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1

Towards a Sustainable Urban Metabolism: Algae-to-Energy Systems as Clean Cycles in the Urban Water Chain.  

E-Print Network (OSTI)

??This study includes an analysis of the urban water chain in Germany (water supply, wastewater and sludge management); followed by an analysis of the integration… (more)

Menger-Krug, Eve

2013-01-01T23:59:59.000Z

2

Water Cycle Pilot Study  

NLE Websites -- All DOE Office Websites (Extended Search)

1 Water Cycle Pilot Study To learn more about Earth's water cycle, the U.S. Department of Energy (DOE) has established a multi-laboratory science team representing five DOE...

3

Reading Comprehension - The Water Cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

The Water Cycle The Water Cycle Evaporation, Condensation and Precipitation The _________ moon sun water clouds evaporates _________ fish oceans rain water from lakes and oceans. As the air rises, it cools. The water vapor condenses into tiny droplets of _________ evaporation clouds water sunshine . The droplets crowd together and form a _________ cloud lake storm precipitation . Wind blows the _________ rain sun droplet cloud towards the land. The tiny droplets join together and fall as precipitation to the _________ river lake ground cloud . The water soaks into the ground and collects in _________ rivers and lakes oceans and clouds jars and cups plants and animals . The _________ storm cycle river house that never ends has started again! A water cycle diagram. Use the diagram to identify the different parts of the water cycle:

4

A Changing Framework for Urban Water Systems  

Science Journals Connector (OSTI)

? Department of Civil & Environmental Engineering, Colorado School of Mines, Golden, Colorado 80401, United States ... Although many challenges remain with regard to environmental impacts, desalination is now considered a viable option for urban water supply, particularly in situations where either climate change or short-term events (e.g., catastrophic floods) compromise water quantity and quality. ... Stormwater harvesting couples flood control and urban runoff management with urban water supply by capturing runoff and recharging it to drinking water aquifers or by reusing stormwater for nonpotable uses. ...

Janet G. Hering; T. David Waite; Richard G. Luthy; Jörg E. Drewes; David L. Sedlak

2013-05-08T23:59:59.000Z

5

Water resources and the urban environment--98  

SciTech Connect

This report contains all the papers presented at the meeting. There are 25 sessions and one poster session in the document. The Sessions are: (1) Landfill gas/groundwater interactions; (2) Urban solids management; (3) Local issues; (4) Surface water quality studies 1; (5) Reductive treatment of hazardous wastes with zero-valent iron; (6) Water reuse 1; (7) Biosolids management; (8) GIS information systems 1; (9) Drinking water distribution; (10) Anaerobic treatment; (11) Water reuse 2; (12) Municipal wastewater treatment technology; (13) GIS information systems 2; (14) Drinking water treatment 1; (15) Risk-based site remediation; (16) Small urban watersheds; (17) Disinfection; (18) Air pollution control and risk assessment; (19) Drinking water treatment 2; (20) Biological wastewater treatment; (21) Wastewater treatment; (22) Decentralized small-scale alternative wastewater management systems; (23) General environmental issues; (24) Drinking water treatment 3; and (25) Groundwater remediation. Papers have been processed separately for inclusion on the database.

Wilson, T.E. [ed.

1998-07-01T23:59:59.000Z

6

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

7

Urban Water Conservation along the Rio Grande  

E-Print Network (OSTI)

Use by Cate- gories in New Mexico Counties, River Basins and Irrigated Acreage in 2000 and the NMOSE An- nual Report. 5,6 Data were derived from water supply or utility companies as opposed to city figures. These numbers may reflect some rural... 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...

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

2004-01-01T23:59:59.000Z

8

Drops of Energy Conserving Urban Water in California  

E-Print Network (OSTI)

Drops of Energy Conserving Urban Water in California to Reduce Greenhouse Gas Emissions May 2011 of diesel fuel annually. The greenhouse gas emissions associated with water- related energy consumption;1Berkeley Law \\ UCLA Law Drops of Energy: Conserving Urban Water in California to Reduce Greenhouse Gas

Kammen, Daniel M.

9

Managing a Scarce Resource; DSM in Urban Water Governance.  

E-Print Network (OSTI)

??Meeting public water supply needs efficiently and sustainably in a rapidly urbanizing world is becoming an immense challenge to governments and utilities. Experience has shown… (more)

Berhe Giday, Kahsay

2006-01-01T23:59:59.000Z

10

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

SciTech Connect

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

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

12

Urban water supply planning and management in Nigeria  

Science Journals Connector (OSTI)

The gap between water need and supply has widened steadily in Nigeria's urban centres despite continuous efforts made to develop the nation's vast surface and groundwater resources. Less than 0.5% of the total...

L. Oyebande Dr.

1978-01-01T23:59:59.000Z

13

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

E-Print Network (OSTI)

A novel integrated concept of urban water management in a megalopolis from Latin America (São Paulo@usp.br) Abstract Urban water management is a challenge for developing countries because population increase; management; in situ treatment; urban areas; water quality. INTRODUCTION Urban water management is a challenge

Paris-Sud XI, Université de

14

NFWF Five Star & Urban Waters Restoration Program  

Energy.gov (U.S. Department of Energy (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.

15

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

16

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

17

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

18

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

19

Impact of urban traffic and climate change on water quality from road runoff.  

E-Print Network (OSTI)

??Urban traffic and climate change are two phenomena that have the potential to degrade urban water quality by influencing the build-up and wash-off of pollutants,… (more)

Mahbub, S. M. Parvez Bin

2011-01-01T23:59:59.000Z

20

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

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

ARM - Field Campaign - Water Cycle Pilot Study Intensive Observations  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsWater Cycle Pilot Study Intensive Observations govCampaignsWater Cycle Pilot Study Intensive Observations Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Water Cycle Pilot Study Intensive Observations 2002.04.01 - 2002.06.30 Lead Scientist : Marvin Wesely For data sets, see below. Description The U.S. DOE Water Cycle Pilot Study (WCPS) is a 3-year feasibility investigation focused on accurately evaluating the water cycle components and using stable isotopes as an effective tool in doing so. The study area is primarily the Whitewater subbasin in the Walnut River Watershed in southeastern Kansas. Two intensive observations periods are planned, this first one in April to June 2002 and a second currently scheduled for December 2002 to February 2003. Observations will be made of precipitation

22

Global Hydrological Cycles and World Water Resources  

Science Journals Connector (OSTI)

...metric ton of water per day per person in developing...tanker or other high energy–consuming means...other hand, water demand for food and industrial production...Water demand per person will most...Domestic per capita water use has increased...domestic product (GDP) growth, but...

Taikan Oki; Shinjiro Kanae

2006-08-25T23:59:59.000Z

23

Life Cycle Assessment of Three Water Scenarios  

E-Print Network (OSTI)

Use/ Reuse/ Maintenance Recycling Material and Energy Inputs Releases to the Environment 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.

24

Life Cycle Inventory of Biodiesel and Petroleum Diesel for Use in an Urban Bus  

NLE Websites -- All DOE Office Websites (Extended Search)

SR-580-24089 UC Category 1503 SR-580-24089 UC Category 1503 Life Cycle Inventory of Biodiesel and Petroleum Diesel for Use in an Urban Bus A Joint Study Sponsored by: U.S. Department of Agriculture and U.S. Department of Energy Final Report May 1998 NOTICE NOTICE: This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees,

25

Improving water and energy metabolism efficiency in urban water supply system through pressure stabilization by optimal operation on water tanks  

Science Journals Connector (OSTI)

Abstract Water supply consumes 2–3% of the worldwide energy. Water distribution system, which accounts for 70% electricity consumption of water supply, is a key link of urban water and energy metabolism. The operation of the secondary water supply system (SWSS) has great influence on the pressure stability and associated energy consumption as well as water loss of urban water distribution. This research developed an approach based on the hydraulic solver EPANET and genetic algorithm (GA) to investigate the impacts of two different operation strategies, user demand regulation (UDR) and tank level regulation (TLR) of SWSS, on pressure stability and energy efficiency. The results showed that the strategy of TLR could reduce the pressure fluctuations and increase the minimal pressure of the distribution network under the same supply–demand condition. Reduction of the pressure fluctuations is beneficial to the reliability and leakage control of pipe networks. Increase of the minimal pressure indicates that less energy is lost during the distribution. Therefore, the TLR strategy of SWSS can support to initiatively lower the water pressure of the pumps at the water plant outlet, thus improves the water and energy metabolism efficiency in urban water supply system.

Qiang Xu; Qiuwen Chen; Siliang Qi; Desuo Cai

2014-01-01T23:59:59.000Z

26

LifeCycle Water Consumption of  

E-Print Network (OSTI)

of agricultural consumption · Analytical tools development #12;· 1/3 of Less Developed Countries predicted to have insufficient water resources to meet their needs by 2025 · Agriculture = 70% of withdrawn water ­ LCAbased policies ­ CA LCFS 3. But a good GHG LCA does not a responsible product make "Sustainability

Keller, Arturo A.

27

Reducing greenhouse gas emissions with urban agriculture: A Life Cycle Assessment perspective  

Science Journals Connector (OSTI)

The production and supply of food currently accounts for 20–30% of greenhouse gas (GHG) emissions in the UK and the government and nongovernmental organisations are seeking to reduce these environmental burdens. Local authorities all over UK establish community farms with the aim to produce more sustainable food for citizens. This study used environmental Life Cycle Assessment (LCA) to quantify the potential savings of food-related GHG emissions that may be achieved with the establishment of an urban community farm, based on a case study recently found in the London Borough of Sutton. The work identified elements of the farm design that require the greatest attention to maximise these savings. The greatest reductions can be achieved by selecting the right crops: (i) providing the highest yields in local conditions and (ii) usually produced in energy-intensive greenhouses or air-freighted to UK from outside Europe. Implications from further development of the farm on the local, unused land were examined, taking into account market requirements. This showed that land used on an urban fringe for food production could potentially reduce greenhouse gas emissions in Sutton by up to 34 t CO2e ha?1 a?1. Although the percentage of this reduction in total diet emissions is relatively low, the result exceeds carbon sequestration rates for the conventional urban green space projects, such as parks and forests.

Michal Kulak; Anil Graves; Julia Chatterton

2013-01-01T23:59:59.000Z

28

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

29

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

30

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

31

Spatio-temporal analysis of urbanization and land and water resources efficiency of oasis cities in Tarim River Basin  

Science Journals Connector (OSTI)

This paper examines the spatial pattern of land and water resources as well as urbanization and their ... so, we extract the data associated with efficiency of land and water resources and urbanization for the ye...

Yu Yang; Yi Liu

2014-06-01T23:59:59.000Z

32

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

33

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

E-Print Network (OSTI)

Introduction Water supply, wastewater, and stormwater systems are explored in this chapter, first individually are in reuse of wastewater and stormwater to reduce the required net import of water for water supply water: Groundwater recharge. Recycling of water. 4. Pollution abatement in urban areas: Conveyance

Pitt, Robert E.

34

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

35

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

36

Solar High Temperature Water-Splitting Cycle with Quantum Boost  

SciTech Connect

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

37

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.

38

Life Cycle Assessment for Sustainable Metropolitan Water Systems Planning  

Science Journals Connector (OSTI)

Life Cycle Assessment (LCA) is useful as an information tool for the examination of alternative future scenarios for strategic planning. ... Water systems supply additional functions includ ing the following:? (1) nutrient recovery ? the treatment and land application of biosolids brings back the nutrients to the natural cycle in agriculture, horticulture, and forest systems, which can prevent the need for chemical fertilizers and thus avoid their production; (2) energy recovery ? which can include the generation of electricity or the cogeneration of thermal energy and electricity from biogas at sewage treat ment plants (STPs) or biosolids combustion off-site [This generation activity replaces the production of electrical and thermal energy from other energy sources.]; ...

Sven Lundie; Gregory M. Peters; Paul C. Beavis

2004-05-21T23:59:59.000Z

39

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.

40

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

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

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

E-Print Network (OSTI)

of urban water management Marie Tsanga Tabi, U.M.R Cemagref-ENGEES "Management of Public Services", 1 quai performed in the field of urban water management, we report the conflict occurring between a new management demonstrate the efficiency of the management of public water services. The first national standard (Standard

Paris-Sud XI, Université de

42

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

43

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

44

Supercritical Water Reactor Cycle for Medium Power Applications  

SciTech Connect

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

45

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

SciTech Connect

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

46

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

47

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

SciTech Connect

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

48

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

E-Print Network (OSTI)

. Interviewed by Greg Felter [in person] Ampthill, UK, 5 June. Cross, P. and Morel, A. n.d.. Pro-Poor Strategies for Urban Water Supply and Sanitation Services Delivery in Africa. [report] Nairobi: The World Bank, pp. 1-8 Dimanin, P. 2012. Exploring... Corporation (NWSC) (Alabaster, 2013). 1.1. Water Access Goals Improving Water, Sanitation and Hygiene (WASH) facilities is a critical goal of the UN, which created the target to halve the overall proportion of people without sustainable access to safe...

Felter, Greg

2014-07-09T23:59:59.000Z

49

Climate Change Assessment for Urban Water Resource Availability  

E-Print Network (OSTI)

. The objective of this study is to develop a methodology to investigate the impacts of climate change on water resources. This is accomplished through coupling General Circulation Models (GCMs) with a hydrologic model and simulating hydrologic runoff...

Martinez, Ramiro

2011-08-08T23:59:59.000Z

50

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

51

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.

52

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

53

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

SciTech Connect

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

54

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

E-Print Network (OSTI)

NEWSNEWS Vol. 16, No. 2 May 2006Global Energy and Water Cycle Experiment World Climate Research by the exchanges of energy and water. Although some statistics of these varia- tions may be static, the energy Programme (A Programme of WMO, ICSU and IOC) GEWEX ADDRESSES WATER AND ENERGY BUDGETS USING SATELLITES

55

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

56

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

57

Water Loss Control Using Pressure Management: Life-cycle Energy and Air Emission Effects  

Science Journals Connector (OSTI)

Pressure management is one cost-effective and efficient strategy for controlling water distribution losses. This paper evaluates the life-cycle energy use and emissions for pressure management zones in Philadelphia, Pennsylvania, and Halifax, Nova Scotia. ...

Jennifer R. Stokes; Arpad Horvath; Reinhard Sturm

2013-07-19T23:59:59.000Z

58

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.

59

Life cycle water use for electricity generation: a review and harmonization of literature estimates  

Science Journals Connector (OSTI)

This article provides consolidated estimates of water withdrawal and water consumption for the full life cycle of selected electricity generating technologies, which includes component manufacturing, fuel acquisition, processing, and transport, and power plant operation and decommissioning. Estimates were gathered through a broad search of publicly available sources, screened for quality and relevance, and harmonized for methodological differences. Published estimates vary substantially, due in part to differences in production pathways, in defined boundaries, and in performance parameters. Despite limitations to available data, we find that: water used for cooling of thermoelectric power plants dominates the life cycle water use in most cases; the coal, natural gas, and nuclear fuel cycles require substantial water per megawatt-hour in most cases; and, a substantial proportion of life cycle water use per megawatt-hour is required for the manufacturing and construction of concentrating solar, geothermal, photovoltaic, and wind power facilities. On the basis of the best available evidence for the evaluated technologies, total life cycle water use appears lowest for electricity generated by photovoltaics and wind, and highest for thermoelectric generation technologies. This report provides the foundation for conducting water use impact assessments of the power sector while also identifying gaps in data that could guide future research.

J Meldrum; S Nettles-Anderson; G Heath; J Macknick

2013-01-01T23:59:59.000Z

60

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

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

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

E-Print Network (OSTI)

et al. 2008). Eutrophication of surface water is considered one of the leading causes of dead zones in estuaries, where the high nutrient concentrations increase algal primary productivity and result in a depletion of oxygen when algal biomass... require N and consume it in the form of plant and animal products. Human alteration of the landscape by agriculture has increased the delivery of N to surface waters (Boyer et al. 2002) both by increases in coverage of N-fixing crops (legumes and rice...

Steele, Meredith Kate

2012-10-19T23:59:59.000Z

62

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

63

Thermodynamic modelling of three-stage combined cycle power systems utilising ammonia-water mixture as a working fluid in bottoming cycle  

Science Journals Connector (OSTI)

In this study, two three-stage combined power cycles with ammonia-water mixture in bottoming cycle are introduced; one with variable ammonia fraction and the other with constant ammonia fraction. Energy and exergy analyses are carried out and optimal parameters of the proposed cycles are compared with the conventional power cycles. The second law efficiency of three-stage cycles with variable and constant ammonia fraction are 4.71% and 5.15% higher than steam-gas combined power cycle, respectively. Exergy flow diagram for each cycle is presented and exergy destruction of all components is investigated. Results quantitatively highlight the thermodynamic advantages of the proposed cycles in comparison with the conventional cycles. Three-stage cycle with constant ammonia fraction has the best performance in comparison with the others.

Amin Momeni; Hossein Shokouhmand

2014-01-01T23:59:59.000Z

64

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

65

Adapting to Less Water: Household Willingness to Pay for Decentralised Water Systems in Urban Australia  

Science Journals Connector (OSTI)

In South East Queensland (SEQ), extended periods of drought and unprecedented population growth have resulted in a water strategy reliant on permanent water conservation measures. As a result, there has been i...

Sorada Tapsuwan; Michael Burton; Aditi Mankad; David Tucker…

2014-03-01T23:59:59.000Z

66

Diurnal to annual variations in the atmospheric water cycle  

E-Print Network (OSTI)

energy follows a strongly semidiurnal behavior, driven by solar tidestide (Lindzen, 1967). Further analyses on these (and other water and energydry energy in the global reanalyses. The thermal tide leads

Ruane, Alexander C

2007-01-01T23:59:59.000Z

67

Ecological Modelling xxx (2005) xxxxxx Modelling carbon and water cycles in a beech forest  

E-Print Network (OSTI)

on simulated NEE. Finally 17 parameters, linked to photosynthesis, vegetative respiration and soil water are used to create a set of 17,000 simulations, where the values of the 17 key parameters are randomlyEcological Modelling xxx (2005) xxx­xxx Modelling carbon and water cycles in a beech forest Part I

Boyer, Edmond

68

Analysis of a commercial absorption-refrigeration water-ammonia (ARWA) cycle using Aspen Plus simulator  

Science Journals Connector (OSTI)

The Robur absorption-refrigeration-water-ammonia (ARWA) cycle is analyzed using Aspen Plus flowsheet simulator. The results are compared with experimental and some manufacturer data reported in the open literature. Among performance parameters analyzed ... Keywords: Aspen, COP, absorption, ammonia, refrigeration, simulation, water

N. A. Darwish; S. H. Al-Hashimi; A. S. Al-Mansoori

2008-08-01T23:59:59.000Z

69

Water-Use Efficiency of the Terrestrial Biosphere: A Model Analysis Focusing on Interactions between the Global Carbon and Water Cycles  

Science Journals Connector (OSTI)

Carbon and water cycles are intimately coupled in terrestrial ecosystems, and water-use efficiency (WUE; carbon gain at the expense of unit water loss) is one of the key parameters of ecohydrology and ecosystem management. In this study, the ...

Akihiko Ito; Motoko Inatomi

2012-04-01T23:59:59.000Z

70

Advanced Feed Water and Cooling Water Treatment at Combined Cycle Power Plant  

Science Journals Connector (OSTI)

Tokyo Gas Yokosuka Power Station is an IPP combined cycle power plant supplied by Fuji Electric Systems...

Ryo Takeishi; Kunihiko Hamada; Ichiro Myogan…

2007-01-01T23:59:59.000Z

71

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 to clean water in Bondo township. 2. To describe what urban residents perceive as threats to households, during June 2011 to examine how attitudes and perceptions of urban residents on water sources, threats

Hall, Sharon J.

72

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

73

A planning-oriented sustainability assessment framework for peri-urban water management in developing countries  

Science Journals Connector (OSTI)

Abstract DPSIR and the three-pillar model are well-established frameworks for sustainability assessment. This paper proposes a planning-oriented sustainability assessment framework (POSAF). It is informed by those frameworks but differs insofar as it puts more emphasis on a constructivist conception which recognises that sustainability needs to be defined anew for each planning problem. In finding such a consensus definition, POSAF uses participatory scenario analysis and participatory planning, technical feasibility study, participatory assessment, analysis of trade-offs and social networks in an unusual combination and for goals that differ from the original conceptions of these methods. POSAF was applied in a peri-urban area of Mexico City for the design of improved water service provision, integrating solid waste management. It supported consensus amongst users about the importance of environmental issues, informed planners about the values of stakeholders and users, detected local differences, and identified possible conflicts at an early stage of decision-making.

Markus Starkl; Norbert Brunner; Eduardo López; José Luis Martínez-Ruiz

2013-01-01T23:59:59.000Z

74

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

75

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

SciTech Connect

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

76

Life-Cycle Water and Greenhouse Gas Implications of Alternative Fuel  

NLE Websites -- All DOE Office Websites (Extended Search)

Life-Cycle Water and Greenhouse Gas Implications of Alternative Fuel Life-Cycle Water and Greenhouse Gas Implications of Alternative Fuel Production Speaker(s): Corinne Scown Date: January 31, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Michael Sohn If the goal of science is to understand the structure and behavior of the physical and natural world, and the goal of engineering is to design, build, and manage systems that serve society's needs, then the study of civil infrastructure systems acts as a link between the two. Understanding the reliance of engineered systems on constrained natural resources, as well as their impact on human well-being and the environment, is key to building and maintaining infrastructure that is sustainable in the broader sense. This talk will explore the important role of life-cycle assessment and optimization in assessing such questions as: a.)

