Environmental Design Commons^™

Embankment Settlement In Bangladesh: A Study On The Self-Generated Pattern Of Vernacular Architecture, Masud Ur Rashid, Naimul Aziz

NAKHARA (Journal of Environmental Design and Planning)

Due to the erosion caused by the aggressive river Jamuna in Sirajganj, Bangladesh, every year many villagers have move their homes. The poor, who cannot afford land at a safe distance fromthe aggressive river, generally move to the nearby fl ood protection embankment. Without any land ownership, the embankment settlement in some ways appears as a 'rural slum.' But the embankment settlement differs from traditional rural architecture. Scarcity of land and strong linear direction of the embankment control the total organization of the settlement. This paper is focused on the unique features of fl ood embankment settlement as a self …

Thermal Comfort In The Traditional Rural Bangladesh House, Rumana Rashid, Mohd. Hamdan Bin Ahmed, Sayem Khan

NAKHARA (Journal of Environmental Design and Planning)

Bangladesh Traditional House (BTH) is considered to be a prime example of environmental design responses to regional conditions. The house forms, building styles and materials used in construction have signifi cant variations in different areas of Bangladesh, but one element in common is the design concept for the upper space. The upper space of BTH plays a vital role with diurnal variation of ambient environment to provide comfortable interiors. This paper analyses the above hypothesis in the traditional stilt house in the city of Dhaka. The analysis of actual performance of the traditional house may provide information on the effectiveness …

The Architecture Of Batak Toba: An Expression Of Living Harmoniously, Himasari Hanan, Surjamanto Wonorahardjo

NAKHARA (Journal of Environmental Design and Planning)

Batak Toba people have a fi gurative imagination through which they orientate themselves to nature and the surrounding landscape. The architecture of the house is created to create a beautiful fi gure in the natural landscape as well as to act in moderating warm-humid climate. Dramatic roof forms have been developed as an expression of this culturally determined sensitivity towards natural forces and practical wisdom towards thermal comfort. Building a house deals with human needs within a structure of static and living components from the environment. Aesthetic qualities emerge genuinely out of the adaptive process within the corresponding multidimensional aspects …

Ecological Architecture With Vernacular Character: Contemporary Mud Architecture Practices In Bangladesh, Rumana Afroz, Mohammad Zakaria Ibne Razzaque

NAKHARA (Journal of Environmental Design and Planning)

The vernacular construction technique of mud architecture in Bangladesh has been in practice for a long time and forms a major part of rural buildings. However, a lack of formal practice and patronagehas allowed the vernacular techniques to be neglected. Thus the indigenous architecture appears as incompatible with mainstream development and modern knowledge. Therefore, support is necessary to sustain vernacular mud architecture. This paper examines an internationally awarded case study where modern knowledge and ecological building techniques have been initiated as an inter-cultural initiative of mud architecture to improve the current situation. This paper intends to critically investigate how far …

Suburban Self-Suffi Cient Living: An Implementation Of The Philosophy Of Suffi Ciency Economy, Sirimas Hengrasmee

NAKHARA (Journal of Environmental Design and Planning)

Sufficiency signals a combination of having enough and being satisfi ed. In Thailand, the idea of sufficiency has been reintroduced as the philosophy of Sufficiency Economy. Self-reliance and self-sufficiency are playing a big part of its implementation. This paper suggests a hypothetical adaptation of suburban lifestyles under such philosophy, where the immediate environment of the house is considered the main source for exploitation of food, water, and energy. It illustrates the possibility of being more self-reliant at a household level. The link between outcomes and the reduction of environmental impacts through simple Ecological Footprint estimation affirms that practice of self-sufficiency …

Study On The Fire-Protection: Characteristics Of Green Spaces In Central Sakai City, Misato Kagioka, Yuji Hara, Kazuaki Tsuchiya

NAKHARA (Journal of Environmental Design and Planning)

The purpose of this study is to include among close-at-hand shelter zones urban green spaces other than parks, and to examine the safety that those spaces provide against fi res in terms of lot size,tree coverage ratio, and the fi re-protection functions of trees. For our study we chose the district in Sakai City, Osaka Prefecture. This study found that because the tree coverage ratio, which affects a shelter zone's defense against fi re, is changed by the effect of the tree canopy and not by lot size, it is necessary to use methods which ensure a good crown spread, …

City Of Water:Architecture, Urbanism And The Floods Of Phnom Penh, Shelby Elizabeth Doyle

NAKHARA (Journal of Environmental Design and Planning)

The following is a summary of ongoing research conducted in 2011-2012, funded in part by the Fulbright Program and entitled City of Water: Architecture, Urbanism and the Floods of Phnom Penh. This work documents the relationships between water, architecture, and infrastructure in Phnom Penh, Cambodia. The objective of the project is to record the architectural and urban conditions sustained by and subject to the cyclical fl oods of the city's rivers and the challenges faced by Phnom Penh as it rapidly urbanizes in a fl ood plain.

