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Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Water Conservation with Urban Landscape Plants  

E-Print Network [OSTI]

Water shortages are a common problem in much of the southwest. Increasing urbanization and increasing population places greater demands on dwindling water supplies. Over half of the water used in urban areas of the southwest is used...

Hip, B. W.; Giordano, C.; Simpson, B.

2

Urban Water Conservation along the Rio Grande  

E-Print Network [OSTI]

Urban Water Conservation along the Rio Grande THE TEXAS A&M UNIVERSITY SYSTEM NEW MEXICO STATE UNIVERSITY An Inventory of Water Conservation Programs TR 269 SP 201 Valeen Silvy, 1 Ronald Kaiser, 2 Bruce Lesikar 3 and Craig Runyan... water running into the streets from irrigation systems. Urban water conservation incorporates water- saving measures and incentives for the home, on the landscape and throughout the city water distribution system. It is easy to differentiate be...

Silvey, Valeen; Kaiser, Ronald; Lesikar, Bruce; Runyan, Craig

2004-01-01T23:59:59.000Z

3

Water Cycle Pilot Study  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and Materials Disposition Information WastetheInnovation1 Water

4

Eberhard Morgenroth 1 Urban Water Management  

E-Print Network [OSTI]

dynamic field Worldwide 2'500 Mio. people don't have access to clean water and sanitation. 200'000 km. Semester MS Project Internship 4. Semester Master Thesis Elective courses Sanitation Planning Tomography and Quantitative Image Analysis A concept for providing a sanitary system to the urban poor

Giger, Christine

5

On Parameter Estimation of Urban Storm-Water Runoff Model  

E-Print Network [OSTI]

On Parameter Estimation of Urban Storm-Water Runoff Model Pedro Avellaneda1 ; Thomas P. Ballestero2 of these parameters are provided for modeling purposes and other urban storm-water quality applications. A normal runoff models are commonly used for urban storm-water quality applications DeCoursey 1985; Tsi- hrintzis

6

Methodology for Assesment of Urban Water Planning Objectives  

E-Print Network [OSTI]

TR-51 1973 Methodology for Assessment of Urban Water Planning Objectives W.L. Meier B.M. Thornton Texas Water Resources Institute Texas A&M University ...

Meier, W. L.; Thornton, B. M.

7

Integrated Planning and Management for Urban Water Supplies  

E-Print Network [OSTI]

Positions for Water Supply Reliability ................................. 15 4 Shortage Management Modeling.2: Diagram of Water Supply Reliability Model Structure ..................49 5.3: Steps Used in ShortageIntegrated Planning and Management for Urban Water Supplies Considering Multiple Uncertainties Jay

Pasternack, Gregory B.

8

Researcher explores economics of U.S. urban water demand  

E-Print Network [OSTI]

Story by Kathy Wythe tx H2O | pg. 24 Researcher explores economics of U.S. urban water demand Photo by: Danielle Supercinski tx H2O | pg. 25 With projected demands for future water supplies becoming more critical, understand- ing urban... contributing to urban water demand in the United States. They analyzed how water use is affected by water prices in nearly 200 U.S. cities. ?It?s interesting that many people still buy into the myth that water demand is not price- sensitive, even though...

Wythe, Kathy

2009-01-01T23:59:59.000Z

9

Geothermal Water Use: Life Cycle Water Consumption, Water Resource Assessment, and Water Policy Framework  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

This report examines life cycle water consumption for various geothermal technologies to better understand factors that affect water consumption across the life cycle (e.g., power plant cooling, belowground fluid losses) and to assess the potential water challenges that future geothermal power generation projects may face. Previous reports in this series quantified the life cycle freshwater requirements of geothermal power-generating systems, explored operational and environmental concerns related to the geochemical composition of geothermal fluids, and assessed future water demand by geothermal power plants according to growth projections for the industry. This report seeks to extend those analyses by including EGS flash, both as part of the life cycle analysis and water resource assessment. A regional water resource assessment based upon the life cycle results is also presented. Finally, the legal framework of water with respect to geothermal resources in the states with active geothermal development is also analyzed.

Schroeder, Jenna N.

10

Geothermal Water Use: Life Cycle Water Consumption, Water Resource Assessment, and Water Policy Framework  

SciTech Connect (OSTI)

This report examines life cycle water consumption for various geothermal technologies to better understand factors that affect water consumption across the life cycle (e.g., power plant cooling, belowground fluid losses) and to assess the potential water challenges that future geothermal power generation projects may face. Previous reports in this series quantified the life cycle freshwater requirements of geothermal power-generating systems, explored operational and environmental concerns related to the geochemical composition of geothermal fluids, and assessed future water demand by geothermal power plants according to growth projections for the industry. This report seeks to extend those analyses by including EGS flash, both as part of the life cycle analysis and water resource assessment. A regional water resource assessment based upon the life cycle results is also presented. Finally, the legal framework of water with respect to geothermal resources in the states with active geothermal development is also analyzed.

Schroeder, Jenna N.

2014-06-10T23:59:59.000Z

11

Selection of Native Wetland Plants for Water Treatment of Urban Runoff  

E-Print Network [OSTI]

UC Davis KEYWORDS: Wetlands, Water Treatment, Urban Runoff,of Native Wetland Plants for Water Treatment of UrbanValley Wetlands Biomass Response to Heavy Metal Treatment

Rejmankova, Eliska; Bayer, David E

1995-01-01T23:59:59.000Z

12

publication 426-042 Urban Water-Quality Management  

E-Print Network [OSTI]

publication 426-042 Urban Water-Quality Management Winterizing the Water Garden Lynnette Swanson. Prepare the pond for the winter months by managing the plants, cleaning the pond, and monitoring the water Traci Gilland, Extension Agent, Portsmouth Water gardens require maintenance throughout the year

Liskiewicz, Maciej

13

Complex Adaptive Systems Simulation-Optimization Framework for Adaptive Urban Water Resources Management  

E-Print Network [OSTI]

Population growth, urbanization and climate change threaten urban water systems. The rise of demands caused by growing urban areas and the potential decrease of water availability caused by the increase of frequency and severity of droughts...

Giacomoni, Marcio

2012-10-19T23:59:59.000Z

14

Multi-cycle boiling water reactor fuel cycle optimization  

SciTech Connect (OSTI)

In this work a new computer code, BWROPT (Boiling Water Reactor Optimization), is presented. BWROPT uses the Parallel Simulated Annealing (PSA) algorithm to solve the out-of-core optimization problem coupled with an in-core optimization that determines the optimum fuel loading pattern. However it uses a Haling power profile for the depletion instead of optimizing the operating strategy. The result of this optimization is the optimum new fuel inventory and the core loading pattern for the first cycle considered in the optimization. Several changes were made to the optimization algorithm with respect to other nuclear fuel cycle optimization codes that use PSA. Instead of using constant sampling probabilities for the solution perturbation types throughout the optimization as is usually done in PSA optimizations the sampling probabilities are varied to get a better solution and/or decrease runtime. The new fuel types available for use can be sorted into an array based on any number of parameters so that each parameter can be incremented or decremented, which allows for more precise fuel type selection compared to random sampling. Also, the results are sorted by the new fuel inventory of the first cycle for ease of comparing alternative solutions. (authors)

Ottinger, K.; Maldonado, G.I. [University of Tennessee, 311 Pasqua Engineering Building, Knoxville, TN 37996-2300 (United States)

2013-07-01T23:59:59.000Z

15

The DOE Water Cycle Pilot Study  

SciTech Connect (OSTI)

A Department of Energy (DOE) multi-laboratory Water Cycle Pilot Study (WCPS) investigated components of the local water budget at the Walnut River Watershed in Kansas to study the relative importance of various processes and to determine the feasibility of observational water budget closure. An extensive database of local meteorological time series and land surface characteristics was compiled. Numerical simulations of water budget components were generated and, to the extent possible, validated for three nested domains within the Southern Great Plains; the DOE Atmospheric Radiation Measurement/Cloud Atmospheric Radiation Testbed (ARM/CART), the Walnut River Watershed (WRW), and the Whitewater Watershed (WW), Kansas A 2-month Intensive Observation Period (IOP) was conducted to gather detailed observations relevant to specific details of the water budget, including fine-scale precipitation, streamflow, and soil moisture measurements not made routinely by other programs. Event and season al water isotope (delta 18O, delta D) sampling in rainwater, streams, soils, lakes, and wells provided a means of tracing sources and sinks within and external to the WW, WRW, and the ARM/CART domains. The WCPS measured changes in leaf area index for several vegetation types, deep groundwater variations at two wells, and meteorological variables at a number of sites in the WRW. Additional activities of the WCPS include code development toward a regional climate model with water isotope processes, soil moisture transect measurements, and water level measurements in ground water wells.

Miller, N.L.; King, A.W.; Miller, M.A.; Springer, E.P.; Wesely, M.L.; Bashford, K.E.; Conrad, M.E.; Costigan, K.; Foster, P.N.; Gibbs, H.K.; Jin, J.; Klazura, J.; Lesht, B.M.; Machavaram, M.V.; Pan, F.; Song, J.; Troyan, D.; Washington-Allen, R.A.

2003-09-20T23:59:59.000Z

16

NFWF Five Star & Urban Waters Restoration Program  

Broader source: Energy.gov [DOE]

The National Fish and Wildlife Foundation (NFWF) is accepting applications for up to $2.1 million to develop community capacity to sustain local natural resources for future generations by providing modest financial assistance to diverse local partnership for wetland, riparian, forest and coastal habitat restoration, urban wildlife conservation, stormwater management as well as outreach, education and stewardship.

17

Urban Sodicity in a Humid Subtropical Climate: Impact on Biogeochemical Cycling  

E-Print Network [OSTI]

Understanding the mechanisms of non-point source carbon and nutrients in urban watersheds will help to develop policies to maintain surface water quality and prevention of eutrophication. The purpose of this dissertation is to investigate...

Steele, Meredith Kate

2012-10-19T23:59:59.000Z

18

Sandia National Laboratories: Integrated Water Cycle  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit atVehicleEnergy InfrastructureIntegrated Water Cycle

19

Feasibility of rainwater harvesting for urban water management in Salt Lake City.  

E-Print Network [OSTI]

??Water managers in the western United States are being challenged by rapid urban growth and limited water availability. The development of new water resources is… (more)

Jensen, Mark A

2008-01-01T23:59:59.000Z

20

EAR methodology: an approach to Sustainable Urban Water Management D.Granger*, F. Cherqui **, B. Chocat***  

E-Print Network [OSTI]

EAR methodology: an approach to Sustainable Urban Water Management D.Granger*, F. Cherqui **, B ***LGCIE, INSA-Lyon, Université de Lyon, F-69621, France Keywords: sustainable urban water management (SUWM become much more than a simple removal of storm-water and sewage out of the city. Urban water management

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Highly efficient 6-stroke engine cycle with water injection  

DOE Patents [OSTI]

A six-stroke engine cycle having improved efficiency. Heat is recovered from the engine combustion gases by using a 6-stroke engine cycle in which combustion gases are partially vented proximate the bottom-dead-center position of the fourth stroke cycle, and water is injected proximate the top-dead-center position of the fourth stroke cycle.

Szybist, James P; Conklin, James C

2012-10-23T23:59:59.000Z

22

Sustainable Urban Water Management James P. Heaney, Len Wright, and David Sample  

E-Print Network [OSTI]

3-1 Chapter 3 Sustainable Urban Water Management James P. Heaney, Len Wright, and David Sample sustainable urban water management systems. Systems View of Urban Water Management The mid 1960's were and environmental management during the 1960's and 1970's because of strong federal support for research, a national

Pitt, Robert E.

23

Atmosphere-Water Interaction of Chloroform, Toluene, and MTBE in Small Perennial Urban Streams  

E-Print Network [OSTI]

Atmosphere-Water Interaction of Chloroform, Toluene, and MTBE in Small Perennial Urban Streams-butyl ether (MTBE) are frequently detected VOCs in the atmosphere, surface water, and ground water in urban not be the predominant source of chloroform and toluene in the two urban streams. In contrast, MTBE may be coming from

24

Estimating Water Quality Pollution Impacts Based on Economic Loss Models in Urbanization Process  

E-Print Network [OSTI]

Estimating Water Quality Pollution Impacts Based on Economic Loss Models in Urbanization Process Abstract: The study investigates water quality pollution impacts on urbanization by analyzing temporal, more populations were moved from rural area into urban area, and more costs were input in water quality

Yu, Qian

25

Stormwater and Urban Water Systems Modeling Conference. In: Models and Applications to Urban Water Systems, Vol. 12 (edited by W. James). CHI. Guelph, Ontario, pp. 257 294. 2004.  

E-Print Network [OSTI]

Stormwater and Urban Water Systems Modeling Conference. In: Models and Applications to Urban Water AND EXAMINATION OF A MUNICIPAL SEPARATE STORM SEWER SYSTEM DATABASE Robert Pitt, Alex Maestre, Renee Morquecho of Water 104(b)3 grant in 2001 to collect and evaluate stormwater data from a representative number

Pitt, Robert E.

26

Rethinking the light water reactor fuel cycle  

E-Print Network [OSTI]

The once through nuclear fuel cycle adopted by the majority of countries with operating commercial power reactors imposes a number of concerns. The radioactive waste created in the once through nuclear fuel cycle has to ...

Shwageraus, Evgeni, 1973-

2004-01-01T23:59:59.000Z

27

Natural streamflow cycles and effects on water supply reliability  

E-Print Network [OSTI]

ABSTRACT Natural Streamf low Cycles and Effects on Water Supply Reliability. (August 2002) Fabrice Felden, Diploma de I'Ecole Speciale des Travaux Publics Chair of Advisory Committee: Dr. Ralph A. Wurbs The Texas Natural Resource Conservation... and cycles in streamflows that could be directly correlated to climate changes. The presence of trends and/or cycles in streamflows is primarily studied to assess the significance of not directly considering climate change in the Texas Water Availability...

Felden, Fabrice

2002-01-01T23:59:59.000Z

28

Valuing the Environmental Benefits of Urban WaterConservation  

SciTech Connect (OSTI)

This report documents a project undertaken for theCalifornia Urban Water Conservation Council (the Council) to create a newmethod of accounting for the diverse environmental benefits of raw watersavings. The environmental benefits (EB) model was designed to providewater utilities with a practical tool that they can use to assign amonetary value to the benefits that may accrue from implementing any ofthe Council-recommended Best Management Practices. The model treats onlyenvironmental services associated directly with water, and is intended tocover miscellaneous impacts that are not currently accounted for in anyother cost-benefit analysis.

Coughlin, Katie M.; Bolduc, Chris A.; Chan, Peter T.; Dunham-Whitehead, C.; Van Buskirk, R.D.

2007-05-01T23:59:59.000Z

29

Geosynthetic Filters for Water Quality Improvement of Urban Storm Water Runoff  

E-Print Network [OSTI]

water treatment are retention ponds, detention basins, wetland ponds, and grass swales (Strecker et al are common subsurface storm water runoff treatment systems used in urban areas. Large subsurface fil- ters the treatment system (SEMCOG 2008). Removal of filtration media such as sand is highly labor

Aydilek, Ahmet

30

WATER POVERTY IN THE PERI-URBAN TERRITORIES OF MUMBAI, INDIA  

E-Print Network [OSTI]

1 WATER POVERTY IN THE PERI-URBAN TERRITORIES OF MUMBAI, INDIA Anastasia Angueletou Ph.D. student addresses water poverty in the peri-urban areas of Mumbai1 . The term "water poverty" refers to a variety of situations where people lack from sufficient water in terms of quality and quantity or from enough money

Paris-Sud XI, Université de

31

On-line Hydraulic State Estimation in Urban Water Networks Using Reduced Models  

E-Print Network [OSTI]

A Predictor-Corrector (PC) approach for on-line forecasting of water usage in an urban water system is presented and demonstrated. The M5 Model-Trees algorithm is used to predict water demands and Genetic Algorithms (GAs) ...

Preis, Ami

32

Ch.9 Water Resources ! Hydrologic cycle  

E-Print Network [OSTI]

Energy Balance G Ts Td H LE Q t = Rn - LE - H - G where Q/t is the heat storage change of soil column in the liquid or solid phase at or near the land surface becomes water vapor. Water Bare soil Vegetated of the water molecules to a solid surface (e.g., soil or glass). #12;A simple soil-water-balance equation

Pan, Feifei

33

Life Cycle Assessment of Three Water Scenarios  

E-Print Network [OSTI]

Standards Organization, SETAC, US EPA · Inventory of material and energy required for a product or process on portion of total water received (3%) #12;Reclamation: Scottsdale Reclaims wastewater for use (Reclaimed Plant) Wastewater treatment, advanced water treatment, and groundwater recharge and extraction

Keller, Arturo A.

34

The World Bank Indian Urban Water Report (July 2012) Yet Again, Thinking Backwards  

E-Print Network [OSTI]

on reform in the urban water sector in India. This WB report focuses on institutional and financial reform. These reports have largely set the framework within which administrators, elected representatives of the agenda for the reform of the urban water supply sector, as the WB sees it. The current report

Sohoni, Milind

35

Climate change versus urban drinking water supply and management: a case analysis on the coastal  

E-Print Network [OSTI]

Informatics, Brandenburg University of Technology at Cottbus, P.O. Box. 101344, D-03013 Cottbus, GERMANY (E-mail: shafinoor@yahoo.com; ishafin@yahoo.com) Abstract Clean urban drinking water supply is now a crucial problem; management. INTRODUCTION Clean urban drinking water supply is now a global problem, and most of the countries

Paris-Sud XI, Université de

36

Sustainable Management of Biogeochemical Cycles in Soils Amended with Bio-Resources from Livestock, Bioenergy, and Urban Systems  

E-Print Network [OSTI]

iii SUSTAINABLE MANAGEMENT OF BIOGEOCHEMICAL CYCLES IN SOILS AMENDED WITH BIO-RESOURCES FROM LIVESTOCK, BIOENERGY, AND URBAN SYSTEMS A Dissertation by RONNIE WAYNE SCHNELL Submitted to the Office of Graduate Studies of Texas A...-RESOURCES FROM LIVESTOCK, BIOENERGY, AND URBAN SYSTEMS A Dissertation by RONNIE WAYNE SCHNELL Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY...

Schnell, Ronnie Wayne

2011-10-21T23:59:59.000Z

37

8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource or risks? 13-16 May 2008  

E-Print Network [OSTI]

support systems; sustainable development; developing countries. INTRODUCTION Urban water provision poses prevention, complicate the urban water system's environment. In this context, facing the challenges8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource

Boyer, Edmond

38

Efficient Hydraulic State Estimation Technique Using Reduced Models of Urban Water Networks  

E-Print Network [OSTI]

This paper describes and demonstrates an efficient method for online hydraulic state estimation in urban water networks. The proposed method employs an online predictor-corrector (PC) procedure for forecasting future water ...

Preis, Ami

39

Interdependent infrastructures and multi-mode attacks and failures: improving the security of urban water systems and fire response  

E-Print Network [OSTI]

This dissertation examines the interdependence between urban water distribution systems and urban fire response. The focus on interdependent critical infrastructures is driven by concern for security of water systems and the effects on related...

Bristow, Elizabeth Catherine

2009-05-15T23:59:59.000Z

40

Presented at: 2000 Conference on Stormwater and Urban Water Systems Modeling (Feb 24-25, Toronto, Ontario). Published in: Models and Applications to Urban Water Systems, Monograph 9. Edited by William James, CHI,  

E-Print Network [OSTI]

1 Presented at: 2000 Conference on Stormwater and Urban Water Systems Modeling (Feb 24-25, Toronto, Ontario). Published in: Models and Applications to Urban Water Systems, Monograph 9. Edited by William organic and metallic toxicants in urban storm-induced discharges that can contribute to receiving water

Pitt, Robert E.

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

december 1, 2012 vol xlviI nos 47 & 48 EPW Economic & Political Weekly22 World Bank's Urban Water  

E-Print Network [OSTI]

's Urban Water Report on India Thinking Backwards Milind Sohoni The latest World Bank report on reform, with the reports of 2006 and 2012, urban water reform. These reports have largely set the framework within which of the agenda for the reform of the urban water supply sector, as the WB sees it. The current report

Sohoni, Milind

42

Solar High Temperature Water-Splitting Cycle with Quantum Boost  

SciTech Connect (OSTI)

A sulfur family chemical cycle having ammonia as the working fluid and reagent was developed as a cost-effective and efficient hydrogen production technology based on a solar thermochemical water-splitting cycle. The sulfur ammonia (SA) cycle is a renewable and sustainable process that is unique in that it is an all-fluid cycle (i.e., with no solids handling). It uses a moderate temperature solar plant with the solar receiver operating at 800°C. All electricity needed is generated internally from recovered heat. The plant would operate continuously with low cost storage and it is a good potential solar thermochemical hydrogen production cycle for reaching the DOE cost goals. Two approaches were considered for the hydrogen production step of the SA cycle: (1) photocatalytic, and (2) electrolytic oxidation of ammonium sulfite to ammonium sulfate in aqueous solutions. Also, two sub-cycles were evaluated for the oxygen evolution side of the SA cycle: (1) zinc sulfate/zinc oxide, and (2) potassium sulfate/potassium pyrosulfate. The laboratory testing and optimization of all the process steps for each version of the SA cycle were proven in the laboratory or have been fully demonstrated by others, but further optimization is still possible and needed. The solar configuration evolved to a 50 MW(thermal) central receiver system with a North heliostat field, a cavity receiver, and NaCl molten salt storage to allow continuous operation. The H2A economic model was used to optimize and trade-off SA cycle configurations. Parametric studies of chemical plant performance have indicated process efficiencies of ~20%. Although the current process efficiency is technically acceptable, an increased efficiency is needed if the DOE cost targets are to be reached. There are two interrelated areas in which there is the potential for significant efficiency improvements: electrolysis cell voltage and excessive water vaporization. Methods to significantly reduce water evaporation are proposed for future activities. Electrolysis membranes that permit higher temperatures and lower voltages are attainable. The oxygen half cycle will need further development and improvement.

Taylor, Robin [SAIC] [SAIC; Davenport, Roger [SAIC] [SAIC; Talbot, Jan [UCSD] [UCSD; Herz, Richard [UCSD] [UCSD; Genders, David [Electrosynthesis Co.] [Electrosynthesis Co.; Symons, Peter [Electrosynthesis Co.] [Electrosynthesis Co.; Brown, Lloyd [TChemE] [TChemE

2014-04-25T23:59:59.000Z

43

17November 2010 Global Energy and Water Cycle Experiment  

E-Print Network [OSTI]

observations, and remote sensing in the context of sus- tainability science. As a true test bed for community17November 2010 Global Energy and Water Cycle Experiment Meeting/Workshop Reports HESSS2 of society and the services of the hydrology community. In par- ticular, the estimation and reduction

44

A novel integrated concept of urban water management in a megalopolis from Latin America  

E-Print Network [OSTI]

and human supply. However, the water quality was affected by the affluent treated water. Our project.g. treatment of high heavy metals waters and emulsified oil wastes ­ ZOUBOLIS et al., 2000). The impuritiesA novel integrated concept of urban water management in a megalopolis from Latin America (São Paulo

Paris-Sud XI, Université de

45

Improvement in urban storm water management: analysing the innovation process through the three  

E-Print Network [OSTI]

SOYER 1 Improvement in urban storm water management: analysing the innovation process through to associate hard sciences and social sciences. Keywords Storm water management; observatories; innovation management is a good example: inefficient water networks in the city (regarding waste water as well as storm

Paris-Sud XI, Université de

46

MODELLING RADIATIVELY ACTIVE WATER-ICE CLOUDS: IMPACT ON THE THERMAL STRUCTURE AND WATER CYCLE.  

E-Print Network [OSTI]

MODELLING RADIATIVELY ACTIVE WATER-ICE CLOUDS: IMPACT ON THE THERMAL STRUCTURE AND WATER CYCLE. J. The essential role of water-ice clouds in shaping the thermal structure of the martian atmosphere has been long presumed [1] but neglected in GCMs because of the lack of observations and difficulty to predict

Madeleine, Jean-Baptiste

47

Water Vapor and Mechanical Work: A Comparison of Carnot and Steam Cycles OLIVIER PAULUIS  

E-Print Network [OSTI]

by the corresponding Carnot cycle. The Carnot and steam cycles can be combined into a mixed cycle that is forcedWater Vapor and Mechanical Work: A Comparison of Carnot and Steam Cycles OLIVIER PAULUIS Center in the atmosphere is discussed here by comparing two idealized heat engines: the Carnot cycle and the steam cycle

Pauluis, Olivier M.

48

The Pipe vs. The Shed: Waste Water compared with Natural Hydrology in an Urban Setting  

E-Print Network [OSTI]

Water compared with Natural Hydrology in an Urban Setting Bypaper was to compare the hydrology of the East Bay Municipala stream and watershed hydrology. Using stream flow data for

Lather, Alaska; Wozniak, Monika

2011-01-01T23:59:59.000Z

49

Multivariate Non-stationary Stochastic Streamflow Models for Two Urban , R. Vogel2  

E-Print Network [OSTI]

as changes in the water use cycle. Urbanization leads to construction of water distribution systems and storm1 Multivariate Non-stationary Stochastic Streamflow Models for Two Urban Watersheds M. Ng1 , R: urbanization and changes in climate and water use are examples of such influences. The evolution

Vogel, Richard M.

50

Balancing Energy and Water Consumption in an Urban Desert Environment: A Case  

E-Print Network [OSTI]

Balancing Energy and Water Consumption in an Urban Desert Environment: A Case Study on Phoenix, AZ effect, water scarcity, and energy consumption. The transformation of native landscapes into built to cool homes. Identifying Direct and Indirect Costs of Water and Energy Consumption Study Area Although

Hall, Sharon J.

51

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

Cycle Water Consumption for WECC NERC Region ElectricityCycle Water Withdrawals for WECC NERC Region ElectricityTRE TS&D USDA USGS VC W WECC WSI International Organization

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

52

WATER USE IN LCA Life cycle consumptive water use for oil shale development  

E-Print Network [OSTI]

WATER USE IN LCA Life cycle consumptive water use for oil shale development and implications Heidelberg 2013 Abstract Purpose Oil shale is an unconventional petroleum source that can be produced domestically in the USA. Oil shale resources are primarily located in Utah, Wyoming, and Colorado, within

Jaramillo, Paulina

53

E-Print Network 3.0 - atmospheric water cycle Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

cycle power plant's water demand is to meet... cooling water makeup requirements. Cooling towers reject heat from a power ... Source: California Energy Commission Collection:...

54

8th World Wide Workshop for Young Environmental Scientists WWW-YES 2009: Urban waters: resource or risks? 2-5 June 2009  

E-Print Network [OSTI]

that cross the urban-rural divide. Also, an easy-to use model can support decision making at the local urban water planning and policy level. This paper describes ongoing research on the urban water system8th World Wide Workshop for Young Environmental Scientists WWW-YES 2009: Urban waters: resource

Paris-Sud XI, Université de

55

Supercritical Water Reactor Cycle for Medium Power Applications  

SciTech Connect (OSTI)

Scoping studies for a power conversion system based on a direct-cycle supercritical water reactor have been conducted. The electric power range of interest is 5-30 MWe with a design point of 20 MWe. The overall design objective is to develop a system that has minimized physical size and performs satisfactorily over a broad range of operating conditions. The design constraints are as follows: Net cycle thermal efficiency {ge}20%; Steam turbine outlet quality {ge}90%; and Pumping power {le}2500 kW (at nominal conditions). Three basic cycle configurations were analyzed. Listed in order of increased plant complexity, they are: (1) Simple supercritical Rankine cycle; (2) All-supercritical Brayton cycle; and (3) Supercritical Rankine cycle with feedwater preheating. The sensitivity of these three configurations to various parameters, such as reactor exit temperature, reactor pressure, condenser pressure, etc., was assessed. The Thermoflex software package was used for this task. The results are as follows: (a) The simple supercritical Rankine cycle offers the greatest hardware simplification, but its high reactor temperature rise and reactor outlet temperature may pose serious problems from the viewpoint of thermal stresses, stability and materials in the core. (b) The all-supercritical Brayton cycle is not a contender, due to its poor thermal efficiency. (c) The supercritical Rankine cycle with feedwater preheating affords acceptable thermal efficiency with lower reactor temperature rise and outlet temperature. (d) The use of a moisture separator improves the performance of the supercritical Rankine cycle with feedwater preheating and allows for a further reduction of the reactor outlet temperature, thus it was selected for the next step. Preliminary engineering design of the supercritical Rankine cycle with feedwater preheating and moisture separation was performed. All major components including the turbine, feedwater heater, feedwater pump, condenser, condenser pump and pipes were modeled with realistic assumptions using the PEACE module of Thermoflex. A three-dimensional layout of the plant was also generated with the SolidEdge software. The results of the engineering design are as follows: (i) The cycle achieves a net thermal efficiency of 24.13% with 350/460 C reactor inlet/outlet temperatures, {approx}250 bar reactor pressure and 0.75 bar condenser pressure. The steam quality at the turbine outlet is 90% and the total electric consumption of the pumps is about 2500 kWe at nominal conditions. (ii) The overall size of the plant is attractively compact and can be further reduced if a printed-circuit-heat-exchanger (vs shell-and-tube) design is used for the feedwater heater, which is currently the largest component by far. Finally, an analysis of the plant performance at off-nominal conditions has revealed good robustness of the design in handling large changes of thermal power and seawater temperature.

BD Middleton; J Buongiorno

2007-04-25T23:59:59.000Z

56

OYEDOTUN, T. D. T. Urban water usages in Egbeda area of Oyo State,  

E-Print Network [OSTI]

OYEDOTUN, T. D. T. Urban water usages in Egbeda area of Oyo State, Nigeria Temitope Dare Timothy, Akungba-Akoko, Ondo State, Nigeria. (E-mail: oyedotuntim@yahoo.com ) Abstract The increasing urbanisation. 149 households were sampled to evaluate their water usages and needs through the use of prepared

Paris-Sud XI, Université de

57

In Cooperation with the National Park Service Water Quality Program Biogeochemical Processes in an Urban, Restored  

E-Print Network [OSTI]

In Cooperation with the National Park Service Water Quality Program Biogeochemical Processes in an Urban, Restored Wetland of San Francisco Bay, California, 2007­ 2009: Methods and Data for Plant, Sediment, and Water Parameters By Lisamarie Windham-Myers, Mark C. Marvin-DiPasquale, Jennifer L. Agee, Le

58

Chapter 13 Water Resources Hoover Dam  

E-Print Network [OSTI]

management Water shortage linked to food supply Learning Objectives #12; The global water cycleChapter 13 Water Resources #12;Hoover Dam #12;The Colorado River Basin Population growth Urbanization Climate change #12; Water cycle Water use Surface water and groundwater processes Water

Pan, Feifei

59

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

SciTech Connect (OSTI)

Residential water heating is a large source of energy use in California homes. This project took a life cycle approach to comparing tank and tankless water heaters in Northern and Southern California. Information about the life cycle phases was calculated using the European Union?s Methodology study for EcoDesign of Energy-using Products (MEEUP) and the National Renewable Energy Laboratory?s Life Cycle Inventory (NREL LCI) database. In a unit-to-unit comparison, it was found that tankless water heaters would lessen impacts of water heating by reducing annual energy use by 2800 MJ/year (16% compared to tank), and reducing global warming emissions by 175 kg CO2 eqv./year (18% reduction). Overall, the production and combustion of natural gas in the use phase had the largest impact. Total waste, VOCs, PAHs, particulate matter, and heavy-metals-to-air categories were also affected relatively strongly by manufacturing processes. It was estimated that tankless water heater users would have to use 10 more gallons of hot water a day (an increased usage of approximately 20%) to have the same impact as tank water heaters. The project results suggest that if a higher percentage of Californians used tankless water heaters, environmental impacts caused by water heating would be smaller.

Lu, Alison; McMahon, James; Masanet, Eric; Lutz, Jim

2008-08-13T23:59:59.000Z

60

Valuing the Environmental Benefits of Urban Water Conservation  

E-Print Network [OSTI]

2.3 Integration with the Avoided Costconsistency with the Avoided Cost model. 4. Provide a set ofWater Utility Direct Avoided Costs from Water Use E?ciency,

Coughlin, Katie M.; Bolduc, Chris A.; Chan, Peter T.; Dunham-Whitehead, C.; Van Buskirk, R.D.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Water Supply Challenges in Cities as a Result of Urbanization: Analyzing the Hurdles of Achieving Universal Water Access in Kampala  

E-Print Network [OSTI]

in Kampala and untreated sewage flows back into Lake Victoria, which is also the raw water source. This requires more extensive and energy intensive treatment to produce drinking water, indicating the interrelationship between sanitation facilities... to access physical distribution points, which is affected by several items. 4.1. Urbanization Immigrants come to Kampala across all income levels from both rural areas and other cities (UN-Habitat, 2010). Of 60 individuals asked, 75% were born outside...

Felter, Greg

2014-07-09T23:59:59.000Z

62

International Symposium on New Directions in Urban Water Management 12-14 September 2007, UNESCO Paris  

E-Print Network [OSTI]

periods. Combined systems are equipped with CSOs' devices to avoid overflows on streets or house basement to reach and maintain a good ecological status (EU, Directive 2000). For highly modified water masses like in urban and periurban areas, the objective of a maximal ecological potential must be defined and reached

Boyer, Edmond

63

Life cycle inventory of biodiesel and petroleum diesel for use in an urban bus. Final report  

SciTech Connect (OSTI)

This report presents the findings from a study of the life cycle inventories for petroleum diesel and biodiesel. It presents information on raw materials extracted from the environment, energy resources consumed, and air, water, and solid waste emissions generated. Biodiesel is a renewable diesel fuel substitute. It can be made from a variety of natural oils and fats. Biodiesel is made by chemically combining any natural oil or fat with an alcohol such as methanol or ethanol. Methanol has been the most commonly used alcohol in the commercial production of biodiesel. In Europe, biodiesel is widely available in both its neat form (100% biodiesel, also known as B1OO) and in blends with petroleum diesel. European biodiesel is made predominantly from rapeseed oil (a cousin of canola oil). In the United States, initial interest in producing and using biodiesel has focused on the use of soybean oil as the primary feedstock mainly because the United States is the largest producer of soybean oil in the world. 170 figs., 148 tabs.

Sheehan, J.; Camobreco, V.; Duffield, J.; Graboski, M.; Shapouri, H.

1998-05-01T23:59:59.000Z

64

Alternative water sources: Desalination model provides life-cycle costs of facility  

E-Print Network [OSTI]

Story by Danielle Supercinski tx H2O | pg. 8 Alternative water sourcees Desalination model provides life-cycle costs of facility platform and design standards as DESAL ECONOMICS?, but created to analyze con- ventional surface water treatment... to determine the economic and financial life-cycle costs of building and operating four water treatment facilities in South Texas. One facility was the Southmost Regional Water Authority Regional Desalination Plant near Brownsville. Sturdi- vant said...

Supercinski, Danielle

2009-01-01T23:59:59.000Z

65

Site design for urban water management in Mexico City  

E-Print Network [OSTI]

As the world becomes aware of the scarcity of water resources and cities struggle to meet a growing demand, we face the challenge of finding more efficient ways to manage this vital resource. Cities in developing countries ...

Rivera, José Pablo (Rivera De la Mora), 1967-

2001-01-01T23:59:59.000Z

66

Drops of Energy Conserving Urban Water in California  

E-Print Network [OSTI]

, and unpredictable water supplies. In addition, rising sea levels from global warming and glacial melting threaten like to thank Anne Finucane, Global Chief Strategy and Marketing Officer, and Chair of the Bank

Kammen, Daniel M.

