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Note: This page contains sample records for the topic "air-volume system economizer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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1

Improved Air Volume Control Logic for VAV Systems  

E-Print Network (OSTI)

In a VAV (variable air volume) system, the set point of the static pressure (usually measured at 213 downstream of the main supply air duct) is maintained by modulating the fan speed or inlet guide vane position. The set point of the static pressure...

Wei, G.; Claridge, D. E.; Sakuri, Y.; M. Liu

2000-01-01T23:59:59.000Z

2

Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis.  

E-Print Network (OSTI)

??The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has… (more)

Kimla, John

2010-01-01T23:59:59.000Z

3

Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis  

E-Print Network (OSTI)

The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has focused on the creation of reset strategies depending on specific system features...

Kimla, John

2010-07-14T23:59:59.000Z

4

Optimal supply air temperature with respect to energy use in a variable air volume system  

Science Journals Connector (OSTI)

In a variable air volume (VAV) system with 100% outdoor air, the cooling need in the building is satisfied with a certain air flow at a certain supply air temperature. To minimize the system energy use, an optimal supply air temperature can be set dependent on the load, specific fan power (SFP), chiller coefficient of performance, outdoor temperature and the outdoor relative humidity. The theory for an optimal supply air temperature is presented and the heating, ventilation and air-conditioning (HVAC) energy use is calculated depending on supply air temperature control strategy, average U-value of the building envelope and two outdoor climates. The analyses show that controlling the supply air temperature optimally results in a significantly lower HVAC energy use than with a constant supply air temperature. The optimal average U-value of the building envelope is in practise mostly zero.

Fredrik Engdahl; Dennis Johansson

2004-01-01T23:59:59.000Z

5

Research on Fuzzy Regulation Strategies in the Constant Air Volume Air Conditioning System  

E-Print Network (OSTI)

Yifeng Wu Honglin Wang Doctoral Candidate Associate Professor Master Master Master Master School of Municipal & Environmental Eng, Harbin Institute of Technology Harbin P.R. China, 150090 hitbai@163.com Abstract: The energy consumption... region and the same operating strategy was adopted[1]. Wang Li analyzed the temperature control principles to achieve economical operation in CAV system, and presented improved control strategy to integrate fresh air control with indoor air...

Bai, T.; Zhang, J.; Ning, N.; Tong, K.; Wu, Y.; Wang, H.

2006-01-01T23:59:59.000Z

6

Neuro-optimal operation of a variable air volume HVAC&R system  

Science Journals Connector (OSTI)

Low operational efficiency especially under partial load conditions and poor control are some reasons for high energy consumption of heating, ventilation, air conditioning and refrigeration (HVAC&R) systems. To improve energy efficiency, HVAC&R systems should be efficiently operated to maintain a desired indoor environment under dynamic ambient and indoor conditions. This study proposes a neural network based optimal supervisory operation strategy to find the optimal set points for chilled water supply temperature, discharge air temperature and VAV system fan static pressure such that the indoor environment is maintained with the least chiller and fan energy consumption. To achieve this objective, a dynamic system model is developed first to simulate the system behavior under different control schemes and operating conditions. A multi-layer feed forward neural network is constructed and trained in unsupervised mode to minimize the cost function which is comprised of overall energy cost and penalty cost when one or more constraints are violated. After training, the network is implemented as a supervisory controller to compute the optimal settings for the system. Simulation results show that compared to the conventional night reset operation scheme, the optimal operation scheme saves around 10% energy under full load condition and 19% energy under partial load conditions.

Min Ning; M. Zaheeruddin

2010-01-01T23:59:59.000Z

7

Variable Speed Drive Volumetric Tracking (VSDVT) for Airflow Control in Variable Air Volume (VAV) Systems  

E-Print Network (OSTI)

Volume Systems.? Proceedings of ACEEE 1994 Summer Study on Energy Efficiency in Buildings, Vol. 5, pp. 219-223. 3. Liu M., Zhu Y., Claridge D.E., and White E., 1997. ?Impact of Static Pressure Set Level on HVAC Energy Consumption and Indoor... Volume Systems.? Proceedings of ACEEE 1994 Summer Study on Energy Efficiency in Buildings, Vol. 5, pp. 219-223. 3. Liu M., Zhu Y., Claridge D.E., and White E., 1997. ?Impact of Static Pressure Set Level on HVAC Energy Consumption and Indoor...

Liu, M.

2002-01-01T23:59:59.000Z

8

Application of Wireless Sensor Network (WSN) Technologies in Optimal Static Pressure Reset in Variable Air Volume (VAV) System  

E-Print Network (OSTI)

Optimization of the static pressure reset is always critical in the pursuit of maximum savings of fan power and thermal energy consumption in a VAV system. This paper theoretically investigated three static pressure reset methods, i.e. VAV terminal...

Zheng, K.; Li, H.; Yang, H.

2007-01-01T23:59:59.000Z

9

Compatible and Cost-Effective Fault Diagnostic Solutions for Air Handling Unit–Variable Air Volume and Air Handling Unit–Constant Air Volume Systems- 2014 BTO Peer Review  

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

Presenter: Jin Wen, Drexel University The goal of this project is to develop and demonstrate a library of diagnostics decision-support tools for medium-to-large-sized commercial buildings that use air handling unit (AHU) systems that can enable cost-effective diagnostics solutions (both embedded and add-on solutions) for existing buildings.

10

CALIFORNIA ENERGY Advanced Variable Air Volume  

E-Print Network (OSTI)

on VAV airside system design. Total large office building energy savings of up to 12% are achievable and controls for commercial buildings and in performing peer reviews of mechanical designs of commercial was developed as part of the Integrated Energy Systems -- Productivity and Building Science project, a Public

11

Integrating VAV zone requirements with supply fan operation. [Variable Air Volume  

SciTech Connect

The use of communicating direct digital controls (DDC) with distributed intelligence offers new opportunities for energy conservation while maintaining occupant comfort in commercial buildings. Integrating control within a single DDC panel improves performance. Integrating control by communications between multiple controllers can further enhance system operation. One example is a DDC static pressure reset strategy for supply fan operation in variable air volume (VAV) supply air distribution systems. This strategy integrates the requirements of the VAV terminal units serving the building zones to minimize fan energy use. This article describes terminal unit operation, supply fan control, concurrent polling, operational data and power savings.

Warren, M.L. (ASI Controls, San Ramon, CA (United States)); Norford, L.K. (Massachusetts Inst. of Tech., Cambridge (United States))

1993-04-01T23:59:59.000Z

12

Economical ontological models for discrete quantum systems  

Science Journals Connector (OSTI)

I use the recently proposed framework of ontological models (N. Harrigan, T. Rudolph, and S. Aaronson, e-print arXiv:0709.1149) to obtain economical models for the results of tomographically complete sets of measurements on finite-dimensional quantum systems. I describe a procedure that simplifies the models by decreasing the number of necessary ontic states and present an explicit model with just 33 ontic states for a qutrit.

Ernesto F. Galvão

2009-08-05T23:59:59.000Z

13

Economical ontological models for discrete quantum systems  

E-Print Network (OSTI)

I use the recently proposed framework of ontological models [Harrigan et al., arXiv:0709.1149v2] to obtain economical models for results of tomographically complete sets of measurements on finite-dimensional quantum systems. I describe a procedure that simplifies the models by decreasing the number of necessary ontic states, and present an explicit model with just 33 ontic states for a qutrit.

Ernesto F. Galvao

2009-02-13T23:59:59.000Z

14

Economizer system cost effectiveness: Accounting for the influence of ventilation rate on sick leave  

E-Print Network (OSTI)

ECONOMIZER SYSTEM COST EFFECTIVENESS: ACCOUNTING FOR THEand economic benefits of an economizer ventilation controlanalyses indicate that the economizer reduces energy costs

Fisk, William J.; Seppanen, Olli; Faulkner, David; Huang, Joe

2003-01-01T23:59:59.000Z

15

The Economic Case for Bulk Energy Storage in Transmission Systems  

E-Print Network (OSTI)

The Economic Case for Bulk Energy Storage in Transmission Systems with High Percentages to Engineer the Future Electric Energy System #12;#12;The Economic Case for Bulk Energy Storage Economic Case for Bulk Energy Storage in Transmission Sys- tems with High Percentages of Renewable

16

Economic Representation of Agricultural Activities in Water Resources Systems Engineering  

E-Print Network (OSTI)

i Economic Representation of Agricultural Activities in Water Resources Systems Engineering. #12;iii Guilherme Fernandes Marques January 2004 Civil and Environmental Engineering Economic of DOCTOR OF PHILOSOPHY in Engineering in the OFFICE OF GRADUATE STUDIES of the UNIVERSITY OF CALIFORNIA

Lund, Jay R.

17

Optimization of catalyst system reaps economic benefits  

SciTech Connect

Champlin Refining and Chemicals Inc. is learning to optimize its catalyst systems for hydrotreating Venezuelan gas oils through a program of research, pilot plant testing, and commercial unit operation. The economic results of this project have been evaluated, and the benefits are most evident in improvements in product yields and qualities. The project has involved six commercial test runs, to date (Runs 10-15), with a seventh run planned. A summary of the different types of catalyst systems used in the test runs, and the catalyst philosophy that developed is given. Runs 10 and 11 used standard CoMo and NiMo catalysts for heavy gas oils hydrotreating. These catalysts had small pore sizes and suffered high deactivation rates because of metals contamination. When it was discovered that metals contamination was a problem, catalyst options were reviewed.

Le Roy, C.F.; Hanshaw, M.J.; Fischer, S.M.; Malik, T.; Kooiman, R.R. (Champlin Refining and Chemicals Inc., Corpus Christi, TX (US))

1991-06-03T23:59:59.000Z

18

NREL: Energy Systems Integration - Economic and Environmental...  

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

ongoing. Users can access DER-CAM through the Internet to gain broad access to the DER optimization platform. Other versions provide the ability to determine economically- or...

19

Economic Operation and Planning of Distribution System Sources.  

E-Print Network (OSTI)

??This thesis presents the findings of some research carried out pertaining to economic operation and planning distribution systems. An optimal capacitor switching algorithm is developed… (more)

Li, KaiYu

2010-01-01T23:59:59.000Z

20

NREL: Water Power Research - Economic and Power System Modeling and  

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

Economic and Power System Modeling and Analysis Economic and Power System Modeling and Analysis NREL has a long history of successful research to understand and improve the cost of renewable energy technologies, their possible deployment scenarios, and the economic impacts of this deployment. As a research laboratory, NREL is a neutral third party and can provide an unbiased perspective of methodologies and approaches used to estimate direct and indirect economic impacts of offshore renewable energy projects. Deployment and Economic Impact NREL's economic analysis team is working to provide stakeholders with the tools necessary to understand potential deployment scenarios of water power technologies and the economic impacts of this deployment. The team is working to improve the representation of marine and

Note: This page contains sample records for the topic "air-volume system economizer" 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

Development of an isothermal 2D zonal air volume model with impulse  

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

Development of an isothermal 2D zonal air volume model with impulse Development of an isothermal 2D zonal air volume model with impulse conservation Title Development of an isothermal 2D zonal air volume model with impulse conservation Publication Type Conference Paper Year of Publication 2010 Authors Victor, Norrefeldt, Thierry Stephane Nouidui, and Gunnar Gruen Conference Name Clima 2010, 10th Rehva World Congress "Sustainable Energy Use in Buildings" Conference Location Antalya, Turkey Abstract This paper presents a new approach to model air flows with a zonal model. The aim of zonal models is to perform quick simulations of the air distribution in rooms. Therefore an air volume is subdivided into several discrete zones, typically 10 to 100. The zones are connected with flow elements computing the amount of air exchanged between them. In terms of complexity and needed computational time zonal models are a compromise between CFDcalculations and the approximation of perfect mixing. In our approach the air flow velocity is used as property of the zones. Thus the distinction between normal zones and jet or plume influenced zones becomes obsolete. The model is implemented in the object oriented and equation based language Modelica. A drawback of the new formulation is that the calculated flow pattern depends on the discretization. Nevertheless, the results show that the new zonal model performs well and is a useful extension to existing models.

22

Supply Fan Control for Constant Air Volume Air Handling Units  

E-Print Network (OSTI)

Since terminal boxes do not have a modulation damper in constant volume (CV) air handling unit (AHU) systems, zone reheat coils have to be modulated to maintain the space temperature with constant supply airflow. This conventional control sequence...

Cho, Y.; Wang, G.; Liu, M.

2007-01-01T23:59:59.000Z

23

Economic benefits of an economizer system: Energy savings and reduced sick leave  

SciTech Connect

This study estimated the health, energy, and economic benefits of an economizer ventilation control system that increases outside air supply during mild weather to save energy. A model of the influence of ventilation rate on airborne transmission of respiratory illnesses was used to extend the limited data relating ventilation rate with illness and sick leave. An energy simulation model calculated ventilation rates and energy use versus time for an office building in Washington, D.C. with fixed minimum outdoor air supply rates, with and without an economizer. Sick leave rates were estimated with the disease transmission model. In the modeled 72-person office building, our analyses indicate that the economizer reduces energy costs by approximately $2000 and, in addition, reduces sick leave. The annual financial benefit of the decrease in sick leave is estimated to be between $6,000 and $16,000. This modeling suggests that economizers are much more cost effective than currently recognized.

Fisk, William J.; Seppanen, Olli; Faulkner, David; Huang, Joe

2004-02-01T23:59:59.000Z

24

NREL: Water Power Research - Economic and Power System Modeling and  

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

Economic and Power System Modeling and Analysis Economic and Power System Modeling and Analysis NREL's Economic Analysis and power system modeling integrates data from device deployment and programmatic research into deployment and scenario models to quantify the economic and societal benefits of developing cost-competitive marine and hydrokinetic systems. It also identifies policy mechanisms, market designs, and supply chain needs to support various deployment scenarios, provide information and training to potential members of the marine and hydrokinetic (MHK) industry and effectively collaborate with all associated stakeholders. JEDI Modeling NREL worked with industry members to develop and provide public access to an easy-to-use input-output model that estimates the jobs and economic development impacts (JEDI) of MHK projects in the United States. The JEDI

25

Heat recovery and the economizer for HVAC systems  

SciTech Connect

This articles examines why a combined heat reclaim/economizer system with priority to heat reclaim operation is most likely to result in the least annual total HVAC energy. PC-based, hour-by-hour simulation programs evaluate annual HVAC energy requirements when using combined operation of heat reclaim and economizer cycle, while giving priority to operation of either one. These simulation programs also enable the design engineer to select the most viable heat reclaim and/or economizer system for any given type of HVAC system serving the building internal load level, building geographical location and other building/system variables.

Anantapantula, V.S. (Emerson Electric Co., St. Louis, MO (United States). Alco Controls Div.); Sauer, H.J. Jr. (Univ. of Missouri, Rolla, MO (United States))

1994-11-01T23:59:59.000Z

26

Central Energy Systems - Applications to Economic Development  

E-Print Network (OSTI)

the conceptual stage of design. The second program, Central Energy Systems Analysis Program (CESAP) analyzes energy efficiency for a group of buildings and determines if a new district heating and cooling (DHC) system would be a cost effective application...

Myers, M. S.; Diserens, S. E.

1985-01-01T23:59:59.000Z

27

Experimental Study of the Circulation Air Volume of Recirculation Evaporative Cooling  

E-Print Network (OSTI)

ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency, Vol. IV-11-3 Experimental Study of the Circulation Air Volume of Recirculation Evaporative Cooling 1 Jun Xiong ZeHua Liu Chao Wang GuoJie Chen Bachelor Senior.... Pre-design and design tools for evapora- tive cooling[J]. ASHRAE Transaction: Symposia. 2001.Vol. 107 part1: 501-510. [5] LiangShi Ding, JianJun Wang, MingJian Jiang. Investigations of the thermal performance of in- direct evaporative plate heat...

Xiong, J.; Liu, Z.; Wang, C.; Chen, G.

2006-01-01T23:59:59.000Z

28

Energy-Economic Information System (SIEE) | Open Energy Information  

Open Energy Info (EERE)

Energy-Economic Information System (SIEE) Energy-Economic Information System (SIEE) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy-Economic Information System (SIEE) Database Agency/Company /Organization: Latin American Energy Organization Sector: Energy Topics: Baseline projection, GHG inventory, Background analysis Resource Type: Dataset Website: www.olade.org/sieeEn.html Country: Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama, Mexico, Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela, Barbados, Cuba, Grenada, Haiti, Jamaica, Trinidad & Tobago, Dominican Republic Central America, Central America, Central America, Central America, Central America, Central America, Central America, South America, South America, South America, South America, South America, South America, South America, South America, South America, South America, South America, South America, Caribbean, Caribbean, Caribbean, Caribbean, Caribbean, Caribbean, Caribbean

29

Energy, Environmental, and Economic Systems Analysis  

E-Print Network (OSTI)

and deregulated, shifting control from a single decision maker (i.e., a single, government-owned electric utility in the electricity market are represented as "agents." All agents can have their own set of objectives, decision maker with a single objective for the entire system. Rather, agents follow their own objectives

30

Transmission Pricing of Distributed Multilateral Energy Transactions to Ensure System Security and Guide Economic Dispatch  

E-Print Network (OSTI)

Transmission Pricing of Distributed Multilateral Energy Transactions to Ensure System Security and Guide Economic Dispatch...

Ilic, Marija; Hsieh, Eric; Remanan, Prasad

2004-06-16T23:59:59.000Z

31

Research, Education, and Economics Information System (REEIS) | Data.gov  

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

Research, Education, and Economics Information System (REEIS) Research, Education, and Economics Information System (REEIS) Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Research, Education, and Economics Information System (REEIS) Dataset Summary Description The Research, Education, and Economics Information System (REEIS) is a source of information on the research, education and extension programs, projects and activities of the U. S. Department of Agriculture (USDA) National Institute of Food and Agriculture (NIFA), the USDA Forest Service, the USDA National Agricultural Statistics Service, the U. S. Patent and Trademark Office, U. S. Census Bureau, and the U. S. National Science Foundation. The system enables users to measure the impact and effectiveness of research, extension and education programs based on data related to agricultural research; forestry research; students, faculty and degrees related to agriculture; USDA partner institution snapshots; Food and nutrition research; 4-H programs; and agricultural snapshots of each state. Internet links to related agencies, institutions, and data bases are also included.

32

Systems Agronomic and Economic Evaluation of Cotton Varieties  

E-Print Network (OSTI)

Systems Agronomic and Economic Evaluation of Cotton Varieties in the Texas High Plains 2007 Final Report Submitted to Plains Cotton Growers Plains Cotton Improvement Program Dr. Randy Boman, Extension Agronomist-Cotton Dr. Mark Kelley, Extension Program Specialist Texas AgriLife Extension Service Texas Agri

Mukhtar, Saqib

33

Systems Agronomic and Economic Evaluation of Cotton Varieties  

E-Print Network (OSTI)

Systems Agronomic and Economic Evaluation of Cotton Varieties in the Texas High Plains 2008 Final Report Submitted to Plains Cotton Growers Plains Cotton Improvement Program Dr. Randy Boman, Extension Agronomist-Cotton Dr. Mark Kelley, Extension Program Specialist II Texas AgriLife Extension Service Texas

Mukhtar, Saqib

34

Economic and Distributed Model Predictive Control of Nonlinear Systems  

E-Print Network (OSTI)

R. Amrit. Optimizing process economic performance us- ing2 Economic Model Predictive Control of Nonlinear Processof MPC and economic optimization of processes (e.g. , [2,

Heidarinejad, Mohsen

2012-01-01T23:59:59.000Z

35

A new operating strategy for economizer dampers of VAV system  

Science Journals Connector (OSTI)

The paper proposes a new operating strategy for the outdoor, discharge, and recirculation air dampers of the economizer in VAV system, called split-signal damper control strategy. The strategy controls the outdoor air by only one damper while keeping the remaining dampers full open. The discharge or recirculation air damper is modulated to control the amount of outdoor air introduced into the system while keeping the two remaining dampers full open. Since at least two dampers are always kept fully open during the occupied times, the strategy can provide a minimum static pressure drop in economizer dampers and results in minimum energy use in return and supply fans. An additional advantage is that the proposed strategy prevents reverse airflow through the discharge air damper of a VAV system that uses a volume matching control strategy. The proposed strategy along with the existing strategies such as the three-coupled dampers used in most existing system and the two-coupled dampers are evaluated on an existing system using 1-year long measured data set, along with an economizer damper model developed and validated in this paper. The simulation results show that the annual energy savings in supply and return fans of an existing system, compared to the traditional strategy of three-coupled dampers, are 12% and 5%, respectively.

N. Nassif; S. Moujaes

2008-01-01T23:59:59.000Z

36

Economics of Cattle Feeding Systems for West Texas.  

E-Print Network (OSTI)

'9 1. /@ 2". * 4''@~ fQ4Q~ bchf~ '6 $9 "4; ,p*, d Economics of Cattle Feeding Systems for West Texas ,,5~'* ,LI~~ 3 TEXAS AGRICULTURAL EXPERIMENT STATION R. D. LEWIS, DIRECTOR, COLLEGE STATION, TEXAS SUMMARY The purpose of the study... reported here is to assist West Texas farmers to appraise the opportunities for marketing sorghum grain through cattle at a profit. To do this, systems of cattle feeding were selected which "fitted in" with cash-crop pro- duction, These systems were...

Hughes, W. F.; Fisher, C. E.; Marion, P. T.; Magee, A. C.

1957-01-01T23:59:59.000Z

37

Intermittent absorption refrigeration system equipped with an economizer  

Science Journals Connector (OSTI)

Abstract Conservation of useful form of energy, i.e. electricity to be used in the production sector rather than consumption sector is becoming a priority in the KSA (Kingdom of Saudi Arabia). One of the consumption sectors which utilize a large amount of electrical energy is the air-conditioning and refrigeration sector. Improving the performance of refrigeration and air-conditioning systems and utilizing solar energy in powering such systems will contribute to significant conservation of electrical energy in the kingdom of Saudi-Arabia. Hence, the objective of the present study is to improve the performance of intermittent solar absorption refrigeration system. To achieve this objective, the design of a conventional intermittent system has been modified by introducing an economizer into the system. The analysis of the modified design system indicated an increase of 20% in the coefficient of performance of the system.

S.A.M. Said; M.A.I. El-Shaarawi; M.U. Siddiqui

2013-01-01T23:59:59.000Z

38

Economic development through biomass system integration: Volume 1  

SciTech Connect

This report documents a feasibility study for an integrated biomass power system, where an energy crop (alfalfa) is the feedstock for a processing plant and a power plant (integrated gasification combined cycle) in a way that benefits the facility owners. Chapters describe alfalfa basics, production risks, production economics, transportation and storage, processing, products, market analysis, business analysis, environmental impact, and policy issues. 69 figs., 63 tabs.

DeLong, M.M. [Northern States Power Co., Minneapolis, MN (United States)

1995-10-01T23:59:59.000Z

39

Investigation into economical desalination using optimized hybrid renewable energy system  

Science Journals Connector (OSTI)

This paper investigates the use of hybrid renewable energy systems (HRESs) in Reverse Osmosis (RO) desalination. Mathematical model aided with a newly developed computer program for sizing (HRES) components. The study evaluates the individual and total expenses needed as well as the amount of excess renewable energy production. An optimization program was developed to select the best (HRES) combination that can produce desalinated water in a relatively economic cost. It demonstrates an investigated optimization approach based on minimization of the excess energy. It presents the impact of the considered optimization technique on the unit cost of energy and consequently unit cost of desalinated water. Unit production costs of both energy and desalinated water for two existing small and medium (RO) plants powered with conventional electricity grid are compared with the generated electricity from optimized (HRES). Cost sensitivity evaluation for (HRES) components to estimate the most economical price of (HRES) for desalination is presented.

A. Hossam-Eldin; A.M. El-Nashar; A. Ismaiel

2012-01-01T23:59:59.000Z

40

Economic analysis of standalone and grid connected hybrid energy systems  

Science Journals Connector (OSTI)

A pilot region was selected and cost analysis of using renewable energy sources with a hydrogen system for that region’s energy demand is introduced, in a techno-economic perspective, in this paper. The renewable energy potential for the region was evaluated by implementing energy cost analysis. The study also evaluates the feasibility of utilizing solar and wind energy with hydrogen as a storage unit to meet the electricity requirements of the pilot region as a standalone system and in conjunction with the conventional grid based electricity. In order to simulate the operation of the system and to calculate the technical and economic parameters, micropower optimization program Homer (NREL, US) was used in this study. Homer requires some input values, such as technological options, cost of components, and resource compliance; and then the program ranges the feasible system configurations according to the net present cost (system cost) by using these inputs. The pilot region in this study, where the renewable based energy will be used, is determined to be Electrics & Electronics Faculty, Istanbul Technical University.

Belgin Emre Türkay; Ali Yasin Telli

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

The Economic Impact of The Coca-Cola System on South Africa  

E-Print Network (OSTI)

The Economic Impact of The Coca-Cola System on South Africa Prepared by Division of Research March 2005 SOUTH AFRICA SOUTH AFRICA #12;The Economic Impact of The Coca-Cola System on South Africa-Cola system's economic impact on South Africa. Conducted during 2003-04, the study represents a wide

Almor, Amit

42

Commercial thermal distribution systems, Final report for CIEE/CEC  

E-Print Network (OSTI)

air-volume HVAC systems, static pressures across theIn VAY HVAC systems, the static pressures may likely changefor the Static Pressure Analysis Tool are: • HVAC schedule

Xu, T.

2011-01-01T23:59:59.000Z

43

System dynamics based models for selecting HVAC systems for office buildings: a life cycle assessment from carbon emissions perspective.  

E-Print Network (OSTI)

??This study aims to explore the life cycle environmental impacts of typical heating ventilation and air condition (HVAC) systems including variable air volume (VAV) system,… (more)

Chen, S

2011-01-01T23:59:59.000Z

44

Economic Valuation of a New Meteorological Information Service: Conjoint Analysis for a Pollen Forecast System  

Science Journals Connector (OSTI)

This study aims to investigate the public’s preferences for and quantitatively measure the economic value of a pollen forecast system, a new meteorological information service, in South Korea. To directly measure the economic value of the pollen ...

Joong-Woo Lee; Jinyong Jang; Kwang-Kun Ko; Youngsang Cho

2014-10-01T23:59:59.000Z

45

On the Relation between Information Technology and Socio-Economic Systems [and Discussion  

Science Journals Connector (OSTI)

...On the Relation between Information Technology and Socio-Economic Systems...opportunity. But who needs it? Information technology appears to act upon our...transformative interactions between information technology and our socio-economic...

1978-01-01T23:59:59.000Z

46

Which idling reduction system is most economical for truck owners?  

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

Which idling reduction system is Which idling reduction system is most economical for truck owners? Linda Gaines Center for Transportation Research Argonne National Laboratory Commercial Vehicle Engineering Congress and Exposition Rosemont, Il October 7-9, 2008 The price of diesel is high *Idling a Class 8 truck uses 0.6-1.2 gallons per hour *That can total over $50 a night! *So even without regulations, there's an incentive to reduce idling *Even if the price goes down more, idling reduction makes sense 2 Why do sleepers idle overnight? For services to resting driver and friend y Heating, ventilation, and air conditioning (HVAC) y Power for appliances 8TV, microwave, refrigerator, computer, hair drier To keep fuel and engine warm To mask out noises and smells Because other drivers do it

47

Emergy Synthesis and Its Application on Water Efficiency of Water Ecological-Economic System  

Science Journals Connector (OSTI)

Water ecological-economic system (WEES) is a coupling system of traditional water resource system (WS) and eco-environment, social economy system. Water efficiency is an important index and comprehensively reflec...

Cuimei Lv; Minhua Ling

2011-01-01T23:59:59.000Z

48

Representation of Knowledge Resource in the context of Economic Intelligence Systems  

E-Print Network (OSTI)

, treatment and use of relevant information for economic actors in decision making process of knowledge in the decision making projects of the Economic Intelligence process by acquiring, organizing1 Representation of Knowledge Resource in the context of Economic Intelligence Systems Oladejo

Paris-Sud XI, Université de

49

Economic Contributions of the State University System of Florida in Fiscal Year 2009-10  

E-Print Network (OSTI)

1 Economic Contributions of the State University System of Florida in Fiscal Year 2009-10 SponsoredD, Thomas J. Stevens, PhD, and Rodney L. Clouser, PhD University of Florida, Food & Resource Economics for Economic Forecasting and Analysis March 8, 2012 #12;2 Table of Contents Executive Summary

Florida, University of

50

Control Humidity With Single-Duct, Single-Zone, Constant Air Volume System  

E-Print Network (OSTI)

for the AHLJ after Adjusted Conditions I I Return Fan: off; Return Damper: closed; Outside Air Damper: closed (signal) I 7- 14-99 9:44 AM AHU Dimensions Total Air Flow (CW Average Velocity (FPM) Temperature ("F) Humidity (% RH) Dew Point (OF... (FPM) Humidity (% RH) 1 83.0 -... r------ L -/ Dew Point (OF) Static Pressure supply 24" x 24" 4450 1180 Outside Air N/ A 2490 N/ A Mix Air 20" x 36" 4530 1091 T~mnrmt~w~ (OF) I 67.6 1 73.0 I 72.1 I 85.7 I . - 62.9 10.75 Return Air...

Chen, H.; Deng, S.; Bruner, H. L.; Claridge, D. E.

2000-01-01T23:59:59.000Z

51

Energy Savings for Occupancy-Based Control (OBC) of Variable-Air-Volume (VAV) Systems  

SciTech Connect

This study evaluates the savings potential of occupancy based control (OBC) for large office buildings with VAV terminal boxes installed.

Zhang, Jian; Lutes, Robert G.; Liu, Guopeng; Brambley, Michael R.

2013-01-24T23:59:59.000Z

52

Room Temperature Control During Season Switchover with Single Duct Variable Air Volume System Without Reheat  

E-Print Network (OSTI)

of VAV boxes to maintain room temperature at their setpoints. The thermostat action is switched from direct acting (DA) to reverse acting (RA) when the season changes from fall to winter and vice versa from winter to spring, based on the out side air...

Liu, C.; Deng, S.; Claridge, D. E.; Turner, W. D.; Bruner, H.

2003-01-01T23:59:59.000Z

53

Improving Control of a Dual-Duct Single-Fan Variable Air Volume Systems  

E-Print Network (OSTI)

cold and hot air duct static pressure set points is presented. The paper also explores the interactions between the cold and hot deck temperatures and duct static pressures, and discusses the impact of non-ideal deck temperature settings on duct static...

Wei, G.; Martinez, J.; Minihan, T.; Brundidge, T.; Claridge, D. E.; Turner, W. D.

2003-01-01T23:59:59.000Z

54

A study on static pressure reset and instability in variable air volume HVAC systems.  

E-Print Network (OSTI)

??This project began with testing five different versions of supply duct static pressure reset strategies that fall into two general categories: Proportional plus Integral control… (more)

Housholder, Brian Wayne

2011-01-01T23:59:59.000Z

55

Combined solar and internal load effects on selection of heat reclaim-economizer HVAC systems  

SciTech Connect

The concern for energy conservation has led to the development and use of heat recovery systems which reclaim the building internal heat before it is discarded in the exhaust air. On the other hand, economizer cycles have been widely used for many years in a variety of types of HVAC systems. Economizer cycles are widely accepted as a means to reduce operating time for chilling equipment when cool outside air is available. It has been suggested that heat reclaim systems should not be used in conjunction with an HVAC system which incorporates an economizer cycle because the economizer operation would result in heat being exhausted which might have been recovered. Others suggest that the economizer cycle can be used economically in a heat recovery system if properly controlled to maintain an overall building heat balance. This study looks at potential energy savings of such combined systems with particular emphasis on the effects of the solar load (amount of glass) and the internal load level (lights, people, appliances, etc.). For systems without thermal storage, annual energy savings of up to 60 percent are predicted with the use of heat reclaim systems in conjunction with economizers when the heat reclaim has priority. These results demonstrate the necessity of complete engineering evaluations if proper selection and operation of combined heat recovery and economizer cycles are to be obtained. This paper includes the basic methodology for making such evaluations.

Sauer, H.J. Jr.; Howell, R.H.; Wang, Z. (Missouri Univ., Rolla, MO (USA). Dept. of Mechanical Engineering)

1990-05-01T23:59:59.000Z

56

Economic analysis of residential and commercial solar heating and hot water systems  

SciTech Connect

The economic evaluation of residential and commercial solar heating and hot water systems is presented. Commercial systems are further categorized as taxable and non-taxable applications in recognition of the effect of Federal and state tax incentives and disincentives for solar energy systems. The economic evaluation of each system type is performed utilizing two distinct methods of analysis. The economic analyses follow a brief description of each method. The Cash Flow Analyses provide insight into the short and long term effects of a solar investment on the budget of the solar energy system purchaser while the Return-On-Investment Analyses provide an appropriate method of measuring the attractiveness of a solar investment in comparison to alternative long term investments. Utilizing a typical system for each system type and application the Cash Flow and Return-On-Investment Analyses are presented. The sensitivity of the results on the numerous variables in the economic analyses is shown. Maps provide a graphic display of the results of the economic analysis of typical systems using Federal and state tax credits and average state conventional fuel costs for each system type. Conclusions based on the economic analyses performed and a thorough discussion of the present status of the data required for the complete economic evaluation of solar energy systems are summarized. The current availability and limitations of data and requirements for further work in this area are discussed.

None

1980-09-23T23:59:59.000Z

57

Economical Analysis of the Cold Air Distribution System: A Case Study  

E-Print Network (OSTI)

In this paper, we briefly introduce the super cold air distribution technique. By comparing the schemes of two air conditioning systems, including a modified air conditioning system, this paper analyzes the technique parameters and the economics...

Zhou, Z.; Xu, W.; Li, J.; Zhao, J.; Niu, L.

2006-01-01T23:59:59.000Z

58

Modeling the Impact of Product Portfolio on the Economic and Environmental Performance of Recycling Systems  

E-Print Network (OSTI)

hrough the development of a general model of electronics recycling systems, the effect of product portfolio choices on economic and environmental system performance is explored. The general model encompasses the three main ...

Dahmus, Jeffrey B.

59

E-Print Network 3.0 - air volume air Sample Search Results  

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

Use Summary: pressure, and for modeling the change in system pressure as function of compressed air storage volume... important system variables such as system pressure and...

60

Techno-economic Appraisal of Concentrating Solar Power Systems (CSP).  

E-Print Network (OSTI)

?? The diffusion of Concentrating Solar Power Systems (CSP) systems is currently taking place at a much slower pace than photovoltaic (PV) power systems. This… (more)

Gasti, Maria

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

Economic Analysis and Comparison of Waste Water Resource Heat Pump Heating and Air-Conditioning System  

E-Print Network (OSTI)

ICEBO2006, Shenzhen, China Renewable Energy Resources and a Greener Future, Vol.VIII-8-1 Economic Analysis and Comparison of Waste Water Resource Heat Pump Heating and Air-conditioning System Chunlei Zhang Suilin Wang Hongbing Chen...

Zhang, C.; Wang, S.; Chen, H.; Shi, Y.

2006-01-01T23:59:59.000Z

62

Economic Analysis of a Waste Water Resource Heat Pump Air-Conditioning System in North China  

E-Print Network (OSTI)

This paper describes the situation of waste water resource in north China and the characteristics and styles of a waste water resource heat pump system, and analyzes the economic feasibility of a waste water resource heat pump air...

Chen, H.; Li, D.; Dai, X.

2006-01-01T23:59:59.000Z

63

Technical and Economic Analysis of Solar Cooling Systems in a Hot and Humid Climate  

E-Print Network (OSTI)

optimization model is developed to determine whether a particular solar system is economically advantageous for a particular project. This model explains and illustrates with simple, but realistic examples the use of life-cycle cost analysis and benefit-cost...

Moaveni, H.

64

Techno-Economic Evaluation of Renewable Energy Systems for Irrigation Water Pumping in India  

Science Journals Connector (OSTI)

An attempt to develop a simple framework for techno-economics evaluation of renewable energy (RE) systems for irrigation water pumping has been made. The unit cost of water delivered and unit cost of useful energy

Ishan Purohit; Pallav Purohit

2009-01-01T23:59:59.000Z

65

Cybernetic automata: An approach for the realization of economical cognition for multi-robot systems  

E-Print Network (OSTI)

CYBERNETIC AUTOMATA: AN APPROACH FOR THE REALIZATION OF ECONOMICAL COGNITION FOR MULTI-ROBOT SYSTEMS A Dissertation by NEBU JOHN MATHAI 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 May 2008 Major Subject: Electrical Engineering CYBERNETIC AUTOMATA: AN APPROACH FOR THE REALIZATION OF ECONOMICAL COGNITION FOR MULTI-ROBOT SYSTEMS A Dissertation by NEBU JOHN MATHAI Submitted to the Office of Graduate...

