The Impact of Insulation and HVAC Degradation on Overall Building Energy Performance: A Case Study

Eleftheriadis, Geοrgiοs; Hamdy, Mohamed

doi:10.3390/buildings8020023

Cited by 28 publications

(14 citation statements)

References 17 publications

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“…In the bedroom of Case 1, the air set-point temperature presenting the best correlation was that corresponding to the iteration with 20 °C which resulted in a value of 0.37, compared to 0.33 and 0.28 obtained with the set-points at 18°C and 22°C, respectively. This difference may be caused by the deterioration of the cooling equipment due to the fact that it has more than four years of operation [36]. In the bedroom of Case 2, the dwellers pointed that, during the week.…”

Section: Indoor Temperature Model Calibrationmentioning

confidence: 99%

Indoor Temperature Validation of Low-Income Detached Dwellings under Tropical Weather Conditions

Barrientos-González

Vega-Azamar

Cruz

et al. 2019

Climate

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Urban territorial expansion generated in the last decades has brought a series of consequences, such as the variation between urban and suburban weather conditions affecting indoor temperature and increasing electricity consumption derived from the use of cooling systems. Current approaches of simulation models in residential buildings use indoor environmental data for carrying out validations to propose hygrothermal comfort alternatives for the mitigation of the effects of the external environmental conditions on the interior spaces of dwellings. In this work, an hourly evaluation of both indoor and outdoor environmental parameters of two case studies in a tropical climate was carried out, by means of a whole-building simulation approach tool during a week representative of the warmest period of the year. The integration of the collected environmental data in the theoretical model allowed us to reduce the error range of the estimated indoor temperature with results in normalized mean bias error between 7.10% and −0.74% and in coefficient of variation of the root mean square error between 16.72% and 2.62%, in the different indoor zones of the case studies. At the same time, the energy assessment showed a difference of 33% in Case 1 and −217% in Case 2 for final electricity consumption.

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Section: Indoor Temperature Model Calibrationmentioning

confidence: 99%

Indoor Temperature Validation of Low-Income Detached Dwellings under Tropical Weather Conditions

Barrientos-González

Vega-Azamar

Cruz

et al. 2019

Climate

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“…Mechanical, thermal, chemical, electromagnetic and biological factors can greatly impact the SL of polymeric products and how they degrade [25,27,[32][33][34][35]. The properties of polymeric BEMs change over their SL because of degradation that result from environmental loads (Table 2).…”

Section: Degradation Mechanisms In Polymeric Materialsmentioning

confidence: 99%

Critical Review of Polymeric Building Envelope Materials: Degradation, Durability and Service Life Prediction

2021

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This paper provides a critical review of the degradation, durability and service life prediction (SLP) of polymeric building envelope materials (BEMs), namely, claddings, air/vapour barriers, insulations, sealants, gaskets and fenestration. The rate of material deterioration and properties determine the usefulness of a product; therefore, knowledge of the significant degradation mechanisms in play for BEMs is key to the design of proper SLP methods. SLP seeks to estimate the life expectancy of a material/component exposed to in-service conditions. This topic is especially important with respect to the potential impacts of climate change. The surrounding environment of a building dictates the degradation mechanisms in play, and as climate change progresses, material aging conditions become more unpredictable. This can result in unexpected changes and/or damages to BEMs, and shorter than expected SL. The development of more comprehensive SLP methods is economically and environmentally sound, and it will provide more confidence, comfort and safety to all building users. The goal of this paper is to review the existing literature in order to identify the knowledge gaps and provide suggestions to address these gaps in light of the rapidly evolving climate.

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“…In other sectors beyond these, MCDM is the only dominant decision-making method identified including in Energy [6,52], Automotive [53,54], Manufacturing [55,56], PSS [57,58] and Supply Chain [59]. In all these latter sectors, it perhaps suggests that the emergent appreciation of the complex dynamics and the need for tools that cope with it are the drivers towards this trend.…”

Section: Descriptive Analysismentioning

confidence: 99%

A Utilitarian Decision—Making Approach for Front End Design—A Systematic Literature Review

2020

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The complexity of construction processes often means interaction between various stakeholders, activities and tasks in order to deliver the expected outcomes. The intensity and dynamics of front-end design (FED) mean decision techniques and methods are important in supporting projects benefits delivery more importantly those based on utility of decision making. This paper explores a new utilitarian decision-making approach based on a systematic literature review of FED decision making. It presents the state of the art in design decision making concepts and analysis of tools over the last 10 years (2009–2019). From a total of 111 peer-reviewed journal papers, fifteen decision-making techniques are identified as dominant in design decision making, broadly grouped in four major categories as explanatory/rational, Multi Criteria Decision Making techniques (MCDM), Hybrid and Visual methods. The review finds that the most applied of the MCDM is Quality Function Deployment (QFD); while among the rational/explanatory techniques is set-based design (SBD). While there is limited application of Multi Attribute Utility Theory (MAUT) in decision making, the paper finds that the robust consistency and structured approach better captures the intricate dynamics of FED; including modelling of the subjectivity, interdependences and uncertainty in design discourse.

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The Impact of Insulation and HVAC Degradation on Overall Building Energy Performance: A Case Study

Cited by 28 publications

References 17 publications

Indoor Temperature Validation of Low-Income Detached Dwellings under Tropical Weather Conditions

Indoor Temperature Validation of Low-Income Detached Dwellings under Tropical Weather Conditions

Critical Review of Polymeric Building Envelope Materials: Degradation, Durability and Service Life Prediction

A Utilitarian Decision—Making Approach for Front End Design—A Systematic Literature Review

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