67

Brice Nichols and Kara Kockelman URBAN FORM AND LIFE-CYCLE ENERGY CONSUMPTION  

E-Print Network [OSTI]

a holistic analysis of energy demands by sector and usage phase, at a large scale. Pivoting off previous work) and provide a rare view of total annual energy demands from the urban residential and commercial sectors gas emissions via transport behavior and building energy use, very little work actually aggregates

Kockelman, Kara M.

68

Positioning the performance of public service. When management tools are in conflict : the case of urban water management  

E-Print Network [OSTI]

the conflict between new and existing performance management tools in a large urban public service3 . We usePositioning the performance of public service. When management tools are in conflict : the case of urban water management Marie Tsanga Tabi, U.M.R Cemagref-ENGEES "Management of Public Services", 1 quai

Paris-Sud XI, Université de

69

Global Climate Modeling of the Martian water cycle with improved microphysics and radiatively active water ice clouds  

E-Print Network [OSTI]

Radiative effects of water ice clouds have noteworthy consequences on the Martian atmosphere, its thermal structure and circulation. Accordingly, the inclusion of such effects in the LMD Mars Global Climate Model (GCM) greatly modifies the simulated Martian water cycle. The intent of this paper is to address the impact of radiatively active clouds on atmospheric water vapor and ice in the GCM and improve its representation. We propose a new enhanced modeling of the water cycle, consisting of detailed cloud microphysics with dynamic condensation nuclei and a better implementation of perennial surface water ice. This physical modeling is based on tunable parameters. This new version of the GCM is compared to the Thermal Emission Spectrometer observations of the water cycle. Satisfying results are reached for both vapor and cloud opacities. However, simulations yield a lack of water vapor in the tropics after Ls=180{\\deg} which is persistent in simulations compared to observations, as a consequence of aphelion c...

Navarro, Thomas; Forget, François; Spiga, Aymeric; Millour, Ehouarn; Montmessin, Franck

2013-01-01T23:59:59.000Z

70

Comparative urban drive cycle simulations of light-duty hybrid vehicles with gasoline or diesel engines and emissions controls  

SciTech Connect (OSTI)

Electric hybridization is a very effective approach for reducing fuel consumption in light-duty vehicles. Lean combustion engines (including diesels) have also been shown to be significantly more fuel efficient than stoichiometric gasoline engines. Ideally, the combination of these two technologies would result in even more fuel efficient vehicles. However, one major barrier to achieving this goal is the implementation of lean-exhaust aftertreatment that can meet increasingly stringent emissions regulations without heavily penalizing fuel efficiency. We summarize results from comparative simulations of hybrid electric vehicles with either stoichiometric gasoline or diesel engines that include state-of-the-art aftertreatment emissions controls for both stoichiometric and lean exhaust. Fuel consumption and emissions for comparable gasoline and diesel light-duty hybrid electric vehicles were compared over a standard urban drive cycle and potential benefits for utilizing diesel hybrids were identified. Technical barriers and opportunities for improving the efficiency of diesel hybrids were identified.

Gao, Zhiming [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL; Smith, David E [ORNL] [ORNL

2013-01-01T23:59:59.000Z

71

Energetic performance optimization of a capacitive deionization system operating with transient cycles and brackish water  

E-Print Network [OSTI]

face economic water shortage [4], meaning that effective steps have to be taken, in terms of increasing cycles and brackish water Onur N. Demirer, Rachel M. Naylor, Carlos A. Rios Perez, Ellen Wilkes, Carlos analysis Water desalination using capacitive deionization (CDI) has been a recent topic of intense research

Hidrovo, Carlos H.

72

Humans Altering the Water Cycle GTN-Hydrology Meeting  

E-Print Network [OSTI]

· Positive effects: water for irrigation, industry, and domestic purposes; flood control; hydroelectricity · Forest plantations · Hydroelectric power facilities · Water transfer schemes · Sea wall construction #12

Columbia University

73

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

144 Figure 63: Impact of Hydroelectricity on the Life-Cycle157 Figure 64: Impact of Hydroelectricity on the Water68 Table 14: Hydroelectricity-Related FWSE (Data Source: (

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

74

Diurnal to annual variations in the atmospheric water cycle  

E-Print Network [OSTI]

diurnal cycle of total dry energy in the global reanalyses.total dry energy divergence. These components are only available in the globaltotal atmospheric dry energy divergence and tendency ..50 Figure 3.1 Mean precipitation rate for each of the five global

Ruane, Alexander C

2007-01-01T23:59:59.000Z

75

The persistence of oceans on Earth-like planets: insights from the deep-water cycle  

E-Print Network [OSTI]

In this paper we present a series of models for the deep water cycle on super-Earths experiencing plate tectonics. The deep water cycle can be modeled through parameterized convection models coupled with a volatile recycling model. The convection of the silicate mantle is linked to the volatile cycle through the water-dependent viscosity. Important differences in surface water content are found for different parameterizations of convection. Surface oceans are smaller and more persistent for single layer convection, rather than convection by boundary layer instability. Smaller planets have initially larger oceans but also return that water to the mantle more rapidly than larger planets. Super-Earths may therefore be less habitable in their early years than smaller planets, but their habitability (assuming stable surface conditions), will persist much longer.

Schaefer, Laura

2015-01-01T23:59:59.000Z

76

Ecosystem Services and Trade-Offs Mediated by Urban Water Bodies for Homeless Popula@ons in Phoenix Wolf, A.1,2, M.M. Palta,2 N.B. Grimm,2 J. Gwiszcz,3 O. Schwake,4  

E-Print Network [OSTI]

Ecosystem Services and Trade-Offs Mediated by Urban Water Bodies for Homeless · Urban runoff entering stormwater ouPalls in Phoenix have created "accidental" wetlands in the otherwise dry Salt River bed · Urban wetland environments

Hall, Sharon J.

77

DESIGN OF HYBRID POWER GENERATION CYCLES EMPLOYING AMMONIA-WATER-CARBON DIOXIDE MIXTURES  

SciTech Connect (OSTI)

A power cycle generates electricity from the heat of combustion of fossil fuels. Its efficiency is governed by the cycle configuration, the operating parameters, and the working fluid. Typical. designs use pure water as the fluid. in the last two decades, hybrid cycles based on ammonia-water, and carbon-dioxide mixtures as the working fluid have been proposed. These cycles may improve the power generation efficiency of Rankine cycles by 15%. Improved efficiency is important for two reasons: it lowers the cost of electricity being produced, and by reducing the consumption of fossil fuels per unit power, it reduces the generation of environmental pollutants. The goal of this project is to develop a computational optimization-based method for the design and analysis of hybrid bottoming power cycles to minimize the usage of fossil fuels. The development of this methodology has been achieved by formulating this task as that of selecting the least cost power cycle design from all possible configurations. They employ a detailed thermodynamic property prediction package they have developed under a DOE-FETC grant to model working fluid mixtures. Preliminary results from this work suggest that a pure NH{sub 3} cycle outperforms steam or the expensive Kalina cycle.

Ashish Gupta

2002-06-01T23:59:59.000Z

78

Estimation of the urban household demand for water in the United States  

E-Print Network [OSTI]

(bltion, the oric(i of' w" tor ?ias assu!mod con. tar t be( ause 10 of tlio 14 c i. I, le - had idcii tioal rate schedules?mind throe of the remaining 1'our & i ties hud. unite s'iailor &arcs Th?s? tho d mond. fc(' i&i!&Br' w(&s &'&ypctliosiso&i. to br a &1&n...) and evaporaticn from June . hrough Sepl;ember (Grunewald, Haan, Debertin, sno. Carcy). It is evident that this important com- ponent oi' urban water demand deserves additional attention. The moisture available for use ir. turf maintenance (in the ab- sence...

Foster, Henry Sessam

1977-01-01T23:59:59.000Z

79

Tracking Non-point Fecal Pollution in the Guadalupe River: Distinguishing Urban and Rural Influences upon Water Quality  

E-Print Network [OSTI]

, Assistant Professor University of Houston - Victoria Non-point fecal pollution is a problem in water bodiesTracking Non-point Fecal Pollution in the Guadalupe River: Distinguishing Urban and Rural Influences upon Water Quality Matthew Boyett University of Houston - Victoria boyettmr@uhv.edu Dmitri Sobolev

80

RAINWATER HARVESTING, ALTERNATIVE TO THE WATER SUPPLY IN INDIAN URBAN AREAS: THE CASE OF AHMEDABAD IN GUJARAT  

E-Print Network [OSTI]

RAINWATER HARVESTING, ALTERNATIVE TO THE WATER SUPPLY IN INDIAN URBAN AREAS: THE CASE OF AHMEDABAD, the rehabilitation of rainwater harvesting structures in the Old city of Ahmedabad suggests the necessity their water requirements. Rainwater harvesting is one of them. It was functioning in the Old city of Ahmedabad

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

INVESTIGATIONS ON THE IMPACTS OF LAND-COVER CHANGES AND/OR INCREASED CO2 CONCENTRATIONS ON FOUR REGIONAL WATER CYCLES  

E-Print Network [OSTI]

REGIONAL WATER CYCLES AND THEIR INTERACTIONS WITH THE GLOBAL WATER CYCLE By Zhao Li RECOMMENDED-COVER CHANGES AND/OR INCREASED CO2 CONCENTRATIONS ON FOUR REGIONAL WATER CYCLES AND THEIR INTERACTIONS WITH THE GLOBAL WATER CYCLE A THESIS Presented to the Faculty of the University of Alaska Fairbanks In Partial

Moelders, Nicole

82

Sandia National Laboratories: Use-Inspired Water Cycle Research  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErikGroundbreakingStandardsTCESJBEIMarine Hydrokinetic EnergyUse-Inspired Water

83

9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009  

E-Print Network [OSTI]

director plans. Keywords Management; decision support systems; sustainable development; geopolitics; social9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009 Brazilian Regulatory Process: including groundwater in urban water

Paris-Sud XI, Université de

84

Life cycle assessment of buildings technologies: High-efficiency commercial lighting and residential water heaters  

SciTech Connect (OSTI)

In this study the life cycle emissions and energy use are estimated for two types of energy technologies. The first technology evaluated is the sulfur lamp, a high-efficiency lighting system under development by the US Department of Energy (DOE) and Fusion Lighting, the inventor of the technology. The sulfur lamp is compared with conventional metal halide high-intensity discharge lighting systems. The second technology comparison is between standard-efficiency and high-efficiency gas and electric water heaters. In both cases the life cycle energy use and emissions are presented for the production of an equivalent level of service by each of the technologies. For both analyses, the energy use and emissions from the operation of the equipment are found to dominate the life cycle profile. The life cycle emissions for the water heating systems are much more complicated. The four systems compared include standard- and high-efficiency gas water heaters, standard electric resistance water heaters, and heat pump water heaters.

Freeman, S.L.

1997-01-01T23:59:59.000Z

85

8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource or risks? 13-16 May 2008  

E-Print Network [OSTI]

consequence of water lack is unhealthy. Water-borne diseases caused by pathogen agents appear in this city so endemic. Keywords lack, pathogens, quality, water borne disease, water supply, well INTRODUCTION8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource

Boyer, Edmond

86

RAINWATER HARVESTING, ALTERNATIVE TO THE WATER SUPPLY IN INDIAN URBAN AREAS: THE CASE OF AHMEDABAD IN GUJARAT  

E-Print Network [OSTI]

RAINWATER HARVESTING, ALTERNATIVE TO THE WATER SUPPLY IN INDIAN URBAN AREAS: THE CASE OF AHMEDABAD, the rehabilitation of rainwater harvesting structures in the Old city of Ahmedabad suggests the necessity in Ahmedabad and more particularly of the rehabilitation of the rainwater harvesting structures still existing

Paris-Sud XI, Université de

87

Advanced Fuel Cycle Economic Analysis of Symbiotic Light-Water Reactor and Fast Burner Reactor Systems  

SciTech Connect (OSTI)

The Advanced Fuel Cycle Economic Analysis of Symbiotic Light-Water Reactor and Fast Burner Reactor Systems, prepared to support the U.S. Advanced Fuel Cycle Initiative (AFCI) systems analysis, provides a technology-oriented baseline system cost comparison between the open fuel cycle and closed fuel cycle systems. The intent is to understand their overall cost trends, cost sensitivities, and trade-offs. This analysis also improves the AFCI Program’s understanding of the cost drivers that will determine nuclear power’s cost competitiveness vis-a-vis other baseload generation systems. The common reactor-related costs consist of capital, operating, and decontamination and decommissioning costs. Fuel cycle costs include front-end (pre-irradiation) and back-end (post-iradiation) costs, as well as costs specifically associated with fuel recycling. This analysis reveals that there are large cost uncertainties associated with all the fuel cycle strategies, and that overall systems (reactor plus fuel cycle) using a closed fuel cycle are about 10% more expensive in terms of electricity generation cost than open cycle systems. The study concludes that further U.S. and joint international-based design studies are needed to reduce the cost uncertainties with respect to fast reactor, fuel separation and fabrication, and waste disposition. The results of this work can help provide insight to the cost-related factors and conditions needed to keep nuclear energy (including closed fuel cycles) economically competitive in the U.S. and worldwide. These results may be updated over time based on new cost information, revised assumptions, and feedback received from additional reviews.

D. E. Shropshire

2009-01-01T23:59:59.000Z

88

Modeling Potential Equilibrium States of Vegetation and Terrestrial Water Cycle of Mesoamerica under Climate Change Scenarios*  

E-Print Network [OSTI]

precipitation, the impacts of climate change on vegetation and water cycle are predicted with relatively low under Climate Change Scenarios* PABLO IMBACH,1 LUIS MOLINA,1 BRUNO LOCATELLI,# OLIVIER ROUPSARD,1,@ GIL MAHE´ ,& RONALD NEILSON,**,&& LENIN CORRALES,11 MARKO SCHOLZE,## AND PHILIPPE CIAIS @@ 1 Climate Change

Boyer, Edmond

89

Hydrological consistency using multi-sensor remote sensing data for water and energy cycle studies  

E-Print Network [OSTI]

Hydrological consistency using multi-sensor remote sensing data for water and energy cycle studies and feedback of land surface and atmospheric processes over large space and time scales. Remote sensing-based variables including soil moisture (from AMSR-E), surface heat fluxes (from MODIS) and precipitation rates

Pan, Ming

90

Urban Growth and Climate Change  

E-Print Network [OSTI]

air pollution or urban water pollution, local and nationalbasic services of clean water and sanitation for a growing

Kahn, Matthew E.

2008-01-01T23:59:59.000Z

91

Environmental costs and benefits of urban forests  

E-Print Network [OSTI]

Disservice #12;Desired outcome: Minimize or offset urban GHG emissions Supporting ecosystem services: Carbon N2O and energy use offsets soil carbon Townsend-Small and Green, In press #12;Question: What happens. 2008 #12;Net Ecosystem Production Evapotranspiration Nutrient Cycling Carbon sequestration Water

Rose, Michael R.

92

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

unit*year) Heavy Metals to Water Heavy Metals to Water mg NiMatter Emissions (Water) Heavy Metals mg Hg/20 /unit*yearMatter Mg/year Emissions (Water) Heavy Metals Gg Hg/20 /year

Lu, Alison

2011-01-01T23:59:59.000Z

93

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

than standard storage water heaters [2]. However, they aredown for both storage-type water heaters and tankless water1]. The typical water heater storage tank wastes energy to

Lu, Alison

2011-01-01T23:59:59.000Z

94

Fuel-Cycle energy and emission impacts of ethanol-diesel blends in urban buses and farming tractors.  

SciTech Connect (OSTI)

About 2.1 billion gallons of fuel ethanol was used in the United States in 2002, mainly in the form of gasoline blends containing up to 10% ethanol (E10). Ethanol use has the potential to increase in the U.S. blended gasoline market because methyl tertiary butyl ether (MTBE), formerly the most popular oxygenate blendstock, may be phased out owing to concerns about MTBE contamination of the water supply. Ethanol would remain the only viable near-term option as an oxygenate in reformulated gasoline production and to meet a potential federal renewable fuels standard (RFS) for transportation fuels. Ethanol may also be blended with additives (co-solvents) into diesel fuels for applications in which oxygenation may improve diesel engine emission performance. Numerous studies have been conducted to evaluate the fuel-cycle energy and greenhouse gas (GHG) emission effects of ethanol-gasoline blends relative to those of gasoline for applications in spark-ignition engine vehicles (see Wang et al. 1997; Wang et al. 1999; Levelton Engineering et al. 1999; Shapouri et al. 2002; Graboski 2002). Those studies did not address the energy and emission effects of ethanol-diesel (E-diesel or ED) blends relative to those of petroleum diesel fuel in diesel engine vehicles. The energy and emission effects of E-diesel could be very different from those of ethanol-gasoline blends because (1) the energy use and emissions generated during diesel production (so-called ''upstream'' effects) are different from those generated during gasoline production; and (2) the energy and emission performance of E-diesel and petroleum diesel fuel in diesel compression-ignition engines differs from that of ethanol-gasoline blends in spark-ignition (Otto-cycle-type) engine vehicles. The Illinois Department of Commerce and Community Affairs (DCCA) commissioned Argonne National Laboratory to conduct a full fuel-cycle analysis of the energy and emission effects of E-diesel blends relative to those of petroleum diesel when used in the types of diesel engines that will likely be targeted first in the marketplace. This report documents the results of our study. The draft report was delivered to DCCA in January 2003. This final report incorporates revisions by the sponsor and by Argonne.

Wang, M.; Saricks, C.; Lee, H.

2003-09-11T23:59:59.000Z

95

Determining Sources of Dissolved Organic Carbon and Nutrients in an Urban Basin Using Novel and Traditional Methods  

E-Print Network [OSTI]

Water quality in urban ecosystems is sensitive to localized disturbances potentially affecting those mechanisms which influence nutrient cycles. The Carters Creek Basin has been reported to have elevated concentrations of dissolved organic carbon...

Govil, Krittika

2014-01-03T23:59:59.000Z

96

A Novel Absorption Cycle for Combined Water Heating, Dehumidification, and Evaporative Cooling  

SciTech Connect (OSTI)

In this study, development of a novel system for combined water heating, dehumidification, and space evaporative cooling is discussed. Ambient water vapor is used as a working fluid in an open system. First, water vapor is absorbed from an air stream into an absorbent solution. The latent heat of absorption is transferred into the process water that cools the absorber. The solution is then regenerated in the desorber, where it is heated by a heating fluid. The water vapor generated in the desorber is condensed and its heat of phase change is transferred to the process water in the condenser. The condensed water can then be used in an evaporative cooling process to cool the dehumidified air exiting the absorber, or it can be drained if primarily dehumidification is desired. Essentially, this open absorption cycle collects space heat and transfers it to process water. This technology is enabled by a membrane-based absorption/desorption process in which the absorbent is constrained by hydrophobic vapor-permeable membranes. Constraining the absorbent film has enabled fabrication of the absorber and desorber in a plate-and-frame configuration. An air stream can flow against the membrane at high speed without entraining the absorbent, which is a challenge in conventional dehumidifiers. Furthermore, the absorption and desorption rates of an absorbent constrained by a membrane are greatly enhanced. Isfahani and Moghaddam (Int. J. Heat Mass Transfer, 2013) demonstrated absorption rates of up to 0.008 kg/m2s in a membrane-based absorber and Isfahani et al. (Int. J. Multiphase Flow, 2013) have reported a desorption rate of 0.01 kg/m2s in a membrane-based desorber. The membrane-based architecture also enables economical small-scale systems, novel cycle configurations, and high efficiencies. The absorber, solution heat exchanger, and desorber are fabricated on a single metal sheet. In addition to the open arrangement and membrane-based architecture, another novel feature of the cycle is recovery of the solution heat energy exiting the desorber by process water (a process-solution heat exchanger ) rather than the absorber exiting solution (the conventional solution heat exchanger ). This approach has enabled heating the process water from an inlet temperature of 15 C to 57 C (conforming to the DOE water heater test standard) and interfacing the process water with absorbent on the opposite side of a single metal sheet encompassing the absorber, process-solution heat exchanger, and desorber. The system under development has a 3.2 kW water heating capacity and a target thermal coefficient of performance (COP) of 1.6.

CHUGH, Devesh [University of Florida, Gainesville; Gluesenkamp, Kyle R [ORNL; Abdelaziz, Omar [ORNL; Moghaddam, Saeed [University of Florida, Gainesville

2014-01-01T23:59:59.000Z

97

"Urban planning and urban services  

E-Print Network [OSTI]

of deep water aquifers in the Gironde (B. de Grissac, SMEGREG) 68 The challenge of securing drinking water boost city resilience? Municipalities and resilience engineering: the RESILIS project (J-P. Arnaud, Egis, Professor Emeritus of INSA, Lyon) 44 Water and sanitation services and urban resilience (B. Chocat

Paris-Sud XI, Université de

98

XENOWAC 2009 International Conference on Xenobiotics in the Urban Water Cycle  

E-Print Network [OSTI]

. Degradation kinetics was monitored by UV-visible spectroscopy, mass spectrometry (MS), HPLC-MS and dissolved, BP 20451, F-54001 Nancy Cedex, France Abstract The photocatalytic degradation of tylosin has been studied using immobilized titanium dioxide as catalyst. T he processes of degradation and reduction

Boyer, Edmond

99

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

Study on Eco-Design of Water Heaters, Van Holstein en Kemnaon Eco-Design of Water Heaters”, Task 5 Report, DefinitionTesting of Tankless Gas Water Heater Performance. Davis

Lu, Alison

2011-01-01T23:59:59.000Z

100

Dual-duty rainwater harvesting: water supply and urban stream restoration.  

E-Print Network [OSTI]

??An exciting epoch is before us where we are focused on transforming urban living to a higher symbiosis with nature. For now, and looking over… (more)

Taylor, Benjamin Allan

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Nuclear Systems Enhanced Performance Program, Maintenance Cycle Extension in Advanced Light Water Reactor Design  

SciTech Connect (OSTI)

A renewed interest in new nuclear power generation in the US has spurred interest in developing advanced reactors with features which will address the public's concerns regarding nuclear generation. However, it is economic performance which will dictate whether any new orders for these plants will materialize. Economic performance is, to a great extent, improved by maximizing the time that the plant is on-line generating electricity relative to the time spent off-line conducting maintenance and refueling. Indeed, the strategy for the advanced light water reactor plant IRIS (International Reactor, Innovative and Secure) is to utilize an eight year operating cycle. This report describes a formalized strategy to address, during the design phase, the maintenance-related barriers to an extended operating cycle. The top-level objective of this investigation was to develop a methodology for injecting component and system maintainability issues into the reactor plant design process to overcome these barriers. A primary goal was to demonstrate the applicability and utility of the methodology in the context of the IRIS design. The first step in meeting the top-level objective was to determine the types of operating cycle length barriers that the IRIS design team is likely to face. Evaluation of previously identified regulatory and investment protection surveillance program barriers preventing a candidate operating PWR from achieving an extended (48 month) cycle was conducted in the context of the IRIS design. From this analysis, 54 known IRIS operating cycle length barriers were identified. The resolution methodology was applied to each of these barriers to generate design solution alternatives for consideration in the IRIS design. The methodology developed has been demonstrated to narrow the design space to feasible design solutions which enable a desired operating cycle length, yet is general enough to have broad applicability. Feedback from the IRIS design team indicates that the proposed solutions to the investigated operating cycle length barriers are both feasible and consistent with sound design practice.

Professor Neill Todreas

2001-10-01T23:59:59.000Z

102

Non-Proliferative, Thorium-Based, Core and Fuel Cycle for Pressurized Water Reactors  

SciTech Connect (OSTI)

Two of the major barriers to the expansion of worldwide adoption of nuclear power are related to proliferation potential of the nuclear fuel cycle and issues associated with the final disposal of spent fuel. The Radkowsky Thorium Fuel (RTF) concept proposed by Professor A. Radkowsky offers a partial solution to these problems. The main idea of the concept is the utilization of the seed-blanket unit (SBU) fuel assembly geometry which is a direct replacement for a 'conventional' assembly in either a Russian pressurized water reactor (VVER-1000) or a Western pressurized water reactor (PWR). The seed-blanket fuel assembly consists of a fissile (U) zone, known as seed, and a fertile (Th) zone known as blanket. The separation of fissile and fertile allows separate fuel management schemes for the thorium part of the fuel (a subcritical 'blanket') and the 'driving' part of the core (a supercritical 'seed'). The design objective for the blanket is an efficient generation and in-situ fissioning of the U233 isotope, while the design objective for the seed is to supply neutrons to the blanket in a most economic way, i.e. with minimal investment of natural uranium. The introduction of thorium as a fertile component in the nuclear fuel cycle significantly reduces the quantity of plutonium production and modifies its isotopic composition, reducing the overall proliferation potential of the fuel cycle. Thorium based spent fuel also contains fewer higher actinides, hence reducing the long-term radioactivity of the spent fuel. The analyses show that the RTF core can satisfy the requirements of fuel cycle length, and the safety margins of conventional pressurized water reactors. The coefficients of reactivity are comparable to currently operating VVER's/PWR's. The major feature of the RTF cycle is related to the total amount of spent fuel discharged for each cycle from the reactor core. The fuel management scheme adopted for RTF core designs allows a significant decrease in the amount of discharged spent fuel, for a given energy production, compared with standard VVER/PWR. The total Pu production rate of RTF cycles is only 30 % of standard reactor. In addition, the isotopic compositions of the RTF's and standard reactor grade Pu are markedly different due to the very high burnup accumulated by the RTF spent fuel.

Todosow M.; Todosow M.; Raitses, G. (BNL) Galperin, A. (Ben Gurion University)

2009-07-12T23:59:59.000Z

103

Development of a Water Based, Critical Flow, Non-Vapor Compression cooling Cycle  

SciTech Connect (OSTI)

Expansion of a high-pressure liquid refrigerant through the use of a thermostatic expansion valve or other device is commonplace in vapor-compression cycles to regulate the quality and flow rate of the refrigerant entering the evaporator. In vapor-compression systems, as the condensed refrigerant undergoes this expansion, its pressure and temperature drop, and part of the liquid evaporates. We (researchers at Kansas State University) are developing a cooling cycle that instead pumps a high-pressure refrigerant through a supersonic converging-diverging nozzle. As the liquid refrigerant passes through the nozzle, its velocity reaches supersonic (or critical-flow) conditions, substantially decreasing the refrigerant’s pressure. This sharp pressure change vaporizes some of the refrigerant and absorbs heat from the surrounding conditions during this phase change. Due to the design of the nozzle, a shockwave trips the supersonic two-phase refrigerant back to the starting conditions, condensing the remaining vapor. The critical-flow refrigeration cycle would provide space cooling, similar to a chiller, by running a secondary fluid such as water or glycol over one or more nozzles. Rather than utilizing a compressor to raise the pressure of the refrigerant, as in a vapor-cycle system, the critical-flow cycle utilizes a high-pressure pump to drive refrigerant liquid through the cooling cycle. Additionally, the design of the nozzle can be tailored for a given refrigerant, such that environmentally benign substances can act as the working fluid. This refrigeration cycle is still in early-stage development with prototype development several years away. The complex multi-phase flow at supersonic conditions presents numerous challenges to fully understanding and modeling the cycle. With the support of DOE and venture-capital investors, initial research was conducted at PAX Streamline, and later, at Caitin. We (researchers at Kansas State University) have continued development of the cycle and have gained an in-depth understanding of the governing fundamental knowledge, based on the laws of physics and thermodynamics and verified with our testing results. Through this research, we are identifying optimal working fluid and operating conditions to eventually demonstrate the core technology for space cooling or other applications.

Hosni, Mohammad H.

2014-03-30T23:59:59.000Z

104

MUREX: a land-surface eld experiment to study the annual cycle of the energy and water budgets  

E-Print Network [OSTI]

was fully characterised, and surface water and energy ¯uxes, vegetation biomass, soil moisture pro shortcomings are revealed. Key words. Hydrology (evapotranspiration; soil moisture; water-energy interactionsMUREX: a land-surface ®eld experiment to study the annual cycle of the energy and water budgets J

Paris-Sud XI, Université de

105

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

Diagram 1: A Typical Tank Water Heater Source: http://to-unit comparisons of tank versus tankless water heaters.Energy Use MJ/(unit*year) Tank Tankless MJ/(unit*year) Tank

Lu, Alison

2011-01-01T23:59:59.000Z

106

Life Cycle Water Consumption and Water Resource Assessment for Utility-Scale Geothermal Systems: An In-Depth Analysis of Historical and Forthcoming EGS Projects  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

This report is the third in a series of reports sponsored by the U.S. Department of Energy Geothermal Technologies Program in which a range of water-related issues surrounding geothermal power production are evaluated. The first report made an initial attempt at quantifying the life cycle fresh water requirements of geothermal power-generating systems and explored operational and environmental concerns related to the geochemical composition of geothermal fluids. The initial analysis of life cycle fresh water consumption of geothermal power-generating systems identified that operational water requirements consumed the vast majority of water across the life cycle. However, it relied upon limited operational water consumption data and did not account for belowground operational losses for enhanced geothermal systems (EGSs). A second report presented an initial assessment of fresh water demand for future growth in utility-scale geothermal power generation. The current analysis builds upon this work to improve life cycle fresh water consumption estimates and incorporates regional water availability into the resource assessment to improve the identification of areas where future growth in geothermal electricity generation may encounter water challenges.

Schroeder, Jenna N.

107

Life Cycle Water Consumption and Water Resource Assessment for Utility-Scale Geothermal Systems: An In-Depth Analysis of Historical and Forthcoming EGS Projects  

SciTech Connect (OSTI)

This report is the third in a series of reports sponsored by the U.S. Department of Energy Geothermal Technologies Program in which a range of water-related issues surrounding geothermal power production are evaluated. The first report made an initial attempt at quantifying the life cycle fresh water requirements of geothermal power-generating systems and explored operational and environmental concerns related to the geochemical composition of geothermal fluids. The initial analysis of life cycle fresh water consumption of geothermal power-generating systems identified that operational water requirements consumed the vast majority of water across the life cycle. However, it relied upon limited operational water consumption data and did not account for belowground operational losses for enhanced geothermal systems (EGSs). A second report presented an initial assessment of fresh water demand for future growth in utility-scale geothermal power generation. The current analysis builds upon this work to improve life cycle fresh water consumption estimates and incorporates regional water availability into the resource assessment to improve the identification of areas where future growth in geothermal electricity generation may encounter water challenges.

Schroeder, Jenna N.

2013-08-31T23:59:59.000Z

108

Life Cycle Water Consumption and Water Resource Assessment for Utility-Scale Geothermal Systems: An In-Depth Analysis of Historical and Forthcoming EGS Projects  

SciTech Connect (OSTI)

This report is the third in a series of reports sponsored by the U.S. Department of Energy Geothermal Technologies Program in which a range of water-related issues surrounding geothermal power production are evaluated. The first report made an initial attempt at quantifying the life cycle fresh water requirements of geothermal power-generating systems and explored operational and environmental concerns related to the geochemical composition of geothermal fluids. The initial analysis of life cycle fresh water consumption of geothermal power-generating systems identified that operational water requirements consumed the vast majority of water across the life cycle. However, it relied upon limited operational water consumption data and did not account for belowground operational losses for enhanced geothermal systems (EGSs). A second report presented an initial assessment of fresh water demand for future growth in utility-scale geothermal power generation. The current analysis builds upon this work to improve life cycle fresh water consumption estimates and incorporates regional water availability into the resource assessment to improve the identification of areas where future growth in geothermal electricity generation may encounter water challenges. This report is divided into nine chapters. Chapter 1 gives the background of the project and its purpose, which is to assess the water consumption of geothermal technologies and identify areas where water availability may present a challenge to utility-scale geothermal development. Water consumption refers to the water that is withdrawn from a resource such as a river, lake, or nongeothermal aquifer that is not returned to that resource. The geothermal electricity generation technologies evaluated in this study include conventional hydrothermal flash and binary systems, as well as EGSs that rely on engineering a productive reservoir where heat exists, but where water availability or permeability may be limited. Chapter 2 describes the approach and methods for this work and identifies the four power plant scenarios evaluated: a 20-MW EGS binary plant, a 50-MW EGS binary plant, a 10-MW hydrothermal binary plant, and a 50-MW hydrothermal flash plant. The methods focus on (1) the collection of data to improve estimation of EGS stimulation volumes, aboveground operational consumption for all geothermal technologies, and belowground operational consumption for EGS; and (2) the mapping of the geothermal and water resources of the western United States to assist in the identification of potential water challenges to geothermal growth. Chapters 3 and 4 present the water requirements for the power plant life cycle. Chapter 3 presents the results of the current data collection effort, and Chapter 4 presents the normalized volume of fresh water consumed at each life cycle stage per lifetime energy output for the power plant scenarios evaluated. Over the life cycle of a geothermal power plant, from construction through 30 years of operation, the majority of water is consumed by plant operations. For the EGS binary scenarios, where dry cooling was assumed, belowground operational water loss is the greatest contributor depending upon the physical and operational conditions of the reservoir. Total life cycle water consumption requirements for air-cooled EGS binary scenarios vary between 0.22 and 1.85 gal/kWh, depending upon the extent of belowground operational water consumption. The air-cooled hydrothermal binary and flash plants experience far less fresh water consumption over the life cycle, at 0.04 gal/kWh. Fresh water requirements associated with air- cooled binary operations are primarily from aboveground water needs, including dust control, maintenance, and domestic use. Although wet-cooled hydrothermal flash systems require water for cooling, these plants generally rely upon the geofluid, fluid from the geothermal reservoir, which typically has high salinity and total dissolved solids concentration and is much warmer than normal groundwater sources, for their cooling water needs; thus,

Clark, Corrie E. [Environmental Science Division] [Environmental Science Division; Harto, Christopher B. [Environmental Science Division] [Environmental Science Division; Schroeder, Jenna N. [Environmental Science Division] [Environmental Science Division; Martino, Louis E. [Environmental Science Division] [Environmental Science Division; Horner, Robert M. [Environmental Science Division] [Environmental Science Division

2013-11-05T23:59:59.000Z

109

Soy-Based, Water-Cooled, TC W-III Two Cycle Engine Oil  

SciTech Connect (OSTI)

The objective of this project was to achieve technical approval and commercial launch for a biodegradable soy oil-based, environmentally safe, TC W-III performance, water-cooled, two cycle engine oil. To do so would: (1) develop a new use for RBD soybean oil; (2) increase soybean utilization in North America in the range of 500 K-3.0 MM bushels; and (3) open up supply opportunities of 1.5-5.0 MM bushels worldwide. These goals have been successfully obtained.

Scharf, Curtis R.; Miller, Mark E.

2003-08-30T23:59:59.000Z

110

General features of direct-cycle, supercritical-pressure, light-water-cooled reactors  

SciTech Connect (OSTI)

The concept of direct-cycle, supercritical-pressure, light-water-cooled reactors is developed. Breeding is possible in the tight lattice core. The power output can be maximized in the fast converter reactor. The gross thermal efficiency of the high temperature reactor adopting Inconel as fuel cladding is expected to be 44.8%. The plant system is similar to the supercritical-fossil-fired power plant which adopts once-through type coolant circulation system. The volume and height of the containment are approximately half of the BWR. The basic safety principles follows those of LWRs. The reactor will solve the economic problems of LWR and LMFBR.

Oka, Y.; Koshizuka, S. [Univ. of Tokyo (Japan). Nuclear Engineering Research Lab.