Mathai, Nebu John

2009-05-15T23:59:59.000Z

66

Economic analysis of residential combined solar-heating and hot-water systems  

SciTech Connect

A brief description of a typical residential solar heating and hot water system and typical cost and performance information are presented. The monthly costs and savings of the typical system are discussed. The economic evaluation of solar residential systems is presented in increasing levels of complexity. Utilizing a typical system, the effective interest rate that the purchaser of a system would receive on money invested is shown for all regions of the country. The importance of numerous variables that can make a significant difference on the economics of the system is described so that it can be determined whether the typical system economics are compatible with the particular situation. Methods for calculating the payback period for any non-typical solar system are described. This calculated payback period is then shown to be related to the effective interest rate that the purchaser of the system would receive for a typical economic condition. A nomagraph is presented that performs this calculation. Finally, a method is presented to calculate the effective interest rate that the solar system would provide. It is shown how to develop the relationship between payback period and the effective interest rate for any economic scenario.

None

1980-09-23T23:59:59.000Z

67

Economic analysis of coal-based polygeneration system for methanol and power production  

Science Journals Connector (OSTI)

Polygeneration system for chemical and power co-production has been regarded as one of promising technologies to use fossil fuel more efficiently and cleanly. In this paper the thermodynamic and economic performances of three types of coal-based polygeneration system were investigated and the influence of energy saving of oxygenation systems on system economic performance was revealed. The primary cost saving ratio (PCS) is presented as a criterion, which represents the cost saving of polygeneration system compared with the single-product systems with the same products outputs, to evaluate economic advantages of polygeneration system. As a result, the system, adopting un-reacted syngas partly recycled to the methanol synthesis reactor and without the shift process, can get the optimal PCS of 11.8%, which results from the trade-off between the installed capital cost saving and the energy saving effects on the cost saving, and represents the optimal coupling relationship among chemical conversion, energy utilization and economic performance. And both of fuel price and the level of equipment capital cost affect on PCS faintly. This paper provides an evaluation method for polygeneration systems based on both technical and economic viewpoints.

Hu Lin; Hongguang Jin; Lin Gao; Wei Han

2010-01-01T23:59:59.000Z

68

Economizer refrigeration cycle space heating and cooling system and process  

DOE Patents (OSTI)

This invention relates to heating and cooling systems and more particularly to an improved system utilizing a Stirling Cycle engine heat pump in a refrigeration cycle. 18 figs.

Jardine, D.M.

1983-03-22T23:59:59.000Z

69

Economizer refrigeration cycle space heating and cooling system and process  

DOE Patents (OSTI)

This invention relates to heating and cooling systems and more particularly to an improved system utilizing a Stirling Cycle engine heat pump in a refrigeration cycle.

Jardine, Douglas M. (Colorado Springs, CO)

1983-01-01T23:59:59.000Z

70

Economizer system cost effectiveness: Accounting for the influence of ventilation rate on sick leave  

SciTech Connect

This study estimated the health, energy, and economic benefits of an economizer ventilation control system that increases outside air supply during mild weather to save energy. A model of the influence of ventilation rate on airborne transmission of respiratory illnesses was used to extend the limited data relating ventilation rate with illness and sick leave. An energy simulation model calculated ventilation rates and energy use versus time for an office building in Washington, DC with fixed minimum outdoor air supply rates, with and without an economizer. Sick leave rates were estimated with the disease transmission model. In the modeled 72-person office building, our analyses indicate that the economizer reduces energy costs by approximately $2000 and, in addition, reduces sick leave. The financial benefit of the decrease in sick leave is estimated to be between $6,000 and $16,000. This modelling suggests that economizers are much more cost effective than currently recognized.

Fisk, William J.; Seppanen, Olli; Faulkner, David; Huang, Joe

2003-06-01T23:59:59.000Z

71

Thermal and economical analysis of an underground seasonal storage heating system in Thrace  

Science Journals Connector (OSTI)

Economical analysis of the solar heating system with seasonal storage, which was established in Edirne (41°39?54?N) in order to provide the heat requirement of buildings, has been fulfilled. Optimum collector area for the heating system has been determined. Total heat requirement of 69% has been met by means of heating system concerning the space heating and domestic water heating. In the accordance with the results of the economical analysis, the payback time of the heating system has been determined as 19–20 years.

Berrin Karacavus; Ahmet Can

2009-01-01T23:59:59.000Z

72

An advanced economizer controller for dual-duct air-handling systems -- with a case application  

SciTech Connect

A heating penalty is expected when economizers are applied to dual-duct air-handling systems. The heating penalty can be even higher than the cooling savings when the hot airflow is higher than the cold airflow. To avoid the excessive heating penalty, advanced economizers are developed in this paper. The application of the advanced economizer has resulted in savings of $7,000/yr in one 95,000-ft{sup 2} (8,800-m{sup 2}) school building since 1993. The impacts of cold and hot deck settings on the energy consumption are also discussed.

Liu, M.; Claridge, D.E. [Texas A and M Univ., College Station, TX (United States). Mechanical Engineering Dept.; Park, B.Y. [Engineering Education Inst., Inchon (Korea, Republic of). Dept. of Architectural Engineering

1997-12-31T23:59:59.000Z

73

Techno-economic and environmental risk analysis for advanced marine propulsion systems  

Science Journals Connector (OSTI)

A Techno-economic, Environmental and Risk Analysis (TERA) computational method has been developed for marine propulsion systems. The method comprises several numerical models which simulate the life cycle operation of marine gas turbines installed on marine vessels. Using a system-of-systems approach, the effect of operational profile can be taken into consideration in the assessment of a novel prime mover. Stochastic estimates of the powerplant’s life cycle net present cost are generated. The ship performance model plays a central role in the TERA method. This is an integrated virtual marine vessel operating environment that allows the calculation of engine performance and exhaust emissions (nitric oxide (NOx), carbon monoxide CO, carbon dioxide (CO2) and unburned hydrocarbon (UHC)) for a given trip. The life of the gas turbine is assessed through a creep-life prediction method, which plays a significant role on the maintenance cost calculation in the economic model. The economic model predicts net present cost over the operating life of the vessel using stochastic analysis of the earning capacity of the ship powered by the chosen prime mover. The TERA simulation of a 25 MW marine gas turbine powering a RoPax fast ferry in an integrated full electric propulsion system is presented as an illustration of the method. The example includes aspects of the systemic analysis of engine and ship performance, accompanied by environmental effect and engine life prediction, coupled with an economic feasibility stochastic study of the selected propulsion system under several journey and economic scenarios.

G. Doulgeris; T. Korakianitis; P. Pilidis; E. Tsoudis

2012-01-01T23:59:59.000Z

74

96 ASHRAE Transactions: Research Current duct design methods for variable air volume  

E-Print Network (OSTI)

.Hourlyairflowrequirements, part-load fan characteristics, and duct static pressure control are incorporated into the problem airflow. Fan power is also influ- enced if static pressure at the end of the longest duct line for effective, energy-efficient, and comfortable heating, ventilat- ing, and air-conditioning (HVAC) systems

75

Object Model as the Basis of the Information Technology of Designing Complex Socio-Economic Systems  

Science Journals Connector (OSTI)

A method of modeling complex socio-economic systems based on the object-oriented approach is considered. The method is the basis for the information technology of design and allows creating a hierarchical model of a complex system. The results of applying ... Keywords: functional relations, hierarchy of components, object-oriented model, technology of design

M. P. Silich

2005-09-01T23:59:59.000Z

76

ON THE ECONOMIC PAYOFF OF FORENSIC SYSTEMS WHEN USED TO TRACE COUNTERFEITED SOFTWARE AND  

E-Print Network (OSTI)

ON THE ECONOMIC PAYOFF OF FORENSIC SYSTEMS WHEN USED TO TRACE COUNTERFEITED SOFTWARE AND CONTENT YACOV YACOBI Abstract. We analyze how well forensic systems reduce counterfeiting of soft- ware the introduction of forensics (Ro) are non-zero then the payo¤ of forensics is independent of the overall market

77

Advanced Water Treatment System: Technological and Economic Evaluations  

Science Journals Connector (OSTI)

The supply of potable water from polluted rivers, lakes, unsafe wells, ... most effective methods to obtain low cost drinking water is desalination. In this chapter, an advanced water treatment system, based on electrodialysis

Artak Barseghyan

2011-01-01T23:59:59.000Z

78

Economic development through biomass system integration. Volumes 2--4  

SciTech Connect

Report documents a feasibility study for an integrated biomass power system, where an energy crop (alfalfa) is the feedstock for a processing plant and a power plant (integrated gasification combined cycle) in a way that benefits the facility owners.

DeLong, M.M.

1995-10-01T23:59:59.000Z

79

An economical optical system design using phase diversity  

E-Print Network (OSTI)

The resolution of an incoherent imaging system is olden limited aberrations. Phase aberrations by phase arise from a variety of sources including atmospheric turbulence, misaligned optical and improper mirror figure. Knowledge of phase aberrations...

Thosani, Samir C.

2012-06-07T23:59:59.000Z

80

Technology Enablers for Next-Generation Economic Building Monitoring Systems  

E-Print Network (OSTI)

specific context for analysis. Primary duties include aggregating building data, managing measurement devices (loggers), and analyzing data for quality, diagnostics, and savings. Modern EMCS may encompass all of the subsystems. Simple monitoring systems... Control data to the logger Master Building Server Aggregate building data, manage measurement devices (loggers), analyze data for quality, savings, and unknowns Control network of local servers and loggers Large computer system with RDBMS and online...

Sweeney, J., Jr.; Culp, C.

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

Neutron economic reactivity control system for light water reactors  

DOE Patents (OSTI)

A neutron reactivity control system for a LWBR incorporating a stationary seed-blanket core arrangement. The core arrangement includes a plurality of contiguous hexagonal shaped regions. Each region has a central and a peripheral blanket area juxapositioned an annular seed area. The blanket areas contain thoria fuel rods while the annular seed area includes seed fuel rods and movable thoria shim control rods.

Luce, Robert G. (Glenville, NY); McCoy, Daniel F. (Latham, NY); Merriman, Floyd C. (Rotterdam, NY); Gregurech, Steve (Scotia, NY)

1989-01-01T23:59:59.000Z

82

Renewable Energy Positioning System: Energy Positioning: Control and Economics  

SciTech Connect

GENI Project: The University of Washington and the University of Michigan are developing an integrated system to match well-positioned energy storage facilities with precise control technologies so the electric grid can more easily include energy from renewable power sources like wind and solar. Because renewable energy sources provide intermittent power, it is difficult for the grid to efficiently allocate those resources without developing solutions to store their energy for later use. The two universities are working with utilities, regulators, and the private sector to position renewable energy storage facilities in locations that optimize their ability to provide and transmit electricity where and when it is needed most. Expanding the network of transmission lines is prohibitively expensive, so combining well-placed storage facilities with robust control systems to efficiently route their power will save consumers money and enable the widespread use of safe, renewable sources of power.

None

2012-03-01T23:59:59.000Z

83

Technical and economic evaluations of cogeneration systems using computer simulations  

E-Print Network (OSTI)

price increases over the next 25 years, which are more punitive than a constant escalation of 5'/o per year. For Texas ARM University, several sizes of gas turbines were modeled. However, none seemed feasible for meeting the current electric and steam.... system size without older gas turbine. . . . . . . NPV vs. gas price escalation with lines of constant electrical NPV vs 'lo change in O&M and Capital expenses. Page . . . . 2 13 . , 18 24 . ?60 . . 61 , , 64 . . 65 . . . 67 68 73 . . 74...

Fennell, Steven Rush

2012-06-07T23:59:59.000Z

84

Economic development through biomass systems integration in central Florida  

SciTech Connect

A biomass to energy system for central Florida was conceptualized with sugarcane as the main feedstock. Additional feedstocks include elephantgrass, leucaena (woody tropical legume), and Eucalyptus. Juice will be pressed from sugarcane and sugars fermented into ethanol with conventional technology. Enough sugarcane will be grown to supply a conventional ethanol plant with juice for a 330 day operating period each yr. Juice will be condensed to 24 degrees Brix for direct conversion during the approximately 100 day harvest season and to 70 degrees Brix for storage and use the remaining 230 days. Residues (mainly lignin), from converting lignocellulosic materials to ethanol, will fuel the plant including evaporators for sugarcane juice. Sugarcane presscake, elephantgrass, leucaena, and Eucalyptus will be feedstocks for the lignocellulose conversion processes. The lignocellulose plant will be sized to convert all sugarcane presscake as it is produced to reduce storage costs. Elephantgrass, leucaena and Eucalyptus will feed the plant outside sugarcane harvest season. The biomass/energy system will produce 123,230,000 L (32,830,000 gal) of ethanol per year with 90% conversion of sugars from juice, hemicellulose, and cellulose to ethanol. Estimated cost of producing ethanol form various feedstocks include: sugarcane $0.25/L ($0.94/gal), elephantgrass $0.30/L ($1.13/gal), 1 leucaena $0.28/L ($1.06/gal), and Eucalyptus $0.28/L (1.07/gal). Future opportunities exist for development of a chemical industry based on lignocellulose materials from biomass.

Stricker, J.A.; Rahmani, M.; Hodges, A.W. [Univ. of Florida, Gainesville, FL (United States)] [and others

1995-11-01T23:59:59.000Z

85

Performance testing and economic analysis of a photovoltaic flywheel energy storage and conversion system  

SciTech Connect

A subscale prototype of a flywheel energy storage and conversion system for use with photovoltaic power systems of residential and intermediate load-center size has been designed, built and tested by MIT Lincoln Laboratory. System design, including details of such key components as magnetic bearings, motor generator, and power conditioning electronics, is described. Performance results of prototype testing are given and indicate that this system is the equal of or superior to battery-inverter systems for the same application. Results of cost and user-worth analysis show that residential systems are economically feasible in stand-alone and in some utility-interactive applications.

Hay, R.D.; Millner, A.R.; Jarvinen, P.O.

1980-01-01T23:59:59.000Z

86

System design, test results, and economic analysis of a flywheel energy storage and conversion system for photovoltaic applications  

SciTech Connect

MIT Lincoln Laboratory is developing a flywheel interface and storage system for use with photovoltaic power sources. Test data on the performance of components built to investigate the feasibility of such a system, and the results of economic studies of the system showing user-worth analysis and manufacturing-cost estimates, are presented. The system has magnetic bearings, a maximum-power-point tracker, DC input, and cycloconverter output from an ironless-armature motor-generator.

Millner, A.R.; Dinwoodie, T.

1980-01-01T23:59:59.000Z

87

Nuclear-Renewable Hybrid System Economic Basis for Electricity, Fuel, and Hydrogen  

SciTech Connect

Concerns about climate change and altering the ocean chemistry are likely to limit the use of fossil fuels. That implies a transition to a low-carbon nuclear-renewable electricity grid. Historically variable electricity demand was met using fossil plants with low capital costs, high operating costs, and substantial greenhouse gas emissions. However, the most easily scalable very-low-emissions generating options, nuclear and non-dispatchable renewables (solar and wind), are capital-intensive technologies with low operating costs that should operate at full capacities to minimize costs. No combination of fully-utilized nuclear and renewables can meet the variable electricity demand. This implies large quantities of expensive excess generating capacity much of the time. In a free market this results in near-zero electricity prices at times of high nuclear renewables output and low electricity demand with electricity revenue collapse. Capital deployment efficiency—the economic benefit derived from energy systems capital investment at a societal level—strongly favors high utilization of these capital-intensive systems, especially if low-carbon nuclear renewables are to replace fossil fuels. Hybrid energy systems are one option for better utilization of these systems that consumes excess energy at times of low prices to make some useful product.The economic basis for development of hybrid energy systems is described for a low-carbon nuclear renewable world where much of the time there are massivequantities of excess energy available from the electric sector.Examples include (1) high-temperature electrolysis to generate hydrogen for non-fossil liquid fuels, direct use as a transport fuel, metal reduction, etc. and (2) biorefineries.Nuclear energy with its concentrated constant heat output may become the enabling technology for economically-viable low-carbon electricity grids because hybrid nuclear systems may provide an economic way to produce dispatachable variable electricity with economic base-load operation of the reactor.

Charles Forsberg; Steven Aumeier

2014-04-01T23:59:59.000Z

88

Thermal Economic Analysis of an Underground Water Source Heat Pump System  

E-Print Network (OSTI)

The paper presents the thermal economic analysis of an underground water source heat pump system in a high school building based on usage per exergy cost as an evaluation standard, in which the black box model has been used and the cost...

Zhang, W.; Lin, B.

2006-01-01T23:59:59.000Z

89

SYSTEM WIDE ECONOMIC BENEFITS OF DISTRIBUTED GENERATION IN THE NEW ENGLAND  

E-Print Network (OSTI)

SYSTEM WIDE ECONOMIC BENEFITS OF DISTRIBUTED GENERATION IN THE NEW ENGLAND ENERGY MARKET-1027 © Copyright by CEERE #12;1. INTRODUCTION Distributed generation (DG) is generation of electricity close was to evaluate the benefits and costs associated with a distributed generation unit from the perspectives

Massachusetts at Amherst, University of

90

An economic comparison and evaluation of two geothermal district heating systems for advanced exergoeconomic analysis  

Science Journals Connector (OSTI)

Abstract This paper refers to an economic comparison and evaluation of two geothermal district heating systems (GDHSs) under same reference state condition and mechanic/economic parameters by using an advanced exergoeconomic analysis. In this analysis, costs of investment and exergy destruction of each component for the thermal systems such as the Afyon and Sarayköy \\{GDHSs\\} were split into endogenous/exogenous and unavoidable/avoidable parts, and were also compared with each other for the first time. The results obtained show that the advanced exergoeconomic analysis makes the information more accurate and useful, and supplies additional information that cannot be provided by the conversional analysis. Furthermore, the Afyon GDHS can be made more cost effectiveness, removing the system components’ irreversibilities, technical-economic limitations, and poorly chosen manufacturing methods, according to the Sarayköy GDHS. The majority of the components in the Sarayköy GDHS are to operate more economically than those in the Afyon GDHS. As a result, the usefulness of this method was clearly demonstrated comparing both the systems.

P?nar Keçeba?; Harun Gökgedik; Mehmet Ali Alkan; Ali Keçeba?

2014-01-01T23:59:59.000Z

91

IEEE TRANSACTIONS ON POWER SYSTEMS 1 Economic Impact of Electricity Market Price  

E-Print Network (OSTI)

IEEE TRANSACTIONS ON POWER SYSTEMS 1 Economic Impact of Electricity Market Price Forecasting Errors to forecast electricity market prices and improve forecast accuracy. However, no studies have been reported, the application of electricity market price forecasts to short-term operation scheduling of two typical

Cañizares, Claudio A.

92

Impacts of Regional Electricity Prices and Building Type on the Economics of Commercial Photovoltaic Systems  

SciTech Connect

To identify the impacts of regional electricity prices and building type on the economics of solar photovoltaic (PV) systems, 207 rate structures across 77 locations and 16 commercial building types were evaluated. Results for expected solar value are reported for each location and building type. Aggregated results are also reported, showing general trends across various impact categories.

Ong, S.; Campbell, C.; Clark, N.

2012-12-01T23:59:59.000Z

93

Techno-economic analysis of coal gasification based co-production systems  

Science Journals Connector (OSTI)

Abstract Coal gasification based co-production systems are increasing popular in the world because they are assumed to be advantageous in energy efficiency and economic cost. However, there has been seldom researches on quantifying these advantages. In this paper, the co-prouction systems are analyzed from the technical and ecnomic point of views. During the study, the co-production system, of which the products are electricity and methanol, is modeled and simulated. For analysis, the energy analysis model and the economy analysis model are established. Results show that the co-production system has higher energy efficiency and less capital expenditure than tranditional single production systems.

Siyu Yang; Hengchong Li; Yu Qian

2012-01-01T23:59:59.000Z

94

The Impact of Retail Rate Structures on the Economics of Commercial Photovoltaic Systems in California  

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

To achieve a sizable and self-sustaining market for grid-connected, customer-sited photovoltaic (PV) systems, solar will likely need to be competitive with retail electricity rates. In this report, we examine the impact of retail rate design on the economic value of commercial PV systems in California. Using 15-minute interval building load and PV production data from 24 actual commercial PV installations, we compare the value of the bill savings across 20 commercial customer retail rates currently offered in the state. We find that the specifics of the rate structure, combined with the characteristics of the customer’s underlying load and the size of the PV system, can have a substantial impact on the customer-economics of commercial PV systems.

95

Solar Technology Assessment Project. Volume IX. Heliostat systems: technical and economic assessment  

SciTech Connect

An extensive review of the literature is provided on heliostat central receiver systems including subsystem design and research experiments, full scale system designs, assessments, evaluations, rankings, application and marketing studies, and heliostat manufacturing studies. The current status of heliostat system development is reviewed and assessed. Recent design reports are examined, and expected economic and performance improvements are reported. Recommendations are made for the role that government can play in heliostat systems development, and for state and federal policies for development of solar commercialization and the formation of heating utilities. (LEW)

Hildebrandt, A.F.; Laurence, C.L.

1981-04-01T23:59:59.000Z

96

Thermal and economical analysis of a central solar heating system with underground seasonal storage in Turkey  

Science Journals Connector (OSTI)

Thermal performance and economic feasibility of two types of central solar heating system with seasonal storage under four climatically different Turkey locations are investigated. The effects of storage volume and collector area on the thermal performance and cost are studied for three load sizes. The simulation model of the system consisting of flat plate solar collectors, a heat pump, under ground storage tank and heating load based on a finite element analysis and finite element code ANSYS™ is chosen as a convenient tool. In this study, the lowest solar fraction value for Trabzon (41°N) and the highest solar fraction value for Adana (37°N) are obtained. Based on the economic analysis, the payback period of system is found to be about 25–35 years for Turkey.

A. Ucar; M. Inalli

2005-01-01T23:59:59.000Z

97

Economics Undergraduate BSc Economics  

E-Print Network (OSTI)

Economics Undergraduate BSc Economics BSc Economics and Politics #12;www.bath.ac.uk/economics Welcome to the Department of Economics The Department has a strong international research reputation in mainstream economics. Our teaching is internationally respected and our students are in demand by employers

Burton, Geoffrey R.

98

Economics Postgraduate MSc Economics  

E-Print Network (OSTI)

Economics Postgraduate MSc Economics MSc Economics & Finance MSc International Money & Banking #12;www.bath.ac.uk/economics Welcome to the Department of Economics The Department offers a range. The Department has a strong international research reputation in mainstream economics. Our teaching and research

Burton, Geoffrey R.

99

Economic analysis of exergy efficiency based control strategy for geothermal district heating system  

Science Journals Connector (OSTI)

Abstract In this study, the exergy efficiency based control strategy (ExEBCS) for exergy efficiency maximization in geothermal district heating systems (GDHSs) is economically evaluated. As a real case study, the Afyon GDHS in the city of Afyonkarahisar/Turkey is considered. Its actual thermal data as of average weekly data are collected in heating seasons during the period 2006–2010 for artificial neural network (ANN) modeling. The ANN modeling of the Afyon GDHS is used as a test system to demonstrate the effectiveness and economic impact of the ExEBCS under various operating conditions. Then, the ExEBCS is evaluated economically in case of application to real Afyon GDHS of the ExEBCS. The results show that the initial cost for the ExEBCS is more expensive than that for the old one by 6.33 kUS$/year as a result of replacing automatic controller. The saving in heat production makes the ExEBCS profitable by up to 7% of annual energy saving as a result of the increase in the heat production by 88% when the control system is operated. This results in a short payback period of 3.8 years. This study confirms that the use of ExEBCS in district heating systems (especially GDHS) is quite suitable.

Ali Keçeba?; ?smail Yabanova

2013-01-01T23:59:59.000Z

100

Automatic Control Technology in the HVAC System  

Science Journals Connector (OSTI)

In the field of VAV air-conditioning system (Variable Air Volume, VAV) control theory and practical study, the paper analyzed the methods used by the China's VAV control procedures including Static Pressure Control, Variable Pressure Control and Total ...

Ren Tao; Gao Jingmin; Jia Wenwen

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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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101

A parametric and economic investigation of an energy system utilizing aquifer storage  

E-Print Network (OSTI)

-Chairman of Committee) (Co-Chairman of Committee) (He d. of Department (Member) e ber) December 1980 ABSTRACT A Parametric and Economic Investigation of an Energy System Utilizing Aquifer Storage. (Dec. 1980) Stephen Gilbert Tostengard B. S. , Texas Lutheran... College Co-Chairmen of Advisory Committee: Or. Richard R. Davison Dr. William B. Harris Aquifers may be used as long-term storage facilities i'or heated or chilled water. Computer models were used to simulate the thermal response of an aquafer...

Tostengard, Stephen Gilbert

1980-01-01T23:59:59.000Z

102

Numerical Analysis of a Cold Air Distribution System  

E-Print Network (OSTI)

Cold air distribution systems may reduce the operating energy consumption of air-conditioned air supply system and improve the outside air volume percentages and indoor air quality. However, indoor temperature patterns and velocity field are easily...

Zhu, L.; Li, R.; Yuan, D.

2006-01-01T23:59:59.000Z

103

Use of Time-Aggregated Data in Economic Screening Analyses of Combined Heat and Power Systems  

SciTech Connect

Combined heat and power (CHP) projects (also known as cogeneration projects) usually undergo a series of assessments and viability checks before any commitment is made. A screening analysis, with electrical and thermal loads characterized on an annual basis, may be performed initially to quickly determine the economic viability of the proposed project. Screening analyses using time-aggregated data do not reflect several critical cost influences, however. Seasonal and diurnal variations in electrical and thermal loads, as well as time-of-use utility pricing structures, can have a dramatic impact on the economics. A more accurate economic assessment requires additional detailed data on electrical and thermal demand (e.g., hourly load data), which may not be readily available for the specific facility under study. Recent developments in CHP evaluation tools, however, can generate the needed hourly data through the use of historical data libraries and building simulation. This article utilizes model-generated hourly load data for four potential CHP applications and compares the calculated cost savings of a CHP system when evaluated on a time-aggregated (i.e., annual) basis to the savings when evaluated on an hour-by-hour basis. It is observed that the simple, aggregated analysis forecasts much greater savings (i.e., greater economic viability) than the more detailed hourly analysis. The findings confirm that the simpler tool produces results with a much more optimistic outlook, which, if taken by itself, might lead to erroneous project decisions. The more rigorous approach, being more reflective of actual requirements and conditions, presents a more accurate economic comparison of the alternatives, which, in turn, leads to better decision risk management.

Hudson II, Carl Randy [ORNL

2004-09-01T23:59:59.000Z

104

Economic Analysis of a Brackish Water Photovoltaic-Operated (BWRO-PV) Desalination System: Preprint  

SciTech Connect

The photovoltaic (PV)-powered reverse-osmosis (RO) desalination system is considered one of the most promising technologies in producing fresh water from both brackish and sea water, especially for small systems located in remote areas. We analyze the economic viability of a small PV-operated RO system with a capacity of 5 m3/day used to desalinate brackish water of 4000 ppm total dissolve solids, which is proposed to be installed in a remote area of the Babylon governorate in the middle of Iraq; this area possesses excellent insolation throughout the year. Our analysis predicts very good economic and environmental benefits of using this system. The lowest cost of fresh water achieved from using this system is US $3.98/ m3, which is very reasonable compared with the water cost reported by small-sized desalination plants installed in rural areas in other parts of the world. Our analysis shows that using this small system will prevent the release annually of 8,170 kg of CO2, 20.2 kg of CO, 2.23 kg of CH, 1.52 kg of particulate matter, 16.41 kg of SO2, and 180 kg of NOx.

Al-Karaghouli, A.; Kazmerski, L. L.

2010-10-01T23:59:59.000Z

105

Energetic and economic evaluations of geothermal district heating systems by using ANN  

Science Journals Connector (OSTI)

This paper proposes an artificial neural network (ANN) technique as a new approach to evaluate the energy input, losses, output, efficiency, and economic optimization of a geothermal district heating system (GDHS). By using ANN, an energetic analysis is evaluated on the Afyon geothermal district heating system (AGDHS) located in the city of Afyonkarahisar, Turkey. Promising results are obtained about the economic evaluation of that system. This has been used to determine if the existing system is operating at its optimal level, and will provide information about the optimal design and profitable operation of the system. The results of the study show that the ANN model used for the prediction of the energy performance of the AGDHS has good statistical performance values: a correlation coefficient of 0.9983 with minimum RMS and MAPE values. The total cost for the AGDHS is profitable when the PWF is higher than 7.9. However, the PWF of the AGDHS was found to be 1.43 for the given values. As a result, while installing a GDHS, one should take into account the influences of the PWF, ambient temperature and flow rate on the total costs of the system in any location where it is to be established.

Ali Keçeba?; Mehmet Ali Alkan; ?smail Yabanova; Mehmet Yumurtac?

2013-01-01T23:59:59.000Z

106

Techno-economic evaluation of hybrid energy storage technologies for a solar–wind generation system  

Science Journals Connector (OSTI)

Huazhong University of Science and Technology is planning to establish a hybrid solar–wind generation dynamic simulation laboratory. Energy storage technologies will be vital to this system for load leveling, power quality control and stable output. In this paper, the technical feasibility of energy storage technologies for renewable intermittent sources like wind and solar generation is analyzed. Furthermore, the different combination modes of energy storage technologies are proposed. The involved energy storage technologies include superconducting magnetic energy storage systems (SMESs), flywheels (FWs), electrochemical super-capacitors (SCs) and redox flow batteries (RFBs). Based on that, the economic analysis of hybrid energy storage technologies is conducted.

L. Ren; Y. Tang; J. Shi; J. Dou; S. Zhou; T. Jin

2013-01-01T23:59:59.000Z

107

Technical and economic analysis of different cogeneration systems for energy production from biomass  

Science Journals Connector (OSTI)

This paper compares the results of a techno-economic performance analysis of seven plants for energy production from biomass with the aim of identifying the most effective solution. Small (?250 KWe) and micro (?100 KWe) size plants were investigated: 50 kWe diesel internal combustion engine coupled with a gasifier and 35 kWe Stirling engine coupled with a gasifier with an overall efficiency of 41.1% and 87.5% respectively, two biomass cogenerators, one of 25 kWe and the other of 100 kWe, 250 kWe Otto internal combustion engine coupled with a gasifier and 250 kWe diesel internal combustion engine coupled with a gasifier and 238 kWe biomass ORC plant. The technical analysis provided calculations for specific biomass consumption, electricity generation, heat produced and overall system efficiency. The economic evaluation was carried on through a discounted cash flow analysis. Data were provided by literature, analysis of case study at Italian and European level, and directly by the manufacturers of cogeneration systems. The results showed that a combined heat and power (CHP) generator is the best solution because it is economically viable with a high NPV and a PBP of five years and also technically performing with a global efficiency of 78.2% and a low biomass consumption.

Giancarlo Giacchetta; Mariella Leporini; Barbara Marchetti

2014-01-01T23:59:59.000Z

108

Environmental and economic analysis of building integrated photovoltaic systems in Italian regions  

Science Journals Connector (OSTI)

Abstract Solar energy is a form of renewable energy that can be used to combat climate change through an environmentally accepted energy supply policy with support from both private and public consumers. There are numerous factors contributing to the definition of the economic and environmental performance of solar energy investments, such as average annual irradiation, consumers' consumption, Feed in Tariff incentive system, energy portfolio, emissions produced by the photovoltaic system, rated power of the individual modules, disposable income of the investor, availability of surface for the installation of the photovoltaic panels and mission, that characterise the project (environmental maximisation, economic maximisation or self-sufficiency of the system during the first year). Given the particular geographical position of Italy, the economic profitability and environmental impact of such system were estimated, first on the provincial scale and then on the regional scale, to delineate the general characteristics that are not caused by a single scenario. The indicators used include the following: net present value (NPV), internal rate of return (IRR), discounted payback period (DPbP), discounted aggregate cost-benefit ratio (BCr) and reduction of emissions of carbon dioxide (ERcd). The ultimate objective of the paper is to define the number of photovoltaic (PV) systems necessary to reach the target of renewable energy production in the above settings. A general scenario appropriate to achieve this goal, as well as implementing the total wealth generated by this framework and the reduction of CO2 emissions resulting from the implementation of that plan, will be examined. The indicators used are total net present value per capita and reduction of carbon dioxide emissions per capita.

Federica Cucchiella; Idiano D'Adamo; S.C. Lenny Koh

2013-01-01T23:59:59.000Z

109

Energetic, exergetic, economic and environmental evaluations of geothermal district heating systems: An application  

Science Journals Connector (OSTI)

This study deals with an energetic and exergetic analysis as well as economic and environmental evaluations of Afyon geothermal district heating system (AGDHS) in Afyon, Turkey. In the analysis, actual system data are used to assess the district heating system performance, energy and exergy efficiencies, specific exergy index, exergetic improvement potential and exergy losses. And, for economic and environmental evaluations, actual data are obtained from the Technical Departments. The energy and exergy flow diagrams are clearly drawn to illustrate how much destructions/losses take place in addition to the inputs and outputs. For system performance analysis and improvement, both energy and exergy efficiencies of the overall AGDHS are determined to be 34.86% and 48.78%, respectively. The efficiency improvements in heat and power systems can help achieving energy security in an environmentally acceptable way by reducing the emissions that might otherwise occur. Present application has shown that in Turkey, geothermal energy is much cheaper than the other energy sources, like fossil fuels, and makes a significant contribution towards reducing the emissions of air pollution.

Ali Keçeba?

2013-01-01T23:59:59.000Z

110

Performance and Economic Analysis of Distributed Power Electronics in Photovoltaic Systems  

SciTech Connect

Distributed electronics like micro-inverters and DC-DC converters can help recover mismatch and shading losses in photovoltaic (PV) systems. Under partially shaded conditions, the use of distributed electronics can recover between 15-40% of annual performance loss or more, depending on the system configuration and type of device used. Additional value-added features may also increase the benefit of using per-panel distributed electronics, including increased safety, reduced system design constraints and added monitoring and diagnostics. The economics of these devices will also become more favorable as production volume increases, and integration within the solar panel?s junction box reduces part count and installation time. Some potential liabilities of per-panel devices include increased PV system cost, additional points of failure, and an insertion loss that may or may not offset performance gains under particular mismatch conditions.

Deline, C.; Marion, B.; Granata, J.; Gonzalez, S.

2011-01-01T23:59:59.000Z

111

Prognostic Health Monitoring System: Component Selection Based on Risk Criteria and Economic Benefit Assessment  

SciTech Connect

Prognostic health monitoring (PHM) is a proactive approach to monitor the ability of structures, systems, and components (SSCs) to withstand structural, thermal, and chemical loadings over the SSCs planned service lifespans. The current efforts to extend the operational license lifetime of the aging fleet of U.S. nuclear power plants from 40 to 60 years and beyond can benefit from a systematic application of PHM technology. Implementing a PHM system would strengthen the safety of nuclear power plants, reduce plant outage time, and reduce operation and maintenance costs. However, a nuclear power plant has thousands of SSCs, so implementing a PHM system that covers all SSCs requires careful planning and prioritization. This paper therefore focuses on a component selection that is based on the analysis of a component's failure probability, risk, and cost. Ultimately, the decision on component selection depend on the overall economical benefits arising from safety and operational considerations associated with implementing the PHM system.

Binh T. Pham; Vivek Agarwal; Nancy J Lybeck; Magdy S Tawfik

2012-05-01T23:59:59.000Z

112

Potential and economic viability of standalone hybrid systems for a rural community of Sokoto, North-west Nigeria  

Science Journals Connector (OSTI)

An assessment of the potential and economic viability of standalone hybrid systems for an off-grid rural community of ... Meteorological Department, Oshodi, Lagos (daily mean wind speeds, and daily global solar r...

O. D. Ohijeagbon; Oluseyi. O. Ajayi

2014-06-01T23:59:59.000Z

113

Techno-Economic Assessment of Polymer Membrane Systems for Postcombustion Carbon Capture at Coal-Fired Power Plants  

Science Journals Connector (OSTI)

Techno-Economic Assessment of Polymer Membrane Systems for Postcombustion Carbon Capture at Coal-Fired Power Plants ... The HHVs for three coals are 30?840, 19?400, and 14?000 kJ/kg, respectively. ...