77

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

78

"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

79

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)

. Keywords: rainwater harvesting; source control; BMP; runoff; rainfall-runoff analysis; sewer overflows 11 This article has been published in: Urban Water Journal, Vol. 9(1), 2012 Rainwater harvesting). * corresponding author : guido.petrucci@leesu.enpc.fr On a 23 ha urban watershed, 10 km East of Paris, rainwater

Paris-Sud XI, Université de

80

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.


81

The energy and water nexus in Chinese electricity production: A hybrid life cycle analysis  

Science Journals Connector (OSTI)

Abstract Between 2000 and 2010, China?s electricity production had increased threefold and accounted for 50% of domestic and 12% of global CO2 emissions in 2010. Substantial changes in the electricity fuel mix are urgently required to meet China?s carbon intensity target of reducing CO2 emissions by 40–45% by 2020. Moreover, electricity production is the second largest consumer of water in China, but water requirements vary significantly between different electricity generation technologies. By integrating process-based life-cycle analysis (LCA) and input–output analysis (IOA) and through tracking national supply chains, we have provided a detailed account of total life-cycle carbon emissions (g/kWh) and water consumption (l/kWh) for eight electricity generation technologies – (pulverized) coal, gas, oil, hydro, nuclear, wind, solar photovoltaic, and biomass. We have demonstrated that a shift to low carbon renewable electricity generation technologies, i.e. wind, could potentially save more than 79% of total life-cycle CO2 emissions and more than 50% water consumption per kWh electricity generation compared to the current fuel mix and technology for electricity generation. If the projected wind farms are built by 2020, Inner Mongolia, one of the water scarce northern provinces, would annually save 179 MT CO2 (i.e. 44% of Inner Mongolia?s total CO2 emissions in 2008) and 418 million m3 (Mm3) water (18% of its industrial water use in 2008) compared with the same amount of electricity produced from coal.

Kuishuang Feng; Klaus Hubacek; Yim Ling Siu; Xin Li

2014-01-01T23:59:59.000Z

82

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

SciTech Connect

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

83

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

SciTech Connect

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

84

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

85

Simulating and Optimizing Storm Water Management Strategies in an Urban Watershed  

E-Print Network (OSTI)

. My proposed research will focus on simulating the Low Impact Development (LID) techniques like permeable pavements and rainwater harvesting on an urbanized watershed using a curve number approach to quantify the hydrologic performance...

Damodaram, Chandana

2011-02-22T23:59:59.000Z

86

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

SciTech Connect

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

87

Urban Sustainability Incentives for Residential Water Conservation: Adoption of Multiple High Efficiency Appliances  

Science Journals Connector (OSTI)

Effects of multiple types of water use efficiency appliances on long term water savings and water use trend shifts were analyzed. The study ... in the study group experienced continuous and significant water savi...

Mengshan Lee; Berrin Tansel; Maribel Balbin

2013-05-01T23:59:59.000Z

88

Life cycle study of coal-based dimethyl ether as vehicle fuel for urban bus in China  

Science Journals Connector (OSTI)

With life cycle assessment (LCA) methodology, a life cycle model of coal-based dimethyl ether (CBDME) as a vehicle fuel is established for China. Its life cycle from well to wheel are divided into three phases. They are feedstock extraction, fuel production and fuel consumption in vehicle. The primary energy consumption (PEC) and global warming potential (GWP) of CBDME pathway are analyzed and compared with coal-based diesel (CBD) as a latent rival to replace conventional petroleum-based diesel (CPBD). This study demonstrates that the LCA methodology is very suitable and effective for the choice of vehicle fuels. One result is that the greenhouse gases (GHGs) emission of coal-based vehicle fuel pathways is usually concentrated on fuel production stage. The percentages of CBDME and CBD pathways both exceed 60%. The application of carbon capture and storage (CCS) is helpful for coal-based vehicle fuel pathways to improve their global warming effect dramatically. Compared with CBD pathway, CBDME pathway consumes less PEC and emits less \\{GHGs\\} emission as well. Even though the CCS and CH4-fired generation are used, the advantages of CBDME are still kept. For saving petroleum energy and reducing global warming effect, CBDME has greater potential than CBD to substitute CPBD under current fuel synthesis technologies. If the hurdles such as the maturity of engine and vehicle technologies, corresponding regulations and standards and infrastructures are reliably solved, CBDME will have better prospect in China.

Liang Zhang; Zhen Huang

2007-01-01T23:59:59.000Z

89

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

E-Print Network (OSTI)

challenge the continued well-being of society. Due to increasing environmental and financial constraints, water management paradigms have shifted from supply augmentation to demand management, and water conservation initiatives may efficiently decrease water...

Giacomoni, Marcio

2012-10-19T23:59:59.000Z

90

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

91

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

SciTech Connect

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

92

Solar-assisted auto-cascade heat pump cycle with zeotropic mixture R32/R290 for small water heaters  

Science Journals Connector (OSTI)

Abstract In this study, a novel solar-assisted auto-cascade heat pump cycle (SAHPC) operating with the zeotropic mixture of R32/R290 for small water heaters is proposed. In the SAHPC system, a cascade heat exchanger (CHEX) associated with a phase separator is used to achieve auto cascade cycle and enhance the overall system performance. The performances of the SAHPC are evaluated by using the developed mathematical model, and then compared with the conventional air-sourced heat pump cycle (CAHPC). Simulation results show the SAHPC has 4.23–9.85% and 4.37–9.68% improvements in COP and volumetric heating capacity compared with those of the CAHPC, respectively, under the same operating conditions. However, the improvement of performance of this novel cycle largely depends on the absorbing heat ratio and the zeotropic composition. It is expected that this new cycle will be beneficial to developing dual-source coupled heat pump applications.

Xiaolong Lv; Gang Yan; Jianlin Yu

2015-01-01T23:59:59.000Z

93

Investigation of thermal stability of fluorinol-85 and 2-methylpyridine/water as Rankine Cycle Power Systems working fluids  

SciTech Connect

Results of the experimental investigation to date, indicate that Fluorinol-85 could be utilized in Organic Rankine Cycle Power Systems (ORCPS) to a maximum cycle temperature of 550/sup 0/F without any discernable decomposition over an extended period of time. However, at 575/sup 0/F, Fluorinol-85 could possibly decompose between 1 and 3% per year depending upon system design considerations. 2-methyl-pyridine/water could have possibly less than a 2% annual decomposition rate at 600/sup 0/F maximum cycle temperature.

Jain, M.L.; Demirgian, J.; Hillis, D.L.

1984-01-01T23:59:59.000Z

94

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.

95

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

96

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

97

A Parametric Study of the DUPIC Fuel Cycle to Reflect Pressurized Water Reactor Fuel Management Strategy  

SciTech Connect

For both pressurized water reactor (PWR) and Canada deuterium uranium (CANDU) tandem analysis, the Direct Use of spent PWR fuel In CANDU reactor (DUPIC) fuel cycle in a CANDU 6 reactor is studied using the DRAGON/DONJON chain of codes with the ENDF/B-V and ENDF/B-VI libraries. The reference feed material is a 17 x 17 French standard 900-MW(electric) PWR fuel. The PWR spent-fuel composition is obtained from two-dimensional DRAGON assembly transport and depletion calculations. After a number of years of cooling, this defines the initial fuel nuclide field in the CANDU unit cell calculations in DRAGON, where it is further depleted with the same neutron group structure. The resulting macroscopic cross sections are condensed and tabulated to be used in a full-core model of a CANDU 6 reactor to find an optimized channel fueling rate distribution on a time-average basis. Assuming equilibrium refueling conditions and a particular refueling sequence, instantaneous full-core diffusion calculations are finally performed with the DONJON code, from which both the channel power peaking factors and local parameter effects are estimated. A generic study of the DUPIC fuel cycle is carried out using the linear reactivity model for initial enrichments ranging from 3.2 to 4.5 wt% in a PWR. Because of the uneven power histories of the spent PWR assemblies, the spent PWR fuel composition is expected to differ from one assembly to the next. Uneven mixing of the powder during DUPIC fuel fabrication may lead to uncertainties in the composition of the fuel bundle and larger peaking factors in CANDU. A mixing method for reducing composition uncertainties is discussed.

Rozon, Daniel; Shen Wei [Institut de Genie Nucleaire (Canada)

2001-05-15T23:59:59.000Z

98

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

99

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

E-Print Network (OSTI)

importation, or wastewater recycling. Identifying regionsWastewater Recycling Life-Cycle Inputs for Wastewater Recycling (Data Source: (

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

100

Issues of water supply and contemporary urban society: the case of Greater Amman, Jordan  

Science Journals Connector (OSTI)

...food! On the day that water is delivered, balconies...are actively irrigated, cars are washed and domestic...ages, access to, and power over, water as a daily resource remains...and practices of social power within the community as...

2010-01-01T23:59:59.000Z

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

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

E-Print Network (OSTI)

Livestock Fuel for Water Pumping Motor Efficiency GW EnergyRequired for Water Pumps Using Electric Motors (AdaptedGasoline motors typically used for water pumps are

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

102

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

SciTech Connect

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

103

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

E-Print Network (OSTI)

, canal waters exerted BOD values of 2-10 mg/1 with no problems asso- 5 ciated with toxic substances. Evaluation of domestic wastewater data from centralized treatment facilities indicates that these waste- water streams are not major sources... of pollution loading. Runoff samples were collected from thr ee rainfall-runoff events and were found to contain significan amounts o+ carbonaceous material. Also, the possibility of canal sediment resuspension by point dis- charge of runoff...

Messenger, Allen Lester

2012-06-07T23:59:59.000Z

104

Research on Optimal Operation Method of Large Scale Urban Water Distribution System  

Science Journals Connector (OSTI)

Abstract In consideration of using fewer decision variables in building least cost pumping operation optimal, the two-phase optimal method is used as the frame. By abstracting pump stations into high level reservoirs, the water distribution system hydraulic model can be modified into a modality, which can be used in first optimal phase of two-phase optimal method. And by building on feasible pump combination database, a new optimal method in the second optimal phase will be proposed. And the proposed new method in the second optimal phase will be embedded into the first optimal phase, so that the problem of results discordant in different phases of two-phase optimal method will be solved. By introducing new concept and improving present optimal method, a more practical optimal operation method of water distribution system (WDS) will be established. By applying to a large scale water distribution system, the practicability of proposed method has been evaluated.

X. Jin; W. Wu

2014-01-01T23:59:59.000Z

105

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

E-Print Network (OSTI)

of Freshwater Consumption in LCA. Environmental Science &of Freshwater Consumption in LCA. Environmental Science &Cycle Assessment (EIO-LCA) US 2002 (428) model. Carnegie

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

106

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.energy and tree planting--are being used to evaluate both the effects on total outdoor water usage as well California Energy Commission PIER Program, Environmental Area Phone: 9163272201 Email: SPittigl@energy

107

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

108

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

109

Life cycle analysis of distributed concentrating solar combined heat and power: economics, global warming potential and water  

Science Journals Connector (OSTI)

We report on life cycle assessment (LCA) of the economics, global warming potential and water (both for desalination and water use in operation) for a distributed concentrating solar combined heat and power (DCS-CHP) system. Detailed simulation of system performance across 1020 sites in the US combined with a sensible cost allocation scheme informs this LCA. We forecast a levelized cost of $0.25 kWh?1 electricity and $0.03 kWh?1 thermal, for a system with a life cycle global warming potential of ~80 gCO2eq kWh?1 of electricity and ~10 gCO2eq kWh?1 thermal, sited in Oakland, California. On the basis of the economics shown for air cooling, and the fact that any combined heat and power system reduces the need for cooling while at the same time boosting the overall solar efficiency of the system, DCS-CHP compares favorably to other electric power generation systems in terms of minimization of water use in the maintenance and operation of the plant. The outlook for water desalination coupled with distributed concentrating solar combined heat and power is less favorable. At a projected cost of $1.40 m?3, water desalination with DCS-CHP would be economical and practical only in areas where water is very scarce or moderately expensive, primarily available through the informal sector, and where contaminated or salt water is easily available as feed-water. It is also interesting to note that $0.40–$1.90 m?3 is the range of water prices in the developed world, so DCS-CHP desalination systems could also be an economical solution there under some conditions.

Zack Norwood; Daniel Kammen

2012-01-01T23:59:59.000Z

110

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

111

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

112

Organic Rankine-Cycle Power Systems Working Fluids Study: Topical report No. 3, 2-methylpyridine/water  

SciTech Connect

A mixture of 35 mole percent (mol %) 2-methylpyridine and 65 mol % water was tested at 575, 625, and 675/degree/F in a dynamic loop. Samples of the degraded fluid were chemically analyzed to determine the identities of major degradation products and the quantity of degradation. Computed degradation rates were found to be higher than those for Fluorinol 85 or toluene. For this reason (and other reasons, related to fluid handling), other fluids are recommended as the first choice for service in organic Rankine-cycle systems in preference to 2-methylpyridine/water. 7 refs., 39 figs., 39 tabs.

Cole, R.L.; Demirgian, J.C.; Allen, J.W.

1987-09-01T23:59:59.000Z

113

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.

114

Working fluid selection based on critical temperature and water temperature in organic Rankine cycle  

Science Journals Connector (OSTI)

This paper examines the thermal performance of working fluids in the entire evaporation temperature region up to near-critical temperature of working fluids in the organic Rankine cycle (ORC). The variation and t...

XinGuo Li; WenJing Zhao; DieDie Lin; Qiang Zhu

2014-11-01T23:59:59.000Z

115

Slag-washing water of blast furnace power station with supercritical organic Rankine cycle  

Science Journals Connector (OSTI)

Organic Rankine cycle (ORC) power plant operating with supercritical ... of a supercritical power plant. Two typical organic fluids with sufficiently low critical parameters were ... study the efficiency of the s...

Song Xiao ??; Shu-ying Wu ???; Dong-sheng Zheng ???

2013-03-01T23:59:59.000Z

116

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

E-Print Network (OSTI)

patents, notably in water purification technologies (Foley &of water technology: water purification, reclamation andthe heart of the water purification process and the firms

Pilip-Florea, Shadrach Jay

2012-01-01T23:59:59.000Z

117

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

118

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

119

Life Cycle Water Consumption and Wastewater Generation Impacts of a Marcellus Shale Gas Well  

Science Journals Connector (OSTI)

The relative importance of water consumption was analyzed by integrating the method into the Eco-indicator-99 LCIA method. ...

Mohan Jiang; Chris T. Hendrickson; Jeanne M. VanBriesen

2013-12-31T23:59:59.000Z

120

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

SciTech Connect

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

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

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

122

Support for Cost Analyses on Solar-Driven High Temperature Thermochemical Water-Splitting Cycles  

Energy.gov (U.S. Department of Energy (DOE))

This report summarizes the application of chemical process flowsheet analyses and cash flow analyses using DOE's H2A methodology to develop near-term (2015) and longer-term (2025) cost projections for eight solar thermochemical hydrogen production reaction cycles.

123

A review on solar thermal syngas production via redox pair-based water/carbon dioxide splitting thermochemical cycles  

Science Journals Connector (OSTI)

Abstract The high power density, ease of transportation and storage and many years of development of internal combustion engine technologies have put liquid hydrocarbon fuels at a privileged position in our energy mix. Therefore processes that use renewable energy sources to produce liquid hydrocarbon fuels from H2O and CO2 are of crucial importance. Concentrated Solar Power (CSP) can be employed as the only energy source for the renewable production of hydrogen from water either indirectly, e.g. by supplying the electricity for electrolysis, or directly by supplying the necessary heat for thermochemically producing hydrogen. Among the various thermochemical cycles tested so far for CSP-driven hydrogen production via water splitting (WS), those based on redox-pair oxide systems, are directly adaptable to carbon dioxide splitting (CDS) and/or combined CO2/H2O splitting for the production of CO or syngas, respectively. The acknowledgement of this fact has recently revived the interest of the scientific community on such technologies. The current article presents the development, evolution and current status of CSP-aided syngas production via such redox-pair-based thermochemical cycles. At first the various redox oxide material compositions tested for water/carbon dioxide splitting are presented and their redox chemistries are discussed. Then the selection of suitable solar reactors is addressed in conjunction with the boundary conditions imposed by the redox systems as well as the heat demands, technical peculiarities and requirements of the cycle steps. The various solar reactor concepts proposed and employed for such reactions and their current status of development are presented. Finally, topics where further work is needed for commercialization of the technology are identified and discussed.

Christos Agrafiotis; Martin Roeb; Christian Sattler

2015-01-01T23:59:59.000Z

124

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

E-Print Network (OSTI)

Acid Lime Ammonia Alpha-Amylase Glucoamylase Cooling waterEtOH) Glucoamylase & Alpha-Amylase (kg/MJ EtOH) Diammonium

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

125

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

E-Print Network (OSTI)

and Sustainability: U.S. Electricity Consumption for Water116 Table 38: Electricity Consumption/Generation at SWPattributional LCA of electricity consumption in the United

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

126

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

127

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

128

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

E-Print Network (OSTI)

as shale gas, but this pathway will not be discussed becauseuses water consumption for shale gas extraction as a proxy77). Natural gas can also be extracted from oil shale, known

Scown, Corinne Donahue

2010-01-01T23:59:59.000Z

129

Trace metal cycling in the surface water of the South China Sea ...  

Science Journals Connector (OSTI)

ABSTRACT: We deployed floating traps in the surface waters of the South China Sea on four occasions at depths of 30 m, 100 m, and 160 m from 2006 to 2007 ...

130

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

SciTech Connect

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

131

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

132

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

133

Discussion on the Water-Saving Technology of the Green Community  

E-Print Network (OSTI)

water utilization. Key words: green building; life cycle assessment (LCA); green community; non-traditional water resource; terms of reference (TOR) 1. INTRODUCTION Many countries in the world have been taking up with the green building... distribution asymmetry, drip and spray used in agriculture irrigation are introduced into urban. Drip irrigation is good at water-saving because water contacts directly with soil without sprayed in the air, especially using non-traditional water resource...

He, Q.; Gou, H.; Dai, Z.; Hao, Y.

2006-01-01T23:59:59.000Z

134

Life Cycle Water Consumption and Withdrawal Requirements of Ethanol from Corn Grain and Residues  

Science Journals Connector (OSTI)

As an example, estimates of water use efficiencies for individual systems in the Nile Basin in Egypt are around 30%, but the overall efficiency for the entire Nile system is estimated at 80%.(18) The concept is summarized by Perry et al.,(19) who indicate that “...'losses' at the scale of an individual field or an irrigation project are not necessarily 'losses' in the hydrological sense...”. ... All energy scenarios show a shift toward an increased percentage of renewable energy sources, including biomass. ...

Gouri Shankar Mishra; Sonia Yeh

2011-04-26T23:59:59.000Z

135

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

136

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

137

Integrated Gasification Combined Cycle Dynamic Model: H2S Absorption/Stripping, Water?Gas Shift Reactors, and CO2 Absorption/Stripping  

Science Journals Connector (OSTI)

Integrated Gasification Combined Cycle Dynamic Model: H2S Absorption/Stripping, Water?Gas Shift Reactors, and CO2 Absorption/Stripping ... Future chemical plants may be required to have much higher flexibility and agility than existing process facilities in order to be able to handle new hybrid combinations of power and chemical units. ...

Patrick J. Robinson; William L. Luyben

2010-04-26T23:59:59.000Z

138

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

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

139

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.

140

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.

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

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

142

Multiple Rankine topping cycles  

SciTech Connect

The efficiency of a Rankine cycle is primarily determined by the temperatures of heat addition and rejection. However, no working fluid has been identified which will operate in a Rankine cycle over an extremely wide temperature range. Multiple Rankine topping cycles offer a technique for achieving high thermal efficiencies in power plants by allowing the use of several working fluids. This paper gives a history of Rankine topping cycles, presents an analysis for the calculation of the overall efficiency of a three-module multiple Rankine cycle, and presents results from a case study for a sodium-mercury-water cycle.

McWhirter, J.D. [Argonne National Lab., Idaho Falls, ID (United States). Engineering Div.]|[Idaho State Univ., Pocatello, ID (United States). Coll. of Engineering

1995-07-01T23:59:59.000Z

143

Scale-4 analysis of pressurized water reactor critical configurations: Volume 5, North Anna Unit 1 Cycle 5  

SciTech Connect

ANSI/ANS 8.1 requires that calculational methods for away-from- reactor (AFR) criticality safety analyses be validated against experiment. This report summarizes part of the ongoing effort to benchmark AFR criticality analysis methods using selected critical configurations from commercial PWRs. Codes and data in the SCALE-4 code system were used. This volume documents the SCALE system analysis of one reactor critical configuration for North Anna Unit 1 Cycle 5. The KENO V.a criticality calculations for the North Anna 1 Cycle 5 beginning-of-cycle model yielded a value for k{sub eff} of 1. 0040{+-}0.0005.

Bowman, S.M. [Oak Ridge National Lab., TN (United States); Suto, T. [Power Reactor and Nuclear Fuel Development Corp., Tokyo (Japan)]|[Oak Ridge National Lab., TN (United States)

1996-10-01T23:59:59.000Z

144

Site Suitability Assessment for Irrigating Urban Landscapes with Water of Elevated Salinity in the Southwest. Consolidated Final Report. Part 1. Water Quality and Plant Tolerance  

E-Print Network (OSTI)

tolerance of various landscape plants, and the levels of salt accumulation in different types of soils. The main source of funding came from the Rio Grande Basin Initiative through the Texas Water Research Institute, matched by a local fund from El Paso...

Miyamoto, S.