1996-07-01T23:59:59.000Z

111

Adapting urban water systems to a changing climate: Lessons from the millennium drought in southeast Australia  

E-Print Network [OSTI]

city vulnerable to water shortages during periods of very5 To bu?er against water shortages, Melbourne recentlyhas shown that a severe water shortage can drive behavior

2013-01-01T23:59:59.000Z

112

Optimal Response to Periodic Shortage: Engineering/Economic Analysis for a Large Urban Water District  

E-Print Network [OSTI]

The total supply shortages and water supply accomplishmentsThe total supply shortage and water supply accomplishmentsTotal supply shortage Total water supply accomplishments

Fisher, Anthony C.; Fullerton, David; Hatch, Nile; Reinelt, Peter

1992-01-01T23:59:59.000Z

113

Our Environment in Hot Water: Comparing Water Heaters, A Life Cycle Approach Comparing Tank and Tankless Water Heaters in California  

E-Print Network [OSTI]

consumer/your_home/water_ heating/index.cfm/mytopic=12980heating is a large source of energy use in California homes.heating is the third largest source of energy use in homes [

Lu, Alison

2011-01-01T23:59:59.000Z

114

How the Drudgery of Getting Water Shapes Women's Lives in Low-income Urban Communities  

E-Print Network [OSTI]

supply practices: rainwater harvesting, water theft, gifts/to water, in this case from roof rainwater harvesting tanks.

Crow, Ben D; McPike, Jamie

2009-01-01T23:59:59.000Z

115

This article has been published in: Urban Water Journal, Vol. 9(1), 2012 Rainwater harvesting to control stormwater runoff in suburban areas.  

E-Print Network [OSTI]

to store and/or to infiltrate it. These devices, widely known as Best Management Practices (BMP;2 storm events, they fill up and store part of the rainfall. This water is definitely abstracted from1 This article has been published in: Urban Water Journal, Vol. 9(1), 2012 Rainwater harvesting

Paris-Sud XI, Université de

116

Simulating and Optimizing Storm Water Management Strategies in an Urban Watershed  

E-Print Network [OSTI]

, and more frequent flooding. Best Management Practices (BMP) and Low Impact development (LID) are a few of the set of measures which are used to mitigate the impact of urbanization. Peak flow, runoff volume are few of the conventional metrics which are used...

Damodaram, Chandana

2011-02-22T23:59:59.000Z

117

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

All but two Life-Cycle Assessment (LCA) studies make nofuels. The term “life-cycle assessment” (LCA) is used toInput-Output Life Cycle Assessment (EIO-LCA) US 2002 (428)

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

118

Land and Water Use, CO2 Emissions, and Worker Radiological Exposure Factors for the Nuclear Fuel Cycle  

SciTech Connect (OSTI)

The Department of Energy Office of Nuclear Energy’s Fuel Cycle Technologies program is preparing to evaluate several proposed nuclear fuel cycle options to help guide and prioritize Fuel Cycle Technology research and development. Metrics are being developed to assess performance against nine evaluation criteria that will be used to assess relevant impacts resulting from all phases of the fuel cycle. This report focuses on four specific environmental metrics. • land use • water use • CO2 emissions • radiological Dose to workers Impacts associated with the processes in the front-end of the nuclear fuel cycle, mining through enrichment and deconversion of DUF6 are summarized from FCRD-FCO-2012-000124, Revision 1. Impact estimates are developed within this report for the remaining phases of the nuclear fuel cycle. These phases include fuel fabrication, reactor construction and operations, fuel reprocessing, and storage, transport, and disposal of associated used fuel and radioactive wastes. Impact estimates for each of the phases of the nuclear fuel cycle are given as impact factors normalized per unit process throughput or output. These impact factors can then be re-scaled against the appropriate mass flows to provide estimates for a wide range of potential fuel cycles. A companion report, FCRD-FCO-2013-000213, applies the impact factors to estimate and provide a comparative evaluation of 40 fuel cycles under consideration relative to these four environmental metrics.

Brett W Carlsen; Brent W Dixon; Urairisa Pathanapirom; Eric Schneider; Bethany L. Smith; Timothy M. AUlt; Allen G. Croff; Steven L. Krahn

2013-08-01T23:59:59.000Z

119

Modeling Urban Storm-Water Quality Treatment: Model Development and Application to a Surface Sand Filter  

E-Print Network [OSTI]

water impacts has led us to the develop- ment of different storm-water treatment strategies. Previous knowledge regarding traditional water treatment systems drink- ing and wastewater and the evaluation

120

Urban Economics  

E-Print Network [OSTI]

property taxation regional economics residential segregationexternalities urban economics urban production externalitiesproperty taxation regional economics residential segregation

Quigley, John M.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Sensitivity Analysis of Reprocessing Cooling Times on Light Water Reactor and Sodium Fast Reactor Fuel Cycles  

SciTech Connect (OSTI)

The purpose of this study is to quantify the effects of variations of the Light Water Reactor (LWR) Spent Nuclear Fuel (SNF) and fast reactor reprocessing cooling time on a Sodium Fast Reactor (SFR) assuming a single-tier fuel cycle scenario. The results from this study show the effects of different cooling times on the SFR’s transuranic (TRU) conversion ratio (CR) and transuranic fuel enrichment. Also, the decay heat, gamma heat and neutron emission of the SFR’s fresh fuel charge were evaluated. A 1000 MWth commercial-scale SFR design was selected as the baseline in this study. Both metal and oxide CR=0.50 SFR designs are investigated.

R. M. Ferrer; S. Bays; M. Pope

2008-04-01T23:59:59.000Z

122

E-Print Network 3.0 - angeles water supply Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

eenveng@sbcglobal.net 1 REDUCING GREENHOUSE GAS IMPACTS IN Summary: SUPPLY WASTEWATER TREATMENT END-USERS tons-CO2yr 12 GHG Reductions from Santa Rosa's Urban Water Cycle... ,000...

123

ECONOMIC LOSSES FOR URBAN WATER SCARCITY IN Marion W. Jenkins1  

E-Print Network [OSTI]

utility average cost pricing) and had unrestricted availability (Dmax in Figure 1). In any period when value or utility to customers of the foregone water use unadjusted for other costs or benefits) or reduced customer water charges (Price line

Pasternack, Gregory B.

124

8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource or risks? 13-16 May 2008  

E-Print Network [OSTI]

or risks? 13-16 May 2008 Identification of particulate heavy metal pollution sources in urban river of their different sources and their eventual mobility in the environment. Keywords Heavy metal carrier; binding water quality criteria. This includes heavy metal concentration, which remains a main concern

Paris-Sud XI, Université de

125

9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009  

E-Print Network [OSTI]

stormwater management; source control; hydrological models; sustainability; Best Management Practices, especially in U.S. literature, as Best Management Practices (BMPs). Other denominations exist, referring9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters

Paris-Sud XI, Université de

126

Evaluation of the Daylight Cycle of Model-Predicted Cloud Amount and Condensed Water Path over Europe with Observations from MSG SEVIRI  

E-Print Network [OSTI]

Evaluation of the Daylight Cycle of Model-Predicted Cloud Amount and Condensed Water Path over accurate information on diurnal cycles during daylight hours of cloud properties over land and ocean surfaces. This paper evaluates the daylight cycle of CA and CWP as predicted by the Regional Atmospheric

Stoffelen, Ad

127

How the Drudgery of Getting Water Shapes Women's Lives in Low-income Urban Communities  

E-Print Network [OSTI]

Nouakchott, Kampala, and Dar es Salaam) the ? gure neverof water provision in Dar es Salaam, Tanzania. Swaminathan (and Distribution in Dar es Salaam, Tanzania. Stockholm:

Crow, Ben D; McPike, Jamie

2009-01-01T23:59:59.000Z

128

Vegetated Roof Water-Balance Model: Experimental and Model Results  

E-Print Network [OSTI]

urbanization effects on the water cycle. Although there are many stormwater best management practices (BMPs (ET) and soil media water storage between storm events. Lazzarin et al. (2005) estimated that ET ratesVegetated Roof Water-Balance Model: Experimental and Model Results James A. Sherrard Jr.1

129

TYPES OF FLOODING IN AUSTRALIA Floods are part of the natural water cycle or a "Hydrologic Cycle". In this natural cycle, the energy of the sun causes  

E-Print Network [OSTI]

to carry the water that has entered the river network, and the banks overflow. The area that gets inundated an emergency kit containing: o a first aid kit o a torch and portable radio with spare batteries o candles records, including wills, birth/marriage certificates, banking, financial records, etc · keep a list

Greenslade, Diana

130

Thermochemical water-splitting cycle, bench-scale investigations and process engineering. Annual report, October 1, 1978-September 30, 1979  

SciTech Connect (OSTI)

A program to investigate thermochemical water splitting has been under way at General Atomic Company (GA) since October 1972. This document is an annual progress report of Department of Energy (DOE) sponsored process development work on the GA sulfur-iodine thermochemical water splitting cycle. The work consisted of laboratory bench-scale investigations, demonstration of the process in a closed-loop cycle demonstrator, and process engineering design studies. A bench-scale system, consisting of three subunits, has been designed to study the cycle under continuous flow conditions. The designs of subunit I, which models the main solution reaction and product separation, and subunit II, which models the concentration and decomposition of sulfuric acid, were presented in an earlier annual report. The design of subunit III, which models the purification and decomposition of hydrogen iodide, is given in this report. Progress on the installation and operation of subunits I and II is described. A closed-loop cycle demonstrator was installed and operated based on a DOE request. Operation of the GA sulfur-iodine cycle was demonstrated in this system under recycle conditions. The process engineering addresses the flowsheet design of a large-scale production process consisting of four chemical sections (I through IV) and one helium heat supply section (V). The completed designs for sections I through V are presented. The thermal efficiency of the process calculated from the present flowsheet is 47%.

Caprioglio, G.; McCorkle, K.H.; Besenbruch, G.E.; Rode, J.S.

1980-03-01T23:59:59.000Z

131

Reductions in Urban Outdoor Water Use as an Adaptation to Rising  

E-Print Network [OSTI]

Supplies in Southern California ENVIRONMENTAL AREA RESEARCH PIER Environmental Research www, including hydropower and power plant cooling. Increasing evidence shows that climate change landscaping and irrigation. A potential response to the predicted decrease in future water supplies

132

Modeling urban runoff characteristics  

E-Print Network [OSTI]

the impact that urban1zation has on storm runoff. An accurate method is required to model urban watersheds and to simulate storm runoff. Research Objectives The purpose of this research was to quantitatively define the effect that urbanization has... are typical in the sense that they follow the steps outlined above. These models include: the British Road Research Laboratory Nodel (RRL), 1962; the Chicago Hydrograph Method (NERO), 1970; the Environmental Protection Agency Storm Water Management Model...

Garcia, Alfred

1987-01-01T23:59:59.000Z

133

The fuel cycle economics of improved uranium utilization in light water reactors  

E-Print Network [OSTI]

A simple fuel cycle cost model has been formulated, tested satisfactorily (within better than 3% for a wide range of cases)

Abbaspour, Ali Tehrani

134

AN AMMONIA-WATER ABSORPTION-HIAT-PUMP CYCLE Donald Kuhlenschmidt, Member ASHRAE  

E-Print Network [OSTI]

,000 Btuh) input unit reported. KLY WORDS Absorption Heat-pump Air conditioning heating Ammonia Donald conditioning chillers. The authors are involved in a project to use this cycle in an air source heat pump the cycle, comment on the design differences compared to the air conditioning application and report

Oak Ridge National Laboratory

135

Irrigation in California's Central Valley strengthens the southwestern U.S. water cycle  

E-Print Network [OSTI]

water resources management in the southwestern United States andStates, a better understanding of how irrigation impacts local-to- remote climate and waterUnited States, or more generally for accelerating the water

Lo, Min-Hui; Famiglietti, James S

2013-01-01T23:59:59.000Z

136

Eddy Fluxes and Sensitivity of the Water Cycle to Spatial Resolution in Idealized Regional Aquaplanet Model Simulations  

SciTech Connect (OSTI)

A multi-scale moisture budget analysis is used to identify the mechanisms responsible for the sensitivity of the water cycle to spatial resolution using idealized regional aquaplanet simulations. In the higher resolution simulations, moisture transport by eddies fluxes dry the boundary layer enhancing evaporation and precipitation. This effect of eddies, which is underestimated by the physics parameterizations in the low-resolution simulations, is found to be responsible for the sensitivity of the water cycle both directly, and through its upscale effect, on the mean circulation. Correlations among moisture transport by eddies at adjacent ranges of scales provides the potential for reducing this sensitivity by representing the unresolved eddies by their marginally resolved counterparts.

Hagos, Samson M.; Leung, Lai-Yung R.; Gustafson, William I.; Singh, Balwinder

2014-02-28T23:59:59.000Z

137

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

Water Intensity of Transportation. Environmental Science &and Energy Use in Transportation (GREET) Model, Version 1.5.Water Intensity of Transportation. Environmental Science &

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

138

UrbanSolutionsCenter Water and Nutrient Management in Nursery and Greenhouse Crops  

E-Print Network [OSTI]

impacts. · Selection of best management irrigation and fertilization practices that effectively enhance is not only inefficient but also has environmental consequences, i.e., soil and ground water pollution. This project focuses on development of efficient fertilization and irrigation programs and practices that can

139

BICYCLE URBANISM SYMPOSIUM KEYNOTE ADDRESS  

E-Print Network [OSTI]

for expanding their cycling networks, combined with a range of complementary programs such as bike sharing, bikeBICYCLE URBANISM SYMPOSIUM KEYNOTE ADDRESS Cycling to the Future: Lessons from Cities across the Globe In this talk, John Pucher documents the boom in cycling in both European and North American cities

Hochberg, Michael

140

Water quality and urban runoff in selected canal communities along the Texas coast  

E-Print Network [OSTI]

at points along the canal. There are data included in this report on monthly canal water quality for the seven study areas. Samples were analyzed for coli- forms, nitrite, nitrate, Kjeldahl nitrogen (organic nitrogen), phos- phates, TOC, BOD , dissolved..., temperature and salinity profiles, and Rhodamine dye dis- placement. The purpose of this report is to evaluate the sources of pollu- tional loading within the study communities . These data along with information from the literature on coastal canals...

Messenger, Allen Lester

1979-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Effective Modeling of Urban Water Systems Conference Proceedings, Monograph 13. (edited by W. James, K.N. Irvine, E.A. McBean, and R.E. Pitt). CHI. Guelph, Ontario,  

E-Print Network [OSTI]

Effective Modeling of Urban Water Systems Conference Proceedings, Monograph 13. (edited by W. James Systems Conference Proceedings, Monograph 13. (edited by W. James, K.N. Irvine, E.A. McBean, and R.E. Pitt

Pitt, Robert E.

142

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

Drinking Water: Methyl Tertiary Butyl Ether (MTBE).http://www.epa.gov/mtbe/water.htm (11/30/10), Chiu, Y. W. ;LCFS LCI LP LPG MED MRO MSF MTBE MWD MWDOC NAICS NERC NETL

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

143

Bark Beetles and Watersheds Workshop: Impacts to the Hydrologic Cycle and Water  

E-Print Network [OSTI]

--Research Approaches and Results: Water Quantity/Hydrologic Impacts Water and energy balance in a forested stand University Union, Parlor A (3rd Floor) University of Utah Salt Lake City, December 1, 2011 Video Conference

Tipple, Brett

144

Thermochemical water-splitting cycle, bench-scale investigations, and process engineering. Final report, February 1977-December 31, 1981  

SciTech Connect (OSTI)

The sulfur-iodine water-splitting cycle is characterized by the following three reactions: 2H/sub 2/O + SO/sub 2/ + I/sub 2/ ..-->.. H/sub 2/SO/sub 4/ + 2HI; H/sub 2/SO/sub 4/ ..-->.. H/sub 2/O + SO/sub 2/ + 1/2 O/sub 2/; and 2HI ..-->.. H/sub 2/ + I/sub 2/. This cycle was developed at General Atomic after several critical features in the above reactions were discovered. These involved phase separations, catalytic reactions, etc. Estimates of the energy efficiency of this economically reasonable advanced state-of-the-art processing unit produced sufficiently high values (to approx.47%) to warrant cycle development effort. The DOE contract was largely directed toward the engineering development of this cycle, including a small demonstration unit (CLCD), a bench-scale unit, engineering design, and costing. The work has resulted in a design that is projected to produce H/sub 2/ at prices not yet generally competitive with fossil-fuel-produced H/sub 2/ but are projected to be favorably competitive with respect to H/sub 2/ from fossil fuels in the future.

Norman, J.H.; Besenbruch, G.E.; Brown, L.C.; O'Keefe, D.R.; Allen, C.L.

1982-05-01T23:59:59.000Z

145

Rev. 4/1/2009 Second Forum on Energy & Water Sustainability  

E-Print Network [OSTI]

:00 Decision Support for Integrated Water-Energy Planning (V. Tidwell et al.) 16:30 Decision Support System Choices (R. Newmark et al.) 13:30 Reducing Greenhouse Gas Impacts in the Urban Water Cycle Through: Modeling Energy & Water Systems 15:30 Integrated System Dynamics Model to Assess Options for Emissions

Keller, Arturo A.

146

A Critical Analysis of Technological Innovation and Economic Development in Southern California's Urban Water Reuse And Recycling Industry  

E-Print Network [OSTI]

www.water.ca.gov/ California State Water Resources ControlCalifornia State Water Resources Control Board (CASWRCB),Issues. Western States Water Council. July, 2011 Branco,

Pilip-Florea, Shadrach Jay

2012-01-01T23:59:59.000Z

147

A Critical Analysis of Technological Innovation and Economic Development in Southern California's Urban Water Reuse And Recycling Industry  

E-Print Network [OSTI]

Water Task Force, “Water Recycling 2030: Recommendation’s of2007. Water Funding Recycling Program Strategic Plan. Web.grants_loans/water_recycling/docs/strategicplan2007.pdf

Pilip-Florea, Shadrach Jay

2012-01-01T23:59:59.000Z

148

Vol. 16, No. 2 May 2006Global Energy and Water Cycle Experiment World Climate Research Programme  

E-Print Network [OSTI]

's climate system is an energy cycle that converts absorbed solar radiation into heat and associated, its rapid rotation, and its elliptical orbit about the sun, the solar heating is neither uniform nor ARE A NET SINK OF ENERGY Left panel shows zonal, seasonal average generation of available potential energy

149

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

Photovoltaic Produced Water Renewable Fuels Association ReliabilityFirst Corporation Reverse Osmosis Steam Assisted Gravity Drainage Soybean Meal Synthetic Crude Oil SERC Reliability

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

150

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

by Distillation and by Reverse Osmosis - Trends Towards theReliabilityFirst Corporation Reverse Osmosis Steam Assistedwater through reverse osmosis (30). While saline water can

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

151

Integrated supercritical water gasification combined cycle (IGCC) systems for improved performance and reduced operating costs in existing plants  

SciTech Connect (OSTI)

A revolutionary hydrothermal heat recovery steam generator (HRSG) is being developed to produce clean fuels for gas turbines from slurries and emulsions of opportunity fuels. Water can be above 80% by weight and solids below 20%, including coal fines, coal water fuels, biomass, composted municipal refuse, sewage sludge and bitumen/Orimulsion. The patented HRSG tubes use a commercial method of particle scrubbing to improve heat transfer and prevent corrosion and deposition on heat transfer surfaces. A continuous-flow pilot plant is planned to test the HRSG over a wide range of operating conditions, including the supercritical conditions of water, above 221 bar (3,205 psia) and 374 C (705 F). Bench scale data shows, that supercritical water gasification below 580 C (1,076 F) and low residence time without catalysts or an oxidizer can produce a char product that can contain carbon up to the amount of fixed carbon in the proximate analysis of the solids in the feed. This char can be burned with coal in an existing combustion system to provide the heat required for gasification. The new HRSG tubes can be retrofitted into existing power plant boilers for repowering of existing plants for improved performance and reduced costs. A special condensing turbine allows final low-temperature cleaning and maintains quality and combustibility of the fuel vapor for modern gas turbine in the new Vapor Transmission Cycle (VTC). Increased power output and efficiency can be provided for existing plants, while reducing fuel costs. A preliminary computer-based process simulation model has been prepared that includes material and energy balances that simulate commercial-scale operations of the VTC on sewage sludge and coal. Results predict over 40% HHV thermal efficiency to electric power from sewage sludge at more than 83% water by weight. The system appears to become autothermal (no supplemental fuel required) at about 35% fixed carbon in the feed. Thus, bituminous and lignite coal slurries could be gasified at less than 25% coal and more than 75% water. Preliminary life cycle cost analyses indicate that disposal fees for sewage sludge improve operating economics over fuel that must be purchased, the cost and schedule advantages of natural gas-fired combined cycle systems are preserved. Sensitivity analyses show that increasing capital costs by 50% can be offset by an increase in sewage sludge disposal fees of $10/metric ton.

Tolman, R.; Parkinson, W.J.

1999-07-01T23:59:59.000Z

152

Building the urban river edge : proposed connections to the water at the foot of Boston's Beacon Hill  

E-Print Network [OSTI]

The core of this investigation is based on the design of built form at the public urban river edge. It proposes the transformation of a portion of public park edge into public built edge. The Esplanade embankment at the ...

Gorini, Daniel

1994-01-01T23:59:59.000Z

153

Assessment of Possible Cycle Lengths for Fully Encapsulated Microstructure fueled light water reactor Concepts  

SciTech Connect (OSTI)

The use of TRISO-particle-based dispersion fuel within SiC matrix and cladding materials has the potential to allow the design of extremely safe LWRs with failure-proof fuel. This paper examines the feasibility of LWR-like cycle length for such fuel with the imposed constraint of strictly retaining the original geometry of the fuel pins and assemblies. The motivation for retaining the original geometry is to provide the ability to incorporate the fuel “as-is” into existing LWRs while retaining their thermal–hydraulic characteristics. Another mandatory constraint is use of low enriched uranium (at or below 20 w/o). The feasibility of using this fuel is assessed by looking at two factors: cycle lengths and fuel material failure rates. Other considerations (e.g., safety parameters such as reactivity coefficients, feedback, etc.) were not considered at this stage of the study. The study includes the examination of increases in the TRISO kernel sizes without changing the thickness of any of the coating layers. In addition, cases where the buffer layer thickness is allowed to vary are also considered. The study shows that a naïve use of UO2 (even up to 20 w/o enrichment) results in cycle lengths too short to be practical for existing LWR designs and operational demands. Increasing fissile inventory within the fuel compacts shows that acceptable cycle lengths can be achieved. The increase of fissile inventory can be accomplished through multiple means, including higher particle packing fraction, higher enrichment, larger fuel kernel sizes, and the use of higher density fuels (that contain a higher number of U atoms per unit volume). In this study, starting with the recognized highest packing fraction practically achievable (44%), combinations of the other means have been evaluated. The models demonstrate cycle lengths comparable to those of ordinary LWRs. As expected, TRISO particles with extremely large kernels are shown to fail under all considered scenarios. In contrast, the designs that do not depart too drastically from those of the nominal NGNP HTR fuel TRISO particles are shown to perform satisfactorily and display a high rates of survival under all considered scenarios.

R. Sonat Sen; Michael A. Pope; Abderrafi M. Ougouag; Kemal O. Pasamehmetoglu

2013-02-01T23:59:59.000Z

154

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

to current U.S. crude oil production of 7.2 million barrelsIn contrast to crude oil production, natural gas extractionProduced Water from Production of Crude Oil, Natural Gas,

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

155

Life-Cycle Water Impacts of U.S. Transportation Fuels  

E-Print Network [OSTI]

CO, 1974; An Assessment of Oil Shale Technologies. Office ofWater Requirements for an Oil Shale Plant Based on ParahoControls for a Commercial Oil Shale Industry. Volume 1. An

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

156

The hydrological cycle tirelessly distributes water between land, ocean, atmosphere and cryosphere. Stefan Hagemann and his colleagues at the Max Planck Institute for Meteorology  

E-Print Network [OSTI]

substance across the globe, but they also carry along thermal energy in the process ­ albeit hidden into liquid water or freezes to form ice. Conversely, energy input is necessary for ice to melt or sublimeThe hydrological cycle tirelessly distributes water between land, ocean, atmosphere and cryosphere

157

Redox cycle stability of mixed oxides used for hydrogen generation in the cyclic water gas shift process  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: • Fe{sub 2}O{sub 3} modified with CaO, SiO{sub 2} and Al{sub 2}O{sub 3} was studied in cyclic water gas shift reactor. • For the first time stability of such oxides were tested for 100 redox cycles. • Optimally added oxides significantly improved the activity and the stability of Fe{sub 2}O{sub 3}. • Increased stability was attributed to the impediment of neck formation. - Abstract: Repeated cycles of the reduction of Fe{sub 3}O{sub 4} with reductive gas, e.g. hydrogen and subsequent oxidation of the reduced iron material with water vapor can be harnessed as a process for the production of pure hydrogen. The redox behavior of iron oxide modified with various amounts of SiO{sub 2}, CaO and Al{sub 2}O{sub 3} was investigated in the present study. The total amount of the additional metal oxides was always below 15 wt%. The samples were prepared by co-precipitation using urea hydrolysis method. The influence of various metal oxides on the hydrogen production capacity and the material stability was studied in detail in terms of temperature-programmed reduction (TPR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and BET analysis. Furthermore, the activity and the stability of the samples were tested in repeated reduction with diluted H{sub 2} and re-oxidation cycles with H{sub 2}O. The results indicate that combination of several oxides as promoter increases the stability of the iron oxide material by mitigating the sintering process. The positive influence of the oxides in stabilizing the iron oxide material is attributed to the impediment of neck formation responsible for sintering.

Datta, Pradyot, E-mail: pradyot.datta@gmail.com

2013-10-15T23:59:59.000Z

158

A Critical Analysis of Technological Innovation and Economic Development in Southern California's Urban Water Reuse And Recycling Industry  

E-Print Network [OSTI]

Richardson, Mark 2009. Siemens Water Technologies Company2011. www. 3news.co.nz Siemens Water Technologies, 2012.conglomerations, US Filter, now Siemens Water Technologies

Pilip-Florea, Shadrach Jay

2012-01-01T23:59:59.000Z

159

A Critical Analysis of Technological Innovation and Economic Development in Southern California's Urban Water Reuse And Recycling Industry  

E-Print Network [OSTI]

for the Purification of Water with Systems (a NationalWater Recycling . 99 8. Groundwater Replenishment System Purification

Pilip-Florea, Shadrach Jay

2012-01-01T23:59:59.000Z

160

The use of kelp sieve tube sap metal composition to characterize urban runoff in southern California coastal waters  

E-Print Network [OSTI]

The use of kelp sieve tube sap metal composition to characterize urban runoff in southern California a b s t r a c t This study introduces an innovative method for biomonitoring using giant kelp analyses indicate that polluted seawater may affect kelp uptake of metals essential for cellular function

Manley, Steven L.

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Direct-contact condensers for open-cycle OTEC applications: Model validation with fresh water experiments for structured packings  

SciTech Connect (OSTI)

The objective of the reported work was to develop analytical methods for evaluating the design and performance of advanced high-performance heat exchangers for use in open-cycle thermal energy conversion (OC-OTEC) systems. This report describes the progress made on validating a one-dimensional, steady-state analytical computer of fresh water experiments. The condenser model represents the state of the art in direct-contact heat exchange for condensation for OC-OTEC applications. This is expected to provide a basis for optimizing OC-OTEC plant configurations. Using the model, we examined two condenser geometries, a cocurrent and a countercurrent configuration. This report provides detailed validation results for important condenser parameters for cocurrent and countercurrent flows. Based on the comparisons and uncertainty overlap between the experimental data and predictions, the model is shown to predict critical condenser performance parameters with an uncertainty acceptable for general engineering design and performance evaluations. 33 refs., 69 figs., 38 tabs.

Bharathan, D.; Parsons, B.K.; Althof, J.A.

1988-10-01T23:59:59.000Z

162

Urbanizing terrains  

E-Print Network [OSTI]

Urban "sprawl"in the East Attica area of Athens has dramatically changed the former rural economy in a manner consistent with the urbanizing terrain's underlying properties: agricultural subdivisions, existing centres, ...

Romanos, Christoforos

2008-01-01T23:59:59.000Z

163

A Critical Analysis of Technological Innovation and Economic Development in Southern California's Urban Water Reuse And Recycling Industry  

E-Print Network [OSTI]

news-service/huge-lack-of-water- in-california-means-big-crop irrigation due to lack of steady water sources (CA DWR,concerned over the lack of a water industry trade lobby, ala

Pilip-Florea, Shadrach Jay

2012-01-01T23:59:59.000Z

164

A Critical Analysis of Technological Innovation and Economic Development in Southern California's Urban Water Reuse And Recycling Industry  

E-Print Network [OSTI]

country also targeted “clean technologies”, such as waters renewable energy and clean technology industries. (ibid,and clean tech. In clean technologies, in which water

Pilip-Florea, Shadrach Jay

2012-01-01T23:59:59.000Z

165

Atmospheric branch of the hydrologic cycle affecting Texas for water year 1959  

E-Print Network [OSTI]

-. 03 . 13 -. 05 . 23 . 01 . 07 . 02 , 08 21 22 B 0 3 m ~a ql 2 e / / / / Zone I Zone II N D J F M A M J Time (mo) J A S 2 4J a, Q A -. 4 Figure 4. Average precipitable water and departures from normal over Texas... ~ S sin (N - D) Illa] ]. 11b] 12 Amarillo (5 N th or x N Oklahoma City (4) land (6) Mid Figure 2. Construction of base leg, z (dashed), and outward-directed normal, d, for Amarillo. where S is the wind speed in m/sec, N is the angle...

McKay, Charles Michael

1961-01-01T23:59:59.000Z

166

Assessment of Possible Cycle Lengths for Fully-Ceramic Micro-Encapsulated Fuel-Based Light Water Reactor Concepts  

SciTech Connect (OSTI)

The tri-isotropic (TRISO) fuel developed for High Temperature reactors is known for its extraordinary fission product retention capabilities [1]. Recently, the possibility of extending the use of TRISO particle fuel to Light Water Reactor (LWR) technology, and perhaps other reactor concepts, has received significant attention [2]. The Deep Burn project [3] currently focuses on once-through burning of transuranic fissile and fissionable isotopes (TRU) in LWRs. The fuel form for this purpose is called Fully-Ceramic Micro-encapsulated (FCM) fuel, a concept that borrows the TRISO fuel particle design from high temperature reactor technology, but uses SiC as a matrix material rather than graphite. In addition, FCM fuel may also use a cladding made of a variety of possible material, again including SiC as an admissible choice. The FCM fuel used in the Deep Burn (DB) project showed promising results in terms of fission product retention at high burnup values and during high-temperature transients. In the case of DB applications, the fuel loading within a TRISO particle is constituted entirely of fissile or fissionable isotopes. Consequently, the fuel was shown to be capable of achieving reasonable burnup levels and cycle lengths, especially in the case of mixed cores (with coexisting DB and regular LWR UO2 fuels). In contrast, as shown below, the use of UO2-only FCM fuel in a LWR results in considerably shorter cycle length when compared to current-generation ordinary LWR designs. Indeed, the constraint of limited space availability for heavy metal loading within the TRISO particles of FCM fuel and the constraint of low (i.e., below 20 w/0) 235U enrichment combine to result in shorter cycle lengths compared to ordinary LWRs if typical LWR power densities are also assumed and if typical TRISO particle dimensions and UO2 kernels are specified. The primary focus of this summary is on using TRISO particles with up to 20 w/0 enriched uranium kernels loaded in Pressurized Water Reactor (PWR) assemblies. In addition to consideration of this 'naive' use of TRISO fuel in LWRs, several refined options are briefly examined and others are identified for further consideration including the use of advanced, high density fuel forms and larger kernel diameters and TRISO packing fractions. The combination of 800 {micro}m diameter kernels of 20% enriched UN and 50% TRISO packing fraction yielded reactivity sufficient to achieve comparable burnup to present-day PWR fuel.

R. Sonat Sen; Michael A. Pope; Abderrafi M. Ougouag; Kemal O. Pasamehmetoglu

2012-04-01T23:59:59.000Z

167

Urbanizing Watersheds and Changing River Flood Dynamics: Implications for Urban Wetland Restoration  

E-Print Network [OSTI]

Urbanization alters river hydrology, morphology, water quality, and habitat and ecology. Most of these associated changes are due to an increase in impervious surface cover (ISC) throughout the watershed. But the spatial location of urban areas...

Simmons, M.

2003-01-01T23:59:59.000Z

168

Photovoltaics Life Cycle Analysis  

E-Print Network [OSTI]

1 Photovoltaics Life Cycle Analysis Vasilis Fthenakis Center of Life Cycle Analysis Earth & Environmental Engineering Department Columbia University and National Photovoltaic (PV) EHS Research Center (air, water, solid) M, Q E PV array Photovoltaic modules Balance of System (BOS) (Inverters

169

Strategies for systemic urban constructed wetlands  

E-Print Network [OSTI]

As a result of ubiquitous impermeable surfaces, conventional water management and stormwater infrastructure, and the resultant degradation of natural hydrologic networks, most American urban areas have suffered severely ...

Balderas-Guzmán, Celina

2013-01-01T23:59:59.000Z

170

September 10, 2007 Annotated Bibliography of Urban Wet Weather Flow Literature from 1996  

E-Print Network [OSTI]

Agency Wet-Weather Flow Program Urban Watershed Management Branch Water Supply & Water Resources Division........................................................................................................................................................................ 21 Heavy metals

Pitt, Robert E.

171

Scale-4 Analysis of Pressurized Water Reactor Critical Configurations: Volume 4-Three Mile Island Unit 1 Cycle 5  

SciTech Connect (OSTI)

The requirements of ANSI/ANS-8.1 specify that calculational methods for away-from-reactor criticality safety analyses be validated against experimental measurements. If credit is to be taken for the reduced reactivity of burned or spent fuel relative to its original ''fresh'' composition, it is necessary to benchmark computational methods used in determining such reactivity worth against spent fuel reactivity measurements. This report summarizes a portion of the ongoing effort to benchmark away-from-reactor criticality analysis methods using relevant and well-documented critical configurations from commercial pressurized water reactors. The analysis methodology utilized for all calculations in this report is based on the modules and data associated with the SCALE-4 code system. Isotopic densities for spent fuel assemblies in the core were calculated using the SCALE-4 SAS2H analytical sequence. The sources of data and the procedures for deriving SAS2H input parameters are described in detail. The SNIKR code family was used to extract the necessary isotopic densities from SAS2H results and to provide the data in the format required for SCALE criticality analysis modules. The CSASN analytical sequence in SCALE-4 was used to perform resonance processing of cross sections. The KENO V.a module of SCALE-4 was used to calculate the effective multiplication factor (k{sub eff}) for the critical configuration. The SCALE-4 27-group burnup library containing ENDF/B-IV (actinides) and ENDF/B-V (fission products) data was used for all calculations. This volume of the report documents a reactor critical calculation for GPU Nuclear Corporation's Three Mile Island Unit 1 (TMI-1) during hot, zero-power startup testing for the beginning of cycle 5. This unit and cycle were selected because of their relevance in spent fuel benchmark applications: (1) cycle 5 startup occurred after an especially long downtime of 6.6 years; and (2) the core consisted primarily (75%) of burned fuel, with all fresh fuel loaded on the core outer periphery. A k{sub eff} value of 0.9978 {+-} 0.0004 was obtained using two million neutron histories in the KENO V.a model. This result is close to the known critical k{sub eff} of 1.0 for the actual core and is consistent with other mixed-oxide criticality benchmarks. Thus this method is shown to be valid for spent fuel applications in burnup credit analyses.

DeHart, M.D.

1995-01-01T23:59:59.000Z

172

Urban Economics  

E-Print Network [OSTI]

E. , Hanushek, E. and Quigley, J. 2004. Opportunities, race,Baltimore, MD: John Hopkins Press. Quigley, J. 2001. Theof Regional Science 35, Quigley, J. 1998. Urban diversity

Quigley, John M.