Haibo Zhai; Edward S. Rubin

2013-02-13T23:59:59.000Z

114

FEED SYSTEM INNOVATION FOR GASIFICATION OF LOCALLY ECONOMICAL ALTERNATIVE FUELS (FIGLEAF)  

SciTech Connect

The Feed System Innovation for Gasification of Locally Economical Alternative Fuels (FIGLEAF) project was conducted by the Energy & Environmental Research Center and Gasification Engineering Corporation of Houston, Texas (a subsidiary of Global Energy Inc., Cincinnati, Ohio), with 80% cofunding from the U.S. Department of Energy (DOE). The goal of the project was to identify and evaluate low-value fuels that could serve as alternative feedstocks and to develop a feed system to facilitate their use in integrated gasification combined-cycle and gasification coproduction facilities. The long-term goal, to be accomplished in a subsequent project, is to install a feed system for the selected fuel(s) at Global Energy's commercial-scale 262-MW Wabash River Coal Gasification Facility in West Terre Haute, Indiana. The feasibility study undertaken for the project consisted of identifying and evaluating the economic feasibility of potential fuel sources, developing a feed system design capable of providing a fuel at 400 psig to the second stage of the E-Gas (Destec) gasifier to be cogasified with coal, performing bench- and pilot-scale testing to verify concepts and clarify decision-based options, reviewing information on high-pressure feed system designs, and determining the economics of cofeeding alternative feedstocks with the conceptual feed system design. A preliminary assessment of feedstock availability within Indiana and Illinois was conducted. Feedstocks evaluated included those with potential tipping fees to offset processing cost: sewage sludge, municipal solid waste, used railroad ties, urban wood waste (UWW), and used tires/tire-derived fuel. Agricultural residues and dedicated energy crop fuels were not considered since they would have a net positive cost to the plant. Based on the feedstock assessment, sewage sludge was selected as the primary feedstock for consideration at the Wabash River Plant. Because of the limited waste heat available for drying and the ability of the gasifier to operate with alternative feedstocks at up to 80% moisture, a decision was made to investigate a pumping system for delivering the as-received fuel across the pressure boundary into the second stage of the gasifier. A high-pressure feed pump and fuel dispersion nozzles were tested for their ability to cross the pressure boundary and adequately disperse the sludge into the second stage of the gasifier. These results suggest that it is technically feasible to get the sludge dispersed to an appropriate size into the second stage of the gasifier although the recycle syngas pressure needed to disperse the sludge would be higher than originally desired. A preliminary design was prepared for a sludge-receiving, storage, and high-pressure feeding system at the Wabash River Plant. The installed capital costs were estimated at approximately $9.7 million, within an accuracy of {+-}10%. An economic analysis using DOE's IGCC Model, Version 3 spreadsheet indicates that in order to justify the additional capital cost of the system, Global Energy would have to receive a tipping fee of $12.40 per wet ton of municipal sludge delivered. This is based on operation with petroleum coke as the primary fuel. Similarly, with coal as the primary fuel, a minimum tipping of $16.70 would be required. The availability of delivered sludge from Indianapolis, Indiana, in this tipping-fee range is unlikely; however, given the higher treatment costs associated with sludge treatment in Chicago, Illinois, delivery of sludge from Chicago, given adequate rail access, might be economically viable.

Michael L. Swanson; Mark A. Musich; Darren D. Schmidt; Joseph K. Schultz

2003-02-01T23:59:59.000Z

115

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

116

The Impact of Retail Rate Structures on the Economics of Commercial Photovoltaic Systems in California  

SciTech Connect

This article examines the impact of retail electricity rate design on the economic value of grid-connected photovoltaic (PV) systems, focusing on commercial customers in California. Using 15-minute interval building load and PV production data from a sample of 24 actual commercial PV installations, we compare the value of the bill savings across 20 commercial-customer retail electricity rates currently offered in the state. Across all combinations of customers and rates, we find that the annual bill savings from PV, per kWh generated, ranges from $0.05/kWh to $0.24/kWh. This sizable range in rate-reduction value reflects differences in rate structures, revenue requirements, the size of the PV system relative to building load, and customer load shape. The most significant rate design issue for the value of commercial PV is found to be the percentage of total utility bills recovered through demand charges, though a variety of other factors are also found to be of importance. The value of net metering is found to be substantial, but only when commercial PV systems represent a sizable portion of annual customer load. Though the analysis presented here is specific to California, our general results demonstrate the fundamental importance of retail rate design for the customer-economics of grid-connected, customer-sited PV.

Mills, Andrew; Wiser, Ryan; Barbose, Galen; Golove, William

2008-05-11T23:59:59.000Z

117

The impact of retail rate structures on the economics of commercial photovoltaic systems in California  

SciTech Connect

This article examines the impact of retail electricity rate design on the economic value of grid-connected photovoltaic (PV) systems, focusing on commercial customers in California. Using 15-min interval building load and PV production data from a sample of 24 actual commercial PV installations, we compare the value of the bill savings across 20 commercial-customer retail electricity rates currently offered in the state. Across all combinations of customers and rates, we find that the annual bill savings from PV, per kWh generated, ranges from $0.05 to $0.24/kWh. This sizable range in rate-reduction value reflects differences in rate structures, revenue requirements, the size of the PV system relative to building load, and customer load shape. The most significant rate design issue for the value of commercial PV is found to be the percentage of total utility bills recovered through demand charges, though a variety of other factors are also found to be of importance. The value of net metering is found to be substantial, but only when energy from commercial PV systems represents a sizable portion of annual customer load. Though the analysis presented here is specific to California, our general results demonstrate the fundamental importance of retail rate design for the customer-economics of grid-connected, customer-sited PV.

Mills, Andrew D.; Wiser, Ryan; Barbose, Galen; Golove, William

2008-06-24T23:59:59.000Z

118

Economic assessment of geothermal district heating systems: A case study of Balcova–Narlidere, Turkey  

Science Journals Connector (OSTI)

Geothermal energy is an important renewable energy resource in Turkey. The aim of this research is to evaluate the Balcova–Narlidere geothermal district heating system from an economic perspective. The system is the largest one in Turkey in terms of heating capacity and located in Izmir. Although there are some assessments regarding energy and exergy analysis for the Balcova–Narlidere geothermal district heating system, an economic assessment was not performed, previously. The profitability of the investment is investigated by using internal rate of return method. Seven hundred and eighty different scenarios are developed in this assessment. In order to estimate the potential cash flows in the remaining project life, operating cost in 2002 is decreased and increased, alternatively, between 5% and 30% by 5% in each step, while monthly energy utilization price is changed between US$ 17 and 72 in those scenarios. The energy utilization prices are suggested according to zero IRR value for all scenarios due to the consideration of social and environmental concerns in this investment. It is found that, the proper monthly energy utilization price for a 100 m2 household would be US$ 55.5 when the operating cost and heating capacity in 2002 were remained constant.

Berkan Erdogmus; Macit Toksoy; Baris Ozerdem; Niyazi Aksoy

2006-01-01T23:59:59.000Z

119

Commissioning and Diagnosis of VAV Air-Conditioning Systems  

E-Print Network (OSTI)

This paper presents a fault detection and diagnosis (FDD) strategy based on system knowledge, qualitative states and object-oriented statistical process control (SPC) models for typical pressure-independent variable air volume (VAV) air...

Qin, J.; Wang, S.; Chan, C.; Xiao, F.

2006-01-01T23:59:59.000Z

120

Economic analysis of community solar heating systems that use annual cycle thermal energy storage  

SciTech Connect

The economics of community-scale solar systems that incorporate a centralized annual cycle thermal energy storage (ACTES) coupled to a distribution system is examined. Systems were sized for three housing configurations: single-unit dwellings, 10-unit, and 200-unit apartment complexes in 50-, 200-, 400-, and 1000-unit communities in 10 geographic locations in the United States. Thermal energy is stored in large, constructed, underground tanks. Costs were assigned to each component of every system in order to allow calculation of total costs. Results are presented as normalized system costs per unit of heat delivered per building unit. These methods allow: (1) identification of the relative importance of each system component in the overall cost; and (2) identification of the key variables that determine the optimum sizing of a district solar heating system. In more northerly locations, collectors are a larger component of cost. In southern locations, distribution networks are a larger proportion of total cost. Larger, more compact buildings are, in general, less expensive to heat. For the two smaller-scale building configurations, a broad minima in total costs versus system size is often observed.

Baylin, F.; Monte, R.; Sillman, S.; Hooper, F.C.; McClenahan, J.D.

1981-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

Performance analysis of supply and return fans for HVAC systems under different operating strategies of economizer dampers  

Science Journals Connector (OSTI)

HVAC systems and associated equipment consume a relatively large fraction of total building energy consumption, a significant portion of which is attributed to fan operation. The operation of economizer dampers when installed can cause high energy consumption in fans if they are not functioning in proper and optimal manner. This will mainly be due to the potential high pressure drops through those dampers and associated high total pressures that should be developed by supply and/or return fans. It is then necessary to ensure that a proper strategy to operate optimally the economizer dampers is implemented with minimum fan energy use. The paper examines several operation strategies of the economizer dampers and investigates their effects on the performance of both the supply and return fans in HVAC system. It also discusses a new operating strategy for economizer dampers that can lead to lower fan energy use. The strategies are evaluated by simulations for a typically existing HVAC system. Several factors such as the building locations, system characteristics, resistance in the duct where the dampers are installed, supply air temperature and economizer control, and minimum ventilation requirements are also considered during the evaluations. The results show that the way of the economizer dampers been controlled has a significant effect on fan performance and its energy use. The proposed strategy if properly implemented can provide fan energy saving in the range of 5–30%, depending mainly on the number of hours when the system operates in the free cooling mode, damper characteristics, and minimum outdoor air.

Nabil Nassif

2010-01-01T23:59:59.000Z

122

Production Hall and Inventory Shade Lighting by Solar Energy System and Economical Lighting (LEDs)  

Science Journals Connector (OSTI)

Due to the increasing energy and environmental concern in the world, one must look for alternatives to nonrenewable energy resources and the polluting fossil fuels. The renewable energy sources play an important role in electricity generation as well as many other useful applications. Various renewable energy sources like wind, solar, geothermal, ocean thermal and biomass can be used for generating electricity and meeting our daily energy demands. The solar energy can produce most of the world's requirements of the energy that is produced by the sun and collected on earth. Clean and sustainable energy protect our environment. The solar energy system with economical lighting (LEDs) can be used for lighting the production hall and inventory stores to reduce the energy consumption (watts) to less than a quarter of the normal consumption (high pressure, light HPL) and that will reduce the cost of energy. In addition, using the sun tracker will increase the efficiency of overall daily output of the solar panels more than 34% of the fixed panel. This will make the system more reliable and more economical.

Ahmad K. Jassim; Fouad K. Abood

2012-01-01T23:59:59.000Z

123

Technical and economical assessment of the utilization of photovoltaic systems in residential buildings: The case of Jordan  

Science Journals Connector (OSTI)

This paper studies the feasibility of utilizing photovoltaic systems in a standard residential apartment in Amman city in Jordan. Data on solar radiation, sunshine duration and the ambient temperature has been recorded in Amman city. An apartment in Amman was chosen as a case study to conduct energy and economic calculations. The electrical power needs and cost were calculated for the apartment. The component design and cost of PV system required to supply required energy was calculated and the payback period for the suggested stand-alone PV system in this paper was estimated in a constant inflation rate in electricity price similar to that of interest rate. The calculated payback period was high in a stand-alone system, to decrease payback period a grid-connected PV system is suggested. Considering an annual increase of 3% in electricity price, 15% of payback period was decreased in a stand-alone PV system and 21% in a grid-connected PV system. The output results of this study show that installation of PV system in a residential flat in Jordan may not be economically rewarding owing to the high cost of PV system compared to the cost of grid electricity. A feed-in tariff law of solar electricity may help to reduce PV system cost like the case of Germany. Additional conclusions are PV systems may be economically rewarding in Jordan if applied in locations far from electrical grid or in remote large scale PV power installations to overcome economical limitations of PV technology.

A. Al-Salaymeh; Z. Al-Hamamre; F. Sharaf; M.R. Abdelkader

2010-01-01T23:59:59.000Z

124

Economical investigation of an integrated boiler–solar energy saving system in Jordan  

Science Journals Connector (OSTI)

Jordan is relatively poor in conventional energy resources and is basically a non-oil producing country, i.e. its energy supply relies to a very large extent on imports. It is therefore unlikely that any future energy scenario for Jordan will not include a significant proportion of its energy to come from renewable sources such as solar energy. The lack of an integrated energy saving system which utilizes the solar energy for domestic hot water as well as for building space heating was the main motivation for the present study. In Jordan, there is no existing system can provide the integration mechanisms of solar energy and fuel combustion with electrical ones. Also adding new and related products increases sales of current boilers products and can be offered at competitive prices. During our investigations, it has been found that the market demand for boiler–solar integration system in terms of the system acceptability, system feasibility, and system values is very high especially after the increased in oil prices during the last 3 years, i.e. 2006–2008. The market trend shows that even though solar collector is not attractive as an energy source for domestic hot water, but the combined system for space heating and domestic hot water is fully accepted. However, the market demand for such a system is not completely identified yet but the awareness and the discussion of the idea shows a good potential. The economical study about the integration system of boiler and solar energy shows that using solar water heaters to heat space and for domestic water is cost-effective. Payback can be as low as 3 years, and utility bills are much lower than they would be using a conventional heating system. The initial draft and design of a prototype for the boiler–solar–electrical integration system has been carried out.

A. Al-Salaymeh; I. Al-Rawabdeh; S. Emran

2010-01-01T23:59:59.000Z

125

Economic evaluation of a residential photovoltaic system based on a probability model using actual meteorological data  

SciTech Connect

To design a photovoltaic (PV) generation system economically, it is necessary to use date of the total insolation on a horizontal surface. However, such data is only the total daily values and does not represent the power variation caused by the cloud cover. This paper presents the probability method which represents not only the average but also the variance of the PV generation power, and shows simulated results using this methodology. This study's results indicate that the distribution of the PV power divided by the estimated value of the total insolation on a tilted surface is similar to a normal distribution and that a residential (privately-owned) system without storage, whose PV capacity is more than 2 kWp, has little effect upon the reduction of the energy of an average Japanese household.

Sutoh, T.; Suzuki, H.; Sekine, Y.

1987-03-01T23:59:59.000Z

126

System Evaluation and Economic Analysis of a HTGR Powered High-Temperature Electrolysis Hydrogen Production Plant  

SciTech Connect

A design for a commercial-scale high-temperature electrolysis (HTE) plant for hydrogen production has been developed. The HTE plant is powered by a high-temperature gas-cooled reactor (HTGR) whose configuration and operating conditions are based on the latest design parameters planned for the Next Generation Nuclear Plant (NGNP). The current HTGR reference design specifies a reactor power of 600 MWt, with a primary system pressure of 7.0 MPa, and reactor inlet and outlet fluid temperatures of 322°C and 750°C, respectively. The power conversion unit will be a Rankine steam cycle with a power conversion efficiency of 40%. The reference hydrogen production plant operates at a system pressure of 5.0 MPa, and utilizes a steam-sweep system to remove the excess oxygen that is evolved on the anode (oxygen) side of the electrolyzer. The overall system thermal-to-hydrogen production efficiency (based on the higher heating value of the produced hydrogen) is 40.4% at a hydrogen production rate of 1.75 kg/s and an oxygen production rate of 13.8 kg/s. An economic analysis of this plant was performed with realistic financial and cost estimating assumptions. The results of the economic analysis demonstrated that the HTE hydrogen production plant driven by a high-temperature helium-cooled nuclear power plant can deliver hydrogen at a cost of $3.67/kg of hydrogen assuming an internal rate of return, IRR, of 12% and a debt to equity ratio of 80%/20%. A second analysis shows that if the power cycle efficiency increases to 44.4%, the hydrogen production efficiency increases to 42.8% and the hydrogen and oxygen production rates are 1.85 kg/s and 14.6 kg/s respectively. At the higher power cycle efficiency and an IRR of 12% the cost of hydrogen production is $3.50/kg.

Michael G. McKellar; Edwin A. Harvego; Anastasia A. Gandrik

2010-10-01T23:59:59.000Z

127

Thermodynamic and economic evaluations of a geothermal district heating system using advanced exergy-based methods  

Science Journals Connector (OSTI)

Abstract In this paper, a geothermal district heating system (GDHS) is comparatively evaluated in terms of thermodynamic and economic aspects using advanced exergy-based methods to identify the potential for improvement, the interactions among system components, and the direction and potential for energy savings. The actual operational data are taken from the Sarayköy GDHS, Turkey. In the advanced exergetic and exergoeconomic analyses, the exergy destruction and the total operating cost within each component of the system are split into endogenous/exogenous and unavoidable/avoidable parts. The advantages of these analyses over conventional ones are demonstrated. The results indicate that the advanced exergy-based method is a more meaningful and effective tool than the conventional one for system performance evaluation. The exergetic efficiency and the exergoeconomic factor of the overall system for the Sarayköy GDHS were determined to be 43.72% and 5.25% according to the conventional tools and 45.06% and 12.98% according to the advanced tools. The improvement potential and the total cost-savings potential of the overall system were also determined to be 2.98% and 14.05%, respectively. All of the pumps have the highest improvement potential and total cost-savings potential because the pumps were selected to have high power during installation at the Sarayköy GDHS.

Mehmet Tan; Ali Keçeba?

2014-01-01T23:59:59.000Z

128

Technical and economical system comparison of photovoltaic and concentrating solar thermal power systems depending on annual global irradiation  

Science Journals Connector (OSTI)

Concentrating solar thermal power and photovoltaics are two major technologies for converting sunlight to electricity. Variations of the annual solar irradiation depending on the site influence their annual efficiency, specific output and electricity generation cost. Detailed technical and economical analyses performed with computer simulations point out differences of solar thermal parabolic trough power plants, non-tracked and two-axis-tracked PV systems. Therefore, 61 sites in Europe and North Africa covering a global annual irradiation range from 923 to 2438 kW h/m2 a have been examined. Simulation results are usable irradiation by the systems, specific annual system output and levelled electricity cost. Cost assumptions are made for today's cost and expected cost in 10 years considering different progress ratios. This will lead to a cost reduction by 50% for PV systems and by 40% for solar thermal power plants. The simulation results show where are optimal regions for installing solar thermal trough and tracked PV systems in comparison to non-tracked PV. For low irradiation values the annual output of solar thermal systems is much lower than of PV systems. On the other hand, for high irradiations solar thermal systems provide the best-cost solution even when considering higher cost reduction factors for PV in the next decade. Electricity generation cost much below 10 Eurocents per kW h for solar thermal systems and about 12 Eurocents/kW h for PV can be expected in 10 years in North Africa.

Volker Quaschning

2004-01-01T23:59:59.000Z

129

Thermo-economic assessment of end user value in home and community scale renewable energy systems  

Science Journals Connector (OSTI)

This study employs thermo-economic analysis to establish a homeowner-centric valuation of renewable energy technologies. The evaluation methodology is illustrated using several classes of renewable energy technology including ground-source heat pumps wind turbines photovoltaic panels and solar thermal water heaters. Energy systems employing each of these technologies are examined when servicing the typical domestic energy loads of a single-detached home. Through the analysis it is learned that single-home photovoltaic systems produce energy at an annual cost approximately four times that of grid electricity while wind energy systems deliver this energy at approximately twice the cost of grid electricity. Further single-detached homeowners currently heating with fuel oil and/or grid electricity may expect to save between $1000 and $1800 per year when switching to a ground-source heat pump system; whereas those considering the implementation of a solar thermal water heater can expect to spend an additional $245 per year for hot water. Investigation of larger scale renewable systems examined the performance of wind turbines and ground-source heat pumps when serving groups of single-detached homes; wind turbines were found to exhibit significant economies of scale.

David Oliver; Dominic Groulx

2012-01-01T23:59:59.000Z

130

The effects of refueling system operating pressure on LNG and CNG economics  

SciTech Connect

Natural gas (NG) liquefaction and compression are energy intensive processes which make up a significant portion of the overall delivered price of liquefied NG (LNG) and compressed NG (CNG). Increases in system efficiency and/or process changes which reduce the required amount of work will improve the overall economics of NG as a vehicle fuel. This paper describes a method of reducing the delivered cost of LNG by liquefying the gas above ambient pressures. Higher pressure LNG is desirable because OEM NG engine manufacturers would like NG delivered to the engine intake manifold at elevated pressures to avoid compromising engine performance. Producing LNG at higher pressures reduces the amount of work required for liquefaction but it is only practical when the LNG is liquefied on-site. Using a thermo-economic approach, it is shown that NG fuel costs can be reduced by as much as 10% when producing LNG at higher pressures. A reduction in the delivered cost is also demonstrated for CNG produced on-site from high pressure LNG.

Corless, A.J.; Barclay, J.A. [Univ. of Victoria (Canada)

1996-12-31T23:59:59.000Z

131

Economic evaluation of demand response in power systems with high wind power penetration  

Science Journals Connector (OSTI)

The penetration of wind power generation is expected to increase in power systems dramatically. The unpredictable nature of the wind generation poses an obstacle to high penetration of wind energy in the electric power systems. Demand response (DR) may be considered as an efficient approach to cope with the energy unbalances caused by the wind power intermittency. Fair mechanism for pricing of the DR may increase the demand-side participation which consequently facilitates wind power integration in the power systems. This paper focuses on the economic evaluation of the DR according to its potential for mitigating the wind power forecast error in the power system operation. Demand increase similar to the demand curtailment is considered as a DR resource and evaluated in this paper. For this purpose first an insight is provided into the power system operation under the high wind power penetration with the aim of extracting the DR benefits. Based on the DR benefits a mathematical model is developed to find the maximum monetary incentive for the DR that the system operator is willing to pay to the DR providers. In the proposed model DR's potential in reducing the cost of supplying load as well as its capability in reducing the cost of system reserve start up and shut down of units load shedding and wind power spillage are considered. The results of the proposed evaluation method provide valuable information for both the system operator and demand response providers. The proposed method is implemented on an example and a realistic case study and discussions on results are presented.

2014-01-01T23:59:59.000Z

132

The Effect of PV Array Size and Battery Size on the Economics of PV/Diesel/Battery Hybrid RAPS Systems  

E-Print Network (OSTI)

Wh. INTRODUCTION A diesel hybrid system, incorporating a battery and inverter, can often provide power at a lower profile used for this study Fixed Power System Parameters The diesel and inverter were both sizedThe Effect of PV Array Size and Battery Size on the Economics of PV/Diesel/Battery Hybrid RAPS

133

Int. J. Environment and Pollution, V0/. IS, No.4, 2001 Economic evaluation of a landfill system with gas  

E-Print Network (OSTI)

Int. J. Environment and Pollution, V0/. IS, No.4, 2001 Economic evaluation of a landfill system. Landfill technology, as it is the most widely employed and is regarded as the most suitable and simple and externalities are examined. A cost-benefit analysis of a landfill system with gas recovery (LFSGR) has been

Columbia University

134

Economic feasibility and optimisation of an energy storage system for Portland Wind Farm (Victoria, Australia)  

Science Journals Connector (OSTI)

This paper presents the details of a theoretical study of the economic advantages of using large-scale energy storage to complement a wind farm in a base-load dominated electricity grid. A computer model is developed which simulates the operation of several energy storage systems when used with the 190-MW Portland Wind Farm (PWF) located in Portland, Victoria, Australia. A variety of operating strategies are compared with the results of a dynamic programming model which finds the maximum possible revenue which a given system can generate for a set of input conditions. Three energy storage systems are modelled and costed: Pumped Seawater Hydro Storage (PSHS), Compressed Air Energy Storage (CAES), and Thermal Energy Storage (TES). It is found that CAES is the most profitable storage medium, requiring a capital expenditure of A$140 M and generating a rate of return (ROR) of 15.4%. The ROR for PSHS was 9.6%, and for TES was 8.0%. Therefore, a significant investment opportunity exists for the installation of an energy storage system in this wind farm. It is therefore highly recommended that CAES is investigated further with the aim of introducing large-scale energy storage to PWF and other similar wind turbine installations.

Mir-Akbar Hessami; David R. Bowly

2011-01-01T23:59:59.000Z

135

Techno-Economic Evaluation of Using Different Air Inlet Cooling Systems in Gas Compressor Station  

Science Journals Connector (OSTI)

Abstract The purpose of this paper is to review the state of the art in applications for reducing the gas turbine intake air temperature and examine the merits from integration of the different air-cooling methods for 25 MW gas turbine based pipeline gas station . Four different intake air cooling methods have been applied in two pipeline gas stations. The calculations were performed on a yearly basis of operation. The case study is related to Dehshir and Kashan pipeline gas stations in Iran Gas Trunk line 8. The simulation has been performed in Thermoflex Software. Also, the Matlab code has been developed for thermodynamic simulation and exergoeconomic analysis of different scenarios. Finally, the thermodynamic, economics and exergoeconomic parameters for integration of the different cooling systems were calculated and compared.

V. Mazhari; S. Khamis Abadi; H. Ghalami; M.H. Khoshgoftar Manesh; M. Amidpour

2012-01-01T23:59:59.000Z

136

GIS: Geographic Information System An application for socio-economical data collection for rural area  

E-Print Network (OSTI)

The country India follows the planning through planning commission. This is on the basis of information collected by traditional, tedious and manual method which is too slow to sustain. Now we are in the age of 21th century. We have seen in last few decades that the progress of information technology with leaps and bounds, which have completely changed the way of life in the developed nations. While internet has changed the established working practice and opened new vistas and provided a platform to connect, this gives the opportunity for collaborative work space that goes beyond the global boundary. We are living in the global economy and India leading towards Liberalize Market Oriented Economy (LMOE). Considering this things, focusing on GIS, we proposed a system for collection of socio economic data and water resource management information of rural area via internet.

Nayak, S K; Kalyankar, N V

2010-01-01T23:59:59.000Z

137

FEED SYSTEM INNOVATION FOR GASIFICATION OF LOCALLY ECONOMICAL ALTERNATIVE FUELS (FIGLEAF)  

SciTech Connect

The Feed System Innovation for Gasification of Locally Economical Alternative Fuels (FIGLEAF) project is being conducted by the Energy and Environmental Research Center and Gasification Engineering Corporation of Houston, Texas (a subsidiary of Global Energy Inc., Cincinnati, Ohio), with 80% cofunding from the U.S. Department of Energy. The goal of the project is to identify and evaluate low-value fuels that could serve as alternative feedstocks and to develop a feed system to facilitate their use in integrated gasification combined cycle and gasification coproduction facilities. The long-term goal, to be accomplished in a subsequent project, is to install a feed system for the selected fuels at Global Energy's commercial-scale 262-MW Wabash River Coal Gasification Facility in West Terre Haute, Indiana. The feasibility study undertaken for the project consists of identifying and evaluating the economic feasibility of potential fuel sources, developing a feed system design capable of providing a fuel at 400 psig to the second stage of the E-Gas (Destec) gasifier to be cogasified with coal at up to 30% on a Btu basis, performing bench- and pilot-scale testing to verify concepts and clarify decision-based options, reviewing prior art with respect to high-pressure feed system designs, and determining the economics of cofeeding alternative feedstocks with the conceptual feed system design. Activities and results thus far include the following. Several potential alternative fuels have been obtained for evaluation and testing as potential feedstocks, including sewage sludge, used railroad ties, urban wood waste, municipal solid waste, and used waste tires/tire-derived fuel. Only fuels with potential tipping fees were considered; potential energy crop fuels were not considered since they would have a net positive cost to the plant. Based on the feedstock assessment, sewage sludge has been selected as one of the primary feedstocks for consideration at the Wabash plant. Because of the limited waste heat available for drying and the ability of the gasifier to operate with alternative feedstocks at up to 80% moisture, a decision was made to investigate a pumping system for delivering the as-received fuel across the pressure boundary. High-temperature drop-tube furnace tests were conducted to determine if explosive fragmentation of high-moisture sludge droplets could be expected, but showed that these droplets underwent a shrinking and densification process that implies that the sludge will have to be well dispersed when injected into the gasifier. Fuel dispersion nozzles have been obtained for measuring how well the sludge can be dispersed in the second stage of the gasifier. Future work will include leasing a Schwing America pump to test pumping sewage sludge against 400 psig. In addition, sludge dispersion testing will be completed using two different dispersion nozzles to determine their ability to generate sludge particles small enough to be entrained out of the E-Gas entrained-flow gasifier.

Michael L. Swanson; Mark A. Musich; Darren D. Schmidt

2001-11-01T23:59:59.000Z

138

Exergy–economic evaluation of heat recovery device in mechanical ventilation system  

Science Journals Connector (OSTI)

Abstract The paper presents new approach in evaluation of heat recovery devices in mechanical ventilation system. The evaluation is based on exergy balance equation and economic analysis, what requires application of one of multicriteria decision aid methods—weighted sum method. The proposed set of evaluation criteria consists of: driving exergy, simple payback time and investment cost. The proposed method is applied to compare the four variants of heat recovery device in inlet-exhaust mechanical ventilation system of the capacity of 10,000 m3/h installed in residential part of hotel. The analysis is performed for four preference models. The results of the multicriteria evaluation indicate that counter flow plate heat exchanger and the rotating heat/mass regenerator are better solutions comparing with water loop heat exchanger and heat pipe heat exchanger. Counter flow plate heat exchanger is the most compromise solution for the two preference models PREF_00 (based on statistic approach) and PREF_03 (investment cost priority preference model). Rotating heat/mass regenerator is the most compromise solution for the preference model 01 (driving exergy priority preference model). The proposed method can be helpful in the choice of the most compromise solution of the heat recovery device in pre-design phase.

Tomasz M. Mróz; Anna Dutka

2015-01-01T23:59:59.000Z

139

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 17, NO. 1, FEBRUARY 2002 159 Economic Congestion Relief Across Multiple  

E-Print Network (OSTI)

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 17, NO. 1, FEBRUARY 2002 159 Economic Congestion Relief, and Andrew M. Ross Abstract--This paper is concerned with market-based protocols for relieving congestion caused by transactions outside the control area in which the congestion occurred. One approach, proposed

140

Thermodynamic and economic analysis of polygeneration system integrating atmospheric pressure coal pyrolysis technology with circulating fluidized bed power plant  

Science Journals Connector (OSTI)

Abstract Lignite-based polygeneration system has been considered as a feasible technology to realize clean and efficient utilization of coal resources. A newly polygeneration system has been proposed, featuring the combination of a 2 × 300 MW circulating fluidized bed (CFB) power plant and atmospheric pressure fluidized bed pyrolyzers. Xiaolongtan lignite is pyrolyzed in pyrolyzers. Pyrolyzed volatiles are further utilized for the co-generation of methanol, oil, and electricity, while char residues are fired in CFB boilers to maintain the full load condition of boilers. Detailed system models were built, and the optimum operation parameters of the polygeneration plant were sought. Technical and economic performances of optimum design of the polygeneration plant were analyzed and compared with those of the conventional CFB power plant based on the evaluation of energy and exergy efficiency, internal rate of return (IRR), and payback period. Results revealed that system efficiency and the IRR of the polygeneration plant are ca. 9% and 14% points higher than those of the power plant, respectively. The study also analyzed the effects of market fluctuations on the economic condition of the polygeneration plant, and found that prices of fuel, material, and products have great impacts on the economic characteristics of the polygeneration plant. Polygeneration plant is more economic than CFB power plant even when prices fluctuate within a wide range. This paper provides a thorough evaluation of the polygeneration plant, and the study indicates that the proposed polygeneration plant has a bright prospect.

Zhihang Guo; Qinhui Wang; Mengxiang Fang; Zhongyang Luo; Kefa Cen

2014-01-01T23:59:59.000Z

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141

Economic Screening of Geologic Sequestration Options in the United States with a Carbon Management Geographic Information System  

SciTech Connect

Developing a carbon management strategy is a formidable task for nations as well as individual companies. It is often difficult to understand what options are available, let alone determine which may be optimal. In response to the need for a better understanding of complex carbon management options, Battelle has developed a state-of-the-art Geographic Information System (GIS) model with economic screening capability focused on carbon capture and geologic sequestration opportunities in the United States. This paper describes the development of this GIS-based economic screening model and demonstrates its use for carbon management analysis.

Dahowski, Robert T. (BATTELLE (PACIFIC NW LAB)); Dooley, James J. (BATTELLE (PACIFIC NW LAB)); Brown, Daryl R. (BATTELLE (PACIFIC NW LAB)); Stephan, Alex J. (BATTELLE (PACIFIC NW LAB)); Badie I. Morsi

2001-10-19T23:59:59.000Z

142

Wine Valley Inn: A mineral water spa in Calistoga, California. Geothermal-energy-system conceptual design and economic feasibility  

SciTech Connect

The purpose of this study is to determine the engineering and economic feasibility for utilizing geothermal energy for air conditioning and service water heating at the Wine Valley Inn, a mineral water spa in Calistoga, California. The study evaluates heating, ventilating, air conditioning and water heating systems suitable for direct heat geothermal application. Due to the excellent geothermal temperatures available at this site, the mechanics and economics of a geothermally powered chilled water cooling system are evaluated. The Wine Valley Inn has the resource potential to have one of the few totally geothermal powered air conditioning and water heating systems in the world. This total concept is completely developed. A water plan was prepared to determine the quantity of water required for fresh water well development based on the special requirements of the project. An economic evaluation of the system is included to justify the added capital investment needed to build the geothermally powered mineral spa. Energy payback calculations are presented. A thermal cascade system is proposed to direct the geothermal water through the energy system to first power the chiller, then the space heating system, domestic hot water, the two spas and finally to heat the swimming pool. The Energy Management strategy required to automatically control this cascade process using industrial quality micro-processor equipment is described. Energy Management controls are selected to keep equipment sizing at a minimum, pump only the amount of geothermal water needed and be self balancing.

Not Available

1981-10-26T23:59:59.000Z

143

Performance and thermo-economic assessments of geothermal district heating system: A case study in Afyon, Turkey  

Science Journals Connector (OSTI)

In this study energy, exergy and exergoeconomic analysis of the Afyon geothermal district heating system (AGDHS) in Afyon, Turkey is performed through thermodynamic performances and thermo-economic assessments. In the analysis, actual system data are used to assess the district heating system performance, energy and exergy efficiencies, exergy losses and loss cost rates. Energy and exergy losses throughout the AGDHS are quantified and illustrated in the flow diagram. The energy and exergy efficiencies of the overall system are found to be 37.59% and 47.54%, respectively. The largest exergy loss occurs in the heat exchangers with 14.59% and then in the reinjection wells with 14.09%. Besides, thermo-economic evaluations of the AGDHS are given in table. Energy and exergy loss rates for the AGDHS are estimated to be 5.36 kW/$ and 0.2  kW/$, respectively.

Ali Keçeba?

2011-01-01T23:59:59.000Z

144

Methodology for the economic optimisation of energy storage systems for frequency support in wind power plants  

Science Journals Connector (OSTI)

Abstract This paper proposes a methodology for the economic optimisation of the sizing of Energy Storage Systems (ESSs) whilst enhancing the participation of Wind Power Plants (WPP) in network primary frequency control support. The methodology was designed flexibly, so it can be applied to different energy markets and to include different ESS technologies. The methodology includes the formulation and solving of a Linear Programming (LP) problem. The methodology was applied to the particular case of a 50 MW WPP, equipped with a Vanadium Redox Flow battery (VRB) in the UK energy market. Analysis is performed considering real data on the UK regular energy market and the UK frequency response market. Data for wind power generation and energy storage costs are estimated from literature. Results suggest that, under certain assumptions, \\{ESSs\\} can be profitable for the operator of a WPP that is providing frequency response. The ESS provides power reserves such that the WPP can generate close to the maximum energy available. The solution of the optimisation problem establishes that an ESS with a power rating of 5.3 MW and energy capacity of about 3 MW h would be enough to provide such service whilst maximising the incomes for the WPP operator considering the regular and frequency regulation UK markets.

