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

2009 ◽  
pp. 77-77-8
Author(s):  
J. Eric Peterson ◽  
William H. Blodgett
Keyword(s):  
Energy Savings ◽  
Building Envelope

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.

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 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.

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

scholarly journals Energy Retrofit. A Case Study—Santi Romano Dormitory on the Palermo University

2021 ◽  
Vol 13 (24) ◽  
pp. 13524
Author(s):  
Domenico Curto ◽  
Vincenzo Franzitta ◽  
Andrea Guercio ◽  
Domenico Panno
Keyword(s):  
Input Data ◽  
Energy Savings ◽  
Electrical Energy ◽  
Energy System ◽  
Careful Analysis ◽  
Initial Energy ◽  
Building Envelope ◽  
Energy Retrofit ◽  
Reduction Of Energy Consumption

Electrical and thermal consumption related to buildings, whether civil, commercial, public, or of any other kind, is very much in focus today. With today’s targets for energy savings, reduction of consumption, and environmental impact, it is necessary to carry out energy retrofits to modernize installations and their management. The realization of an effective improvement requires a careful analysis of the case study because each category of building has different requirements such as different load profiles and different installations and needs. This was carried out by studying the electrical and thermal load profiles. A good initial energy audit can provide the retrofit solutions capable of achieving the reduction of energy consumption and the emission of climate-changing gases into the atmosphere. A case study, carried out by the Department of Engineering of Palermo, showed how it is possible to perform an energy retrofit to modernize the energy system of the student dormitory at the University of Palermo. The paper presented a study carried out by programming a series of interlinked calculations in Microsoft Excel. In order to quantify the energy savings of the structure under examination, it is necessary to enter some input data, thanks to which all the formulas implemented in the calculation software were automatically completed. The programming of the calculations makes it possible to carry out an energy retrofit with interventions on the building envelope and the installations. The desire to program an automated calculation by modifying only the input data is intended to replicate a study on other buildings with the same peculiarities. In this way, it is possible to verify which retrofit hypotheses would be useful to upgrade old public administration buildings. In the analyzed case study, 65% of electrical energy and 33% of thermal energy could be saved by replacing generation systems, installing a co-generator, replacing windows, and replacing lamps with LED ones.

scholarly journals A Study of Energy Efficiency in Flats, Case Study: The A-B-C Tower of Tambora Flats in Jakarta, Indonesia

2021 ◽  
Vol 3 (2) ◽  
pp. 97-106
Author(s):  
Eugineus Rivado Victor Laude ◽  
Satriya Wahyu Firmandhani
Keyword(s):  
Energy Efficiency ◽  
Low Income ◽  
Natural Ventilation ◽  
Energy Savings ◽  
Green Building ◽  
Green Buildings ◽  
Building Envelope ◽  
Operating Costs ◽  
Operational Costs

Flats are one of the government's solution to provide decent housing for low-income people. However, as mostly flats overlook energy efficiency aspects, residents must pay high rental and operational costs. Therefore, this paper aims to study the principles of green buildings, especially in the building envelope that can bear the operating costs of flats with the case study on the A-B-C Tower of Tambora Flats. The A-B-C Tower of Tambora Flats is one of the flats building in Jakarta that has rental cost issues. This study employed the EDGE application that provided energy saving values in the application of green building principles, such as building mass and orientation, wall and roof finishing materials, natural shading and ventilation elements. From these values, it was only the application of green building principles that was significant for the Tambora flats. The results of this study revealed that the optimization of natural ventilation for flats was still important and having a significant impact on energy savings

Literal Media Ecology: Crisis in the Conditions of Production

2017 ◽  
Vol 19 (5) ◽  
pp. 486-503 ◽  
Author(s):  
Brett R. Caraway
Keyword(s):  
Political Theory ◽  
Capital Accumulation ◽  
Energy Savings ◽  
Media Ecology ◽  
Environmental Responsibility ◽  
Media Technologies ◽  
Contemporary Media ◽  
Matter Energy

This article outlines a socio-political theory appropriate for the study of the ecological repercussions of contemporary media technologies. More specifically, this approach provides a means of assessing the material impacts of media technologies and the representations of capitalist ecological crises. This approach builds on the work of ecological economists, ecosocialist scholars, and Marx’s writings on the conditions of production to argue that capitalism necessarily results in ecological destabilization. Taking Apple’s 2016 Environmental Responsibility Report as a case study, the article uses the theory to analyze Apple’s responses to ecological crises. The article asserts that Apple’s reactions are emblematic of the capitalist compulsion for increasing rates of productivity. However, unless the matter/energy savings achieved through higher rates of productivity surpass the overall increase in the flow of matter/energy in production, ecological crises will continue. Ultimately, capital accumulation ensures continued ecological destabilization.

scholarly journals An Analytical Approach for the Selection of Technologies to be Integrated in a Plug&play Façade Unit: The RenoZEB Case Study

Proceedings ◽  
2021 ◽  
Vol 65 (1) ◽  
pp. 29
Author(s):  
Alessandro Pracucci ◽  
Sara Magnani ◽  
Laura Vandi ◽  
Oscar Casadei ◽  
Amaia Uriarte ◽  
...  
Keyword(s):  
Building Envelope ◽  
Design System ◽  
Decision Matrix ◽  
Design Guideline ◽  
Existing Building ◽  
Building Conditions ◽  
Zero Energy Building ◽  
System A ◽  
Selection Of

The nearly Zero Energy building (nZEB) renovation market is currently the key feature in the construction sector. RenoZEB aims to develop a systematic approach for retrofitting by assembling different technologies in a plug and play building envelope. This paper presents the methodology used to transform the RenoZEB concept in the design system. A multi-criteria decision matrix is used for the selection of the best façade technologies within the market while the analysis of the existing building conditions allows to develop a replicable approach for designing deep retrofitting intervention through a plug&play façade. The methodology appears to be a valuable support for the selection of technologies and allows to define a design guideline for the envelope.

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