Green remodeling and retrofitting are effective strategies for enhancing the sustainability of existing buildings. While green involves significant structural modifications, typically focuses on improving energy efficiency reducing environmental impact. However, easy-to-implement retrofit technologies can be particularly valuable low-income communities, offering a more affordable way to upgrade residences without extensive renovations. This paper analyzed effectiveness newly developed,...

Thermal comfort, indoor air quality (IAQ), and energy use are closely related, even though these have different aspects with respect to building performance. We analyzed thermal comfort IAQ using real-time multiple environmental data, which include temperature, relative humidity, carbon dioxide (CO2), particulate matter (e.g., PM10 PM2.5), as well electricity from an recovery ventilation (ERV) system for a childcare center. frequency time-series analyses were conducted in detail thoroughly...

This paper presents improved methods to detect cracks and thermal leakage in building envelopes using unmanned aerial vehicles (UAV) (i.e., drones) with video camcorders and/or infrared cameras. Three widely used contour detectors of Sobel, Laplacian, Canny algorithms were compared find a better solution low computational overhead. Furthermore, scheme frame-based location identification was developed effectively utilize the existing approach by finding current drone-assisted image frame. The...

Many commercial buildings today do not perform the way they were simulated. One potential reason for this discrepancy is that designers using building energy simulation programs fully understand analysis methods are based on and may therefore have unreasonable expectations about actual system performance or use. Therefore, purpose of study to trace origins most widely used thermal envelope loads in software analyze high-performance United States. Such an important better capabilities so can...

This study presents a review of the origins analysis methods used to design high-performance commercial buildings. includes in daylighting software developed United States. The this can help readers better understand and identify simulation programs. In other works, whole-building energy solar were reviewed (Oh Haberl 2015a, 2015b).

Pursuing innovations in sustainable architectural solutions, this study examines the impact of a climate-adaptive building envelope with dynamic photovoltaic integrated shading devices (PVSDs) on performance. A major challenge designing PVSDs is lack established guidelines for geometry and operations. We delve into complexities potential benefits integrating PVSD designs performance simulations, particularly considering their time-varying geometric operational aspects. This research assesses...

This study reviews the origins of analysis methods used to design high-performance commercial buildings. focuses on in solar thermal, passive solar, and photovoltaic software, developed United States Canada, using a new comprehensive genealogy chart. historical is important because it gives readers better understanding fundamentals methods. The whole-building energy daylighting simulation programs were reviewed other works (Oh Haberl 2015a, 2015b).

Smart thermostats are becoming an important tool that saves Heating, Ventilating, and Air Conditioning (HVAC) system energy use by optimizing thermostat settings. This paper presents the results of analysis measured, zone-by-zone indoor environmental conditions electricity savings from a smart includes temperature occupancy data each zone in single-family residence. In this analysis, statistical air profiles were developed for before after installation thermostat. The shows occupancy-based...

Zero-energy buildings have a critical role in reducing global energy use and greenhouse gas emissions. However, few studies analyzed net-zero commercial using measured such as whole-building level end-use data. This paper presents an consumption analysis for the first building Idaho, U.S., cold dry climate data from this well use. Monthly bill analysis, Energy Use Intensity (EUI) were conducted. The combined of study shows that HVAC system was most sensitive to outside air temperature,...

Building energy signature analysis is a well-established tool for understanding the temperature sensitivity of building consumption and measuring savings. This has been used to measure savings residential, commercial, even industrial buildings. The public availability electricity loads (i.e., hourly demand (MW)) from entire Balancing Authorities (BAs) provide an interesting opportunity apply this approach large aggregate load. In paper, we explore that BAs show correlations geographical...

Many smart apartments and renovated residential buildings have installed Smart Meters (SMs), which collect interval data to accelerate more efficient energy management in multi-family buildings. SMs are widely used for electricity, but many utility companies been working on systems natural gas water monitoring be included SMs. In this study, we analyze heating use obtained from short-term annual predictions using change-point models the coefficient checking method. It was found that 9-month...

Building energy simulation models have been used to assist the design and/or optimization of buildings performance. The results from building can be more reliable when measured use data, indoor environmental condition system operation status, and coincident weather data are validate results. In this paper, given wide-spread home automation devices in residential buildings, we studied how well a model tuned using interval smart thermostat meter. analysis is based on multi-stage approach that...

Fuzzy Controller Algorithm for Automated HVAC Control Myungjin Chae, Kyubyung Kang, Dan D. Koo, Sukjoon Oh and Jae Youl Chun Pages 566-570 (2020 Proceedings of the 37th ISARC, Kitakyushu, Japan, ISBN 978-952-94-3634-7) Abstract: This research presents design framework artificial intelligent algorithm an automated building management system. The AI system uses wireless sensor data or IoT (Internet Things) user's feedback together. sensors collect such as temperature (indoor outdoor),...