Lewis Johnston; Francisco Díaz-González; Oriol Gomis-Bellmunt; Cristina Corchero-García; Miguel Cruz-Zambrano

2015-01-01T23:59:59.000Z

145

The impact of demand-controlled and economizer ventilation strategies on energy use in buildings  

SciTech Connect

The overall objective of this work was to evaluate typical energy requirements associated with alternative ventilation control strategies for constant-air-volume (CAV) systems in commercial buildings. The strategies included different combinations of economizer and demand-controlled ventilation, and energy analyses were performed for four typical building types, eight alternative ventilation systems, and twenty US climates. Only single-zone buildings were considered so that simultaneous heating and cooling did not exist. The energy savings associated with economizer and demand-controlled ventilation strategies were found to be very significant for both heating and cooling. In general, the greatest savings in electrical usage for cooling with the addition of demand-controlled ventilation occur in situations where the opportunities for economizer cooling are less. This is true for warm and humid climates and for buildings that have relatively low internal gains (i.e., low occupant densities). As much as 20% savings in electrical energy for cooling were possible with demand-controlled ventilation. The savings in heating energy associated with demand-controlled ventilation were generally much larger but were strongly dependent upon the building type and occupancy schedule. Significantly greater savings were found for buildings with highly variable occupancy schedules and large internal gains (i.e., restaurants) as compared with office buildings. In some cases, the primary heating energy was virtually eliminated by demand-controlled ventilation as compared with fixed ventilation rates. For both heating and cooling, the savings associated with demand-controlled ventilation are dependent on the fixed minimum ventilation rate of the base case at design conditions.

Brandemuehl, M.J.; Braun, J.E.

1999-07-01T23:59:59.000Z

146

Impacts of Static Pressure Reset on VAV System Air Leakage, Fan Power and Thermal Energy - Part I: Theoretical Model and Simulation  

E-Print Network (OSTI)

As for a variable air volume (VAV) system, the air duct static pressure is a typical control variable maintained by modulating supply fan speed. The static pressure equals to the summation of the duct pressure loss downstream of the sensor...

Liu, M.; Feng, J.; Wang, Z.; Wu, L.; Zheng, K.; Pang, W.

2007-01-01T23:59:59.000Z

147

The impact of retail rate structures on the economics of commercial photovoltaic systems in California  

E-Print Network (OSTI)

Golove. 2007. “The Impact of Retail Rate Structures on theThe Impact of Retail Rate Structures on the Economics ofexamines the impact of retail electricity rate design on the

Mills, Andrew D.

2009-01-01T23:59:59.000Z

148

The Impact of Retail Rate Structures on the Economics of Commercial Photovoltaic Systems in California  

E-Print Network (OSTI)

Golove. 2007. “The Impact of Retail Rate Structures on theThe Impact of Retail Rate Structures on the Economics ofexamines the impact of retail electricity rate design on the

Mills, Andrew

2009-01-01T23:59:59.000Z

149

An economic analysis of grid-connected residential solar photovoltaic power systems  

E-Print Network (OSTI)

The question of the utility grid-connected residential market for photovoltaics is examined from a user-ownership perspective. The price is calculated at which the user would be economically indifferent between

Carpenter, Paul R.

150

Experimental and Thermo-Economic Analysis of Catalytic Gasification and Fuel Cell Power Systems.  

E-Print Network (OSTI)

??This dissertation presents a comprehensive experimental and thermo-economic evaluation of coal gasifiers with in-situ carbon capture for generating high-hydrogen and high-methane content syngas for solid… (more)

Siefert, Nicholas S.

2013-01-01T23:59:59.000Z

151

The Economics Department of Economics  

E-Print Network (OSTI)

The Economics Initiative Department of Economics #12;Economics at LSE The Department of Economics is the top ranked economics department in Europe and among the top 12 worldwide. It is one of the largest economics departments in the world, with over 60 faculty and 1,000 students and a department which makes

152

Cooling season study and economic analysis of a desiccant cooling system  

E-Print Network (OSTI)

10 20 30 40 50 60 70 80 Gas Cost (3/GJ) Figure 4. 4 Gas Price vs DINC Cycle Payback Period at Various Electricity Prices SEER = 12 35 20 18 16 ~ 14 ~ 12 D o 10 8 6 o 4 $0. 06/Kwh $0. 09/Kwh $0. 12/Kwh $0. 15/Kwh $0. 'I 8/Kwh 10 20... IV ECONOMIC ANALYSIS V CONCLUSIONS 28 36 NOMENCLATURE 39 REFERENCES 46 APPENDIX A - HOUSE CONSTRUCTION DATA . . APPENDIX B - SECOND LAW COMPARISON 48 53 APPENDIX C - COOLING SEASON AND DINC CYCLE PROGRAM LISTING 72 APPENDIX D - ECONOMIC...

Lee, James Howard

2012-06-07T23:59:59.000Z

153

Ecological and Economical efficient Heating and Cooling by innovative Gas Motor Heat Pump Systems and Solutions  

E-Print Network (OSTI)

#12;Ecological and Economical efficient Heating and Cooling by innovative Gas Motor Heat Pump use of buildings Gas Heat Pump Solution #12;Gas Heat Pump - deserves special attention due to its source in addition to the outside air ·A further essential component of Gas Heat Pump air conditioning

Oak Ridge National Laboratory

154

Integration of Renewable Energy with Industrial Absorption Refrigeration Systems: Systematic Design and Operation with Technical, Economic, and Environmental Objectives  

Science Journals Connector (OSTI)

Integration of Renewable Energy with Industrial Absorption Refrigeration Systems: Systematic Design and Operation with Technical, Economic, and Environmental Objectives ... Chemical Engineering & Pilot Plant Department, Engineering Division, National Research Centre, El-Buhoos St., Dokki, Cairo, Egypt, 12311 ... Heat is required to run the AR system by heating the absorbent above 80 °C and it can be provided by several media (e.g., Ziegler and Riesch(14) and Herold et al.(15)) including fossil fuels, as well as sustainable energies such as biofuels and solar energy. ...

Jose? Mari?a Ponce-Ortega; Eman A. Tora; J. Betzabe Gonza?lez-Campos; Mahmoud M. El-Halwagi

2011-06-27T23:59:59.000Z

155

Economic Analysis of Commercial Idling Reduction Technologies...  

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

Technologies: Which idling reduction system is most economical for truck owners? Economic Analysis of Commercial Idling Reduction Technologies: Which idling reduction system...

156

Techno-economic Evaluation of the Feasibility of a Smart Street Light System: A case study of Rural India  

Science Journals Connector (OSTI)

Throughout the world application of vehicle and infrastructure based intelligent transportation systems have been increased over the last decade. Most of these advanced intelligent technologies are only used in urban areas. Successful introduction of such intelligent technologies can enhance the level of safety, security and efficiency of transportation system in rural communities and support country's growth. In this research, a techno-economic feasibility evaluation of a smart street light (SSL) system, in the context of rural areas in India, has been carried out. In order to evaluate the proposed SSL system we have considered a case study of the remotely located Khurhaan village in the state of Bihar, India. The result suggested that adopting SSL over the conventional street light system gives a cost saving of 91,506 annually.

Nagendra R Velaga; Amit Kumar

2012-01-01T23:59:59.000Z

157

Ecological economizer  

SciTech Connect

This patent describes an engine economizer system adapted to supply an internal combustion engine with a heated air and water vapor mixture. It comprises a containment vessel, the vessel having: water level control means, an engine coolant fluid circuit, an engine lubricant circuit, an elongated air passage, air disbursement means, a water reservoir, air filter means, a vacuum aspiration port, and engine induction means associated with one of the carburetor and intake manifold and adapted to draw in the heated air and water vapor mixture by means of a hose connection to the aspiration port.

Peterson, E.M.

1992-06-16T23:59:59.000Z

158

Power plants coordination for economic and environmental load dispatch of thermal power plants with wind generation systems  

Science Journals Connector (OSTI)

Economic load dispatch (ELD) and economic emission dispatch (EED) have been applied to obtain generation scheduling of thermal power plants at optimum fuel cost and emissions. Due to limited availability of quality coal, issue of environmental emissions and high prices of coal, installation of renewable energy systems are suggested in power grid. Renewable energy system preferably wind generators are used in co-working with thermal plant which reduces generation cost, coal requirement and environmental emissions. This paper presents Newton-Raphson method to obtain ELD and EED. System simulation and programming is carried out in MATLAB® environment. Analysis has been made on generation cost and for nitrous oxides emissions only due to its harmful effects and its rising tendency with excess air. Price penalty factor is also calculated to determine emission cost. Doubly fed induction generator (DFIG) is suggested as wind energy systems in combination with coal-based thermal plant. Performance results related to generation scheduling, transmission line loading, bus voltages, total cost and environmental emissions are shown for coal-based thermal power plant and with co-generation. The investigation shows that with co-generation, coal-based thermal power plant runs at minimum emissions level which further reflects on the generation economy.

Kishor B. Porate; Krishna L. Thakre; Ghanashyam Bodhe

2013-01-01T23:59:59.000Z

159

Techno-economic analysis of hybrid photovoltaic/diesel/battery off-grid system in northern Nigeria  

Science Journals Connector (OSTI)

The rate of dependence on stand-alone diesel generator for individual electricity generation among households in Nigeria is geometrically increasing and has thus led to significant increase of the environment pollution. This is due to the inability of the utility company to meet the energy demand of its yearning consumers due to ageing and limitations in power infrastructures. This has led to about 40% of the country's population been cut off from the national grid. In view of these hazardous effects posed from the usage of these individual diesel-powered generations this paper reports on the assessment of techno-economic viability of a hybrid photovoltaic diesel/battery off-grid system as an alternative solution to these threats. For that purpose a remote area located far in the northern part of Nigeria was taken as the case study in which an international institution with peak demand of 90?kW was considered. The HOMER optimization software is used to evaluate both the technical and economic viability of the proposed energy system by taking into account the variations of both the solar radiation and diesel prices as experienced in most part of Nigeria. The study reveals the potential capability of the hybrid photovoltaic/diesel energy system with battery backup as a good alternative energy source for individual household replacement for diesel-powered generator. In addition the proposed system is of high energy potential as well as low carbon emission at affordable cost of electricity.

Hafeez Olasunkanmi Tijani; Chee Wei Tan

2014-01-01T23:59:59.000Z

160

Enhancement of loading capacity of distribution system through distributed generator placement considering techno-economic benefits with load growth  

Science Journals Connector (OSTI)

Abstract Load growth in a system is a natural phenomenon. With the increase in load demand, system power loss and voltage drop increases. Distributed generators (DGs) are one of the best solutions to cope up with the load growth if they are allocated appropriately in the distribution system. In this work, optimal size and location of multiple \\{DGs\\} are found to cater the incremental load on the system and minimization of power loss without violating system constraints. For this a predetermined annual load growth up to five years is considered with voltage regulation as a constraint. The particle swarm optimization with constriction factor approach is applied to determine the optimum size and location with multiple DGs. To see the effect of load growth on system, 33-node IEEE standard test case is considered. It is observed that with the penetration of multiple number of \\{DGs\\} in distribution system, there is great improvement in several distribution system parameters. Moreover, the loading capacity of distribution system is enhanced through DG placement and its techno-economic benefits are also established.

Khyati D. Mistry; Ranjit Roy

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

HIGH-TEMPERATURE ELECTROLYSIS FOR LARGE-SCALE HYDROGEN AND SYNGAS PRODUCTION FROM NUCLEAR ENERGY – SYSTEM SIMULATION AND ECONOMICS  

SciTech Connect

A research and development program is under way at the Idaho National Laboratory (INL) to assess the technological and scale-up issues associated with the implementation of solid-oxide electrolysis cell technology for efficient high-temperature hydrogen production from steam. This work is supported by the US Department of Energy, Office of Nuclear Energy, under the Nuclear Hydrogen Initiative. This paper will provide an overview of large-scale system modeling results and economic analyses that have been completed to date. System analysis results have been obtained using the commercial code UniSim, augmented with a custom high-temperature electrolyzer module. Economic analysis results were based on the DOE H2A analysis methodology. The process flow diagrams for the system simulations include an advanced nuclear reactor as a source of high-temperature process heat, a power cycle and a coupled steam electrolysis loop. Several reactor types and power cycles have been considered, over a range of reactor outlet temperatures. Pure steam electrolysis for hydrogen production as well as coelectrolysis for syngas production from steam/carbon dioxide mixtures have both been considered. In addition, the feasibility of coupling the high-temperature electrolysis process to biomass and coal-based synthetic fuels production has been considered. These simulations demonstrate that the addition of supplementary nuclear hydrogen to synthetic fuels production from any carbon source minimizes emissions of carbon dioxide during the production process.

J. E. O'Brien; M. G. McKellar; E. A. Harvego; C. M. Stoots

2009-05-01T23:59:59.000Z

162

Economic Implications of Net Metering for Stationary and Motor Vehicle Fuel Cell Systems in California  

E-Print Network (OSTI)

prices, fuel cell and reformer system costs, and fuel cell system durability levels. In general, the "central case" analysis results show that stationary PEM fuel cell systems can supply electricity for offices and homes in California at a net savings when fuel cell system costs reach about $6,000 for a 5 k

Kammen, Daniel M.

163

Energy and economic analysis of geothermal–solar trigeneration systems: A case study for a hotel building in Ischia  

Science Journals Connector (OSTI)

Abstract This paper presents the design, simulation and optimisation of a small trigeneration plant supplied by geothermal and solar energies. Different technologies are implemented in a dynamic simulation model purposely developed for research scope: a 6 kWe micro Organic Rankine Cycle (ORC); a 30 kWf single stage H2O/LiBr absorption chiller; a geothermal well; a solar field obtained by new prototypal flat-plate evacuated solar collectors. The ORC is supplied by heat obtained by a geothermal well in which geothermal brine is about at 95 °C. In order to improve system performance, additional heat is provided by solar energy obtained through a 25 m2 solar field. Diathermic oil (up to 130 °C) is adopted as working fluid in order to supply heat to the ORC evaporator. A suitable oil storage tank is modelled in order to mitigate the temperature fluctuations due to the variability of solar energy availability. The output power of the ORC depends on the availability of solar energy. The absorption chiller is switched-on in summer time and it is fed by geothermal energy only. This simulation model is implemented in TRNSYS environment. The ORC is modelled by zero-dimensional energy and mass balances implemented in Engineering Equation Solver (EES). A case study is developed in order to test the energy and economic performance of this innovative micro-trigeneration plant. In particular, the above mentioned model is applied to the Regina Isabella hotel in Ischia (Naples, South Italy), famous for its geothermal sources. Currently, such hotel is already equipped by a geothermal system (by several hot water wells) for thermal cares, domestic hot water production and space heating. By TRNSYS the optimisation of the system design parameters and the calculation of the thermo-economic conditions were performed. The system showed excellent energy performance indexes. In fact, the average yearly efficiency of the solar thermal collectors is close to 60%, whereas the average yearly ORC electric efficiency is about 6%, which is a good achievement considering the system driving temperature. Results also show that the system performance is more dependent on the availability of the geothermal energy than the solar one. From the economic point of view, good results are also obtained. In fact, in the worst operating conditions the Simple Pay Back Period is 7.6 years, decreasing to 2.5 years in the most convenient considered scenario (public funding and full utilisation of the produced thermal energy).

Annamaria Buonomano; Francesco Calise; Adolfo Palombo; Maria Vicidomini

2015-01-01T23:59:59.000Z

164

Techno-Economic Feasibility of Highly Efficient Cost-Effective Thermoelectric-SOFC Hybrid Power Generation Systems  

SciTech Connect

Solid oxide fuel cell (SOFC) systems have the potential to generate exhaust gas streams of high temperature, ranging from 400 to 800 C. These high temperature gas streams can be used for additional power generation with bottoming cycle technologies to achieve higher system power efficiency. One of the potential candidate bottoming cycles is power generation by means of thermoelectric (TE) devices, which have the inherent advantages of low noise, low maintenance and long life. This study was to analyze the feasibility of combining coal gas based SOFC and TE through system performance and cost techno-economic modeling in the context of multi-MW power plants, with 200 kW SOFC-TE module as building blocks. System and component concepts were generated for combining SOFC and TE covering electro-thermo-chemical system integration, power conditioning system (PCS) and component designs. SOFC cost and performance models previously developed at United Technologies Research Center were modified and used in overall system analysis. The TE model was validated and provided by BSST. The optimum system in terms of energy conversion efficiency was found to be a pressurized SOFC-TE, with system efficiency of 65.3% and cost of $390/kW of manufacturing cost. The pressurization ratio was approximately 4 and the assumed ZT of the TE was 2.5. System and component specifications were generated based on the modeling study. The major technology and cost barriers for maturing the system include pressurized SOFC stack using coal gas, the high temperature recycle blowers, and system control design. Finally, a 4-step development roadmap is proposed for future technology development, the first step being a 1 kW proof-of-concept demonstration unit.

Jifeng Zhang; Jean Yamanis

2007-09-30T23:59:59.000Z

165

Techno-economic evaluation of a ventilation system assisted with exhaust air heat recovery, electrical heater and solar energy  

Science Journals Connector (OSTI)

Abstract The energy consumed to condition fresh air is considerable, particularly for the buildings such as cinema, theatre or gymnasium saloons. The aim of the present study is to design a ventilation system assisted with exhaust air heat recovery unit, electrical heater and stored solar energy, then to make an economical analysis based on life cycle cost (LCC) to find out its payback period. The system is able to recover thermal energy of exhaust air, store solar energy during the sunlight period and utilize it in the period between 17:00 and 24:00 h. The transient behaviour of the system is simulated by the TRNSYS 16 software for winter period from 1st of November to 31st of March for Izmir city of Turkey. The obtained results show that the suggested ventilation system reduces energy consumption by 86% compared to the conventional ventilation system in which an electrical heater is used. The payback period of the suggested system is found to be 5 years and 8 months which is a promising result in favour of the solar energy usage in building ventilation systems.

Gamze Ozyogurtcu; Moghtada Mobedi; Baris Ozerdem

2014-01-01T23:59:59.000Z

166

Considerations When Selecting a Condensing Economizer  

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

This tip sheet lays out considerations when selecting condensing economizers as part of optimized steam systems.

167

Engineering Economics  

Science Journals Connector (OSTI)

The purpose of these review notes is to provide a refresher in the major topics of Engineering Economics. Engineering economics deals with determining from a number of technically acceptable alternatives the o...

1998-01-01T23:59:59.000Z

168

Economic and Emergency Operations of the Storage System in a Microgrid.  

E-Print Network (OSTI)

?? Storage system is one of the critical components of the microgrid. Storage system has broad applicability in short-term and long-term operations of microgrid. Storage… (more)

Shaghayegh, Bahramirad

2012-01-01T23:59:59.000Z

169

Semantic Lookup in Service-Oriented Architectures Department of Information Systems, Vienna University of Economics, Austria  

E-Print Network (OSTI)

Semantic Lookup in Service-Oriented Architectures Uwe Zdun Department of Information Systems in many distributed systems. This paper deals with lookup in service-oriented architectures, such as Web services, P2P systems, GRIDs, or spontaneous networks. Service-oriented architectures impose specific

Zdun, Uwe

170

Design and evaluation of a prototype laboratory emission control device for use in a variable air volume, face velocity reducing system  

E-Print Network (OSTI)

by the work environment and the work practices of those using the hood. Burton complied the following table, illustrating past and current recommendations from various agencies, yet recommends 100 feet per minute [FPM] along with good work practices.... " ' ~Oi t Recommended Face Velocit FPM American National Standards Institute (ANSI), Z9. 5, 1992 80-120 American Conference of Governmental Industrial Hygienists (ACGIH) 60-100 National Institute for Occupational Safety and Health (NIOSH) 100...

Lacey, Steven Edward

2012-06-07T23:59:59.000Z

171

The Impact of Retail Rate Structures on the Economics of Commercial Photovoltaic Systems in California  

E-Print Network (OSTI)

their PV output through a feed-in tariff, and PV systems areU.S. at least, where feed-in tariffs are not prevalent, PV

Mills, Andrew

2009-01-01T23:59:59.000Z

172

Long-term electricity demand forecasting for power system planning using economic, demographic and climatic variables  

Science Journals Connector (OSTI)

The stochastic planning of power production overcomes the drawback of deterministic models by accounting for uncertainties in the parameters. Such planning accounts for demand uncertainties by using scenario sets and probability distributions. However, in previous literature, different scenarios were developed by either assigning arbitrary values or assuming certain percentages above or below a deterministic demand. Using forecasting techniques, reliable demand data can be obtained and inputted to the scenario set. This article focuses on the long-term forecasting of electricity demand using autoregressive, simple linear and multiple linear regression models. The resulting models using different forecasting techniques are compared through a number of statistical measures and the most accurate model was selected. Using Ontario's electricity demand as a case study, the annual energy, peak load and base load demand were forecasted up to the year 2025. In order to generate different scenarios, different ranges in the economic, demographic and climatic variables were used. [Received 16 October 2007; Revised 31 May 2008; Revised 25 October 2008; Accepted 1 November 2008

F. Chui; A. Elkamel; R. Surit; E. Croiset; P.L. Douglas

2009-01-01T23:59:59.000Z

173

Simulations of economical and technical feasibility of battery and flywheel hybrid energy storage systems in autonomous projects  

Science Journals Connector (OSTI)

This paper deals with the feasibility of a Renewable Energy Sources (RES)-based stand-alone system for electricity supply based on a Flywheel Energy Storage System (FESS) located on the Greek Island of Naxos. The innovative use of flywheels in parallel connection with electrochemical batteries, as an integrated storage device in the same power plant, was selected to be simulated as it is a necessary buffer covering the load of a typical house. The optimal configuration for the electromechanical connection between the electrochemical batteries and flywheels is also considered in this study. Operational characteristics of the new storage systems were estimated and used in the simulations, while the financial aspects of the projects finalized using hand-made calculations and the HOMER software was used only for the energy calculations. It was found that an off-grid project using advanced and totally “green” technologies is possible and comparable to more conventional RES-based systems, in terms of energy and economical feasibility. Finally, it can be concluded that systems with low price flywheels are equivalent to those with electrochemical batteries.

George N. Prodromidis; Frank A. Coutelieris

2012-01-01T23:59:59.000Z

174

UBC Social Ecological Economic Development Studies (SEEDS) Student Report Elevator Drive Systems Energy Consumption Study Report  

E-Print Network (OSTI)

Energy Consumption Study Report Benny ChunYin Chan University of British Columbia EECE 492 April 6th the current status of the subject matter of a project/report". #12;Elevator Drive Systems Energy Consumption Study Report April 2012 0 2012 Elevator Drive Systems Energy Consumption Study Report Benny CY Chan UBC

175

A Virtual Environment for Interactive Visualization of Power System Economic and Security Information  

E-Print Network (OSTI)

. In contrast, the purpose of the work presented here is to use a VE to interactively visualize more abstract of Illinois at Urbana-Champaign Urbana, IL 61801 USA Abstract Simulation and analysis of power systems often power system data. Thus this work is more akin to scientific visualization. An overview of using VEs

176

An Economic Study of Carbon Capture and Storage System Design and Policy  

E-Print Network (OSTI)

Carbon capture and storage (CCS) and a point of electricity generation is a promising option for mitigating greenhouse gas emissions. One issue with respect to CCS is the design of carbon dioxide transport, storage and injection system...

Prasodjo, Darmawan

2012-10-19T23:59:59.000Z

177

The impact of retail rate structures on the economics of commercial photovoltaic systems in California  

E-Print Network (OSTI)

their PV output through a feed-in tariff, and PV systems areIn contrast to feed-in tariffs, net metering generallyU.S. at least, where feed-in tariffs are not prevalent, PV

Mills, Andrew D.

2009-01-01T23:59:59.000Z

178

Economic feasibility of a PV system for grid-connected semiconductor facilities in South Korea  

Science Journals Connector (OSTI)

In this study, a cost optimization and sensitivity analysis were carried out for the deployment of a photovoltaic (PV) system in a semiconductor facility in South Korea. The Microgrid software (HOMER) was used...

Hyung Jong Choi; Gwon Deok Han…

2013-11-01T23:59:59.000Z

179

Transmission pricing of distributed multilateral energy transactions to ensure system security and guide economic dispatch  

E-Print Network (OSTI)

In this paper we provide a simulations-based demonstration of a hybrid electricity market that combines the distributed competitive advantages of decentralized markets with the system security guarantees of centralized ...

Ilic, Marija D.

2002-01-01T23:59:59.000Z

180

Novel Controls for Economic Dispatch of Combined Cooling, Heating and Power (CCHP) Systems  

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

The emergence of technologies that efficiently convert heat into cooling, such as absorption chillers, has opened up many new opportunities and markets for combined heat and power systems. These...

Note: This page contains sample records for the topic "air-volume system economizer" 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 Impact of Retail Rate Structures on the Economics of Commercial Photovoltaic Systems in California  

E-Print Network (OSTI)

with PV Annual PV Energy Production ( $ / kWh ) Expressingwith PV Annual PV Energy Production ( $ / kWh ) It is clearanalysis, and the annual energy production of a PV system,

Wiser, Ryan; Mills, Andrew; Barbose, Galen; Golove, William

2007-01-01T23:59:59.000Z

182

Sonoma State Hospital, Eldridge, California, geothermal-heating system: conceptual design and economic feasibility report  

SciTech Connect

The Sonoma State Mental Hospital, located in Eldridge, California, is presently equipped with a central gas-fired steam system that meets the space heating, domestic hot water, and other heating needs of the hospital. This system is a major consumer of natural gas - estimated at 259,994,000 cubic feet per year under average conditions. At the 1981 unit gas rate of $0.4608 per therm, an average of $1,258,000 per year is required to operate the steam heating system. The hospital is located in an area with considerable geothermal resources as evidenced by a number of nearby hot springs resorts. A private developer is currently investigating the feasibility of utilizing geothermally heated steam to generate electricity for sale to the Pacific Gas and Electric Company. The developer has proposed to sell the byproduct condensed steam to the hospital, which would use the heat energy remaining in the condensate for its own heating needs and thereby reduce the fossil fuel energy demand of the existing steam heating system. The geothermal heating system developed is capable of displacing an estimated 70 percent of the existing natural gas consumption of the steam heating system. Construction of the geothermal fluid distribution and collection system and the retrofits required within the buildings are estimated to cost $1,777,000. Annual expenses (operation and maintenance, insurance, and geothermal fluid purchase) have been estimated to be $40,380 per year in 1981 dollars. The proposed geothermal heating system could then be completely paid for in 32 months by the savings in natural gas purchases that would result.

Not Available

1982-02-01T23:59:59.000Z

183

The Impacts of Commercial Electric Utility Rate Structure Elements on the Economics of Photovoltaic Systems  

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

This analysis uses simulated building data, simulated solar photovoltaic (PV) data, and actual electric utility tariff data from 25 cities to better understand the impacts of different commercial rate structures on the value of solar PV systems. By analyzing and comparing 55 unique rate structures across the United States, this study seeks to identify the rate components that have the greatest effect on the value of PV systems.

184

WINDExchange: Wind Economic Development  

Wind Powering America (EERE)

help you analyze the economics of a small wind electric system and decide whether wind energy will work for you. Wind Energy Finance Online Calculator Wind Energy Finance developed...

185

Optimal fuzzy multi-objective design of a renewable energy system with economics, reliability, and environmental emissions considerations  

Science Journals Connector (OSTI)

Besides economical issues reliability and environmental emissions have become major concerns whenever an energy system is designed. The objective of this study is to design both an autonomous and non-autonomous hybrid green power system (HGPS) to supply a specific load demand considering economics reliability indices and environmental emissions. The HGPS includes wind turbine (WT) photovoltaic (PV) array fuel cell and the actual data used for simulation which are annual solar irradiation and wind speed for the state of Illinois. For reliability analysis it is assumed that only WT PV DC/AC convertor and electrical network might have failure in supplying power. To evaluate the actual reliability level of the HGPS equipments all possible conditions should be considered and for each one of them the reliability indices are estimated by determining the quantity and probability of load demands not supplied. However in this study an approximate model is utilized to examine the reliability indices. In the approximate model the average power generation of WT units and PV array is utilized (instead of considering the outage of each WT unit and PV array separately) and then the mathematical expectation of reliability indices is calculated. The results show that the reliability indices are activated when there is no backup (electrical network) for the HGPS. The utilization of HGPS in parallel with electrical network when cost is given the highest importance leads to the purchase of all power from the electrical network. However when emission is considered as the second objective function in the fuzzy multi-objective problem; the degree of importance given to each function (total cost and emission) plays a major role in the optimal design of HGPS.

2014-01-01T23:59:59.000Z

186

Optimal design and techno-economic analysis of a hybrid solar–wind power generation system  

Science Journals Connector (OSTI)

Solar energy and wind energy are the two most viable renewable energy resources in the world. Good compensation characters are usually found between solar energy and wind energy. This paper recommend an optimal design model for designing hybrid solar–wind systems employing battery banks for calculating the system optimum configurations and ensuring that the annualized cost of the systems is minimized while satisfying the custom required loss of power supply probability (LPSP). The five decision variables included in the optimization process are the PV module number, PV module slope angle, wind turbine number, wind turbine installation height and battery capacity. The proposed method has been applied to design a hybrid system to supply power for a telecommunication relay station along south-east coast of China. The research and project monitoring results of the hybrid project were reported, good complementary characteristics between the solar and wind energy were found, and the hybrid system turned out to be able to perform very well as expected throughout the year with the battery over-discharge situations seldom occurred.

Hongxing Yang; Zhou Wei; Lou Chengzhi

2009-01-01T23:59:59.000Z

187

Economic Report  

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

Transmitted to the Congress February 2008 Transmitted to the Congress February 2008 Together with the Annual Report of the Council of Economic Advisers Economic Report of the President Economic Report of the President For sale by the Superintendent of Documents, U.S. Government Printing Office Internet: bookstore.gpo.gov Phone: (866) 512-1800; DC area (202) 512-1800 ISBN 978-0-16-079822-1 Transmitted to the Congress February 2008 together with THE ANNUAL REPORT of the COUNCIL OF ECONOMIC ADVISERS UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON : 2008 Fax: (202) 512-2104 Mail Stop: IDCC, Washington, DC 20402-0001 C O N T E N T S ECONOMIC REPORT OF THE PRESIDENT ............................................. ANNUAL REPORT OF THE COUNCIL OF ECONOMIC ADVISERS* ...

188

A prototype system for economic, environmental and sustainable optimization of a chemical complex  

E-Print Network (OSTI)

. A second application of the prototype was based on an agricultural chemical complex with ten multiple plant of the system to select an optimum configuration of plants in an agricultural chemical complex tools such as Total (full) Cost Assessment (ac- counting) (TCA), Life Cycle Assessment (LCA

Pike, Ralph W.

189

Operating Experience and Economic Assessment of Commercial and Industrial Cool Storage Systems - TVA Case Study  

E-Print Network (OSTI)

Thermal storage systems offer utilities a means to change the energy use patterns of both residential and commercial and industrial (C&I) customers by moving water-heating and space-conditioning loads from peak to offpeak periods. Benefits from...

Sieber, R. E.; Dahmus, A. B.

1985-01-01T23:59:59.000Z

190

Economic assessment of regional bioenergy systems in Australia: a flow analysis application  

Science Journals Connector (OSTI)

This paper describes a modelling tool that integrates Material Flow Analysis, energy production and Greenhouse Gas (GHG) emissions accounting for biomass flows at a regional scale. This tool allows comprehensive analysis of alternative systems for management of biomass waste and bioenergy production in regional areas. Different possible options for processing a range of biomass waste streams can be evaluated against multiple criteria including various environmental impacts and cost-effectiveness. The objective is to support the design of integrated biomass waste and bioenergy systems that maximise synergies and optimise tradeoffs between bioenergy production, GHG emissions, recycling of valuable soil nutrients and control of harmful contaminants. This analytical tool is applied to a major agricultural region in Australia, the Murrumbidgee Irrigation Area. A scenario demonstrates how the construction of different types of bioenergy plant can offer valuable benefits with regard to renewable energy production, GHG emission reductions, increasing phosphorus cycling back to soils and reduced cadmium contamination.

Napat Jakrawatana; Stephen Moore; Iain MacGill

2009-01-01T23:59:59.000Z

191

[working paper] Regional Economic Capacity, Economic Shocks,  

E-Print Network (OSTI)

1 [working paper] Regional Economic Capacity, Economic Shocks, and Economic that makes them more likely to resist economic shocks or to recover quickly from of resilience capacity developed by Foster (2012) is related to economic resilience

Sekhon, Jasjeet S.

192

Economic Optimal Operation of Community Energy Storage Systems in Competitive Energy Markets  

E-Print Network (OSTI)

Distributed, controllable energy storage devices offer several significant benefits to electric power system operation. Three such benefits include reducing peak load, providing standby power, and enhancing power quality. These benefits, however, are only realized during peak load or during an outage, events that are infrequent. This paper presents a means of realizing additional benefits by taking advantage of the fluctuating costs of energy in competitive energy markets. An algorithm for optimal charge/discharge scheduling of community energy storage (CES) devices as well as an analysis of several of the key drivers of such optimization are discussed.

Arghandeh, Reza; Onen, Ahmet; Jung, Jaesung; Broadwater, Robert P

2014-01-01T23:59:59.000Z

193

Economic optimal operation of Community Energy Storage systems in competitive energy markets  

Science Journals Connector (OSTI)

Abstract Distributed, controllable energy storage devices offer several benefits to electric power system operation. Three such benefits include reducing peak load, providing standby power, and enhancing power quality. These benefits, however, are only realized during peak load or during an outage, events that are infrequent. This paper presents a means of realizing additional benefits by taking advantage of the fluctuating costs of energy in competitive energy markets. An algorithm for optimal charge/discharge scheduling of Community Energy Storage (CES) devices as well as an analysis of several of the key drivers of the optimization are discussed.

Reza Arghandeh; Jeremy Woyak; Ahmet Onen; Jaesung Jung; Robert P. Broadwater

2014-01-01T23:59:59.000Z

194

Framework for the Economic Analysis of Hybrid Systems Based on Exergy Consumption  

SciTech Connect

Starting from an overview of the dynamic behavior of the electricity market the need of the introduction of energy users that will provide a damping capability to the system is derived as also a qualitative analysis of the impact of uncertainty, both in the demand and supply side, is performed. Then it follows an introduction to the investment analysis methodologies based on the discounting of the cash flow, and then work concludes with the illustration and application of the exergonomic principles to provide a sound methodology for the cost accounting of the plant components to be used in the cash flow analysis.

Cristian Rabiti; Robert S. Cherry; Wesley R. Deason; Piyush Sabharwall; Shannon M. Bragg-Sitton; Richard D. Boardman

2014-08-01T23:59:59.000Z

195

On the economic potential for electric load management in the German residential heating sector – An optimising energy system model approach  

Science Journals Connector (OSTI)

Abstract Against the background of the ambitious German targets for renewable energy and energy efficiency, this paper investigates the economic potential for thermal load management with virtual power plants consisting of micro-cogeneration plants, heat pumps and thermal storage within the residential sector. An optimising energy system model of the electricity and residential heat supply in Germany is developed in the TIMES (The Integrated MARKAL EFOM System) modelling framework and used to determine capacity developments and dispatch of electricity and residential heat generation technologies until 2050. The analysed scenarios differ with respect to the rate of technological development of heat and power devices, fuel and CO2 prices as well as renewable electricity expansion. Results show that high fuel prices and a high renewable electricity expansion favour heat pumps and insulation measures over micro-cogeneration, whereas lower fuel prices and lower renewable electricity expansion relatively favour the expansion of micro-cogeneration. In the former case heat pump capacities increase to around 67 GWel, whereas in the latter case the total capacity of micro-cogeneration reaches 8 GWel. With the aid of thermal storage, this provides considerable flexibility for electrical load shifting through heat pumps and electricity generation from micro-cogeneration in residential applications, needed for the integration of fluctuating renewable electricity technologies.

Daniel Fehrenbach; Erik Merkel; Russell McKenna; Ute Karl; Wolf Fichtner

2014-01-01T23:59:59.000Z

196

Thermodynamic analysis of a low-pressure economizer based waste heat recovery system for a coal-fired power plant  

Science Journals Connector (OSTI)

Abstract An LPE (low-pressure economizer) based waste heat recovery system for a CFPP (coal-fired power plant) is investigated thermodynamically. With the installation of LPE in the flue before the FGD (flue gas desulfurizer), the heat contained in the exhaust flue gas can be recovered effectively and the water consumption can be reduced in the FGD resulted from the temperature dropped flue gas. The impacts on the related apparatuses after installing LPE in a CFPP are analyzed and the internal relationships among correlated parameters are presented. The efficiencies of LPE installed in a CFPP evaluated by the first law, the second law and the thermal equilibrium efficiencies are also compared and analyzed. A detailed case study based on a 350 MW CFPP unit is presented and the variations of the thermal performance after the installation of LPE are investigated. The results show that the second law and the thermal equilibrium efficiencies are increased which can be indicators to evaluate the performance of the LPE system while the first law efficiency is decreased after installing LPE. Results also show that the saving of SCE (standard coal equivalent) is 3.85 g/(kW·h) for this CFPP unit under full load after installing LPE.

