improvements such as use of highly efficient lamps, tank-less water heater system and occupancy sensors showed viable investment options with shorter payback periods. It was also found that energy use intensity of sampled houses was about half of the average of US residential buildings, which could primarily be attributed to the seasonal nature of occupancy of these houses. Originality/value There is a dearth of literature pertaining to energy efficiency-related retrofits of coastal vacation homes. This research fills that gap to some extent by addressing this issue with an ultimate aim of assisting homeowners in retrofit decision-making.

Comparative Study of Heat Transfer in Double Skin Facades on High-Rise Office Building in Jakarta

2012 ◽  
Vol 170-173 ◽  
pp. 2751-2755 ◽  
Author(s):  
Daryanto Daryanto
Keyword(s):  
Heat Transfer ◽  
Energy Savings ◽  
Field Measurements ◽  
Building Envelope ◽  
Office Buildings ◽  
High Rise ◽  
Double Skin ◽  
And Behavior ◽  
Double Skin Facades

Building envelope on high-rise office buildings have an important role of energy consumed. There are many methods and techniques that can be used to achieve this goal through energy efficiency for building envelope in the tropic area. The use of glass material becomes one of the alternatives that offer a more attractive appearance. Although the double skin facades (DSF) has been widely applied, but research on the thermal performance and behavior of the wind is still scarce for the tropics, so it is interesting to note related to energy conservation. To obtain a clear picture of the heat transfer and airflow, the research was conducted on the two office buildings with the same orientation and location but they were different on the building envelope. The study was conducted by the field measurements and simulation using CFD-ACE + software, to determine the performance of the heat transfer and behavior of airflow in the double skin facades. The results indicate that the role of wind on the design building envelope has an influence on the heat transfer and energy savings. Key words: wind, double skin facade, heat transfer, CFD, energy

The Impact of Balcony Glazing on the Selected Building Envelope

2016 ◽  
Vol 824 ◽  
pp. 315-322
Author(s):  
Zdenek Perina ◽  
Hana Sevcikova ◽  
Radek Fabian ◽  
Marcela Halirova ◽  
Eva Rykalova
Keyword(s):  
Water Vapor ◽  
Indoor Air ◽  
Energy Savings ◽  
Heat Insulation ◽  
Building Envelope ◽  
Existing Buildings ◽  
Indoor Climate ◽  
Living Space ◽  
Inner Surface ◽  
The Impact

Current requirements for energy savings lead to improve heat insulation properties of claddings. That is the reason why thermal insulation properties are improved in existing buildings, such as additional insulation of the building envelope and replacing filling holes in the facade. The reason for the implementation of the glazing of these areas is the idea of improving the indoor climate of the living space. It is assumed that condensation of water vapor and occurrence of moulds on inner surface of the structures can happened in certain conditions of indoor air.

Effect of different building envelope materials on thermal comfort and air-conditioning energy savings: A case study in Basra city, Iraq

2020 ◽  
pp. 101975
Author(s):  
Raad Z. Homod ◽  
Amjad Almusaed ◽  
Asaad Almssad ◽  
Manar K. Jaafar ◽  
Marjan Goodarzi ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Air Conditioning ◽  
Energy Savings ◽  
Building Envelope

scholarly journals Ventilation Positive Pressure Intervention Effect on IAQ in a School Building with Moisture Problems

2017 ◽  
Author(s):  
Camilla Vornanen-Winqvist ◽  
Kati Järvi ◽  
Sander Toomla ◽  
Kaiser Ahmed ◽  
Maria A. Andersson ◽  
...  
Keyword(s):  
Indoor Air ◽  
Fine Particulate Matter ◽  
Building Envelope ◽  
Positive Pressure ◽  
Fine Particulate ◽  
Volatile Organic ◽  
Negative Perceptions ◽  
Microbiological Agents ◽  
Total Volatile Organic Compounds

This case study investigates the effects of ventilation intervention on measured and perceived indoor air quality (IAQ) in a repaired school where occupants reported IAQ problems. Occupants´ symptoms were suspected to be related to the impurities leaked indoors through the building envelope. The study’s aim was to determine whether a positive pressure of 5-7 Pa prevents the infiltration of harmful chemical and microbiological agents from structures, thus decreasing symptoms and discomfort. Ventilation intervention was conducted in a building section comprising 12 classrooms and was completed with IAQ measurements and occupants´ questionnaires. After intervention, the concentration of total volatile organic compounds (TVOC) and fine particulate matter (PM2.5) decreased, and occupants´ negative perceptions became more moderate compared to those for other parts of the building. The indoor mycobiota differed in species composition from the outdoor mycobiota, and changed remarkably with the intervention, indicating that some species may have emanated from an indoor source before the intervention.

Energy Savings Resulting from Building Envelope Upgrades in Mid-Rise Construction—A Case Study

2007 ◽  
Vol 4 (9) ◽  
pp. 100842
Author(s):  
J. Eric Peterson ◽  
William H. Blodgett ◽  
P. Johnson ◽  
J. Boyd ◽  
S. W. Dean
Keyword(s):  
Energy Savings ◽  
Building Envelope
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