145

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

SciTech Connect

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

146

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........................................................................................................................................... 4 BENEFICIAL USES OF RECYCLED WATER................................................................................................ 5 MOTIVATIONS FOR RECYCLED WATER USE

Lund, Jay R.

147

The study of potable water treatment process in Algeria (boudouaou station) -by the application of life cycle assessment (LCA)  

Science Journals Connector (OSTI)

In LCA studies, contributions by individuals to the environmental ... to double the volume of water used in agriculture to eradicate malnutrition in 2025 [23]. The fact remains that "the right to water is a palpa...

Messaoud-Boureghda Mohamed-Zine…

2013-12-01T23:59:59.000Z

148

Cold-Climate Solar Domestic Water Heating Systems: Life-Cycle Analyses and Opportunities for Cost Reduction  

SciTech Connect

Conference paper regarding research in potential cost-savings measures for cold-climate solar domestic water hearing systems.

Burch, J.; Salasovich, J.; Hillman, T.

2005-12-01T23:59:59.000Z

149

Carbon Cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

Carbon Cycle Carbon Cycle Latest Global Carbon Budget Estimates Including CDIAC Estimates Terrestrial Carbon Management Data Sets and Analyses Carbon Dioxide Emissions from Fossil-Fuel Consumption and Cement Manufacture, (2011) Annual Fossil-Fuel CO2 Emissions: Mass of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) Monthly Fossil-Fuel CO2 Emissions: Mass of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) Annual Fossil-Fuel CO2 Emissions: Global Stable Carbon Isotopic Signature (2012) Monthly Fossil-Fuel CO2 Emissions: Isomass (δ 13C) of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) AmeriFlux - Terrestrial Carbon Dioxide, Water Vapor, and Energy Balance Measurements Estimates of Monthly CO2 Emissions and Associated 13C/12C Values

150

Working fluid design for organic rankine cycle systems (ORC):.  

E-Print Network (OSTI)

??The Organic Rankine Cycle is an energy conversion cycle similar to the conventional Rankine cycle which runs on a working fluid other than water. The… (more)

Hattiangadi, A.

2013-01-01T23:59:59.000Z

151

Working Fluid Design for Organic Rankine Cycle (ORC) Systems:.  

E-Print Network (OSTI)

??The Organic Rankine Cycle is an energy conversion cycle similar to the conventional Rankine cycle which runs on a working fluid other than water. The… (more)

Hattiangadi, A.

2013-01-01T23:59:59.000Z

152

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

SciTech Connect

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

153

Organic Rankine-cycle power systems working fluids study: Topical report No. 1: Fluorinol 85. [85 mole % trofluoroethanol in water  

SciTech Connect

An investigation to experimentally determine the thermal stability limits and degradation rates of Fluorinol 85 as a function of maximum cycle temperatures was initiated in 1982. Following the design and construction of a dynamic test loop capable of simulating the thermodynamic conditions of possible prototypical organic Rankine-cycle (ORC) power systems, several test runs were completed. The Fluorinol 85 test loop was operated for about 3800 h, covering a temperature range of 525-600/sup 0/F. Both liquid and noncondensable vapor (gas) samples were drawn periodically and analyzed using capillary column gas chromatography, gas chromatography/mass spectrometry and mass spectrometry. Results indicate that Fluorinol 85 would not decompose significantly over an extended period of time, up to a maximum cycle temperature of 550/sup 0/F. However, 506-h data at 575/sup 0/F show initiation of significant degradation. The 770-h data at 600/sup 0/F, using a fresh charge of Fluorinol 85, indicate an annual degradation rate of more than 17.2%. The most significant degradation product observed is hydrofluoric acid, which could cause severe corrosion in an ORC system. Devices to remove the hydrofluoric acid and prevent extreme temperature excursions are necessary for any ORC system using Fluorinol 85 as a working fluid.

Jain, M.L.; Demirgian, J.C.; Cole, R.L.

1986-09-01T23:59:59.000Z

154

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

155

Role of Lignin in Reducing Life-Cycle Carbon Emissions, Water Use, and Cost for United States Cellulosic Biofuels  

Science Journals Connector (OSTI)

The grid electricity offset credits alone can reduce the life-cycle greenhouse gas (GHG) footprint of cellulosic ethanol by up to 20 g CO2e/MJ ethanol, in some cases resulting in a net negative GHG footprint. ... Case 2 represents a system in which the solids boiler and steam turbine from case 1 remain operational, but imported natural gas is used to operate an additional 65 MW gas turbine, resulting in a net power output of 50 MW. ... In each case, the capital costs for gas turbines are calculated on the basis of the gross power output rating. ...

Corinne D. Scown; Amit A. Gokhale; Paul A. Willems; Arpad Horvath; Thomas E. McKone

2014-07-02T23:59:59.000Z

156

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

157

Life Cycle Assessment of solar energy systems: Comparison of photovoltaic and water thermal heater at domestic scale  

Science Journals Connector (OSTI)

Abstract This study is concerned with the results of a Life Cycle Assessment comparison between photovoltaic – silicon based modules and thin film modules – and solar thermal systems, as technologies which are usually installed for partially covering household energy demand. Several studies focused on energy and environmental performances of photovoltaic and solar thermal collectors, however they have been always analysed separately. This study proposes the comparison of different systems to exploit the solar energy, producing different energy types. The comparison was done referring to one square meter of roof surface occupied by the equipment. The environmental burdens were calculated according to the indicators proposed by Eco-indicator'95 method. The results showed that the system based on thermal solar collector obtained the major number of more favourable indicators: eight out of ten, in the case of no-recycling of materials after dismantling phase, and six out of ten in the case of recycling of materials after dismantling phase. The thin film modules and solar thermal collector showed the lowest values of energy payback time and \\{CO2eq\\} payback time. Results clearly show that photovoltaic and solar thermal collector can effectively provide comparable environmental and energy benefits as regard to domestic scale installation.

E. Carnevale; L. Lombardi; L. Zanchi

2014-01-01T23:59:59.000Z

158

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

SciTech Connect

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

159

Parametric study of a silica gel-water adsorption refrigeration cycle -- The influence of thermal capacitance and heat exchanger UA-values on cooling capacity, power density, and COP  

SciTech Connect

The influence of heat exchanger UA-values (adsorber/desorber, evaporator, and condenser) is investigated for an adsorption chiller, with consideration given to the thermal capacitance of the adsorber/desorber by means of a lumped-parameter cycle simulation model developed by the authors and co-workers for the single-stage silica gel-water adsorption chiller. The closed-cycle-type chiller, for use in air conditioning, is driven by low-grade waste heat (85 C [185 F]) and cooled by water at 31 C (88 F) and operates on relatively short cycle times (420 seconds adsorption/desorption; 30 second adsorber/desorber sensible cooling and heating). The results showed cycle performance to be considerably affected by the thermal capacitance and UA-value of the adsorber/desorber, which is attributed to the severe sensible cooling/heating requirements resulting from batched cycle operation. The model is also sensitive to the evaporator UA-value--but to a lesser extent. The condenser UA-value is the least sensitive parameter due to the working pair adsorption behavior in the temperature range defined for desorption and condensation.

Boelman, E.C.; Saha, B.B.; Kashiwagi, Takao [Tokyo Univ. of Agriculture and Technology (Japan). Dept. of Mechanical Systems Engineering

1997-12-31T23:59:59.000Z

160

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

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

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.

162

Working fluid for Rankine cycle  

SciTech Connect

A Rankine cycle working fluid is disclosed containing a mixture of 2,2,3,3tetrafluoropropanol and water, which is low toxic, incombustible, nonexplosive, noncorrosive and stable, and also has a high critical temperature and forms azeotropic-like composition. It is suited for use in a rankine cycle using heat source of low temperature.

Aomi, H.; Enjo, N.

1980-11-11T23:59:59.000Z

163

Gap Filling and Quality Assessment of CO2 and Water Vapour Fluxes above an Urban Area with Radial Basis Function Neural Networks  

Science Journals Connector (OSTI)

Vertical turbulent fluxes of water vapour, carbon dioxide, and sensible heat were measured from 16 August to the 28 September 2006 near the city centre of Münster in north-west Germany. In comparison to result...

A. Schmidt; T. Wrzesinsky; O. Klemm

2008-03-01T23:59:59.000Z

164

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

NLE Websites -- All DOE Office Websites (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...

165

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

166

Johannesburg: the urban mediate.  

E-Print Network (OSTI)

??Object _ This thesis draws from the specific universality of Johannesburg to develop a theoretical framework that critically examines the opposing forces of its urbanization.… (more)

Lubell, Claire

2014-01-01T23:59:59.000Z

167

Alternative Fuels, Vehicle Technologies and Urban Logistics  

E-Print Network (OSTI)

Technologies and Urban Logistics Policy Note prepared byvehicle technologies, urban logistics, and VMT reduction. It

Witt, Maggie

2012-01-01T23:59:59.000Z

168

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

169

Structuring urban data  

Science Journals Connector (OSTI)

Geometric city modeling is an open problem without standard solutions. Within this problem, there appear several sub-problems that must be faced, like the accurate modeling of streets, buildings and other architectonic structures. One important source ... Keywords: GIS data, Urban data processing, Urban modeling

Oriol Pueyo; Gustavo Patow

2014-02-01T23:59:59.000Z

170

An introduction to the Kalina cycle  

SciTech Connect

This paper is intended as a primer on the Kalina cycle--a novel, efficient power cycle that uses an ammonia-water mixture as the working fluid. The reader needs no more than a basic understanding of conventional water based Rankine cycle power plants to comprehend the basic thermodynamics, principles and arrangements of Kalina cycle power plants presented in this paper. The Kalina cycle is principally a modified Rankine cycle. The transformation starts with an important process change to the Rankine cycle--changing the working fluid in the cycle from a pure component (typically water) to a mixture of ammonia and water. The modifications that complete the transformation of the cycle from Rankine to Kalina consist of proprietary system designs that specifically exploit the virtues of the ammonia-water working fluid. These special designs, either applied individually or integrated together in a number of different combinations, comprise a family of unique Kalina cycle systems. This is somewhat analogous to the Rankine cycle which, in fact, has many design options such as reheat, regenerative heating, supercritical pressure, dual pressure, etc. all of which can be applied in a number of different combinations in a particular plant.

Micak, H.A.

1996-12-31T23:59:59.000Z

171

CANDU fuel cycle flexibility  

SciTech Connect

High neutron economy, on-power refuelling, and a simple bundle design provide a high degree of flexibility that enables CANDU (CANada Deuterium Uranium; registered trademark) reactors to be fuelled with a wide variety of fuel types. Near-term applications include the use of slightly enriched uranium (SEU), and recovered uranium (RU) from reprocessed spent Light Water Reactor (LWR) fuel. Plutonium and other actinides arising from various sources, including spent LWR fuel, can be accommodated, and weapons-origin plutonium could be destroyed by burning in CANDU. In the DUPIC fuel cycle, a dry processing method would convert spent Pressurized Water Reactor (PWR) fuel to CANDU fuel. The thorium cycle remains of strategic interest in CANDU to ensure long-term resource availability, and would be of specific interest to those countries possessing large thorium reserves, but limited uranium resources.

Torgerson, D.F.; Boczar, P.G. [Chalk River Lab., Ontario (Canada); Dastur, A.R. [AECL CANDU, Mississauga, Ontario (Canada)

1994-12-31T23:59:59.000Z

172

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

173

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

174

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

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

175

Urban Enterprise Zone Program (New Jersey) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Urban Enterprise Zone Program (New Jersey) Urban Enterprise Zone Program (New Jersey) Urban Enterprise Zone Program (New Jersey) < Back Eligibility Commercial Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State New Jersey Program Type Enterprise Zone 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 and stimulates their growth by encouraging businesses to develop and create private sector jobs through public and private investment. Applicant businesses must be registered, located in one of the designated zones, be in tax compliance with the state, and certified by the Program.

176

The Sourcebook on Sustainable Urban Transport | Open Energy Information  

Open Energy Info (EERE)

Sourcebook on Sustainable Urban Transport Sourcebook on Sustainable Urban Transport Jump to: navigation, search Tool Summary Name: The Sourcebook on Sustainable Urban Transport Agency/Company /Organization: GIZ Focus Area: Other Topics: Policy Impacts Resource Type: Reports, Journal Articles, & Tools Website: www.sutp.org/index.php?option=com_content&task=view&id=426&Itemid=189& The Sourcebook addresses the key areas of a sustainable transport policy framework for developing cities. It consists of more than twenty modules addressing the following themes: institutional and policy orientation; land use planning and demand management; transit, walking, and cycling; vehicles and fuels; environment and health; and social issues in transport. References Retrieved from "http://en.openei.org/w/index.php?title=The_Sourcebook_on_Sustainable_Urban_Transport&oldid=515034"

177

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

178

Definition: Rankine cycle | Open Energy Information  

Open Energy Info (EERE)

Rankine cycle Rankine cycle Jump to: navigation, search Dictionary.png Rankine cycle Sometimes referred to as the steam cycle. Fuel is used to heat a liquid to produce a high pressure gas that expands and produces work, such as turning a turbine; when the turbine is connected to a generator, it produces electricity. Usually water is the liquid used in the Rankine cycle (to produce steam), but other liquids can also be used. The exhaust vapor expelled from the turbine condenses and the liquid is pumped back to the boiler to repeat the cycle.[1][2] View on Wikipedia Wikipedia Definition The Rankine cycle is a mathematical model that is used to predict the performance of steam engines. The Rankine cycle is an idealised thermodynamic cycle of a heat engine that converts heat into mechanical

179

URBAN EXTENTS Congo, Democra  

E-Print Network (OSTI)

URBAN EXTENTS Congo, Democra Rwanda United Rep. of GRUMPv1 ´ 0 25 50 Km Lambert Azimuthal Equal. Available at:http://sedac.ciesin.columbia.edu/gpw/ United Republic of Tanzania Democratic Republic of Congo

Columbia University

180

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

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

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

182

Towards sustainable urban communities  

SciTech Connect

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

183

ISOTOPES IN WATER  

Science Journals Connector (OSTI)

The study of isotopic prosies ha two different though related basic aims: an understanding of the way in which the water cycle in linked to alterations in climate, and how the carbon cycle has responded to the...

W. GEORGE DARLING; ADRIAN H. BATH…

2006-01-01T23:59:59.000Z

184

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

185

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

186

Contemporary Anthropogenic Silver Cycle:? A Multilevel Analysis  

Science Journals Connector (OSTI)

In 1991, Baccini and Brunner stated that, with urbanization, the anthroposphere assumes high energy and material fluxes (16). ... Table 2.? Silver Fabrication Demand by End Usea ... In country-level cycles, the waste generation of silver from film and photograph production ranges from 1 to 4 g Ag/(capita·year) using an assumed direct relationship between photographic development and GDP per capita in constant prices, up to 10?000 USD per capita. ...

Jeremiah Johnson; Julie Jirikowic; Marlen Bertram; D. van Beers; R. B. Gordon; Kathryn Henderson; R. J. Klee; Ted Lanzano; R. Lifset; Lucia Oetjen; T. E. Graedel

2005-05-07T23:59:59.000Z

187

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

188

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

189

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

NLE Websites -- All DOE Office Websites (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,...

190

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.

191

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

192

Urban nUtrient Urban nUtrient  

E-Print Network (OSTI)

Urban nUtrient ManageMent Handbook #12;#12;Urban nUtrient ManageMent Handbook Content Coordinators of the Virginia Department of Conservation and Recreation. May 2011 #12;#12;Urban Nutrient Management Handbook I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Soil Physical Properties

Liskiewicz, Maciej

193

Solar-Thermal ALD Ferrite-Based Water Splitting Cycle - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

4 4 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Alan W. Weimer (Primary Contact), Darwin Arifin, Xinhua Liang, Victoria Aston and Paul Lichty University of Colorado Campus Box 596 Boulder, CO 80309-0596 Phone: (303) 492-3759 Email: alan.weimer@colorado.edu DOE Manager HQ: Sara Dillich Phone: (202) 586-7925 Email: Sara.Dillich@ee.doe.gov Contract Number: DE-FC36-05GO15044 Project Start Date: March 31, 2005 Project End Date: Project continuation and direction determined annually by DOE Fiscal Year (FY) 2012 Objectives Demonstrate the "hercynite cycle" feasibility for * carrying out redox. Initiate design, synthesis and testing of a nanostructured * active material for fast kinetics and transport.

194

Geodata for the urban environment  

E-Print Network (OSTI)

Geodata for the urban environment Robert Hack IAEG, Nottingham, 5 September 2006 #12;5 September 2006 Geodata for the urban environment - IAEG - Hack 2 What is Geodata? All location dependent data from: · Surface, and · Subsurface #12;5 September 2006 Geodata for the urban environment - IAEG - Hack

Hack, Robert

195

Urban health and health inequalities  

E-Print Network (OSTI)

Urban health and health inequalities and the role of urban forestry in Britain: A review Liz O'Brien Kathryn Williams Amy Stewart 2010 #12;Urban health and woodlands Contents Executive Summary 4 1.1.3 Definition of terms 9 3. The policy context: health and forestry policies 11 3.1 Health policies 11 3

196

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

197

Simulation of Urban Climate with High-Resolution WRF Model: A Case Study in Nanjing, China  

SciTech Connect

In this study, urban climate in Nanjing of eastern China is simulated using 1-km resolution Weather Research and Forecasting (WRF) model coupled with a single-layer Urban Canopy Model. Based on the 10-summer simulation results from 2000 to 2009 we find that the WRF model is capable of capturing the high-resolution features of urban climate over Nanjing area. Although WRF underestimates the total precipitation amount, the model performs well in simulating the surface air temperature, relative humidity, and precipitation frequency, diurnal cycle and inter-annual variability. We find that extremely hot events occur most frequently in urban area, with daily maximum (minimum) temperature exceeding 36ºC (28ºC) in around 40% (32%) of days. Urban Heat Island (UHI) effect at surface is more evident during nighttime than daytime, with 20% of cases the UHI intensity above 2.5ºC at night. However, The UHI affects the vertical structure of Planet Boundary Layer (PBL) more deeply during daytime than nighttime. Net gain for latent heat and net radiation is larger over urban than rural surface during daytime. Correspondingly, net loss of sensible heat and ground heat are larger over urban surface resulting from warmer urban skin. Because of different diurnal characteristics of urban-rural differences in the latent heat, ground heat and other energy fluxes, the near surface UHI intensity exhibits a very complex diurnal feature. UHI effect is stronger in days with less cloud or lower wind speed. Model results reveal a larger precipitation frequency over urban area, mainly contributed by the light rain events (<10 mm day-1). Consistent with satellite dataset, around 10-20% more precipitation occurs in urban than rural area at afternoon induced by more unstable urban PBL, which induces a strong vertical atmospheric mixing and upward moisture transport. A significant enhancement of precipitation is found in the downwind region of urban in our simulations in the afternoon.

Yang, Ben; Zhang, Yaocun; Qian, Yun

2012-08-05T23:59:59.000Z

198

Biogeochemical cycling in an organic-rich coastal marine basin. 8. A sulfur isotopic budget balanced by differential diffusion across the sediment-water interface  

SciTech Connect

The sulfur isotopic composition of the sulfur fluxes occurring in the anoxic marine sediments of Cape Lookout Bight, N.C., U.S.A., was determined, and the result of isotopic mass balance was obtained via the differential diffusion model. Seasonal pore water sulfate delta/sup 34/S measurements yielded a calculated sulfate input of 0.6 per thousand. Sulfate transported into the sediments via diffusion appeared to be enriched in the lighter isotope because its concentration gradient was steeper, due to the increase in the measured isotopic composition of sulfate with depth. Similarly, the back diffusion of dissolved sulfide towards the sediment-water interface appeared enriched in the heavier isotope. The isotopic composition of this flux was calculated from measurements of the delta/sup 34/S of dissolved sulfide and was determined to be 15.9 per thousand. The isotopic composition of buried sulfide was determined to be -5.2 per thousand and the detrital sulfur input was estimated to be -6.2 per thousand. An isotope mass balance equation based upon the fluxes at the sediment-water interface successfully predicted the isotopic composition of the buried sulfur flux within 0.5 per thousand, thus confirming that isotopes diffuse in response to their individual concentration gradients.

Chanton, J.P.; Martens, C.S.

1987-05-01T23:59:59.000Z

199

Chapter 7 - Urban Wastewater Treatment for Recycling and Reuse in Industrial Applications: Indian Scenario  

Science Journals Connector (OSTI)

Abstract Urban wastewater management has become a challenge in many countries because infrastructure development and regulations have not kept pace with population growth and urbanization. This chapter focuses on urban wastewater management and the possible use of treated water for industrial applications in India. The figures on India’s annual urban population are rising and expected to reach about 600 million by 2030, making India more peri-urban than rural. It is realised that Indian industry has not taken a neutral stance on the required quality and quantity of water. The current national water share for Indian industry is only about 8%, which is far lower than in developed countries with respect to higher reuse and recycling applications. However, the water share of Indian industry will be growing along with the growing GDP. According to a recent Industry/Commerce & Government assessment, the water requirement for industrial use will increase from the current 30 billion m3 to-120 billion m3 by 2025. India is already an almost water-stressed country. The huge water demand of industry can be balanced by recycling and reusing urban wastewater, which would also provide an opportunity for the growth of Indian industry should this type of program be adopted. It would be possible to reuse 40–50% of secondary sewage for industrial and indirect potable use. If the sustainability of resources was maintained in light of increasing industrial water demand, the present reuse of less than 8% would be increased to 30–40% toward the projected water demand of 2030. Industrial water production from secondary sewage of urban and semi-urban areas can increase the water availability to Indian industrial sectors by establishing a joint municipal–industrial collaboration.