Chaojun Wang; Boshu He; Linbo Yan; Xiaohui Pei; Shinan Chen

2014-01-01T23:59:59.000Z

197

31 - Economizers  

Science Journals Connector (OSTI)

Publisher Summary Economizers for boilers have been available for nearly 150 years, almost as long as boilers themselves. For modem shell boilers, high efficiencies have made it difficult to justify the use of an economizer, the final decision being based in terms of payback period, which is also dependent on fuel prices. Watertube boilers need an economizer section in the gas passes in order to obtain satisfactory efficiency. The economizer is integrated into the overall design, normally between the convective super-heater and the air heater if fitted. In shell boilers with a working pressure of between 7 and 17 bar the temperature of the mass of water in the boiler is typically in the range of 170-210°C. Allowing for a temperature difference of 30-50°C between the exhaust gases and the water temperature, the boiler exit gas temperature cannot be economically reduced beneath about 200-260°C, dependent on the operating pressure. It becomes necessary to modify the process principles to achieve further heat utilization and recovery. By using an economizer this is done by conducting the feedwater supply to the economizer wherein the exhaust gas passes over tubes carrying the feedwater. The feedwater represents a further cooling medium for the exhaust gases and provides the potential for the extra heat utilization.

Colin French

2003-01-01T23:59:59.000Z

198

Utility Power Network Systems This research addresses the issues of security, system behavior, and socio-economic  

E-Print Network (OSTI)

scenarios, are considered involving 500kV transmission lines being disabled between Washington State to the LADWP power system through two 500kV AC transmission lines and one 500kV DC transmission line. From Fig, the disabled transmission line at the border of Washington State and Oregon State is directly connected

Shinozuka, Masanobu

199

FINANCIAL ECONOMICS RESOURCE ECONOMICS AND POLICY  

E-Print Network (OSTI)

ECONOMICS FINANCIAL ECONOMICS RESOURCE ECONOMICS AND POLICY Program of Study The School of Economics at the University of Maine provides excellent opportunities for graduate students to study applied economics, financial economics, and policy analysis. The School of Economics administers the Master

Thomas, Andrew

200

Economics is a social science concerned with the economic behavior of consumers and producers as well  

E-Print Network (OSTI)

5/2013 ECONOMICS Economics is a social science concerned with the economic behavior of consumers and producers as well as the operation and evaluation of economic systems. Economists study questions like why does the price of gasoline go up and down and what can we do to improve the economy. Studying economics

Note: This page contains sample records for the topic "air-volume system economizer" 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

ECONOMIC DISPATCH  

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

ECONOMIC DISPATCH ECONOMIC DISPATCH OF ELECTRIC GENERATION CAPACITY A REPORT TO CONGRESS AND THE STATES PURSUANT TO SECTIONS 1234 AND 1832 OF THE ENERGY POLICY ACT OF 2005 United States Department of Energy February 2007 ECONOMIC DISPATCH OF ELECTRIC GENERATION CAPACITY A REPORT TO CONGRESS AND THE STATES PURSUANT TO SECTIONS 1234 AND 1832 OF THE ENERGY POLICY ACT OF 2005 Sections 1234 and 1832 of the Energy Policy Act of 2005 (EPAct) 1 direct the U.S. Department of Energy (the Department, or DOE) to: 1) Study the procedures currently used by electric utilities to perform economic dispatch; 2) Identify possible revisions to those procedures to improve the ability of non-utility generation resources to offer their output for sale for the purpose of inclusion in

202

Technical and Economic Analysis of Thermal Solar Energy and Rainwater Use in a School Building Hydraulic System: A Case Study in a Brazilian City  

E-Print Network (OSTI)

TECHNICAL AND ECONOMICAL ANALYSIS OF THERMAL SOLAR ENERGY AND RAINWATER USE IN A SCHOOL BUILDING HYDRAULIC SYSTEM: A CASE STUDY IN A BRAZILIAN CITY Leila Maria Beloni C. Proti 1 , Ederaldo Godoy Júnior 2 , José Rui Camargo 3 1 Belo Horizonte... Leilabeloni@ig.com.br; rui@mec.unitau.br Abstract Thermal solar energy and rainwater utilization systems are presented as effective alternatives to the sole use of potable water and electricity in a Brazilian school building in Belo Horizonte...

Beloni, L. M.; Proti, C.; Godoy, E.; Camargo, J.

2005-01-01T23:59:59.000Z

203

Techno-economic analysis of using corn stover to supply heat and power to a corn ethanol plant - Part 2: Cost of heat and power generation systems  

SciTech Connect

This paper presents a techno-economic analysis of corn stover fired process heating (PH) and the combined heat and power (CHP) generation systems for a typical corn ethanol plant (ethanol production capacity of 170 dam3). Discounted cash flow method was used to estimate both the capital and operating costs of each system and compared with the existing natural gas fired heating system. Environmental impact assessment of using corn stover, coal and natural gas in the heat and/or power generation systems was also evaluated. Coal fired process heating (PH) system had the lowest annual operating cost due to the low fuel cost, but had the highest environmental and human toxicity impacts. The proposed combined heat and power (CHP) generation system required about 137 Gg of corn stover to generate 9.5 MW of electricity and 52.3 MW of process heat with an overall CHP efficiency of 83.3%. Stover fired CHP system would generate an annual savings of 3.6 M$ with an payback period of 6 y. Economics of the coal fired CHP system was very attractive compared to the stover fired CHP system due to lower fuel cost. But the greenhouse gas emissions per Mg of fuel for the coal fired CHP system was 32 times higher than that of stover fired CHP system. Corn stover fired heat and power generation system for a corn ethanol plant can improve the net energy balance and add environmental benefits to the corn to ethanol biorefinery.

Mani, Sudhagar [University of Georgia; Sokhansanj, Shahabaddine [ORNL; Togore, Sam [U.S. Department of Energy; Turhollow Jr, Anthony F [ORNL

2010-03-01T23:59:59.000Z

204

Energy and economic performance analysis of an open cycle solar desiccant dehumidification air-conditioning system for application in Hong Kong  

Science Journals Connector (OSTI)

In this article, a transient simulation model and the EnergyPlus were used to study the energy performance and economical feasibility for integrating a solar liquid desiccant dehumidification system with a conventional vapor compression air-conditioning system for the weather condition of Hong Kong. The vapor compression system capacity in the solar assisted air-conditioning system can be reduced to 19 kW from original 28 kW of a conventional air-conditioning system as a case study due to the solar desiccant cooling. The economical performance of the solar desiccant dehumidification system is compared with that of the conventional air-conditioning system. The results show that the energy saving potentials due to incorporation of the solar desiccant dehumidification system in a traditional air-conditioning system is significant for the hot wet weather in Hong Kong due to higher COP resulted from higher supply chilled water temperature from chiller plants. The annual operation energy savings for the hybrid system is 6760 kWh and the payback period of the hybrid system is around 7 years. The study shows that the solar assisted air-conditioning is a viable technology for utilizations in subtropical areas.

Yutong Li; Lin Lu; Hongxing Yang

2010-01-01T23:59:59.000Z

205

What economics courses are there? Economics and International Development  

E-Print Network (OSTI)

Economics Essentials What economics courses are there? BA Economics Economics and International Development Economics and International Relations Economics and Politics Philosophy, Politics and Economics (PPE) (p103) BSc Economics Economics and Management Studies Finance and Business (p46) Mathematics

Sussex, University of

206

Techno-economic analysis of a coal-fired CHP based combined heating system with gas-fired boilers for peak load compensation  

Science Journals Connector (OSTI)

Combined heat and power (CHP) plants dominate the heating market in China. With the ongoing energy structure reformation and increasing environmental concerns, we propose gas-fired boilers to be deployed in underperforming heating substations of heating networks for peak load compensation, in order to improve both energy efficiency and environmental sustainability. However, due to the relatively high price of gas, techno-economic analysis is required for evaluating different combined heating scenarios, characterized by basic heat load ratio (?). Therefore, we employ the dynamic economics and annual cost method to develop a techno-economic model for computing the net heating cost of the system, considering the current state of the art of cogeneration systems in China. The net heating cost is defined as the investment costs and operations costs of the system subtracted by revenues from power generation. We demonstrate the model in a real-life combined heating system of Daqing, China. The results show that the minimum net heating cost can be realized at ?=0.75 with a cost reduction of 16.8% compared to coal heating alone. Since fuel cost is the dominating factor, sensitivity analyses on coal and gas prices are discussed subsequently.

Hai-Chao Wang; Wen-Ling Jiao; Risto Lahdelma; Ping-Hua Zou

2011-01-01T23:59:59.000Z

207

Energy Efficient Single Stack Exhaust Fan Systems (E3S3F)  

E-Print Network (OSTI)

This paper first investigates the fan energy performance of a constant air volume exhaust system. Two single stack energy efficient exhaust fan systems (E3S3F) are presented. The E3S3F-I has the static pressure sensor located at the inlet...

Wang, G.; Liu, M.

2001-01-01T23:59:59.000Z

208

Biomass Power and Conventional Fossil Systems with and without CO2 Sequestration Â… Comparing the Energy Balance, Greenhouse Gas Emissions and Economics  

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

* NREL/TP-510-32575 * NREL/TP-510-32575 Biomass Power and Conventional Fossil Systems with and without CO 2 Sequestration - Comparing the Energy Balance, Greenhouse Gas Emissions and Economics Pamela L. Spath Margaret K. Mann National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 NREL is a U.S. Department of Energy Laboratory Operated by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 January 2004 * NREL/TP-510-32575 Biomass Power and Conventional Fossil Systems with and without CO 2 Sequestration - Comparing the Energy Balance, Greenhouse Gas Emissions and Economics Pamela L. Spath Margaret K. Mann Prepared under Task No. BB04.4010 National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393

209

Economical Desalination  

Science Journals Connector (OSTI)

... DESALINATION as a source of fresh water is well established technically. Now, like nuclear power ... and most important, conclusion is that flash distillation, so far the market leader in desalination equipment, is unlikely to be economic for base load production of fresh water in ...

1968-06-08T23:59:59.000Z

210

Economical and environmental assessment of an optimized solar cooling system for a medium-sized benchmark office building in Los Angeles, California  

Science Journals Connector (OSTI)

This paper presents a systematic energetic, economical, and environmental assessment on a solar cooling system for a medium-sized office building in Los Angeles, California by means of system modeling. The studied solar cooling system primarily consists of evacuated tube solar collectors, a hot water storage tank, a single-effect LiBr–H2O absorption chiller, and a gas-fired auxiliary heater. System performance optimization and sensitivity analysis were conducted by varying two major parameters (i.e. storage tank volume and collector area). The results suggest that a trade-off exists between economic performance indicated by the equivalent uniform annual cost (EUAC) and the energetic/environmental performance indicated by the solar fraction and CO2 reduction percentage, respectively. The cost of carbon footprint reduction was defined and served as an indicator for the overall system performance. Based on this indicator, the optimal system design could be found for a solar cooling system. The approach adapted in this study can be applied to other buildings located in different climate zones to reveal the cost and benefits of solar cooling technologies and facilitate decision-making.

Yin Hang; Ming Qu; Fu Zhao

2011-01-01T23:59:59.000Z

211

UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into New SUB Rooftop Garden Irrigations Systems  

E-Print Network (OSTI)

for the new SUB roof. When it comes to sustainability, having the building be as green as possible into sustainability. The amount of water saved within the 100 year life span of the new SUB building is crucialUBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into New

212

Multicriteria Analysis of Economic Activity for Two Groups of European Countries by Decision Support System MKA-1*  

E-Print Network (OSTI)

. Five macro-economic criteria have been considered in the analysis: GDP per capita; Exports (% of GDP); Imports (% of GDP); Inflation rate (consumer prices); Unemployment rate. Keywords: multicriteria analysis of multicriteria sorting. Many real life problems in management practice may be formulated as problems of choice

Borissova, Daniela

213

Discussion Papers in Economics Department of Economics  

E-Print Network (OSTI)

Discussion Papers in Economics Department of Economics University of Surrey Guildford Surrey GU2 7 participants at Aberdeen, Essex, LSE, UCL, the Paris School of Economics and from participants in the 2007 Royal Economic Society annual conference held in Warwick, the 2007 American Law and Economics

Doran, Simon J.

214

WARWICK ECONOMICS DEPARTMENT WARWICK ECONOMICS DEPARTMENT  

E-Print Network (OSTI)

WARWICK ECONOMICS DEPARTMENT twenty thirteen- fourteen Prospectus #12;WARWICK ECONOMICS DEPARTMENT-being worldwide." "Economics is the issue of the times in which we live." Contents ninety-four The percent Inspirational instruction 11 Highlighted Research 13 Behavioural Economics 14 Development 16 Economic History 18

Davies, Christopher

215

Fuel economizer  

SciTech Connect

A fuel economizer device for use with an internal combustion engine fitted with a carburetor is disclosed. The fuel economizer includes a plate member which is mounted between the carburetor and the intake portion of the intake manifold. The plate member further has at least one aperture formed therein. One tube is inserted through the at least one aperture in the plate member. The one tube extends longitudinally in the passage of the intake manifold from the intake portion toward the exit portion thereof. The one tube concentrates the mixture of fuel and air from the carburetor and conveys the mixture of fuel and air to a point adjacent but spaced away from the inlet port of the internal combustion engine.

Zwierzelewski, V.F.

1984-06-26T23:59:59.000Z

216

Economic analysis  

SciTech Connect

The Energy Policy and Conservation Act (EPCA) mandated that minimum energy efficiency standards be established for classes of refrigerators and refrigerator-freezers, freezers, clothes dryers, water heaters, room air conditioners, home heating equipment, kitchen ranges and ovens, central air conditioners, and furnaces. EPCA requires that standards be designed to achieve the maximum improvement in energy efficiency that is technologically feasible and economically justified. Following the introductory chapter, Chapter Two describes the methodology used in the economic analysis and its relationship to legislative criteria for consumer product efficiency assessment; details how the CPES Value Model systematically compared and evaluated the economic impacts of regulation on the consumer, manufacturer and Nation. Chapter Three briefly displays the results of the analysis and lists the proposed performance standards by product class. Chapter Four describes the reasons for developing a baseline forecast, characterizes the baseline scenario from which regulatory impacts were calculated and summarizes the primary models, data sources and assumptions used in the baseline formulations. Chapter Five summarizes the methodology used to calculate regulatory impacts; describes the impacts of energy performance standards relative to the baseline discussed in Chapter Four. Also discussed are regional standards and other program alternatives to performance standards. Chapter Six describes the procedure for balancing consumer, manufacturer, and national impacts to select standard levels. Details of models and data bases used in the analysis are included in Appendices A through K.

None

1980-06-01T23:59:59.000Z

217

The Information Theoretic Foundations of a Probabilistic and Predictive Micro and Macro Economics  

E-Print Network (OSTI)

dynamic micro and macro economic processes and systems. Keydynamic state space economic processes and, importantly, toassociated with the economic process, and ii) predictability

Judge, George

2012-01-01T23:59:59.000Z

218

An Economic analogy to Electrodynamics  

E-Print Network (OSTI)

In this note, we would like to find the laws of electrodynamics in simple economic systems. In this direction, we identify the chief economic variables and parameters, scalar and vector, which are amenable to be put directly into the crouch of the laws of electrodynamics, namely Maxwell's equations. Moreover, we obtain Phillp's curve, recession and Black-Scholes formula, as sample applications.

Sanjay Dasari; Anindya Kumar Biswas

2010-01-12T23:59:59.000Z

219

Economic impacts study  

SciTech Connect

This is a progress report on the first phase of a project to measure the economic impacts of a rapidly changing U.S. target base. The purpose of the first phase is to designate and test the macroeconomic impact analysis model. Criteria were established for a decision-support model. Additional criteria were defined for an interactive macroeconomic impact analysis model. After a review of several models, the Economic Impact Forecast System model of the U.S. Army Construction Research Laboratory was selected as the appropriate input-output tool that can address local and regional economic analysis. The model was applied to five test cases to demonstrate its utility and define possible revisions to meet project criteria. A plan for EIFS access was defined at three levels. Objectives and tasks for scenario refinement are proposed.

Brunsen, W.; Worley, W.; Frost, E.

1988-09-30T23:59:59.000Z

220

Economic Growth Policies & Economic Growth Theory Influences.  

E-Print Network (OSTI)

?? The aim of this thesis is to describe the presence of theories for economic growth in municipalities’ economic growth strategies, and to compare the… (more)

Hallden, Sophie

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

Economic Impact Reporting Framework  

E-Print Network (OSTI)

Economic Impact Reporting Framework 2007/08 November 2008 #12;#12;Economic Impact Reporting Framework 2007/08 #12;STFC Economic Impact Reporting Framework 2007/08 Contents: Introduction..............................................................................................................................................2 1: Overall Economic Impacts

222

Economic Impact Reporting Framework  

E-Print Network (OSTI)

Economic Impact Reporting Framework 2008/09 #12;#12;Economic Impact Reporting Framework 2008/09 #12;STFC Economic Impact Reporting Framework 2008/09 Contents: Introduction..............................................................................................................................................2 1: Overall Economic Impacts

223

WEST VIRGINIA ECONOMIC OUTLOOK  

E-Print Network (OSTI)

WEST VIRGINIA ECONOMIC OUTLOOK 2009 BUREAU OF BUSINESS AND ECONOMIC RESEARCH College of Business and Economics West Virginia University #12;West Virginia Economic Outlook 2009 George W. Hammond, Associate Director, BBER, and Associate Professor of Economics West Virginia Economic Outlook 2009 is published

Mohaghegh, Shahab

224

Economics & Finance Degree options  

E-Print Network (OSTI)

98 Economics & Finance Degree options MA or BSc (Single Honours Degrees) Applied Economics Economics Financial Economics BA (International Honours Degree) Economics (See page 51) MA or BSc (Joint Honours Degrees) Economics and one of: Geography Management Mathematics MA (Joint Honours Degrees

Brierley, Andrew

225

Economic Growth and Development Economics 777  

E-Print Network (OSTI)

Economic Growth and Development Economics 777 July 18, 2008 Fall Semester 2008 Professor J. H. Mc of economic growth and development. We will analyze several different growth models and look at some recent empirical research. Text The text for this course is: Economic Growth (2nd Edition) by Robert J. Barro

Almor, Amit

226

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

Environmental Value of Solar Thermal Systems in MicrogridsEnvironmental Value of Solar Thermal Systems in Microgridsa) ABSTRACT The addition of solar thermal and heat storage

Marnay, Chris

2010-01-01T23:59:59.000Z

227

Economic and European Union Environmental Sustainability Criteria Assesment of Bio-Oil-Based Biofuel Systems: Refinery Integration Cases  

Science Journals Connector (OSTI)

Between bio-oil gasification and upgrading routes in Figure 2, the former route comprises of proven technologies and “can be commercially deployable by industrial companies with infrastructure and expertise available to produce marketable products”. ... For the scenario with all hydrogen sold by the refinery, (61.5 + 20.67) kmol/t of bio-oil at the market rate of 1200 $/t and stable oil sold by the upgrader to the refinery at the market rate of 490 $/t, 141.8 $/t or 19.8 $/bbl of crude oil of economic incentive from the selling of all the hydrogen and 39.3 $/t or 3.3 $/bbl of crude oil of economic incentive from the replacement of final biodiesel blending by the renewable diesel production from the stable oil coprocessing are obtained. ... Given the volatile and vulnerable petroleum markets, oil companies are under pressure for moving toward a greener future, within which refinery expansion strategy may be a commonplace. ...

Jhuma Sadhukhan; Kok Siew Ng

2011-04-19T23:59:59.000Z

228

Procedure and Application for Determining the Cold Deck and Hot Deck Airflow in a Dual-Duct System  

E-Print Network (OSTI)

This paper introduces an innovative method to determine the cold and hot airflow through a dual-duct variable air volume (VAV) system. The actual building load can be identified based on the calculated airflow and temperature for both the cold...

Liu, G.; Mingsheng, L.

2006-01-01T23:59:59.000Z

229

Design, economic analysis and environmental considerations of mini-grid hybrid power system with reverse osmosis desalination plant for remote areas  

Science Journals Connector (OSTI)

This paper discusses the design process of a mini-grid hybrid power system with reverse osmosis desalination plant for remote areas, together with an economic analysis and environmental considerations for the project life cycle. It presents a design scenario for supplying electricity and fulfilling demand for clean water in remote areas by utilising renewable energy sources and a diesel generator with a reverse osmosis desalination plant as a deferrable load. The economic issues analysed are the initial capital cost needed, the fuel consumption and annual cost, the total net present cost (NPC), the cost of electricity (COE) generated by the system per kWh and the simple payback time (SPBT) for the project. The environmental considerations discussed are the amount of gas emissions, such as CO2 and NOx, as well as particulate matter released into the atmosphere. Simulations based on an actual set of conditions in a remote area in the Maldives were performed using HOMER for two conditions: before and after the Tsunami of 26th December 2004. Experimental results on the prototype 5 kVA mini-grid inverter and reverse osmosis desalination plant, rated at 5.5 kWh/day, are also presented here to verify the idea of providing power and water supplies to remote areas.

Ahmad Agus Setiawan; Yu Zhao; Chem. V. Nayar

2009-01-01T23:59:59.000Z

230

Assessment and economic analysis of the MOD III Stirling-engine driven chiller system. Final report, October 1989-July 1990  

SciTech Connect

The Stirling engine is an inherently clean and efficient engine. With the requirements for environmentally benign emissions and high energy efficiency, the Stirling engine is an attractive alternative to both internal combustion (IC) engines and electric motors. The study evaluated a Stirling-engine-driven chiller package. Technically, the Stirling engine is a good selection as a compressor drive, with inherently low vibrations, quiet operation, long life, and low maintenance. Exhaust emissions are below the projected 1995 stringent California standards. Economically, the Stirling-engine-driven chiller is a viable alternative to both IV-engine and electric-driven chillers, trading off slightly higher installed cost against lower total operating expenses. The penetration of a small portion of the projected near-term stationary engine market opportunity will provide the volume production basis to achieve competitively priced engines.

Moryl, J.

1990-07-01T23:59:59.000Z

231

Economic evaluation and conceptual design of optimal agricultural systems for production of food and energy. Final report  

SciTech Connect

The major technical and economic considerations which determined the scope of the study and the structure of the linear programming (LP) models are discussed. Four models, each representing a typical crop, beef, dairy, or swine farm in conjunction with ethanol facilities are characterized by the same general behavioral and mathematical model structure. Specific activities, constraints, and data for each of the four models are presented. An overview of the model structure is provided in the context of the general scope and background assumptions, and of its LP implementation. Simulated initial conditions and outcomes are reported for typical Illinois farms. Policy implications are discussed as related to agriculture, energy, and inter-industry coordination. (MHR)

none,

1982-03-01T23:59:59.000Z

232

Implementation of the Laboratory Air Handling Unit Systems (LAHU)  

E-Print Network (OSTI)

Implementation of the Laboratory Air Handling Unit Systems (LAHU) Y. Cui Graduate Student Energy Systems Laboratory University of Nebraska-Lincoln Omaha, NE, USA M. Liu, Ph.D., P.E. Associate Professor Energy Systems Laboratory...-around coils [18, 19], the variable air volume (VAV) fume hoods [8-16] and the usage-based control devices (UBC) [17]. These measures have effectively reduced the cooling energy, preheat energy and fan power consumption, and sometime, improved indoor...

Cui, Y.; Liu, M.; Conger, K.

2003-01-01T23:59:59.000Z

233

Assessing the technical, economic and policy-centered feasibility of a proposed satellite communication system for the developing world  

E-Print Network (OSTI)

Satellite communication systems remain one of the most under utilized development mediums in less industrialized countries. This research proposes to establish a low cost satellite communications system tailored specifically ...

Samuels, Ayanna Terehas

2005-01-01T23:59:59.000Z

234

Integrating demand into the U.S. electric power system : technical, economic, and regulatory frameworks for responsive load  

E-Print Network (OSTI)

The electric power system in the US developed with the assumption of exogenous, inelastic demand. The resulting evolution of the power system reinforced this assumption as nearly all controls, monitors, and feedbacks were ...

Black, Jason W. (Jason Wayne)

2005-01-01T23:59:59.000Z

235

Energy-economic theory and mathematical models for combining the systems of man and nature, case study: The urban region of Miami, Florida  

Science Journals Connector (OSTI)

This paper presents a study of the urban region of Miami, Fla. with consideration of energy flow and the relationship between energy theory and economics. Much of this work is based on the theories and work of Dr Howard T. Odum at the University of Florida. A theory of energy quality is presented which is an attempt to relate energies of different concentrations in their ability to do work. This theory allows comparison of the systems of man and nature. Another theory is proposed which seeks to describe the ability of a region to compete based on its flows of natural and fossil fuel energies. Economic, natural system, and energy data were compiled for the Miami urban region from 1950–1972. Cross-correlation of this data showed significant levels of correlation between the rate of change of fossil fuel use and the rates of change of population, budget, sales tax, income, building structure, and number of telephones. Calculation of several urban indicators for 1972 showed a fossil fuel energy density of 300 kcal/m2/day in the urbanized area, a per capita energy consumption of 53.8 × 106 kcal/capita/year, a ratio of natural to fossil fuel energies of 0.25, a developed area of 260 miles2 (673.4 km2), and a rate of development of 6.5 miles2 (16.8 km2) per year. An overall model of Miami is presented with flows and storages quantified for 1972. Based on this model a simpler model was simulated on an analog computer. This model consisted of a system of first-order in time, non-linear differential equations which included fossil fuel energy flows, main economic flows, external price functions, building structure, natural energies, and population. This model was simulated for several linearly increasing future price functions and several sets of future energy functions. Natural energies within the region were calculated by determining the land areas associated with various ecosystem types. Estimating the productivities of these systems on a per area basis allowed calculation of total energy flows. The energies associated with winds, tides, waves, and fresh/salt water concentration gradients were also determined. It was found that the ratio of natural to fossil fuel energy changed from 1.77 in 1950 to 0.25 in 1972.

James Zucchetto

1975-01-01T23:59:59.000Z

236

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

thermal absorption solar photo- storage chiller thermalbetween solar thermal collection and storage systems and CHPimpact of solar thermal and heat storage on CO 2 emissions

Marnay, Chris

2010-01-01T23:59:59.000Z

237

Solar Trough Organic Rankine Electricity System (STORES) Stage 1: Power Plant Optimization and Economics; November 2000 -- May 2005  

SciTech Connect

Report regarding a Stage 1 Study to further develop the concept of the Solar Trough Organic Rankine Cycle Electricity Systems (STORES).

Prabhu, E.

2006-03-01T23:59:59.000Z

238

Integrating Demand into the U.S. Electric Power System: Technical, Economic, and Regulatory Frameworks for Responsive Load  

E-Print Network (OSTI)

for Responsive/Adaptive Load by Jason W. Black Massachusetts Institute of Technology Submitted to the Engineering integration of demand response. Integrating demand into the US electricity system will allow the development, and market issues to determine a system structure that provides incentives for demand response. An integrated

de Weck, Olivier L.

239

The influence of feedstock drying on the performance and economics of a biomass gasifier–engine CHP system  

Science Journals Connector (OSTI)

The need to dry biomass feedstocks before they can be gasified can place a large energy and capital cost burden on small-to-medium scale biomass gasification plants for the production of heat and power. Drying may not always be unavoidable, but as biomass moisture content to the gasifier increases, the quality of the product gas deteriorates along with the overall performance of the whole system. This system modelling study addresses the influence of feedstock moisture content both before and after drying on the performance and cost of a biomass gasifier–engine system for combined heat and power at a given scale and feedstock cost. The scale range considered 0.5–3.0 MWe. The system comprises an updraft gasifier with external thermal and catalytic tar cracking reactors, gas clean-up and a spark-ignition gas engine. A spreadsheet-based system model is constructed, with individual worksheets corresponding to sub-models of system components, and a number of drying technology options and modes of operation are examined. Wherever possible, data supplied by manufacturers or taken from real systems is used in the construction of the sub-models, particularly in the derivation of cost functions.

J.G. Brammer; A.V. Bridgwater

2002-01-01T23:59:59.000Z

240

Techno-Economic Assessment of Solar PV/Thermal System for Power and Cooling Generation in Antalya, Turkey.  

E-Print Network (OSTI)

?? In this study a roof-top PVT/absorption chiller system is modeled for a hotel building in Antalya, Turkey to cover the cooling demand of the… (more)

Kumbasar, Serdar

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

Effects of long-term straw incorporation on the net global warming potential and the net economic benefit in a rice–wheat cropping system in China  

Science Journals Connector (OSTI)

Abstract Straw incorporation has multiple effects on greenhouse gas emissions and soil productivity. However, few studies have comprehensively evaluated the effects of long-term straw incorporation. An ongoing long-term straw incorporation experiment in a rice–wheat cropping system in China was established in 1990 and was used in the present study to evaluate the net global warming potential (NGWP) and the net economic benefit (NEB) of the straw return. The following four field treatments were included: a control (CK); N, P and K fertilization (NPK); fertilization plus a moderate rate of straw application (NPKS1); and fertilization plus a high rate of straw application (NPKS2). We calculated the increase in the soil organic carbon (SOC) and the straw-induced emissions of CH4 and N2O, which were expressed as the global warming potential (GWP) in units of CO2-equivalent (CO2-eq) at the 100-year scale. The straw-induced NEB was defined as the difference between the economic income, which was calculated by multiplying the increase in straw-induced crop grain yield by the grain price, and the economic loss was computed by multiplying the increase in straw-induced CO2-eq emissions by the carbon price. The results showed that long-term straw incorporation significantly increased the CH4 emissions and the topsoil SOC density. The GWP of the straw-induced CH4 emissions was 3.21–3.92 times that of the straw-induced SOC sequestration rate, suggesting that long-term direct straw incorporation in the rice–wheat systems worsens rather than mitigates the climate change. Additionally, continuous straw incorporation slightly enhanced the rice and wheat grain yields, contributing to the production of the NEB. We determined that under the current carbon price, ranging from 2.55 to 31.71 EUR per ton CO2-eq, the direct straw incorporation will produce a positive NEB, ranging from 156 to 658 RMB ha?1 year?1, if the grain yield prices do not fluctuate, which does not provide a significant incentive for farmers to change from their traditional direct straw incorporation pattern. Considering the other benefits that the straw application produced, such as improving soil fertility and the water retention capacity, we recommend that the government should establish an incentive for ecological compensation to encourage farmers to implement proper straw incorporation, such as composting straw under aerobic conditions before application.

Longlong Xia; Shuwei Wang; Xiaoyuan Yan

2014-01-01T23:59:59.000Z

242

Economics Page 99Sonoma State University 2014-2015 Catalog DEPARTMENT OFFICE  

E-Print Network (OSTI)

Economics Page 99Sonoma State University 2014-2015 Catalog ECONOMICS DEPARTMENT OFFICE Stevenson Visser *Richard West *Faculty Early Retirement Program Programs Offered Bachelor of Arts in Economics Minor in Economics Economics is a social science that focuses on the organization of economic systems

Ravikumar, B.

243

Economics Page 101Sonoma State University 2012-2013 Catalog DEPARTMENT OFFICE  

E-Print Network (OSTI)

Economics Page 101Sonoma State University 2012-2013 Catalog ECONOMICS DEPARTMENT OFFICE Stevenson Visser *Richard West *Faculty Early Retirement Program Programs Offered Bachelor of Arts in Economics Minor in Economics Economics is a social science that focuses on the organization of economic systems

Ravikumar, B.

244

Indicator-based economic, environmental, and social sustainability assessment of a small gasification bioenergy system fuelled with food processing residues from the Mediterranean agro-industrial sector  

Science Journals Connector (OSTI)

Abstract Small-scale gasification systems coupled with internal combustion engines could be innovative alternatives for combined heat and power production when fuelled with agricultural residues, providing benefits related to both food processing waste management and sustainable agriculture. In the present study, an indicator-based estimation of sustainability was performed for a gasification-based bioenergy system considering not only economic but also environmental and social issues. The analysed scenario consisted of an installed capacity of 40 kWel, with an investment cost estimated to be approximately 1520 €/kWhel and a net profit up to 20,000 €/year. However, commercial success depends on instruments of reducing capital investment, such as subsidies, electricity feed-in tariffs, and biomass prices. Additional benefits such as low- or zero-cost feedstock and zero-cost biomass logistics suggest that small-scale gasification systems based on agricultural residues are likely to play an important role in future energy supplies for Mediterranean countries.

P. Manara; A. Zabaniotou

2014-01-01T23:59:59.000Z

245

2014 REGIONAL ECONOMIC OUTLOOK  

E-Print Network (OSTI)

2014 REGIONAL ECONOMIC OUTLOOK #12;2014 REGIONAL ECONOMIC OUTLOOK 2014 Overview The Cincinnati USA Partnership for Economic Development and the Northern Kentucky Chamber of Commerce are pleased to present the 2014 Regional Economic Outlook. This report was prepared by the Cincinnati USA Partnership's Regional

Boyce, Richard L.

246

Economics Department Mission Statement  

E-Print Network (OSTI)

Economics Department Mission Statement The mission of the Economics Department at the University of Pittsburgh at Johnstown is to develop the ability of our students to understand economic concepts, and in public policy. The central goals of an education in economics are to acquire: -- an understanding of how

Jiang, Huiqiang

247

Master in Advanced Economics, curriculum Economic analysis Master in Advanced Economics, curriculum Economic analysis aims to provide a broad education  

E-Print Network (OSTI)

Master in Advanced Economics, curriculum Economic analysis Master in Advanced Economics, curriculum Economic analysis aims to provide a broad education in the fields of methods, techniques and professional that work into European and International areas. Economic analysis curriculum especially focuses

Di Pillo, Gianni

248

Economic evaluation of small-scale photovoltaic hybrid systems for mini-grid applications in far north Cameroon  

Science Journals Connector (OSTI)

A comparison between photovoltaic hybrid systems (PVHS), standalone photovoltaic (PV) and standalone diesel generator options is performed using the net present value (NPV) technique. A typical village mini-grid energy demand of 7.08 kWh/day is considered in the computation of energy costs and breakeven grid distances. A first sensitivity analysis is conducted using remote diesel prices of 0.8 €/l, 0.98 €/l, 1.12 €/l, 1.28 €/l with a PV module cost of 7.5 €/Wp. A second sensitivity analysis is also done using PV module costs of 5.25 €/Wp, 6 €/Wp, 6.75 €/Wp, 7.5 €/Wp with a diesel price of 1.12 €/l. The energy cost for the diesel option was found to be 0.812 €/kWh at a diesel fuel price of 1.12 €/l. The sensitivity analyses showed that minimum energy costs were attained in PVHS at renewable energy fractions in the range 82.6–95.3%. In the second sensitivity analysis the energy costs and breakeven grid distances were found to be in the ranges 0.692–0.785 €/kWh and 5.1–5.9 km respectively. For a PV module cost of 5.25 €/Wp, the lowest energy cost for the PVHS option was 0.692 €/kWh at a final renewable energy fraction of 95.3% with the diesel generator hours being 37 h compared to 2075 h in the standalone diesel generator option. Consequently, a 30% reduction in custom duties and taxes on imported PV modules and sub-systems would increase the use of small-scale and climate friendly PV mini-grids in remote areas of far north Cameroon that have an annual insolation of at least 5.55 kWh/m2/day.

Nfah Eustace Mbaka; Ngundam John Mucho; Kenne Godpromesse

2010-01-01T23:59:59.000Z

249

Techno-economic analysis of a small size short range EES (electric energy storage) system for a PV (photovoltaic) plant serving a SME (small and medium enterprise) in a given regulatory context  

Science Journals Connector (OSTI)

Abstract Considering the case of small-medium size plants based on PV (photovoltaic), an analysis was developed in order to model, simulate and optimize an electricity storage system to be coupled to a small photovoltaic plant applied to an industry load, to calculate its profitability in a given regulatory context. The case study is the current Italian electricity market. The analysis was done on a small industrial plant in the area of Torino (North-West Italy), with its own photovoltaic plant connected to the public electrical grid. After an analysis of the present situation, the aim of the analysis is to understand the behaviour, from an economic point of view, of the self-consumption of renewable energy in case of a sudden deregulation of the market (switch off of feed in tariffs or RES (renewable energy system) kWh). The study includes a sensitivity analysis of the main technical and economic parameters in order to identify which of them have the greatest influence on economic performance, and therefore which parameters have to be considered with special care by the producers (technical and economic parameters) and the regulatory authorities (regulations) to decide and optimize the adoption of storage systems as a way to sustain the massive introduction of RES in the energy arena.

