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Articles 1 - 14 of 14
Full-Text Articles in Engineering
Fenestration Studies On Building Energy Using The Facade Evaluation Facility, Wendell Cocina
Fenestration Studies On Building Energy Using The Facade Evaluation Facility, Wendell Cocina
UNLV Theses, Dissertations, Professional Papers, and Capstones
The project was developed to assess several types of facades and their influence on building energy, mainly focused on windows and other building fenestrations. Requirements for the facility are stated in this paper alongside corresponding solutions. The facility is designed to represent a section of a building façade. Experimenting on a wide range of fenestrations including windows with integrated PV elements was the primary prerequisite. The option of removable façade configurations was used and allowed testing specimens to be changed effortlessly. Instrumentation and data acquisition are discussed including calibration and uncertainty analysis. Investigation of the air conditioning unit was concluded …
A Life Cycle Comparison Of Light-Frame Wood And Insulated Concrete Form Building Envelopes: Energy Use And Green House Gases, Sherman Authur Matthews
A Life Cycle Comparison Of Light-Frame Wood And Insulated Concrete Form Building Envelopes: Energy Use And Green House Gases, Sherman Authur Matthews
Masters Theses
Given the building sector’s substantial contribution to global energy use and green house gas (GHG) emissions, it is of great importance that only the most effective building envelopes are utilized. Conventional light-frame wood building envelopes are highly popular due to their ease of construction and building economy; however the life cycle performance of the building envelope is often overlooked when this selection is made. Although insulated concrete form (ICF) building envelopes generally require a substantially higher embodied energy input, it should be considered that improvements during a building’s operation phase can offers significant energy returns, ultimately reducing the building’s life …
Comparison Of Design-Build And Design-Bid-Build Performance Of Public University Projects, James David Fernane
Comparison Of Design-Build And Design-Bid-Build Performance Of Public University Projects, James David Fernane
UNLV Theses, Dissertations, Professional Papers, and Capstones
With an unsure market and scarce work, owners across the United States, especially universities, are finding themselves in situations where they are unable to complete their projects within cost and schedule using the traditional delivery method: Design-Bid-Build (DBB). Under the DBB project delivery method, many competent contractors are electing to send low bids on projects just to keep work on their books, with plans to receive change orders once the project is underway; this practice is leading to cost and schedule overruns. Public universities across the United States are beginning to elect to use Design-Build (DB) as an alternate project …
An Environmental Economic Analysis Of Green Building And The Leadership In Energy And Environmental Design Rating System, John A. Manna
An Environmental Economic Analysis Of Green Building And The Leadership In Energy And Environmental Design Rating System, John A. Manna
Honors Theses
Buildings account for over 70% of U.S. energy consumption and produce 30% of the nation’s greenhouse gas emissions. With growing concerns over future energy prices, the green building industry and the LEED rating system have made it their goal to produce better performing, more efficient buildings. LEED projects have been implemented in all 50 states, with 46 implementing LEED into public policy. In this study we evaluate the environmental and economic benefits of the LEED certification process. A cost-benefit analysis provides a framework for assessing the life cycle of a LEED building, incorporating both energy and cost savings, as well …
Improving The Energy Efficiency Of Fero House Home Of Alpha Delta Phi, Matt S. Stankiewicz
Improving The Energy Efficiency Of Fero House Home Of Alpha Delta Phi, Matt S. Stankiewicz
Honors Theses
As our country continues to grow and prosper we are faced with a growing number of environmental issues. While many of these issues were ignored in the pursuit of economic growth, we are now facing the harsh realities of our unmitigated expansion. The continual mining and use of fossil fuels has scarred our landscapes, polluted our air, and contaminated our waterways. Our nation’s greenhouse gas emissions are higher than ever and contributing heavily to global warming. With the United States’ population constantly on the rise and projected to hit 350 million in little over a decade1, it appears that our …
Characterization Of Green Roofs And Their Potential Effects On The Union College Campus, Cybil Tribie
Characterization Of Green Roofs And Their Potential Effects On The Union College Campus, Cybil Tribie
Honors Theses
A green roof is the construction of protective layers and vegetation on the roof of a building. Green roofs are capable of providing ecological benefits to the environment as well as economic advantages for the client. Therefore, my thesis will explore the characterization features of green roofs by focusing on the layers they are made up of, the different types of green roofs, and the benefits they can provide. Although this technology is relatively new to the United States in comparison to places such as Germany, where green roofs have been extensively used for over 40 years, there is a …
In-Plane Cyclic Shear Performance Of Interlocking Compressed Earth Block Walls, David William Bland
In-Plane Cyclic Shear Performance Of Interlocking Compressed Earth Block Walls, David William Bland
Master's Theses
This thesis presents results from testing of interlocking compressed earth block (CEB) masonry shear walls. CEBs are low strength earth masonry units sometimes stabilized with cement or lime. The interlocking compressed earth blocks (ICEBs) used in this experiment are dry stacked interlocking hollow units, which can be reinforced and grouted after they are laid. Although significant research has been undertaken to optimize the material properties of CEBs, little has been done to investigate the performance of structural systems currently being built using this technology.