Edra 43: Bibliography Of Books On Display, Kathleen Demsky

Bibliographies

edra 43 | Emergent Placemaking | Seattle, WA

Effects Of Roof Pitch On Air Flow And Heating Load Of Sealed And Vented Attics For Gable-Roof Residential Buildings, Shimin Wang, Zhigang Shen

Durham School of Architectural Engineering and Construction: Faculty Publications

Pitch value is an important consideration in residential gable roof design and construction. However, how roof pitch, coupled with air flows in attic space, affects the energy performance of building attics has been barely investigated. In this paper, a 2D unsteady computational fluid dynamics (CFD) model is employed to investigate the effects of roof pitch on air flow and heating load of both sealed and vented attics for gable-roof residential buildings. The simulation results show that air flow in the sealed attics is steady and asymmetric, while that in the vented attics is a combination of an essentially symmetric base …

Effects Of Inclusion Shapes Within Rigid Porous Materials On Acoustic Performance, Hyun Hong, Siu-Kit Lau

Durham School of Architectural Engineering and Construction: Faculty Publications

The present study investigates the influence of various shapes of inclusions having same volume embedded in a porous rigid material. Previous studies showed improvement of the broadband sound absorption with particular shapes of inclusions. However, different volumes of the inclusions have been considered; therefore, the bulk densities are not the same for comparison. The present study extends the investigations of inclusions in porous materials with same volume (or bulk density) to eliminate the influence by the change of bulk density. The effects of shape will be discussed. Finite element modeling will be used for this study. Total four different shapes: …

Impacts Of Ventilation Ratio And Vent Balance On Cooling Load And Air Flow Of Naturally Ventilated Attics, Shimin Wang, Zhigang Shen

Durham School of Architectural Engineering and Construction: Faculty Publications

The impacts of ventilation ratio and vent balance on cooling load and air flow of naturally ventilated attics are studied in this paper using an unsteady computational fluid dynamics (CFD) model. Buoyancy-driven turbulent ventilations in attics of gable-roof residential buildings are simulated for typical summer conditions. Ventilation ratios from 1/400 to 1/25 combined with both balanced and unbalanced vent configurations are investigated. The modeling results show that the air flows in the attics are steady and exhibit a general streamline pattern that is qualitatively insensitive to the variations in ventilation ratio and vent configuration. The predicted temperature fields are characterized …

The Impact Of Roof Pitch And Ceiling Insulation On Cooling Load Of Naturally-Ventilated Attics, Shimin Wang, Zhigang Shen, Linxia Gu

Durham School of Architectural Engineering and Construction: Faculty Publications

A 2D unsteady computational fluid dynamics (CFD) model is employed to simulate buoyancy-driven turbulent ventilation in attics with different pitch values and ceiling insulation levels under summer conditions. The impacts of roof pitch and ceiling insulation on the cooling load of gable-roof residential buildings are investigated based on the simulation of turbulent air flow and natural convection heat transfer in attic spaces with roof pitches from 3/12 to 18/12 combined with ceiling insulation levels from R-1.2 to R-40. The modeling results show that the air flows in the attics are steady and exhibit a general streamline pattern that is qualitatively …

Development And Evaluation Of A Simplified Modeling Approach For Hydraulic Systems, Yuebin Yu, Vivian Loftness, Daihong Yu, Yan Lu, Volker Hartkopf

Durham School of Architectural Engineering and Construction: Faculty Publications

This paper presents how a hydraulic system can be properly modeled for hydraulic balancing, knowledge of flow distribution, coupled simulation, and evaluation of control, etc. It focuses on water-based heating and cooling systems, which generally have high energy efficiency in design but could perform poorly in reality due to the undersensing condition and strong thermal-hydraulic coupling. The study introduces the motivation, presents the simplified modeling methodology, and illustrates the model and simulating structure. A preliminary evaluation of the method is conducted with two simple simulations. The proposed “node-branch-state” modeling approach could be easily modified, expanded and integrated into a detailed …

Team Las Vegas Solar Decathlon 2013: Quickfacts, University Of Nevada, Las Vegas. Solar Decathlon Team.