2006-01-01T23:59:59.000Z

173

Prospects for and problems of using light-water supercritical-pressure coolant in nuclear reactors in order to increase the efficiency of the nuclear fuel cycle  

SciTech Connect (OSTI)

Trends in the development of the power sector of the Russian and world power industries both at present time and in the near future are analyzed. Trends in the rise of prices for reserves of fossil and nuclear fuels used for electricity production are compared. An analysis of the competitiveness of electricity production at nuclear power plants as compared to the competitiveness of electricity produced at coal-fired and natural-gas-fired thermal power plants is performed. The efficiency of the open nuclear fuel cycle and various versions of the closed nuclear fuel cycle is discussed. The requirements on light-water reactors under the scenario of dynamic development of the nuclear power industry in Russia are determined. Results of analyzing the efficiency of fuel utilization for various versions of vessel-type light-water reactors with supercritical coolant are given. Advantages and problems of reactors with supercritical-pressure water are listed.

Alekseev, P. N.; Semchenkov, Yu. M.; Sedov, A. A., E-mail: sedov@dhtp.kial.ru; Subbotin, S. A.; Chibinyaev, A. V. [Russian Research Centre Kurchatov Institute (Russian Federation)

2011-12-15T23:59:59.000Z

174

Identification of Management and Planning Problems of Urban Water Resources in the Metropolitan Area of Greater San Antonio  

E-Print Network [OSTI]

including the inventory and planning control for both surface and ground Water Resource Management of the San Antonio area are presented. Emphasis has been placed upon the identification of the probabilistic nature of various decision-making parameters...

Garner, K.; Shih, C. S.

175

The strategic use of small scale water providers : an analysis of private-sector participation in peri-urban Maputo  

E-Print Network [OSTI]

During Portuguese colonial rule biased service provision throughout the 20th century resulted in a city that today has spatially segregated water services distinguishable along racial lines. In 1975, a newly independent ...

Bhatt, Jigar D. (Jigar Dinker)

2006-01-01T23:59:59.000Z

176

Urban PDE dynamics: Situating PRIPODE research in  

E-Print Network [OSTI]

development on the urban fringe Investment in real estate drives up rents (through land speculation) The poor urban policymakers 1. Water & sanitation 2. Waste disposal 3. Slum & Informal settlements 4. Air pollution #12;9 Water & Sanitation Source: UN Statistics Division 2005 Total House Connections MDG Target 10

Columbia University

177

Infrastructure Ecology for Sustainable and Resilient Urban Infrastructure Design  

SciTech Connect (OSTI)

The population growth coupled with increasing urbanization is predicted to exert a huge demand on the growth and retrofit of urban infrastructure, particularly in water and energy systems. The U.S. population is estimated to grow by 23% (UN, 2009) between 2005 and 2030. The corresponding increases in energy and water demand were predicted as 14% (EIA, 2009) and 20% (Elcock, 2008), respectively. The water-energy nexus needs to be better understood to satisfy the increased demand in a sustainable manner without conflicting with environmental and economic constraints. Overall, 4% of U.S. power generation is used for water distribution (80%) and treatment (20%). 3% of U.S. water consumption (100 billion gallons per day, or 100 BGD) and 40% of U.S. water withdrawal (340 BGD) are for thermoelectric power generation (Goldstein and Smith, 2002). The water demand for energy production is predicted to increase most significantly among the water consumption sectors by 2030. On the other hand, due to the dearth of conventional water sources, energy intensive technologies are increasingly in use to treat seawater and brackish groundwater for water supply. Thus comprehending the interrelation and interdependency between water and energy system is imperative to evaluate sustainable water and energy supply alternatives for cities. In addition to the water-energy nexus, decentralized or distributed concept is also beneficial for designing sustainable water and energy infrastructure as these alternatives require lesser distribution lines and space in a compact urban area. Especially, the distributed energy infrastructure is more suited to interconnect various large and small scale renewable energy producers which can be expected to mitigate greenhouse gas (GHG) emissions. In the case of decentralized water infrastructure, on-site wastewater treatment facility can provide multiple benefits. Firstly, it reduces the potable water demand by reusing the treated water for non-potable uses and secondly, it also reduces the wastewater load to central facility. In addition, lesser dependency on the distribution network contributes to increased reliability and resiliency of the infrastructure. The goal of this research is to develop a framework which seeks an optimal combination of decentralized water and energy alternatives and centralized infrastructures based on physical and socio-economic environments of a region. Centralized and decentralized options related to water, wastewater and stormwater and distributed energy alternatives including photovoltaic (PV) generators, fuel cells and microturbines are investigated. In the context of the water-energy nexus, water recovery from energy alternatives and energy recovery from water alternatives are reflected. Alternatives recapturing nutrients from wastewater are also considered to conserve depleting resources. The alternatives are evaluated in terms of their life-cycle environmental impact and economic performance using a hybrid life cycle assessment (LCA) tool and cost benefit analysis, respectively. Meeting the increasing demand of a test bed, an optimal combination of the alternatives is designed to minimize environmental and economic impacts including CO2 emissions, human health risk, natural resource use, and construction and operation cost. The framework determines the optimal combination depending on urban density, transmission or conveyance distance or network, geology, climate, etc. Therefore, it will be also able to evaluate infrastructure resiliency against physical and socio-economic challenges such as population growth, severe weather, energy and water shortage, economic crisis, and so on.

Jeong, Hyunju [Georgia Institute of Technology; Pandit, Arka [Georgia Institute of Technology; Crittenden, John [Georgia Institute of Technology; Xu, Ming [University of Michigan; Perrings, Charles [Arizona State University; Wang, Dali [ORNL; Li, Ke [University of Georgia; French, Steve [Georgia Institute of Technology

2010-10-01T23:59:59.000Z

178

EXTENSION WATER SUMMIT PRIORITY: WATER CONSERVATION  

E-Print Network [OSTI]

programs) · Audience: homeowners Outcome 4: Increase water reuse and recycling programs · Example program: Water harvesting ­ rain barrels and cisterns · Audience: home owners #12;: Water conservation. Conserve Florida's finite water resources by teaching rural, suburban and urban

Kane, Andrew S.

179

Simulation and performance analysis of basic GAX and advanced GAX cycles with ammonia/water and ammonia/water/LiBr absorption fluids  

SciTech Connect (OSTI)

The generator-absorber heat exchange (GAX) and branched GAX cycles are generally considered with NH{sub 3}/H{sub 2}O as their working fluid. The potential consequences of using a ternary mixture of NH{sub 3}/H{sub 2}O/LiBr (advanced fluids) in the GAX and Branched GAX (advanced cycles) are discussed in this study. A modular steady state absorption simulation model(ABSIM) was used to investigate the potential of combining the above advanced cycles with the advanced fluids. ABSIM is capable of modeling varying cycle configurations with different working fluids. Performance parameters of the cycles, including coefficient of performance (COP) and heat duties, were investigated as functions of different operating parameters in the cooling mode for both the NH {sub 3}/H{sub 2}O binary and the NH{sub 3}/H{sub 2}O/LiBr ternary mixtures. High performance potential of GAX and branched GAX cycles using the NH{sub 3}/H{sub 2}O/LiBr ternary fluid mixture was achieved especially at the high range of firing temperatures exceeding 400{degrees}F. The cooling COP`s have been improved by approximately 21% over the COP achieved with the NH{sub 3}/H{sub 2}O binary mixtures. These results show the potential of using advanced cycles with advanced fluid mixtures (ternary or quaternary fluid mixtures).

Zaltash, A.; Grossman, G.

1996-03-01T23:59:59.000Z

180

Flexible urbanism  

E-Print Network [OSTI]

This thesis seeks to find a new approach/method towards urbanization in existing low density neighborhoods in major metropolitan cities in the United States. The near South side of the city of Chicago (a city that carries ...

Anandam, Anahita

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Preliminary studies on the heat exchanger option for S-CO{sub 2} power conversion cycle coupled to water cooled SMR  

SciTech Connect (OSTI)

For more than a half century, the steam Rankine cycle had been the major power conversion cycle for a nuclear power plant. However, as the interest on the next generation reactors grows, a variety of alternative power conversion systems have been studied. Among them, the S-CO{sub 2} cycle (Supercritical carbon dioxide Brayton cycle) is considered as a promising candidate due to several benefits such as 1) Relatively high thermal efficiency at relatively low turbine inlet temperature, 2) High efficiency with simple lay-out 3) Compactness of turbo-machineries. 4) Compactness of total cycle combined with PCHE (Printed Circuit Heat Exchanger). According to the conventional classification of heat exchangers (HE), there are three kind of HE, 1) Tubular HEs, 2) Plate-type HEs, 3) Extended surface HEs. So far, the researcher has mostly assumed PCHE type HE for the S-CO{sub 2} cycle due to its compactness with reasonably low pressure drop. However, PCHE is currently one of the most expensive components in the cycle, which can have a negative effect on the economics of the cycle. Therefore, an alternative for the HE should be seriously investigated. By comparing the operating condition (pressure and temperature) there are three kind of HE in the S-CO{sub 2} cycle, 1) IHX (Intermediate Heat exchanger) 2) Recuperator and 3) Pre-cooler. In each heat exchanger, hot side and cold side coolants are different, i.e. reactor coolant to S-CO{sub 2} (IHX), S-CO{sub 2} to S-CO{sub 2}(Recuperator), S-CO{sub 2} to water (Pre-cooler). By considering all the attributes mentioned above, all existing types of heat exchangers are compared to find a possible alternative to PCHE. The comparing factors are 1) Size(volume), 2) Cost. Plate fin type HEs are considered to be the most competitive heat exchanger regarding the size and the cost after some improvements on the design limit are made. (authors)

Ahn, Y.; Lee, J. [Dept. of Nuclear and Quantum Engineering, Korea Advanced Inst. of Science and Technology, 373-1 Guseong-dong Yuseong-gu, Daejeon, 305-701 (Korea, Republic of); Lee, J. I. [Dept. of Nuclear and Quantum Engineering, Korea Advanced Inst. of Science and Technology, 373-1 Guseong-dong Yuseong-gu, Daejeon, 305-701 (Korea, Republic of); Dept. of Nuclear Engineering, Khalifa Univ. of Science, Technology and Research (KUSTAR), P.O.Box 127788, Abu Dhabi (United Arab Emirates)

2012-07-01T23:59:59.000Z

182

ASSESSMENT OF POSSIBLE CYCLE LENGTHS FOR FULLY-CERAMIC MICRO-ENCAPSULATED FUEL-BASED LIGHT WATER REACTOR CONCEPTS  

SciTech Connect (OSTI)

The use of TRISO-particle-based dispersion fuel within SiC matrix and cladding materials has the potential to allow the design of extremely safe LWRs with failure-proof fuel. This paper examines the feasibility of LWR-like cycle length for such a low enriched uranium fuel with the imposed constraint of strictly retaining the original geometry of the fuel pins and assemblies. The motivation for retaining the original geometry is to provide the ability to incorporate the fuel 'as-is' into existing LWRs while retaining their thermal-hydraulic characteristics. The feasibility of using this fuel is assessed by looking at cycle lengths and fuel failure rates. Other considerations (e.g., safety parameters, etc.) were not considered at this stage of the study. The study includes the examination of different TRISO kernel diameters without changing the coating layer thicknesses. The study shows that a naive use of UO{sub 2} results in cycle lengths too short to be practical for existing LWR designs and operational demands. Increasing fissile inventory within the fuel compacts shows that acceptable cycle lengths can be achieved. In this study, starting with the recognized highest packing fraction practically achievable (44%), higher enrichment, larger fuel kernel sizes, and the use of higher density fuels have been evaluated. The models demonstrate cycle lengths comparable to those of ordinary LWRs. As expected, TRISO particles with extremely large kernels are shown to fail under all considered scenarios. In contrast, the designs that do not depart too drastically from those of the nominal NGNP HTR fuel TRISO particles are shown to perform satisfactorily and display a high rates of survival under all considered scenarios. Finally, it is recognized that relaxing the geometry constraint will result in satisfactory cycle lengths even using UO{sub 2}-loaded TRISO particles-based fuel with enrichment at or below 20 w/o.

R. Sonat Sen; Michael A. Pope; Abderrafi M. Ougouag; Kemal Pasamehmetoglu; Francesco Venneri

2012-04-01T23:59:59.000Z

183

Transmutation, Burn-Up and Fuel Fabrication Trade-Offs in Reduced-Moderation Water Reactor Thorium Fuel Cycles - 13502  

SciTech Connect (OSTI)

Multiple recycle of long-lived actinides has the potential to greatly reduce the required storage time for spent nuclear fuel or high level nuclear waste. This is generally thought to require fast reactors as most transuranic (TRU) isotopes have low fission probabilities in thermal reactors. Reduced-moderation LWRs are a potential alternative to fast reactors with reduced time to deployment as they are based on commercially mature LWR technology. Thorium (Th) fuel is neutronically advantageous for TRU multiple recycle in LWRs due to a large improvement in the void coefficient. If Th fuel is used in reduced-moderation LWRs, it appears neutronically feasible to achieve full actinide recycle while burning an external supply of TRU, with related potential improvements in waste management and fuel utilization. In this paper, the fuel cycle of TRU-bearing Th fuel is analysed for reduced-moderation PWRs and BWRs (RMPWRs and RBWRs). RMPWRs have the advantage of relatively rapid implementation and intrinsically low conversion ratios. However, it is challenging to simultaneously satisfy operational and fuel cycle constraints. An RBWR may potentially take longer to implement than an RMPWR due to more extensive changes from current BWR technology. However, the harder neutron spectrum can lead to favourable fuel cycle performance. A two-stage fuel cycle, where the first pass is Th-Pu MOX, is a technically reasonable implementation of either concept. The first stage of the fuel cycle can therefore be implemented at relatively low cost as a Pu disposal option, with a further policy option of full recycle in the medium term. (authors)

Lindley, Benjamin A.; Parks, Geoffrey T. [University of Cambridge, Cambridge (United Kingdom)] [University of Cambridge, Cambridge (United Kingdom); Franceschini, Fausto [Westinghouse Electric Company LLC, Cranberry Township, PA (United States)] [Westinghouse Electric Company LLC, Cranberry Township, PA (United States)

2013-07-01T23:59:59.000Z

184

Groundwater Management and the Cost of Reduced Surface Water Deliveries to Urban Areas: The Case of the Central and West Coast Basins of Southern California  

E-Print Network [OSTI]

represents the annual water shortage that cannot be met fromservice associated with water shortage events. Total Costscost to consumers of a water shortage. 11 LCPSIM optimizes

Sunding, David L.; Hamilton, Stephen F; Ajami, Newsha K

2009-01-01T23:59:59.000Z

185

Water Privatisation   

E-Print Network [OSTI]

This dissertation deals with the policy issues of large-scale, urban water privatisation projects in the face of uncertainty and variability. The main objective is to evaluate whether a single policy approach, namely privatisation associated...

Zölls, Elisa

2011-08-17T23:59:59.000Z

186

Urban/Suburban Landscape & Conservation  

E-Print Network [OSTI]

of groundwater 5) Increased production of CO2 #12;3 Ground water pollution due to "storm run-off" - Construction.S. was fairly distinctly split into localized urban- industrial landscapes and widespread rural landscapes to development pressure in terms of housing, infrastructure and industry Impacting habitat cont. 1) Fragmentation

Dever, Jennifer A.

187

Water by truck in Mexico City  

E-Print Network [OSTI]

Supply of water to urban households by tanker truck in developing and advanced developing countries is often associated with early stages of urbanization or with the private markets on which water vendors serve households ...

Pike, Jill (Jill Susan)

2005-01-01T23:59:59.000Z

188

Modeling the effect of soil structure on water flow and isoproturon dynamics in an agricultural field receiving repeated urban waste compost application  

E-Print Network [OSTI]

field receiving repeated urban waste compost application Vilim Filipovi1,2,3 , Yves Coquet2 , Valérie properties. Tillage practices and compost amendments can modify soil structure and create heterogeneity and compost application on transport processes. A modeling study was performed to evaluate how the presence

Boyer, Edmond

189

8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource or risks? 13-16 May 2008  

E-Print Network [OSTI]

or risks? 13-16 May 2008 Urban wastewater reuse for irrigated agriculture in Jordan: Soil sustainability that suitable soil management strategies, such as periodic leaching and nutrient management are required on soil sustainability was investigated by means of soil sampling and analysis combined with interviews

Paris-Sud XI, Université de

190

9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009  

E-Print Network [OSTI]

, sanitation and electricity. Hardly 40 % of Yaoundé households live in these conditions. · Poor urban. That means the use of chemicals. Sanitation issues have led to the discharge of untreated wastewater due to the complex procedure to obtain land property. It is very expensive for poor households

Paris-Sud XI, Université de

191

Advanced thermochemical hydrogen cycles  

SciTech Connect (OSTI)

The overall objective of this program is to contribute to the development of practical thermochemical cycles for the production of hydrogen from water. Specific goals are: investigate and evaluate the technical and economic viability of thermochemical cycles as an advanced technology for producing hydrogen from water; investigate and evaluate the engineering principles involved in interfacing individual thermochemical cycles with the different thermal energy sources (high temperature fission, solar, and fusion); and conduct a continuing research and development effort to evaluate the use of solid sulfates, oxides and other compounds as potentially advanced cycles and as alternates to H/sub 2/SO/sub 4/ based cycles. Basic thermochemistry studies have been completed for two different steps in the decomposition of bismuth sulfate. Two different bismuth sulfate cycles have been defined for different sulfuric acid strengths. The eventual best cycle will depend on energy required to form sulfuric acid at different concentrations. A solids decomposition facility has been constructed and practical studies of solid decompositions are being conducted. The facility includes a rotary kiln system and a dual-particle fluidized bed system. Evaluation of different types of cycles for coupling with different heat sources is continuing.

Hollabaugh, C.M.; Bowman, M.G.

1981-01-01T23:59:59.000Z

192

COMPARATIVE STUDY ON EXHAUST EMISSIONS FROM DIESEL- AND CNG-POWERED URBAN BUSES  

SciTech Connect (OSTI)

Couple years ago, ADEME engaged programs dedicated to the urban buses exhaust emissions studies. The measures associated with the reduction of atmospheric and noise pollution has particular importance in the sector of urban buses. In many cases, they illustrate the city's environmental image and contribute to reinforcing the attractiveness of public transport. France's fleet in service, presently put at about 14,000 units, consumes about 2 per cent of the total energy of city transport. It causes about 2 per cent of the HC emissions and from 4 to 6 per cent of the NOx emissions and particles. These vehicles typically have a long life span (about 15 years) and are relatively expensive to buy, about 150.000 euros per unit. Several technical solutions were evaluated to quantify, on a real condition cycle for buses, on one hand pollutants emissions, fuel consumption and on the other hand reliability, cost in real existing fleet. This paper presents main preliminary results on urban buses exhaust emission on two different cases: - existing Diesel buses, with fuel modifications (Diesel with low sulphur content), Diesel with water emulsion and bio-Diesel (30% oil ester in standard Diesel fuel); renovating CNG powered Euro II buses fleet, over representative driving cycles, set up by ADEME and partners. On these cycles, pollutants (regulated and unregulated) were measured as well as fuel consumption, at the beginning of a program and one year after to quantify reliability and increase/decrease of pollutants emissions. At the same time, some after-treatment technologies were tested under real conditions and several vehicles. Information such as fuel consumption, lubricant analysis, problem on the technology were following during a one year program. On the overall level, it is the combination of various action, pollution-reduction and renewal that will make it possible to meet the technological challenge of reducing emissions and fuel consumption by urban bus networks.

COROLLER, P; PLASSAT, G

2003-08-24T23:59:59.000Z

193

9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009  

E-Print Network [OSTI]

. Selected significant findings to be discussed include water consumption per capita distribution user; and the conflicts related with the water supply and sewage systems; Water consumption per capita. However, most of the time, the mean or average value of water consumption per c

Boyer, Edmond

194

On the Diurnal Cycle of Deep Convection, High-Level Cloud, and Upper Troposphere Water Vapor in the Multiscale Modeling Framework  

SciTech Connect (OSTI)

The Multiscale Modeling Framework (MMF), also called ‘‘superparameterization’’, embeds a cloud-resolving model (CRM) at each grid column of a general circulation model to replace traditional parameterizations of moist convection and large-scale condensation. This study evaluates the diurnal cycle of deep convection, high-level clouds, and upper troposphere water vapor by applying an infrared (IR) brightness temperature (Tb) and a precipitation radar (PR) simulator to the CRM column data. Simulator results are then compared with IR radiances from geostationary satellites and PR reflectivities from the Tropical Rainfall Measuring Mission (TRMM). While the actual surface precipitation rate in the MMF has a reasonable diurnal phase and amplitude when compared with TRMM observations, the IR simulator results indicate an inconsistency in the diurnal anomalies of high-level clouds between the model and the geostationary satellite data. Primarily because of its excessive high-level clouds, the MMF overestimates the simulated precipitation index (PI) and fails to reproduce the observed diurnal cycle phase relationships among PI, high-level clouds, and upper troposphere relative humidity. The PR simulator results show that over the tropical oceans, the occurrence fraction of reflectivity in excess of 20 dBZ is almost 1 order of magnitude larger than the TRMM data especially at altitudes above 6 km. Both results suggest that the MMF oceanic convection is overactive and possible reasons for this bias are discussed. However, the joint distribution of simulated IR Tb and PR reflectivity indicates that the most intense deep convection is found more often over tropical land than ocean, in agreement with previous observational studies.

Zhang, Yunyan; Klein, Stephen A.; Liu, Chuntao; Tian, Baijun; Marchand, Roger T.; Haynes, J. M.; McCoy, Renata; Zhang, Yuying; Ackerman, Thomas P.

2008-08-22T23:59:59.000Z

195

Water supply analysis for restoring the Colorado River Delta, Mexico  

E-Print Network [OSTI]

to Pay for Additional Transboundary Water Flows from the US.2001). "Improving California Water Management: Optimizingloss functions to value urban water scarcity in California."

Medellin-Azuara, Josue; Lund, Jay R.; Howitt, Richard E.

2007-01-01T23:59:59.000Z

196

Water resources planning under climate change and variability  

E-Print Network [OSTI]

Scenario to Climatic Changes. Water Resources Management 19:2006) Quantifying the Urban Water Supply Impacts of Climateto the Shape of Supply? Water Demand Under Heterogeneous

O'Hara, Jeffrey Keith

2007-01-01T23:59:59.000Z

197

Evaluation of the tritium content in light water reactor control and absorber rods to obtain data for the fuel cycle backend  

SciTech Connect (OSTI)

Tritium inventories and tritium distribution have been determined in boron glass absorber rods discharged from a pressurized water reactor first-cycle core and in spent boron carbide (B/sub 4/C) control rods from a boiling water reactor. The total tritium inventory in the boron glass absorber rods from the Stade nuclear reactor amounts to approx. =8.0 x 10/sup 10/ Bq (2.2 Ci) per rod. Of this, 99.6% was fixed in the boron glass itself and 0.4% in the Al/sub 2/O/sub 3/ pellets. The 4 x 10/sup -3/% fractions in the tube cladding and support pipe and the 1 x 10/sup -2/% fraction in the fill gas accounted for an insignificant part of the total tritium inventory of the rod. This experimentally determined tritium inventory was a factor of 5 larger than that suggested by the calculated estimate. The discrepancy between analyzed and calculated values can be explained by tritium formation from lithium impurities in the boron glass, where a 30-ppm lithium content would be adequate for this tritium inventory to be generated by the reaction /sup 6/Li(n,..cap alpha..)/sup 3/H. Evaluation of the B/sub 4/C control rods from the Lingen nuclear reactor after 3 yr of operation gave a 3.2 x 10/sup 10/Bq(0.85-Ci)tritium inventory per B/sub 4/C rod, while the total tritium inventory for a control rod assembly containing 60 B/sub 4/C rods was approx. =1.9 x 10/sup 12/ Bq (50 Ci). The tritium generated was essentially bound 100% in the B/sub 4/C, since the hulls contained only 6 x 10/sup -3/% and the fill gas only 2 x 10/sup -4/%.

Bleier, A.; Neeb, K.H.; Gelfort, E.; Mischke, J.

1986-08-01T23:59:59.000Z

198

A model of stable geomorphic form for an urban stream, College Station, Texas  

E-Print Network [OSTI]

the transmission of water to the drainage network. Conversely, in urban areas, only a small percentage of rain water can enter the subsurface, with the result that greater quantities of water reach the stream drainage system, arriving shortly after the storm... these processes, frequently to problem levels. In an urban stream system, large volumes of water enter the system within a very short time period, resulting in both high stream velocities and erosion. Extensive erosion in urban areas, especially in areas...

Woodhouse, Elizabeth Gail

1988-01-01T23:59:59.000Z

199

Duty Cycle Analysis & Tools: Maximizing Vehicle Performance (Presentation)  

SciTech Connect (OSTI)

Shows that the benefits of using hybrid vehicle trucks in fleets depends on the duty cycle, or how the vehicles will be driven (e.g., stop and go) over a particular route (e.g., urban or rural).

Walkowicz, K.

2009-10-28T23:59:59.000Z

200

Contextualizing urban mobile fabrics  

E-Print Network [OSTI]

This thesis is focus on the urban fabric issues. To be more specific, I will focus on the "Mobile Fabrics" within the larger Asian urban context. Instead of working with a specific geographical site; I will focus on the ...

Lin, Michael Chia-Liang

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

A study of a zone approach to IAEA (International Atomic Energy Agency) safeguards: The low-enriched-uranium zone of a light-water-reactor fuel cycle  

SciTech Connect (OSTI)

At present the IAEA designs its safeguards approach with regard to each type of nuclear facility so that the safeguards activities and effort are essentially the same for a given type and size of nuclear facility wherever it may be located. Conclusions regarding a state are derived by combining the conclusions regarding the effectiveness of safeguards for the individual facilities within a state. In this study it was convenient to define three zones in a state with a closed light-water-reactor nuclear fuel cycle. Each zone contains those facilities or parts thereof which use or process nuclear materials of the same safeguards significance: low-enriched uranium, radioactive spent fuel, or recovered plutonium. The possibility that each zone might be treated as an extended material balance area for safeguards purposes is under investigation. The approach includes defining the relevant features of the facilities in the three zones and listing the safeguards activities which are now practiced. This study has focussed on the fresh-fuel zone, the several facilities of which use or process low-enriched uranium. At one extreme, flows and inventories would be verified at each material balance area. At the other extreme, the flows into and out of the zone and the inventory of the whole zone would be verified. There are a number of possible safeguards approaches which fall between the two extremes. The intention is to develop a rational approach which will make it possible to compare the technical effectiveness and the inspection effort for the facility-oriented approach, for the approach involving the zone as a material balance area, and for some reasonable intermediate safeguards approaches.

Fishbone, L.G.; Higinbotham, W.A.

1986-06-01T23:59:59.000Z

202

Sources and Fates of Dissolved Organic Carbon in Rural and Urban Watersheds in Brazos County, Texas  

E-Print Network [OSTI]

to frequent exposure to high sodium irrigation water. The results indicate that sodium is a major driver of DOC in the system. Sound management decisions concerning irrigation water chemistry and urban development might eventually emerge to protect water...

Cioce, Danielle

2012-10-19T23:59:59.000Z

203

Department of Entomology JAPANESE BEETLES IN THE URBAN LANDSCAPE  

E-Print Network [OSTI]

Department of Entomology E-75-W JAPANESE BEETLES IN THE URBAN LANDSCAPE Timothy J. Gibb of the Japanese beetle are found in rural and urban areas throughout Indiana.This insect is most damaging tolawns, E) must first be diluted in water, then applied as a spray. Both spray and granular applications

Ginzel, Matthew

204

Groundwater Management and the Cost of Reduced Surface Water Deliveries to Urban Areas: The Case of the Central and West Coast Basins of Southern California  

E-Print Network [OSTI]

basin to recover the economic incentives for water trading.Economic incentives for inter-basin transfers arise when thein which the economic incentive to trade implies a movement

Sunding, David L.; Hamilton, Stephen F; Ajami, Newsha K

2009-01-01T23:59:59.000Z

205

Life Cycle Cost Housing Need and Sustainability  

E-Print Network [OSTI]

Life Cycle Cost Housing Need and Sustainability Abstract: Jordan is actually facing a rapid urban became difficult to sustain especially concerning the slum areas and the environmental pollution due which could contribute to increase the productivity and sustainability taking into consideration

206

Climate change, urbanization, and optimal long-term floodplain Tingju Zhu,1  

E-Print Network [OSTI]

. Ritzema (2007), Climate change, urbanization, and optimal long-term floodplain protection, Water ResourClimate change, urbanization, and optimal long-term floodplain protection Tingju Zhu,1 Jay R. Lund-protected floodplains and economic aspects of adaptation to increasing long-term flood risk due to urbanization

Pasternack, Gregory B.

207

E-Print Network 3.0 - abandoned urban brownfield Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and goods Urban and rural Public and private... and scrubbers RemediaAon Water and wastewater treatment ... Source: Fenster, Sam - Computer Engineering program City College, City...

208

Methodologies for Analyzing Impact of Urbanization on Irrigation Districts  

E-Print Network [OSTI]

and structural image information. By overlapping urbanization maps to the water distribution network, we identified critical areas of impact. This impact was expressed as density of network fragments per unit area, or Network Fragmentation Index (NFI). A...

Bonaiti, G.; Fipps, G.

209

Measuring and moderating the water resource impact of biofuel production and trade  

E-Print Network [OSTI]

consequential  life  cycle   assessment  (LCA). 11   Water  water  life  cycle  assessment  (LCA)   as  they  have  with  Life  Cycle  Assessment  (LCA)  methodologies  could  

Fingerman, Kevin Robert

2012-01-01T23:59:59.000Z

210

Modeling sediment in stormwater runoff from urban areas  

E-Print Network [OSTI]

Protection Agency's (EPA); Storm Water Management Model (SWMM), (1972) and the U. S. Army Corps of Engineer's (USACOE); Storm, Treatment, Overflow and Runoff Model (STORM), (1976) both assumed a linear rate of sediment accumulation on urban watersheds... discharging stormwater runoff into receiving waters. These finalized rules set up a two-part permit application process for cities and urbanized counties. The first part of the permit application process includes inventoring storm-generated pollutants...

Haster, Thomas Wayne

1991-01-01T23:59:59.000Z

211

Restoration projects within urban systems frequently encounter  

E-Print Network [OSTI]

designers to the use of models to predict the discharge associated with bankfull water surface elevation calculated for a given storm event can vary considerably by the use of modeling alone. It is much moreAbstract Restoration projects within urban systems frequently encounter various complexities

Curran, Joanna C.

212

Attitudes and perceptions of urban households in sub-Saharan Africa on water sources, threats and sustainability: A study in Bondo, Kenya  

E-Print Network [OSTI]

, threats and sustainability: A study in Bondo, Kenya Daniel M Nzengya School of Sustainability, Arizona growth is already happening in most of Kenya's cities and towns. In the Lake Victoria region, increasing the danger of water- and sanitation-related diseases. A survey was conducted in Bondo town, Kenya

Hall, Sharon J.

213

8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource or risks? 13-16 May 2008  

E-Print Network [OSTI]

. Keywords water resources; contaminants; pollution; modeling; quality INTRODUCTION In the UK, groundwater or risks? 13-16 May 2008 Measuring groundwater parameters to improve modeling and regulation Alison H accurate groundwater flow models can be created. The results from standard techniques are compared to other

Paris-Sud XI, Université de

214

Artful urban rainwater harvesting.  

E-Print Network [OSTI]

??Until recently, stormwater management has been so integrated into the urban environment that the importance of proper stormwater management has not translated to the minds… (more)

Sparnicht, Christopher William

2012-01-01T23:59:59.000Z

215

Cycle cover with short cycles Nicole Immorlica  

E-Print Network [OSTI]

Introduction Given a graph and a subset of marked elements (nodes, edges, or some combination thereof), a cycleCycle cover with short cycles Nicole Immorlica£ Mohammad Mahdian£ Vahab S. Mirrokni£ Abstract Cycle for variants of cycle covering problems which bound the size and/or length of the covering cycles

Immorlica, Nicole

216

FEBRUARY 2013 WATER technical features  

E-Print Network [OSTI]

produced and distributed drinking water while sewers collected wastewater for treatment at remote plants, solutions to wastewater infrastructure need to be effective in protecting public health and preserving water the potential to achieve these goals in rural areas, peri- urban developments, small towns and urban centres

217

An Urban Parameterization for a Global Climate Model. Part II: Sensitivity to Input Parameters and the Simulated Urban Heat Island in Offline Simulations  

E-Print Network [OSTI]

tempera- tures of urban systems as impervious fraction increases. In general, these findings are in agreement with those observed for real urban ecosystems. Thus, the model appears to be a useful tool for examining the nature of the urban climate within... of the physical processes controlling energy and water fluxes and 2) the charac- terization of urban morphology and urban materials with respect to aerodynamic, radiative, and heat trans- fer properties (e.g., Terjung and O’Rourke 1980; Arn- field 2000; Masson...

Oleson, Keith W.; Bonan, Gordon B.; Feddema, Johannes J.; Vertenstein, M.

2008-01-01T23:59:59.000Z

218

An Improved Stochastic Optimization Model for Water Supply ...  

E-Print Network [OSTI]

Mar 9, 2014 ... Abstract: This study investigates a pump scheduling problem for the collection, transfer and storage of water in water supply systems in urban ...

Jonathan De La Vega

2014-03-09T23:59:59.000Z

219

Solar hydrogen production using Ce{sub 1-x}Li{sub x}O{sub 2-{delta}} solid solutions via a thermochemical, two-step water-splitting cycle  

SciTech Connect (OSTI)

The reactivity of Ce{sub 1-x}Li{sub x}O{sub 2-{delta}} (x=0.025, 0.05, 0.075 and 0.1) solid solutions during the redox and two-step water-splitting cycles has been investigated in this work. Thermogravimetric analysis (TGA), X-ray diffraction (XRD) patterns and field-emission scanning electron microscopy (FE-SEM) indicate that there are two reaction mechanisms in the O{sub 2}-releasing step and the shift in the reaction mechanisms occurs in the O{sub 2}-releasing step because of sintering at high temperatures, and a decrease in the concentration of lattice oxygen occurs as the O{sub 2}-releasing step proceeds. The reaction in the O{sub 2}-releasing step follows a second-order mechanism over a temperature range of 1000-1170 Degree-Sign C and a contracting-area model over a temperature range of 1170-1500 Degree-Sign C. According to direct gas mass spectroscopy (DGMS), ceria doped at 5 mol% Li exhibits the highest reactivity in the O{sub 2}-releasing step during both redox cycles in air and two-step water-splitting cycles, whereas ceria doped at 2.5 mol% Li yields the highest amount of hydrogen (4.79 ml/g) in the H{sub 2}-generation step during the two-step water-splitting cycles, which is higher than ceria doped with other metals. DGMS and electrochemical impedance spectroscopy (EIS) suggest that the average reaction rate in the H{sub 2}-generation step is influenced by the concentration of extrinsic oxygen vacancies, and thus, the reactivity in the H{sub 2}-generation step, to some degree, could be tuned by varying the concentration of extrinsic oxygen vacancies (Li content). - Graphical abstract: Average reduction fraction of Ce{sub 1-x}Li{sub x}O{sub 2-{delta}} (x=0.025, 0.05, 0.075 and 0.10) solid solutions versus Li content in the O{sub 2}-releasing step during the redox cycles in air and the two-step water-splitting cycles. Highlights: Black-Right-Pointing-Pointer We have investigated Li-doped ceria for hydrogen production using two-step water-splitting cycles. Black-Right-Pointing-Pointer The sintering effect on the reaction mechanisms was first clarified. Black-Right-Pointing-Pointer The shift of reaction mechanisms occurs during the O{sub 2}-releasing step. Black-Right-Pointing-Pointer The reaction-mechanism shift occurs because of sintering at high temperatures. Black-Right-Pointing-Pointer Doping at 2.5 mol% Li results in the highest H{sub 2} yield and cyclability for hydrogen production.