R. Scozzari; M. Santarelli

2014-01-01T23:59:59.000Z

250

CHARTING BC'S ECONOMIC FUTURE  

E-Print Network (OSTI)

CHARTING BC'S ECONOMIC FUTURE discussionguide 100communityconversations #12;1 Thank you for agreeing to participate in this Community Conversation about BC's economic future. Each year Simon Fraser is "Charting BC's Economic Future". Faced with an increasingly competitive global economy, it is more important

Kavanagh, Karen L.

251

Economic Evaluation of Radiopharmaceutical  

E-Print Network (OSTI)

97-2 Planning Report Economic Evaluation of Radiopharmaceutical Research at NIST U.S Department Radiation Division Physics Laboratory National Institute of Standards and Technology #12;Economic Evaluation of Standards and Technology by Albert N. Link Professor of Economics University of North Carolina at Greensboro

252

Economic Value of Agricultural  

E-Print Network (OSTI)

Economic Value of Agricultural Research Public Investment in Texas Agricultural Research Yields Significant Economic Returns #12;Texas agricultural producers and especially consumers benefit directly from in the Department of Agricultural Economics at Texas A&M University conducted analyses using an agriculture

253

Economic Improvement Districts (Indiana) | Department of Energy  

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

Improvement Districts (Indiana) Improvement Districts (Indiana) Economic Improvement Districts (Indiana) < Back Eligibility Agricultural Commercial Construction Fuel Distributor Industrial Installer/Contractor Investor-Owned Utility Local Government Municipal/Public Utility Retail Supplier Rural Electric Cooperative 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 Indiana Program Type Bond Program Industry Recruitment/Support Provider Indiana Economic Development Corporation A legislative body may adopt an ordinance establishing an economic improvement district and an Economic Improvement Board to manage development in a respective district. The Board can choose to issue revenue

254

Economic Development Incentive Program (Massachusetts) | Department of  

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

Economic Development Incentive Program (Massachusetts) Economic Development Incentive Program (Massachusetts) Economic Development Incentive Program (Massachusetts) < Back Eligibility Agricultural Commercial Construction Fuel Distributor Industrial Installer/Contractor Institutional Investor-Owned Utility Municipal/Public Utility Nonprofit Retail Supplier Systems Integrator Transportation Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Massachusetts Program Type Corporate Tax Incentive Provider Office of Business Development The Economic Development Incentive Program (EDIP) is a tax incentive program designed to foster job creation and stimulate business growth throughout the Commonwealth. Participating companies may receive state and

255

Economic and policy implications of pandemic influenza.  

SciTech Connect

Pandemic influenza has become a serious global health concern; in response, governments around the world have allocated increasing funds to containment of public health threats from this disease. Pandemic influenza is also recognized to have serious economic implications, causing illness and absence that reduces worker productivity and economic output and, through mortality, robs nations of their most valuable assets - human resources. This paper reports two studies that investigate both the short- and long-term economic implications of a pandemic flu outbreak. Policy makers can use the growing number of economic impact estimates to decide how much to spend to combat the pandemic influenza outbreaks. Experts recognize that pandemic influenza has serious global economic implications. The illness causes absenteeism, reduced worker productivity, and therefore reduced economic output. This, combined with the associated mortality rate, robs nations of valuable human resources. Policy makers can use economic impact estimates to decide how much to spend to combat the pandemic influenza outbreaks. In this paper economists examine two studies which investigate both the short- and long-term economic implications of a pandemic influenza outbreak. Resulting policy implications are also discussed. The research uses the Regional Economic Modeling, Inc. (REMI) Policy Insight + Model. This model provides a dynamic, regional, North America Industrial Classification System (NAICS) industry-structured framework for forecasting. It is supported by a population dynamics model that is well-adapted to investigating macro-economic implications of pandemic influenza, including possible demand side effects. The studies reported in this paper exercise all of these capabilities.

Smith, Braeton J.; Starks, Shirley J.; Loose, Verne W.; Brown, Theresa Jean; Warren, Drake E.; Vargas, Vanessa N.

2010-03-01T23:59:59.000Z

256

Energy, Environmental & Economic Systems Analysis  

E-Print Network (OSTI)

Market Simulations Opportunity Decision and Information Sciences Division Center for Energy of the Energy and Power Evaluation Program (ENPEP) to develop long- term energy market projections and to assess energy across all consuming sectors. The ENPEP-BALANCE market simulation approach is based on the concept

257

Wireless Demand Response Controls for HVAC Systems  

E-Print Network (OSTI)

art VAV: variable-air-volume VFD: variable frequency drivespeed command to the variable frequency drive(s) (VFDs). The

Federspiel, Clifford

2010-01-01T23:59:59.000Z

258

Building Energy Software Tools Directory: Photovoltaics Economics  

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

Photovoltaics Economics Calculator Photovoltaics Economics Calculator Web-based tool which allows you to describe your solar system in detail and provides a detailed breakdown of what sort of power you'll get out of it and how economical of a investment the system will be. It uses the TMY2 solar data from the NREL Renewable Resource Data Center. This calculator allows users to customize their setup, providing greater feedback on how much power is provided when, and most importantly, a detailed economics breakdown of how the investment works out. It also keeps track of battery charge states for off-grid users. Screen Shots Keywords solar, photovoltaic, economics Validation/Testing Validated against PVWatts, a widely recognized solar power output calculator. When given the exact same conditions, power production is

259

Economic Development | ornl.gov  

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

Economic Development Carbon Fiber Cluster Strategy Additive Manufacturing Cluster Strategy Entrepreneurial Development Programs Oak Ridge Science and Technology Park Economic...

260

Economics Page 105Sonoma State University 2008-2010 Catalog Department Office  

E-Print Network (OSTI)

Economics Page 105Sonoma State University 2008-2010 Catalog Department Office Stevenson Hall 2042 Offered Bachelor of arts in economics minor in economics secondary teaching credential preparation Economics is a social science that focuses on the organization of economic systems for the production

Ravikumar, B.

Note: This page contains sample records for the topic "air-volume system economizer" 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

Economics Page 129Sonoma State University 2006-2008 Catalog Department Office  

E-Print Network (OSTI)

Economics Page 129Sonoma State University 2006-2008 Catalog Department Office Stevenson Hall 2042 Bachelor of Arts in Economics Minor in Economics Secondary Teaching Credential Preparation Economics is a social science that focuses on the organization of economic systems for the production of goods

Ravikumar, B.

262

Use Feedwater Economizers for Waste Heat Recovery  

SciTech Connect

This revised ITP tip sheet on feedwater economizers for waste heat recovery provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

263

Economic Development Office  

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

Contacts Gary Spanner Economic Development Office Manager 509372-4296 ROB1210 Robin Conger Program Manager 509372-4328 ROB1221 Bernard Hansen Entrepreneurial Programs Manager...

264

Economics (College of Arts and Sciences) The economics major focuses on economics as a social science.  

E-Print Network (OSTI)

Economics (College of Arts and Sciences) The economics major focuses on economics as a social in the world? What types of political regimes best promote economic development? Are resource-rich developing countries cursed? Are drug cartels economically sound? Can humans work towards a better economic basis

Miles, Will

265

PROGRAMME SPECIFICATION POSTGRADUATE PROGRAMMES Programme name Health Economics  

E-Print Network (OSTI)

systems; and, to provide with tools and methods to analyse the economic causes and implications of health1 PROGRAMME SPECIFICATION ­ POSTGRADUATE PROGRAMMES KEY FACTS Programme name Health Economics Award for specialists in health economics continues to increase as the demand for more advanced and expensive health

Weyde, Tillman

266

Regenerative Boiler Feedwater Heater Economics  

E-Print Network (OSTI)

REGENERATIVE BOILER FEEDWATER HEATER ECONOMICS William L. Viar, PE waterland, Viar & Associates, Inc. Wilmington, Delaware ABSTRACT The basic Rankine Vapor Cycle has been r,~peatedly modified to improve efficiency. Always, the objective....g., first and second laws of thermodynamics) have improved and contributed to the evolution. The demands for larger systems with higher performance have been persistent. Progress i ve changes in the app1icat ion of the fundamental Rankine cycle have...

Viar, W. L.

267

The economics of heat mining: An analysis of design options and performance requirements of hot dry rock (HDR) geothermal power systems  

SciTech Connect

A generalized economic model was developed to predict the breakeven price of HDR generated electricity. Important parameters include: (1) resource quality--average geothermal gradient ({sup o}C/km) and well depth, (2) reservoir performance--effective productivity, flow impedance, and lifetime (thermal drawdown rate), (3) cost components--drilling, reservoir formation, and power plant costs and (4) economic factors--discount and interest rates, taxes, etc. Detailed cost correlations based on historical data and results of other studies are presented for drilling, stimulation, and power plant costs. Results of the generalized model are compared to the results of several published economic assessments. Critical parameters affecting economic viability are drilling costs and reservoir performance. For example, high gradient areas are attractive because shallower well depths and/or lower reservoir production rates are permissible. Under a reasonable set of assumptions regarding reservoir impedance, accessible rock volumes and surface areas, and mass flow rates (to limit thermal drawdown rates to about 10 C per year), predictions for HDR-produced electricity result in competitive breakeven prices in the range of 5 to 9 cents/kWh for resources having average gradients above 50 C/km. Lower gradient areas require improved reservoir performance and/or lower well drilling costs.

Tester, Jefferson W.; Herzog, Howard J.

1991-01-25T23:59:59.000Z

268

Economics Review 1Economics Review -1 or how you can use your money.  

E-Print Network (OSTI)

Economics Review 1Economics Review - 1 or how you can use your money. ver. 1 ME 6222: Manufacturing Processes and Systems Prof. J.S. Colton © GIT 2009 1 ver. 1 #12;Outline · Money Time al e of mone· Time value of money · Manufacturing costs ­ Direct ­ Indirect · Decision metrics ­ Rate of Return

Colton, Jonathan S.

269

Econ 126 syllabus Fall 2007 Prof. Bhattacharya Economics 126: Economics of Health and Medical Care  

E-Print Network (OSTI)

) "Economics, Values, and Health Care Reform," American Economic Review 86(1):1-24 · Arrow (1963) "Uncertainty by health economists. This class will provide an introduction to the health care system in the U.S. We will discuss some of the key concepts that health economists use to analyze health care markets. Finally, we

Ford, James

270

CER-ETH -Center of Economic Research at ETH Zurich Economics Working Paper Series  

E-Print Network (OSTI)

CER-ETH - Center of Economic Research at ETH Zurich Economics Working Paper Series Eidgenössische. Schweitzer a aChair of Systems Design, ETH Zurich, Kreuzplatz 5, CH-8032 Zurich, Switzerland b Technische Hochschule Zürich Swiss Federal Institute of Technology Zurich hal-00973077,version1-3Apr2014 #12

Paris-Sud XI, Université de

271

Economics of Private Forestry  

Science Journals Connector (OSTI)

... is consulting editor. One of the latest is a volume dealing with the economics of private forestry by Dr. Ralph W. Marquis, assistant professor of economics, University of Rochester ... elsewhere in the world with the exception of Canada. In Britain when we talk about private forestry we allude chiefly to the ...

E. P. STEBBING

1941-01-11T23:59:59.000Z

272

Water Resources Policy & Economics  

E-Print Network (OSTI)

Water Resources Policy & Economics FOR 4984 Selected Course Topics · Appropriative and riparian water institutions · Incentives for conservation · Water rights for in-stream environmental use · Surface water-groundwater management · Water quality regulations · Water markets · Economic and policy

Buehrer, R. Michael

273

STFC Economic Impact Reporting Framework 2009/10 Economic Impact  

E-Print Network (OSTI)

STFC Economic Impact Reporting Framework 2009/10 Economic Impact Reporting Framework 2009/10 #12;STFC Economic Impact Reporting Framework 2009/10 Economic Impact Reporting Framework 2009/10 #12;STFC Economic Impact Reporting Framework 2009/10 1 Contents: Introduction

274

INNOVATIONSIN ECONOMIC DEVELOPMENT The Evolving Direction of Economic  

E-Print Network (OSTI)

INNOVATIONSIN ECONOMIC DEVELOPMENT The Evolving Direction of Economic Development in the New REPORT PUBLISHED NOVEMBER, 1998 INNOVATIONSIN ECONOMIC DEVELOPMENT SUMMIT II: A SEQUEL TO THE 1992 STATE AND LOCAL ECONOMIC DEVELOPMENT STRATEGY SUMMIT The Evolving Direction of Economic Development in the New

Levinson, David M.

275

Strategy Guideline: Compact Air Distribution Systems  

SciTech Connect

This Strategy Guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. Traditional systems sized by 'rule of thumb' (i.e., 1 ton of cooling per 400 ft2 of floor space) that 'wash' the exterior walls with conditioned air from floor registers cannot provide appropriate air mixing and moisture removal in low-load homes. A compact air distribution system locates the HVAC equipment centrally with shorter ducts run to interior walls, and ceiling supply outlets throw the air toward the exterior walls along the ceiling plane; alternatively, high sidewall supply outlets throw the air toward the exterior walls. Potential drawbacks include resistance from installing contractors or code officials who are unfamiliar with compact air distribution systems, as well as a lack of availability of low-cost high sidewall or ceiling supply outlets to meet the low air volumes with good throw characteristics. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering both supply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.

Burdick, A.

2013-06-01T23:59:59.000Z

276

TransNIEMO: ECONOMIC IMPACT ANALYSIS USING A MODEL  

E-Print Network (OSTI)

TransNIEMO: ECONOMIC IMPACT ANALYSIS USING A MODEL OF CONSISTENT INTERREGIONAL ECONOMIC AND HIGHWAY of Industrial and Systems Engineering; and the School of Policy Planning and Development Qisheng Pan, Associate of Industrial and Systems Engineering JoongKoo Cho Epstein Department of Industrial and Systems Engineering

Wang, Hai

277

Economical Condensing Turbines?  

E-Print Network (OSTI)

an engineer decide when to conduct an in depth study of the economics either in the company or outside utilizing professional engineers who are experts in this type of project. Condensing steam turbines may not be economical when the fuel is purchased...Economical Condensing Turbines? by J.E.Dean, P.E. Steam turbines have long been used at utilities and in industry to generate power. There are three basic types of steam turbines: condensing, letdown 1 and extraction/condensing. ? Letdown...

Dean, J. E.

278

Economic Impact Analysis for EGS  

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

Project objective: To conduct an economic impact study for EGS and to develop a Geothermal Economics Calculator (GEC) tool to quantify (in economic terms) the potential job, energy and environmental impacts associated with electric power production from geothermal resources.

279

The Economic Impact of Binghamton  

E-Print Network (OSTI)

The Economic Impact of Binghamton University, FY2010 (July 1, 2009-June 30, 2010) Office .......................................................................................................... 2 ECONOMIC OUTPUT and Tioga counties and the overall impact of New York State in terms of economic output, jobs, and human

Suzuki, Masatsugu

280

The Economic University, FY2011  

E-Print Network (OSTI)

The Economic Impact of Binghamton University, FY2011 (July 1, 2010-June 30, 2011) Office....................................................................................................................2 ECONOMIC OUTPUT and Tioga counties) and the New York State economy in terms of economic output, jobs, and human capital

Suzuki, Masatsugu

Note: This page contains sample records for the topic "air-volume system economizer" 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

Essays on economic theory  

E-Print Network (OSTI)

These four essays concern the theory of games and its application to economic theory. The first two, closely linked, chapters are an investigation into the foundational question of the sensitivity of the predictions of ...

Weinstein, Jonathan

2005-01-01T23:59:59.000Z

282

Essays in labor economics  

E-Print Network (OSTI)

I addressed three questions in Labor Economics, using experimental and quasi-experimental variation to determine causality. In the first chapter, I ask whether playing longer in the NFL increases mortality in retirement. ...

Williams, Tyler (Tyler Kenneth)

2013-01-01T23:59:59.000Z

283

The economics of desalination  

Science Journals Connector (OSTI)

The economic development of the process of desalination depends upon its ability to produce water that is competitive on a cost basis with water from conventional sources. Energy costs can be minimized by combining the water plants with power plants ...

S. Baron

1966-12-01T23:59:59.000Z

284

Municipal Sludge disposal economics  

Science Journals Connector (OSTI)

Municipal Sludge disposal economics ... Atmospheric emissions of elements on particles from the Parkway sewage-sludge incinerator ... Atmospheric emissions of elements on particles from the Parkway sewage-sludge incinerator ...

Jerry Jones; David Bomberger, Jr.; F Lewis; Joel Jacknow

1977-01-01T23:59:59.000Z

285

Economic Impact | Jefferson Lab  

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

Jefferson Lab's Hall A Jefferson Lab generates many economic benefits for the nation and Virginia, providing many well-paying jobs for highly skilled and well-educated workers. A D...

286

Essays on development economics  

E-Print Network (OSTI)

This dissertation is a collection of three independent papers in empirical development economics. The first chapter studies the effect of a family planning program in Bangladesh, which successfully reduced fertility, on ...

Ruthbah, Ummul Hasanath

2007-01-01T23:59:59.000Z

287

Renewable Energy Economic and Financial Analysis Terms of Reference | Open  

Open Energy Info (EERE)

Renewable Energy Economic and Financial Analysis Terms of Reference Renewable Energy Economic and Financial Analysis Terms of Reference Jump to: navigation, search Tool Summary Name: Renewable Energy Economic and Financial Analysis Terms of Reference Agency/Company /Organization: World Bank Sector: Energy Focus Area: Renewable Energy Topics: Finance, Implementation, Market analysis Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/EXTRENENERGYTK/0,, References: Renewable Energy Economic and Financial Analysis Terms of Reference[1] Resources Techno-Economic Comparison of Off-grid Options -- Assessment of Household, Battery Charging and Isolated Micro-Grid Systems Economic Analysis of Solar PV Systems Component References ↑ "Renewable Energy Economic and Financial Analysis Terms of Reference" Retrieved from

288

Economic vulnerability to Peak Oil  

Science Journals Connector (OSTI)

Abstract Peak Oil, which refers to the maximum possible global oil production rate, is increasingly gaining attention in both science and policy discourses. However, little is known about how this phenomenon will impact economies, despite its apparent imminence and potential dangers. In this paper, we construct a vulnerability map of the U.S. economy, combining two approaches for analyzing economic systems, i.e. input–output analysis and social network analysis (applied to economic data). Our approach reveals the relative importance of individual economic sectors, and how vulnerable they are to oil price shocks. As such, our dual-analysis helps identify which sectors, due to their strategic position, could put the entire U.S. economy at risk from Peak Oil. For the U.S., such sectors would include Iron Mills, Fertilizer Production and Transport by Air. Our findings thus provide early warnings to downstream companies about potential ‘trouble’ in their supply chain, and inform policy action for Peak Oil. Although our analysis is embedded in a Peak Oil narrative, it is just as valid and useful in the context of developing a climate roadmap toward a low carbon economy.

Christian Kerschner; Christina Prell; Kuishuang Feng; Klaus Hubacek

2013-01-01T23:59:59.000Z

289

BA in ECONOMICS (736020) MAP Sheet Department of Economics  

E-Print Network (OSTI)

BA in ECONOMICS (736020) MAP Sheet Department of Economics For students entering the degree program from approved list from approved list Econ 110* from approved list personal choice The Economics: complete the following with a grade of C- or better: Econ 110* Economics Principles and Problems Econ 378

Olsen Jr., Dan R.

290

Gatton College of Business and Economics ECO Economics  

E-Print Network (OSTI)

Gatton College of Business and Economics ECO Economics KEY: # = new course * = course changed = course dropped University of Kentucky 2013-2014 Undergraduate Bulletin 1 ECO 101 CONTEMPORARY ECONOMIC ISSUES. (3) A basic course in the analysis of contemporary economic issues with emphasis on current

MacAdam, Keith

291

ELECTRICITY CASE: ECONOMIC COST ESTIMATION FACTORS FOR ECONOMIC  

E-Print Network (OSTI)

ELECTRICITY CASE: ECONOMIC COST ESTIMATION FACTORS FOR ECONOMIC ASSESSMENT OF TERRORIST ATTACKS Zimmerman, R. CREATE REPORT Under FEMA Grant EMW-2004-GR-0112 May 31, 2005 Center for Risk and Economic #12;2 Abstract The major economic effects of electric power outages are usually associated with three

Wang, Hai

292

BS in ECONOMICS (736021) MAP Sheet Department of Economics  

E-Print Network (OSTI)

BS in ECONOMICS (736021) MAP Sheet Department of Economics For students entering the degree program approved list from approved list Econ 110* from approved list personal choice The Economics Department the following with a grade of C- or better: Econ 110* Economics Principles and Problems Econ 378 Statistics

Olsen Jr., Dan R.

293

BA in ECONOMICS (736020) MAP Sheet Department of Economics  

E-Print Network (OSTI)

BA in ECONOMICS (736020) MAP Sheet Department of Economics For students entering the degree program The Economics Department requires a minimum of 21 hours in the major to be taken in residency at BYU courses: complete the following with a grade of C- or better: Econ 110* Economics Principles and Problems

Olsen Jr., Dan R.

294

BS in ECONOMICS (736021) MAP Sheet Department of Economics  

E-Print Network (OSTI)

BS in ECONOMICS (736021) MAP Sheet Department of Economics For students entering the degree program The Economics Department requires a minimum of 21 hours in the major to be taken in residency at BYU courses: complete the following with a grade of C- or better: Econ 110* Economics Principles and Problems

Olsen Jr., Dan R.

295

IEAB Independent Economic Analysis Board  

E-Print Network (OSTI)

should use as a tool to evaluate as part of the planning process. Economic, political, socialIEAB Independent Economic Analysis Board Daniel D. Huppert, Chair Lon L. Peters, Vice-Chair Joel R and Guidance for Economic Analysis in Subbasin Planning Independent Economic Analysis Board January 2003

296

Economics of Peak Oil  

Science Journals Connector (OSTI)

Abstract ‘Peak oil’ refers to the future decline in world production of crude oil and the accompanying potentially calamitous effects. The peak oil literature typically rejects economic analysis. This article argues that economic analysis is indeed appropriate for analyzing oil scarcity because standard economic models can replicate the observed peaks in oil production. Moreover, the emphasis on peak oil is misplaced as peaking is not a good indicator of scarcity, peak oil techniques are overly simplistic, the catastrophes predicted by the peak oil literature are unlikely, and the literature does not contribute to correcting identified market failures. Efficiency of oil markets could be improved by instead focusing on remedying market failures such as excessive private discount rates, environmental externalities, market power, insufficient innovation incentives, incomplete futures markets, and insecure property rights.

S.P. Holland

2013-01-01T23:59:59.000Z

297

Power Economic Analysis  

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

CRSP Management Center CRSP Management Center Western Area Power Administration January 2011 Power Economic Analysis of Operational Restrictions at Glen Canyon Dam In February, 1997, the operating criteria for Glen Canyon Dam were changed. Operation was restricted to a Modified Low Fluctuating Flow as described in the Operation of Glen Canyon Dam, Colorado River Storage Project, Arizona, Final Environmental Impact Statement, March, 1995. These restrictions reduced the operating flexibility of the hydroelectric power plant and therefore the economic value of the electricity it produced. The Environmental Impact Statement provided impact information to support the Record of Decision governing dam operations. The impact

298

Performance simulations of twin-screw compressors with economizer  

Science Journals Connector (OSTI)

In a compressor refrigeration plant with an economizer system, the regular expansion valve is replaced by two valves and an intermediate pressure vessel. The refrigerant which is vaporized after the first valve is injected via the compressor economizer inlet to a thread under compression. The economizer arrangement increases the refrigeration capacity and improves the coefficient of performance (COP). In this paper a performance simulation computer program for twin-screw compressors with an economizer arrangement is presented. Comparisons of economizer performance for different arrangements are often difficult to carry out if real tests have not been run, as the performance is dependent on the intermediate pressure and this pressure is not the same for different arrangements. Such comparisons can be made with the simulation program. Examples are presented for an economizer arrangement combined with external liquid subcooling and for a two-stage economizer arrangement.

Sven Jonsson

1991-01-01T23:59:59.000Z

299

An economic and technical assessment of black-dross and salt-cake-recycling systems for application in the secondary aluminum industry  

SciTech Connect

The secondary aluminum industry annually disposes of large amounts of dross residues and salt cake, which are by-products from the processing of scrap aluminum for reuse. These wastes contain as much as 50% salts and are presently disposed of in conventional landfills. As the costs of landfill space increase and the availability of landfill space decreases, disposal of the residues will increasingly compromise the economics of recycling aluminum. Alternative processes exist by which the major constituents of the various drosses and salt cakes can be recovered for recycling. In this study, we review available recycling technologies and processes relevant to the recycling of black dross and salt cake and discuss new concepts that have the potential to improve the cost-effectiveness of recycling technologies.

Karvelas, D.; Daniels, E.; Jody, B.; Bonsignore, P.

1991-12-01T23:59:59.000Z

300

Understanding Regional Economic Growth in IndiaUnderstanding Regional Economic Growth in India Understanding Regional Economic  

E-Print Network (OSTI)

Understanding Regional Economic Growth in IndiaUnderstanding Regional Economic Growth in India Understanding Regional Economic Growth in India* Jeffrey D. Sachs Director The Earth Institute at Columbia_ramiah@yahoo.co.uk Asian Economic Papers 1:3 © 2002 The Earth Institute at Columbia University and the Massachusetts

Note: This page contains sample records for the topic "air-volume system economizer" 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

Jobs Creation Economic Recovery  

E-Print Network (OSTI)

Commission (Energy Commission) collects the American Recovery and Reinvestment Act of 2009 (ARRA) jobs creation and retention data (jobs data) from its subrecipients through the Energy Commission's ARRAJobs Creation and Economic Recovery Prompt, Fair, and Reasonable Use of ARRA Funds Subrecipient

302

Conservation IEAB Independent Economic  

E-Print Network (OSTI)

Interactions Between the Fish and Wildlife Program andand Wildlife Program and the Sixth Power Plan (Phase 1)the Sixth and the Fish and Wildlife ProgramProgram #12;Northwest Power and Conservation Council IEAB Independent Economic integration of wind and solar generationImpacts from integration of wind and solar generation Impacts from

303

Energy Performance and Economic Evaluations of the Geothermal Heat Pump System used in the KnowledgeWorks I and II Buildings, Blacksburg, Virginia.  

E-Print Network (OSTI)

??Heating, Ventilating and Air Conditioning Systems (HVAC) are not only one of the most energy consuming components in buildings but also contribute to green house… (more)

Charoenvisal, Kongkun

2008-01-01T23:59:59.000Z

304

Energy performance of air distribution systems part II: room air stratification full scale testing  

E-Print Network (OSTI)

and are connected to a fan coil unit by flexible ductwork asvariable air volume fan coil units typically used in

Webster, Tom; Lukaschek, Wolfgang; Dickeroff, Darryl; Bauman, Fred

2007-01-01T23:59:59.000Z

305

Economic Benefit of Land Conservation in Protecting  

E-Print Network (OSTI)

by plants instead of traveling into the water system #12;Water Storage on Conservation Lands · Upland areas.9 billion · In terms of water quality and groundwater purification, returns of $13.2 billion estimated #12Economic Benefit of Land Conservation in Protecting Water Resources November 2, 2011 Presented by

Demers, Nora Egan

306

Techno-economics of Renewables Rangan Banerjee  

E-Print Network (OSTI)

cost 0.5c/kWh Load factors around 20% #12;Ocean Thermal Energy Conversion (OTEC) Temperature gradientsTechno-economics of Renewables Rangan Banerjee Energy Systems Engineering IIT Bombay Talk delivered at MIT Pune on 20th March 2005 #12;India- Primary Commercial Energy Hydro 3% Nuclear 1% Oil Import 20

Banerjee, Rangan

307

Economic Impact & Diversity  

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

ECONOMIC IMPACT AND DIVERSITY ECONOMIC IMPACT AND DIVERSITY FOURTH QUARTER STATUS (As of August 10, 2006) Executive Summary: ED is responsible for managing the department's on-going small business programs, Affirmative Action programs, Employee Concerns program, EEO programs, and the Department's Minority Education program. ED serves as the support office for department-wide efforts to broaden and/or diversify the Department's base as it relates to employment, contracting and financial assistance awards. Where we are today: ED finalized the reorganization/restructuring process which reduced the offices within ED from five to three. Along with this process, ED moved the Employee Concerns and Special Emphasis activities and personnel to the Office of Civil Rights and Diversity

308

Economic Partnership, IDB ink deal  

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

18 May 2010 00:00 Economic Partnership, IDB ink deal The Oak Ridge Industrial Development Board (IDB) signed an agreement with the Oak Ridge Economic Partnership on Friday hiring...

309

Refund for Economic Development (Texas)  

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

The Refund for Economic Development under the Tax Code for state tax refunds for economic development. Some Texas property owners may be eligible to receive refunds of state sales and use taxes and...

310

Photovoltaics Economic Calculator (United States) | Open Energy Information  

Open Energy Info (EERE)

Photovoltaics Economic Calculator (United States) Photovoltaics Economic Calculator (United States) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Photovoltaics Economic Calculator (United States) Focus Area: Solar Topics: System & Application Design Website: instance.celadonapps.com/insolation/insolation.html Equivalent URI: cleanenergysolutions.org/content/photovoltaics-economic-calculator-uni Web-based tool that allows users to describe their solar system in detail and provides a detailed breakdown of power production and system economics. It uses the TMY2 solar data from the United States National Renewable Energy Laboratory's Renewable Resource Data Center. This model is appropriate for U.S.-based users, but it could also serve as an adaptable model example for other countries. References

311

Economic Passive Solar Warm-Air Heating and Ventilating System Combined with Short Term Storage within Building Components for Residential Houses  

Science Journals Connector (OSTI)

Warm-air heating systems are very suitable for the exploitation of solar energy. A relatively low temperature level combined ... used for transportation and distribution equipment or as storage elements.

K. Bertsch; E. Boy; K.-D. Schall

1984-01-01T23:59:59.000Z

312

The Technical and Economical Analysis of a Centralized Air-Conditioning System with Cold Storage Refrigeration in High-Rise Residential Buildings  

E-Print Network (OSTI)

In recent years, the application of a centralized air-conditioning system (CACS) with cold storage refrigeration in high-rise residential buildings has gradually increased. Due to the large difference between civil residential buildings...

Xiang, C.; Xie, G.

2006-01-01T23:59:59.000Z

313

IEAB Independent Economic Analysis Board  

E-Print Network (OSTI)

and Estuary (Buoy 10) Figure 7: The Fisheries Economic Assessment Model Process Figure 8: Columbia RiverIEAB Independent Economic Analysis Board Roger Mann, Chair Noelwah R. Netusil, Vice-Chair Kenneth L. Casavant Daniel D. Huppert Joel R. Hamilton Lon L. Peters Susan S. Hanna Hans Radtke A I - 1 Economic

314

Economic Sustainability and Ecological Compatibility  

E-Print Network (OSTI)

Economic Sustainability and Ecological Compatibility: Where is the room to move? October 21st - 22: Economic Sustainability and Ecological Compatibility: Where is the room to move? October 21st - 22nd , 2010, Economic Sustainability: Room to Move? Workshop Hosted by Colorado Forest Restoration Institute Walden

315

Philosophy & Economics "Made in Germany"  

E-Print Network (OSTI)

Philosophy & Economics "Made in Germany" The Bachelor and Master Programmes at a Glance 2011 #12 course of studies in philosophy and economics. The aim is to provide a rigorous training for understanding complex social, economic, and political decision-making. · The philosophy curriculum is focused

Müller, Cord

316

Economic Man'' Dominate Social Behavior?  

E-Print Network (OSTI)

When Does `` Economic Man'' Dominate Social Behavior? Colin F. Camerer1 * and Ernst Fehr2,3 The canonical model in economics considers people to be rational and self-regarding. However, much evidence challenges this view, raising the question of when `` Economic Man'' dominates the outcome of social

Greer, Julia R.

317

The Economic State of Milwaukee's  

E-Print Network (OSTI)

The Economic State of Milwaukee's Inner City: 2006 A report prepared by The University of Wisconsin-Milwaukee Center for Economic Development May 2006 #12;About this Report This report was produced at the University of Wisconsin-Milwaukee Center for Economic Development (UWMCED), a unit of the College of Letters and Science

Saldin, Dilano

318

IAEA Planning and Economic Studies Section (PESS) Capacity Building | Open  

Open Energy Info (EERE)

IAEA Planning and Economic Studies Section (PESS) Capacity Building IAEA Planning and Economic Studies Section (PESS) Capacity Building Jump to: navigation, search Tool Summary Name: IAEA Planning and Economic Studies Section (PESS) Capacity Building Agency/Company /Organization: International Atomic Energy Agency Sector: Energy Focus Area: Non-renewable Energy, Energy Efficiency, Renewable Energy Topics: Pathways analysis Resource Type: Software/modeling tools, Training materials References: IAEA PESS capacity building[1] Logo: IAEA Planning and Economic Studies Section (PESS) Capacity Building "PESS offers assistance to Member States, particularly from developing regions, to improve their energy system analysis & planning capabilities. Assistance can include: transferring modern planning methods, tools and databanks

319

Community Development Block Grant/Economic Development Infrastructure  

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

Community Development Block Grant/Economic Development Community Development Block Grant/Economic Development Infrastructure Financing (CDBG/EDIF) (Oklahoma) Community Development Block Grant/Economic Development Infrastructure Financing (CDBG/EDIF) (Oklahoma) < Back Eligibility Utility Commercial Agricultural Investor-Owned Utility Industrial Construction Municipal/Public Utility Local Government Installer/Contractor Rural Electric Cooperative Tribal Government Retail Supplier Systems Integrator Fuel Distributor Nonprofit Transportation Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info Program Type Grant Program Loan Program Community Development Block Grant/Economic Development Infrastructure Financing (CDBG/EDIF) provides public infrastructure financing to help

320

Economic Development Fund (New York) | Department of Energy  

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

Economic Development Fund (New York) Economic Development Fund (New York) Economic Development Fund (New York) < Back Eligibility Agricultural Commercial Construction Fuel Distributor Industrial Installer/Contractor Institutional Investor-Owned Utility Municipal/Public Utility Nonprofit Retail Supplier Rural Electric Cooperative Schools Systems Integrator Transportation Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State New York Program Type Loan Program Provider Empire State Development Empire State Development operates the Economic Development Fund, which offers financial assistance to businesses that create or retain business activity and jobs. The program can provide financing and a range of

Note: This page contains sample records for the topic "air-volume system economizer" 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

Energy Economic Zone Pilot Program (Florida) | Department of Energy  

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

Energy Economic Zone Pilot Program (Florida) Energy Economic Zone Pilot Program (Florida) Energy Economic Zone Pilot Program (Florida) < 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 Program Info State Florida Program Type Enterprise Zone Provider Florida Department of Economic Opportunity In the 2009 Legislative Session, the Florida Legislature established the

322

Emotions in economic action and interaction  

E-Print Network (OSTI)

actors during the economic process where emotional currentsthat influence economic processes, including networks,to the analyses of economic processes. The most prominent

Bandelj, Nina

2009-01-01T23:59:59.000Z

323

Evaluating Economizer Use In Data Centers  

E-Print Network (OSTI)

Evaluating Economizer Use in Data Centers Benjamin Chu“,eelet Keywords: Data centers, economizers, HVAC, indoor airfor data centers are economizers, which turn off the power

Chu, Benjamin

2009-01-01T23:59:59.000Z

324

Data Center Economizer Contamination and Humidity Study  

E-Print Network (OSTI)

Program Data Center Economizer Contamination and Humiditylevels for computers. Air economizer cycles, which bring insites to determine how economizers affect humidity control.

Shehabi, Arman

2010-01-01T23:59:59.000Z

325

Economic transformation capacities and developmental countermeasures of coal-resource-based counties of China  

Science Journals Connector (OSTI)

In China, the economic systems of many small-scale resource-based ... regions are confronted with realizing sustainable development through economic transformation. This paper, taking 37 coal-resource-based count...