DesertSol: Planning and Design

This is a promotional pamphlet designed by Team Las Vegas for the 2013 Solar Decathlon competition. The pamphlet was used to gain support for the project and to offer some "quick facts" about the team, the project, and the competition.

Desertsol: Sponsorship Packet, University Of Nevada, Las Vegas. Solar Decathlon Team.

DesertSol: Planning and Design

This is the Sponsorship Packet created by Team Las Vegas for the DesertSol project house to gain financial support fromLas Vegas community partner. The packet provides details on the mission and vision of theDesertSol project, the competition, and how sponsors can help the team.

Desertsol: Promotional Flyer, University Of Nevada, Las Vegas. Solar Decathlon Team.

DesertSol: Planning and Design

This is a promotional flyer prepared by Team Las Vegas to gain support in the Las Vegas community for the DesertSol project. The document contains brief information about the DOE 2013 Solar Decathlon competition and about Team Las Vegas.

Ecological Payback Time Of An Energy-Efficient Modular Building, Jeremy Faludi, Michael Lepech

Dartmouth Scholarship

Ecological payback time was calculated for demolishing an existing commercial building with average energy performance and replacing it with an energy-efficient, prefabricated building. A life-cycle assessment was performed for a 5,000 ft2 commercial building designed by Project Frog and prefabricated in San Francisco, California, and compared to the impacts of annual energy consumption and continued status quo operation of a comparable average commercial building. Scenarios were run both with and without rooftop solar panels intended to make the prefabricated building net zero energy. The analysis considers the materials and mof the existing building, compared to continued annual energy use of …

An Empirical Study Of Particulate Matter Exposure For Transit Users At Bus Stop Shelters, Adam Moore

Dissertations and Theses

Congested traffic corridors in dense urban areas are key contributors to the degradation of urban air quality. While waiting at bus stops, transit patrons may be exposed to greater amounts of vehicle-based pollution, including particulate matter, due to their proximity to the roadway. Current guidelines for the location and design of bus stops do not take into account air quality or exposure considerations. This thesis provides a unique contribution to roadside air quality studies and presents an innovative method for the consideration of bus shelter placement. Exposure to roadside pollutants is estimated for transit riders waiting at three-sided bus stop …

Mathematical Modelling Of A Low Approach Evaporative Cooling Process For Space Cooling In Buildings, Medhi Nasrabadi, Donal Finn, Ben Costelloe

Conference Papers

This paper describes a mathematical model of a low approach open evaporative cooling tower for the production of high temperature indirect cooling water (14-16°C) for use in building radiant cooling and displacement ventilation systems. There are several potential approaches to model evaporative cooling, including: the Poppe method, the Merkel method and the effectiveness-NTU (ε-NTU) method. A common assumption, applied to the Merkel and ε-NTU methods, is that the effect of change in tower water mass flow rate due to evaporation is ignored, which results in a simpler model with reduced computational requirements, but with somewhat decreasedaccuracy. In this paper, a …

Experiential Interior Design: Branding Entertainment And Nightlife For The Postmodern Young Urban Professional, Niccole S. Skomal

Architecture Masters of Science Program: Theses

Past study on Interior Design has been primarily looked at through the lenses of aesthetics and functionality. Only recently have scholars begun to see the influence marketing, in the form of branding, can have on the Interior Design process in targeting specific lifestyle groups. The purpose of this research is to understand the fabric of the postmodern Young Urban Professional lifestyle as a marketing tool for branding and designing services in the form of entertainment and nightlife. With an increasing lack of community and social connectedness in today’s postmodern society, Young Urban Professionals tend to consume entertainment and nightlife as …

Exploratory Case Study: How The Inclusion Of Nature In The Design Of Learning Environments Affects Learning Among Children, Cheryl Knodel

Interior Design Program: Student Creative Activity

The theoretical framework of Stephen R. Kellert linking nature and the built environment was used as the basis for this research. This case study research was conducted to describe the effect nature had on learning among children 3 to 6 years of age attending two north central Florida Montessori learning environments. Methods were examined by which this phenomenon might be studied in more detail in order to: (a) provide verification of the independent and dependent variables, (b) establish the empirical measure of learning outcomes, and (c) provide the refinement of the variable learning outcomes as influenced by nature.