R. Saravanane; Vivek V. Ranade; Vinay M. Bhandari; A. Seshagiri Rao

2014-01-01T23:59:59.000Z

200

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

NLE Websites -- All DOE Office Websites (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. -...

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

Distributed Water Infrastructure for Sustainable Communities  

Science Journals Connector (OSTI)

Distributed water infrastructure (located at the community or the household level) is relatively untried and unproven, compared with technologies for managing urban water at higher (e.g. regional) levels. This...

Christos K. Makropoulos; David Butler

2010-09-01T23:59:59.000Z

202

A Stable Urban Ecosystem  

Science Journals Connector (OSTI)

...scientific findings now working their way through the R & D pipeline suggests that the trend toward reduced unit costs will continue...while the pre-liminary draft on Human Settlements (10) waxes still more optimistic. The growth of urbanism in Java is my...

Richard L. Meier

1976-06-04T23:59:59.000Z

203

URBAN EXTENTS Congo, Democra  

E-Print Network (OSTI)

URBAN EXTENTS Botswana Congo, Democra Congo Namibia Zambia GRUMPv1 A t l a n t i c O c e a n � 0 Republic of Congo This document is licensed under a Creative Commons 3.0 Attribution License http

Columbia University

204

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.

205

International Conference Water Efficiency  

E-Print Network (OSTI)

International Conference Water Efficiency in Urban Areas Concepts, Technologies, Socio Economics for PostersRegistration via Fax: +49 941 29688-17 Yes, I will participate International Conference Water of the invoice. Payment must be received no later than 14 days before the conference begins (it has to be sett

Wehrli, Bernhard

206

Life Cycle Cost Analysis for Sustainable Buildings  

Energy.gov (U.S. Department of Energy (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.

207

Life-Cycle Analysis of Geothermal Technologies  

Energy.gov (U.S. Department of Energy (DOE))

The results and tools from this project will help GTP and stakeholders determine and communicate GT energy and GHG benefits and water impacts. The life-cycle analysis (LCA) approach is taken to address these effects.

208

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.

209

Busting a Chlorine Swimming Pool Urban Myth1 by Chris Wiant2  

E-Print Network (OSTI)

Busting a Chlorine Swimming Pool Urban Myth1 by Chris Wiant2 3 The Water Quality and Health Council or outdoor.9 10 What actually causes the distinctive, irritating smell around swimming pools is not chlorine an opportunity to address a very common urban myth.5 6 A healthy chlorinated pool can emit a light chemical odor

South Bohemia, University of

210

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

211

Water Rate Escalations  

Energy.gov (U.S. Department of Energy (DOE))

Federal agencies need accurate water cost escalation rates to perform life cycle cost analyses for water efficiency projects to meet Executive Order 13514 and Energy Independence and Security Act...

212

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

213

Thermodynamic analysis of adsorption refrigeration cycles  

SciTech Connect

High- and mid-temperature waste heat can be recovered by using existing heat pump technologies. However, heat utilization near environmental temperatures still faces technical hurdles. Silica gel-water adsorption cycles have a distinct advantage over other systems in their ability to be driven by near-ambient temperature heat. Waste heat (above 60 C) can be exploited by using conventional silica gel-water adsorption chiller. The advanced silica gel-water adsorption chiller can operate effectively by utilizing low-grade waste heat ({approximately}50 C) as the driving source with a cooling source of 30 C. In this paper, the effect of operating temperatures on cycle performance is discussed from the thermodynamic viewpoint. The temperature effectiveness and the entropy generation number on cycle time are analyzed. For a comparatively short cycle time, adsorber/desorber heat exchanger temperature effectiveness reaches up to 92% after only 200 sec. The entropy generation number N{sub s} is defined by the ratio between irreversibility generated during a cycle and availability of the heat transfer fluid. The result showed that for the advanced adsorption cycle the entropy generation number N{sub s} is smaller for hot water temperature between 45 to 55 C with a cooling source of 30 C, while for the conventional cycle N{sub s} is smaller for hot water temperature between 65 to 75 C /with the same cooling source temperature.

Saha, B.B.; Akisawa, Atsushi; Kashiwagi, Takao [Tokyo Univ. of Agriculture and Technology, Koganei, Tokyo (Japan)

1997-12-31T23:59:59.000Z

214

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.

215

Photovoltaics Life Cycle Analysis  

E-Print Network (OSTI)

Metrics of Life-Cycle Performance Energy Payback Times (EPBT) Greenhouse Gas Emissions (GHG) Toxic Gases #12;6 Life Cycle GHG Emissions ­EuropeLife Cycle GHG Emissions ­Europe Insolation: 1700 kwh/m2-yr 0 10 #12;7 Life Cycle GHG Emissions ­Comparison with Conventional Technologies Life Cycle GHG Emissions

216

Statistical estimation of water distribution system pipe break risk  

E-Print Network (OSTI)

The deterioration of pipes in urban water distribution systems is of concern to water utilities throughout the world. This deterioration generally leads to pipe breaks and leaks, which may result in reduction in the water-carrying capacity...

Yamijala, Shridhar

2009-05-15T23:59:59.000Z

217

An integrated monitoring/modeling framework for assessing human-nature interactions in urbanizing watersheds: Wappinger and Onondaga Creek watersheds, New York, USA  

Science Journals Connector (OSTI)

In much of the world, rapidly expanding areas of impervious surfaces due to urbanization threaten water resources. Although tools for modeling and projecting land use change and water quantity and quality exist independently, to date it is rare to find ... Keywords: Impervious surface, Remote sensing, Socio-economic factors, Uncertainty, Urbanization, Water resources

Bongghi Hong; Karin E. Limburg; Myrna H. Hall; Giorgos Mountrakis; Peter M. Groffman; Karla Hyde; Li Luo; Victoria R. Kelly; Seth J. Myers

2012-06-01T23:59:59.000Z

218

The formation of volcanic centers at the Colorado Plateau as a result of the passage of aqueous fluid through the oceanic lithosphere and the subcontinental mantle: New implications for the planetary water cycle in the western United States  

Science Journals Connector (OSTI)

We provide new petrological evidence for the strong influence of water on the formation of the oceanic lithospheric mantle, the subcontinental mantle above, and the continental lithosphere. Our analysis throws new light on the hypothesis that new continental lithosphere was formed by the passage of silicate-rich aqueous fluid through the sub-continental mantle. In order to investigate this hypothesis, we analyzed a representative collection of lherzolite and harzburgite xenoliths from the sample volcano known as “The Thumb”, located in the center of the Colorado Plateau, western United States. The studied sample collection exhibits multi-stage water enrichment processes along point, line and planar defect structures in nominally anhydrous minerals and the subsequent formation of the serpentine polymorph antigorite along grain boundaries and in totally embedded annealed cracks. Planar defect structures act like monomineralic and interphase grain boundaries in the oceanic lithosphere and the subcontinental mantle beneath the North American plate, which was hydrated by the ancient oceanic Farallon plate during the Cenozoic and Mesozoic eras. We used microspectroscopical, petrological, and seismological techniques to confirm multi-stage hydration from a depth of ?150 km to just below the Moho depth. High-resolution mapping of the water distribution over homogeneous areas and fully embedded point, line and planar defects in olivine crystals of lherzolitic and harzburgitic origin by synchrotron infrared microspectroscopy enabled us to resolve local wet spots and thus reconstruct the hydration process occurring at a depth of ?150 km (T ? 1225 °C). These lherzolites originated from the middle part of the Farallon mantle slab; they were released during the break up of the Farallon mantle slab, caused by the instability of the dipping slab. The background hydration levels in homogeneous olivines reached ?138 ppm wt H2O, and the water concentration at the planar defects could reach up to ?1000 ppm wt H2O. However, the formation of antigorite in grain boundaries was found to be the primary hydration mechanism for harzburgitic samples originating from the subcontinental mantle (for hydration, T ? 600 °C). Additionally, the formation of antigorite in lherzolites could be found in annealed cracks. From these observations, we conclude that hydration induces multi-stage water enrichment of the mantle wedge by a process that is dominated by the growth and movement of ubiquitous cracks, which acts as planar defects. Cracks in the mantle seem to be the an important feature in both the water cycle of the subduction zone and the formation of the continental lithosphere.

Holger Sommer; Klaus Regenauer-Lieb; Biliana Gasharova; Haemyeong Jung

2012-01-01T23:59:59.000Z

219

Magnesium energy cycle system for the power product  

Science Journals Connector (OSTI)

The energy storage of solar radiation with magnesium as an energy reservoir is proposed for renewable energy cycle. Magnesium reaction with water generating hydrogen and residual...

Sakurai, Yasutaka; Yabe, Takashi; Ikuta, Kazunari; Ishioka, Manabu; Ogata, Yoichi; Sato, Yuji

2007-01-01T23:59:59.000Z

220

Institute of Water Research Annual Technical Report  

E-Print Network (OSTI)

environmental problems presently facing the state of Michigan are surface and ground water quality management analysis, technology transfer, urban water systems, water quality, water quality management, watershed management, wetlands Water Problems and Issues Introduction Michigan has a very abundant and diverse supply

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

Institute of Water Research Annual Technical Report  

E-Print Network (OSTI)

environmental problems presently facing the state of Michigan are surface and ground water quality management on research, and extended education programs on watershed management and surface and ground water protection transfer, urban water systems, water quality, water quality management, watershed management, wetlands

222

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

223

Efficiency combined cycle power plant  

SciTech Connect

This patent describes a method of operating a combined cycle power plant. It comprises: flowing exhaust gas from a combustion turbine through a heat recovery steam generator (HRSG); flowing feed water through an economizer section of the HRSG at a flow rate and providing heated feed water; flowing a first portion of the heated feed water through an evaporator section of the HRSG and producing saturated steam at a production rate, the flow rate of the feed water through the economizer section being greater than required to sustain the production rate of steam in the evaporator section; flowing fuel for the turbine through a heat exchanger; and, flowing a second portion of the heated feed water provided by the economizer section through the heat exchanger then to an inlet of the economizer section, thereby heating the fuel flowing through the heat exchanger.

Pavel, J.; Meyers, G.A.; Baldwin, T.S.

1990-06-12T23:59:59.000Z

224

Urban Computing: Concepts, Methodologies, and Applications  

Science Journals Connector (OSTI)

Urbanization's rapid progress has modernized many people's lives but also engendered big issues, such as traffic congestion, energy consumption, and pollution. Urban computing aims to tackle these issues by using the data that has been generated in cities ... Keywords: Urban computing, big data, city dynamics, computing with heterogeneous data, human mobility, knowledge fusion, trajectories, urban informatics, urban sensing

Yu Zheng, Licia Capra, Ouri Wolfson, Hai Yang

2014-09-01T23:59:59.000Z

225

Offshore Rankine Cycles.  

E-Print Network (OSTI)

?? The title of the thesis - "Offshore Rankine Cycles" - is very general and cover a large range of engineering fields, e.g. thermodynamic cycles… (more)

Brandsar, Jo

2012-01-01T23:59:59.000Z

226

The Organic Rankine Cycle  

Science Journals Connector (OSTI)

Chap. 3 is dedicated to Rankine cycles with organic fluids: the so-called organic Rankine cycles (ORC), which in recent years have ... of the use of...

Costante Mario Invernizzi

2013-01-01T23:59:59.000Z

227

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

228

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

229

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

NLE Websites -- All DOE Office Websites (Extended Search)

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

230

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

231

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

232

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.

233

Optimization of Air Conditioning Cycling  

E-Print Network (OSTI)

Benchmark – Long Cycle .............................................................................................. 95 5.46 System Pressures and Temperatures – Valve Part Cycle Vs Benchmark – Long Cycle...

Seshadri, Swarooph

2012-10-19T23:59:59.000Z

234

Binary Cycle Power Plant | Open Energy Information  

Open Energy Info (EERE)

Binary Cycle Power Plant Binary Cycle Power Plant (Redirected from Binary Cycle Power Plants) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Binary Cycle Power Plant General List of Binary Plants Binary power plant process diagram - DOE EERE 2012 Binary cycle geothermal power generation plants differ from Dry Steam and Flash Steam systems in that the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units. Low to moderately heated (below 400°F) geothermal fluid and a secondary (hence, "binary") fluid with a much lower boiling point that water pass through a heat exchanger. Heat from the geothermal fluid causes the secondary fluid to flash to vapor, which then drives the turbines and subsequently, the generators.

235

Binary Cycle Power Plant | Open Energy Information  

Open Energy Info (EERE)

Binary Cycle Power Plant Binary Cycle Power Plant (Redirected from Binary) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Binary Cycle Power Plant General List of Binary Plants Binary power plant process diagram - DOE EERE 2012 Binary cycle geothermal power generation plants differ from Dry Steam and Flash Steam systems in that the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units. Low to moderately heated (below 400°F) geothermal fluid and a secondary (hence, "binary") fluid with a much lower boiling point that water pass through a heat exchanger. Heat from the geothermal fluid causes the secondary fluid to flash to vapor, which then drives the turbines and subsequently, the generators. Binary cycle power plants are closed-loop systems and virtually nothing

236

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

237

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

238

Definition: Thermodynamic cycle | Open Energy Information  

Open Energy Info (EERE)

Thermodynamic cycle Thermodynamic cycle Jump to: navigation, search Dictionary.png Thermodynamic cycle A process in which a fluid (water, air, ammonia, etc) successively changes state (from a liquid to a gas and back to a liquid) for the purpose of producing or transferring energy.[1] View on Wikipedia Wikipedia Definition A thermodynamic cycle consists of a collection of thermodynamic processes transferring heat and work, while varying pressure, temperature, and other state variables, eventually returning a system to its initial state. In the process of going through this cycle, the system may perform work on its surroundings, therefore acting as a heat engine. State quantities depend only on the thermodynamic state, and cumulative variation of such properties adds up to zero during a cycle. Process quantities (or

239

Implementing an agricultural water conservation innovation among the urban public: an analysis of the pilot study phase of the San Antonio Evapotranspiration Project--a cooperative effort between the Texas Agricultural Extension Service--Bexar County Offices, Bexar County Master Gardeners, San Antonio Water Systems and Texas A&M University  

E-Print Network (OSTI)

innovations which, though perhaps originally intended for addressing rural agricultural dilemmas, eventually are transferred into the urban context to address different problems. One such technological innovation, which was originally aimed at addressing a...

Reilly, Laura Lynne

2012-06-07T23:59:59.000Z

240

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

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

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

242

Urban land teleconnections and sustainability  

Science Journals Connector (OSTI)

...urban areas but engaged in agriculture. As such, peri-urban areas are hybrid...Performance of New Zealand’s Agriculture Industry ( Lincoln Univ , Canterbury...20922 . 57 Naylor R ( 2005 ) Agriculture. Losing the links between livestock...2010 ) Coupling GIS and LCA for biodiversity assessments...

Karen C. Seto; Anette Reenberg; Christopher G. Boone; Michail Fragkias; Dagmar Haase; Tobias Langanke; Peter Marcotullio; Darla K. Munroe; Branislav Olah; David Simon

2012-01-01T23:59:59.000Z

243

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

244

Riparian areas in urban settings: two case studies from Greece  

Science Journals Connector (OSTI)

Riparian areas are significant ecosystems due to the numerous and substantial services they provide. These ecosystem services can range from wildlife habitat, water quality improvement, flood mitigation and recreational opportunities. Human developments, including cities and towns are frequently established in the riparian areas and degrade their functionality. Maintaining healthy riparian areas in urban settings that sustain their connectivity with the natural riparian areas should be of a great priority. Fragmented riparian areas lose many of the aforementioned ecosystem services. At the same time healthy riparian areas are aesthetically pleasing, creating a feeling of escape for the inhabitants, while also increasing the real estate value of the adjacent structures. In this study examples of healthy and degraded urban riparian areas from two Greek cities are presented. Overall, the proper restoration and sustainable management of these areas can improve the quality of life in urban settings and maintain the services they provide.

Valasia Iakovoglou; George N. Zaimes; Dimitrios Gounaridis

2013-01-01T23:59:59.000Z

245

Nebraska Water Conference Council's Annual Water & Natural Resources Tour  

E-Print Network (OSTI)

in the Platte River valley and ground water contamination in southwestern Grand Island. ` The ongoing drought cycle. Ground water level changes and related ground water/surface water interaction research-owned water wells. Cleanup and remediation efforts will be discussed by Gary Mader, Utilities Director, City

Nebraska-Lincoln, University of

246

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

247

"Dangerous" urban trees & community health & safety  

E-Print Network (OSTI)

, safety & climate change · Forest Research project "Climate change and street trees" · Reviews-term threats. Introduction #12;Urban trees, safety & climate change · General concern that urban tree canopy shown in 5 of 8 English regions. Research Problem #12;Urban trees, safety & climate change #12;Urban

248

Sandia National Laboratories: the water cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

to address the most challenging and demanding climate-change issues. Accelerated Climate Modeling for Energy (ACME) is designed to accel-erate the development and applica-tion of...

249

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.

250

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"

251

Nuclear Fuel Cycle Integrated System Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Fuel Cycle Integrated System Analysis Fuel Cycle Integrated System Analysis Abdellatif M. Yacout Argonne National Laboratory Nuclear Engineering Division The nuclear fuel cycle is a complex system with multiple components and activities that are combined to provide nuclear energy to a variety of end users. The end uses of nuclear energy are diverse and include electricity, process heat, water desalination, district heating, and possibly future hydrogen production for transportation and energy storage uses. Components of the nuclear fuel cycle include front end components such as uranium mining, conversion and enrichment, fuel fabrication, and the reactor component. Back end of the fuel cycle include used fuel coming out the reactor, used fuel temporary and permanent storage, and fuel reprocessing. Combined with those components there

252

Quantifying Carbon Cycle Feedbacks  

Science Journals Connector (OSTI)

Perturbations to the carbon cycle could constitute large feedbacks on future changes in atmospheric CO2 concentration and climate. This paper demonstrates how carbon cycle feedback can be expressed in formally similar ways to climate feedback, ...

J. M. Gregory; C. D. Jones; P. Cadule; P. Friedlingstein

2009-10-01T23:59:59.000Z

253

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.

254

The combined cycle  

Science Journals Connector (OSTI)

Any combination of at least two cyclic processes converting thermal energy (‘heat’) to work forms a combined cycle. In principle, the potential number of ... number of options reduces to a variety of cycles consi...

R. U. Pitt

1995-01-01T23:59:59.000Z

255

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

256

Heat resources and organic Rankine cycle machines  

Science Journals Connector (OSTI)

Abstract Various Rankine cycle architectures for single fluids and other improved versions operating with ammonia/water mixture are presented in this paper. Untapped heat resources and their potential for driving organic Rankine cycles are outlined. The nature – state and temperature of the heat source significantly influences the choice of the type of organic Rankine cycle machine. The temperature appears as a critical parameter during the selection process. Modules differ from one another from technology, size and cost viewpoints. The investment cost of an ORC project includes machine, engineering, system integration, capital costs, etc. and is closely linked to the application.

Bertrand F. Tchanche; M. Pétrissans; G. Papadakis

2014-01-01T23:59:59.000Z

257

Binary Cycle Power Plant | Open Energy Information  

Open Energy Info (EERE)

GEOTHERMAL ENERGYGeothermal Home GEOTHERMAL ENERGYGeothermal Home Binary Cycle Power Plant General List of Binary Plants Binary power plant process diagram - DOE EERE 2012 Binary cycle geothermal power generation plants differ from Dry Steam and Flash Steam systems in that the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units. Low to moderately heated (below 400°F) geothermal fluid and a secondary (hence, "binary") fluid with a much lower boiling point that water pass through a heat exchanger. Heat from the geothermal fluid causes the secondary fluid to flash to vapor, which then drives the turbines and subsequently, the generators. Binary cycle power plants are closed-loop systems and virtually nothing (except water vapor) is emitted to the atmosphere. Resources below 400°F

258

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

259

GAX absorption cycle design process  

SciTech Connect

This paper presents an absorption system design process that relies on computer simulations that are validated by experimental findings. An ammonia-water absorption heat pump cycle at 3 refrigeration tons (RT) and chillers at 3.3 RT and 5 RT (10.5 kW, 11.6 kW, and 17.6 kW) were initially modeled and then built and tested. The experimental results were used to calibrate both the cycle simulation and the component simulations, yielding computer design routines that could accurately predict component and cycle performance. Each system was a generator-absorber heat exchange (GAX) cycle, and all were sized for residential and light commercial use, where very little absorption equipment is currently used. The specific findings of the 5 RT (17.6 kW) chiller are presented. Modeling incorporated a heat loss from the gas-fired generator and pressure drops in both the evaporator and absorber. Simulation results and experimental findings agreed closely and validated the modeling method and simulation software.

Priedeman, D.K.; Christensen, R.N.

1999-07-01T23:59:59.000Z

260

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

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

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

262

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

263

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

264

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

265

NREL: Energy Analysis - Nuclear Power Results - Life Cycle Assessment  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Power Results - Life Cycle Assessment Harmonization Nuclear Power Results - Life Cycle Assessment Harmonization Over the last 30 years, analysts have conducted life cycle assessments on the environmental impacts associated with a variety of nuclear power technologies and systems. These life cycle assessments have had wide-ranging results. To better understand greenhouse gas (GHG) emissions from nuclear power systems, NREL completed a comprehensive review and analysis of life cycle assessments focused on light water reactors (LWRs)-including both boiling water reactors (BWRs) and pressurized water reactors (PWRs)-published between 1980 and 2010. NREL developed and applied a systematic approach to review life cycle assessment literature, identify primary sources of variability and, where possible, reduce variability in GHG emissions

266

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.