Shijun Wang; Lili Jiang

2010-04-01T23:59:59.000Z

326

United Nations Economic and Social Council | Open Energy Information  

Open Energy Info (EERE)

Council Council Jump to: navigation, search Name United Nations Economic and Social Council Website http://www.un.org/en/ecosoc/in References United Nations Economic and Social Council[1] LinkedIn Connections Background "ECOSOC was established under the United Nations Charter as the principal organ to coordinate economic, social, and related work of the 14 UN specialized agencies, functional commissions and five regional commissions. The Council also receives reports from 11 UN funds and programmes. The Economic and Social Council (ECOSOC) serves as the central forum for discussing international economic and social issues, and for formulating policy recommendations addressed to Member States and the United Nations system. It is responsible for: promoting higher standards of living, full employment, and economic

327

Economical quantum cloning in any dimension  

E-Print Network (OSTI)

The possibility of cloning a d-dimensional quantum system without an ancilla is explored, extending on the economical phase-covariant cloning machine found in [Phys. Rev. A {\\bf 60}, 2764 (1999)] for qubits. We prove the impossibility of constructing an economical version of the optimal universal cloning machine in any dimension. We also show, using an ansatz on the generic form of cloning machines, that the d-dimensional phase-covariant cloner, which optimally clones all uniform superpositions, can be realized economically only in dimension d=2. The used ansatz is supported by numerical evidence up to d=7. An economical phase-covariant cloner can nevertheless be constructed for d>2, albeit with a lower fidelity than that of the optimal cloner requiring an ancilla. Finally, using again an ansatz on cloning machines, we show that an economical version of the Fourier-covariant cloner, which optimally clones the computational basis and its Fourier transform, is also possible only in dimension d=2.

Thomas Durt; Jaromir Fiurasek; Nicolas J. Cerf

2004-12-26T23:59:59.000Z

328

UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into the implementation of a solid waste accounting system in the new  

E-Print Network (OSTI)

. The ideal step in the process to implement such an accounting system was at the point of storage before to physically lift the Schaefer bins to empty them, mitigating the risk of back injuries or other lifting-associated injuries. Finally, each the dumpster and the compactor would be sitting on four weigh scales, one beneath

329

Energy and Society (ER100/PP184/ER200/PP284) Fall 2014 Topics: Thermodynamics of energy systems; Power Loss; Peak Oil; Energy economics. Problem Set #3  

E-Print Network (OSTI)

's campus features a combined heat and power (CHP) energy system. This power (electricity) stationCourse), Student ID, Course # (ER100 etc), Discussion Section (101-110) Combined-Cycle Power Plant 1. UC Berkeley is a combined-cycle: a 21.35 MW natural gas turbine (Brayton cycle) and a 5.0 MW steam- powered, bottoming

Kammen, Daniel M.

330

Texas Tech University is poised to take a leadership role in the development of wind power systems through research, economic development, job creation and education.  

E-Print Network (OSTI)

that will deal with offshore wind turbines in the Gulf of Mexico. "We have the offshore oil expertise here for testing, characterization and improvement of wind turbines and wind-driven water desalination systems and feed that high fidelity wind data in real time into an advanced wind turbine computer model

Gelfond, Michael

331

Financial Engineering Proposal Department of Agricultural Economics  

E-Print Network (OSTI)

Financial Engineering Proposal Department of Agricultural Economics and Economics and Department engineering is a multidisciplinary field that emphasizes the engineering of new financial economic instruments the Department of Mechanical and Industrial Engineering and the Department of Agricultural Economics

Lawrence, Rick L.

332

ECONOMIC IMPACT OF THE APPALACHIAN GATEWAY  

E-Print Network (OSTI)

ECONOMIC IMPACT OF THE APPALACHIAN GATEWAY PROJECT By Randall A. Childs Bureau of Business and Economic Research College of Business and Economics West Virginia University United States where demand is strong. This report documents the economic impact of the Appalachian

Mohaghegh, Shahab

333

Economic Impact of the Florida Apiculture Industry  

E-Print Network (OSTI)

1 Economic Impact of the Florida Apiculture Industry Economics Report 01-1 By Alan Hodges, David and Agricultural Sciences Department of Food & Resource Economics Department of Entomology/ Nematology Gainesville .......................................................................................................................................12 Economic Impact Analysis

Florida, University of

334

The Value of Economic Reality: Applying Economic Value Added.  

E-Print Network (OSTI)

??The concept of Economic Value Added (EVA) is a revolutionary way to measure the value of a business. In its simplest form, EVA is a… (more)

Phillips, David M

2007-01-01T23:59:59.000Z

335

NREL: Jobs and Economic Development Impact (JEDI) Models - Publication...  

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

"Defining a Standard Measure for Whole System EROI Combining Economic "Top-Down" and LCA "Bottom-Up" Accounting." In Proceedings of the ASME 2010 4th International Conference...

336

Optimizing Electric Humidifier Operation with an Air Side Economizer  

E-Print Network (OSTI)

Air side economizer cycle is a control scheme that is often used in WAC systems to reduce cooling energy consumption by introducing variable quantities of ambient air into a conditioned space to satisfy the space cooling load (free cooling...

Shami, U. F.

1996-01-01T23:59:59.000Z

337

CO? emissions limits: economic adjustments and the distribution of burdens  

E-Print Network (OSTI)

Policies under consideration within the Climate Convention would impose CO? controls on only a subset of nations. A model of economic growth and emissions, coupled to an analysis of the climate system, is used to explore ...

Jacoby, Henry D.; Eckaus, Richard S.; Ellerman, A. Denny.; Prinn, Ronald G.; Reiner, David M.; Yang, Zili.

338

Economics of dual purpose production alternatives in the Mexican tropics  

E-Print Network (OSTI)

Technological, marketing, and financial alternatives to the dual purpose production system in Central Veracruz, Mexico were analyzed to assess their economic viability. A large dual purpose production operation was characterized in a baseline...

Ochoa-Ochoa, Rene Federico

1997-01-01T23:59:59.000Z

339

Techno-economic assessment of substituting natural gas based heater with thermal energy storage system in parabolic trough concentrated solar power plant  

Science Journals Connector (OSTI)

Abstract Parabolic-trough (PT) concentrated solar power (CSP) plants are very vulnerable to daily fluctuations in solar radiation. This dependence can be mitigated through a hybridization of solar energy with natural gas based heaters that supply thermal energy during the night or whenever solar irradiance level is dimmed. However, there is more sustainable way for CSP plants to avoid power-generation-outages caused by transient weather conditions, i.e. installation of thermal energy storage (TES). Such a system stores surplus thermal energy provided by solar field during sunny hours and discharges it when the sun is not available. Shams-1 PT plant in Madinat-Zayed, United-Arab-Emirates (UAE) has two natural gas based components, i.e. steam-booster heater and heat transfer fluid (HTF) heater. In the current study, model of Shams-1 was developed and analyzed in the System Advisor Model (SAM) software. It has been attempted to replace the HTF heater with TES. A parametric study has been conducted to determine the size of the TES as well as the solar field such that the specified power target demand would be satisfied. The results of the parametric analysis showed that TES can't completely replace the HTF heater, within reasonable sizes. Nevertheless, consequent simulations depicts that TES increases the capacity factor on one hand and decreases fuel consumption on the other hand.

V. Poghosyan; Mohamed I. Hassan

2015-01-01T23:59:59.000Z

340

Integration of biomass into urban energy systems for heat and power. Part II: Sensitivity assessment of main techno-economic factors  

Science Journals Connector (OSTI)

Abstract The paper presents the application of a mixed integer linear programming (MILP) methodology to optimize multi-biomass and natural gas supply chain strategic design for heat and power generation in urban areas. The focus is on spatial and temporal allocation of biomass supply, storage, processing, transport and energy conversion (heat and CHP) to match the heat demand of residential end users. The main aim lies on the assessment of the trade-offs between centralized district heating plants and local heat generation systems, and on the decoupling of the biomass processing and biofuel energy conversion steps. After a brief description of the methodology, which is presented in detail in Part I of the research, an application to a generic urban area is proposed. Moreover, the influence of energy demand typologies (urban areas energy density, heat consumption patterns, buildings energy efficiency levels, baseline energy costs and available infrastructures) and specific constraints of urban areas (transport logistics, air emission levels, space availability) on the selection of optimal bioenergy pathways for heat and power is assessed, by means of sensitivity analysis. On the basis of these results, broad considerations about the key factors influencing the use of bioenergy into urban energy systems are proposed. Potential further applications of this model are also described, together with main barriers for development of bioenergy routes for urban areas.

Antonio M. Pantaleo; Sara Giarola; Ausilio Bauen; Nilay Shah

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

Economic Considerations of Nuclear Desalination in Korea  

SciTech Connect

The objective of this study is to assess the economics of SMART (System-integrated Modular Advanced Reactor) desalination plant in Korea through DEEP (Devaluation Economic Evaluation Program). SMART is mainly designed for the dual purpose of producing water and electricity with the total capacity of 100 MWe which 10 MWe is used for water production and the remains for the electric generation. SMART desalination plant using MED (Multi-Effect Distillation) process is in the stage of the commercial development and its cost information is also being accumulated. In this circumstances, the economic assessment of nuclear desalination by SMART and the effect of water(or electric) supply price to the regional economy is meaningful to the policy maker. This study is focused on the case study analysis about the economics of SMART desalination plant and the meanings of the case study result. This study is composed of two parts. One is prepared to survey the methodology regarding cost allocation between electricity and water in DEEP and the other is for the economic assessment of SMART. The cost allocation methods that have been proposed or used can be classified into two main groups, one is the cost prorating method and the other is the credit method. The cost of an product item in the dual-purpose plant can be determined differently depending on the costing methods adopted. When it comes to applying credit method adopted in this thesis, the production cost of water depends on what kind of the power cost will be chosen in calculating the power credit. This study also analyses the changes of nuclear desalination economics according to the changes of the important factors such as fossil fuel price. I wish that this study can afford to give an insight to the policy maker about SMART desalination plant. (authors)

Man-Ki, Lee; Seung-Su, Kim [Korea Atomic Energy Research Institute, 150, Deok-jin dong, Yu-seong gu, Dae-jeon city (Korea, Republic of)

2006-07-01T23:59:59.000Z

342

Performance of thermal distribution systems in large commercial buildings  

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

Performance of thermal distribution systems in large commercial buildings Performance of thermal distribution systems in large commercial buildings Title Performance of thermal distribution systems in large commercial buildings Publication Type Journal Article LBNL Report Number LBNL-44331 Year of Publication 2002 Authors Xu, Tengfang T., François Rémi Carrié, Darryl J. Dickerhoff, William J. Fisk, Jennifer A. McWilliams, Duo Wang, and Mark P. Modera Journal Energy and Buildings Volume 34 Start Page Chapter Pagination 215-226 Abstract This paper presents major findings of a field study on the performance of five thermal distribution systems in four large commercial buildings. The five systems studied are typical single-duct or dual-duct constant air volume (CAV) systems and variable air volume (VAV) systems, each of which serves an office building or a retail building with floor area over 2,000 m2. The air leakage from ducts are reported in terms of effective leakage area (ELA) at 25 Pa reference pressure, the ASHRAE-defined duct leakage class, and air leakage ratios. The specific ELAs ranged from 0.7 to 12.9 cm2 per m2 of duct surface area, and from 0.1 to 7.7 cm2 per square meter of floor area served. The leakage classes ranged from 34 to 757 for the five systems and systems sections tested. The air leakage ratios are estimated to be up to one-third of the fan- supplied airflow in the constant-air-volume systems. The specific ELAs and leakage classes indicate that air leakage in large commercial duct systems varies significantly from system to system, and from system section to system section even within the same thermal distribution system. The duct systems measured are much leakier than the ductwork specified as "unsealed ducts" by ASHRAE. Energy losses from supply ducts by conduction (including convection and radiation) are found to be significant, on the scale similar to the losses induced by air leakage in the duct systems. The energy losses induced by leakage and conduction suggest that there are significant energy-savings potentials from duct-sealing and insulation practice in large commercial buildings

343

ECONOMIC REPORT OF THE PRESIDENT  

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

ECONOMIC REPORT ECONOMIC REPORT OF THE PRESIDENT Economic Report of the President | 3 ECONOMIC REPORT OF THE PRESIDENT To the Congress of the United States: Over the past 6 years of economic expansion, the American economy has proven its strength and resilience. Job creation grew uninterrupted for a record period of time, inflation remains moderate, unemployment is low, and productivity continues to grow. The economy is built upon a strong foundation, with deep and sophisticated capital markets, flexible labor markets, low taxes, and open trade and investment policies. Americans should be confident about the long-term strength of our economy, but our economy is undergoing a period of uncertainty, and there are heightened risks to our near-term economic growth. To insure against

344

Economic analysis of amine based carbon dioxide capture system with bi-pressure stripper in supercritical coal-fired power plant  

Science Journals Connector (OSTI)

Post-combustion CO2 capture and storage is among the most mature technologies to capture, compress, transport and store CO2 from flue gas in coal-fired power plant. This paper presents the simulation of monoethanolamine (MEA) based CO2 capture and compression process integrated within a 600 MWe supercritical coal-fired power plant using chemical process simulators. Comparison between bi-pressure stripper and single-pressure stripper reveals that improved CO2 capture system with bi-pressure stripper minimizes energy penalty of CO2 capture and compression by up to 6.3% at full unit load. The study also explores optimization of some important process parameters affecting the performance of coal-fired power plant by taking into account both CO2 capture process and CO2 compression at full unit load. These parameters include operating stripper pressure, CO2 capture efficiency and steam extraction location. Results show that the optimal stripper pressure is within the range of 1.9–2.1 bar and feasible CO2 capture efficiency is between 60% and 90%. Results also show that low-pressure steam extraction reduces energy penalty. Evaluation of improved CO2 capture system is also performed at part flue gas load ranging from 40% to 90%. The study reveals that operating at part flue gas load, as compared with full load, increases energy penalty of carbon capture. Not only energy penalty but also lean solution flow rate and plant efficiency are studied at different flue load levels in this paper. In addition, results show that bi-pressure stripper configuration is also effective in reducing energy penalty at part unit load.

Haiwen Liang; Zhigao Xu; Fengqi Si

2011-01-01T23:59:59.000Z

345

MTBE Production Economics  

Gasoline and Diesel Fuel Update (EIA)

MTBE Production MTBE Production Economics Tancred C. M. Lidderdale Contents 1. Summary 2. MTBE Production Costs 3. Relationship between price of MTBE and Reformulated Gasoline 4. Influence of Natural Gas Prices on the Gasoline Market 5. Regression Results 6. Data Sources 7. End Notes 1. Summary Last year the price of MTBE (methyl tertiary butyl ether) increased dramatically on two occasions (Figure 1) (see Data Sources at end of article.): 1. Between April and June 2000, the price (U.S. Gulf Coast waterborne market) of MTBE rose from $1.00 per gallon to over $1.60 per gallon. This represented an increase in the price premium for MTBE over the wholesale price of conventional gasoline from its normal (1995 though 2000 average) $0.26 per gallon to $0.60 per gallon. The MTBE

346

PNNL: Economic Development Office  

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

Events Calendar Events Calendar left arrow January 2014 right arrow Su Mo Tu We Th Fr Sa 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 Scheduled events for January 4, 2014 Calendar contains no events. Past Events 2013 September 20, 2013 - Startup Weekend Tri-Cities January 29, 2013 - PTAC Class: Developing Your Capability Statement January 24, 2013 - Economic Outlook Summit January 23, 2013 - Women in Business Conference January 10, 2013 - Venture Investment and Partnering Forum January 07, 2013 - New Routes for U.S.-Japan Collaboration / Ambassadorial Outreach Tour 2012 November 29, 2012 - Innovation Summit October 18, 2012 - Funding for Startups from the National Cancer Institute October 11, 2012 - Career Fair October 09, 2012 - Understanding Government Contracting Solicitations

347

Economic Recovery Loan Program (Maine)  

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

The Economic Recovery Loan Program provides subordinate financing to help businesses remain viable and improve productivity. Eligibility criteria are based on ability to repay, and the loan is...

348

Technology-Based Economic Development  

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

Technology-Based Economic Development Idaho National Laboratory (INL), on behalf of corporate funds provided by Battelle Energy Alliance, funds philanthropic projects aimed at...

349

Economic Development Project Districts (Indiana)  

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

Redevelopment commissions may petition legislative bodies to designate economic development project districts in cities with populations between 80,500 and 500,000. Such districts may be...

350

Cogeneration Economics for Process Plants  

E-Print Network (OSTI)

This paper presents the incentives for cogeneration, describing pertinent legislation and qualification requirements for cogeneration benefits, and indicates the performance and economic characteristics of combined cycle cogeneration applications...

Ahner, D. J.

351

Boiler Stack Economizer Tube Failure  

Science Journals Connector (OSTI)

A metallurgical evaluation was performed to investigate the failure of a type 304 stainless steel tube from a boiler stack economizer. The tube had three distinct degradation mechanisms...

Ryan J. Haase; Larry D. Hanke

2013-10-01T23:59:59.000Z

352

production presents economic challenges to agroforestry. While not wishing to understate the economic challenges of  

E-Print Network (OSTI)

production presents economic challenges to agroforestry. While not wishing to understate in the system espoused by Struebig et al. of intensive production directly abutting HCV areas. We recognise. Indonesia. Hum. Ecol. 35, 427­438 4 Therville, C. (2008) Dynamics of Rubber Agroforest Conversion in Bungo

Barnosky, Anthony D.

353

Economics Seminar, Indian Statistical Institute, New Delhi. SPEAKER: Deepti Goel, Delhi School of Economics  

E-Print Network (OSTI)

to the Delhi Metro. Given, documented evidence on the adverse health effects of air pollution, our findings of Economics TITLE: The effect of metro rail on air pollution in Delhi. TIME: 11:30 AM ­ 01:00 PM. DAY & DATE of the Delhi Metro, an intra-city mass rail transit system, on air pollution within Delhi. To identify effects

Bandyopadhyay, Antar

354

Economical standard quantum process tomography  

E-Print Network (OSTI)

Recently, Bendersky \\emph{et al.} developed a method to complete the task of characterizing an arbitrary $\\chi$ matrix element in a scalable way, Phys. Rev. Lett. Vol. \\textbf{100}, 190403(2008), where an auxiliary system was needed. In present work, we shall show that the same task can also be completed within the scheme of standard quantum process tomography (SQPT) where there is no requirement for ancilla. Our method depends on two observations: With the elaborately chosen operators basis, the SQPT may have an economical form where a single run of experiment, in which we measure the expectation value of a chosen operator in the outport of the quantum channel with a known input, is sufficient to characterize a selected $\\chi$ matrix element; With the progress recently achieved in quantum entanglement detection, we also find that the number of the experimental settings to realize the experiment for the selected $\\chi$ matrix element does not exceed 2N for the N-qubits system. For practice, our scheme can be applied for the cases where the controlled two-body interaction is neither available nor desirable.

Xiaohua Wu; Ke Xu

2010-11-30T23:59:59.000Z

355

DEPARTMENT OF ECONOMICS COLLEGE OF BUSINESS AND ECONOMICS  

E-Print Network (OSTI)

of Economics College of Business and Economics University of Canterbury Private Bag 4800, Christchurch New is substitutable with both capital and labour. Coal is significantly substitutable with electricity and complementary with diesel while gasoline and electricity are substitutable with diesel. China's energy intensity

Hickman, Mark

356

DEPARTMENT OF ECONOMICS AND FINANCE COLLEGE OF BUSINESS AND ECONOMICS  

E-Print Network (OSTI)

Zealand Electricity Market Lewis Evans and Graeme Guthrie WORKING PAPER No. 10/2011 Department of Economics and Finance College of Business and Economics University of Canterbury Private Bag 4800 to the New Zealand Electricity Market Lewis Evans New Zealand Institute for the Study of Competition

Hickman, Mark

357

ForReview.Confidential-ACS Plantwide Control to Economic Optimum of a Recycle  

E-Print Network (OSTI)

ForReview.Confidential-ACS Plantwide Control to Economic Optimum of a Recycle Process with Side #12;ForReview.Confidential-ACS Plantwide Control to Economic Optimum of a Recycle Process with Side, Trondheim N7491, Norway Abstract Plantwide control system design for economically optimum operation

Skogestad, Sigurd

358

Economic Plantwide Control Over a Wide Throughput Range: A Systematic Design Procedure  

E-Print Network (OSTI)

systems for safe, stable, and economic process operation of complex chemical processes with material for integrated chemical processes.3 In their procedure, economic concerns are addressed indirectly in the form of requiring "tight" control of expected economic variables such as product impurity and process yield

Skogestad, Sigurd

359

Space, Health and Population Economics  

E-Print Network (OSTI)

Space, Health SHaPE and Population Economics Changing Demographics and Immigration: Implications for IndianaImplications for Indiana Brigitte Waldorf, Purdue University Farm Policy Study Group b 20 07 December 2010 #12;Space, Health SHaPE and Population Economics America is ... ... Aging #12;Space, Health

360

Philosophy & Economics "Made in Germany"  

E-Print Network (OSTI)

Philosophy & Economics "Made in Germany" 10 Argumente für das Bachelor-Studiengang Philosophy & Economics 2011 www.pe.uni-bayreuth.de #12;1. P&E verbindet Philosophie und �konomie, um Exper- tinnen und Zentrum steht die Verzahnung von philosophi- scher und ökonomischer Perspektive. 8. P&E bereitet für

Müller, Cord

Note: This page contains sample records for the topic "air-volume system economizer" 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

CCPExecutiveSummary An Economic  

E-Print Network (OSTI)

CCPExecutiveSummary September 2008 An Economic Assessment of EC Merger Control W: www.ccp.uea.ac.uk T: +44 (0)1603 593715 A: UEA, Norwich, NR4 7TJ An Economic Assessment of EC Merger Control: 1958 dampen the competitive process, by reducing the number of effective competitors, softening competition

Feigon, Brooke

362

IEAB Independent Economic Analysis Board  

E-Print Network (OSTI)

IEAB Independent Economic Analysis Board Kenneth L. Casavant, Chair Roger Mann, Vice-Chair Joel R Independent Economic Analysis Board January 2004 Document IEAB 2004-01 #12;IEAB Juvenile Passage Cost in the Columbia River Basin. CEA principles are reviewed and related analyses and policy issues are discussed

363

Economic Perceptions and Economic Voting in Post Communist Countries of East Central Europe  

E-Print Network (OSTI)

Voting Patterns during the Economic Transition in Poland,Timothy Nordstrom. 2003. “Economic Performance and SurvivalCohen, J.E. 2004. “Economic Perceptions and Executive

Tverdova, Yuliya V.

2007-01-01T23:59:59.000Z

364

Economic Impact of the California Cancer Research Act Job Creation and Economic Activity  

E-Print Network (OSTI)

ECONOMIC IMPACT OF THE CALIFORNIA CANCERACT Job creation and economic activity Stanton A. Glantz,RESEARCH AND EDUCATION Economic Impact of the California

Glantz, Stanton A.

2012-01-01T23:59:59.000Z

365

Economic Development | ornl.gov  

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

Success Stories Success Stories Commercialization and Licensing Economic Development Industrial Partnerships Sponsored Research Partnerships Home | Connect with ORNL | For Industry | Partnerships | Success Stories | Economic Development Success Stories Economic Development 1-3 of 3 Results ORNL and Enterprise Center Help Revitalize Chattanooga September 02, 2011 - The Enterprise Center, through its technology-based economic development initiatives, is focused on economic transformation in Chattanooga, Hamilton County, and the Tennessee Valley Corridor region. Seven Companies Selected for ORNL Mentor Protégé Program November 28, 2012 - Seven companies have been selected to participate in the mentor protégé program sponsored by ORNL. The program is a DOE initiative designed to assist energy-related companies in an effort to

366

c36.xls  

Annual Energy Outlook 2012 (EIA)

Air-Volume System ... 184 30 50 9 1.05 1.11 1.12 1.25 0.08 0.02 0.02 0.01 Economizer Cycle ... 253 21 51 5 1.09 1.08 1.08 1.26 0.11 0.01 0.02...

367

c24.xls  

Gasoline and Diesel Fuel Update (EIA)

Air-Volume System ... 2,369 47.2 29.2 19.7 37.9 83.8 17.5 0.35 7.37 Economizer Cycle ... 2,242 46.9 30.4 18.9 41.8 85.7 16.4 0.34 7.30 HVAC...

368

--No Title--  

Annual Energy Outlook 2012 (EIA)

Variable Air-Volume System ... 2,369 47.2 29.2 19.7 37.9 83.8 17.5 0.35 7.37 Economizer Cycle ... 2,242 46.9 30.4 18.9 41.8 85.7 16.4 0.34 7.30 HVAC...

369

ECONOMICS UPDATE Issue 1 Autumn 2014  

E-Print Network (OSTI)

ECONOMICS UPDATE Issue 1 Economics Update Autumn 2014 UNIVERSITY OF ABERDEEN � DEPARTMENT OF ECONOMICS IN THIS ISSUE Welcome to the first Economics update! In this twice-yearly publication, we. In the Research Assessment Exercise results of 2008, 100% of Economics research, was judged to be of international

Levi, Ran

370

The Economic Ascent of China and the Potential for Restructuring the Capitalist World-Economy  

E-Print Network (OSTI)

Anderson, D. ????. “Japan’s Coking Coal Procurement System:in the International Coking Coal Market. ” Energy EconomicsHogan. ????. “Australia- Japan Coking Coal Trade: A Hedonic

Paul S. Ciccantell; Stephen G. Bunker

2005-01-01T23:59:59.000Z

371

Economic Development Tax Credit Program (Wisconsin) | Department of Energy  

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

Tax Credit Program (Wisconsin) Tax Credit Program (Wisconsin) Economic Development Tax Credit Program (Wisconsin) < Back Eligibility Commercial Agricultural Construction Developer Fuel Distributor Industrial Installer/Contractor Institutional Investor-Owned Utility Low-Income Residential Multi-Family Residential Retail Supplier Systems Integrator Transportation Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Wind Solar Program Info State Wisconsin Program Type Corporate Tax Incentive Provider Wisconsin Economic Development Corporation The Economic Development Tax Credit (ETC) program was enacted in 2009 and eliminated five existing tax credit programs (Agricultural Development Zones, Airport Development Zones, Community Development Zones, Enterprise

372

Economics of Hydropower Plants  

Science Journals Connector (OSTI)

The feed-in tariff scheme, as its name suggests is based ... plant. The most important aspect of a feed-in tariff system is that the grid operator cannot ... stations must reduce their power generation. The feed-in

Prof. Dr.-Ing Hermann-Josef Wagner…

2011-01-01T23:59:59.000Z

373

Essays in labor economics  

E-Print Network (OSTI)

My dissertation is a collection of three essays that consider various aspects of income inequality and the demand for skill. The first chapter uses the advent of the US Interstate Highway System to examine the effect of ...

Michaels, Guy, Ph. D. Massachusetts Institute of Technology

2006-01-01T23:59:59.000Z

374

Essays on Power System Economics Dissertation  

E-Print Network (OSTI)

emissions, such as nuclear and IGCC CCS, while penalizing coal. However, the variability of fuel prices with many issues. I thank the Ministry of Energy Thailand for giving me an opportunity to study here. I

375

ILLINOIS ECONOMIC The Monthly Illinois Economic Review contains information on national, statewide, and local  

E-Print Network (OSTI)

ILLINOIS ECONOMIC REVIEW The Monthly Illinois Economic Review contains information on national, statewide, and local economic performance by measuring job growth, unemployment, and business activity. This information is compiled by IGPA Economist Geoffrey Hewings, director of the Regional Economics Applications

Shim, Moonsub

376

BA Economics and BA Financial Economics Assessment Plan Program Learning Objectives  

E-Print Network (OSTI)

BA Economics and BA Financial Economics ­ Assessment Plan Program Learning Objectives The program will prepare graduates: 1. Understand the "economic way model economic decisions. 3. The ability to analyze historical and current events

Cantlon, Jessica F.

377

Economic assessment of the thin polymer icemaker  

SciTech Connect

We have constructed and tested a small device to produce ice in ice/water mixtures using a cold fluid as the heat sink. The device is a flexible heat exchanger constructed from a thin film of a suitable polymer. When filled with circulating liquid coolant the heat exchanger consists of an inflated series of parallel tubes; Ice forms on the outside in complementary half cylinders. When the circulation in cut off, gravity drains the coolant and the static head of the water bath crushes the tubes, freeing them from the ice which floats to the surface. We here report an economic assessment of this device. In its present form, we find it competitive with existing commercial ice making systems. The analysis also points out two areas where further technical progress could lead to a significant economic advantage for the polymer film ice maker.

Leigh, R.W. [Pratt Inst., Brooklyn, NY (United States)

1992-07-01T23:59:59.000Z

378

ENGINEERING AND ECONOMIC APPLICATIONS OF COMPLEMENTARITY PROBLEMS  

E-Print Network (OSTI)

ENGINEERING AND ECONOMIC APPLICATIONS OF COMPLEMENTARITY PROBLEMS M. C. FERRIS AND J. S. PANG SIAM problems, variational inequalities, frictional contact, structural engineering, economic equilibria, the subject of complementarity problems, with its diverse applications in engineering, economics, and sciences

Ferris, Michael C.

379

PUBLIC EDUCATION, TECHNOLOGICAL CHANGE AND ECONOMIC PROSPERITY  

E-Print Network (OSTI)

;1 Introduction The role of education in the process of economic development has been analyzed exten- sively #12; PUBLIC EDUCATION, TECHNOLOGICAL CHANGE AND ECONOMIC PROSPERITY Klaus Prettner #12;Public education, technological change and economic prosperity Klaus Prettnera a) Harvard University

Krivobokova, Tatyana

380

14.731 Economic History, Fall 2003  

E-Print Network (OSTI)

A survey of world economic history, designed to introduce economics graduate students to the subject matter and methodology of economic history. Topics chosen to show a wide variety of historical experience and illuminate ...

Temin, Peter

Note: This page contains sample records for the topic "air-volume system economizer" 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

Economizer Control Using Mixed Air Enthalpy  

E-Print Network (OSTI)

Enthalpy economizer can theoretically save more energy than temperature based economizer. However, the requirement of outdoor air humidity measurement in the traditional enthalpy economizer control made it impossible. A novel control sequence using...

Feng, J.; Liu, M.; Pang, W.

2007-01-01T23:59:59.000Z

382

The Economic and Community Impacts of  

E-Print Network (OSTI)

The Economic and Community Impacts of Freight Rail #12;Overview · 18 month project (started, Minnesota Department of Transportation (MnDOT) · Vann Cunningham, Assistant Vice President, Economic Development, BNSF · Kevin Kelleher, Economic Development Program Specialist, Minnesota Department

Minnesota, University of

383

Economic predictions for heat mining : a review and analysis of hot dry rock (HDR) geothermal energy technology  

E-Print Network (OSTI)

The main objectives of this study were first, to review and analyze several economic assessments of Hot Dry Rock (HDR) geothermal energy systems, and second, to reformulate an economic model for HDR with revised cost components.

Tester, Jefferson W.

1990-01-01T23:59:59.000Z

384

Capital indivisibility and economic efficiency  

Science Journals Connector (OSTI)

......i-r)T ) . (50) CAPITAL INDIVISIBILITY AND ECONOMIC...justifiable when paying off past expenditure, but, when applied to future expenditure, it leads to effectively...uncertainty about future capital investment, this weighting......

W. R. Hodgkins

2014-01-01T23:59:59.000Z

385

Energy Economics and Corporate Profitability  

E-Print Network (OSTI)

attitudes about energy conservation and planning come from using economic measures that do not accurately reflect the future earnings capabilities and cash flow generating characteristics of industrial firms. An action plan is presented for energy managers...

Gilbert, J. S.

1982-01-01T23:59:59.000Z

386

Economic Viability Under Frozen Conflict:.  

E-Print Network (OSTI)

??The thesis attempts at assessing dynamics of economic viability of Moldova’s break-away region Transnistria living under frozen conflict. By assuming that Transnistria is a small… (more)

Sabor, Iryna

2012-01-01T23:59:59.000Z

387

Sandia National Laboratories: economically competitive next generation...  

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

economically competitive next generation biofuels JBEI Updates Techno-Economic Modeling Tools for Biofuels On September 18, 2013, in Biofuels, Biomass, Computational Modeling &...

388

The Law and Economics of Costly Contracting  

E-Print Network (OSTI)

Markets, Relational Contracting, New York: Free Press (and the Value of Contracting,” 89 American Economic ReviewLAW AND ECONOMICS OF COSTLY CONTRACTING BY ALAN SCHWARTZ AND

Schwartz, Alan; Watson, Joel

2001-01-01T23:59:59.000Z

389

Workforce and Economic Development | Department of Energy  

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

Workforce and Economic Development Workforce and Economic Development Slides presented in the "What's Working in Residential Energy Efficiency Upgrade Programs Conference -...

390

Economic Dispatch of Electric Generation Capacity | Department...  

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

Economic Dispatch of Electric Generation Capacity Economic Dispatch of Electric Generation Capacity A report to congress and the states pursuant to sections 1234 and 1832 of the...

391

Revolving Economic Development and Initiative (South Dakota)  

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

The Revolving Economic Development and Initiative (REDI) provides low interest loans to start-up firms, businesses that are expanding or relocating and local economic development corporations. The...

392

Sandia National Laboratories: Assessing the Economic Potential...  

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

EnergyBiofuelsAssessing the Economic Potential of Advanced Biofuels Assessing the Economic Potential of Advanced Biofuels Fabrication of AMI Demonstration Blade Begun...

393

Technical Demonstration and Economic Validation of Geothermal...  

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

Economic Validation of Geothermal-Produced Electricity from Coproduced Water at Existing OilGas Wells in Texas Technical Demonstration and Economic Validation of...

394

Business, Economics & Informatics  

E-Print Network (OSTI)

External Relations Finance Planning & Business Systems Estates and Facilities Human Resources Vice Master and Screen Media Department of Media and Cultural Studies Department of European Cultures and Languages, Mathematics and Statistics Department of Management Department of Computer Science and Informatics Department

Cocea, Mihaela

395

Economics of Nuclear Power  

Science Journals Connector (OSTI)

...units went on line (3). Since...energy to the transmission sys-tem at...21.3 *AIl data shown are taken...have a long outage or major overhaul...individual unit data above and below...that were on line at the end...view of the data in Table 6...

A. D. Rossin; T. A. Rieck

1978-08-18T23:59:59.000Z

396

Political-economic processes and collective decision making  

E-Print Network (OSTI)

model of the political economic process? There is a preciseto model a political-economic process. We point out that in1994 Economic~ POLITICAL ECONOMIC PROCESSES AND COLLECTIVE

Rausser, Gordon C.; Simon, Leo K.; van 't Veld, Klaas T.

1994-01-01T23:59:59.000Z

397

Gas engine driven chiller development and economics  

SciTech Connect

The TECOGEN Division of Thermo Electron Corporation has developed a nominal 150 ton engine driven chiller system under the sponsorship of the Gas Research Institute. The system incorporates an engine directly driving a screw compressor to produce about 130 tons of cooling capacity and a single effect absorption chiller driven by hot water recovered from engine heat to produce another 30 tons of cooling capacity. An economic analysis shows that it will be possible to recover the cost premium of engine driven chiller systems in most US cities in 3 years or less with the O and M savings of these systems when this cost premium is $30 per ton. 4 references, 13 figures, 5 tables.

Koplow, M.D.; Searight, E.F.; Panora, R.

1986-03-01T23:59:59.000Z

398

Socio-economic drivers in implementing bioenergy projects  

Science Journals Connector (OSTI)

Within the international community there is considerable interest in the socio-economic implications of moving society towards the more widespread use of renewable energy resources. Such change is seen to be very necessary but is often poorly communicated to people and communities who need to accept such changes. There are pockets of activity across the world looking at various approaches to understand this fundamental matter. Typically, socio-economic implications are measured in terms of economic indices, such as employment and monetary gains, but in effect the analysis relates to a number of aspects which include social, cultural, institutional, and environmental issues. The extremely complex nature of bioenergy, many different technologies involved and a number of different, associated aspects (socio-economics, greenhouse gas mitigation potential, environment, …) make this whole topic a complex subject. This paper is primarily a descriptive research and review of literature on employment and other socio-economic aspects of bioenergy systems as drivers for implementing bioenergy projects. Due to the limited information, this paper does not provide absolute quantification on the multiplier effects of local and or national incomes of any particular country or region. The paper intends to trigger a more in-depth discussion of data gaps, potentials, opportunities and challenges. An encouraging trend is that in many countries policy makers are beginning to perceive the potential economic benefits of commercial biomass e.g. employment/earnings, regional economic gain, contribution to security of energy supply and all others.

J. Domac; K. Richards; S. Risovic

2005-01-01T23:59:59.000Z

399

Economics of Nuclear Power  

Science Journals Connector (OSTI)

...electric energy production in the United...delays, and cost increases...units in operation, in addition...smaller coaland oil-fired units...system. One index of performance...have stack-gas scrubbers...coal, and gas, which have...20 percent cost advantage...re-mainder will be oil. Generating...trains in operation, each making...Report on Equipment Availability...esti-mated cost for an oil-fired station...without flue gas scrubbers...gas for the production of electricity...Government Operations, U.S...

