Browsing by Author "Augenbroe, Godfried"

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Citation - WoS: 2
Citation - Scopus: 2
Optimal Energy Design and Retrofit Recommendations for the Turkish Building Sector
(COLLEGE PUBLISHING, 2021) Sayın, Selçuk; Augenbroe, Godfried
This paper introduces methodologies and optimal strategies to reduce the energy consumption of the building sector with the aim to reduce global energy usage of a given region or country. Many efforts are underway to develop investment strategies for large-scale energy retrofits and stricter energy design standards for existing and future buildings. This paper presents a study that informs these strategies in a novel way. It introduces support for the cost-optimized retrofits of existing, and design improvements of new buildings in Turkey with the aim to offer recommendations to individual building owners as well as guidance to the market. Three building types, apartment, single-family house and office are analyzed with a novel optimization approach. The energy performance of each type is simulated in five different climate regions of Turkey and four different vintages. For each vintage, the building is modelled corresponding to local Turkish regulations that applied at the time of construction. Optimum results are produced for different goals in terms of energy saving targets. The optimization results reveal that a 50% energy saving target is attainable for the retrofit and a 40% energy saving target is attainable for new design improvements for each building type in all climate regions.
Support of Energy Retrofit Decisions at Multiple Scales
(Konya Technical University Faculty of Architecture and Design, 2012) Augenbroe, Godfried
This overview paper chronicles two recent projects conducted by the research group of the author dealing with retrofit decision-making at different levels of aggregation. Inspection of the projects reveals the contrast in resolution and scope of decision making that is typical of different retrofit contexts. At the aggregate level the benchmarking across a portfolio of buildings is supported including the selection of candidates for improvement. At the individual building level a drill-down analysis is supported by two modes of audit models, a calibrated simple normative model and a high fidelity dynamic simulation model. Both models contain explicit representations of uncertainty in the parameters and model assumptions and can thus be used to quantify the spread in energy performance of the proposed retrofit. This result is vital to support risk-conscious decision-making for retrofit stakeholders. This paper summarizes the findings of the two projects.