267

Triple-effect absorption chiller cycle: A step beyond double-effect cycles  

SciTech Connect

Many advanced'' absorption cycles have been proposed during the current century. Of the hundreds of absorption cycles which have been patented throughout the world, all commercially manufactured products for air conditioning buildings have been variations of just two basic absorption cycles: single-effect and condenser-coupled double-effect cycles. The relatively low cooling coefficients of performance (COPs) inherent in single-effect and double-effect cycles limits the economic applicability of absorption air conditioners (chillers) in the United States. A triple-effect absorption chiller cycle is discussed. This cycle uses two condensers and two absorbers to achieve the triple effect.'' Depending on the absorption fluids selected, this triple-effect cycle is predicted to improve cooling COPs by 18% to 60% compared with the equivalent double-effect cycle. This performance improvement is obtained without increasing the total amount of heat-transfer surface area needed for the heat exchangers. A comparison between the calculated performances of a double-effect cycle and a triple-effect cycle (both using ammonia-water (NH{sub 3}/H{sub 2}O) as the absorption fluid pair) is presented. The triple-effect cycle is predicted to have an 18% higher cooling COP (1.41 compared with 1.2 for a double-effect), lower pressure (47.70 atm (701 psi) instead of 68.05 atm (1000 psi)), significantly reduced pumping power (less than one-half that of the double-effect cycle), and potentially lower construction cost (33% less total heat exchange needed). Practical implications for this triple-effect cycle are discussed. 16 refs., 5 figs., 1 tab.

DeVault, R.C.

1990-01-01T23:59:59.000Z

268

Building Technology and Urban Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Office building exterior and infrared thermograph Office building exterior and infrared thermograph Building Technology and Urban Systems Building Technology and Urban Systems application/pdf icon btus-org-chart-03-2013.pdf In the areas of Building Technology and Urban Systems, EETD researchers conduct R&D and develop physical and information technologies to make buildings and urban areas more energy- and resource-efficient. These technologies create jobs and products for the marketplace in clean technology industries. They improve quality of life, and reduce the emissions of pollutants, including climate-altering greenhouse gases. BTUSD's goal is to provide the technologies needed to operate buildings at 50 to 70 percent less energy use than average today. BTUS develops, demonstrates and deploys: Information technologies for the real-time monitoring and control of

269

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

270

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

271

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

272

Effects of Urbanization on Sediment Microbial Communities in Lotic Ecosystems.  

E-Print Network (OSTI)

?? The world is becoming increasingly urbanized, with the majority of the world's population now living in urban areas. Urbanization has the potential to significantly… (more)

Drury, Bradley

2014-01-01T23:59:59.000Z

273

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

274

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

275

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

276

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

277

MHK Technologies/Kalina Cycle OTEC | Open Energy Information  

Open Energy Info (EERE)

Kalina Cycle OTEC Kalina Cycle OTEC < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Kalina Cycle OTEC.jpg Technology Profile Primary Organization Ocean Engineering and Energy Systems Technology Resource Click here OTEC Technology Type Click here OTEC - Closed Cycle Technology Description Kalina Cycle The Kalina Cycle is a variation of the more conventional closed cycle OTEC system incorporating aqueous ammonia ammonia water mixture as the working fluid instead of the conventional ammonia or propylene working fluid employed in earlier designs of closed cycle OTEC power systems The Kalina Cycle is a break through technology for OTEC power systems providing a nearly 80 increase in efficiency over previous closed cycle designs Because the ammonia water concentrations can be varied throughout the system to optimize according to system temperatures sort of a designer working fluid and by adding an extra component the recuperator heat losses generally experienced in other closed cycle designs can be minimized and recovered thereby improving the overall efficiency of the power cycle

278

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

279

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

280

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.

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

California's water futures: How water conservation and varying Delta exports affect water supply in the face of climate change  

E-Print Network (OSTI)

. This thesis uses an integrated statewide hydro-economic model to examine the water supply and cost desalination, and expanded water recycling. Results indicate that, depending on climate and Delta export with urban conservation, because it is so rarely used. Recycled water and desalination are expanded primarily

Lund, Jay R.

282

A Course on the Physics of Urban and Environmental Problems  

Science Journals Connector (OSTI)

A physics course for social scientists is described. It presents the physics usually taught in a physical science course for liberal arts majors within the context of several urban and environmental problems. The problems considered include transportation air pollution thermal pollution of water and scarcity of resources. They are analyzed in a physical quantitative way but in addition the legal political and social aspects are presented and discussed.

Edwin H. Marston

1970-01-01T23:59:59.000Z

283

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

284

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

285

Population Cycles in Small Mammals CHARLES J. KREBS and JUDITH H. MYERS  

E-Print Network (OSTI)

Population Cycles in Small Mammals CHARLES J. KREBS and JUDITH H. MYERS Institute of Animal;268 CHARLES J. KREBS AND JUDITH H. MYERS VII. Evolution of Microtine Cycles . . 384 VIII. Summary . . 386 be almost anything: golden mice, holy water fr

Krebs, Charles J.

286

A window on urban sustainability  

SciTech Connect

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

287

Avestar® - Syngas-Fired Combined Cycle Dynamic Simulator  

NLE Websites -- All DOE Office Websites (Extended Search)

Syngas-Fired Combined Cycle Dynamic Simulator Syngas-Fired Combined Cycle Dynamic Simulator The AVESTAR® center offers courses using the Combined Cycle Simulator, focusing on the power generation process after gasification. This simulator is well-suited for concentrated training on operation and control of the gas and steam turbines; condensate, feed water, and circulating water systems; heat recovery steam generator; and selective catalytic reduction (SCR) unit. Combined cycle simulator startup operations include bringing up the gas turbine to rated speed on natural gas and then switching over to the firing of synthesis gas. Key capabilities of the Combined Cycle Simulator include: Combined Cycle Simulator Operator training station HMI display for overview of Gas Turbine - Train A Normal base load operation

288

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

289

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, sustainable urbanization may be the "last best hope" for economic development & environmental stewardship #12

Columbia University

290

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

291

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

292

Roles of Urban Tree Canopy and Buildings in Urban Heat Island Effects: Parameterization and Preliminary Results  

E-Print Network (OSTI)

and Forecasting model and an urban canopy model (WRF-UCM). By parameterizing the effects of these natural surfaces alongside roadways and buildings, the modified WRF-UCM is used to in- vestigate how urban trees, soil longwave radiative trapping in urban street canyons. 1. Introduction Urbanization can alter local climate

Dickerson, Russell R.

293

Power Plant Cycling Costs  

SciTech Connect

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

294

Life Cycle Cost Estimate  

Directives, Delegations, and Requirements

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

295

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...

296

Boston Architectural College Urban Sustainability Initiative  

SciTech Connect

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

297

Life cycle assessment of various hydrogen production methods  

Science Journals Connector (OSTI)

A comprehensive life cycle assessment (LCA) is reported for five methods of hydrogen production, namely steam reforming of natural gas, coal gasification, water electrolysis via wind and solar electrolysis, and thermochemical water splitting with a Cu–Cl cycle. Carbon dioxide equivalent emissions and energy equivalents of each method are quantified and compared. A case study is presented for a hydrogen fueling station in Toronto, Canada, and nearby hydrogen resources close to the fueling station. In terms of carbon dioxide equivalent emissions, thermochemical water splitting with the Cu–Cl cycle is found to be advantageous over the other methods, followed by wind and solar electrolysis. In terms of hydrogen production capacities, natural gas steam reforming, coal gasification and thermochemical water splitting with the Cu–Cl cycle methods are found to be advantageous over the renewable energy methods.

E. Cetinkaya; I. Dincer; G.F. Naterer

2012-01-01T23:59:59.000Z

298

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

299

FUEL CYCLE POTENTIAL WASTE FOR DISPOSITION  

SciTech Connect

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

300

FUEL CYCLE POTENTIAL WASTE FOR DISPOSITION  

SciTech Connect

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

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

Water Boatman  

NLE Websites -- All DOE Office Websites (Extended Search)

Water Boatman Water Boatman Name: Joshua Location: N/A Country: N/A Date: N/A Question: I am doing a research on water boatman. I go through your web, I only find little information about it. Can you give me its habitat, its appearance, life cycles and communication between themselves and they defenses themselves? Replies: Find a good book in the library on insects, also on pond biology/ecology, as boatmen live in ponds and marshes. It should be easy to find. J.Elliott Try this web site: http://www.dnr.state.il.us/ctap.ctaphome.htm or http://www.dnr.state.il.us/nredu/nredpage.htm this is the state of Illinois Dept. of Natural Resources homepage and somewhere on there is a page called "bugpage". They have pictures and characteristics of aquatic insects there. good luck

302

Thermodynamics of urban population flows  

Science Journals Connector (OSTI)

Orderliness, reflected via mathematical laws, is encountered in different frameworks involving social groups. Here we show that a thermodynamics can be constructed that macroscopically describes urban population flows. Microscopic dynamic equations and simulations with random walkers underlie the macroscopic approach. Our results might be regarded, via suitable analogies, as a step towards building an explicit social thermodynamics.

A. Hernando and A. Plastino

2012-12-05T23:59:59.000Z

303

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

SciTech Connect

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

304

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

305

The Carbon Cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

The Carbon Cycle The Carbon Cycle The global carbon cycle involves the carbon in and exchanging between the earth's atmosphere, fossil fuels, the oceans, and the vegetation and soils of the earth's terrestrial ecosystems. image Each year, the world's terrestrial ecosystems withdraw carbon from the atmosphere through photosynthesis and add it again through respiration and decay. A more detailed look at the global carbon cycle for the 1990s is shown below. The main annual fluxes in GtC yr-1 are: pre-industrial "natural" fluxes in black and "anthropogenic" fluxes in red (modified from Sarmiento and Gruber, 2006, with changes in pool sizes from Sabine et al., 2004a). The net terrestrial loss of -39 GtC is inferred from cumulative fossil fuel emissions minus atmospheric increase minus ocean storage. The loss of

306

Wetland (peat) Carbon Cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

Wetland (peat) Carbon Cycle Methane (CH4) is an important greenhouse gas, twenty times more potent than CO2, but atmospheric concentrations of CH4 under future climate change are...

307

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

NLE Websites -- All DOE Office Websites (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:...

308

Life cycle assessment (LCA) and life cycle energy analysis (LCEA) of buildings and the building sector: A review  

Science Journals Connector (OSTI)

Abstract This review summarizes and organizes the literature on life cycle assessment (LCA), life cycle energy analysis (LCEA) and life cycle cost analysis (LCCA) studies carried out for environmental evaluation of buildings and building related industry and sector (including construction products, construction systems, buildings, and civil engineering constructions). The review shows that most LCA and LCEA are carried out in what is shown as “exemplary buildings”, that is, buildings that have been designed and constructed as low energy buildings, but there are very few studies on “traditional buildings”, that is, buildings such as those mostly found in our cities. Similarly, most studies are carried out in urban areas, while rural areas are not well represented in the literature. Finally, studies are not equally distributed around the world.

Luisa F. Cabeza; Lídia Rincón; Virginia Vilariño; Gabriel Pérez; Albert Castell

2014-01-01T23:59:59.000Z

309

IFR fuel cycle  

SciTech Connect

The next major milestone of the IFR program is engineering-scale demonstration of the pyroprocess fuel cycle. The EBR-II Fuel Cycle Facility has just entered a startup phase, which includes completion of facility modifications and installation and cold checkout of process equipment. This paper reviews the development of the electrorefining pyroprocess, the design and construction of the facility for the hot demonstration, the design and fabrication of the equipment, and the schedule and initial plan for its operation.

Battles, J.E.; Miller, W.E. [Argonne National Lab., IL (United States); Lineberry, M.J.; Phipps, R.D. [Argonne National Lab., Idaho Falls, ID (United States)

1992-04-01T23:59:59.000Z

310

GIZ Sourcebook Module 2a: Land Use Planning and Urban Transport (Español)  

Open Energy Info (EERE)

GIZ Sourcebook Module 2a: Land Use Planning and Urban Transport (Español) GIZ Sourcebook Module 2a: Land Use Planning and Urban Transport (Español) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: GIZ Sourcebook Module 2a: Land Use Planning and Urban Transport (Español) Agency/Company /Organization: GIZ Complexity/Ease of Use: Not Available Website: www.sutp.org/component/phocadownload/category/25-2a?download=33:2a-lup Related Tools Alternative Fuels and Advanced Vehicles Data Center Demonstrating Electric Vehicles in Canada Electric Vehicle Charging Infrastructure Deployment Guidelines: British Columbia ... further results Find Another Tool FIND TRANSPORTATION TOOLS Which cities have succeeded in establishing land use patterns which support the more environmentally-friendly and efficient modes of transit, walking and cycling? What are the benefits of better land use planning for

311

Malone cycle refrigerator development  

SciTech Connect

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

312

Phosphate influences cycling of iron and carbon in the environment |  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Science Computing, Environment & Life Sciences Energy Engineering & Systems Analysis Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Science Highlights Postdoctoral Researchers Phosphate influences cycling of iron and carbon in the environment August 30, 2013 Tweet EmailPrint Aquatic and terrestrial environments are dynamic systems where coupled microbiological, geochemical, and hydrological processes define the complex interactions that drive the biogeochemical cycling of water and the major and minor elements. Therefore, a thorough understanding of these complex interactions is critical for predicting the biogeochemical cycling of carbon, nutrients, heavy metals, radionuclides, and other contaminants; managing water quality; and understanding the interactions between

313

Water quality Water quantity  

E-Print Network (OSTI)

01-1 · Water quality · Water quantity · Remediation strategies MinE 422: Water Resources: Younger, Banwart and Hedin. 2002. Mine Water. Hydrology, Pollution, Remediation. Impacts of mining on water mining ­ Often the largest long term issue ­ Water quality affected, surface/ground water pollution

Boisvert, Jeff

314

Water quality Water quantity  

E-Print Network (OSTI)

· Water quality · Water quantity · Remediation strategies MinE 422: Water Resources: Younger, Banwart and Hedin. 2002. Mine Water. Hydrology, Pollution, Remediation. Impacts of mining on water mining ­ Often the largest long term issue ­ Water quality affected, surface/ground water pollution

Boisvert, Jeff

315

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

316

Multiple reheat helium Brayton cycles for sodium fast reactors  

SciTech Connect

Sodium fast reactors (SFR) traditionally adopt the steam Rankine cycle for power conversion. The resulting potential for water-sodium reaction remains a continuing concern which at least partly delays the SFR technology commercialization and is a contributor to higher capital cost. Supercritical CO2 provides an alternative, but is also capable of sustaining energetic chemical reactions with sodium. Recent development on advanced inert-gas Brayton cycles could potentially solve this compatibility issue, increase thermal efficiency, and bring down the capital cost close to light water reactors. In this paper, helium Brayton cycles with multiple reheat and intercooling states are presented for SFRs with reactor outlet temperatures in the range of 510°C to 650°C. The resulting thermal efficiencies range from 39% and 47%, which is comparable with supercritical recompression CO2 cycles (SCO2 cycle). A systematic comparison between multiple reheat helium Brayton cycle and the SCO2 cycle is given, considering compatibility issues, plant site cooling temperature effect on plant efficiency, full plant cost optimization, and other important factors. The study indicates that the multiple reheat helium cycle is the preferred choice over SCO2 cycle for sodium fast reactors.

Haihua Zhao; Per F. Peterson

2008-07-01T23:59:59.000Z

317

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)

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... by the correlation coefficient), re- sulting in a slight decrease in the RMSE. A decrease in the roof fraction has the opposite effect. The latent heat flux also exhibits relatively small sensitivity to morpho- logical parameters primarily because it is such a small...

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

2008-01-01T23:59:59.000Z

318

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

319

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

320

Life Cycle Cost Analysis for Sustainable Buildings | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sustainable Buildings & Campuses » Life Cycle Sustainable Buildings & Campuses » Life Cycle Cost Analysis for Sustainable Buildings Life Cycle Cost Analysis for Sustainable Buildings October 4, 2013 - 4:54pm Addthis To help facility managers make sound decisions, Federal Energy Management Program (FEMP) provides guidance and resources on applying life cycle cost analysis (LCCA) to evaluate the cost-effectiveness of energy and water efficiency investments. Federal Requirements Life cycle cost (LCC) rules are promulgated in 10 CFR 436 A, Life Cycle Cost Methodology and Procedures and conforms to requirements in the National Energy Conservation Policy Act and subsequent energy conservation legislation as well as Executive Order 13423. The LCC guidance and materials assume discount rates and energy price projections determined

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

Issues in the selection of the LMFBR steam cycle  

SciTech Connect

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

322

Issues in the selection of the LMFBR steam cycle  

SciTech Connect

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

323

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

324

Water Intensity Assessment of Shale Gas Resources in the Wattenberg Field in Northeastern Colorado  

Science Journals Connector (OSTI)

Water Intensity Assessment of Shale Gas Resources in the Wattenberg Field in Northeastern Colorado ... Efficient use of water, particularly in the western U.S., is an increasingly important aspect of many activities including agriculture, urban, and industry. ...

Stephen Goodwin; Ken Carlson; Ken Knox; Caleb Douglas; Luke Rein

2014-04-21T23:59:59.000Z

325

E-Print Network 3.0 - african water resource Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

WWW-YES 2009: Urban waters: resource or risks? 2-5 June 2009 Summary: Resources in Africa. African Water Development Report. hal-00591650,version1-9May2011 12;Potentials......

326

Power Plant Cycling Costs  

NLE Websites -- All DOE Office Websites (Extended Search)

Power Plant Cycling Costs Power Plant Cycling Costs April 2012 N. Kumar, P. Besuner, S. Lefton, D. Agan, and D. Hilleman Intertek APTECH Sunnyvale, California NREL Technical Monitor: Debra Lew Subcontract Report NREL/SR-5500-55433 July 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Power Plant Cycling Costs April 2012 N. Kumar, P. Besuner, S. Lefton, D. Agan, and D. Hilleman Intertek APTECH Sunnyvale, California NREL Technical Monitor: Debra Lew Prepared under Subcontract No. NFT-1-11325-01

327

Overview of URBAN 2000: A Multiscale Field Study of Dispersion through an Urban Environment  

Science Journals Connector (OSTI)

A major urban tracer and meteorological field campaign (URBAN 2000) was conducted in Salt Lake City, Utah, during October 2000. Sponsored by the U.S. Department of Energy's (DOE's) Chemical and Biological National Security Program, the month-long ...

K. J. Allwine; J. H. Shinn; G. E. Streit; K. L. Clawson; M. Brown

2002-04-01T23:59:59.000Z

328

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

329

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

330

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

331

Water Related Energy Use in Households and Cities - an Australian  

NLE Websites -- All DOE Office Websites (Extended Search)

Water Related Energy Use in Households and Cities - an Australian Water Related Energy Use in Households and Cities - an Australian Perspective Speaker(s): Steven Kenway Date: May 12, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Anita Estner James McMahon This presentation covers the content of recent journal papers and reports focused on the water-energy nexus and the related theory of urban metabolism. This includes (i) a review of the water-energy nexus focused on cities (ii) quantifying water-related energy in cities (iii) modeling household water-related energy use including key factors, sensitivity and uncertainty analysis, and (iv) relevance and implications of the urban metabolism theoretical framework. Steven's work focuses on understanding the indirect connections between urban water management, energy use and

332

Parcel delivery and urban logistics-changes in urban courier, express and parcel services: the French (DUCRET, Raphalle; DELAITRE, Loc)  

E-Print Network (OSTI)

Parcel delivery and urban logistics- changes in urban courier, express and parcel services PARCEL DELIVERY AND URBAN LOGISTICS- CHANGES IN URBAN COURIER, EXPRESS AND PARCEL SERVICES: THE FRENCH new logistic organisations. The purpose of this paper is to give an updated overview of the urban

Paris-Sud XI, Université de

333

Creative industries urban model: structure and functioning  

E-Print Network (OSTI)

initiate office refurbishment/construction projects and real estate refurbishment/development projects accordingly. In addition, by studying the evolution of land-use transformation displayed by the model, areas not productive to invest are easily... ). Later, their contribution to support urban creativity (Stam and Jeroen et al, 2008; Scott, 2006), facilitate urban regeneration (Pratt, 2009; Evans, 2005), and promote sustainable urban development (Kakiuchi, 2012; Forum for the Future, 2010) is also...

Liu, Helen; Silva, Elisabete A.

2014-01-01T23:59:59.000Z

334

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

335

Deep conservation in urban India and its implications for the design of conservation technologies  

Science Journals Connector (OSTI)

Rapid depletion of fossil fuels and water resources has become an international problem. Urban residential households are among the primary consumers of resources and are deeply affected by resource shortages. Despite the global nature of these problems, ... Keywords: developing world, energy, ict4d, sustainability

Yedendra B. Shrinivasan; Mohit Jain; Deva P. Seetharam; Abhishek Choudhary; Elaine M. Huang; Tawanna Dillahunt; Jennifer Mankoff

2013-04-01T23:59:59.000Z

336

Simulating Urban Environments for Energy Analysis  

E-Print Network (OSTI)

for informing local policy decisions related to solar energysolar energy impacts in urban regions, to enable better real-time control and policy

Weber, Gunther H.

2014-01-01T23:59:59.000Z

337

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

338

Investigation on Life-cycle Cost of Coal-based Synthetic Natural Gas (SNG)  

Science Journals Connector (OSTI)

Abstract Coal-based synthetic natural gas (SNG) is considered to be a promising alternative of clean energy, especially for urban uses, to response to the insufficient supply of natural gas in China, In this paper, life cycle costing is conducted for SNG in three main urban applications: heating boiler use, residential use, and transit bus use, respectively. The results show that the SNG is competitive for residential use, while it is not as cost- effective as expected when used for heating boiler use or transit bus use. Major shortcoming of SNG is from the large environmental emissions in the production stage.