Meng, Qing-Long; Lee, Chong-il; Shigeta, Satoshi [Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo 1528850 (Japan)] [Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo 1528850 (Japan); Kaneko, Hiroshi [Solutions Research Laboratory, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo 1528850 (Japan)] [Solutions Research Laboratory, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo 1528850 (Japan); Tamaura, Yutaka, E-mail: ytamaura@chem.titech.ac.jp [Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo 1528850 (Japan)] [Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo 1528850 (Japan)

2012-10-15T23:59:59.000Z

220

Institute of Water Research Annual Technical Report  

E-Print Network [OSTI]

. One project entitled "Decision Support System for Natural Resource Planning" (02) was funded transfer, urban water systems, water quality, water quality management, watershed management, wetlands and research program on the development of environmental information systems for environmental decision making

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Water+works : a new ecological infrastructure  

E-Print Network [OSTI]

With the global water crisis as catalyst, Water+Works acts as a model for a localized water initiative that will mitigate flooding and provide a freshwater resource in times of crisis, while enriching urban ecosystems and ...

Hedstrom, Lisa Kristin

2011-01-01T23:59:59.000Z

222

Flexible hybrid membrane treatment systems for tailored nutrient management: A new paradigm in urban wastewater treatment  

E-Print Network [OSTI]

in urban wastewater treatment D. Vuono a , J. Henkel a , J. Benecke a , T.Y. Cath a , T. Reid b , L: Sequencing batch reactor Membrane bioreactor Water reclamation Distributed wastewater treatment Tailored, decentralized, and satellite wastewater treatment systems into existing urban water infrastructure

223

PLANNING FOR WATER CONSERVATION Greater Vancouver Regional District  

E-Print Network [OSTI]

of the public and private sectors in providing a supply of high quality urban water? Best management practices in urban areas around the globe, yet per capita water consumption continues to increase. Faced with increasing populations and costs associated with urban growth--related to infrastructure, energy, operation

224

Smart Beijing: Correlation of Urban Electrical Energy Consumption with Urban Environmental Sensing for Optimizing Distribution Planning  

E-Print Network [OSTI]

parameters (air quality, noise pollution, traffic levels, water quality, etc.) in a distributed manner and create anomolies in pollution levels in specific locations, such as sporting events, rallies and fairs pollution and a series of other social problems. The urban electrical energy development has also been

Beigl, Michael

225

The Politics of Pipes: The Persistence of Small Water Networks in Post-Privatization Manila  

E-Print Network [OSTI]

of Water and Sanitation Services for the Peri- urban Poor: AWater and Sanitation Services to the Urban Poor. New Delhi:the Poor in Metro Manila. Jakarta: Water and Sanitation

Cheng, Deborah

2013-01-01T23:59:59.000Z

226

Ideology of urban conservation   

E-Print Network [OSTI]

Although urban heritage has been a research field in the focus of scholars’ attention since the concepts of restoration and rehabilitation of monuments had been extended to entire areas such as historical city centres, ...

Stoica, Ruxandra-Iulia

2011-06-29T23:59:59.000Z

227

Recursive relational urban design  

E-Print Network [OSTI]

This thesis proposes a methodology for the act of urban design that is recursive and centered around explicit relational operations, enabled by taking advantage of computation and parametric techniques. It contains iterative ...

Hillman, Dessen

2014-01-01T23:59:59.000Z

228

Towards sustainable urban communities  

SciTech Connect (OSTI)

Requirements for the assessment tools of buildings have increased, assessing of building components or separate buildings is not enough. Neighbourhoods, built environment, public transportations, and services, should be considered simultaneously. Number of population living in urban areas is high and increasing rapidly. Urbanisation is a major concern due to its detrimental effects on the environment. The aim of this study is to clarify the field of assessment tools for urban communities by analysing the current situation. The focus is on internationally well known assessment tools; BREEAM Communities, CASBEE for Urban Development and LEED for Neigborhood Development. The interest towards certification systems is increasing amongst the authorities, and especially amongst the global investors and property developers. Achieved certifications are expected to bring measureable publicity for the developers. The assessment of urban areas enables the comparison of municipalities and urban areas, and notably supports decision making processes. Authorities, city planners, and designers would benefit most from the use of the tools during the decision making process. - Highlights: Black-Right-Pointing-Pointer The urban assessment tools have strong linkage to the region. Black-Right-Pointing-Pointer The tools promote complementary building and retrofitting existing sites. Black-Right-Pointing-Pointer Sharing knowledge and experiences is important in the development of the tools.

Haapio, Appu, E-mail: appu.haapio@vtt.fi

2012-01-15T23:59:59.000Z

229

Page 1 of 5 Water Governance in Southern Africa  

E-Print Network [OSTI]

Darling Basin, rural water trading, water demand, urban water pricing and management, optimal water allocation Page 1 of 5 Water Governance in Southern Africa: UNESCO Chair in Water Economics and Transboundary Water Governance The ANUUNESCO Chair in Water Economics and Transboundary Water Governance

Botea, Adi

230

E-Print Network 3.0 - aerobic nitrogen cycle Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

biological nitrogen fixation of gaseous nitrogen. The water cycle is important to ecosystem... and Nitrogen Cycles As ... Source: Barboza, Perry - Institute of Arctic Biology,...

231

Sustainable sanitation in urban centres in Southeast Asia  

E-Print Network [OSTI]

In recent decades, poor sanitation services and water pollution have become more serious in the GreaterSustainable sanitation in urban centres in Southeast Asia Several cities in Southeast Asia have. As a result, untreated or poorly treated wastewater finds its way into nearby water bodies. A possible

Richner, Heinz

232

Advanced Electrochemical Technologies for Hydrogen Production by Alternative Thermochemical Cycles  

SciTech Connect (OSTI)

Hydrogen fuel is a potentially major solution to the problem of climate change, as well as addressing urban air pollution issues. But a key future challenge for hydrogen as a clean energy carrier is a sustainable, low-cost method of producing it in large capacities. Most of the world�s hydrogen is currently derived from fossil fuels through some type of reforming processes. Nuclear hydrogen production is an emerging and promising alternative to the reforming processes for carbon-free hydrogen production in the future. This report presents the main results of a research program carried out by a NERI Consortium, which consisted of Penn State University (PSU) (lead), University of South Carolina (USC), Tulane University (TU), and Argonne National Laboratory (ANL). Thermochemical water decomposition is an emerging technology for large-scale production of hydrogen. Typically using two or more intermediate compounds, a sequence of chemical and physical processes split water into hydrogen and oxygen, without releasing any pollutants externally to the atmosphere. These intermediate compounds are recycled internally within a closed loop. While previous studies have identified over 200 possible thermochemical cycles, only a few have progressed beyond theoretical calculations to working experimental demonstrations that establish scientific and practical feasibility of the thermochemical processes. The Cu-Cl cycle has a significant advantage over other cycles due to lower temperature requirements - around 530 oC and below. As a result, it can be eventually linked with the Generation IV thermal power stations. Advantages of the Cu-Cl cycle over others include lower operating temperatures, ability to utilize low-grade waste heat to improve energy efficiency, and potentially lower cost materials. Another significant advantage is a relatively low voltage required for the electrochemical step (thus low electricity input). Other advantages include common chemical agents and reactions going to completion without side reactions, and lower demands on materials of construction. Three university research groups from PSU, USC, and TU as well as a group from ANL have been collaborating on the development of enabling technologies for the Cu-Cl cycle, including experimental work on the Cu-Cl cycle reactions, modeling and simulation, and particularly electrochemical reaction for hydrogen production using a CuCl electrolyzer. The Consortium research was distributed over the participants and organized in the following tasks: (1) Development of CuCl electrolyzer (PSU), (2) Thermodynamic modeling of anolyte solution (PSU), (3) Proton conductive membranes for CuCl electrolysis (PSU), (4) Development of an analytical method for online analysis of copper compounds in highly concentrated aqueous solutions (USC), (5) Electrodialysis as a means for separation and purification of the streams exiting the electrolyzer in the Cu-Cl cycle (USC), (6) Development of nanostructured electrocatalysts for the Cu-Cl electrolysis (USC), (7) Cu-Cl electrolyzer modeling (USC), (8) Aspen Plus modeling of the Cu-Cl thermochemical cycle (TU), (9) International coordination of research on the development of the Cu-Cl thermochemical cycle (ANL). The results obtained in the project clearly demonstrate that the Cu-Cl alternative thermochemical cycle is a promising and viable technology to produce hydrogen efficiently.

The Pennsylvania State Univeristy: Serguei Lvov, Mike Chung, Mark Fedkin, Victor Balashov, Elena, Chalkova, Nikolay Akinfiev; University of South Carolina: Carol Stork, Thomas Davis, Francis Gadala-Maria, Thomas Stanford, John Weidner; Tulane University: Victor Law, John Prindle; ANL: Michele Lewis

2011-01-06T23:59:59.000Z

233

Water Supply Analysis for Restoring the Colorado River Delta, Mexico  

E-Print Network [OSTI]

, Mexico. Potential water sources include reductions in local agricultural and urban water use through and urban water uses were estimated by two ancillary models. The results provide insights into economically promising water supplies for restoration activities. Quantifying the trade-off between agricultural

Pasternack, Gregory B.

234

Architecture & Urban Planning College of Architecture & Urban Planning  

E-Print Network [OSTI]

Architecture & Urban Planning College of Architecture & Urban Planning Architecture (ARCH) 300 projects for the remainder of the term. 560 Macroecon Envir Bus 3.00 ADVISORY, ENFORCED 74595 P RW REC 451

Shyy, Wei

235

Architecture & Urban Planning College of Architecture & Urban Planning  

E-Print Network [OSTI]

Architecture & Urban Planning College of Architecture & Urban Planning Architecture (ARCH) 690 Arc is reserved for Executive MBA students only, and meets from 7/19- 9/6. 637 Macroecon Envir Bus 1.50 ADVISORY

Shyy, Wei

236

Water Basins Civil Engineering  

E-Print Network [OSTI]

Water Basins Civil Engineering Objective · Connect the study of water, water cycle, and ecosystems with engineering · Discuss how human impacts can effect our water basins, and how engineers lessen these impacts: · The basic concepts of water basins are why they are important · To use a topographic map · To delineate

Provancher, William

237

Urban Form and Air Pollution in US Urban Areas!  

E-Print Network [OSTI]

of Minnesota Grant No. 0853467 #12;Air Pollution Impacts on Health 2 EPA, 2010 Ozone PM2.5 PM10 Lead NitrogenUrban Form and Air Pollution in US Urban Areas! Center for Transportation Studies Research #12;Purpose and Research Questions 4 Purpose: Explore relationship between air pollution and urban

Minnesota, University of

238

Be Water Smart  

E-Print Network [OSTI]

of native or non-invasive adapted trees, shrubs, grasses and flowers that can tolerate temporary wet conditions. A layer of mulch prevents weed growth and aids in filtration. These low spots fill with water during periods of heavy rain, helping...W aterSmart, a water conservation program, uses a unique approach to protect and conserve water quality and quantity in upper Texas Gulf Coast urban landscapes. Part of the Texas Coastal Watershed Program (TCWP), WaterSmart is creating rain...

Swyden, Courtney

2006-01-01T23:59:59.000Z

239

Life Cycle Cost Analysis for Sustainable Buildings  

Broader source: Energy.gov [DOE]

To help facility managers make sound decisions, FEMP provides guidance and resources on applying life cycle cost analysis (LCCA) to evaluate the cost-effectiveness of energy and water efficiency investments.

240

California's Water Energy Relationship  

E-Print Network [OSTI]

.........................................................................................................................7 THE ENERGY INTENSITY OF THE WATER USE CYCLE.........................................................................................9 ENERGY INTENSITY IN NORTHERN AND SOUTHERN CALIFORNIA1 CALIFORNIA ENERGY COMMISSION California's Water ­ Energy Relationship Prepared in Support

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

E-Print Network 3.0 - alternate water sources Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Conveyance Water Treatment Distribution Customer Use Wastewater Collection and Treatment 12... ;2000 Urban Water-Related Energy Use Sources ... Source: Keller, Arturo A. -...

242

Cycle Track Lessons Learned  

E-Print Network [OSTI]

Cycle Track Lessons Learned #12;Presentation Overview · Bicycling trends · Cycle track lessons learned · What is a "Cycle track"? · Essential design elements of cycle tracks Separation Width Crossing driveways & low-volume streets Signalized intersections #12;Trend in kilometers cycled per year

Bertini, Robert L.

243

The urban coffee shop  

E-Print Network [OSTI]

This thesis is an investigation of the role of the coffee shop in the urban environment throughout history. Coffee shops spread from the Arab world to Europe and then to the U.S. at the end of the seventeenth century. ...

Chadios, Konstantinos

2005-01-01T23:59:59.000Z

244

architecture architecture urban & regional  

E-Print Network [OSTI]

in architectural design, history, building construction, structures, and environmental technology from ourlandscape architecture architecture urban & regional planning environment + design college of fine-disciplinary studies. 18-to-1 Student-Teacher Ratio You'll enjoy individual, one-on-one attention in your architecture

Hwu, Wen-mei W.

245

UrbanSolutionsCenter Evaluation of Best Management Practices (BMPs) for Reducing Non-Point  

E-Print Network [OSTI]

water bodies. · Reduced erosion from agricultural and urban lands will help sustain soil fertilityUrbanSolutionsCenter Evaluation of Best Management Practices (BMPs) for Reducing Non-Point Source of the reservoir cannot be achieved without identifying, testing and implementing appropriate best management

246

Response of discharge, TSS, and E. coli to rainfall events in urban, suburban, and rural watersheds  

E-Print Network [OSTI]

of the storm-period response of E. coli across an urban and rural gradient, but also lays a foundation of urban development during storm events. Identifying potential factors that affect E. coli concen that the water has been polluted by feces associated with pathogens. Simulation models can play an important role

Zhang, Minghua

247

Urban Ecosystems, 7: 267281, 2004 c 2004 Kluwer Academic Publishers. Manufactured in The Netherlands.  

E-Print Network [OSTI]

the quality and utility of urban growth models. Having an empirical basis for making claims about construction. Fine scale design decisions about storm water movement or planting de- sign are unlikelyUrban Ecosystems, 7: 267­281, 2004 c 2004 Kluwer Academic Publishers. Manufactured

Allan, David

248

Observations and Numerical Simulations of Urban Heat Island and Sea Breeze Circulations over New York City  

E-Print Network [OSTI]

-level pollutant dispersion. When an urban area is located at the coast of a large body of water, complexitiesObservations and Numerical Simulations of Urban Heat Island and Sea Breeze Circulations over New examined during several synoptic scale flow regimes over New York City after the World Trade Center

Raman, Sethu

249

www.exeter.ac.uk/inspiring-science Impact of Climate Change on Urban Flooding  

E-Print Network [OSTI]

www.exeter.ac.uk/inspiring-science Impact of Climate Change on Urban Flooding: a fairy taleMatiCs and PhysiCal sCienCes 2011ceMPS45 Dr Ole Mark is a specialist in climate change and urban water systems-years' experience in both developed and developing countries. Dr Mark is a key partner in the CORFU

Mumby, Peter J.

250

Aquifers and Wetlands SUMMARY: This chapter begins with an overview of the hydrological cycle and  

E-Print Network [OSTI]

cycle and considers the flow of water in wetlands and undergraound. Special attention is paid to flow through vegetated wetlands. 14.1 The Hydrological Cycle Rivers and streams are but a link in the global cycle of water, called the hydro- logical cycle. Approximately half of the solar energy striking

Cushman-Roisin, Benoit

251

Institute of Water Research Annual Technical Report  

E-Print Network [OSTI]

and ground water protection. One project entitled "Decision Support System for Natural Resource Planning" (02 analysis, technology transfer, urban water systems, water quality, water quality management, watershed) was funded to address these problems and issues. In addition, support for the Institute of Water Research

252

Unique Approaches to Water Resources  

E-Print Network [OSTI]

as a result of free trade, atmospheric transport of trace pollutants, and urbanization. Available waterUnique Approaches to Water Resources Education in Florida Watershed Journal Executive Committee Photos courtesy of Dr. Frederick Bloetscher, PE W e are a diverse community of water profes- sionals. We

Central Florida, University of

253

Photo Courtesy of Carlsbad Water Distict Economic Evaluation for Water Recycling  

E-Print Network [OSTI]

-i- Photo Courtesy of Carlsbad Water Distict Economic Evaluation for Water Recycling In Urban Areas................................................... 10 ECONOMIC EVALUATION BY BENEFIT-COST ANALYSIS ............................................................................... 12 FINANCIAL ANALYSIS AND ECONOMIC EVALUATION

Lund, Jay R.

254

Heterogeneous ice nucleation and water uptake by field-collected...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

properties through heterogeneous nucleation is not well understood. Heterogeneous ice nucleation and water uptake by ambient particles collected from urban environments in...

255

Water resources planning under climate change and variability  

E-Print Network [OSTI]

transfers or options. Demand-side management includes thepricing schemes, and demand-side management for urban water,of alternate demand side management, particularly

O'Hara, Jeffrey Keith

2007-01-01T23:59:59.000Z

256

Public Versus Private: Does It Matter for Water Conservation? Insights from California  

E-Print Network [OSTI]

driver of water management was the environmental regulator’sEnvironmental and Resource Economics Marvin S, Guy S (1997) Consuming water: evolving strategies of water managements Urban Water Sector. Environmental Management 41(6):863–877

Kallis, Giorgos; Ray, Isha; Fulton, Julian; McMahon, James E.

2010-01-01T23:59:59.000Z

257

Abundance and Distribution of Africanized Honey Bees in an Urban Environments  

E-Print Network [OSTI]

, and AHB population dynamics. The goal of my dissertation was to understand population dynamics of AHB in urban environments using removal records of AHB colonies in water meter boxes. I have demonstrated useful methods and repeatable procedures to process...

Chen, Szu-Hung

2013-01-18T23:59:59.000Z

258

Development of Criteria for Evaluating Urban River Settings for Tourism-Rereation Use  

E-Print Network [OSTI]

An earlier study, Cultural Benefits from Metropolitan River Recreation--San Antonio Prototype, (Gunn, et al., 1972), revealed that urban water resources can be successfully developed for tourism and recreation. The San Antonio River Walk is a unique...

Gunn, C. A.; Hanna, J. W.; Parenzin, A. J.; Blumberg, F. M.

259

Utvärdering av urban vindkraft; Evaluation of urban windmill.  

E-Print Network [OSTI]

?? NCC har i samarbete med IVL Svenska Miljöinstitutet och Solna Stad startat ett projekt där alternativ energiproduktion i urban miljö ligger i fokus. Ett… (more)

Melin, Björn

2012-01-01T23:59:59.000Z

260

REVIEW OF METHODS TO REDUCE URBAN STORMWATER LOADS  

E-Print Network [OSTI]

, the implementation of Best Management Practices (BMPs) capable of controlling or removing Hg and PCBs from urban for preliminary prioritization of best management practices (BMPs) (Section 5). Section 3: Describes areas and storm water, measurements of loads in stormwater, and demonstration that either loads

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Kiran Chandra Sapkota Livelihood strategies and vulnerability of urban poor  

E-Print Network [OSTI]

management of drinking water. 97.7 percent HHs have got the electricity and entertainment facilities, electric charge, etc. This study has tried to show five capital assets of urban poor in Khadi Pakha in local social institution but not represented in local government. Above 95 percent HHs involved

Richner, Heinz

262

Adapting Urban Infrastructure to Climate Change: A Drainage Case Study  

E-Print Network [OSTI]

models (GCM) to determine changes in the amount of precipitation for the 20-year, 24-h storm- cipitation magnitude and intensity, associated increases in runoff, storm water discharges, and floodingAdapting Urban Infrastructure to Climate Change: A Drainage Case Study Paul Kirshen, M.ASCE1

Vogel, Richard M.

263

SINGH and BHATNAGAR Urban lakes and wetlands: opportunities and  

E-Print Network [OSTI]

, urban water bodies commonly become cesspools due to lack of sanitation facilities. Delhi is continually it is not unusual for some of them to be referred to as lakes. Ponds and tanks are small in size compared to lakes:50,000 scale, however, the mapping for Delhi was carried out at 1:25,000 scale under the National Wetland

Paris-Sud XI, Université de

264

Proceedings: Sixth International Conference on Fossil Plant Cycle Chemistry  

SciTech Connect (OSTI)

The purity of boiler water, feedwater, and steam is central to ensuring component availability and reliability in fossil-fired plants. These conference proceedings address the state of the art in fossil plant and combined cycle/heat recovery steam generator (HRSG) cycle chemistry as well as international practices for control of corrosion and water preparation and purification.

None

2001-04-01T23:59:59.000Z

265

Carbon Dioxide Reduction Through Urban Forestry  

E-Print Network [OSTI]

. Retrieval Terms: urban forestry, carbon dioxide, sequestration, avoided energy The Authors E. Gregory McCarbon Dioxide Reduction Through Urban Forestry: Guidelines for Professional and Volunteer Tree; Simpson, James R. 1999. Carbon dioxide reduction through urban forestry

Standiford, Richard B.

266

UrbanSolutionsCenter Urban Uses for Dairy Manure Compost  

E-Print Network [OSTI]

UrbanSolutionsCenter Urban Uses for Dairy Manure Compost Background Construction of new homes with time and with heat and drought stress. Dairy manure compost (DMC) is readily available for amending regulatory agencies are developing mechanisms for using composted dairy manure to remedy disturbed soils

267

Bicycle Urbanism Symposium Page 1 of 15 BICYCLE URBANISM SYMPOSIUM  

E-Print Network [OSTI]

Bicycle Urbanism Symposium Page 1 of 15 BICYCLE URBANISM SYMPOSIUM SESSION DETAILS (Last updated Bicycle and Transit Connections in Seattle (panel) Chris Breiland, Fehr and Peers (moderator) Eileen it, how to get people to ride and become a great bicycling city? (workshop) Sara Zora, City

Hochberg, Michael

268

Bicycle Urbanism Symposium Page 1 of 4 BICYCLE URBANISM SYMPOSIUM  

E-Print Network [OSTI]

Bicycle Urbanism Symposium Page 1 of 4 BICYCLE URBANISM SYMPOSIUM POSTERS (Last updated June 19. Alternative and adaptive transportation: how do availability of bicycle, pedestrian and transit facilities. Benefit-Cost Analysis of Repealing Bicycle Helmet Regulations--Implications for the City of Seattle Zun

Hochberg, Michael

269

Variable Irrigation District Action in Water Trading Narishwar Ghimire and Ronald C. Griffin1  

E-Print Network [OSTI]

Variable Irrigation District Action in Water Trading Narishwar Ghimire and Ronald C. Griffin1 urbanization/population patterns has any relation to water transfer responses. To the best of our knowledge;2 (agricultural to urban water transfer) for water owned by IDs. This portion of the analysis finds that initial

Griffin, Ronald

270

Urban Atmospheres captures a unique, synergistic moment  

E-Print Network [OSTI]

Urban Atmospheres captures a unique, synergistic moment ­ expanding urban populations, rapid EDITORS Eric Paulos Intel Research eric@paulos.net Tom Jenkins Royal College of Art thomas

Paulos, Eric

271

Urban Enterprise Zone Program (New Jersey)  

Broader source: Energy.gov [DOE]

New Jersey's Urban Enterprise (UEZ) Program operates under the Department of Community Affairs. The UEZ Program exists to foster an economic climate that revitalizes designated urban communities...

272

Phoenix-UrbanNon-Sacramentorural.  

E-Print Network [OSTI]

the ecosystem has yet to be fully constructed. Goals 1. To understand the drivers of carbon dynamics in urban. Vegetation (Trees and Shrubs) Storage and NPP Tree and Shrub Total NPP: 172 Gg C / Year Tree and Shrub Total on a per area basis, but there is more storage in trees and less in shrubs · NPP in urban mesic plots

Hall, Sharon J.

273

LifeCycle Water Consumption of  

E-Print Network [OSTI]

­ LCAbased policies ­ CA LCFS 3. But a good GHG LCA does not a responsible product make "Sustainability Heat loss into soil "Vapor pressure deficit" Solar radiation Wind speed Constant related to humidity

Keller, Arturo A.

274

Sandia National Laboratories: the water cycle  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1developmentturbineredox-activeNational SolartSSL Georgethe cryosphere New Project

275

Power Plant Cycling Costs  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(say, a trip) and such factors are not fully captured in this dataset. 9. Older combined cycle units were a step change in lower operating costs due to cycling...

276

Edgeworth cycles revisited  

E-Print Network [OSTI]

Some gasoline markets exhibit remarkable price cycles, where price spikes are followed by a series of small price declines: a pattern consistent with a model of Edgeworth cycles described by Maskin and Tirole. We extend ...

Doyle, Joseph J.

277

mathematics single cycle  

E-Print Network [OSTI]

47 mathematics education single cycle master's study programme #12;48 single cycle master's study program in Mathematics Education #12;49 single cycle master's study program in Mathematics Education MATHEMATICS EDUCATION The program is in tune with the principles of the Bologna Declaration. · Academic title

Â?umer, Slobodan

278

Water Resources Milind Sohoni  

E-Print Network [OSTI]

-photosynthesis, energy transfer in animals, and so on. Life as we know it is water-centric (and organic carbon 20, 2012 6 / 17 #12;Water availability Total renewable (defined using the water cycle) per-capita, per year. Country cu. m. Congo 275,000 Canada 94,000 Brazil 48,000 Mongolia, Indonesia 13,000 Japan

Sohoni, Milind

279

Cycle to Cycle Manufacturing Process Control  

E-Print Network [OSTI]

Most manufacturing processes produce parts that can only be correctly measured after the process cycle has been completed. Even if in-process measurement and control is possible, it is often too expensive or complex to ...

Hardt, David E.

280

Evaluation of the aquatic habitat and fish assemblage in an urban reach of the historic Rideau Canal, Ottawa,  

E-Print Network [OSTI]

Evaluation of the aquatic habitat and fish assemblage in an urban reach of the historic Rideau communities, particularly in the urban reach in Ottawa between Hartwell's Lock and the outflow of Dows Lake natural and engineered habitat/substrate types across the period when the canal is at navigational water

Cooke, Steven J.

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Enhancement of Afternoon Thunderstorm Activity by Urbanization in a Valley: Taipei TSING-CHANG CHEN AND SHIH-YU WANG  

E-Print Network [OSTI]

Enhancement of Afternoon Thunderstorm Activity by Urbanization in a Valley: Taipei TSING-CHANG CHEN for building and surface construction increased by a factor of 3. This urbanization may contribute generated by thunderstorms. These findings may explain the reduction in the water supply deficit

Chen, Tsing-Chang "Mike"

282

Modeling the water consumption of Singapore using system dynamics  

E-Print Network [OSTI]

Water resources are essential to life, and in urban areas, the high demand density and finite local resources often engender conditions of relative water scarcity. To overcome this scarcity, governments intensify infrastructure ...

Welling, Karen Noiva

2011-01-01T23:59:59.000Z

283

Engaging Irrigation Organizations in Water Reallocation Ronald C. Griffin*  

E-Print Network [OSTI]

conservation measures, but the status of agriculture as an energy user, food supplier, and bioenergy supplier in water markets, efficiency in urban use is achievable by scarcity-inclusive water rates and new

Griffin, Ronald

284

Oklahoma Water Resources Research Institute Annual Technical Report  

E-Print Network [OSTI]

drinking water treatment plants. Occurrence of Pharmaceuticals, Hormones, and other Organic Wastewater Resources Board. Decision Support System for Long Term Planning of Rural and Urban Water Supply Systems Cost

285

Artificial nature : water infrastructure and its experience as natural space  

E-Print Network [OSTI]

This work is about water infrastructure and its experience as urban and natural space. It deals with the concepts of nature/geography, technology, and the integral experiential space by analyzing water dams and reservoirs ...

Demirta?, Fatma Asl?han, 1970-

2000-01-01T23:59:59.000Z

286

California Urban and Biodiversity Analysis (CURBA)  

E-Print Network [OSTI]

California Urban and Biodiversity Analysis (CURBA) Model #12;Presentation Overview · Model Overview and Fragmentation Analysis Modules · Indication of Effects of Policy on Biodiversity Model Overview #12;· Urban on Biodiversity Model Overview #12;Urban Growth Model: Review · Estimate county based urbanization equations: Prob

Clarke, Keith

287

Constant power cycling for accelerated ageing of supercapacitors Kreczanik Paul, Martin Christian, Venet Pascal, Clerc Guy, Rojat Gerard, Zitouni Younes  

E-Print Network [OSTI]

Constant power cycling for accelerated ageing of supercapacitors Kreczanik Paul, Martin Christian the competitive pole (Lyon Urban Truck and Bus 2015). Keywords «Supercapacitor», «Power cycling», «Lifetime», «Accelerated ageing», «Ageing law» Abstract This paper deals with the lifetime of supercapacitors used

Paris-Sud XI, Université de

288

Bicycle Urbanism Symposium -Program at a glance -Updated June 12, 2013 Advocacy, Planning and Implementation  

E-Print Network [OSTI]

Bicycle Urbanism Symposium - Program at a glance - Updated June 12, 2013 General Theme Advocacy, Planning and Implementation in the Puget Sound The Global Experience + Bicycle Cities of the Future Promoting Bicycling Rider Education / Crunching Numbers: Analyzing and Applying Cycling Data | Panels

Hochberg, Michael

289

On the infiltration of rain water through the soil with runo# of the excess water  

E-Print Network [OSTI]

of drainage networks or other storm water control facilities, especially in urban areas. A complete 3­D '' Viale Morgagni 67/A, 50134 Firenze, Italy Abstract This paper deals with the modelling of the rain waterOn the infiltration of rain water through the soil with runo# of the excess water Iacopo Borsi

Fasano, Antonio

290

Optimization of Cooling Water  

E-Print Network [OSTI]

A cooling water system can be optimized by operation at the highest possible cycles of concentration without risking sealing and fouling on heat exchanger surfaces. The way to optimize will be shown, with a number of examples of new systems....

Matson, J.

291

Water and terrorism Peter H. Gleick  

E-Print Network [OSTI]

and wastewater treatment plants dot our urban and rural landscape. What is less clear, however, is how reliable safe water supplies and to remove and treat wastewater. This infrastructure is vital for human

292

Think water : reconditioning the Malden River  

E-Print Network [OSTI]

The purpose of this thesis is to link water, history and culture through architectural and urban design by researching the potential for the rejuvenation of a neglected industrial site at the edge of a river. The Malden ...

Oda, Kazuyo, 1969-

2003-01-01T23:59:59.000Z

293

Home Consumer Perceptions about Landscape Water Conservation and Relationships with Historical Usage  

E-Print Network [OSTI]

Water is considered to be one of the most limited and precious resources on Earth. Due to this scarcity, water conservation has become essential in order to preserve water resources. Landscape plant material brings quality to urban and suburban...

Milberger, Whitney F.

2010-07-14T23:59:59.000Z

294

Public Versus Private: Does It Matter for Water Conservation? Insights from California  

E-Print Network [OSTI]

driver of water management was the environmental regulator’ss Urban Water Sector. Environmental Management 41(6):863–877Environmental Economics and Management 40(1):37–55 Savedoff WD, Spiller PT (1999) Spilled water:

Kallis, Giorgos; Ray, Isha; Fulton, Julian; McMahon, James E.

2010-01-01T23:59:59.000Z

295

The Politics of Pipes: The Persistence of Small Water Networks in Post-Privatization Manila  

E-Print Network [OSTI]

Competition in Water and Sanitation: The Role of Small-ScaleSmall-scale entrepreneurs in the urban water and sanitationsmall-scale independent providers in the delivery of water and sanitation

Cheng, Deborah

2013-01-01T23:59:59.000Z

296

Heat Pump Cycle with Solution Circuit and Internal Heat Exchange  

E-Print Network [OSTI]

-stage cycle, the heat transfer area required on the refrigerant side will increase by 10~ compared to the ammonia cycl e. CONCLUSIONS The hea t p1llllp cycl e employ ing one sol ut ion circuit and absorber/de sorber heat exchange has a more sophisticated... when a two-stage version fed into the same compressor. While ammonia of this cycl e is used. In this paper. another evaporate s out of an ammonia-water sol ution on C version of such cycles will be discussed which the composition. X. of this solution...

Radermacher, R.

297

Urban Reclamation in São Paulo  

E-Print Network [OSTI]

The urbanized terrain of São Paulo is characterized by wasteful landscapes on peripheral areas of the metropolitan agglomeration, and decaying landscapes of waste in the core of the city. If on the one hand, the increasingly ...

Eskinazi, Victor

2009-01-01T23:59:59.000Z

298

Great Cities Institute Comparative Urbanisms  

E-Print Network [OSTI]

Great Cities Institute Comparative Urbanisms Seminar Series Governance and Social Innovation those "socially innovative strategies" undertaken by citizens in different European cities, identity, governance and social innovation. Her upcoming publications include "Multilevel Governance

Illinois at Chicago, University of

299

Controlling Bats in Urban Areas  

E-Print Network [OSTI]

to avoid obstacles and capture insects. Bats also emit audible sounds that may be used for communi- cation. L-1913 4-08 Controlling BATS Damage In urban areas, bats may become a nuisance becauseoftheirsqueaking,scratchingandcrawl- inginattics...

Texas Wildlife Services

2008-04-15T23:59:59.000Z

300

URBAN EXTENTS Bosnia-Herzego  

E-Print Network [OSTI]

URBAN EXTENTS Bosnia-Herzego Switzerland Czech Republic Germany Croatia Hungary Poland Slovakia. Adriatic Sea Bosnia- Herzegovina This document is licensed under a Creative Commons 3.0 Attribution License

Columbia University

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Urbanization, Agglomeration, and Economic Development  

E-Print Network [OSTI]

94 (3): 656–90. Quigley, John M. 1998. “Urban Diversity andItaly, July 3. John M. Quigley GCU_04pp115-132.indd 129wasn’t fully legible

Quigley, John M.

2008-01-01T23:59:59.000Z

302

Urban and peri-urban agriculture and its zoonotic risks in Kampala, Uganda   

E-Print Network [OSTI]

In developing countries, cities are rapidly expanding, and urban and peri-urban agriculture (UPA) has an important role in feeding a growing urban population. However, UPA carries risks of zoonotic disease transmission. ...

Makita, Kohei

2009-11-25T23:59:59.000Z

303

A decision-support system for sustainable urban metabolism in Europe  

SciTech Connect (OSTI)

Urban metabolism components define the energy and material exchanges within a city and, therefore, can provide valuable information on the environmental quality of urban areas. Assessing the potential impact of urban planning alternatives on urban metabolism components (such as energy, water, carbon and pollutants fluxes) can provide a quantitative estimation of their sustainability performance. Urban metabolism impact assessment can, therefore, contribute to the identification of sustainable urban structures with regards, for example, to building types, materials and layout, as well as to location and capacity of transportation and infrastructural developments. In this way, it enables the formulation of planning and policy recommendations to promote efficient use of resources and enhance environmental quality in urban areas. The European FP7 project BRIDGE (sustainaBle uRban plannIng Decision support accountinG for urban mEtabolism) has developed a decision-support system (DSS) that systematically integrates urban metabolism components into impact assessment processes with the aim of accurately quantifying the potential effects of proposed planning interventions. The DSS enables integration of multiple spatial and non-spatial datasets (e.g. physical flows of energy and material with variables of social and economic change) in a systematic manner to obtain spatially defined assessment results and to thus inform planners and decision-makers. This multi-criteria approach also enables incorporation of stakeholders' perceptions in order to prioritise decisive assessment criteria. This paper describes the methodological framework used to develop the DSS and critically examines the results of its practical application in five European cities. - Highlights: Black-Right-Pointing-Pointer Urban metabolism in sustainability assessment of planning alternatives. Black-Right-Pointing-Pointer European FP7 project applied to 5 real life case studies across Europe. Black-Right-Pointing-Pointer Decision support system enables incorporating scientific knowledge into planning. Black-Right-Pointing-Pointer Scale, data availability and stakeholder representativeness limit its application.