A qualitative …

Factors That Cause Growth And Development In The City Of Lincoln, Ne, Kaylene Tegtmeier

Department of Environmental Studies: Undergraduate Student Theses

This qualitative study looks at what factors may contribute to the outward growth and development of the city of Lincoln, Nebraska. The two main factors the study discusses are the Lincoln Public School planners and their placement of schools in the city, and the “American dream” of the people, looking at where the people of Lincoln want to be living throughout the city and what some of their daily habits are. This study also discusses some of the main visions of the city of Lincoln’s 2040 Comprehensive Plan how the plan’s ambitions may affect the two factors looked at in …

A Health Impact Assessment Of Mixed Use Redevelopment Nodes And Corridors In Lincoln, Nebraska, Katie Clear

Department of Environmental Studies: Undergraduate Student Theses

Obesity is a growing threat to America’s health. The national rate of obesity is 34% (Health Consequences, 2011), and Lincoln, Nebraska is not far behind that trend at 20.7% (BRFSS, 2011). Increasing physical activity is one way to reduce weight gain, (Edwards, 2008) and further studies show that small changes to the built environment can induce people to use alternative and more active forms of transportation such as biking, walking, and public transportation (Edwards, 2008; Zheng, 2008). The 2040 Comprehensive Plan for Lincoln, NE includes language to create a more walkable community. The proposal is to redevelop existing areas within …

Life Cycle Costing Template (Excel), Dermot Kehily

Reports

No abstract provided.

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 …

The Urban Fabric Of The Great Plains, Andrew Becker

Department of Environmental Studies: Undergraduate Student Theses

To most Americans the Great Plains region of North America is mysterious place. There are disagreements when defining its limits, and some people just refer to it as the Midwest. The Great Plains has been a place under an ocean, a place under glaciers, and a place on fire. It was once dubbed “the Great American Desert,” but is now known for its agricultural viability. The Great Plains sparks imagination because it is so massive and was one of the final frontiers for Euro-American settlement. The Great Plains is seen as a rural place but the majority of the region’s …

Residential Water Conservation: A Cross Comparative Analysis, Jeffrey M. Cook

Master's Theses

This thesis will explore different water conservation strategies and systems in the residential home, using the city of Irvine as a basis. The thesis will compare the financial implications between the different systems and as a return on investment. The analysis will also account for ecological and social implications on the occupants, in particular their standard of living and lifestyle changes. The thesis will explore the ability to conserve water in new residential construction and will provide a sustainable and conscientious schematic water design for the particular area of concern.

This thesis will act as a preliminary case study for …

The Autonomy House: Team Las Vegas Conceptual Design, University Of Nevada, Las Vegas. Solar Decathlon Team.

DesertSol: Planning and Design

An overview of a net-zero energy concept house developed for the 2013 Solar Decathlon. Document uses original project name "Autonomy House".

Team Las Vegas Solar Decathlon 2013: Technical Proposal, University Of Nevada, Las Vegas. Solar Decathlon Team.

DesertSol: Planning and Design

Team Las Vegas is proposing an elegant, sustainable, and innovative home design that aims to be net zero energy as part of participation in the 2013 Solar Decathlon supported by the Department of Energy and the National Renewable Energy Laboratory (NREL). The home will be constructed and tested at the 2013 Solar Decathlon competition at a location to be determined by NREL. Imagine a home that captures energy instead of reflecting sunlight; one that filters rainwater and sequesters carbon in its vegetation and soils; one that actually gives back to the ecosystem in which it resides, and supports sustainability for …

Walking Box Ranch Planning And Design Quarterly Progress Report: Period Ending October 10, 2011, Margaret N. Rees

Walking Box Ranch

• UNLV participated in two meetings with BLM regarding updating the current Task Order, obtaining a two-year no-cost extension for the two Assistance Agreements, and to develop the future WBR operating agreement between BLM and UNLV.
• Weather station progress included: 1) A study to review the recent developments in various building envelope components and their effects on the energy sustainability of a building has been completed and published, 2) Ground-source heat pump (GSHP) Vs Photovoltaic (PV) technology: A detailed comparison of ground source heat pumps and photo voltaics has been initiated, 3) A study to identify the most suitable and economically …