Jun Zhang; Hengchong Li; Siyu Yang; Xiuxi Li; Yu Qian

2014-01-01T23:59:59.000Z

339

mathematical Study program cycle  

E-Print Network (OSTI)

TSW ECTS TSW Fundamentals of statistics 2 2 0 5 150 0 0 0 0 0 5 150 Probability 4 3 0 10 300 0 0 0 0 0127 mathematical statistics Master's study programms #12;128 #12;· Study program cycle: Second Statistics. In Slovenian: magister matematicne statistike (masculine), magistrica matematicne statistike

Â?umer, Slobodan

340

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

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

Federal Energy Management Program: Life Cycle Cost Analysis for Sustainable  

NLE Websites -- All DOE Office Websites (Extended Search)

Life Cycle Cost Analysis for Sustainable Buildings Life Cycle Cost Analysis for Sustainable Buildings 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. Federal Requirements Life cycle cost (LCC) rules are promulgated in 10 CFR 436 A, Life Cycle Cost Methodology and Procedures and conforms to requirements in the National Energy Conservation Policy Act and subsequent energy conservation legislation as well as Executive Order 13423. The LCC guidance and materials provided here assume discount rates and energy price projections (TXT 17 KB) determined annually by FEMP and the Energy Information Administration. Building Life Cycle Cost Software FEMP's Building Life Cycle Cost (BLCC) software can help you calculate life cycle costs, net savings, savings-to-investment ratio, internal rate of return, and payback period for Federal energy and water conservation projects funded by agencies or alternatively financed. BLCC also estimates emissions and emission reductions. An energy escalation rate calculator (EERC) computes an average escalation rate for energy savings performance contracts when payments are based on energy cost savings.

342

Model for Sustainable Urban Design With Expanded Sections on Distributed Energy Resources, February 2004  

Energy.gov (U.S. Department of Energy (DOE))

Document describing a model design for urban development and redevelopment that will reduce urban energy consumption

343

Urban and Industrial Sites Reinvestment Tax Credit Program (Connecticut) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and Industrial Sites Reinvestment Tax Credit Program and Industrial Sites Reinvestment Tax Credit Program (Connecticut) Urban and Industrial Sites Reinvestment Tax Credit Program (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Connecticut Program Type Corporate Tax Incentive Provider Department of Economic and Community Development

344

Advanced Fuel Cycle Program  

NLE Websites -- All DOE Office Websites (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...

345

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

SciTech Connect

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

346

GIZ Sourcebook Module 5h: Urban Transport and Energy Efficiency...  

Open Energy Info (EERE)

h: Urban Transport and Energy Efficiency Jump to: navigation, search Tool Summary LAUNCH TOOL Name: GIZ Sourcebook Module 5h: Urban Transport and Energy Efficiency AgencyCompany...

347

GIZ Sourcebook Module 5f: Adapting Urban Transport to Climate...  

Open Energy Info (EERE)

f: Adapting Urban Transport to Climate Change Jump to: navigation, search Tool Summary LAUNCH TOOL Name: GIZ Sourcebook Module 5f: Adapting Urban Transport to Climate Change...

348

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 -...

349

Comparative Analysis of Urban Atmospheric Aerosol by Particle...  

NLE Websites -- All DOE Office Websites (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...

350

Core Holes At Long Valley Caldera Geothermal Area (Urban, Et...  

Open Energy Info (EERE)

Urban, Et Al., 1987) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Core Holes At Long Valley Caldera Geothermal Area (Urban, Et Al., 1987)...

351

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...

352

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...

353

South Africa-Promoting Low Emission Urban Development Strategies...  

Open Energy Info (EERE)

in Emerging Economy Countries (URBAN-LEDS) Jump to: navigation, search Name South Africa-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries...

354

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

355

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

356

Dimensions and approaches for Third World city water security  

Science Journals Connector (OSTI)

...represents a new phase of giant water regulation projects on...production of hydroelectric power had been decided earlier...Gorges project. Urban water demand in China is projected...outside the house, from the car, etc. Pollution of water is naturally growing because...

2003-01-01T23:59:59.000Z

357

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.

358

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

359

Water, water everywhere  

Science Journals Connector (OSTI)

... available water resources, either locally or globally, are by no means exhausted. At present desalination -- the removal of salt from sea water or brackish water -- is very ... or brackish water -- is very expensive, mainly because it consumes so much energy. Desalination provides less than 0.2 per cent of all the water used in the world ...

Philip Ball

2000-01-27T23:59:59.000Z

360

D-Cycle - 4-Differential -Stroke Cycle | Department of Energy  

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

-Stroke Cycle The D-Cycle offers the opportunity to use less fuel and gain more power while being able to be retrofit to an OEM and aftermarket engines deer09conti.pdf...

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

BNL | Carbon Cycle Science  

NLE Websites -- All DOE Office Websites (Extended Search)

The Carbon Cycle Science & Technology Group aims to increase understanding The Carbon Cycle Science & Technology Group aims to increase understanding of the impacts of global change on managed and unmanaged ecosystems and improve knowledge of possible global change mitigation approaches. The group has three main focus areas. FACE Climate Change Experimental Facility Design and Management The CCS&T group is an internationally recognized leader in the development of Free Air CO2 Enrichment (FACE) research facilities. We are interested in the design and management of manipulative experiments that examine the effects of carbon dioxide, ozone, other atmospheric pollutants, temperature and precipitation on natural and managed ecosystems. FACE Plant Physiology and High Throughput Biochemical Phenotyping At FACE facilities we have studied the mechanisms that underlie the

362

Fuel Cycle Subcommittee  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Report to NEAC Report to NEAC Fuel Cycle Subcommittee Meeting of April 23, 2013 Washington D.C. June 13, 2013 Burton Richter (Chair), Margaret Chu, Darleane Hoffman, Raymond Juzaitis, Sekazi K Mtingwa, Ronald P Omberg, Joy L Rempe, Dominique Warin 2 I Introduction and Summary The Fuel Cycle Subcommittee of NEAC met in Washington on April 23, 2013. The meeting focused on issues relating to the NE advanced reactor program (sections II, III, and IV), and on storage and transportation issues (section V) related to a possible interim storage program that is the first step in moving toward a new permanent repository as recommended by the Blue Ribbon Commission (BRC) and discussed in the recent response by DOE to Congress on the BRC report 1 . The agenda is given in

363

USCEA fuel cycle '93  

SciTech Connect

The US Council for Energy Awareness sponsored the Fuel Cycle '93 conference in Dallas, Texas, on March 21-24, 1993. Over 250 participants attended, numerous papers were presented, and several panel discussions were held. The focus of most industry participants remains the formation of USEC and the pending US-Russian HEU agreement. Following are brief summaries of two key papers and the Fuel Market Issues panel discussion.

Not Available

1993-04-01T23:59:59.000Z

364

Phosphate oxygen isotope ratios as a tracer for sources and cycling of phosphate in North San Francisco Bay, California  

E-Print Network (OSTI)

and restoration of these ecosystems. [3] Phosphorus (P) is a required element for life and consequently, its is low relative to input and phosphate is not heavily cycled in the ecosystem, the oxygen isotopic.1029/2005JG000079. 1. Introduction [2] Urban and agricultural runoff are major sources of phosphate to aquatic

Paytan, Adina

365

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

366

MHK Technologies/Open Cycle OTEC | Open Energy Information  

Open Energy Info (EERE)

OTEC OTEC < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Open Cycle OTEC.jpg Technology Profile Primary Organization Ocean Engineering and Energy Systems Technology Resource Click here OTEC Technology Type Click here OTEC - Open Cycle Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description Closed Cycle OTEC In the closed cycle OTEC system warm seawater vaporizes a working fluid such as ammonia flowing through a heat exchanger evaporator The vapor expands at moderate pressures and turns a turbine coupled to a generator that produces electricity The vapor is then condensed in another heat exchanger condenser using cold seawater pumped from the ocean s depths through a cold water pipe The condensed working fluid is pumped back to the evaporator to repeat the cycle The working fluid remains in a

367

American business cycles and innovation  

E-Print Network (OSTI)

introduces the concepts of innovation and invention. The second section discusses the business cycles and highlights general causes of business cycles. The final section details the history of the iron, steel, aluminum, and pharmaceutical industries...

Hood, Michael

2013-02-22T23:59:59.000Z

368

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.

369

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

370

Methodology for Assesment of Urban Water Planning Objectives  

E-Print Network (OSTI)

planning methodology and develop supporting data, develop and evaluate alternative plans, select an alternative, and implement the selected plan. Previous researchers have attempted to improve planning technology by utilizing operations research and systems...

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

371

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

372

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

373

n-step cycle inequalities - Optimization Online  

E-Print Network (OSTI)

also introduced the so-called cycle inequalities (called 1-step cycle inequalities in this ...... combination of the cycle detection strategy of Tarjan [16] and the ...

2014-07-02T23:59:59.000Z

374

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

375

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

376

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

377

Geothermal Life Cycle Calculator  

SciTech Connect

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

378

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

379

Integrating ALWR and ALMR fuel cycles  

SciTech Connect

Recent progress in the design of the Advanced Liquid Metal Reactor (ALMR) and in the development of the pyro-metallurgical processing system (Actinide Recycle System) have the potential to allow the back end of the Light Water Reactor (LWR) fuel cycle to be closed in an economically viable and environmentally preferable way. The design and development progress that makes closing the ALWR fuel cycle (removing the fissionable and fertile material for re-use prior to disposal) the most cost effective and environmentally sound approach are presented. Key factors addressed include: resource extension, a reduction in the risk and cost of waste disposal, and the added proliferation resistance associated with the pyro-metallurgical processing system.

Boardman, C.E.; Wadekamper, D.C. [General Electric Co., San Jose, CA (United States). Nuclear Energy Div.; Ehrman, C.S.; Hess, C.; Ocker, M. [Burns and Roe Co., Oradall, NJ (United States); Thompson, M. [Thompson (Marion), Fremont, CA (United States)

1996-08-01T23:59:59.000Z

380

Urban and Regional Air Quality  

NLE Websites -- All DOE Office Websites (Extended Search)

equipment equipment Urban and Regional Air Quality Research in this area is concerned with regional air quality issues such as: Controlling nitrogen oxides (NOx) and volatile organic compounds, to manage tropospheric ozone pollution. Hazardous air pollutants: using science to base standards on rigorously studied risks. Air quality and climate: how does climate influence air quality at a regional or local level? Current modeling practices often do not capture variations in pollutants such as ozone-they represent a limited sample of the diverse meteorology and human behavior that affect air pollution. Improved modeling of regional air quality will help understand variability, reveal patterns of behavior, and pollutant transport issues. Controlled experiments in lab and field can help validate improved models.

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

Assessment of the type of cycling infrastructure required to attract new  

Open Energy Info (EERE)

Assessment of the type of cycling infrastructure required to attract new Assessment of the type of cycling infrastructure required to attract new cyclists Jump to: navigation, search Tool Summary Name: Assessment of the type of cycling infrastructure required to attract new cyclists Agency/Company /Organization: New Zealand Transport Agency Focus Area: Non-Motorized Transport Topics: Analysis Tools Complexity/Ease of Use: Not Available Website: www.nzta.govt.nz/resources/research/reports/449/ Transport Toolkit Region(s): Australia/North America Related Tools Petroleum Reduction Planning Tool New Videos: Stories of Auto-Rickshaws in India Ethanol Usage in Urban Public Transportation - Presentation of Results ... further results Find Another Tool FIND TRANSPORTATION TOOLS Investigated what type of cycling infrastructure would encourage 'new

382

Hydrogen Cars and Water Vapor  

E-Print Network (OSTI)

. This cycle is currently under way with hydrogen fuel cells. As fuel cell cars are suggested as a solutionHydrogen Cars and Water Vapor D.W.KEITHANDA.E.FARRELL'S POLICY FORUM "Rethinking hydrogen cars" (18 misidentified as "zero-emissions vehicles." Fuel cell vehicles emit water vapor. A global fleet could have

Colorado at Boulder, University of

383

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

384

Thermodynamic analysis of a closed-cycle, solar gas-turbine plant  

Science Journals Connector (OSTI)

Thermodynamic analysis of a closed-cycle, Brayton gas-turbine plant with a heat exchanger powered by the sun has been studied. A Brayton cycle is simpler than a Rankine cycle and has an advantage in places where water is scarce and expensive. A simple expression is derived for calculating the efficiency of the cycle in terms of the compression pressure ratio, the pressure loss coefficient and the ratio of the lower to higher temperature in the cycle with the efficiency of various components. The maximum permissible pressure loss coefficient has also been calculated.

P. Gandhidasan

1993-01-01T23:59:59.000Z

385

Urban Transportation Emission Calculator | Open Energy Information  

Open Energy Info (EERE)

Urban Transportation Emission Calculator Urban Transportation Emission Calculator Jump to: navigation, search Tool Summary Name: Urban Transportation Emission Calculator Agency/Company /Organization: Transport Canada Sector: Energy Focus Area: Transportation Topics: GHG inventory Resource Type: Software/modeling tools User Interface: Website Website: wwwapps.tc.gc.ca/Prog/2/UTEC-CETU/Menu.aspx?lang=eng Cost: Free References: http://wwwapps.tc.gc.ca/Prog/2/UTEC-CETU/Menu.aspx?lang=eng The Urban Transportation Emissions Calculator (UTEC) is a user-friendly tool for estimating annual emissions from personal, commercial, and public transit vehicles. It estimates greenhouse gas (GHG) and criteria air contaminant (CAC) emissions from the operation of vehicles. It also estimates upstream GHG emissions from the production, refining and

386

Home | Buildings Technology & Urban Systems Department  

NLE Websites -- All DOE Office Websites (Extended Search)

Lab Buildings & Urban Systems Buildings Lab Buildings & Urban Systems Buildings Technology & Urban Systems Department Search Search Home About Us Groups Tools & Guides Facilities Publications News Links Contact Us Staff The Building Technology and Urban Systems Department (BTUS) works closely with industry to develop technologies for buildings that increase energy efficiency, and improve the comfort, health, and safety of building occupants. Berkeley Lab Hosts 5 Emerging Leaders During TechWomen 2013 As part of TechWomen 2013, emerging leaders from around the world toured a number of scientific facilities in the Bay Area, including the Advanced Light Source at Berkeley Lab. Pho Read More The Retrocommissioning Sensor Suitcase Brings Energy Efficiency to Small Commercial Buildings The data module communicates wirelessly with the smart pad, which launches

387

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

388

Webinar: Tapping Into Wind in Urban Environments  

Energy.gov (U.S. Department of Energy (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....

389

Understanding Road Usage Patterns in Urban Areas  

E-Print Network (OSTI)

In this paper, we combine the most complete record of daily mobility, based on large-scale mobile phone data, with detailed Geographic Information System (GIS) data, uncovering previously hidden patterns in urban road ...

Wang, Pu

390

Urban Decontamination Experience at Pripyat Ukraine - 13526  

SciTech Connect

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

391

Artificial Immune System based urban traffic control  

E-Print Network (OSTI)

Borrowing ideas from natural immunity, Artificial Immune Systems (AIS) offer a novel approach to solving many diagnosis, optimization and control problems. In the course of this research this paradigm was applied to the problem of optimizing urban...

Negi, Pallav

2007-09-17T23:59:59.000Z

392

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.

393

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

394

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

395

Gotcha: a mobile urban sensing system  

Science Journals Connector (OSTI)

Urban environment has significant impacts on the health of city dwellers. To understand these impacts, city planners have to obtain fine-grained environmental information, however such information is not available with traditional environmental systems. ...

Xiangxiang Xu, Pei Zhang, Lin Zhang

2014-11-01T23:59:59.000Z

396

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

397

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

398

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

399

Rankine bottoming cycle safety analysis. Final report  

SciTech Connect

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

400

Spatial and temporal variations in toxicity in an urban-runoff treatment marsh  

SciTech Connect

Toxicity tests have not been widely used to assess the performance of urban-runoff treatment facilities. In the present study, Ceriodaphnia dubia toxicity tests were used to quantify toxicity of urban runoff at Crandall Creek and the downstream Demonstration Urban Stormwater Treatment (DUST) March in Fremont, California. Acute toxicity, expressed as the median time to lethality (LT50) for C. dubia, was used to compare the relative intensities of toxicity in the system. During or shortly after storm events, horizontal and vertical gradients in LT50 and electrical conductivity were observed, with high correlation between the two parameters. Toxicity diminished as time passed after the storm. The performance of the DUST Marsh as a treatment facility was evaluated for three aspects: detection, dilution, and toxicity removal. The authors found that toxic storm water generated by small- to medium-sized storms was contained in the marsh. Toxicity was greatly reduced upon dilution of storm water with pre-existing marsh water, and mixing of the water column increased the rate of toxicity diminution. Toxicity reduction, above and beyond that attributable to dilution, was evident in the marsh. Results of this study demonstrates the potential use of toxicity assessments as an integral component of marsh design and management.

Katznelson, R.; Jewell, W.T.; Anderson, S.L. [Lawrence Berkeley Lab., CA (United States). Energy and Environment Div.

1995-03-01T23:59:59.000Z

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.


401

Open cycle thermoacoustics  

SciTech Connect

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

402

Water Efficiency  

Energy Savers (EERE)

Wheeler - Water Savers, LLC * fwheeler@watersaversllc.com Topics * Performance contracting analysis * Water industry terms * Federal reduction goals * Water balance * Water...

403

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...

404

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

405

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

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

406

Carbon Cycle 2.0  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Carbon Cycle 2.0 Carbon Cycle 2.0 Pioneering science for sustainable energy solutions Artificial Photosynthesis Energy Storage Combustion Carbon Capture & Storage Developing World Efficiency Photovoltaics Biofuels Energy Analysis Climate Modeling Carbon Cycle 2.0 is... 1. A vision for * a global energy system integrated with the Earth's natural carbon cycles * an interactive Berkeley Lab environment with a shared sense of purpose 2. A program development plan that will allow us to deepen our capabilities and provide more opportunities to have impact 3. An attempt to integrate our basic research with applications using models of technology deployment constraints 4. Set of internal activities aimed at priming the effort

407

Building Life Cycle Cost Programs  

Energy.gov (U.S. Department of Energy (DOE))

The National Institute of Standards and Technology (NIST) developed the Building Life Cycle Cost (BLCC) Program to provide computational support for the analysis of capital investments in buildings.

408

Minimize Boiler Short Cycling Losses  

Energy.gov (U.S. Department of Energy (DOE))

This tip sheet on minimizing boiler short cycling losses provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

409

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

410

SUPERCRITICAL STEAM CYCLE FOR NUCLEAR POWER PLANT  

SciTech Connect

Revolutionary improvement of the nuclear plant safety and economy with light water reactors can be reached with the application of micro-fuel elements (MFE) directly cooled by a supercritical pressure light-water coolant-moderator. There are considerable advantages of the MFE as compared with the traditional fuel rods, such as: Using supercritical and superheated steam considerably increases the thermal efficiency of the Rankine cycle up to 44-45%. Strong negative coolant and void reactivity coefficients with a very short thermal delay time allow the reactor to shutdown quickly in the event of a reactivity or power excursion. Core melting and the creation of corium during severe accidents are impossible. The heat transfer surface area is larger by several orders of magnitude due to the small spherical dimensions of the MFE. The larger heat exchange surface significantly simplifies residual heat removal by natural convection and radiation from the core to a subsequent passive system of heat removal.

Tsiklauri, Georgi V.; Talbert, Robert J.; Schmitt, Bruce E.; Filippov, Gennady A.; Bogojavlensky, Roald G.; Grishanin, Evgeny I.

2005-07-01T23:59:59.000Z

411

Experimental investigation of an advanced adsorption refrigeration cycle  

SciTech Connect

Experimental measurements are made for a silica gel-water advanced absorption refrigeration chiller (1.2-kW [4,095-Btu/h] cooling capacity) to evaluate its performance under different temperature and adsorption/desorption cycle time conditions. This paper describes the operating principle of the chiller, outlines the experimental hardware, and discusses results obtained by varying the cooling and hot water inlet temperatures and adsorption/desorption cycle times, as well as their agreement with the simulated results given by a lumped parameter model. The chiller performance is analyzed in terms of cooling capacity and coefficient of performance (COP). Excellent qualitative agreement was obtained between the experimental data and simulated results. The results showed the advanced three-stage cycle to be particularly well suited for operation with low-grade-temperature waste heat as the driving source, since it worked with small regenerating temperature lifts (heat source-heat sink temperature) of 10 to 30 K.

Saha, B.B.; Kashiwagi, Takao [Tokyo Univ. of Agriculture and Technology (Japan). Mechanical Systems Engineering Dept.

1997-12-31T23:59:59.000Z

412

title Life Cycle Assessment of Electric Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Life Cycle Assessment of Electric Power Systems Life Cycle Assessment of Electric Power Systems journal Annual Review of Environment and Resources volume year month abstract p The application of life cycle assessment LCA to electric power EP technologies is a vibrant research pursuit that is likely to continue as the world seeks ways to meet growing electricity demand with reduced environmental and human health impacts While LCA is an evolving methodology with a number of barriers and challenges to its effective use LCA studies to date have clearly improved our understanding of the life cycle energy GHG emissions air pollutant emissions and water use implications of EP technologies With continued progress LCA offers promise for assessing and comparing EP technologies in an analytically thorough and environmentally holistic manner for more robust deployment

413

Guidelines for makeup water treatment  

SciTech Connect

The EPRI Fossil Plant Cycle Chemistry Program, RP 2712, was developed in recognition of the importance of controlling cycle water and steam purity in attainment of maximized unit availability, reliability and efficiency. This guideline characterizes the state-of-the-art technology for production of cycle makeup water. It is intended to complement other RP 2712 projects in the areas of cycle chemistry guidelines, instrumentation and control, guideline demonstration and verification, and related subject areas. This guideline reviews available technology for and preferred approaches to production of fossil plant cycle makeup from various raw water supplies. Subject areas covered include makeup water source and source characteristics, unit processes comprising makeup treatment systems, guidelines for process selection, resin and membrane selection guidelines, techniques for monitoring performance and cost effectiveness, and waste disposal considerations. The report also identifies additional research activity needed to advance the state-of-the-art for makeup water treatment, results of a utility industry survey and other related topics. 72 refs., 60 figs., 74 tabs.

