Articles tagged with Commercial Buildings
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Engineers at RMIT University have developed cardboard-confined rammed earth, a novel building material that uses locally sourced materials and reduces waste going to landfill. The material boasts one quarter of the carbon footprint of concrete and can be made on-site using cardboard formwork.
A recent study found that the pandemic led to a significant shift towards staying at home, with people spending nearly an hour less per day on out-of-home activities. The trend has continued post-pandemic, with time spent away from home still lower than in 2019.
Researchers from the University of Johannesburg deployed Few Shot Learning (FSL) for NIALM, a non-intrusive appliance load monitoring system. FSL requires only 7 test images to recognize appliances with 97.83% accuracy, making it faster and more cost-effective than traditional Machine Learning.
A recent study published in Engineering Construction & Architectural Management identified the main obstacles preventing digital transformation in the engineering and construction industry. The three main problems are a lack of laws and regulations, a lack of support and leadership, and a lack of resources and professionals.
A new online tool from NIST offers a solution to regularly check ventilation by measuring indoor carbon dioxide levels. The Quick Indoor CO2 (QICO2) calculator takes into account factors like occupants, outdoor CO2 levels, and building size to provide accurate results.
A study published in PLOS Water found that office buildings with low-consumption plumbing may experience chemical and microbiological safety issues due to weekend stagnation. The research highlights the need for regular water testing in commercial buildings, even those designed as 'green' to reduce water consumption.
Researchers propose a disaggregation strategy to estimate power consumption of individual electrical facilities, improving accuracy over traditional methods. The new approach uses linear regression residuals and clustered daily routines to provide more accurate estimations for workdays and holidays.
Researchers from Xi'an Jiaotong-Liverpool University provide valuable insights on managing C&D waste and reducing carbon emissions in building refurbishment projects. By upcycling generated waste, carbon emissions can be significantly reduced, with a potential reduction of around 40% compared to traditional practices.
Researchers developed a highly efficient wave-based acoustics simulation that can accurately estimate the acoustics of large-scale interior spaces. The method uses a time-domain Finite Element Method to consider frequency-dependent characteristics of sound absorption materials, enabling precise modeling and high-speed estimations.
A novel plan to deploy smart transactive energy systems on the US power grid could reduce daily load swings by 20-44% and save consumers up to $50 billion annually. By coordinating with utilities, consumers can dynamically control big energy users like heat pumps and electric vehicle charging stations.
Scientists from Incheon National University identified interzonal airflow across household entrance doors as a dominant factor in calculating heating loads. They found that strong stack effect and weather-driven airflow rates were larger than external infiltration rates, making conventional airtightness measures unreliable.
A new model estimates annual energy use intensity of 209 structures in Pittsburgh with only a 7% error rate. The Urban Building Energy Model can aid policy makers in setting energy goals and efficiency regulations for commercial buildings.
Green roofs have been found to improve indoor air quality by reducing ozone levels, according to a PSU study. The research involved comparing air quality between a green roof and a conventional white membrane roof on a retail store in North Portland.
A new report found that if commercial buildings fully used controls nationwide, the US could slash its energy consumption by an average of 29%. This would result in significant national energy savings, with some building types potentially saving up to 49% and 41%.
The Sensor Suitcase is a portable case that contains sensors and equipment to identify energy-saving opportunities in small commercial buildings. It helps users find cost-effective measures to save about 10% on their energy bills, making it easier for building owners to make their facilities more energy efficient.
A new study published by Concordia University researchers confirms that cool roofs provide net energy and monetary savings in colder climates. Using modelling software, they found annual energy expenditure savings of $4-14 per 100 square meters in four cold-climate cities.
A study by Julia Day found that occupants who had effective training in using the features of their high-performance buildings were more satisfied with their work environments. The study, which examined over 50 high-performance buildings across the US, highlighted the importance of creating a culture focused on conservation.
The NREL Building Agent application allows facility managers to diagnose and adjust for problems based on direct occupant comfort feedback. This integration enables a more active role for occupants in comfort and energy trade-offs, leading to improved building performance and cost savings.
Scientists at PNNL found that new rooftop units reduce energy costs by 41% compared to current units. If widely adopted, these devices could idle eight average-size coal-fired power plants in a year.
A recent report from PNNL estimates that US commercial building owners could save an average of 38% on their heating and cooling bills by installing a handful of energy efficiency controls. The estimated savings range from 28% to 67% depending on local climate and energy prices.
A UC Riverside researcher has received a $385,000 grant to evaluate the efficiency of HVAC motors in buildings through on-site testing and a new motor testing facility. The study aims to measure energy use under actual operating conditions and assess software used by architects and engineers designing HVAC systems.
A University of Melbourne study found that white roofs can cool commercial buildings in the City of Melbourne by three percent on hot days, reducing energy consumption and improving air quality. The research, commissioned by the City of Melbourne, aimed to guide building owners through the best materials to use for white roofs.
A new software tool from NIST assesses the climate suitability of natural ventilation in office buildings, considering adaptive thermal comfort standards and humidity levels. The Climate Suitability Tool provides estimates of ventilation rates and effective cooling hours, aiding architects in designing more efficient ventilation systems.
Florida Institute of Technology (Florida Tech) has received two grants to continue and develop a new hurricane model. The first grant is $220,000 from the Florida Department of Financial Affairs Office of Insurance Regulation to predict hurricane insurance losses for commercial buildings. The team will also maintain an existing enginee...
A new energy-saving method has been developed to reduce the cooling-related demand for electricity in small office buildings. The approach involves running air conditioning at cooler-than-normal settings in the morning and then raising the thermostat to warmer settings in the afternoon, resulting in a 25-30% reduction in peak electrica...
Researchers simulated conditions of three building types in six cities and found that improved air tightness would result in energy savings ranging from 9-37%. The study suggests that increased airtightness can lead to smaller but still significant cost savings in warmer climates.
A new software tool, LoopDA, allows architects and engineers to determine the size of natural ventilation openings needed for desired airflow rates. The program uses an engineering-based design process to control indoor air quality and thermal comfort.