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Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
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- AHU (1)
- ATU (1)
- Acoustical (1)
- Acoustics (1)
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- Commercial buildings (1)
- Communication (1)
- Concrete Sandwich Wall Panels (1)
- Fault Prevalence (1)
- Fault detection and diagnostics (1)
- Fault taxonomy (1)
- HVAC (1)
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- RTU (1)
- Restaurant (1)
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- Verbal (1)
Articles 1 - 3 of 3
Full-Text Articles in Architecture
Investigation Of The Prevalence Of Faults In The Heating, Ventilation, And Air-Conditioning Systems Of Commercial Buildings, Amir Ebrahimifakhar
Investigation Of The Prevalence Of Faults In The Heating, Ventilation, And Air-Conditioning Systems Of Commercial Buildings, Amir Ebrahimifakhar
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
This dissertation describes a large-scale investigation of heating, ventilation, and air-conditioning (HVAC) fault prevalence in commercial buildings in the United States. A multi-year dataset with 36,556 pieces of HVAC equipment including air handling units (AHUs), air terminal units (ATUs), and packaged rooftop units (RTUs) was analyzed to determine values for several HVAC fault prevalence metrics. The primary source of data for this study comes from three commercial fault detection and diagnostics (FDD) providers. Since each FDD provider uses different terms to refer to the same fault in an HVAC system, a mapping function was created for each FDD provider’s dataset, …
Out-Of-Plane Behavior Of Concrete Insulated Wall Panels With 2-Inch, 8-Inch, And 10-Inch Insulation, Jacob Luebke
Out-Of-Plane Behavior Of Concrete Insulated Wall Panels With 2-Inch, 8-Inch, And 10-Inch Insulation, Jacob Luebke
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
Insulated concrete sandwich wall panels provide structurally and thermally efficient building envelopes and are becoming more popular as energy regulations tighten. To continually adapt to an ever-changing building market and new energy regulations, insulated concrete wall panels are being constructed with thinner wythes, thicker insulation, and relying on partial composite action to decrease material costs and increase thermal and structural efficiency. Numerous methods of the design of partially composite insulated concrete sandwich wall panels have been introduced in recent decades and have been verified by comparing their results to existing experimental testing. Existing testing data for insulated concrete sandwich wall …
Studying Acoustical Characteristics Of Occupied Restaurants, Jared Paine
Studying Acoustical Characteristics Of Occupied Restaurants, Jared Paine
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
Sound level data and occupancy data have been logged in five restaurants by the research team at the University of Nebraska – Lincoln. Sound levels and occupancy at 10 second intervals were documented over time periods of roughly two hours during active business hours. Noise levels were logged with dosimeters distributed throughout each restaurant, and occupancy was obtained from images recorded by infrared cameras. This work presents data on average sound levels and statistical metrics, such as L10 and L90 values as well as on each restaurant’s Acoustical Capacity and Quality of Verbal Communication, as introduced by Rindel (2012). Acoustical …