Test results are reported for three 1800 mm x 1800 mm wall specimens constructed with cement …
The Impacts Of Road Capacity Removal, Jason E. Billings
The Impacts Of Road Capacity Removal, Jason E. Billings
Master's Theses
The road infrastructure of North America is aging, and many governments are faced with a critical decision: do we repair or remove freeways from our urban centers? Freeway repair is exceptionally expensive, but removing a freeway is widely seen as a risky venture which may result in negative traffic effects. Therefore, it is necessary to gain a clearer understanding of how removing road capacity effects traffic distribution. Three freeway segments were ultimately selected for case study analysis: two in San Francisco and one in Milwaukee. This analysis consisted of identifying changes in the traffic volumes and volume-capacity (V/C) ratios in …
An Empirical Comparison Of Life Cycle Cost Of Green School Buildings And Non-Green School Buildings, Nitisha Pushpala
An Empirical Comparison Of Life Cycle Cost Of Green School Buildings And Non-Green School Buildings, Nitisha Pushpala
UNLV Theses, Dissertations, Professional Papers, and Capstones
One of the major economic concerns today of the world is reduction of energy consumption because of depleting energy sources in the world. The construction sector in the United States is also contributing in reducing the energy consumption and construction cost of the buildings by constructing cost and energy efficient buildings with energy efficient materials and techniques. The U.S Department of Energy introduced the Building Technologies Program that develops techniques, tools and technologies for making buildings more energy efficient. Other private bodies like the Leadership in Energy and Environmental Design (LEED), which is developed by the U.S. Green Building Council …
Environmental Value Engineering Assessment Of Horizontal Directional Drilling And Open Cut, Lameck Onsarigo
Environmental Value Engineering Assessment Of Horizontal Directional Drilling And Open Cut, Lameck Onsarigo
Master of Technology Management Plan II Graduate Projects
There has been a growing concern over the rate of deterioration of wastewater collection and water distribution systems in the United States. The ever-growing need for rehabilitation and replacement of these systems has led to the birth of a research program by the United States Environmental Protection Agency focused on addressing the water infrastructure needs. This program-Innovation and Research for Water Infrastructure for the 21st Century-lays emphasis on research focused on system rehabilitation. There is a marked change in the way that the public view the environmental needs with ‘green’ becoming ‘the new gold’. Man has been blamed, and rightfully …
Asce 7–05 Design Rule For Relative Strength In A Tall Buckling-Restrained Braced Frame Dual System, Lisa J. Aukeman
Asce 7–05 Design Rule For Relative Strength In A Tall Buckling-Restrained Braced Frame Dual System, Lisa J. Aukeman
Master's Theses
In mid- to high-rise structures, dual systems (DS) enable a structural designer to satisfy the stringent drift limitations of current codes without compromising ductility. Currently, ASCE 7-05 permits a variety of structural systems to be used in combination as a dual system yet the design requirements are limited to the following statement: Moment frames must be capable of resisting 25% of the seismic forces while the moment frames and braced frames or shear walls must be capable of resisting the entire seismic forces in proportion to their relative rigidities.
This thesis assesses the significance of the 25% design requirement for …
Universal Engineering Programmer – An In-House Development Tool For Developing And Testing Implantable Medical Devices In St. Jude Medical, Khoa Tat Do
Master's Theses
During development and testing of the functionality of the pacemaker and defibrillator device, engineers in the St. Jude Medical Cardiac Rhythm Management Division use an in-house development tool called Universal Engineering Programmer (UEP) to ensure the device functions as expected, before it can be used to test on an animal or a human during the implantation process. In addition, some applications of UEP are incorporated into the official releases of the device product. UEP has been developed and used by engineers across departments in the St. Jude Medical Cardiac Rhythm Management Division (CRMD). This thesis covers the flexible and reusable …
Methodology To Convert A Transportation Planning Origin-Destination Matrix Into A Microscopic Traffic Simulation Origin-Destination Matrix, Jose Osiris Vidana-Bencomo
Methodology To Convert A Transportation Planning Origin-Destination Matrix Into A Microscopic Traffic Simulation Origin-Destination Matrix, Jose Osiris Vidana-Bencomo
Open Access Theses & Dissertations
Microscopic traffic simulation (MTS) is a cost-effective approach for the evaluation of traffic conditions in urban highways networks. In MTS models, traffic demand that is entered into the network is specified by one or several Origin-Destination (O-D) matrices. A major challenge in the application of MTS for large urban networks is the specification of the O-D matrices. This dissertation proposes a methodology that may be used to transform a O-D matrix from a transportation planning model (which is based on Traffic Analysis Zone, or TAZ, and is readily available) into a O-D matrix for a MTS model (which is traffic …
Material And Energy Flow Analysis Of The Irish Construction Sector, Rachel Woodward
Material And Energy Flow Analysis Of The Irish Construction Sector, Rachel Woodward
Theses
A national flow model for concrete was developed using the framework of material and energy flow analysis. Using this framework, the Irish concrete material and energy cycles for the year 2007 were constructed by firstly analysing the material life cycle of concrete which consists of the three phases of production (including extraction of raw materials and manufacture of cement), usage into stock (ready-mix and other concrete products), and waste management. In this year, approximately 35Mt of raw materials were extracted to produce both 5Mt of cement and 33Mt of concrete, with 4.5Mt of cement going into the production of concrete. …