Cline, D.A. Jr.; Shields, K.J. (Powell (Sheppard T.) Associates, Baltimore, MD (USA))

1990-03-01T23:59:59.000Z

414

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

415

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

416

Development of the Miller cycle for natural gas engines  

SciTech Connect

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

417

13 - Generation IV reactor designs, operation and fuel cycle  

Science Journals Connector (OSTI)

Abstract: This chapter looks at Generation IV nuclear reactors, such as the very high-temperature reactor (VHTR), the supercritical water reactor (SCWR), the molten salt reactor (MSR), the sodium-cooled fast reactor (SFR), the lead-cooled fast reactor (LFR) and the gas-cooled fast reactor (GFR). Reactor designs and fuel cycles are also described.

N. Cerullo; G. Lomonaco

2012-01-01T23:59:59.000Z

418

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

419

Life-Cycle Assessment of Electric Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Life-Cycle Assessment of Electric Power Systems Life-Cycle Assessment of Electric Power Systems Title Life-Cycle Assessment of Electric Power Systems Publication Type Journal Article Year of Publication 2013 Authors Masanet, Eric R., Yuan Chang, Anand R. Gopal, Peter H. Larsen, William R. Morrow, Roger Sathre, Arman Shehabi, and Pei Zhai Journal Annual Review of Environment and Resources Volume 38 Date Published 2013 Keywords electricity, energy policy, environmental analysis, life-cycle impact, life-cycle inventory Abstract The application of life-cycle assessment (LCA) to electric power (EP) technologies is a vibrant research pursuit that is likely to continue as the world seeks ways to meet growing electricity demand with reduced environmental and human health impacts. While LCA is an evolving methodology with a number of barriers and challenges to its effective use, LCA studies to date have clearly improved our understanding of the life-cycle energy, GHG emissions, air pollutant emissions, and water use implications of EP technologies. With continued progress, LCA offers promise for assessing and comparing EP technologies in an analytically-thorough and environmentally-holistic manner for more robust deployment decisions. This article summarizes: (1) major challenges in applying LCA to EP technologies thus far, (2) LCA results to date on the various impacts of EP technologies, and (3) opportunities for improving LCAs as applied to EP technologies moving forward.

420

Solar thermal organic rankine cycle for micro-generation  

Science Journals Connector (OSTI)

The conceptual design of an Organic Rankine Cycle (ORC) driven by solar thermal energy is developed for the decentralized production of electricity of up to 50 kW. Conventional Rankine Cycle uses water as the working fluid whereas ORC uses organic compound as the working fluid and it is particularly suitable for low temperature applications. The ORC and the solar collector will be sized according to the solar flux distribution in the Republic of Yemen for the required power output of 50 kW. This will be a micro power generation system that consists of two cycles the solar thermal cycle that harness solar energy and the power cycle which is the ORC that generates electricity. As for the solar thermal cycle heat transfer fluid (HTF) circulates the cycle while absorbing thermal energy from the sun through a parabolic trough collector and then storing it in a thermal storage to increase system efficiency and maintains system operation during low radiation. The heat is then transferred to the organic fluid in the ORC via a heat exchanger. The organic fluids to be used and analyzed in the ORC are hydrocarbons R600a and R290.

2012-01-01T23:59:59.000Z

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.


421

Improving the efficiency and availability analysis of a modified reheat regenerative Rankine cycle  

SciTech Connect

Reheating in a reheat regenerative steam power cycle increases efficiency by increasing the average temperature of heat reception, but also increases the irreversibility of feed water heaters by raising the temperature of the superheated steam used for the regenerative process. This paper introduces some modifications to the regular reheat regenerative steam power cycle that reduce the irreversibility of the regenerative process. An availability analysis of the modified cycle and the regular reheat regenerative cycle as well as a comparison study between both cycles is done. The results indicate that a gain in energy efficiency of up to 2.5% as the steam generator pressure varies is obtained when applying such modifications at the same conditions of pressure, temperature's number of reheating stages, and feed water heaters. The availability analysis showed that such increase in efficiency is due to the reduction of the irreversibility of the regeneration process of the modified cycle.

Bassily, A.M.

1999-07-01T23:59:59.000Z

422

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

423

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

424

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

425

Life Cycle Asset Management  

Directives, Delegations, and Requirements

(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

426

Natural Gas Combined Cycle  

E-Print Network (OSTI)

The “Coal Ash Corrosion Resistant Materials Testing Program ” is being conducted by B&W at Reliant Energy’s Niles plant in Niles, Ohio. The total estimated cost of $1,864,603 is co-funded by DOE contributing 37.5%, OCDO providing 33.3 % and B&W providing 17%. The remaining 12 % is in-kind contributions by Reliant Energy and tubing suppliers. Materials development is important to the power industry, and to the use of coal. Figure 1 compares the cost of electricity for subcritical and supercritical coal-fired plants with a natural gas combined cycle (NGCC) plant based on an 85 % capacity factor. This shows that at $1.20/MBtu for fuel, coal is competitive with NGCC when gas is at $3.40/MBtu or higher. An 85 % capacity factor is realistic for a coal-fired plant, but NGCC plants are currently only achieving about 60%. This gives coal an advantage if compared on the basis of cost per kW generated per year. When subcritical and supercritical plants are compared,

Dennis K. Mcdonald; Subcritical Coal Plant; Supercritical Coal Plant

427

Biomass Gasification Combined Cycle  

SciTech Connect

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

428

Nuclear fuel cycle information workshop  

SciTech Connect

This overview of the nuclear fuel cycle is divided into three parts. First, is a brief discussion of the basic principles of how nuclear reactors work; second, is a look at the major types of nuclear reactors being used and world-wide nuclear capacity; and third, is an overview of the nuclear fuel cycle and the present industrial capability in the US.

Not Available

1983-01-01T23:59:59.000Z

429

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

430

CMVRTC: Heavy Truck Duty Cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

heavy truck duty cycle (HTDC) project heavy truck duty cycle (HTDC) project OVERVIEW The Heavy Truck Duty Cycle (HTDC) Project was initiated in 2004 and is sponsored by the US Department of Energy's (DOE's) Office of FreedomCar and Vehicle Technologies Program. ORNL designed the research program to generate real-world-based duty cycle data from trucks operating in long-haul operations and was designed to be conducted in three phases: identification of parameters to be collected, instrumentation and pilot testing, identification of a real-world fleet, design of the data collection suite and fleet instrumentation, and data collection, analysis, and development of a duty cycle generation tool (DCGT). ANL logo dana logo michelin logo Schrader logo This type of data will be useful for supporting energy efficiency

431

Fuel cycle cost uncertainty from nuclear fuel cycle comparison  

SciTech Connect

This paper examined the uncertainty in fuel cycle cost (FCC) calculation by considering both model and parameter uncertainty. Four different fuel cycle options were compared in the analysis including the once-through cycle (OT), the DUPIC cycle, the MOX cycle and a closed fuel cycle with fast reactors (FR). The model uncertainty was addressed by using three different FCC modeling approaches with and without the time value of money consideration. The relative ratios of FCC in comparison to OT did not change much by using different modeling approaches. This observation was consistent with the results of the sensitivity study for the discount rate. Two different sets of data with uncertainty range of unit costs were used to address the parameter uncertainty of the FCC calculation. The sensitivity study showed that the dominating contributor to the total variance of FCC is the uranium price. In general, the FCC of OT was found to be the lowest followed by FR, MOX, and DUPIC. But depending on the uranium price, the FR cycle was found to have lower FCC over OT. The reprocessing cost was also found to have a major impact on FCC.

Li, J.; McNelis, D. [Institute for the Environment, University of North Carolina, Chapel Hill (United States); Yim, M.S. [Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (Korea, Republic of)

2013-07-01T23:59:59.000Z

432

Life Cycle environmental Assessment (LCA) of sanitation systems including sewerage: Case of vertical  

E-Print Network (OSTI)

Life 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 the sewer network. It first describes the LCA hypothesis which concerns two types of waste water

Paris-Sud XI, Université de

433

Modeling and Optimization of Membrane Reactors for Carbon Capture in Integrated Gasification Combined Cycle Units  

Science Journals Connector (OSTI)

Modeling and Optimization of Membrane Reactors for Carbon Capture in Integrated Gasification Combined Cycle Units ... This paper investigates the alternative of precombustion capture of carbon dioxide from integrated gasification combined cycle (IGCC) plants using membrane reactors equipped with H2-selective zeolite membranes for the water gas shift reaction. ...

Fernando V. Lima; Prodromos Daoutidis; Michael Tsapatsis; John J. Marano

2012-03-08T23:59:59.000Z

434

Solar hydrogen for urban trucks  

SciTech Connect

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

435

Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis- 2010  

Energy.gov (U.S. Department of Energy (DOE))

Report describes the 2010 edition of energy price indices and discount factors for performing life-cycle cost analyses of energy and water conservation and renewable energy projects in federal facilities.

436

Under Pressure and in Hot Water: Algae Conversion to Fuels and Chemicals  

E-Print Network (OSTI)

March 3rd Under Pressure and in Hot Water: Algae Conversion to Fuels and Chemicals Dr. Phil:50 April 10th (Joint Seminar with EES) Fecal Sludge-Fed Biodiesel Plants: The Next-Generation Urban

Minsker, Barbara S.

437

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

438

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

439

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

440

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

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

High efficiency carbonate fuel cell/turbine hybrid power cycle  

SciTech Connect

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

442

Methodologies for Analyzing Impact of Urbanization on Irrigation Districts  

E-Print Network (OSTI)

The region of Texas along the Mexican border has been experiencing rapid urban growth. This has caused fragmentation of many irrigation districts who are struggling to address the resulting challenges. In this paper, we analyze the growth of urban...

Bonaiti, G.; Fipps, G.

443

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

444

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

445

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

446

IS URBAN LOGISTICS POOLING VIABLE? A MULTISTAKEHOLDER MULTICRITERIA ANALYSIS  

E-Print Network (OSTI)

IS URBAN LOGISTICS POOLING VIABLE? A MULTISTAKEHOLDER MULTICRITERIA ANALYSIS Jesus Gonzalez. Urban consolidation and logistics sharing. III. Multi-stakeholder mutli-criteria methodology. A of application. V. Conclusion. ABSTRACT Collaborative transportation and logistics pooling are relatively new

Boyer, Edmond

447

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.

448

Camera for the invisible : toward a toolkit for urban exploration  

E-Print Network (OSTI)

We are disconnected from our environment. We can't reconnect because we can't even see the Nature within our urban surroundings. Inspired by urban explorers and Nature Awareness traditions, I will develop methodologies and ...

Silver, Jay (Jay S.)

2008-01-01T23:59:59.000Z

449

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

450

IVAAIU urban instrument : hyper-complex civic monument for Seoul  

E-Print Network (OSTI)

This thesis aims to plan and design an urban monument in Seoul, Republic of Korea, that can reflect the political movement of the city at the urban area which has been historically associated with political representations ...

Lee, Donguk

2013-01-01T23:59:59.000Z

451

Stadium development and urban renewal : a look at Washington, DC  

E-Print Network (OSTI)

This thesis investigates the factors, related to urban stadium development, that act as a catalyst for subsequent local urban renewal. Over the recent decades there has been substantial debate related to stadium or arena ...

Rizzo, James W. (James Watson)

2008-01-01T23:59:59.000Z

452

Lakeside: Merging Urban Design with Scientific Analysis  

SciTech Connect

Researchers at the U.S. Department of Energy's Argonne National Laboratory and the University of Chicago are developing tools that merge urban design with scientific analysis to improve the decision-making process associated with large-scale urban developments. One such tool, called LakeSim, has been prototyped with an initial focus on consumer-driven energy and transportation demand, through a partnership with the Chicago-based architectural and engineering design firm Skidmore, Owings & Merrill, Clean Energy Trust and developer McCaffery Interests. LakeSim began with the need to answer practical questions about urban design and planning, requiring a better understanding about the long-term impact of design decisions on energy and transportation demand for a 600-acre development project on Chicago's South Side - the Chicago Lakeside Development project.

Guzowski, Leah; Catlett, Charlie; Woodbury, Ed

2014-10-08T23:59:59.000Z

453

Lakeside: Merging Urban Design with Scientific Analysis  

ScienceCinema (OSTI)

Researchers at the U.S. Department of Energy's Argonne National Laboratory and the University of Chicago are developing tools that merge urban design with scientific analysis to improve the decision-making process associated with large-scale urban developments. One such tool, called LakeSim, has been prototyped with an initial focus on consumer-driven energy and transportation demand, through a partnership with the Chicago-based architectural and engineering design firm Skidmore, Owings & Merrill, Clean Energy Trust and developer McCaffery Interests. LakeSim began with the need to answer practical questions about urban design and planning, requiring a better understanding about the long-term impact of design decisions on energy and transportation demand for a 600-acre development project on Chicago's South Side - the Chicago Lakeside Development project.

Guzowski, Leah; Catlett, Charlie; Woodbury, Ed

2014-11-18T23:59:59.000Z

454

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

455

The Fate of North Atlantic Subtropical Mode Water in the FLAME Model  

Science Journals Connector (OSTI)

North Atlantic Subtropical Mode Water, also known as Eighteen Degree Water (EDW), has the potential to store heat anomalies through its seasonal cycle: the water mass is in contact with the atmosphere in winter, isolated from the surface for the ...

S. F. Gary; M. S. Lozier; Y.-O. Kwon; J. J. Park

2014-05-01T23:59:59.000Z

456

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

457

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

458

Lecture plan and speakers *Skinner/Urban  

E-Print Network (OSTI)

:30-8:30 S *Brakocevic 9:15-10:30 *Januszewski 10:45-12.00 lunch Kakde 1:30-2:30 coffee Pilloni 3:00-4:00 Skinner/Urban 4:10-5:10 Excursion 5:30- S Skinner/Urban 9:15-10:15 Januszewski 10:25-11.25 Pilloni 11:35-12.35 end *90minutes/75 · Fabian Januszewski (Karlsruhe Institute of Technology) p-adic Rankin-Selberg convolutions · Mahesh Kakde

Hida, Haruzo

459

Impact of utilizing 3D digital urban models on the design content of urban design plans in US cities  

E-Print Network (OSTI)

Some experts suggest that urban design plans in US cities may lack adequate coverage of the essential design aspects, particularly three-dimensional design aspects of the physical environment. Digital urban models and information technology tools...

Al-Douri, Firas A. Salman

2006-10-30T23:59:59.000Z

460

Sustainable Urbanism : an examination of environmentally responsible neighborhood developments in Europe and lessons for sustainable urban planning  

E-Print Network (OSTI)

The emergence of the sustainable development concept at the end of the 1980s triggered the intensification of the environmental sustainability discourse in urban design and planning. The vision of sustainable urbanism ...

Kasioumi, Eirini

2010-01-01T23:59:59.000Z

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.


461

Motivations for Conserving Urban Biodiversity DONALD C. DEARBORN  

E-Print Network (OSTI)

Essay Motivations for Conserving Urban Biodiversity DONALD C. DEARBORN AND SALIT KARK Department, the fundamental value of conserving urban biodiversity re- mains controversial. How much of a fixed budget should seven possible motivations for urban biodiversity conservation: preserving local biodiversity, creating

Kark, Salit

462

URBAN LOGISTICS BY RAIL AND WATERWAYS IN FRANCE AND JAPAN  

E-Print Network (OSTI)

1 URBAN LOGISTICS BY RAIL AND WATERWAYS IN FRANCE AND JAPAN Main author: Diana Diziain, Greater-Est, France KEYWORDS: rail, waterways, intermodal logistics, urban freight, city logistics ABSTRACT been carried out on intermodal logistic policies at national scales. However, in urban areas, the use

Paris-Sud XI, Université de

463

Appendix H Colorado Statewide Forest Resource Assessment Urban Influence Areas  

E-Print Network (OSTI)

1 Appendix H ­ Colorado Statewide Forest Resource Assessment Urban Influence Areas Overview of the Urban and Community Forestry Layer 1. Start with Night Lights data and clip to Colorado Boundary code = 11020). a. Create a new shapefile called UrbanInfluenceAreas_withCapacity.shp. b. Add fields

464

A Dataset and Taxonomy for Urban Sound Research  

Science Journals Connector (OSTI)

Automatic urban sound classification is a growing area of research with applications in multimedia retrieval and urban informatics. In this paper we identify two main barriers to research in this area - the lack of a common taxonomy and the scarceness ... Keywords: classification, dataset, taxonomy, urban sound

Justin Salamon, Christopher Jacoby, Juan Pablo Bello

2014-11-01T23:59:59.000Z

465

Small solar (thermal) water-pumping system  

SciTech Connect

A small solar (thermal) water pump phototype was tested. The pump works on an organic Rankine cycle using refrigerant R113. The design of the pump is described. Detailed temperature and pressure measurements of the working fluid for different operating conditions are performed. The behaviour of the cycle is analysed to get a clear picture of the thermodynamic process. Power-characteristic curves are obtained by a systematic variation of water temperature, pumping head and heat input. 10 refs., 13 figs., 2 tabs.

Spindler, K.; Hahne, E. [Universitaet Stuttgart (Germany)] [Universitaet Stuttgart (Germany); Chandwalker, K. [Stiletto Engineers, Hyderabad (India)] [Stiletto Engineers, Hyderabad (India)

1996-07-01T23:59:59.000Z

466

Limit cycle analysis of nuclear coupled density-wave oscillations  

SciTech Connect

Recent tests at commercial boiling water reactors (BWRs) have demonstrated the existence of limit cycles for nuclear coupled density-wave oscillations (NCDWOs) at off-normal conditions. This paper presents the application of a simplified nonlinear BWR core model to determine the potential magnitude and limiting mechanisms of severe NCDWOs, and an approximate determination of the limit cycle using singular perturbation analysis. In this model, the point kinetics equation with infinite-delayed approximation and linear reactivity feedback to both fuel temperature and coolant density is used. This model correctly predicts the magnitude of the Vermont Yankee power oscillations.

Ward, M.E.; Lee, J.C.

1986-01-01T23:59:59.000Z

467

CMVRTC: Medium Truck Duty Cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

medium truck duty cycle (MTdc) project medium truck duty cycle (MTdc) project OVERVIEW The Medium Truck Duty Cycle (MTDC) project involves efforts to collect, analyze and archive data related to medium-truck operations in real-world driving environments. Such data and information will be useful to support technology evaluation efforts and to provide a means of accounting for real-world driving performance within medium-class truck analyses. The project involves private industry partners from various truck vocations. The MTDC project is unique in that there currently does not exist a national database of characteristic duty cycles for medium trucks. This project involves the collection of data from multiple vocations (four vocations) and multiple vehicles within these vocations (three vehicles per

468

Minimize Boiler Short Cycling Losses  

SciTech Connect

This revised ITP tip sheet on minimizing boiler short cycling losses provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

469

THE TRANSPOSED CRITICAL TEMPERATURE RANKINE THERMODYNAMIC CYCLE  

E-Print Network (OSTI)

Combined Diesel-Organic Rankine Cycle Power Plant", in25OoC) closed simple organic Rankine cycle geothermal powerthe simple closed organic Rankine cycle for a given set of

Pope, William L.

2012-01-01T23:59:59.000Z

470

Sustainability Features of Nuclear Fuel Cycle Options  

E-Print Network (OSTI)

The nuclear fuel cycle is the series of stages that nuclear fuel materials go through in a cradle to grave framework. The Once Through Cycle (OTC) is the current fuel cycle implemented in the United States; in which an ...

Passerini, Stefano

471

The value of agricultural water rights in agricultural properties in the path of development  

E-Print Network (OSTI)

Q19 R3 Keywords: Water rights Hedonic price method Urbanization Farmland prices Elasticity Marginal input in every sector of the econ- omy. In the U.S. Southwest, water demand has changed in response, Arizona. To do this we use hedonic pricing to explore the impact of water rights on property values in 151

472

University of Arizona Geography and Regional Development 696O Adaptation and Resilience in Water Resources Systems  

E-Print Network (OSTI)

, urban growth, energy demand, and global food trade alter water in coupled human-natural systemsUniversity of Arizona Geography and Regional Development 696O 1 Adaptation and Resilience in Water syllabus] As we enter an era of drastically heightened pressure on water resources combined with greater

Scott, Christopher

473

DECEMBER 2008 WATER QUALITY AND LAND USE: IMPLICATIONS FOR REGULATION AND  

E-Print Network (OSTI)

DECEMBER 2008 WATER QUALITY AND LAND USE: IMPLICATIONS FOR REGULATION AND URBAN PLANNING WRRI Technical Completion Report No. 346 Gwendolyn A. Aldrich Janie Chermak Jennifer A. Thacher NEW MEXICO WATER-0001 Telephone (505) 646-4337 FAX (505) 646-6418 email: nmwrri@wrri.nmsu.edu #12;WATER QUALITY AND LAND USE

Johnson, Eric E.