Gonzalez, Ainhoa, E-mail: ainhoag@yahoo.com [Trinity Centre for Biodiversity Research, School of Natural Sciences, Trinity College Dublin, College Green, Dublin 2 (Ireland); Donnelly, Alison, E-mail: donnelac@tcd.ie [Centre for the Environment, School of Natural Sciences, Trinity College Dublin (Ireland); Jones, Mike, E-mail: mike.jones@tcd.ie [Discipline of Botany, School of Natural Sciences, Trinity College Dublin (Ireland); Chrysoulakis, Nektarios, E-mail: zedd2@iacm.forth.gr [Foundation for Research and Technology-Hellas, Institute of Applied and Computational Mathematics (Greece); Lopes, Myriam, E-mail: myr@ua.pt [Departamento de Ambiente e Ordenamento and CESAM, University of Aveiro (Portugal)

2013-01-15T23:59:59.000Z

304

Urban Microclimate, a Study of Energy Balance and Fluid Dynamics /  

E-Print Network [OSTI]

The International Urban Energy Balance Models ComparisonT. Williamson, Urban surface energy balance models: modelof the international urban energy balance model comparison,

Yaghoobian, Neda

2013-01-01T23:59:59.000Z

305

Applicability of CS616 Soil Water Sensors for South  

E-Print Network [OSTI]

site water balance Image from: (Migliaccio 2007) #12;Background ­ Soil Water Sensors Time DomainApplicability of CS616 Soil Water Sensors for South Florida Urban Soils Kevin Koryto Water: Determine if CS616 soil water sensors are functioning adequately at field site. Hypothesis: Presence of air

Migliaccio, Kati White

306

D.C. Water Resources Research Institute Annual Technical Report  

E-Print Network [OSTI]

projects that address the three components of integrated urban water system: storm water runoff and sewer developing and maintaining new environmental quality testing and modeling tools to advance water researchD.C. Water Resources Research Institute Annual Technical Report FY 2013 D.C. Water Resources

307

DESCRIPTION OF CYCLES Both a simple cycle and a regenerative cycle were examined; these are described in Fig 1.  

E-Print Network [OSTI]

would be worthwhile only if potential for high thermodynamic efficiency could be shown. METHOD; these are described in Fig 1. Both are high-pressure cycles; that is, compression precedes heat rejection conditions, some of the water vapor will condense in the indoor coil. It was assumed that the condensate

Oak Ridge National Laboratory

308

A Hydrometeorological Study Related to the Distribution of Precipitation and Runoff over Small Drainage Basins -- Urban Versus Rural Areas  

E-Print Network [OSTI]

TR-28 1970 A Hydrometeorological Study Related to the Distribution of Precipitation and Runoff over Small Drainage Basins?Urban Versus Rural Areas R.G. Feddes R.A. Clark R.C. Runnels Texas Water...

Feddes, R. G.; Clark, R.A.; Runnels, R. C.

309

Storm Water Management through Infiltration Trenches1 Bhagu R. Chahar1  

E-Print Network [OSTI]

. An infiltration trench alone or in combination with other storm10 water management practice is a key element and the drain time of trench, which is a key15 parameter in operation of storm water management practice systems (SUDS), water sensitive38 urban design (WSUD), best management practices (BMP) or low impact urban

Paris-Sud XI, Université de

310

Stirling-cycle refrigerator  

SciTech Connect (OSTI)

A Stirling-cycle refrigerator comprises a plurality of Stirling-cycle refrigerator units each having a displacer defining an expansion chamber, a piston defining a compression chamber, and a circuit including a heater and a cooler and interconnecting the expansion chamber and the compression chamber, and a heat exchanger shared by the circuits and disposed between the coolers and the heaters for effecting heat exchange between working gases in the circuits. The heat exchanger may comprise a countercurrent heat exchanger, and the Stirling-cycle refrigerator units are operated in cycles which are 180/sup 0/ out of phase with each other.

Nakamura, K.

1985-06-11T23:59:59.000Z

311

Geothermal: Sponsored by OSTI -- Geothermal Water Use: Life Cycle Water  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: Crystal structureComposite--FOR

312

Innovative Water Reuse  

E-Print Network [OSTI]

management 1.Rain gardens 2.Porous pavement 3.Green roofs Hydrologic Cycle ISSUES ? Water Conservation ? Is there enough? ? Can conservation make a difference? ? Water Quality ? Contamination/pollution due to runoff Eagle...-drought conditions ? A breakdown of energy use by department shows that the Austin Water Utility uses 60% of the total amount of energy used by the City of Austin. What Can We Do? ? Water Conservation ? Indoors ? Bathrooms ? Kitchen ? Showers ? Laundry...

Jaber, F. H.

2011-01-01T23:59:59.000Z

313

BERNAL et al Local development in peri-urban and rural areas  

E-Print Network [OSTI]

BERNAL et al Local development in peri-urban and rural areas based on co-management for small water, and propose predefined variables to analyze some Colombian small communities located in rural areas in order management; Colombia INTRODUCTION The sector of water and sewage services in Colombia have experimented

Paris-Sud XI, Université de

314

Research and Extension Education Capabilities AgriLife Urban Solutions Center and associated County Extension Programs  

E-Print Network [OSTI]

· Irrigation system design and management · Rainwater harvesting, rain gardens, porous pavements, green roofsWise, Texas SmartScape® landscapes · Use and management of alternate (reclaimed, recycled, poor quality Extension Programs Water Management for Urban Landscapes · Lawn and landscape water conservation

315

Introduction Global demand for drinking water  

E-Print Network [OSTI]

of water quality perceptions, consumption behavior, and demographics, adapted from Decision Center.bridgeandtunnelclub.com/bigmap/outoftown/arizona/phoenix/publicmarket/index.htm The urban social-ecological system contains both drivers and responses to these environmental changes and Bottled Water Consumption Discussion We found that non-whites report lower water quality, which supports

Hall, Sharon J.

316

Low chemical concentrating steam generating cycle  

DOE Patents [OSTI]

A steam cycle for a nuclear power plant having two optional modes of operation. A once-through mode of operation uses direct feed of coolant water to an evaporator avoiding excessive chemical concentration buildup. A recirculation mode of operation uses a recirculation loop to direct a portion of flow from the evaporator back through the evaporator to effectively increase evaporator flow.

Mangus, James D. (Greensburg, PA)

1983-01-01T23:59:59.000Z

317

Building a Water-Energy Nexus Modelling Tool for New York City.  

E-Print Network [OSTI]

?? Increasing demands for energy and water from a growing urban population challenges resource availability and infrastructure capacity in cities worldwide. Planning for infrastructure systems… (more)

Segerström, Rebecka

2011-01-01T23:59:59.000Z

318

atmospheric precipitable water: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Websites Summary: a crucial role in Earth's energy and water cycles through absorbing solar and infrared radiation, releasing latent heat, transporting water, and forming...

319

Water Use in the Development and Operation of Geothermal Power...  

Energy Savers [EERE]

Operation of Geothermal Power Plants Water Use in the Development and Operation of Geothermal Power Plants This report summarizes what is currently known about the life cycle water...

320

Power Plant Cycling Costs  

SciTech Connect (OSTI)

This report provides a detailed review of the most up to date data available on power plant cycling costs. The primary objective of this report is to increase awareness of power plant cycling cost, the use of these costs in renewable integration studies and to stimulate debate between policymakers, system dispatchers, plant personnel and power utilities.

Kumar, N.; Besuner, P.; Lefton, S.; Agan, D.; Hilleman, D.

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Life Cycle Cost Estimate  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

Life-cycle costs (LCCs) are all the anticipated costs associated with a project or program alternative throughout its life. This includes costs from pre-operations through operations or to the end of the alternative.This chapter discusses life cycle costs and the role they play in planning.

1997-03-28T23:59:59.000Z

322

Champions of Texas Water  

E-Print Network [OSTI]

reuse, she is a firm believer in the market system. ?I think the market is the solution. I think the state forcing rural people to give under- priced water to urban areas is not right.? Solving these water issues needs to be sooner rather than later..., a South Texas lawyer for 40 years, has worked with Combs and White on several water issues. ?They both have real high quality of moral courage; they stand for and support what they believe in as opposed to what people might want them to stand...

Wythe, Kathy

2006-01-01T23:59:59.000Z

323

The nitrogen cycle and ecohydrology of seasonally dry grasslands  

E-Print Network [OSTI]

This thesis addresses the coupling of hydrologic and biogeochemical processes and, specifically, the organization of ecosystem traits with the water, carbon, and nitrogen cycles. Observations from a factorial irrigation- ...

Parolari, Anthony Joseph

2013-01-01T23:59:59.000Z

324

Iron Cycling and Redox Evolution in the Precambrian  

E-Print Network [OSTI]

Green, W.J. , 2002. Rare earth elements in the water columnVangaans, P. , 1988. Rare-Earth Element Distributions inRedox cycling of rare earth elements in the suboxic zone of

Planavsky, Noah John

2012-01-01T23:59:59.000Z

325

assisting apprenticeship cycles: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

all that apply New Hampshire, University of 16 Performance study on solar assisted heat pump water heater using CO2 in a transcritical cycle CiteSeer Summary: Abstract: This...

326

assisted reproduction cycles: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

is equipotent Paris-Sud XI, Universit de 25 Performance study on solar assisted heat pump water heater using CO2 in a transcritical cycle CiteSeer Summary: Abstract: This...

327

A window on urban sustainability  

SciTech Connect (OSTI)

Sustainable urban development requires the integration of environmental interests in urban planning. Although various methods of environmental assessment have been developed, plan outcomes are often disappointing due to the complex nature of decision-making in urban planning, which takes place in multiple arenas within multiple policy networks involving diverse stakeholders. We argue that the concept of ‘decision windows’ can structure this seemingly chaotic chain of interrelated decisions. First, explicitly considering the dynamics of the decision-making process, we further conceptualized decision windows as moments in an intricate web of substantively connected deliberative processes where issues are reframed within a decision-making arena, and interests may be linked within and across arenas. Adopting this perspective in two case studies, we then explored how decision windows arise, which factors determine their effectiveness and how their occurrence can be influenced so as to arrive at more sustainable solutions. We conclude that the integration of environmental interests in urban planning is highly dependent on the ability of the professionals involved to recognize and manipulate decision windows. Finally, we explore how decision windows may be opened. -- Highlights: • Decision-making about sustainable urban development occurs in networks. • The concept of ‘decision windows’ was further elaborated. • Decision windows help understand how environmental interests enter decision-making. • Decision windows can, to some extent, be influenced.

Stigt, Rien van, E-mail: rien.vanstigt@hu.nl [Research Center for Technology and Innovation, Utrecht University of Applied Sciences, P.O. Box 182, 3500 AD Utrecht (Netherlands); Driessen, Peter P.J., E-mail: p.driessen@uu.nl [Copernicus Institute of Sustainable Development, Faculty of Geosciences, Utrecht University, P.O. Box 80.115, 3508 TC Utrecht (Netherlands); Spit, Tejo J.M., E-mail: T.J.M.Spit@uu.nl [Department of Human Geography and Spatial Planning, Faculty of Geosciences, Utrecht University, P.O. Box 80.115, 3508 TC Utrecht (Netherlands)

2013-09-15T23:59:59.000Z

328

FUEL CYCLE POTENTIAL WASTE FOR DISPOSITION  

SciTech Connect (OSTI)

The United States (U.S.) currently utilizes a once-through fuel cycle where used nuclear fuel (UNF) is stored on-site in either wet pools or in dry storage systems with ultimate disposal in a deep mined geologic repository envisioned. Within the Department of Energy's (DOE) Office of Nuclear Energy (DOE-NE), the Fuel Cycle Research and Development Program (FCR&D) develops options to the current commercial fuel cycle management strategy to enable the safe, secure, economic, and sustainable expansion of nuclear energy while minimizing proliferation risks by conducting research and development of advanced fuel cycles, including modified open and closed cycles. The safe management and disposition of used nuclear fuel and/or nuclear waste is a fundamental aspect of any nuclear fuel cycle. Yet, the routine disposal of used nuclear fuel and radioactive waste remains problematic. Advanced fuel cycles will generate different quantities and forms of waste than the current LWR fleet. This study analyzes the quantities and characteristics of potential waste forms including differing waste matrices, as a function of a variety of potential fuel cycle alternatives including: (1) Commercial UNF generated by uranium fuel light water reactors (LWR). Four once through fuel cycles analyzed in this study differ by varying the assumed expansion/contraction of nuclear power in the U.S; (2) Four alternative LWR used fuel recycling processes analyzed differ in the reprocessing method (aqueous vs. electro-chemical), complexity (Pu only or full transuranic (TRU) recovery) and waste forms generated; (3) Used Mixed Oxide (MOX) fuel derived from the recovered Pu utilizing a single reactor pass; and (4) Potential waste forms generated by the reprocessing of fuels derived from recovered TRU utilizing multiple reactor passes.

Jones, R.; Carter, J.

2010-10-13T23:59:59.000Z

329

FUEL CYCLE POTENTIAL WASTE FOR DISPOSITION  

SciTech Connect (OSTI)

The United States (U.S.) currently utilizes a once-through fuel cycle where used nuclear fuel (UNF) is stored on-site in either wet pools or in dry storage systems with ultimate disposal in a deep mined geologic repository envisioned. Within the Department of Energy's (DOE) Office of Nuclear Energy (DOE-NE), the Fuel Cycle Research and Development Program (FCR&D) develops options to the current commercial fuel cycle management strategy to enable the safe, secure, economic, and sustainable expansion of nuclear energy while minimizing proliferation risks by conducting research and development of advanced fuel cycles, including modified open and closed cycles. The safe management and disposition of used nuclear fuel and/or nuclear waste is a fundamental aspect of any nuclear fuel cycle. Yet, the routine disposal of used nuclear fuel and radioactive waste remains problematic. Advanced fuel cycles will generate different quantities and forms of waste than the current LWR fleet. This study analyzes the quantities and characteristics of potential waste forms including differing waste matrices, as a function of a variety of potential fuel cycle alternatives including: (1) Commercial UNF generated by uranium fuel light water reactors (LWR). Four once through fuel cycles analyzed in this study differ by varying the assumed expansion/contraction of nuclear power in the U.S. (2) Four alternative LWR used fuel recycling processes analyzed differ in the reprocessing method (aqueous vs. electro-chemical), complexity (Pu only or full transuranic (TRU) recovery) and waste forms generated. (3) Used Mixed Oxide (MOX) fuel derived from the recovered Pu utilizing a single reactor pass. (4) Potential waste forms generated by the reprocessing of fuels derived from recovered TRU utilizing multiple reactor passes.

Carter, J.

2011-01-03T23:59:59.000Z

330

Sustainable Urban Development: A Literature Review and Analysis  

E-Print Network [OSTI]

Towards Sustainable Development and Sustainable Urban Forms,Sustainable Urban Development Sustainable Seattle Indicatorseds. , Making Development Sustainable: From Concepts to

Wheeler, Stephen

1996-01-01T23:59:59.000Z

331

Essays on rural-urban migration in hinterland China  

E-Print Network [OSTI]

Marriage Rates in Rural China . . . . . . . . . . .Urban Migration in Hinterland China . . . . . . . . . .and Rural-Urban Migration in Hinterland China . . . . . 1.

Meng, Lei

2009-01-01T23:59:59.000Z

332

Director Position Center for Urban Transportation  

E-Print Network [OSTI]

Director Position Center for Urban Transportation The Center for Urban Transportation Research for state policymakers, transportation agencies, transportation professionals and the public. CUTR conducts of Transportation's Federal Transit Administration and Federal Highway Administration, the Florida Department

Arslan, Hüseyin

333

Containers : project for a new urbanism  

E-Print Network [OSTI]

This project investigates the possibilities of a new urbanism in vast territories of urban industrial and logistics landscapes, which have become a significant feature of the American city. It is a search for a hybrid ...

Ghasemkhani, Yashar

2011-01-01T23:59:59.000Z

334

Urban regeneration : enabled by mobility centric architecture  

E-Print Network [OSTI]

The primary goal of this thesis is to develop a new urban architectural prototype to reinvigorate the British New Town. New models of adaptable, sustainable, architecture and urban design are explored with the ultimate ...

Higgins, Wayne Charles

2010-01-01T23:59:59.000Z

335

High-resolution urban thermal sharpener (HUTS)  

E-Print Network [OSTI]

the urban heat island of Houston, Texas,  Remote Sensing of infrared  remote sensing and GIS to asses the urban heat heat island analysis.  Photogrammetric Engineering & Remote 

Dominguez, Anthony; Kleissl, Jan; Luvall, Jeffrey C; Rickman, Douglas L

2011-01-01T23:59:59.000Z

336

Field crossings : hybridizing the urban park  

E-Print Network [OSTI]

The growth and identity of urban open space is a vital issue facing our cities today. The development and revitalization of old industrial centers in the United States has prompted urban transformations in usage, densification ...

Cyphers, Scott M

2003-01-01T23:59:59.000Z

337

Urban waterfront : problems and potentials of Boston  

E-Print Network [OSTI]

The essence of this thesis is based on the fact that downtown waterfronts are special urban areas in a city. These areas offer unique opportunities for providing cultural and recreational public amenities to urban life. ...

Hossain, Mohammad Iqbal

1984-01-01T23:59:59.000Z

338

Boston Architectural College Urban Sustainability Initiative  

SciTech Connect (OSTI)

The Boston Architectural College's Urban Sustainability initiative is a demonstration project as defined by the National Energy Technology Laboratory. BAC's proposed project with the U.S. Department of Energy - NETL, is a large part of that overall initiative. The BAC's Urban Sustainability Initiative is a multi-part project with several important goals and objectives that will have a significant impact on the surrounding neighborhood including: energy conservation, reduction of storm water runoff, generation of power through alternative energy sources, elimination/reduction of BAC carbon footprint, and to create a vehicle for ongoing public outreach and education. Education and outreach opportunities will serve to add to the already comprehensive Sustainability Design courses offered at BAC relative to energy savings, performance and conservation in building design. At the finish of these essential capital projects there will be technical materials created for the education of the design, sustainability, engineering, community development and historic preservation communities, to inform a new generation of environmentally-minded designers and practitioners, the city of Boston and the general public. The purpose of the initiative, through our green renovations program, is to develop our green alley projects and energy saving renovations to the BAC physical plant, to serve as a working model for energy efficient design in enclosed 19th century and 20th century urban sites and as an educational laboratory for teaching ecological and sustainable technologies to students and the public while creating jobs. The scope of our project as it relates to the BAC and the U.S. Department of Energy- NETL combined efforts includes: Task I of the project is Phase II (Green Alley). Task I encompasses various renovation activities that will demonstrate the effectiveness of permeable paving and ground water recharge systems. It will aid in the reduction of storm water runoff into the Charles River Basin in one of its most significantly polluted sections and, will provide a green renovation mechanism for the redirected storm water of a public alley way. This activity is designed to improve the quality of water recharging the ground water and protecting the vulnerable wood pilings under many of the historic masonry buildings in Boston's Back Bay. Sustainable design research and system monitoring opportunities will also be incorporated, providing ongoing tools for public outreach and education through innovative signage and "virtual tour" technology. The monitoring will include a "building performance dash board" that reflects real time operating conditions and improvements in environmental and economic performance to be prominently displayed on the face of our 320 Newbury Street building (approximately 1.5 million people walk by annually). The project site and demonstration area is located at the rear of 951 Boylston Street, Boston, MA 02115 and the parking area adjacent to Public Alley #444 in Boston's historic Back Bay. Task II of the project is Geothermal Solution. This task involves the installation of approximately seven Geothermal wells which will tap into the earth's constant underground temperatures to provide air-conditioning and heating for BAC facilities. The environmentally friendly geothermal system uses no fossil fuel, produces no emissions and runs silently, providing a sustainable model for commercial and residential buildings throughout Boston. Ultimately the combination of this project and other projects will assist in making the BAC "carbon-neutral", and could generate enough additional energy to provide free power to the Engine 33 and Ladder 15 Firehouse located at 941 Boylston Street. The project is located at the rear of 951 Boylston Street, Boston, MA 02115 and the parking area adjacent to Public Alley #444 in Boston's historic Back Bay. Task III of the project is the Sustainability Design Curriculum at the BAC. The BAC is the nation’s largest independent, multi-disciplinary college of spatial design, and a leader in

Byers, Arthur C.

2013-07-31T23:59:59.000Z

339

E-Print Network 3.0 - amr refrigeration cycle Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

COPs, pressure ratios, outlet temperatures of the refrigerants... , Ltd. KEY WORDS: refrigeration; refrigerants; water; comparison; compressor; cycle; heat pump; air... be...

340

Annual Simulation Results for an Air-Cooled Binary Power Cycle Employing Flash Cooling Enhancement  

SciTech Connect (OSTI)

Objective is to perform detailed simulation of air cooled cycle with flash supplied cooling water using two types of evaporative enhancement, spray nozzels and evaporative media.

Buys, A.; Gladden, C.; Kutscher, C.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Response Surface Energy Modeling of an Electric Vehicle over a Reduced Composite Drive Cycle  

SciTech Connect (OSTI)

Response surface methodology (RSM) techniques were applied to develop a predictive model of electric vehicle (EV) energy consumption over the Environmental Protection Agency's (EPA) standardized drive cycles. The model is based on measurements from a synthetic composite drive cycle. The synthetic drive cycle is a minimized statistical composite of the standardized urban (UDDS), highway (HWFET), and US06 cycles. The composite synthetic drive cycle is 20 minutes in length thereby reducing testing time of the three standard EPA cycles by over 55%. Vehicle speed and acceleration were used as model inputs for a third order least squared regression model predicting vehicle battery power output as a function of the drive cycle. The approach reduced three cycles and 46 minutes of drive time to a single test of 20 minutes. Application of response surface modeling to the synthetic drive cycle is shown to predict energy consumption of the three EPA cycles within 2.6% of the actual measured values. Additionally, the response model may be used to predict energy consumption of any cycle within the speed/acceleration envelope of the synthetic cycle. This technique results in reducing test time, which additionally provides a model that may be used to expand the analysis and understanding of the vehicle under consideration.

Jehlik, Forrest [Argonne National Laboratory (ANL)] [Argonne National Laboratory (ANL); LaClair, Tim J [ORNL] [ORNL

2014-01-01T23:59:59.000Z

342

Cycle isolation monitoring  

SciTech Connect (OSTI)

There are many factors to monitor in power plants, but one that is frequently overlooked is cycle isolation. Often this is an area where plant personnel can find 'low hanging fruit' with great return on investment, especially high energy valve leakage. This type of leakage leads to increased heat rate, potential valve damage and lost generation. The fundamental question to ask is 'What is 100 Btu/kW-hr of heat rate worth to your plant? On a 600 MW coal-fired power plant, a 1% leakage can lead to an 81 Btu/kW-hr impact on the main steam cycle and a 64 Btu/kW-hr impact on the hot reheat cycle. The article gives advice on methods to assist in detecting leaking valves and to monitor cycle isolation. A software product, TP. Plus-CIM was designed to estimate flow rates of potentially leaking valves.

Svensen, L.M. III; Zeigler, J.R.; Todd, F.D.; Alder, G.C. [Santee Copper, Moncks Corner, SC (United States)

2009-07-15T23:59:59.000Z

343

D.C. Water Resources Research Center Annual Technical Report  

E-Print Network [OSTI]

of Storm and Wastewater Management. The Water Quality Testing Lab has allowed the Institute and the Water as a predictive tool for water resource management. Integrating monitoring and mathematical modeling, both labs as well weed control in urban gardening. The Cooperative Extension Service/Water Quality Education Program

344

Malone cycle refrigerator development  

SciTech Connect (OSTI)

This paper describes the progress made in demonstrating a Malone Cycle Refrigerator/Freezer. The Malone cycle is similar to the Stirling cycle but uses a supercritical fluid in place of real gas. In the approach, solid-metal diaphragms are used to seal and sweep the working volumes against the high working fluid pressures required in Malone cycle machines. This feature eliminates the friction and leakage that accounted for nearly half the losses in the best piston-defined Malone cycle machines built to date. The authors successfully built a Malone cycle refrigerator that: (1) used CO{sub 2} as the working fluid, (2) operated at pressures up to 19.3 Mpa (2,800 psi), (3) achieved a cold end metal temperatures of {minus}29 C ({minus}20 F), and (4) produced over 400 Watts of cooling at near ambient temperatures. The critical diaphragm components operated flawlessly throughout characterization and performance testing, supporting the conclusion of high reliability based on analysis of fatigue date and actual strain measurements.

Shimko, M.A.; Crowley, C.J.

1999-07-01T23:59:59.000Z

345

pi2011 Session 2O -REUSE AND GREYWATER [ROOM GEMINI], Wednesday, 23rd October (14:30h -16:10h) 7th IWA Specialist conference on efficient use and management of water: "Water Efficiency Strategies for  

E-Print Network [OSTI]

rue neuve Tolbiac 75013 Paris, France Keywords : water reuse, dual supply systems, urban non potable such as green spaces watering or roadways cleaning. The use of non potable water not only makes it possible. The agricultural re-use can be seen as ultimate step of treatment and a point to point application. An urban re-use

Paris-Sud XI, Université de

346

Soil metagenomics and carbon cycling  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Soil metagenomics and carbon cycling Soil metagenomics and carbon cycling Establishing a foundational understanding of the microbial and ecosystem factors that control carbon...

347

Urban Racial Segregation Measures Comparison  

E-Print Network [OSTI]

. Douglas Wunneburger, from the Department of Landscape Architecture and Urban Planning for his guidance and support through the course of this research. His GIS classes have opened my eyes to a new powerful tool to analyze from a different view. I wish...

Djonie, Jamil

2011-02-22T23:59:59.000Z

348

The Center for Urban Entrepreneurship &  

E-Print Network [OSTI]

-commerce business models; effective communication for women in business; and technology transfer and countertradeThe Center for Urban Entrepreneurship & Economic Development (CUEED) Business Science Technology business.rutgers.edu Rutgers, The State University of New Jersey ­ founded 1766 Business Science Technology

349

North Central Texas Water Quality Final Report  

E-Print Network [OSTI]

source pollution sources in the watershed. The District has already initiated efforts to address the water quality issues, developing a water quality monitoring program to collect data for these reservoirs and their associated watersheds. The District... has collected water quality data for nearly 40 parameters since 1989. Effluent discharges from the wastewater treatment plans and nonpoint source pollution from urban and agricultural runoff are reported as the major causes for water quality...

Berthold, T. Allen

350

Sampling Throughout The Hydrologic Cycle To Characterize Sources Of Volatile Organic  

E-Print Network [OSTI]

ether (MTBE) are sufficiently high to cause detection in ground water, whereas atmospheric that point sources of MTBE, such as spills or infiltration of urban runoff, are also prevalent are widespread. MTBE is detected less frequently in observation wells that tap 10- to 15-year-old ground water

Torgersen, Christian

351

E-Print Network 3.0 - assessing urban contamination Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

12;Urban Soil - Compaction 12;Urban... Engineering Urban Soils to Improve Landscape Tree Performance P. Eric Wiseman, Ph.D. Assistant... Professor, Urban Forestry ... Source:...

352

Issues in the selection of the LMFBR steam cycle  

SciTech Connect (OSTI)

Unlike the light-water reactor, the liquid-metal fast breeder reactor (LMFBR) allows the designer considerable latitude in the selection of the steam cycle. This latitude in selection has been exercised by both foreign and domestic designers, and thus, despite the fact that over 25 LMFBR's have been built or are under construction, a consensus steam cycle has not yet evolved. This paper discusses the LMFBR steam cycles of interest to the LMFBR designer, reviews which of these cycles have been employed to date, discusses steam-cycle selection factors, discusses why a consensus has not evolved, and finally, concludes that the LMFBR steam-cycle selection is primarily one of technical philosophy with several options available.

Buschman, H.W.; McConnell, R.J.

1983-01-01T23:59:59.000Z

353

Issues in the selection of the LMFBR steam cycle  

SciTech Connect (OSTI)

Unlike the light water reactor, the liquid metal fast breeder reactor (LMFBR) allows the designer considerable latitude in the selection of the steam cycle. This latitude in selection has been exercised by both foreign and domestic designers, and thus, despite the fact that over 25 LMFBR's have been built or are under construction, a consensus steam cycle has not yet evolved. This paper discusses the LMFBR steam cycles of interest to the LMFBR designer, reviews which of these cycles have been employed to date, discusses steam-cycle selection factors, discusses why a consensus has not evolved, and finally, concludes that the LMFBR steam-cycle selection is primarily one of technical philosophy with several options available.

Buschchman, H.W.; McConnell, R.J.

1983-08-01T23:59:59.000Z

354

Helium process cycle  

DOE Patents [OSTI]

A unique process cycle and apparatus design separates the consumer (cryogenic) load return flow from most of the recycle return flow of a refrigerator and/or liquefier process cycle. The refrigerator and/or liquefier process recycle return flow is recompressed by a multi-stage compressor set and the consumer load return flow is recompressed by an independent consumer load compressor set that maintains a desirable constant suction pressure using a consumer load bypass control valve and the consumer load return pressure control valve that controls the consumer load compressor's suction pressure. The discharge pressure of this consumer load compressor is thereby allowed to float at the intermediate pressure in between the first and second stage recycle compressor sets. Utilizing the unique gas management valve regulation, the unique process cycle and apparatus design in which the consumer load return flow is separate from the recycle return flow, the pressure ratios of each recycle compressor stage and all main pressures associated with the recycle return flow are allowed to vary naturally, thus providing a naturally regulated and balanced floating pressure process cycle that maintains optimal efficiency at design and off-design process cycle capacity and conditions automatically.

Ganni, Venkatarao (Yorktown, VA)

2008-08-12T23:59:59.000Z

355

Helium process cycle  

DOE Patents [OSTI]

A unique process cycle and apparatus design separates the consumer (cryogenic) load return flow from most of the recycle return flow of a refrigerator and/or liquefier process cycle. The refrigerator and/or liquefier process recycle return flow is recompressed by a multi-stage compressor set and the consumer load return flow is recompressed by an independent consumer load compressor set that maintains a desirable constant suction pressure using a consumer load bypass control valve and the consumer load return pressure control valve that controls the consumer load compressor's suction pressure. The discharge pressure of this consumer load compressor is thereby allowed to float at the intermediate pressure in between the first and second stage recycle compressor sets. Utilizing the unique gas management valve regulation, the unique process cycle and apparatus design in which the consumer load return flow is separate from the recycle return flow, the pressure ratios of each recycle compressor stage and all main pressures associated with the recycle return flow are allowed to vary naturally, thus providing a naturally regulated and balanced floating pressure process cycle that maintains optimal efficiency at design and off-design process cycle capacity and conditions automatically.

Ganni, Venkatarao (Yorktown, VA)

2007-10-09T23:59:59.000Z

356

Superfluid thermodynamic cycle refrigerator  

DOE Patents [OSTI]

A cryogenic refrigerator cools a heat source by cyclically concentrating and diluting the amount of .sup.3 He in a single phase .sup.3 He-.sup.4 He solution. The .sup.3 He in superfluid .sup.4 He acts in a manner of an ideal gas in a vacuum. Thus, refrigeration is obtained using any conventional thermal cycle, but preferably a Stirling or Carnot cycle. A single phase solution of liquid .sup.3 He at an initial concentration in superfluid .sup.4 He is contained in a first variable volume connected to a second variable volume through a superleak device that enables free passage of .sup.4 He while restricting passage of .sup.3 He. The .sup.3 He is compressed (concentrated) and expanded (diluted) in a phased manner to carry out the selected thermal cycle to remove heat from the heat load for cooling below 1 K.

Swift, Gregory W. (Santa Fe, NM); Kotsubo, Vincent Y. (La Canada, CA)

1992-01-01T23:59:59.000Z

357

Superfluid thermodynamic cycle refrigerator  

DOE Patents [OSTI]

A cryogenic refrigerator cools a heat source by cyclically concentrating and diluting the amount of [sup 3]He in a single phase [sup 3]He-[sup 4]He solution. The [sup 3]He in superfluid [sup 4]He acts in a manner of an ideal gas in a vacuum. Thus, refrigeration is obtained using any conventional thermal cycle, but preferably a Stirling or Carnot cycle. A single phase solution of liquid [sup 3]He at an initial concentration in superfluid [sup 4]He is contained in a first variable volume connected to a second variable volume through a superleak device that enables free passage of [sup 4]He while restricting passage of [sup 3]He. The [sup 3]He is compressed (concentrated) and expanded (diluted) in a phased manner to carry out the selected thermal cycle to remove heat from the heat load for cooling below 1 K. 12 figs.

Swift, G.W.; Kotsubo, V.Y.

1992-12-22T23:59:59.000Z

358

Understanding the petrochemical cycle  

SciTech Connect (OSTI)

The presentation will examine the nature of the supply, demand and profitability cycles that appear to be endemic in the petrochemical industry. The focus will be on the underlying factors that cause cyclicality. Data for ethylene and first line derivatives will be used both to provide quantitative illustrations of the magnitude of the cyclical effects and to give an improved perspective on the forces that drive cylicality. We will also examine to what extent cycle timing may be predictable, and present some scenario based projections.

Sedriks, W. [SRI Consulting, Melno Park, CA (United States)

1996-10-01T23:59:59.000Z

359

The Politics of Pipes: The Persistence of Small Water Networks in Post-Privatization Manila  

E-Print Network [OSTI]

and Sanitation: The Role of Small-Scale Entrepreneurs (NoteSmall-scale entrepreneurs in the urban water and sanitationsmall-scale independent providers in the delivery of water and sanitation

Cheng, Deborah

2013-01-01T23:59:59.000Z

360

INTRODUCTION It is argued here that urban vulnerability can be assessed and operationalized using the model of ecological resilience; however, modifications are needed to capture the complexities  

E-Print Network [OSTI]

distribution, urban agriculture, wastewater treatment, etc); however, in many instances a more robust method and water supply) are very closely linked; if prolonged drought caused by climate change reduces flow rates

Hall, Sharon J.

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

GENERAL CIRCULATION Energy Cycle  

E-Print Network [OSTI]

process. PE is useful for global energy balance. Solar radiant energy does not reach the Earth equally everywhere. On average, the tropics receive and absorb far more solar energy annually than the polar regionsGENERAL CIRCULATION Contents Energy Cycle Mean Characteristics Momentum Budget Overview Energy

Grotjahn, Richard

362

CLASS DESCRIPTIONS CYCLING SERIES  

E-Print Network [OSTI]

will utilize concepts from the 50-minute cycling class while going the distance to optimal health. Whether you're an avid cyclist, triathlete, or desire a longer class for a greater challenge, join us for this 75-minute AN URBANATHLETE Are you registered to compete in an adventure race like the Men's Health Urbanathlon, Warrior Dash

Pittendrigh, Barry

363

Life cycle assessment  

SciTech Connect (OSTI)

Life-Cycle Assessment (LCA) is a technical, data-based and holistic approach to define and subsequently reduce the environmental burdens associated with a product, process, or activity by identifying and quantifying energy and material usage and waste discharges, assessing the impact of those wastes on the environment, and evaluating and implementing opportunities to effect environmental improvements. The assessment includes the entire life-cycle of the product, process or activity encompassing extraction and processing of raw materials, manufacturing, transportation and distribution, use/reuse, recycling and final disposal. LCA is a useful tool for evaluating the environmental consequences of a product, process, or activity, however, current applications of LCA have not been performed in consistent or easily understood ways. This inconsistency has caused increased criticism of LCA. The EPA recognized the need to develop an LCA framework which could be used to provide consistent use across the board. Also, additional research is needed to enhance the understanding about the steps in the performance of an LCA and its appropriate usage. This paper will present the research activities of the EPA leading toward the development of an acceptable method for conducting LCA`s. This research has resulted in the development of two guidance manuals. The first manual is intended to be a practical guide to conducting and interpreting the life-cycle inventory. A nine-step approach to performing a comprehensive inventory is presented along with the general issues to be addressed. The second manual addresses life-cycle design.

