Open Access. Powered by Scholars. Published by Universities.®

Architecture Commons

Open Access. Powered by Scholars. Published by Universities.®

Civil and Environmental Engineering

Architectural Engineering -- Dissertations and Student Research

Articles 1 - 3 of 3

Full-Text Articles in Architecture

How Acoustics In California High Performance Schools Relate To Student Achievement, Devin K. Wong Nov 2016

How Acoustics In California High Performance Schools Relate To Student Achievement, Devin K. Wong

Architectural Engineering -- Dissertations and Student Research

This research project seeks to determine if students attending K-12 schools meeting a minimum standard of high performance classroom conditions in the state of California do evidence higher scholastic achievement, based on publically available results on state-wide standardized tests. In three phases, a subset of 200+ schools applying for grants dedicated to building high performance schools over the past decade was correlated with an existing database of achievement scores for all public schools in California. The criteria utilized to specify high performance classrooms was provided by the California High Performance Initiative (HPI) Grant program. Academic achievement was evaluated on a ...


Subjective Perception Of Varying Reflection Densities In Room Impulse Responses, Hyun Hong Dec 2015

Subjective Perception Of Varying Reflection Densities In Room Impulse Responses, Hyun Hong

Architectural Engineering -- Dissertations and Student Research

Reverberation time (RT) is a metric commonly used to describe room acoustic conditions, but different rooms which have the same reverberation time can have different reflection densities. Much less is known about how humans perceive different reflection densities and how sensitive humans are to changes in reflection density. Previous investigations in the existing literature have studied the upper limit of distinguishable reflection density using artificial impulse responses, but not with more realistic impulse responses simulated in room acoustic software or measured from real rooms. The aim of this dissertation is to investigate methods for quantifying reflection density from measured impulse ...


Pump Controller Design For Variable Primary Flow Configuration Systems, Yifan Shi May 2013

Pump Controller Design For Variable Primary Flow Configuration Systems, Yifan Shi

Architectural Engineering -- Dissertations and Student Research

Pump systems are utilized widely in Heating, Ventilation and Air-Conditioning (HVAC) systems. There are mainly three configuration types: (1) the constant primary-only flow configuration, (2) the constant primary/variable secondary flow configuration, and (3) the variable primary-only flow configuration. This thesis focuses on finding the optimal control strategy for it and programming a controller for easy in-field usage.

In this thesis, the pump brake horse power (BHP) of the three pump configurations is simulated and compared using varying control methods. The best pump efficiency staging and DP reset control methods are implemented into the pump controller. A one month field ...