474

ForPeerReview Variable Irrigation District Action in Water Trading  

E-Print Network (OSTI)

ForPeerReview Variable Irrigation District Action in Water Trading Journal: Journal of the AmericanPeerReview Variable Irrigation District Action in Water Trading Narishwar Ghimire and Ronald C. Griffin1 Abstract diverse in terms of their water right endowments, acreages served, magnitude of local16 urbanization

Griffin, Ronald

475

Tidal-powered water sampler  

SciTech Connect

A tidal-powered compositing water sampler has been designed to operate over a wide range of tides. It can sample water over long periods without attention and can be made from inexpensive hardware components and two check valves. The working principle of the sampler is to use the reduction of pressure by the falling tide and the stored pressure from the previous high tide to pump water into a collection bottle. The sampler can produce a constant volume of water per tidal cycle over a tidal range of 2 to 4 m.

Hayes, D.W.; Harris, S.D.; Stoughton, R.S.

1980-07-01T23:59:59.000Z

476

Arizona has relatively limited water resources due to its arid climate and limited surface water.  

E-Print Network (OSTI)

for approximately 20% of non-agricultural water consumption in the United States. The numbers for AZ are slightly lower, with total industrial uses of water making up around 17% of non agricultural water consumption in attempting to characterize technologies is life cycle assessment (LCA). It can be used to attempt

Fay, Noah

477

Performance improvement options for the supercritical carbon dioxide brayton cycle.  

SciTech Connect

The supercritical carbon dioxide (S-CO{sub 2}) Brayton cycle is under development at Argonne National Laboratory as an advanced power conversion technology for Sodium-Cooled Fast Reactors (SFRs) as well as other Generation IV advanced reactors as an alternative to the traditional Rankine steam cycle. For SFRs, the S-CO{sub 2} Brayton cycle eliminates the need to consider sodium-water reactions in the licensing and safety evaluation, reduces the capital cost of the SFR plant, and increases the SFR plant efficiency. Even though the S-CO{sub 2} cycle has been under development for some time and optimal sets of operating parameters have been determined, those earlier development and optimization studies have largely been directed at applications to other systems such as gas-cooled reactors which have higher operating temperatures than SFRs. In addition, little analysis has been carried out to investigate cycle configurations deviating from the selected 'recompression' S-CO{sub 2} cycle configuration. In this work, several possible ways to improve S-CO{sub 2} cycle performance for SFR applications have been identified and analyzed. One set of options incorporates optimization approaches investigated previously, such as variations in the maximum and minimum cycle pressure and minimum cycle temperature, as well as a tradeoff between the component sizes and the cycle performance. In addition, the present investigation also covers options which have received little or no attention in the previous studies. Specific options include a 'multiple-recompression' cycle configuration, intercooling and reheating, as well as liquid-phase CO{sub 2} compression (pumping) either by CO{sub 2} condensation or by a direct transition from the supercritical to the liquid phase. Some of the options considered did not improve the cycle efficiency as could be anticipated beforehand. Those options include: a double recompression cycle, intercooling between the compressor stages, and reheating between the turbine stages. Analyses carried out as part of the current investigation confirm the possibilities of improving the cycle efficiency that have been identified in previous investigations. The options in this group include: increasing the heat exchanger and turbomachinery sizes, raising of the cycle high end pressure (although the improvement potential of this option is very limited), and optimization of the low end temperature and/or pressure to operate as close to the (pseudo) critical point as possible. Analyses carried out for the present investigation show that significant cycle performance improvement can sometimes be realized if the cycle operates below the critical temperature at its low end. Such operation, however, requires the availability of a heat sink with a temperature lower than 30 C for which applicability of this configuration is dependent upon the climate conditions where the plant is constructed (i.e., potential performance improvements are site specific). Overall, it is shown that the S-CO{sub 2} Brayton cycle efficiency can potentially be increased to 45 %, if a low temperature heat sink is available and incorporation of larger components (e.g.., heat exchangers or turbomachinery) having greater component efficiencies does not significantly increase the overall plant cost.

Moisseytsev, A.; Sienicki, J. J.; Nuclear Engineering Division

2008-07-17T23:59:59.000Z

478

Exergy Analysis of Stirling Cycle Cryogenerator  

Science Journals Connector (OSTI)

Exergy or the available work energy function is ... various systems. This paper attempts to present exergy analysis for Stirling cycle cryogenerator. The cycle...

K. G. Narayankhedkar

1998-01-01T23:59:59.000Z

479

Improvement of modelling capabilities for assessing urban contamination : The EMRAS Urban Remediation Working Group.  

SciTech Connect

The Urban Remediation Working Group of the International Atomic Energy Agency's Environmental Modeling for Radiation Safety (EMRAS) programme was established to improve modeling and assessment capabilities for radioactively contaminated urban situations, including the effects of countermeasures. An example of the Working Group's activities is an exercise based on Chernobyl fallout data in Ukraine, which has provided an opportunity to compare predictions among several models and with available measurements, to discuss reasons for discrepancies, and to identify areas where additional information would be helpful.

Thiessen, K. M.; Batandjieva, B.; Andersson, K. G.; Arkhipov, A.; Charnock, T. W.; Gallay, F.; Gaschak, S.; Golikov, V.; Hwang, W. T.; Kaiser, J. C.; Kamboj, S.; Steiner, M.; Tomas, J.; Trifunovic, D.; Yu, C.; Ziemer, R. L.; Zlobenko, B.; Environmental Science Division; SENES Oak Ridge; IAEA; Riso National Lab.; Chernobyl Center for Nuclear Safety; Health Protection Agency; IRSN; Inst. of Radiation Hygene of the Ministry of Public Health, Russian Federation; KAERI, Republic of Korea; GSF, Germany; BfS, Germany; CPHR, Cuba; State Office for Radiation Protection, Croatia; AECL, Canada; National Academy of Science, Ukraine

2008-01-01T23:59:59.000Z

480

Lake Charles Urbanized Area MTP 2034  

E-Print Network (OSTI)

................................................................................................................................ 2-9 National Highway System ........................................................................................................................... 2-10 City of Lake Charles Transit System Routes... transportation. The Lake Charles Urbanized Area is located wholly within Calcasieu Parish and includes the cities of Lake Charles, Sulphur, and Westlake, as well as the unincorporated areas known as Moss Bluff, and Carlyss (see map on following page...

Lake Charles Urbanized Area Metropolitan Planning Organization

2009-08-04T23:59:59.000Z

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.
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481

Phonological Assimilation in Urban Jordanian Arabic  

E-Print Network (OSTI)

This study reports patterns of phonological assimilation in consonant clusters in Urban Jordanian Arabic (UJA). We examine all possible C1C2 combinations across a word boundary as well as the concatenations of consonant-final prefixes //in/ and //il...

Zuraiq, Wael; Zhang, Jie

2006-01-01T23:59:59.000Z

482

Study of Pollutant Dispersion in Urban Environments  

E-Print Network (OSTI)

power plant using coal releases great amounts of harmful gases to produce the electric energy head: Study of pollutant dispersion in urban environments #12;Abstract Computational simulations can mechanics with the use of computer models and simulations. In this study the simulations of the complex

Allen, Gabrielle

483

GNSS Signal Acquisition in Harsh Urban Environments  

E-Print Network (OSTI)

spectrum by allowing cognitive devices to coexist with licensed users, given that the interference caused the effect of radio signal propagation conditions, interfering nodes spatial distribution, and other relevant- work interference, urban radio propagation channel I. INTRODUCTION Recently, the widespread use

Vellekoop, Michel

484

Space–time correlations in urban sprawl  

Science Journals Connector (OSTI)

...neighbouring cities, i.e. does the migration of people from...following the analogy with physics presented in [23]. However...X , and YM Ioannides. 2004 Handbook of regional and urban economics...V Loreto. 2009 Statistical physics of social dynamics. Rev...

2014-01-01T23:59:59.000Z

485

Philip Ashton Assistant Professor, Urban Planning & Policy  

E-Print Network (OSTI)

Development Finance Analysis; Spring 2006, Summer 2006, Fall 2006; Spring 2007. Pratt Institute, Graduate 1999, Summer 2000, Spring 2002. Publications Refereed Journal Articles 2007 Ashton, Philip. "Advantage to Journal of Planning Education and Research, July 2007. The financialization of urban policy

Illinois at Chicago, University of

486

http://uex.sagepub.com/ Urban Education  

E-Print Network (OSTI)

of this article can be found at: DOI: 10.1177/0042085909352143 2010 45: 58Urban Education Carole R. Beal, Niall M Solving by High School English Language Learners Carole R. Beal,1 Niall M.Adams,2 and Paul R. Cohen1. Beal, Cognitive Science Program, University of Arizona,Tucson AZ 85721 Email: crbeal

487

South Africa-Promoting Low Emission Urban Development Strategies in  

Open Energy Info (EERE)

South Africa-Promoting Low Emission Urban Development Strategies in South Africa-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Jump to: navigation, search Name South Africa-Promoting Low Emission Urban Development Strategies in Emerging Economy Countries (URBAN-LEDS) Agency/Company /Organization ICLEI - Local Governments for Sustainability, European Commission, UN Habitat Sector Climate, Energy Focus Area Renewable Energy, Buildings, Buildings - Commercial, Buildings - Residential, People and Policy Topics Adaptation, Background analysis, Baseline projection, Low emission development planning, -LEDS, Market analysis, Pathways analysis, Policies/deployment programs Website http://www.iclei.org/fileadmin Program Start 2012 Program End 2015 Country South Africa Southern Africa

488

Sustainable Urban Development Priorities - Development of a Rapid  

Open Energy Info (EERE)

Sustainable Urban Development Priorities - Development of a Rapid Sustainable Urban Development Priorities - Development of a Rapid Assessment Tool for Urban Mobility in Cities with Data Scarcity Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Sustainable Urban Development Priorities - Development of a Rapid Assessment Tool for Urban Mobility in Cities with Data Scarcity Agency/Company /Organization: Clean Air Asia, The Institute for Transportation and Development Policy (ITDP) Partner: UN Habitat Sector: Land Focus Area: Greenhouse Gas, People and Policy, Transportation Topics: Background analysis, Baseline projection, Co-benefits assessment, - Environmental and Biodiversity, GHG inventory, Low emission development planning, -LEDS, Policies/deployment programs Website: cleanairinitiative.org/portal/node/7870

489

Use and recovery of ammonia in power plant cycles  

SciTech Connect

The paper presents some practical and theoretical aspects of the use of ammonia in power plant water/steam cycles. The plants considered are fully automated units with once-through boilers, which operate under complex conditions and are subject to frequent starts and load changes. The boilers are chemically conditioned with combined oxygen ammonia treatment and the condensate polishing plant is only operated during start-up, in the event of a condenser leak or to remove excess ammonia. The paper also covers the recovery of ammonia from the condensate polishing plant waste regenerants and reuse for conditioning the feedwater. In particular, the paper deals with the following points: theoretical analysis of the chemical equilibrium of ammonia and carbon dioxide in water, including calculation of the concentrations from the parameters normally measured, such as conductivities and pH; equipment for monitoring and controlling the amount of ammonia fed to the water/steam cycle, including the optimum positioning of the sampling and feed-points, the parameters suitable for feed control and their temperature dependence; the partial pressure and distribution coefficient of ammonia; the consumption and losses of ammonia through the water/steam cycle during operation; the recovery of ammonia from condensate polishing plant waste regenerants by steam stripping. The paper should be of interest to both planning engineers and plant operators.

Pflug, H.D.; Bettenworth, H.J.; Syring, H.A. [Preussen Elektra AG, Hanover (Germany)

1995-01-01T23:59:59.000Z

490

Life cycle assessment in support of sustainable transportation  

Science Journals Connector (OSTI)

In our rapidly urbanizing world, sustainable transportation presents a major challenge. Transportation decisions have considerable direct impacts on urban society, both positive and negative, for example through changes in transit times and economic productivity, urban connectivity, tailpipe emissions and attendant air quality concerns, traffic accidents, and noise pollution. Much research has been dedicated to quantifying these direct impacts for various transportation modes. Transportation planning decisions also result in a variety of indirect environmental and human health impacts, a portion of which can accrue outside of the transit service area and so outside of the local decision-making process. Integrated modeling of direct and indirect impacts over the life cycle of different transportation modes provides decision support that is more comprehensive and less prone to triggering unintended consequences than a sole focus on direct tailpipe emissions. The recent work of Chester et al (2013) in this journal makes important contributions to this research by examining the environmental implications of introducing bus rapid transit and light rail in Los Angeles using life cycle assessment (LCA). Transport in the LA region is dominated by automobile trips, and the authors show that potential shifts to either bus or train modes would reduce energy use and emissions of criteria air pollutants, on an average passenger mile travelled basis. This work compares not just the use of each vehicle, but also upstream impacts from its manufacturing and maintenance, as well as the construction and maintenance of the entire infrastructure required for each mode. Previous work by the lead author (Chester and Horvath 2009), has shown that these non-operational sources and largely non-local can dominate life cycle impacts from transportation, again on an average (or attributional) basis, for example increasing rail-related GHG emissions by >150% over just operational emissions. While average results are valuable in comparing transport modes generally, they are less representative of local planning decisions, where the focus is on understanding the consequences of new infrastructure and how it might affect traffic, community impacts, and environmental aspects going forward. Chester et al (2013) also present their results using consequential LCA, which provides more detailed insights about the marginal effects of the specific rapid bus and light rail lines under study. The trade-offs between the additional resources required to install the public transit infrastructure (the 'resource debt') and the environmental advantages during the operation of these modes can be considered explicitly in terms of environmental impact payback periods, which vary with the type of environmental impact being considered. For example, bus rapid transit incurs a relatively small carbon debt associated with the GHG emissions of manufacturing new buses and installing transit infrastructure and pays this debt off almost immediately, while it takes half a century for the light rail line to pay off the 'smog debt' of its required infrastructure. This payback period approach, ubiquitous in life cycle costing, has been useful for communicating the magnitude of unintended environmental consequences from other resource and land management decisions, e.g., the release of soil carbon from land conversion to bioenergy crops (Fargione et al 2008), and will likely grow in prevalence as consequential LCA is used for decision support. The locations of projected emissions is just as important to decision-making as their magnitudes, as policy-making bodies seek to understand effects in their jurisdictions; however, life cycle impact assessment methods typically aggregate results by impact category rather than by source or sink location. Chester et al (2013) address this issue by providing both local (within Los Angeles) and total emissions results, with accompanying local-only payback periods. Much more challenging is the geographic mapping of impacts that these emissions wi

Matthew J Eckelman

2013-01-01T23:59:59.000Z

491

Diurnal to annual variations in the atmospheric water cycle  

E-Print Network (OSTI)

global numerical weather prediction models. Investigationsknown problem in numerical weather prediction models, wheremodel. Preprint, 11 th AMS Conference on Numerical Weather Prediction,

Ruane, Alexander C.

2007-01-01T23:59:59.000Z

492

Diurnal to annual variations in the atmospheric water cycle  

E-Print Network (OSTI)

2002 (Hyodae Seo, Odelle Hadley, Guillaume Mauger, Hey-Jinexample, the low-frequency Hadley circulation is driven bydescending portions of the Hadley circulation lead to large-

Ruane, Alexander C

2007-01-01T23:59:59.000Z

493

Cycle simulation of the low-temperature triple-effect absorption chiller with vapor compression unit  

SciTech Connect

The construction of a triple-effect absorption chiller machine using the lithium bromide-water solution as a working fluid is strongly limited by corrosion problems caused by the high generator temperature. In this work, three new cycles having the additional vapor compression units were suggested in order to lower the generator temperature of a triple-effect absorption chiller. Each new cycle has one compressor located at the different position which was used to elevate the pressure of the refrigerant vapor. Computer simulations were carried out in order to examine both the basic triple-effect cycle and three new cycles. All types of triple-effect absorption chiller cycles were found to be able to lower the temperature of high-temperature generator to the more favorable operation range. The COPs of three cycles calculated by considering the additional compressor works showed a small level of decrease or increase compared with that of the basic triple-effect cycle. Consequently, a low-temperature triple-effect absorption chiller can be possibly constructed by adapting one of three new cycles. A great advantage of these new cycles over the basic one is that the conventionally used lithium bromide-water solution can be successfully used as a working fluid without the danger of corrosion.

Kim, J.S.; Lee, H.

1999-07-01T23:59:59.000Z

494

Promoting Low Emission Urban Development Strategies in Emerging Economy  

Open Energy Info (EERE)

Promoting Low Emission Urban Development Strategies in Emerging Economy Promoting Low Emission Urban Development Strategies in Emerging Economy Countries Project (URBAN LEDS) Jump to: navigation, search Name Promoting Low Emission Urban Development Strategies in Emerging Economy Countries Project (URBAN LEDS) Agency/Company /Organization ICLEI - Local Governments for Sustainability Sector Climate, Energy Focus Area Renewable Energy, Energy Efficiency Topics Low emission development planning Resource Type Lessons learned/best practices, Training materials Website http://www.iclei.org/ References ICLEI - Local Governments for Sustainability[1] ICLEI acts as the implementing partner of UN-HABITAT in the "Promoting Low Emission Urban Development Strategies in Emerging Economy Countries Project (URBAN LEDS)", that is funded by the European Commission and launched on 9

495

Life-cycle Environmental Inventory of Passenger Transportation in the United States  

E-Print Network (OSTI)

Van)  Automobile (Motorcycle / Moped)  Electric Urban Bus Van)  Automobile (Motorcycle / Moped)  Electric Urban Bus Van)  Automobile (Motorcycle / Moped)  Electric Urban Bus 

Chester, Mikhail V

2008-01-01T23:59:59.000Z

496

Life Cycle Analysis: Integrated Gasification Combined Cycle (IGCC) Power Plant  

NLE Websites -- All DOE Office Websites (Extended Search)

Life Cycle Analysis: Integrated Life Cycle Analysis: Integrated Gasification Combined Cycle (IGCC) Power Plant Revision 2, March 2012 DOE/NETL-2012/1551 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or

497

Most terrestrial vertebrates are able to replace water lost to the environment by drinking water. In amniotes, drinking is  

E-Print Network (OSTI)

of the efficiency of water transport, such as volume per kinematic cycle) may be randomly variable with littleMost terrestrial vertebrates are able to replace water lost to the environment by drinking water, not drinking, because water, unlike food, is physically uniform (at least between 1 and 99 °C). Modifications

Behe, Michael J.

498

Estimating Water Consumption of Potential Natural Vegetation on Global Dry Lands: Building an LCA Framework for Green Water Flows  

Science Journals Connector (OSTI)

Estimating Water Consumption of Potential Natural Vegetation on Global Dry Lands: Building an LCA Framework for Green Water Flows ... This study aimed to provide a framework for assessing direct soil-water consumption, also termed green water in the literature, in life cycle assessment (LCA). ... This was an issue that LCA had not tackled before. ...

Montserrat Núñez; Stephan Pfister; Philippe Roux; Assumpció Antón

2013-10-04T23:59:59.000Z

499

Development of the Hybrid Sulfur Thermochemical Cycle  

SciTech Connect

The production of hydrogen via the thermochemical splitting of water is being considered as a primary means for utilizing the heat from advanced nuclear reactors to provide fuel for a hydrogen economy. The Hybrid Sulfur (HyS) Process is one of the baseline candidates identified by the U.S. Department of Energy [1] for this purpose. The HyS Process is a two-step hybrid thermochemical cycle that only involves sulfur, oxygen and hydrogen compounds. Recent work has resulted in an improved process design with a calculated overall thermal efficiency (nuclear heat to hydrogen, higher heating value basis) approaching 50%. Economic analyses indicate that a nuclear hydrogen plant employing the HyS Process in conjunction with an advanced gas-cooled nuclear reactor system can produce hydrogen at competitive prices. Experimental work has begun on the sulfur dioxide depolarized electrolyzer, the major developmental component in the cycle. Proof-of-concept tests have established proton-exchange-membrane cells (a state-of-the-art technology) as a viable approach for conducting this reaction. This is expected to lead to more efficient and economical cell designs than were previously available. Considerable development and scale-up issues remain to be resolved, but the development of a viable commercial-scale HyS Process should be feasible in time to meet the commercialization schedule for Generation IV gas-cooled nuclear reactors.

Summers, William A.; Steimke, John L

2005-09-23T23:59:59.000Z

500

The integral fast reactor fuel cycle  

SciTech Connect

The liquid-metal reactor (LMR) has the potential to extend the uranium resource by a factor of 50 to 100 over current commercial light water reactors (LWRs). In the integral fast reactor (IFR) development program, the entire reactor system - reactor, fuel cycle, and waste process - is being developed and optimized at the same time as a single integral entity. A key feature of the IFR concept is the metallic fuel. The lead irradiation tests on the new U-Pu-Zr metallic fuel in the Experimental Breeder Reactor II have surpassed 185000 MWd/t burnup, and its high burnup capability has now been fully demonstrated. The metallic fuel also allows a radically improved fuel cycle technology. Pyroprocessing, which utilizes high temperatures and molten salt and molten metal solvents, can be advantageously utilized for processing metal fuels because the product is metal suitable for fabrication into new fuel elements. Direct production of a metal product avoids expensive and cumbersome chemical conversion steps that would result from use of the conventional Purex solvent extraction process. The key step in the IFR process is electrorefining, which provides for recovery of the valuable fuel constituents, uranium and plutonium, and for removal of fission products. A notable feature of the IFR process is that the actinide elements accompany plutonium through the process. This results in a major advantage in the high-level waste management.

Chang, Y.I. (Argonne National Lab., IL (United States))

1990-01-01T23:59:59.000Z