Curran, M.A. [Environmental Protection Agency, Cincinnati, OH (United States)

1994-12-31T23:59:59.000Z

364

Combined Cycle Combustion Turbines  

E-Print Network [OSTI]

Combined Cycle Combustion Turbines Steven Simmons February 27 2014 1 #12;CCCT Today's Discussion 1 Meeting Pricing of 4 advanced units using information from Gas Turbine World Other cost estimates from E E3 EIA Gas Turbine World California Energy Commission Date 2010 Oct 2012, Dec 2013 Apr 2013 2013 Apr

365

Siemens AG, Corporate Technology Innovations in Urban Solutions  

E-Print Network [OSTI]

Water/ Sewer Re- cycling Public authority/ Green governance Trans- port/Mobility Waste management · landfill needed to manage demand · congestion · high CO2 emission Electricity: strong focus on renewables of energy consumption · energy scarcity/energy costs · CO2 emissions Efficiency · energy scarcity/ energy

Ge, Zigang

366

Nonpoint pollution of surface waters with phosphorus and nitrogen  

E-Print Network [OSTI]

information, we are confident that: (1) nonpoint pollution of surface waters with P and N could be reduced by reducing surplus nutrient flows in agricultural systems and processes, reducing agricultural and urban runoff by diverse methods, and reducing N...

Carpenter, S. R.; Caraco, N. F.; Correll, D. L.; Howarth, R. W.; Sharpley, A. N.; Smith, Val H.

1998-08-01T23:59:59.000Z

367

NONPOINT POLLUTION OF SURFACE WATERS WITH PHOSPHORUS AND NITROGEN  

E-Print Network [OSTI]

information, we are confident that: (1) nonpoint pollution of surface waters with P and N could be reduced by reducing surplus nutrient flows in agricultural systems and processes, reducing agricultural and urban runoff by diverse methods, and reducing N...

Carpenter, Stephen R.; Caraco, Nina F. M.; Correll, David L.; Howarth, Robert W.; Sharpley, Andrew N.; Smith, Val H.

1998-01-01T23:59:59.000Z

368

On-line hydraulic state prediction for water distribution systems  

E-Print Network [OSTI]

This paper describes and demonstrates a method for on?line hydraulic state prediction in urban water networks. The proposed method uses a Predictor?Corrector (PC) approach in which a statistical data?driven algorithm is ...

Whittle, Andrew

369

Advanced Fuel Cycle Initiative  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Working with INL Community Outreach Visitor Information Calendar of Events ATR National Scientific User Facility Center for Advanced Energy Studies Light Water Reactor...

370

Advanced Fuel Cycle Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Working with INL Community Outreach Visitor Information Calendar of Events ATR National Scientific User Facility Center for Advanced Energy Studies Light Water Reactor...

371

Urban Parks: The Value of Small Urban Parks, Plazas and Other Outdoor Spaces  

E-Print Network [OSTI]

People need parks. Great urban parks are places where communities come together, people interact, and social capital develops. Learn the characteristics of great urban parks and how they are created....

Shafer, Carl Scott; Jacob, John

2006-11-27T23:59:59.000Z

372

SproutslO Urban Microfarm : interactive indoor farming system for urban use  

E-Print Network [OSTI]

SproutslO Urban Microfarm is an interactive farming system that enables people to reliably grow and access healthy produce in urban areas. The introduction of a localized system with the capacity to induce scalar impact ...

Farah, Jennifer Broutin

2013-01-01T23:59:59.000Z

373

Urban settlement issues : observations from 181 surveys of urban dwelling environments in developing countries  

E-Print Network [OSTI]

Observations and summaries were made on 181 surveys of urban dwelling environments in developing countries, carried out by members of the Urban Settlement Design Program (U.S.D.P.), at MIT. The focus of this study is in ...

Wang, Chih-chien, M.S. Massachusetts Institute of Technology

1982-01-01T23:59:59.000Z

374

An urban weather generator coupling a building simulation program with an urban canopy model  

E-Print Network [OSTI]

The increase in air temperature observed in urban environments compared to the undeveloped rural surroundings, known as the Urban Heat Island (UHI) effect, is being intensely studied, due to its adverse environmental and ...

Bueno Unzeta, Bruno

2010-01-01T23:59:59.000Z

375

Boundaries to membranes : the urban project revisited : an urban strategy for Rio de Janeiro, Zona Norte  

E-Print Network [OSTI]

This thesis investigates urban boundaries in the North Zone of Rio de Janeiro. The Zona Norte transitioned in the last hundred years from a rural outskirts area of Rio, into its industrial hinterland, into a fully urbanized ...

Dudek, Phebe (Phebe Helena Melania)

2014-01-01T23:59:59.000Z

376

Proceedings: 7th International Conference on Cycle Chemistry in Fossil Plants  

SciTech Connect (OSTI)

The purity of boiler water, feedwater, and steam is central to ensuring component availability and reliability in fossil-fired plants. These proceedings of EPRI's Seventh International Conference on Cycle Chemistry in Fossil Plants address the state of the art in fossil plant and combined cycle/heat recovery steam generator (HRSG) cycle chemistry as well as international practices for corrosion control and water preparation and purification.

None

2004-02-01T23:59:59.000Z

377

Urban Stormwater and Watershed Management: A Case Study James P. Heaney, Len Wright, and David Sample  

E-Print Network [OSTI]

classified as Decision Support Systems (DSS) (Loucks 1995). Contemporary DSS's contain a mixture9-1 Chapter 9 Urban Stormwater and Watershed Management: A Case Study James P. Heaney, Len Wright. The concept of integrated water and land management was first articulated in the western U.S. by John Wesley

Pitt, Robert E.

378

Health Risk Assessment: scale-dependent effects of urban air pollution on mortality  

E-Print Network [OSTI]

Health Risk Assessment: scale-dependent effects of urban air pollution on mortality M. Valari(1), L (food, water etc.) -Population exposure: [c] x dt -Health data & air pollution health effects Health risk assessment #12;Pollutants concentrations [c] Population exposure [c] x dt Air pollution health

Menut, Laurent

379

HIGHRESOLUTION SEISMIC CHARACTERIZATION IN A COMPLEX URBAN , FontCap, J.2  

E-Print Network [OSTI]

HIGHRESOLUTION SEISMIC CHARACTERIZATION IN A COMPLEX URBAN AREA Martí, D.1 , FontCapó, J.2 is very difficult. The street geometry determined the geometry of the seismic data acquisition "weathered" layer of variable thickness (building fundations, sewage system, water supply conductions, etc

Politècnica de Catalunya, Universitat

380

Modeling Integrated Decisions for a Municipal Water System with Recourse and Uncertainties  

E-Print Network [OSTI]

for a municipal water system to cost-effectively accommodate a distribution of water shortages. Alternative robust in action costs, life spans, water volumes gained or saved, shortage levels, and shortage probabilities make water shortages pressing or impending realities for Amman, Jordan and many other urban water

Pasternack, Gregory B.

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

1Assessment of Urban and Regional Research in the Netherlands, 2000-2006 Assessment of Urban  

E-Print Network [OSTI]

1Assessment of Urban and Regional Research in the Netherlands, 2000-2006 Assessment of Urban and Regional Research in the Netherlands, 2000-2006 January 2008 #12;2 Assessment of Urban and Regional Research in the Netherlands, 2000-2006 Committee Prof. Robson (chair) Prof. Albrechts Prof. Bailey Prof

Utrecht, Universiteit

382

An Inside Look at Bogot's Urban Renewal From Broad Urban Stories to Everyday Tales  

E-Print Network [OSTI]

was considered the sixth-best city in Latin America to do business. Yet the process has not been free1 An Inside Look at Bogotá's Urban Renewal From Broad Urban Stories to Everyday Tales Camilo Andrés process of urban renewal that fostered the insertion of the city in the international scene. In order

Paris-Sud XI, Université de

383

TRAN KHAC et al. Urban lakes: interaction between phytoplankton  

E-Print Network [OSTI]

through physical-chemical and biological field data collection and (2) simultaneously to survey, are common in urban and peri-urban landscape. Urban lakes play a key role in recreation and storing rainwater

Paris-Sud XI, Université de

384

Faculty perceptions of presidential leadership in urban school reform  

E-Print Network [OSTI]

The study examined urban university faculty members’ perceptions of their presidents’ leadership role in urban school reform. The population for this study consisted of faculty members from five urban research universities. All of the universities...

McClendon, Rodney Prescott

2009-06-02T23:59:59.000Z

385

South Carolina Water Resources Research Annual Technical Report  

E-Print Network [OSTI]

a water budget analysis for the Upstate based upon the results of the urban growth model. The SCWRC has recently funded studies to: 1) develop a theoretical framework for water quality trading in the SaludaSouth Carolina Water Resources Research Institute Annual Technical Report FY 2009 South Carolina

386

Past and Future EU Water Policy from a German Perspective  

E-Print Network [OSTI]

/271/EEC concerning urban waste-water treatment -> most expensive EEC-directive ever, but also veryPast and Future EU Water Policy from a German Perspective Dr. Fritz Holzwarth #12;Water Protection Community (EEC) with the focus on economic issues (reduction of trade barriers, free movement of goods

Wehrli, Bernhard

387

NEBRASKA WATER RESOURCES RESEARCH INSTITUTE 212 AGRICULTURAL ENGINEERING BUILDING  

E-Print Network [OSTI]

is Deputy Director for Water Resources Research. WASTE GUIDE ON THERMAL POLLUTION Copies of an "Industrial, urban water use and needs, water system construction, and flood plain management. The focal point VIaste Guide on Thermal Pollution" may be obtained by writing to: National Thermal Pollution Research

Nebraska-Lincoln, University of

388

Roadmap for sustainable water resources in southwestern North America  

E-Print Network [OSTI]

water and remove wastewater. These systems have permitted agricultural production and urban technologies and management systems tobring adequatewaterandremove wastewater. Agricultural production has to move, treat, and use our water; and substantial quantities of water are required to help us satisfy our

Lachniet, Matthew S.

389

Stirling cycle engine  

DOE Patents [OSTI]

In a Stirling cycle engine having a plurality of working gas charges separated by pistons reciprocating in cylinders, the total gas content is minimized and the mean pressure equalization among the serial cylinders is improved by using two piston rings axially spaced at least as much as the piston stroke and by providing a duct in the cylinder wall opening in the space between the two piston rings and leading to a source of minimum or maximum working gas pressure.

Lundholm, Gunnar (Lund, SE)

1983-01-01T23:59:59.000Z

390

Water Resources Water Quality and Water Treatment  

E-Print Network [OSTI]

Water Resources TD 603 Lecture 1: Water Quality and Water Treatment CTARA Indian Institute of Technology, Bombay 2nd November, 2011 #12;OVERVIEW Water Quality WATER TREATMENT PLANTS WATER TREATMENT PLANTS WATER TREATMENT PLANTS WATER TRE OVERVIEW OF THE LECTURE 1. Water Distribution Schemes Hand Pump

Sohoni, Milind

391

An investigation into water trading as an appropriate instrument to promote equitable resource sharing in the Mhlatuze catchment : a case study.  

E-Print Network [OSTI]

??Water resources are a crucial resource in a large proportion of economic activity, both in rural and urban areas and resource sharing has become an… (more)

Longhurst, Brendon.

2009-01-01T23:59:59.000Z

392

Comparative Analysis of Urban Atmospheric Aerosol by Particle...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Analysis of Urban Atmospheric Aerosol by Particle-Induced X-ray Emission (PIXE), Proton Elastic Scattering Analysis Comparative Analysis of Urban Atmospheric Aerosol by...

393

Energy Department Announces the SUN Project, Empowering Urban...  

Energy Savers [EERE]

Energy Department Announces the SUN Project, Empowering Urban Native Youth in STEM Education Energy Department Announces the SUN Project, Empowering Urban Native Youth in STEM...

394

Gauging Improvements in Urban Building Energy Policy in India  

E-Print Network [OSTI]

Urban Building Energy Policy in India Christopher WilliamsUrban Building Energy Policy in India Christopher Williamsefficiency policies and programs in India are in an active

Williams, Christopher

2013-01-01T23:59:59.000Z

395

Urban agriculture is a gateway to healthy foods  

E-Print Network [OSTI]

healthy tomorrow. Urban agriculture has multiple benefitsWestlake. 192 CALIFORNIA AGRICULTURE • VOLUME 67 , NUMBER 4Editorial Urban agriculture is a gateway to healthy foods A

Pérez, John A

2013-01-01T23:59:59.000Z

396

Community Renewable Energy Success Stories: Wind Energy in Urban...  

Office of Environmental Management (EM)

Community Renewable Energy Success Stories: Wind Energy in Urban Environments Webinar (text version) Community Renewable Energy Success Stories: Wind Energy in Urban Environments...

397

High Performance Without Increased Cost: Urbane Homes, Louisville...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

High Performance Without Increased Cost: Urbane Homes, Louisville, KY - Building America Top Innovation High Performance Without Increased Cost: Urbane Homes, Louisville, KY -...

398

HEURISTIC SEARCH FOR HAMILTON CYCLES  

E-Print Network [OSTI]

by combining it with the remaining cycles. The following is the description of the main part of the algorithmHEURISTIC SEARCH FOR HAMILTON CYCLES IN CUBIC GRAPHS Janez ALES, Bojan MOHAR and Tomaz PISANSKI. A successful heuristic algorithm for nding Hamilton cycles in cubic graphs is described. Several graphs from

Mohar, Bojan

399

Edinburgh Research Explorer Money Cycles  

E-Print Network [OSTI]

Edinburgh Research Explorer Money Cycles Citation for published version: Clausen, A & Strub, C 2014 'Money Cycles' Edinburgh School of Economics Discussion Paper Series. Link: Link to publication record date: 11. Dec. 2014 #12;Edinburgh School of Economics Discussion Paper Series Number 249 Money Cycles

Millar, Andrew J.

400

HYDROGEN FROM BIOMASS FOR URBAN TRANSPORTATION  

E-Print Network [OSTI]

biomass, such as peanut shells, for urban transportation. The process involves pyrolysis of the biomassHYDROGEN FROM BIOMASS FOR URBAN TRANSPORTATION Collaborating Project Team Y. Yeboah (PI) and K and liquid fuels) · Potential sources of hydrogen include biomass, natural gas and other fossil fuels. #12

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Chapter 9: Impacts of exurban development on water quality Authors: Kathleen A. Lohse and Adina M. Merenlender  

E-Print Network [OSTI]

water conditions. In particular, little is known about how different types of urban land use, especially land use impact--land-use change models can be important decision support tools to identify areas options, and to identify options that result in water and land conservation. Agricultural and urban land

Merenlender, Adina

402

Small Drains, Big Problems: The Impact of Dry Weather Runoff on Shoreline Water Quality at Enclosed Beaches  

E-Print Network [OSTI]

. In this paper we present field measurements and modeling studies aimed at evaluating the impact of small storm is minimal and human contact likely. Outdoor water conservation and urban retrofits that minimize the volume beach water quality in Newport Bay and other urban-impacted enclosed beaches. INTRODUCTION Enclosed

AghaKouchak, Amir

403

MULTIPARAMETER OPTIMIZATION STUDIES ON GEOTHERMAL ENERGY CYCLES  

E-Print Network [OSTI]

of Practical Cycles for Geothermal Power Plants." GeneralDesign and Optimize Geothermal Power Cycles." Presented atof Practical Cycles for Geothermal Power Plants." General

Pope, W.L.

2011-01-01T23:59:59.000Z

404

THE TRANSPOSED CRITICAL TEMPERATURE RANKINE THERMODYNAMIC CYCLE  

E-Print Network [OSTI]

Process Program for Geothermal Power Plant Cycles,'*for a Rankine Cycle Geothermal Power Plant," Proceedings,Design and Optimize Geothermal Power Cycles," presented at

Pope, William L.

2012-01-01T23:59:59.000Z

405

Life-cycle Assessment of Semiconductors  

E-Print Network [OSTI]

life-cycle energy requirements (e total ) and global warmingtotal life-cycle global warming impacts. Chapter 3 Life-cycle Energy and Global

Boyd, Sarah B.

2009-01-01T23:59:59.000Z

406

Quantum thermodynamic cooling cycle  

E-Print Network [OSTI]

The quantum-mechanical and thermodynamic properties of a 3-level molecular cooling cycle are derived. An inadequacy of earlier models is rectified in accounting for the spontaneous emission and absorption associated with the coupling to the coherent driving field via an environmental reservoir. This additional coupling need not be dissipative, and can provide a thermal driving force - the quantum analog of classical absorption chillers. The dependence of the maximum attainable cooling rate on temperature, at ultra-low temperatures, is determined and shown to respect the recently-established fundamental bound based on the second and third laws of thermodynamics.

Palao, J P; Gordon, J M; Palao, Jose P.; Kosloff, Ronnie; Gordon, Jeffrey M.

2001-01-01T23:59:59.000Z

407

Geothermal Life Cycle Calculator  

SciTech Connect (OSTI)

This calculator is a handy tool for interested parties to estimate two key life cycle metrics, fossil energy consumption (Etot) and greenhouse gas emission (ghgtot) ratios, for geothermal electric power production. It is based solely on data developed by Argonne National Laboratory for DOE’s Geothermal Technologies office. The calculator permits the user to explore the impact of a range of key geothermal power production parameters, including plant capacity, lifetime, capacity factor, geothermal technology, well numbers and depths, field exploration, and others on the two metrics just mentioned. Estimates of variations in the results are also available to the user.

Sullivan, John

2014-03-11T23:59:59.000Z

408

Geothermal Life Cycle Calculator  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

This calculator is a handy tool for interested parties to estimate two key life cycle metrics, fossil energy consumption (Etot) and greenhouse gas emission (ghgtot) ratios, for geothermal electric power production. It is based solely on data developed by Argonne National Laboratory for DOE’s Geothermal Technologies office. The calculator permits the user to explore the impact of a range of key geothermal power production parameters, including plant capacity, lifetime, capacity factor, geothermal technology, well numbers and depths, field exploration, and others on the two metrics just mentioned. Estimates of variations in the results are also available to the user.

Sullivan, John

409

Quantum thermodynamic cooling cycle  

E-Print Network [OSTI]

The quantum-mechanical and thermodynamic properties of a 3-level molecular cooling cycle are derived. An inadequacy of earlier models is rectified in accounting for the spontaneous emission and absorption associated with the coupling to the coherent driving field via an environmental reservoir. This additional coupling need not be dissipative, and can provide a thermal driving force - the quantum analog of classical absorption chillers. The dependence of the maximum attainable cooling rate on temperature, at ultra-low temperatures, is determined and shown to respect the recently-established fundamental bound based on the second and third laws of thermodynamics.

Jose P. Palao; Ronnie Kosloff; Jeffrey M. Gordon

2001-06-08T23:59:59.000Z

410

Beowawe Binary Bottoming Cycle  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd: ScopeDepartment ofEnergyBeowawe Binary Bottoming Cycle

411

High efficiency Brayton cycles using LNG  

DOE Patents [OSTI]

A modified, closed-loop Brayton cycle power conversion system that uses liquefied natural gas as the cold heat sink media. When combined with a helium gas cooled nuclear reactor, achievable efficiency can approach 68 76% (as compared to 35% for conventional steam cycle power cooled by air or water). A superheater heat exchanger can be used to exchange heat from a side-stream of hot helium gas split-off from the primary helium coolant loop to post-heat vaporized natural gas exiting from low and high-pressure coolers. The superheater raises the exit temperature of the natural gas to close to room temperature, which makes the gas more attractive to sell on the open market. An additional benefit is significantly reduced costs of a LNG revaporization plant, since the nuclear reactor provides the heat for vaporization instead of burning a portion of the LNG to provide the heat.

Morrow, Charles W. (Albuquerque, NM)

2006-04-18T23:59:59.000Z

412

Comparison of steady-state and transient CVS cycle emissions of an automotive Stirling engine  

SciTech Connect (OSTI)

The Automotive Stirling Engine Development Program has stringent emission goals for a Stirling-powered vehicle. The present investigation is concerned with the initial development of a procedure for predicting transient CVS urban cycle gaseous emissions from steady-state engine data. Steady-state data from three Mod I automotive Stirling engines are used to predict urban CVS cycle emissions for a Mod I Lerma vehicle. Predicted data with respect to NOx emissions were found to correspond closely to measured values, while there were differences for the CO and HC data. Reasons for these differences are briefly discussed. Attention is given to the test procedure and the measurements, the engine test results, vehicle emissions predictions, and a comparison of vehicle results and steady-state predictions. 11 references.

Farrell, R.A.; Bolton, R.J.

1983-01-01T23:59:59.000Z

413

Climate Change Assessment for Urban Water Resource Availability  

E-Print Network [OSTI]

In the past two decades, scientific evidence has predicted a significant change in the earth’s climatic atmosphere. Although there are many studies that demonstrate changes in the atmospheric temperatures, there are few studies that show how climate...

Martinez, Ramiro

2011-08-08T23:59:59.000Z

414

Developing solutions for sustainable living- the Urban Living Laboratory: The world's largest 'living laboratory' for research on green living  

E-Print Network [OSTI]

if their products are making a di#15;erence in the environment? And how do they know if these so-called green products are being used correctly by consumers to decrease their water usage or electricity bill, or even improve air quality? #22;e answer: the Urban..., testing elements from water resources management to urban design and economics to transportation and logistics. At #28;rst read, it almost sounds like a scene from #27;e Truman Show, a movie about a man whose everyday life is recorded as a television...

Smith, Courtney

2011-01-01T23:59:59.000Z

415

Developing solutions for sustainable living-the Urban Living Laboratory: The world's largest 'living laboratory' for research on green living  

E-Print Network [OSTI]

if their products are making a di#15;erence in the environment? And how do they know if these so-called green products are being used correctly by consumers to decrease their water usage or electricity bill, or even improve air quality? #22;e answer: the Urban..., testing elements from water resources management to urban design and economics to transportation and logistics. At #28;rst read, it almost sounds like a scene from #27;e Truman Show, a movie about a man whose everyday life is recorded as a television...

Smith, Courtney

2011-01-01T23:59:59.000Z

416

Dynamic Analysis of Fuel Cycle Transitioning  

SciTech Connect (OSTI)

This paper examines the time-dependent dynamics of transitioning from a once-through fuel cycle to a closed fuel cycle. The once-through system involves only Light Water Reactors (LWRs) operating on uranium oxide fuel UOX), while the closed cycle includes both LWRs and fast spectrum reactors (FRs) in either a single-tier system or two-tier fuel system. The single-tier system includes full transuranic recycle in FRs while the two-tier system adds one pass of mixed oxide uranium-plutonium (MOX U-Pu) fuel in the LWR. While the analysis primarily focuses on burner fast reactors, transuranic conversion ratios up to 1.0 are assessed and many of the findings apply to any fuel cycle transitioning from a thermal once-through system to a synergistic thermal-fast recycle system. These findings include uranium requirements for a range of nuclear electricity growth rates, the importance of back end fuel cycle facility timing and magnitude, the impact of employing a range of fast reactor conversion ratios, system sensitivity to used fuel cooling time prior to recycle, impacts on a range of waste management indicators, and projected electricity cost ranges for once-through, single-tier and two-tier systems. The study confirmed that significant waste management benefits can be realized as soon as recycling is initiated, but natural uranium savings are minimal in this century. The use of MOX in LWRs decouples the development of recycle facilities from fast reactor fielding, but also significantly delays and limits fast reactor deployment. In all cases, fast reactor deployment was significantly below than predicted by static equilibrium analyses.

Brent Dixon; Steve Piet; David Shropshire; Gretchen Matthern

2009-09-01T23:59:59.000Z

417

The Kalina cycle and similar cycles for geothermal power production  

SciTech Connect (OSTI)

This report contains a brief discussion of the mechanics of the Kalina cycle and ideas to extend the concept to other somewhat different cycles. A modified cycle which has a potential heat rejection advantage but little or no performance improvement is discussed. Then, the results of the application of the Kalina cycle and the modified cycle to a geothermal application (360/degree/F resource) are discussed. The results are compared with published results for the Kalina cycle with high temperature sources and estimates about performance at the geothermal temperatures. Finally, the conclusions of this scoping work are given along with recommendations of the direction of future work in this area. 11 refs., 4 figs., 1 tab.

Bliem, C.J.

1988-09-01T23:59:59.000Z

418

Kouchoul cycle implication in the Tailer engine cycle  

SciTech Connect (OSTI)

The author presents here the study of the Tailer engine modified cycle using the concept of load transfer for the Kouchoul cycle. Theoretical equations and numerical simulation of the Tailer engine modified cycle implicating the Kouchoul cycle are developed. The Tailer engine modified cycle can be improved by approaching cycles of spark plug engines by the addition of a phase of cooling of gases to the bottom dead center (bdc). This is possible only by putting a reservoir of cooled gas in communication with the cylinder to the bottom dead center. So as not to complicate the kinematic of the engine, the communication between cylinder and cooled reservoir is executed by some holes of 1 mm distributed on the whole periphery of the cylinder at the bdc.

Arques, P.

1996-12-31T23:59:59.000Z

419

Effective Fall 2014 Requirements for the Urban Architecture and  

E-Print Network [OSTI]

Effective Fall 2014 8.20.14 Requirements for the Urban Architecture and Urban Design Specialization Required Core Courses: (13 credits) ________ ARCH 507 Sustainable Urbanism (3 credits) ________ ARCH 535 as part of the urban architecture specialization in Portland. In the case that one or more of these course

420

Rankine bottoming cycle safety analysis. Final report  

SciTech Connect (OSTI)

Vector Engineering Inc. conducted a safety and hazards analysis of three Rankine Bottoming Cycle Systems in public utility applications: a Thermo Electron system using Fluorinal-85 (a mixture of 85 mole % trifluoroethanol and 15 mole % water) as the working fluid; a Sundstrand system using toluene as the working fluid; and a Mechanical Technology system using steam and Freon-II as the working fluids. The properties of the working fluids considered are flammability, toxicity, and degradation, and the risks to both plant workers and the community at large are analyzed.

Lewandowski, G.A.

1980-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Life Cycle Inventory of a CMOS Chip  

E-Print Network [OSTI]

are shown. Keywords- Life Cycle Assessment (LCA); Life Cycleindustry, and Life Cycle Assessment (LCA) is emerging as a

Boyd, Sarah; Dornfeld, David; Krishnan, Nikhil

2006-01-01T23:59:59.000Z

422

Open cycle thermoacoustics  

SciTech Connect (OSTI)

A new type of thermodynamic device combining a thermodynamic cycle with the externally applied steady flow of an open thermodynamic process is discussed and experimentally demonstrated. The gas flowing through this device can be heated or cooled in a series of semi-open cyclic steps. The combination of open and cyclic flows makes possible the elimination of some or all of the heat exchangers (with their associated irreversibility). Heat is directly exchanged with the process fluid as it flows through the device when operating as a refrigerator, producing a staging effect that tends to increase First Law thermodynamic efficiency. An open-flow thermoacoustic refrigerator was built to demonstrate this concept. Several approaches are presented that describe the physical characteristics of this device. Tests have been conducted on this refrigerator with good agreement with a proposed theory.

Reid, Robert Stowers

2000-01-01T23:59:59.000Z

423

Stirling cycle rotary engine  

SciTech Connect (OSTI)

A Stirling cycle rotary engine for producing mechanical energy from heat generated by a heat source external to the engine, the engine including: an engine housing having an interior toroidal cavity with a central housing axis for receiving a working gas, the engine housing further having a cool as inlet port, a compressed gas outlet port, a heated compressed gas inlet port, and a hot exhaust gas outlet port at least three rotors each fixedly mounted to a respective rotor shaft and independently rotatable within the toroidal cavity about the central axis; each of the rotors including a pair of rotor blocks spaced radially on diametrically opposing sides of the respective rotor shaft, each rotor block having a radially fixed curva-linear outer surface for sealed rotational engagement with the engine housing.

Chandler, J.A.

1988-06-28T23:59:59.000Z

424

Iron speciation in urban dust  

SciTech Connect (OSTI)

An improved understanding of anthropogenic impacts on ocean fertility requires knowledge of anthropogenic dust mineralogy and associated Fe speciation as a critical step toward developing Fe solubility models constrained by mineralogical composition. This study explored the utility of micro-focused X-ray absorption spectroscopy ({mu}-XAS) in characterizing the speciation of Fe in urban dust samples. A micro-focused beam of 10 x 7 {mu}m made possible the measurement of the Fe K edge XAS spectra of individual dust particles in the PM5.6 size fraction collected in Newark, New Jersey, USA. Spectral analysis indicated the presence of mixtures of Fe-containing minerals within individual dust particles; we observed significant magnetite content along with other Fe(III)-(hydr)oxide minerals which could not be conclusively identified. Our data indicate that detailed quantitative determination of Fe speciation requires extended energy scans to constrain the types and relative abundance of Fe species present. We observe heterogeneity in Fe speciation at the dust particle level, which underscores the importance of analyzing a statistically adequate number of particles within each dust sample. Where possible, {mu}-XAS measurements should be complemented with additional characterization techniques such as {mu}-XRD and bulk XAS to obtain a comprehensive picture of the Fe speciation in dust materials. X-ray microprobes should be used to complement bulk methods used to determine particle composition, methods that fail to record particle heterogeneity. Keywords - Urban dust; Iron; Speciation; Micro-focused X-ray absorption spectroscopy.

Elzinga, E.J.; Fitts, J.; Gao, Y.; Tappero, R.

2011-08-01T23:59:59.000Z

425

An annual quasidifference approach to water price elasticity David R. Bell1  

E-Print Network [OSTI]

, industrial, and heavy commercial water usage, residential/urban water use is more likely to occur in settingsAn annual quasidifference approach to water price elasticity David R. Bell1 and Ronald C. Griffin1] The preferred price specification for retail water demand estimation has not been fully settled by prior

Griffin, Ronald

426

Water Use in the Development and Operations of Geothermal Power...  

Energy Savers [EERE]

Operations of Geothermal Power Plants Water Use in the Development and Operations of Geothermal Power Plants This report summarizes what is currently known about the life cycle...

427

Advanced regenerative absorption refrigeration cycles  

DOE Patents [OSTI]

Multi-effect regenerative absorption cycles which provide a high coefficient of performance (COP) at relatively high input temperatures. An absorber-coupled double-effect regenerative cycle (ADR cycle) (10) is provided having a single-effect absorption cycle (SEA cycle) (11) as a topping subcycle and a single-effect regenerative absorption cycle (1R cycle) (12) as a bottoming subcycle. The SEA cycle (11) includes a boiler (13), a condenser (21), an expansion device (28), an evaporator (31), and an absorber (40), all operatively connected together. The 1R cycle (12) includes a multistage boiler (48), a multi-stage resorber (51), a multisection regenerator (49) and also uses the condenser (21), expansion device (28) and evaporator (31) of the SEA topping subcycle (11), all operatively connected together. External heat is applied to the SEA boiler (13) for operation up to about 500 degrees F., with most of the high pressure vapor going to the condenser (21) and evaporator (31) being generated by the regenerator (49). The substantially adiabatic and isothermal functioning of the SER subcycle (12) provides a high COP. For higher input temperatures of up to 700 degrees F., another SEA cycle (111) is used as a topping subcycle, with the absorber (140) of the topping subcycle being heat coupled to the boiler (13) of an ADR cycle (10). The 1R cycle (12) itself is an improvement in that all resorber stages (50b-f) have a portion of their output pumped to boiling conduits (71a-f) through the regenerator (49), which conduits are connected to and at the same pressure as the highest pressure stage (48a) of the 1R multistage boiler (48).

Dao, Kim (14 Nace Ave., Piedmont, CA 94611)

1990-01-01T23:59:59.000Z

428

Nitrogen Cycling and Ecosystem Exchanges in a Virginia Tidal Freshwater Marsh  

E-Print Network [OSTI]

loading due to watershed development and urbanization. We present a process-based mass balance model of N habitats for juvenile fishes, and buffering storm and flood waters (Odum et al. 1984; Mitsch and Gosselink dominated tidal freshwater marsh in the York River estuary, Virginia. The model, which was based

Neubauer, Scott C.

429

Urban Retrofit: A Whole-Watershed Approach to Urban Stormwater Management  

E-Print Network [OSTI]

rainwater  catchment  cisterns     Derby/Po)er  Creek  Watershed:  Urban  Stormwater  for   managing  stormwater.  Rainwater  catchment  can  be  Stormwater  Management. ”   Capturing  rainwater  runoff  

Lithander, Becky

2012-01-01T23:59:59.000Z

430

One-way coupling of an integrated assessment model and a water resources model: evaluation and implications of future changes over the US Midwest  

SciTech Connect (OSTI)

An integrated model is being developed to advance our understanding of the interactions between human activities, terrestrial system and water cycle, and how system interactions will be affected by a changing climate at the regional scale. As a first step towards that goal, a global integrated assessment model including a waterdemand model is coupled offline with a land surface hydrology – routing – water resources management model. A spatial and temporal disaggregation approach is developed to project the annual regional water demand simulations into a daily time step and subbasin representation. The model demonstrated reasonable ability to represent the historical flow regulation and water supply over the Midwest (Missouri, Upper Mississippi and Ohio). Implications for the future flow regulation, water supply and supply deficit are investigated using a climate change projection with the B1 emission scenario which affects both natural flow and water demand. Over the Midwest, changes in flow regulation are mostly driven by the change in natural flow due to the limited storage capacity over the Ohio and Upper Mississippi river basins. The changes in flow and demand have a combined effect on the Missouri Summer regulated flow. The supply deficit tends to be driven by the change in flow over the region. Spatial analysis demonstrates the relationship between the supply deficit and the change in demand over urban areas not along a main river or with limited storage, and over areas upstream of groundwater dependent fields with therefore overestimated demand.

Voisin, Nathalie; Liu, Lu; Hejazi, Mohamad I.; Tesfa, Teklu K.; Li, Hongyi; Huang, Maoyi; Liu, Ying; Leung, Lai-Yung R.

2013-11-18T23:59:59.000Z

431

Virtuous Cycle Cycles of activity and software projects  

E-Print Network [OSTI]

Inspection #12;Programming Cycle - single bug Selected Bug Shared Code Fix Bug Continuous Integration ~8 cycle cvscheck compilation style checking testing javadocs documentation jumble quality of unit testing #12;NetValue Development cvscheck - Source Code Control and Build Shared Centralized Automatic

Pfahringer, Bernhard

432

New Developments in GIS in Water Resources  

E-Print Network [OSTI]

• Standardized formats Data: • Dynamic in time • Simple in space (points) • No standardized formats What is “Hydro”? • Hydrology • Hydrography Circulation of the waters of the earth through the hydrologic cycle The “blue lines” on maps Properties of Water... of query functions • Returns data in WaterML Services-Oriented Architecture for Water Data • Links geographically distributed information servers through internet • Web Services Description Language (WSDL from W3C) • We designed WaterML as a web...

