HBI Lab Research

June 16, 2017

Traditional air-conditioning methods maintain temperatures in a whole room at a constant level, and much work has been done to assess and improve the thermal comfort and sensations of people in a building environment. This study endeavors to identify the potential of u...

November 16, 2016

In the domain of building science and architectural design, the immersive virtual environment (IVE) is being commonly adopted due to its convenience and cost-effectiveness, especially for research relevant to occupant behavior in a building indoor environmental control...

November 16, 2016

This study investigated the relationship of thermal sensations at local body segments and the whole body for better understanding how to estimate the overall thermal perception as a function of partial body sensations, with consideration of human factors, such as gende...

November 13, 2016

The design and operation of HVAC systems face a conflict goals between providing acceptable thermal comfort conditions and reducing HVAC performance relevant energy consumption. Integrating occupants’ thermal comfort preferences into the HVAC control algorithms has hig...

August 1, 2016

The goal of this study is to investigate the possibility of using human eye pupil sizes to estimate visual sensations in office workplace environments. The human body, as a biological mechanism, naturally makes unconditioned responses using the parasympathetic nervous...

July 1, 2016

Achieving a thermal comfort condition for occupants of a building is the basic purpose of heating, ventilation, and air conditioning (HVAC) systems. However, since physiological conditions and satisfaction standards vary considerably from person to person, each individ...

May 31, 2016

Post Occupancy Evaluation (POE), as an architectural design decision tool, utilizes data concerning multiple users’ satisfaction in conjunction with indoor environmental components to develop a better quality of human life. However, one of the limitations of POE that i...

May 30, 2016

There have been many efforts to extract the impact of human behaviors from building-related data in the domain of Building Science. Recent studies use the information from power suppliers to estimate the impact of occupants, and the energy use level and variation. Howe...

Developing countries face the challenge of finding new ways to conserve energy usage in new construction as most of the construction is still going on, while developed countries like the United States face the challenge of the implement or optimizing energy conservatio...

November 16, 2015

In the U.S., building sectors account for a large proportion of the energy consumption. This research goal is to investigate and determine the significant impact of building physics information (i.e., basic façade features), as well as climatic impact, on building ener...

May 1, 2015

The commercial and residential building sector accounts for 39% of carbon dioxide (CO2) emissions in the United States per year, more than any other sector. The most significant factor contributing to CO2 emissions from buildings is their use of electricity. Commercial...

December 1, 2014

A number of trends have recently emerged in the areas of environmental building designs and high-performance systems. However, in spite of many design and technical efforts to improve the performance using multiple building enclosure components, especially green roofs,...

November 2, 2014

In order to be able to meet rigorous energy standards, serious attention needs to be given to correcting problems with recently constructed buildings and retrofitting older buildings. One step is determining where facades might not be performing as digitally modelled....

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University of Southern California

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