Maidment, David

2008-11-19T23:59:59.000Z

433

Urban Decontamination Experience at Pripyat Ukraine - 13526  

SciTech Connect (OSTI)

This paper describes the efficiency of radioactive decontamination activities of the urban landscape in the town of Pripyat, Ukraine. Different methods of treatment for various urban infrastructure and different radioactive contaminants are assessed. Long term changes in the radiation condition of decontaminated urban landscapes are evaluated: 1. Decontamination of the urban system requires the simultaneous application of multiple methods including mechanical, chemical, and biological. 2. If a large area has been contaminated, decontamination of local areas of a temporary nature. Over time, there is a repeated contamination of these sites due to wind transport from neighboring areas. 3. Involvement of earth-moving equipment and removal of top soil by industrial method achieves 20-fold reduction in the level of contamination by radioactive substances, but it leads to large amounts of waste (up to 1500 tons per hectare), and leads to the re-contamination of treated areas due to scatter when loading, transport pollutants on the wheels of vehicles, etc.. (authors)

Paskevych, Sergiy [Institute for Safety Problems of Nuclear Power Plants, National Academy of Sciences of Ukraine, 36 a Kirova str. Chornobyl, Kiev region, 07200 (Ukraine)] [Institute for Safety Problems of Nuclear Power Plants, National Academy of Sciences of Ukraine, 36 a Kirova str. Chornobyl, Kiev region, 07200 (Ukraine); Voropay, Dmitry [Federal State Unitary Enterprise 'Russian State Center of Inventory and Registration and Real Estate - Federal Bureau of Technical Inventory', 37-2 Bernadsky Prospekt, Moscow Russia 119415 (Russian Federation)] [Federal State Unitary Enterprise 'Russian State Center of Inventory and Registration and Real Estate - Federal Bureau of Technical Inventory', 37-2 Bernadsky Prospekt, Moscow Russia 119415 (Russian Federation); Schmieman, Eric [Battelle Memorial Institute, PO Box 999 MSIN K6-90, Richland, WA 99352 (United States)] [Battelle Memorial Institute, PO Box 999 MSIN K6-90, Richland, WA 99352 (United States)

2013-07-01T23:59:59.000Z

434

Cornell's Urban Sustainability Initiatives ACSF Lunch Summary  

E-Print Network [OSTI]

Sustainability Initiatives lunch. After introductions of participants, Josh Cerra (Landscape Architecture) gave sustainability initiatives conducted in cooperation with Landscape Architecture in the ethnically diverseCornell's Urban Sustainability Initiatives ACSF Lunch Summary Compiled by Marianne Krasny (NTRES

Angenent, Lars T.

435

Counter urban transformation in Istanbul Beyoglu  

E-Print Network [OSTI]

Urban transformation has become central to the Turkish government's neo-liberal program of commercial development for Istanbul. These transformations have provoked public discontent and passionate responses, the largest ...

Uzunyayla, Sakine Dicle

2014-01-01T23:59:59.000Z

436

Methods for Allocating Urban Emergency Units  

E-Print Network [OSTI]

An urban emergency service system provides mobile units (vehicles) to respond to requests for service which can occur at any time and any place throughout a city. This paper surveys recent quantitative work aimed at improving ...

Chaiken, Jan M.

437

Biofuels grant..........................3 Urban design video.................3  

E-Print Network [OSTI]

· Biofuels grant..........................3 · Urban design video.................3 A monthly report represent- ing regional organizations, local governments, and regulatory agencies. TIRP is intended, and fostering collaboration between government and academia. Dawn Spanhake, CTS assistant director of program

Minnesota, University of

438

Urban solarium : thermal performance in Boston  

E-Print Network [OSTI]

This thesis addresses the issue of energy efficiency through the lens of thermal performance in the context of urban housing in the city of Boston. Located in the historic brick row house neighborhood of the South End, the ...

Hsu, Juliet Chia-Wen

2012-01-01T23:59:59.000Z

439

Ecotransology : integrated design for urban mobility  

E-Print Network [OSTI]

This thesis demonstrates a rethinking of urban mobility through ecological design. Human mobility and ecological accountability are inextricably linked in city design; our current world ecological crisis underscores this ...

Joachim, Mitchell Whitney

2006-01-01T23:59:59.000Z

440

Metromorphosis : evolution on the urban island  

E-Print Network [OSTI]

Cities are very much alive. Like islands, they provide a natural testing ground for evolution. With more than half of the world's population living in urban areas now, the influence cities have on the planet's life is ...

Vezina, Kenrick (Kenrick Freitas)

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Webinar: Tapping Into Wind in Urban Environments  

Broader source: Energy.gov [DOE]

This live webinar presented by DOE on "Community Renewable Energy Success Stories: Tapping into Wind in Urban Environments" will take place on Tuesday, September 18, 2012, from 3:00 – 4:15 p.m....

442

The urban garden : Port Alliance, Texas  

E-Print Network [OSTI]

This thesis focuses on of three urban parks; Central Park i n New York , the Fens to Franklin Park in Boston, and Rock Creek Park in washington, designed by Frederick Law Olmsted and the growth of the cities around them. ...

Manning, Isaac Hall, 1958-

1990-01-01T23:59:59.000Z

443

Urban Parks: Volunteers and Civic Engagement  

E-Print Network [OSTI]

When citizens are engaged with urban park and recreation departments, everyone benefits. This publication describes successful programs that involve community volunteers, and explains what managers can do to engage citizens in such programs....

Schuett, Michael A.

2007-03-02T23:59:59.000Z

444

5, 1118311213, 2005 simulation of urban  

E-Print Network [OSTI]

com-25 plex, and hence, it requires a special treatment. The surface energy balance is the 11184 #12/surfaces and urban districts such as city center, high buildings, industrial, and residential. Results showed strong

Paris-Sud XI, Université de

445

Sustainable and equitable urban environments in Asia  

E-Print Network [OSTI]

This study identifies some of the factors and conditions that can encourage the development of sustainable and equitable urban environments. It argues that cities will continue to grow and that it is not productive to view ...

Badshah, Akhtar

1993-01-01T23:59:59.000Z

446

FULL FUEL CYCLE ASSESSMENT WELL TO WHEELS ENERGY INPUTS,  

E-Print Network [OSTI]

FULL FUEL CYCLE ASSESSMENT WELL TO WHEELS ENERGY INPUTS, EMISSIONS, AND WATER IMPACTS Preparation for the AB 1007 (Pavley) Alternative Transportation Fuels Plan Proceeding Prepared For: California Energy, Project Manager Ray Tuvell, Manager EMERGING FUELS & TECHNOLOGY OFFICE Rosella Shapiro, Deputy Director

447

FULL FUEL CYCLE ASSESSMENT WELL TO TANK ENERGY INPUTS,  

E-Print Network [OSTI]

FULL FUEL CYCLE ASSESSMENT WELL TO TANK ENERGY INPUTS, EMISSIONS, AND WATER IMPACTS Prepared For be divided into two parts: · Well-to-Tank (WTT) Feedstock extraction, transport, storage, processing, distribution, transport, and storage · Tank-to-Wheels (TTW) Refueling, consumption and evaporation The full

448

Development of the Miller cycle for natural gas engines  

SciTech Connect (OSTI)

Natural gas is a viable alternative fuel to reduce exhaust emissions. But comparing natural gas engines with base diesel engines, the power output is 20--30% lower and the thermal efficiency is 4--5% lower due to knocking in the gas engine. The Miller cycle with independent presetting of the compression and expansion ratio for gas engines increases the engine efficiency with increased expansion ratio, while engine knocking can be avoided by reducing the compression ratio. A turbocharged inter-cooled spark ignition gas engine was modified to the Miller cycle engine and a thermal efficiency of 38%, 1.14MPa BMEP was attained with a three-way catalyst system compared to a thermal efficiency of 33%, 0.97 Mpa BMEP achieved by the conventional Otto cycle. On the other hand, the higher boost pressure, due to the lower compression ratio for avoiding knocking, caused a higher back pressure. This hinders the advantages of the Miller cycle and it is difficult to improve the engine performance further. Therefore, based on the Miller cycle, other technologies for avoiding knocking were developed to improve engine performance. A two-stage intake cooling system was developed, in which a new inter-cooler is installed in the intake passages close to the cylinder head as a second inter-cooler, besides an ordinary charge cooler. This significantly cools the blow-back mixture from the cylinder in the Late Intake-Closing Method Miller cycle. Besides the two-stage intake cooling system, a new split cooling system was also developed for the Miller cycle, where cooling water flowing to the cylinder head is independent of that flowing to the cylinder block. Cooling water at 313 K is circulated in the cylinder head to extend the knock-free zone and to improve the intake charging efficiency while cooling water at 353 K is circulated in the cylinder block to reduce the friction loss.

Zhang, F.R.; Okamoto, Kazuhisa; Shimogata, Satoshi; Shoji, Fujio [Tokyo Gas Co., Ltd. (Japan). Energy Technology Research Inst.

1996-12-31T23:59:59.000Z

449

How Can China Lighten Up? Urbanization, Industrialization and Energy Demand Scenarios  

E-Print Network [OSTI]

urbanization and trade to elucidate the energy and emissionsindustrial energy use, lower urbanization and trade as wellof urbanization rate and trade as well as energy efficiency

Aden, Nathaniel T.

2010-01-01T23:59:59.000Z

450

Institute of Water Research Annual Technical Report  

E-Print Network [OSTI]

decision support systems (SDSS). These geospatial decision support systems provide an analytical framework in partnership with other states in EPA Region 5 using state-of-the-art decision support systems. The Institute. The Institute also provides important support to MSU-WATER, a major university initiative dealing with urban

451

Biomass Gasification Combined Cycle  

SciTech Connect (OSTI)

Gasification combined cycle continues to represent an important defining technology area for the forest products industry. The ''Forest Products Gasification Initiative'', organized under the Industry's Agenda 2020 technology vision and supported by the DOE ''Industries of the Future'' program, is well positioned to guide these technologies to commercial success within a five-to ten-year timeframe given supportive federal budgets and public policy. Commercial success will result in significant environmental and renewable energy goals that are shared by the Industry and the Nation. The Battelle/FERCO LIVG technology, which is the technology of choice for the application reported here, remains of high interest due to characteristics that make it well suited for integration with the infrastructure of a pulp production facility. The capital cost, operating economics and long-term demonstration of this technology area key input to future economically sustainable projects and must be verified by the 200 BDT/day demonstration facility currently operating in Burlington, Vermont. The New Bern application that was the initial objective of this project is not currently economically viable and will not be implemented at this time due to several changes at and around the mill which have occurred since the inception of the project in 1995. The analysis shows that for this technology, and likely other gasification technologies as well, the first few installations will require unique circumstances, or supportive public policies, or both to attract host sites and investors.

Judith A. Kieffer

2000-07-01T23:59:59.000Z

452

Life Cycle Asset Management  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

(The following directives are deleted or consolidated into this Order and shall be phased out as noted in Paragraph 2: DOE 1332.1A; DOE 4010.1A; DOE 4300.1C; DOE 4320.1B; DOE 4320.2A; DOE 4330.4B; DOE 4330.5; DOE 4540.1C; DOE 4700.1). This Order supersedes specific project management provisions within DOE O 430.1A, LIFE CYCLE ASSET MANAGEMENT. The specific paragraphs canceled by this Order are 6e(7); 7a(3); 7b(11) and (14); 7c(4),(6),(7),(11), and (16); 7d(4) and (8); 7e(3),(10), and (17); Attachment 1, Definitions (item 30 - Line Item Project, item 42 - Project, item 48 - Strategic System); and Attachment 2, Contractor Requirements Document (paragraph 1d regarding a project management system). The remainder of DOE O 430.1A remains in effect. Cancels DOE O 430.1. Canceled by DOE O 413.3.

1998-10-14T23:59:59.000Z

453

The Organic Rankine Cycle System, Its Application to Extract Energy From Low Temperature Waste Heat  

E-Print Network [OSTI]

in a Rankine Cycle to extract The theoretical Rankine Cycle efficiency (~R) is energy from low temperature waste heat. By 1968, a defined as: 3.8 megawatt unit using R-11 refrigerant was placed in commercial operation in Japan (2) and currently ?ZR.... Figure 2 compares the theo The basic Organic Rankine Cycle may be described retical Rankine efficiency for several hydrocarbons, using the Pressure-Enthalpy Diagram of a typical fluorocarbons and water within the evaporating working fluid (R-11). (See...

Sawyer, R. H.; Ichikawa, S.

1980-01-01T23:59:59.000Z

454

Orbital Resonance and Solar Cycles  

E-Print Network [OSTI]

We present an analysis of planetary moves, encoded in DE406 ephemerides. We show resonance cycles between most planets in Solar System, of differing quality. The most precise resonance - between Earth and Venus, which not only stabilizes orbits of both planets, locks planet Venus rotation in tidal locking, but also affects the Sun: This resonance group (E+V) also influences Sunspot cycles - the position of syzygy between Earth and Venus, when the barycenter of the resonance group most closely approaches the Sun and stops for some time, relative to Jupiter planet, well matches the Sunspot cycle of 11 years, not only for the last 400 years of measured Sunspot cycles, but also in 1000 years of historical record of "severe winters". We show, how cycles in angular momentum of Earth and Venus planets match with the Sunspot cycle and how the main cycle in angular momentum of the whole Solar system (854-year cycle of Jupiter/Saturn) matches with climatologic data, assumed to show connection with Solar output power and insolation. We show the possible connections between E+V events and Solar global p-Mode frequency changes. We futher show angular momentum tables and charts for individual planets, as encoded in DE405 and DE406 ephemerides. We show, that inner planets orbit on heliocentric trajectories whereas outer planets orbit on barycentric trajectories.

P. A. Semi

2009-03-29T23:59:59.000Z

455

Extreme Financial cycles$ B. Candelonb,  

E-Print Network [OSTI]

Extreme Financial cycles$ B. Candelonb, , G. Gauliera , C. Hurlinb aUniversity Maastricht proposes a new approach to date extreme financial cycles. Elabo- rating on recent methods in extreme value theory, it elaborates an extension of the famous calculus rule to detect extreme peaks and troughs

Paris-Sud XI, Université de

456

This study is funded by the National Science Foundation (NSF) through grant EF1049251: "Assessing Decadal Climate Change Impacts on Urban Populations in the Southwestern United States."  

E-Print Network [OSTI]

Decadal Climate Change Impacts on Urban Populations in the Southwestern United States." Data calibrates a point-scale soil water balance model to available soil moisture data, using historical, despite its notable effects on water, energy and biomass conditions. This omission is noteworthy

Hall, Sharon J.

457

Efficient Water Use for Texans: Policies, Tools, and Management Strategies  

E-Print Network [OSTI]

on Environmental Quality are continuing to evaluate options for reuse of separated graywater streams, as well as treatment of the entire wastewater stream to a quality suitable for outdoor irrigation. Installation of a domestic graywater reuse system that stores... from rural to urban areas, and with the migration of people from other states to Texas cities, urban demands will increasingly compete with agricultural interests for the same water (figure 1). For instance, in the Lower Rio Grande Valley, irrigation...

Gerston, Jan; MacLeod, Mark; Jones, C. Allan

458

Maryland Water Resources Research Center Annual Technical Report  

E-Print Network [OSTI]

of a Computer-Assisted Decision Support System Using Realistic Interactive Visualization as a Learning Tool Water Resources Research Center (MWRRC) supported a variety of research and outreach activities to restore natural hydro-ecological function in urban headwater streams; analyzing the water-holding capacity

459

Montana Water Resources Research Center Annual Technical Report  

E-Print Network [OSTI]

of coalbed methane development. Broad exploitation of this resource has been deferred in Montana pending will soon be made. When coalbed methane is extracted, large volumes of saline water will be released the water resource impacts of coalbed methane development in southeastern Montana. At the local level, urban

460

Sodium shortage as a constraint on the carbon cycle in an inland tropical rainforest  

E-Print Network [OSTI]

Sodium shortage as a constraint on the carbon cycle in an inland tropical rainforest Michael- composition of pure cellulose by up to 50%, compared with stream water alone. These effects emerged after 134). We provide experimental evidence that Na shortage slows the carbon cycle. Because 80% of global

Kaspari, Mike

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Cycle Analysis on Ocean Geothermal Power Generation using Multi-staged Turbine  

E-Print Network [OSTI]

Cycle Analysis on Ocean Geothermal Power Generation using Multi-staged Turbine 2013. 09. 11 Korea ORC #12;Cycle simulation Solver : HYSYS Basic simulation design T-S diagram Pump Turbine Evaporator & turbine : iso-entropic process Pump Turbine Evaporator Condenser 4 1 2 3 Geothermal water Deep seawater

462

Life Cycle environmental Assessment (LCA) of sanitation systems including sewerage: Case of vertical  

E-Print Network [OSTI]

Waste Water Treatment Plant (Renou, 2006) and wastewater sanitation systems (Doka, 2007). ApplicationLife Cycle environmental Assessment (LCA) of sanitation systems including sewerage: Case The article presents the application of Life Cycle Assessment (LCA) to a complete sanitation system including

Paris-Sud XI, Université de

463

Iron Speciation in Urban Dust  

SciTech Connect (OSTI)

An improved understanding of anthropogenic impacts on ocean fertility requires knowledge of anthropogenic dust mineralogy and associated Fe speciation as a critical step toward developing Fe solubility models constrained by mineralogical composition. This study explored the utility of micro-focused X-ray absorption spectroscopy ({mu}-XAS) in characterizing the speciation of Fe in urban dust samples. A micro-focused beam of 10 x 7 {micro}m made possible the measurement of the Fe K edge XAS spectra of individual dust particles in the PM5.6 size fraction collected in Newark, New Jersey, USA. Spectral analysis indicated the presence of mixtures of Fe-containing minerals within individual dust particles; we observed significant magnetite content along with other Fe(III)-(hydr)oxide minerals which could not be conclusively identified. Our data indicate that detailed quantitative determination of Fe speciation requires extended energy scans to constrain the types and relative abundance of Fe species present. We observe heterogeneity in Fe speciation at the dust particle level, which underscores the importance of analyzing a statistically adequate number of particles within each dust sample. Where possible, {mu}-XAS measurements should be complemented with additional characterization techniques such as {mu}-XRD and bulk XAS to obtain a comprehensive picture of the Fe speciation in dust materials. X-ray microprobes should be used to complement bulk methods used to determine particle composition, methods that fail to record particle heterogeneity.

E Elzinga; Y Gao; J Fitts; R Tappero

2011-12-31T23:59:59.000Z

464

2007 Urban Remote Sensing Joint Event Application of satellite Remote Sensing for Urban  

E-Print Network [OSTI]

2007 Urban Remote Sensing Joint Event Application of satellite Remote Sensing for Urban Risk Analysis: a case study of the 2003 extreme heat wave in Paris Bénédicte Dousset Hawaii Institute@ogs.trieste.it Abstract ­ Satellite observations are used to monitor the August 2003 heat wave in Paris

Paris-Sud XI, Université de

465

Scaling the Daytime Urban Heat Island and Urban-Breeze Circulation JULIA HIDALGO  

E-Print Network [OSTI]

an atmospheric numerical model coupled with an urban surface energy balance (SEB) model. For example, simulations atmospheric Nonhydrostatic Meso- scale (Meso-NH) model (Lafore et al. 1998) with a Town Energy Balance urban parameters chosen were the size of the city, the height of the thermal inversion topping the mixed turbulent

Ribes, Aurélien

466

ISDA 2010, Montpellier 28-30 Juin 2010 1 URBAN AND PERI URBAN HORTICULTURE AND  

E-Print Network [OSTI]

are spreading into rural areas. There is increasing population densities even in remote areas, with households agriculteurs évoluent en Afrique, caractérisé par la transition vers une population à majorité urbaine et l the capability approach to analyse the impact of urban and peri urban horticulture on development in Africa

Paris-Sud XI, Université de

467

Free-Space Optical High-Speed Link in the Urban Area of Southern Rome: Preliminary Experimental  

E-Print Network [OSTI]

Free-Space Optical High-Speed Link in the Urban Area of Southern Rome: Preliminary Experimental Set is placed on water particle effects (fog and rain). A semi-empirical model evaluation of these atmospheric, Piazza Pakistan, height 50 m), and the headquarters of the Department of Foreign Trade (point C, Viale

Marzano, Frank Silvio

468

High efficiency carbonate fuel cell/turbine hybrid power cycle  

SciTech Connect (OSTI)

The hybrid power cycle studies were conducted to identify a high efficiency, economically competitive system. A hybrid power cycle which generates power at an LHV efficiency > 70% was identified that includes an atmospheric pressure direct carbonate fuel cell, a gas turbine, and a steam cycle. In this cycle, natural gas fuel is mixed with recycled fuel cell anode exhaust, providing water for reforming fuel. The mixed gas then flows to a direct carbonate fuel cell which generates about 70% of the power. The portion of the anode exhaust which is not recycled is burned and heat transferred through a heat exchanger (HX) to the compressed air from a gas turbine. The heated compressed air is then heated further in the gas turbine burner and expands through the turbine generating 15% of the power. Half the exhaust from the turbine provides air for the anode exhaust burner. All of the turbine exhaust eventually flows through the fuel cell cathodes providing the O2 and CO2 needed in the electrochemical reaction. Exhaust from the cathodes flows to a steam system (heat recovery steam generator, staged steam turbine generating 15% of the cycle power). Simulation of a 200 MW plant with a hybrid power cycle had an LHV efficiency of 72.6%. Power output and efficiency are insensitive to ambient temperature, compared to a gas turbine combined cycle; NOx emissions are 75% lower. Estimated cost of electricity for 200 MW is 46 mills/kWh, which is competitive with combined cycle where fuel cost is > $5.8/MMBTU. Key requirement is HX; in the 200 MW plant studies, a HX operating at 1094 C using high temperature HX technology currently under development by METC for coal gassifiers was assumed. A study of a near term (20 MW) high efficiency direct carbonate fuel cell/turbine hybrid power cycle has also been completed.

Steinfeld, G.; Maru, H.C. [Energy Research Corp., Danbury, CT (United States); Sanderson, R.A. [Sanderson (Robert) and Associates, Wethersfield, CT (United States)

1996-07-01T23:59:59.000Z

469

Comparison of steady-state and transient CVS cycle emissions of an automotive Stirling engine  

SciTech Connect (OSTI)

One of the goals of the Automotive Stirling Engine Development Program, sponsored by the Department of Energy and managed by NASA/Lewis Research Center, is to develop a rationale for predicting transient CVS cycle emissions from steady-state engine data. A technique is developed that integrates engine emissions as a function of fuel flow over a modelled CVS cycle to predict vehicle urban cycle results. Steady-state emissions data from three Mod I engines* burning unleaded gasoline are used to predict vehicle NO /SUB x/, CO, and HC emissions. A total of 155 data points representing variations in engine power, excess air (lambda), and the exhaust gas recirculation (EGR) schedule are utilized. Predictions are then compared to the results of nine urban CVS cycle tests of the Mod I/Lerma vehicle, and a conclusion is reached that very accurate predictions of vehicle NO /SUB x/ emissions are possible. CO and HC emissions are considerably higher than predicted due to extreme sensitivity of CO emissions to Lambda, the effect of heater head temperature, and failure of the engine to accurately reflect emissions during start-up.

Farrell, R.A.; Bolton, R.J.

1983-10-01T23:59:59.000Z

470

Implications of the market and regulatory environment in China on multinational water companies  

E-Print Network [OSTI]

Amidst China's rapid industrialization and urbanization following market-oriented reforms in its economy, the shortcomings of the state-controlled municipal water sector was brought to the fore. The Chinese government ...

Lung, Wen Zheng

2014-01-01T23:59:59.000Z

471

Energy Comparison Between Conventional and Chilled Water Thermal Storage Air Conditioning Systems  

E-Print Network [OSTI]

, encouraged by government subsidies and driven by the rapid and continual expansion in building construction, urban development, and the heavy reliance on Air Conditioning (AC) systems for the cooling of buildings. The Chilled Water Thermal Storage (CWTS...

Sebzali, M.; Hussain, H. J.; Ameer, B.

2010-01-01T23:59:59.000Z

472

Linking Water Conservation and Natural Resource Stewardship in the Trinity River Basin  

E-Print Network [OSTI]

Water conservation is a critical issue in Texas today. This publication explores the relationship between ecosystem health and land stewardship in the Trinity River Basin. It also describes how responsible land stewardship can be applied in urban...

Cathey, James; Locke, Shawn; Feldpausch, A.M.; Parker, I.D.; Frentress, C.; Whiteside, J.; Mason, C.; Wagner, M.

2007-09-04T23:59:59.000Z

473

Transitory places : a water terminal and immigration station for East Boston  

E-Print Network [OSTI]

An experience of the water in the city is often absent today as the urban has increasingly infringed on natural environments creating a distinct separation between the two. This thesis is an architectural exploration of ...

Alessi, Alison Ann, 1974-

2001-01-01T23:59:59.000Z

474

Position Information Job Title Extension Assistant/Associate Professor -Urban Forestry  

E-Print Network [OSTI]

Position Information Job Title Extension Assistant/Associate Professor - Urban Forestry Department field of urban forestry, with a focus on urbanization and changing land use. Potential topics include faculty. Extension responsibilities include developing and coordinating a statewide urban forestry

Watson, Craig A.

475

Mayors, Markets and Municipal Reform: The Politics of Water Delivery in Mexico  

E-Print Network [OSTI]

cycle…there is a lack of water in the city, it threatensbut did not because of lack of water, because they needed aconcerned about the lack of adequate water provision and

Herrera, Veronica Maria Sol

2011-01-01T23:59:59.000Z

476

High-speed thermal cycling system and method of use  

DOE Patents [OSTI]

A thermal cycling system and method of use are described. The thermal cycling system is based on the circulation of temperature-controlled water directly to the underside of thin-walled polycarbonate plates. The water flow is selected from a manifold fed by pumps from heated reservoirs. The plate wells are loaded with typically 15-20 microliters of reagent mix for the PCR process. Heat transfer through the thin polycarbonate is sufficiently rapid that the contents reach thermal equilibrium with the water in less than 15 seconds. Complete PCR amplification runs of 40 three-step cycles have been performed in as little as 14.5 minutes, with the results showing substantially enhanced specificity compared to conventional technology requiring run times in excess of 100 minutes. The plate clamping station is designed to be amenable to robotic loading and unloading of the system. It includes a heated lid, thus eliminating the need for mineral oil overlay of the reactants. The present system includes three or more plate holder stations, fed from common reservoirs but operating with independent switching cycles. The system can be modularly expanded. 13 figs.

Hansen, A.D.A.; Jaklevic, J.M.

1996-04-16T23:59:59.000Z

477

High-speed thermal cycling system and method of use  

DOE Patents [OSTI]

A thermal cycling system and method of use are described. The thermal cycling system is based on the-circulation of temperature-controlled water directly to the underside of thin-walled polycarbonate microtiter plates. The water flow is selected from a manifold fed by pumps from heated reservoirs. The plate wells are loaded with typically 15-20 .mu.l of reagent mix for the PCR process. Heat transfer through the thin polycarbonate is sufficiently rapid that the contents reach thermal equilibrium with the water in less than 15 seconds. Complete PCR amplification runs of 40 three-step cycles have been performed in as little as 14.5 minutes, with the results showing substantially enhanced specificity compared to conventional technology requiring run times in excess of 100 minutes. The plate clamping station is designed to be amenable to robotic loading and unloading of the system. It includes a heated lid, thus eliminating the need for mineral oil overlay of the reactants. The present system includes three or more plate holder stations, fed from common reservoirs but operating with independent switching cycles. The system can be modularly expanded.

Hansen, Anthony D. A. (Berkely, CA); Jaklevic, Joseph M. (Lafayette, CA)

1996-01-01T23:59:59.000Z

478

Water Quality  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Water Quality Water Quality We protect water quality through stormwater control measures and an extensive network of monitoring wells and stations encompassing groundwater, surface...

479

Estimating changes in urban ozone concentrations due to life cycle emissions from hydrogen transportation systems  

E-Print Network [OSTI]

to hydrogen pathways: (1) on-site hydrogen production; (2)central hydrogen production with pipeline delivery;and (3) central hydrogen production with liquid hydrogen

Wang, Guihua; Ogden, Joan M; Chang, Daniel P.Y.

2007-01-01T23:59:59.000Z

480

Estimating changes in urban ozone concentrations due to life cycle emissions from hydrogen transportation systems  

E-Print Network [OSTI]

production with gaseous hydrogen pipeline delivery, and2) central hydrogen production with pipeline delivery; and (Central hydrogen production with pipeline delivery systems

Wang, Guihua; Ogden, Joan M; Chang, Daniel P.Y.

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "urban water cycle" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Life-Cycle Costs of Alternative Fuels: Is Biodiesel Cost Competitve for Urban Buses  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 LawrenceEfeedstocks and the climateLife in the

482

Life Cycle Inventory of Biodiesel and Petroleum Diesel for Use in an Urban Bus  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: Crystal structureComposite--FORRemarksHEATINGI _ _++,J

483

Solar hydrogen for urban trucks  

SciTech Connect (OSTI)

The Clean Air Now (CAN) Solar Hydrogen Project, located at Xerox Corp., El Segundo, California, includes solar photovoltaic powered hydrogen generation, compression, storage and end use. Three modified Ford Ranger trucks use the hydrogen fuel. The stand-alone electrolyzer and hydrogen dispensing system are solely powered by a photovoltaic array. A variable frequency DC-AC converter steps up the voltage to drive the 15 horsepower compressor motor. On site storage is available for up to 14,000 standard cubic feet (SCF) of solar hydrogen, and up to 80,000 SCF of commercial hydrogen. The project is 3 miles from Los Angeles International airport. The engine conversions are bored to 2.9 liter displacement and are supercharged. Performance is similar to that of the Ranger gasoline powered truck. Fuel is stored in carbon composite tanks (just behind the driver`s cab) at pressures up to 3600 psi. Truck range is 144 miles, given 3600 psi of hydrogen. The engine operates in lean burn mode, with nil CO and HC emissions. NO{sub x} emissions vary with load and rpm in the range from 10 to 100 ppm, yielding total emissions at a small fraction of the ULEV standard. Two trucks have been converted for the Xerox fleet, and one for the City of West Hollywood. A public outreach program, done in conjunction with the local public schools and the Department of Energy, introduces the local public to the advantages of hydrogen fuel technologies. The Clean Air Now program demonstrates that hydrogen powered fleet development is an appropriate, safe, and effective strategy for improvement of urban air quality, energy security and avoidance of global warming impact. Continued technology development and cost reduction promises to make such implementation market competitive.

Provenzano, J.: Scott, P.B.; Zweig, R. [Clean Air Now, Northridge, CA (United States)

1997-12-31T23:59:59.000Z

484

Constructing a GIS-based 3D urban model using LiDAR and aerial photographs  

E-Print Network [OSTI]

; Rau and Chen 2001; Shiode 2001; Zhou et al. 2004). The 3D urban modeling technique enables urban residents to visualize future urban construction and development. It also supports standard activities of urban design and city planning and allows... of geometric information about urban objects, and it is an efficient tool for designing and creating urban objects (Sinning-Meister et al 1996). The contemporary CAD systems also offer full 3D rendering capability to visualize urban objects and the urban...

Lin, Wei-Ming

2005-02-17T23:59:59.000Z

485

Urban Form Energy Use and Emissions in China: Preliminary Findings and Model Proof of Concept  

E-Print Network [OSTI]

of rural biomass by urban commercial energy services. Thisof rural biomass by urban commercial energy services. 2 End-

Aden, Nathaniel

2011-01-01T23:59:59.000Z

486

Optimization of Air Conditioning Cycling  

E-Print Network [OSTI]

on a 3-ton residential air conditioner are then presented to intuitively understand the effect of expansion valve and evaporator fan cycling in a real system. A real time optimization method is explored and the feasibility, recommendations for a...

Seshadri, Swarooph

2012-10-19T23:59:59.000Z

487

American business cycles and innovation  

E-Print Network [OSTI]

Economists have long studied innovation and its effects on business cycles. Economist Joseph Alois Schumpeter (1883-1950) was the first economist to thoroughly discuss these ideas in his Theorie der wirtschaftlichen Entwicklung, published in 1911...

Hood, Michael

2013-02-22T23:59:59.000Z

488

Marginalized Monitoring: Adaptively Managing Urban Stormwater  

E-Print Network [OSTI]

environmental assessment, 28 Superfund decisionmaking, 29 Endangered Species Act decisionmaking, 30 and water management.Environmental Impacts Under Florida Water Law: From Water Wars Towards Adaptive Management ,water infrastructure problems. And yet, the environmental management

Scanlan, Melissa K; Tai, Stephanie

2013-01-01T23:59:59.000Z

489

Life Cycle Inventory of a CMOS Chip  

E-Print Network [OSTI]

Reichl, H. “Life cycle inventory analysis and identificationAllen, D.T. ; “Life cycle inventory development for waferLife Cycle Inventory of a CMOS Chip Sarah Boyd and David

Boyd, Sarah; Dornfeld, David; Krishnan, Nikhil

2006-01-01T23:59:59.000Z

490

Life-cycle Assessment of Semiconductors  

E-Print Network [OSTI]

yield. A hybrid life cycle assessment (LCA) model is used;more accurate life-cycle assessment (LCA) of electronicthe purposes of life-cycle assessment (LCA). While it may be

Boyd, Sarah B.

2009-01-01T23:59:59.000Z

491

Effects of urbanization on stream channel morpology, Madisonville, Texas  

E-Print Network [OSTI]

This thesis investigates the effects of urban development on two small streams near Madisonville, Texas. One stream is natural and used as a control against which Town Branch, the urbanized stream, is compared. Changes in width, depth, and channel...

Harris, Daniel Lee

2002-01-01T23:59:59.000Z

492

Digital places : rethinking urban elements : the case of the tower  

E-Print Network [OSTI]

Problem - How can we make working, living and all aspects of our life in the urban tower more palatable? How can we create environment at the urban tower scale. With technology as one of the biggest drivers of social and ...

Gichuhi, Christopher M. (Christopher Mwethera), 1976-

2004-01-01T23:59:59.000Z

493

Urban acupuncture as a strategy for São Paulo  

E-Print Network [OSTI]

This work is the study of one city, São Paulo, and one idea, how small and precise architectural interventions can be catalytic to major urban transformations. The largest urban agglomeration in the southern hemisphere is ...

Shieh, Leonardo

2006-01-01T23:59:59.000Z

494

Architecture of the rail : exploring the potential of urban infrastructure  

E-Print Network [OSTI]

This thesis is the pursuit of a sensitivity for the relationship between urban infrastructure and architectural form, an attempt to restore a quality of "publicness" in the urban landscape through the implementation of a ...

Iboshi, Gregory Kenji

1994-01-01T23:59:59.000Z

495

Modernity of Chinese urban neighborhoods : toward new spatial forms  

E-Print Network [OSTI]

There is always a general dilemma about how to balance technology and humanity in urban neighborhood development. Modem technology creates many new spatial forms for Chinese urban neighborhoods, but it also destroys many ...

Yi, Qian, 1973-

2002-01-01T23:59:59.000Z

496

Transportation planning for mega events : a model of urban change  

E-Print Network [OSTI]

My study is about opportunities for revolutionary developments in urban transport. Often, we think of transport and urban development as an evolutionary process, yet there exist a few opportunities for cities to revolutionize ...

Kassens, Eva

2009-01-01T23:59:59.000Z

497

Crowdsourcing urban air temperatures from smartphone battery?temperatures  

E-Print Network [OSTI]

Accurate air temperature observations in urban areas are important for meteorology and energy demand planning. They are indispensable to study the urban heat island effect and the adverse effects of high temperatures on ...

Overeem, A.

498

Approximate translation : media, narrative, and experience in urban design  

E-Print Network [OSTI]

Approximate translation is developed as a design process through which the place-embedded history of an urban environment can be understood, allowing for better design and intervention in that urban environment. Generally, ...

Crisman, Jonathan

2013-01-01T23:59:59.000Z

499

Insects in urban brownfields Analyses of species occurrences,  

E-Print Network [OSTI]

Insects in urban brownfields Analyses of species occurrences, community composition, and trait brownfields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.4 Habitat models forces for insects in urban brownfields 41 4.1 Introduction

Kleyer, Michael

500

Exploding the edge : inversions into the urban landscape  

E-Print Network [OSTI]

This thesis explores the relationship between building and green space in a dense urban environment in order to create a humane contemplative experience of individual and collective memory. The urban environment has the ...

Chia, Katherine Kai-sun

1991-01-01T23:59:59.000Z