A. D. Rossin; T. A. Rieck

1978-08-18T23:59:59.000Z

400

DOE Hydrogen Analysis Repository: Economic Analysis of Hydrogen Energy  

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

Economic Analysis of Hydrogen Energy Station Concepts Economic Analysis of Hydrogen Energy Station Concepts Project Summary Full Title: Economic Analysis of Hydrogen Energy Station Concepts: Are 'H2E-Stations' a Key Link to a Hydrogen Fuel Cell Vehicle Infrastructure? Project ID: 244 Principal Investigator: Timothy Lipman Brief Description: This project expands on a previously conducted, preliminary H2E-Station analysis in a number of important directions. Purpose This analysis, based on an integrated Excel/MATLAB/Simulink fuel cell system cost and performance model called CETEEM, includes the following: several energy station designs based on different sizes of fuel cell systems and hydrogen storage and delivery systems for service station and office building settings; characterization of a typical year of operation

Note: This page contains sample records for the topic "air-volume system economizer" 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

The Economic Impact of the University of  

E-Print Network (OSTI)

The Economic Impact of the University of British Columbia Walter Sudmant Planning and Institutional "economic impact"? 6 What do we mean by Economic Impact? 7 1. Direct spending by UBC 9 2. Student Spending 10 3. Visitor Spending 11 4. The Economic Impact of UBC Research 13 · Spillover Effect 14 a. A case

Ollivier-Gooch, Carl

402

THE ECONOMIC SITUATION IN THE ECE REGION  

E-Print Network (OSTI)

THE ECONOMIC SITUATION IN THE ECE REGION DIETER HESSE ECONOMIC ANALYSIS DIVISION UNECE #12;Major trends in the global economy so far in 2003 Global economic activity picked up ­ but uneven regional growth forces United States remains main engine of global economic growth Japan and Asian emerging

403

The Economic State of Milwaukee, Prepared by  

E-Print Network (OSTI)

The Economic State of Milwaukee, 1990-2008 Prepared by: Center for Economic Development University of Wisconsin-Milwaukee December 2010 For further information contact: Joel Rast UWM Center for Economic of a two-year study by the University of Wisconsin-Milwaukee Center for Economic Development (CED

Saldin, Dilano

404

Economic benefits of greenspace Research Report  

E-Print Network (OSTI)

Economic benefits of greenspace Research Report #12;#12;Research Report Economic benefits of greenspace A critical assessment of evidence of net economic benefits Forestry Commission: Edinburgh Vadim. ISBN 978-0-85538-865-2 Saraev, V. (2012) Economic benefits of greenspace: a critical assessment

405

Economic Assessment of the NIST Alternative  

E-Print Network (OSTI)

98-1 Planning Report Economic Assessment of the NIST Alternative Refrigerants Research Program and Economic Analysis Group January 1998 U.S Department of Commerce Technology Administration #12;ECONOMIC and Economic Analysis Group Prepared by: Matthew T. Shedlick Albert N. Link John T. Scott Approved by: David P

406

Economics UMass Lowell Commonwealth Honors Track  

E-Print Network (OSTI)

Economics UMass Lowell Commonwealth Honors Track Fall 2013 and Beyond Freshman Year/ Fall Semester.201 (H) Honors Economics I 3 49.202 Economics II 3 92.121 Pre-calc or any higher level 3 92.109 First Year Seminar 1 16 16 Sophomore Year/Fall Semester Cr Sophomore/Spring Semester 49.3/4 Economics

Massachusetts at Lowell, University of

407

An Economic Profile of the Biosciences Industry  

E-Print Network (OSTI)

An Economic Profile of the Biosciences Industry in West Virginia1 February 2008 By Anthony C. Gregory & Tom S. Witt Bureau of Business and Economic Research College of Business and Economics West are the responsibility of the authors. Mr. Gregory is a graduate research assistant, Bureau of Business and Economic

Mohaghegh, Shahab

408

Economics Major? Need Money for School?  

E-Print Network (OSTI)

Economics Major? Need Money for School? Then Apply for a: The Economics Department will award two scholarships, each in the amount of $750 this Spring 2014 to students majoring in Economics at San Francisco. First - a retired member of the Economics faculty. Both graduate and undergraduate students

409

Economic Assessment of the NIST Ceramic  

E-Print Network (OSTI)

98-3 Planning Report Economic Assessment of the NIST Ceramic Phase Diagram Program Prepared by and Economic Analysis Group February 1998 U.S Department of Commerce Technology Administration #12;#12;ECONOMIC of Standards and Technology Program Office Strategic Planning and Economic Analysis Group Prepared under

410

Virginia Coalfield Economic Development Authority (Virginia) | Department  

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

Virginia Coalfield Economic Development Authority (Virginia) Virginia Coalfield Economic Development Authority (Virginia) Virginia Coalfield Economic Development Authority (Virginia) < Back Eligibility Commercial Construction Industrial Program Info Start Date 1990 State Virginia Program Type Industry Recruitment/Support Loan Program Public Benefits Fund Provider Virginia Coalfield Economic Development Authority The Virginia Coalfield Economic Development Authority (VACEDA) was created in 1988 to encourage economic development in the western section of the state. The Authority administers incentive and financing programs designed to encourage new job creation and economic diversification, specifically in the electronic information technology, energy, education, and emerging technology sectors. VCEDA provides financial support for fixed assets,

411

Syllabus for Economics 594 Economics Workshop for Masters Degree Students  

E-Print Network (OSTI)

Example of Research Paper Format: Ariel R. Belasen and Solomon W. Polachek. 2008. "How Hurricanes Affect Wages and Employment in Local Labor Markets", American Economic Review 98(2): 49-53; Solomon W. Polachek Household Survey on Drug Abuse, (ICPSR) to Estimate a Demand Curve for Drug Use employing the methodology

Suzuki, Masatsugu

412

An Economic Look Backward, An Economic Look Forward  

E-Print Network (OSTI)

's largest industrial parks-- Edison, with Raritan Center and Heller Park, and the Turnpike Exit 8A submarket t is now time to assess New Jersey's economic performance in 2006. This will consist of two parts? By Sachiyo Asakawa and James Kerns, Sales Associate­Industrial Division This new global economy is a major

413

DEPARTMENT OF ECONOMICS AND FINANCE COLLEGE OF BUSINESS AND ECONOMICS  

E-Print Network (OSTI)

CHRISTCHURCH, NEW ZEALAND Modeling the Effect of Oil Price on Global Fertilizer Prices Ping-Yu Chen, Chia;Modeling the Effect of Oil Price on Global Fertilizer Prices* Ping-Yu Chen Department of Applied Economics of this paper is to evaluate the effect of crude oil price on global fertilizer prices in both the mean

Hickman, Mark

414

DEPARTMENT OF ECONOMICS AND FINANCE COLLEGE OF BUSINESS AND ECONOMICS  

E-Print Network (OSTI)

CHRISTCHURCH, NEW ZEALAND Interdependence of International Tourism Demand and Volatility in Leading ASEAN in Leading ASEAN Destinations* Chia-Ling Chang Department of Applied Economics National Chung Hsing leading destinations in ASEAN, namely Indonesia, Malaysia, Singapore and Thailand. Each of these countries

Hickman, Mark

415

DEPARTMENT OF ECONOMICS COLLEGE OF BUSINESS AND ECONOMICS  

E-Print Network (OSTI)

, NEW ZEALAND SOME NEW APPROACHES TO FORECASTING THE PRICE OF ELECTRICITY: A STUDY OF CALIFORNIAN MARKET of Business and Economics University of Canterbury Private Bag 4800, Christchurch New Zealand #12;WORKING PAPER No. 05/2008 SOME NEW APPROACHES TO FORECASTING THE PRICE OF ELECTRICITY: A STUDY OF CALIFORNIAN

Hickman, Mark

416

DEPARTMENT OF ECONOMICS AND FINANCE COLLEGE OF BUSINESS AND ECONOMICS  

E-Print Network (OSTI)

CHRISTCHURCH, NEW ZEALAND A Critique of Wolak's Evaluation of the NZ Electricity Market: Introduction and Finance College of Business and Economics University of Canterbury Private Bag 4800, Christchurch New Zealand #12;A Critique of Wolak's Evaluation of the NZ Electricity Market: Introduction and Overview Lewis

Hickman, Mark

417

Economic analysis of fusion breeders  

SciTech Connect

This paper presents a study of the economic performance of Fission/Fusion Hybrid devices. This work takes fusion breeder cost estimates and applies methodology and cost factors used in the fission reactor programs to compare fusion breeders with Liquid Metal Fast Breeder Reactors (LMFBR). The results of the analysis indicate that the Hybrid will be in the same competitive range as proposed LMFBRs and have the potential to provide economically competitive power in a future of rising uranium prices. The sensitivity of the results to variations in key parameters is included.

Delene, J.G.

1985-01-01T23:59:59.000Z

418

The Entropy Law and the impossibility of perpetual economic growth  

E-Print Network (OSTI)

Every production-recycling iteration accumulates an inevitable proportion of its matter-energy in the environment, lest the production process itself would be a system in perpetual motion, violating the second law of Thermodynamics. Such high-entropy matter depletes finite stocks of ecosystem services provided by the ecosphere, hence are incompatible with the long-term growth in the material scale of the economic process. Moreover, the complex natural systems governing such stocks respond to depletion by possibly sudden environmental transitions, thus hindering markets' very ability to adapt to the new equilibrium conditions. Consequently, uncertainty of critical resilience thresholds constrains material economic growth.

Earp, Henrique N Sá

2013-01-01T23:59:59.000Z

419

Fan System Assessment Tool  

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

The Fan System Assessment Tool (FSAT) is a free online software tool that helps industrial users quantify energy use and savings opportunities in industrial fan systems. Use FSAT to understand how well your fan systems are operating, determine the economic benefit of system modifications, and establish which options are most economically viable when multiple opportunities exist for system modification.

420

Environmental and economic risks from sinkholes in west-central Florida  

Science Journals Connector (OSTI)

...Floridas aquifer system is the Tampa Bay 25-million-galday desalination plant, with a second plant of similar capacity planned to...system's water are to continue. coastal environment drawdown economics environmental effects Florida ground water Gulf Coastal Plain...

J. Scheidt; I. Lerche; E. Paleologos

Note: This page contains sample records for the topic "air-volume system economizer" 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

Techno-economic assessment of pulverized coal boilers and IGCC power plants with CO2 capture  

Science Journals Connector (OSTI)

The current studies on power plant technologies suggest that Integrated Gasification Combined Cycle (IGCC) systems are an effective and economic CO2 capture technology pathway. In addition, the system in conventi...

Y. Huang; S. Rezvani; D. McIlveen-Wright…

2010-06-01T23:59:59.000Z

422

Compressed Air Energy Storage System  

E-Print Network (OSTI)

/expanders are crucial for the economical viability of a Compressed Air Energy Storage (CAES) system such as the

Farzad A. Shirazi; Mohsen Saadat; Bo Yan; Perry Y. Li; Terry W. Simon

423

IEAB Independent Economic Analysis Board  

E-Print Network (OSTI)

, (2) on-farm efficiency to reduce irrigation water use, (3) a new pump station on the Okanogan River of Instream Water Supply Components of the Salmon Creek Project Independent Economic Analysis Board Northwest district to continue water delivery to its users. The Proposed Project includes (1) improved water control

424

The Economics of Energy Efficiency  

E-Print Network (OSTI)

The Economics of Energy Efficiency Winter 2013 Why does Comcast give you set-top boxes that use the adoption of more energy- efficient technologies. This course will mostly not cover the "big picture landlord insulate the attic? What makes an investment in energy efficiency attractive? How does a company

California at Davis, University of

425

Climate Change Economics and Policy  

E-Print Network (OSTI)

AFRICA COLLEGE Centre for Climate Change Economics and Policy Adapting to Climate Change 3 CLIMATE...Furthermore, there is strong scientific evidence that climate change will disrupt the global economy, environment and society a growing population in a changing climate is, therefore, a major global challenge. Changes in climate

Romano, Daniela

426

Economic History Revisited: New Uncertainties  

E-Print Network (OSTI)

to the southern and midwestern regions of the United States. However, the large run-up in oil prices is increasingEconomic History Revisited: New Uncertainties I n the last Sitar-Rutgers Regional Report, we are paying ever-increasing prices for fewer available sites. Warehouse sites in the southern portion

427

Maximum Principles in Analytical Economics  

Science Journals Connector (OSTI)

...what he is saying is that the sci-entist who formulates laws of observed empirical phenomena is essentially an economist or economizer. Nonetheless, I must point out that these distinct roles are, almost by coin-cidence so to speak, closely related...

Paul A. Samuelson

1971-09-10T23:59:59.000Z

428

Energy Prices and California's Economic  

E-Print Network (OSTI)

on Energy Prices, Renewables, Efficiency, and Economic Growth: Scenarios and Forecasts, financial support and incentives to promote energy efficiency and renewable energy and decrease the use of fossil fuels. Aligned with that plan, the state legislature recently passed the nation's boldest commitment to renewable energy

Sadoulet, Elisabeth

429

Economics of natural gas upgrading  

SciTech Connect

Natural gas could be an important alternative energy source in meeting some of the market demand presently met by liquid products from crude oil. This study was initiated to analyze three energy markets to determine if greater use could be made of natural gas or natural gas derived products and if those products could be provided on an economically competitive basis. The three markets targeted for possible increases in gas use were motor fuels, power generation, and the chemical feedstocks market. The economics of processes to convert natural gas to transportation fuels, chemical products, and power were analyzed. The economic analysis was accomplished by drawing on a variety of detailed economic studies, updating them and bringing the results to a common basis. The processes analyzed included production of methanol, MTBE, higher alcohols, gasoline, CNG, and LNG for the transportation market. Production and use of methanol and ammonia in the chemical feedstock market and use of natural gas for power generation were also assessed. Use of both high and low quality gas as a process feed stream was evaluated. The analysis also explored the impact of various gas price growth rates and process facility locations, including remote gas areas. In assessing the transportation fuels market the analysis examined production and use of both conventional and new alternative motor fuels.

Hackworth, J.H.; Koch, R.W.

1995-07-01T23:59:59.000Z

430

Solar heating and earth insulation for economical houses  

SciTech Connect

The implementation of manufactured solar energy systems for home use has been stagnated by high costs. The Rural Housing Research Unit has directed a major portion of its research efforts toward site built warm air solar systems. These systems are integrated into the house structure and have been found to be effective and economical. Several earth embanked structures have been built and evaluated. This paper describes the design considerations, the construction experience, and the results achieved.

Newman, J.O.

1982-01-01T23:59:59.000Z

431

Solar heating and earth insulation for economical houses  

SciTech Connect

The implementation of manufactured solar energy systems for home use has been stagnated by high costs. The Rural Housing Research Unit has directed a major portion of its research efforts toward site built warm air solar systems. These systems are integrated into the house structure and have been found to be effective and economical. Several earth embanked structures have been built and evaluated. This paper describes the design considerations, the construction experience, and the results achieved.

Newman, J.O.

1982-07-01T23:59:59.000Z

432

System Analysis Success Stories | Department of Energy  

Office of Environmental Management (EM)

System Analysis Success Stories Program Links System Analysis Projects System Analysis Success Stories Economic Impact Tools National Geothermal Data System (NGDS) Initiative...

433

Development of a Secure, Economic and Environmentally friendly Modern Power  

Open Energy Info (EERE)

Secure, Economic and Environmentally friendly Modern Power Secure, Economic and Environmentally friendly Modern Power System (Smart Grid Project) Jump to: navigation, search Project Name Development of a Secure, Economic and Environmentally friendly Modern Power System Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

434

Economic Impact Analysis for EGS Geothermal Project | Open Energy  

Open Energy Info (EERE)

Impact Analysis for EGS Geothermal Project Impact Analysis for EGS Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Economic Impact Analysis for EGS Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Geothermal Analysis Project Description This proposed study will involve studying the impacts associated with jobs, energy and environment (as a result of investments in geothermal industry and specific EGS technologies) through the creation of a Geothermal Economic Calculator tool (GEC). The study will cover Enhanced Geothermal Systems (EGS), conventional hydrothermal, low temperature geothermal and coproduced fluid technologies resulting in electric power production. The GEC created will be capable of helping end users (public and the industry) perform region specific economic impact analyses using a web platform that will be hosted by EGI for different geothermal technologies under EGS that will be used for electric power production.

435

Alleghany Highlands Economic Development Authority (Virginia) | Department  

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

Alleghany Highlands Economic Development Authority (Virginia) Alleghany Highlands Economic Development Authority (Virginia) Alleghany Highlands Economic Development Authority (Virginia) < Back Eligibility Commercial Construction Developer Industrial Investor-Owned Utility Municipal/Public Utility Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Virginia Program Type Enterprise Zone Industry Recruitment/Support Loan Program Public Benefits Fund Provider Alleghany Highlands Economic Development Corporation The Alleghany Highlands Economic Development Authority was created to encourage economic development in the Alleghany Highlands. The Authority provides financial support for the purchase of real estate, construction of

436

Economic Growth in Ukraine: What if Reforms and Economic Recovery Had Started Earlier?  

Science Journals Connector (OSTI)

The paper examines Ukraine’s hypothetical economic performance over the decade ... of other countries providing intermediate alternatives. Had Ukraine replicated the economic performance of “comparator” ... parti...

Oleh Havrylyshyn; Bogdan Lissovolik…

2002-01-01T23:59:59.000Z

437

American Economic Association How (Not) to Sell Nuclear Weapons  

E-Print Network (OSTI)

American Economic Association How (Not) to Sell Nuclear Weapons Author(s): Philippe Jehiel, Benny://www.jstor.org #12;How (Not)to Sell NuclearWeapons By PHILIPPEJEHIEL,BENNY MOLDOVANU, AND ENNio STACCHETTI) areinterestedto acquirefis- sionable material, or even complete weapon systems from Ukraine. Russia and the United

Franz, Sven Oliver

438

Data Center Economizer Cooling with Tower Water; Demonstration of a  

E-Print Network (OSTI)

exchanger was configured to use higher temperature water produced by a cooling tower alone. The other coilLBNL-6660E Data Center Economizer Cooling with Tower Water; Demonstration of a Dual Heat Exchanger-temperature cooling water, so that it can support many more hours of free cooling compared to traditional systems

439

Economic prospects of the Integral Fast Reactor (IFR) fuel cycle  

SciTech Connect

The IFR fuel cycle based on pyroprocessing involves only few operational steps and the batch-oriented process equipment systems are compact. This results in major cost reductions in all of three areas of reprocessing, fabrication, and waste treatment. This document discusses the economic aspects of this fuel cycle.

Chang, Y.I.; Till, C.E.

1991-01-01T23:59:59.000Z

440

Energy grades and economic growth  

SciTech Connect

In 1709 William Darby invented the coking process that led to the use of coal in eighteenth century England. From an economic standpoint, one could say that this event more than any other ushered in the industrial revolution with its dependence on coal and steel produced with coal. However, from an engineering perspective, there is another cause of the industrial revolution that is more subtle-the physical makeup of the energy resources available to England. According to Simon Kuznets, an economic epoch, i.e., a period of time defined by rapid population increase for a given region, {open_quotes}is determined and shaped by the application and ramification of an {open_quote}epochal{close_quote} innovation{close_quotes}, in other words, new significant technologies.

Reynolds, D.B.

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "air-volume system economizer" 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

Essays in public finance and labor economics  

E-Print Network (OSTI)

This thesis examines three questions of causality relevant to public finance and labor economics: the effect of racial segregation on city characteristics, the effect of divorce on women's economic outcomes, and the effect ...

Ananat, Elizabeth Oltmans

2006-01-01T23:59:59.000Z

442

SWAMC Economic Summit | Department of Energy  

Office of Environmental Management (EM)

SWAMC Economic Summit SWAMC Economic Summit March 4, 2015 6:00AM AKST to March 6, 2015 3:00PM AKST Anchorage, Alaska Hotel Captain Cook 939 West 5th Avenue Anchorage, AK 99501 The...

443

ASSESSMENT OF ECONOMIC PERFORMANCE OF MODEL PREDICTIVE  

E-Print Network (OSTI)

ASSESSMENT OF ECONOMIC PERFORMANCE OF MODEL PREDICTIVE CONTROL THROUGH VARIANCE/CONSTRAINT TUNING advanced process control (APC) strategies to deal with multivariable constrained control problems with an ultimate objective towards economic optimization. Any attempt to evaluate MPC performance should therefore

Huang, Biao

444

Essays on conflict, cooperation and economic development  

E-Print Network (OSTI)

This dissertation consists of three chapters on topics relating to conflict, social cooperation and development economics. Several studies have identified the impact of adverse economic shocks on civil conflict using ...

Ralston, Laura R. (Laura Rosalind)

2013-01-01T23:59:59.000Z

445

Economic Issues Relating to Geothermal Energy Use  

Science Journals Connector (OSTI)

This chapter begins with a general discussion of why an economic analysis is required and whether it should be called economic or financial. The costs and cash flows for a single isolated geothermal project are t...

Arnold Watson

2013-01-01T23:59:59.000Z

446

Essays in experimental and development economics  

E-Print Network (OSTI)

This thesis is a collection of three essays on economic development and experimental economics. In Chapter 1, I present experimental evidence about how Thais treat information from domestic and foreign sources. Thai students ...

Healy, Andrew J

2005-01-01T23:59:59.000Z

447

Variables Affecting Economic Development of Wind Energy  

SciTech Connect

NREL's JEDI Wind model performed an analysis of wind-power-related economic development drivers. Economic development benefits for wind and coal were estimated using NREL's JEDI Wind and JEDI Coal models.

Lantz, E.; Tegen, S.

2008-07-01T23:59:59.000Z

448

Essays in development and environmental economics  

E-Print Network (OSTI)

This thesis is a collection of three empirical essays on economic development and environmental economics. Chapter 1 measures the response of U.S. based multinational firms to the Clean Air Act Amendments (CAAA), which ...

Hanna, Rema

2005-01-01T23:59:59.000Z

449

The Economics of Antifoulant Application  

E-Print Network (OSTI)

foul ant application are evaluated based on the optimum exchanger cleaning interval. Sensitivities to antifou1ant effectiveness are calculated and procedures which can be used to evaluate the economic optimum use of anti foul ants are described.... This fouling effect can be somewhat mitigated by periodic chemical or mechanical cleaning of the heat exchanger surface, and by the addition of antifou1ants. The typical decay in heat recovery capability due to fouling and restoration after heat exchanger...

Siegell, J. H.

450

Economics & Finance MA or BSc (Single Honours Degrees)  

E-Print Network (OSTI)

88 Economics & Finance MA or BSc (Single Honours Degrees) Applied Economics Economics Financial Economics BA (International Honours Degrees) Economics See page 13 MA or BSc (Joint Honours Degrees) Economics and one of: Management Mathematics MA (Joint Honours Degrees) Economics and one of: Ancient

Brierley, Andrew

451

The economic burden of sunscreen usage  

E-Print Network (OSTI)

Economic Burden of Sunscreen Usage Ritika Johal 1 , Michaelprice per ounce. Sunscreen Usage To estimate the daily use

Johal, Ritika; Leo, Michael S; Ma, Brian; Sivamani, Raja K

2014-01-01T23:59:59.000Z

452

Essays on Environmental and Resource Economics  

E-Print Network (OSTI)

spaces, water treatment, environmental management, wastespaces, water treatment, environmental management, wasteWater Standards. ” Journal of Environmental Economics and Management,

Toledo, Chantal Nathalie

2013-01-01T23:59:59.000Z

453

HVAC systems in the current stock of U. S. K-12 schools. Final report, May 91-Mar 92  

SciTech Connect

The report summarizes information on heating, ventilating, and air-conditioning (HVAC) systems commonly found in U.S. school buildings and the effect that operating these systems has on indoor radon levels. The report describes the ability of various HVAC systems to pressurize and ventilate classroom spaces, how they operate, and how they are controlled. Some information is given to compare systems from the standpoint of energy use, cost, and their ability to maintain stable levels of static pressure in classrooms and/or to adequately ventilate the spaces. There do not appear to be any well defined trends in types of HVAC systems involved in current school building construction and modification. Systems looked at include those using reheat and/or mixing, unit ventilators (UVs), and two-fan, dual-duct variable air volume (VAV) systems.

Parker, J.D.

1992-07-01T23:59:59.000Z

454

Economic Viability of Dynamic Spectrum Management  

E-Print Network (OSTI)

and Economics Lab Department of Information Engineering The Chinese University of Hong Kong #12;#12;1 EconomicEconomic Viability of Dynamic Spectrum Management Jianwei Huang Network Communications efficiently. Successful im- plementation of DSM is not a pure engineering issue. It is also a complicated

Huang, Jianwei

455

Competition Policy, Bailouts and the Economic Crisis  

E-Print Network (OSTI)

Competition Policy, Bailouts and the Economic Crisis by Bruce Lyons School of Economics Davies, John Fingleton, Alan Gregory, John Kay, John Kwoka and a CCP seminar. None of them can be held responsible for the views I express. Contact details: Bruce Lyons, School of Economics and the ESRC Centre

Feigon, Brooke

456

ECONOMIC ANALYSIS OF INSURANCE FRAUD Pierre PICARD  

E-Print Network (OSTI)

ECONOMIC ANALYSIS OF INSURANCE FRAUD Pierre PICARD August 2012 Cahier n° 2012-23 ECOLE:chantal.poujouly@polytechnique.edu #12;ECONOMIC ANALYSIS OF INSURANCE FRAUD1 Pierre PICARD2 August 2012 Cahier n° 2012-23 Abstract: We survey recent developments in the economic analysis of insurance fraud. The paper first sets out the two

Boyer, Edmond

457

Socio-economic dynamics of biofuel  

E-Print Network (OSTI)

i Socio-economic dynamics of biofuel development in Asia Pacific Christina Schott Jakarta, 2009 #12;ii Socio-economic dynamics of biofuel development in Asia Pacific Socio-economic dynamics of biofuel of many biofuels has turned out to be far from sustainable. The carbon balance often proves to be negative

458

Desalted Seawater for Agriculture: Is It Economic?  

Science Journals Connector (OSTI)

...7. W. E. Hoehn, The Economics of Nuclear Reactors for Power...P. Sporn in Nuclear Power Economics-1962 through 1967, report...First Int. Symp. Water Desalination [cited by Wolfo-witz...of the Committee on the Economics of Water Resource Development...

Marion Clawson; Hans H. Landsberg; Lyle T. Alexander

1969-06-06T23:59:59.000Z

459

Department of Economics 3151 Social Science Plaza  

E-Print Network (OSTI)

in Economic History 47 (April 2010), 158-178. `The Estate Acts Database: A New Source for British History.S., Economics, University of Minnesota 1998 B.A., Summa Cum Laude, History, University of Minnesota 1998 B Century England?' The Journal of Economic History, 65 (June 2005), 439-468. `Turnpike Trusts

Loudon, Catherine

460

APPALACHIAN COLLEGES COMMUNITY ECONOMIC DEVELOPMENT PARTNERSHIP  

E-Print Network (OSTI)

of ACA institutions 2. Build value-added and sustainable campus-community economic developmentAPPALACHIAN COLLEGES COMMUNITY ECONOMIC DEVELOPMENT PARTNERSHIP The UNC-Chapel Hill Office of Economic and Business Development and the Appalachian College Association proudly announce the Appalachian

Engel, Jonathan

Note: This page contains sample records for the topic "air-volume system economizer" 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

Planning Report 04-3 Measuring Economic  

E-Print Network (OSTI)

Planning Report 04-3 Measuring Economic Effects of Technical Barriers to Trade on U.S. Exporters not necessarily reflect the opinions or policies of its research sponsors. Measuring Economic Effects of Technical, such as tariffs, concern has grown about the possible economic effects of technical barriers to trade (TBTs

462

January 11, 2001 IEAB Independent Economic  

E-Print Network (OSTI)

January 11, 2001 1 IEAB Independent Economic Analysis Board Daniel D. Huppert, Chair Lon L. Peters Radtke Economics of Water Acquisition Projects Go to Appendix A Go to Appendix B Go to Appendix C Developed by the Independent Economic Analysis Board For the Northwest Power Planning Council December 21

463

RISING ECONOMIC INSECURITY AMONG SENIOR SINGLE WOMEN  

E-Print Network (OSTI)

RISING ECONOMIC INSECURITY AMONG SENIOR SINGLE WOMEN Tatjana Meschede Martha Cronin Laura Sullivan paying bills, forgoing home maintenance or medical needs. New research shows that economic insecurity of the Great Recession had been felt--economic insecurity among this population subgroup increased by one

Snider, Barry B.

464

SERG Research Ethics Social and Economic  

E-Print Network (OSTI)

in social values. The issues involved in the process of social and economic research are becoming moreSERG Research Ethics Social and Economic Research Group: Research Ethics Contents Contents and manipulation is increasing. According to the Economic and Social Research Council (ESRC 2009) research ethics

465

NZER WORKING PAPER SERIES BOLIVIA'S ECONOMIC CRISIS  

E-Print Network (OSTI)

process throughout this century, --1-- #12;'acle I Economic Performance in the jg8Os, Se'ected CountriesNZER WORKING PAPER SERIES BOLIVIA'S ECONOMIC CRISIS Juan Antonio Morales Jeffrey Sachs Working Paper No. 2620 NATIONAL BUREAU OF ECONOMIC RESEARCH 1050 Massachusetts Avenue Cambridge, MA 02138

466

The Economic Impacts of NIST Cholesterol Standards  

E-Print Network (OSTI)

00-4 Planning Report The Economic Impacts of NIST Cholesterol Standards Program Prepared by: TASC, Inc. for National Institute of Standards & Technology Program Office Strategic Planning and Economic Analysis Group September 2000 U.S Department of Commerce Technology Administration #12;The Economic Impacts

467

Economic Impact of Medicaid on South Carolina  

E-Print Network (OSTI)

Economic Impact of Medicaid on South Carolina Developed for The SC Department of Health and Human 2002 #12;Medicaid Economic Impact, i Executive Summary This study analyzes the impact of Medicaid, the health care insurance program, on South Carolina's economic development. South Carolina is considering

Almor, Amit

468

The Economics of HOl1icultural Biotechnology  

E-Print Network (OSTI)

The Economics of HOl1icultural Biotechnology Julian M. Alston Kent J. Bradford Nicholas Kalaitzandonakes SUMMARY. Technological change has driven economic progress in agIiculture and will continue, Department of Agricultural and Resource Econom- ics, University of California, Davis and Associate Director

Bradford, Kent

469

Economics in Film Professors: Dr. Naphtali Hoffman  

E-Print Network (OSTI)

Economics in Film Professors: Dr. Naphtali Hoffman Office:LT 912 Office Phone: (607) 735: This course is designed to achieve two goals: The first is to introduce students to economic problems, debates, and ideas. The second is to develop critical thinking skill by applying what you know of economics

Suzuki, Masatsugu

470

The Economic Legacy of Mahmoud Ahmadinejad  

E-Print Network (OSTI)

The Economic Legacy of Mahmoud Ahmadinejad Prof. Nader Habibi Mahmoud Ahmadinejad, Iran's sixth and working-class Iranians. His campaign promises regarding redistributing wealth, enlarging economic, during his two terms in office, Ahmadinejad indeed implemented a number of important economic reforms

Snider, Barry B.

471

STATE OF CALIFORNIA AIR ECONOMIZER CONTROLS ACCEPTANCE  

E-Print Network (OSTI)

STATE OF CALIFORNIA AIR ECONOMIZER CONTROLS ACCEPTANCE CEC-MECH-5A (Revised 08/09) CALIFORNIA ENERGY COMMISSION CERTIFICATE OF ACCEPTANCE MECH-5A NA7.5.4 Air Economizer Controls Acceptance (Page 1 AIR ECONOMIZER CONTROLS ACCEPTANCE CEC-MECH-5A (Revised 08/09) CALIFORNIA ENERGY COMMISSION

472

Economic Approaches to Understanding Scientific Norms  

E-Print Network (OSTI)

Economic Approaches to Understanding Scientific Norms Michael Strevens To appear in Episteme A A theme of much work taking an "economic approach" to the study of sci- ence is the interaction between of formal methods, proponents of the economic approach offer what are in substantive terms profoundly

Strevens, Michael

473

An energy-economic oil production model  

Science Journals Connector (OSTI)

......such as natural gas, coal, hydro and nuclear power...perspective, this energy-economic model offers an opportunity...Testimony before the Joint Economic Committee of the US Congress...HOEOEK, M. (2010) Coal and oil: the dark monarchs...2001) Introduction to Economic Growth, 2nd edn. New......

Peter Berg; Paul Hanz; Ian Milton

2013-04-01T23:59:59.000Z

474

Chemical Marketing and Economics Division reprints  

Science Journals Connector (OSTI)

Chemical Marketing and Economics Division reprints ... The ACS Chemical Marketing and Economics Division has available reprints of the symposiums listed below. ... Make checks payable to Chemical Marketing and Economics Division, ACS, and send to the assistant treasurer, H. C. McClure, Richardson Co., 2700 West Lake St., Melrose Park, Ill. ...

1968-09-16T23:59:59.000Z

475

Review of Methods for Estimating the Economic Impact of Transportation Improvements  

E-Print Network (OSTI)

, Economics, and Urban Systems Re- search Group; University of Minnesota, Department of Civil Engineering, 500Review of Methods for Estimating the Economic Impact of Transportation Improvements Michael Iacono of Civil Engineering iaco0009@umn.edu RP Braun-CTS Chair of Transportation Engineering; Director of Network

Levinson, David M.

476

Economic Contributions of Agriculture, Natural Resources, and Related Industries in Florida in 2009 1  

E-Print Network (OSTI)

-1826 x312 [http://www.fred.ifas.ufl.edu/ economic-impact-analysis]. The use of trade names, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political modeling system and associated state and county databases (MIG, Inc.) to estimate economic multipliers

Florida, University of

477

Socio-economic futures in climate change impact assessment: using scenarios as  

E-Print Network (OSTI)

Climate impact assessment requires a clear picture of two intimately interrelated processes: socio #12;2 Abstract Climate impact assessment requires a clear picture of two intimately interrelated processes: socio-economic change and climate change. To date, future change in socio- economic systems has

Watson, Andrew

478

Course Syllabus ISEN 303 Engineering Economic Analysis Spring 2009 Texas A&M University  

E-Print Network (OSTI)

Course Syllabus ­ ISEN 303 Engineering Economic Analysis Spring 2009 Texas A&M University Department of Industrial and Systems Engineering Page 1 Spring 2009 TTH 2:20pm ­ 3:35pm 203 Zachry Instructor Syllabus ­ ISEN 303 Engineering Economic Analysis Spring 2009 Texas A&M University Department of Industrial

Boas, Harold P.

479

Economics of Alaska North Slope gas utilization options  

SciTech Connect

The recoverable natural gas available for sale in the developed and known undeveloped fields on the Alaskan North Slope (ANS) total about 26 trillion cubic feet (TCF), including 22 TCF in the Prudhoe Bay Unit (PBU) and 3 TCF in the undeveloped Point Thomson Unit (PTU). No significant commercial use has been made of this large natural gas resource because there are no facilities in place to transport this gas to current markets. To date the economics have not been favorable to support development of a gas transportation system. However, with the declining trend in ANS oil production, interest in development of this huge gas resource is rising, making it important for the U.S. Department of Energy, industry, and the State of Alaska to evaluate and assess the options for development of this vast gas resource. The purpose of this study was to assess whether gas-to-liquids (GTL) conversion technology would be an economic alternative for the development and sale of the large, remote, and currently unmarketable ANS natural gas resource, and to compare the long term economic impact of a GTL conversion option to that of the more frequently discussed natural gas pipeline/liquefied natural gas (LNG) option. The major components of the study are: an assessment of the ANS oil and gas resources; an analysis of conversion and transportation options; a review of natural gas, LNG, and selected oil product markets; and an economic analysis of the LNG and GTL gas sales options based on publicly available input needed for assumptions of the economic variables. Uncertainties in assumptions are evaluated by determining the sensitivity of project economics to changes in baseline economic variables.

Thomas, C.P.; Doughty, T.C.; Hackworth, J.H.; North, W.B.; Robertson, E.P.

1996-08-01T23:59:59.000Z

480

2014 Offshore Wind Market & Economic Analysis Cover Photo | Department...  

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

4 Offshore Wind Market & Economic Analysis Cover Photo 2014 Offshore Wind Market & Economic Analysis Cover Photo Navigant 2014 Offshore Wind Market and Economic Analysis.JPG More...

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


481

Microsoft PowerPoint - 03 Wyss Economic Outlook [Compatibility...  

Office of Environmental Management (EM)

03 Wyss Economic Outlook Compatibility Mode Microsoft PowerPoint - 03 Wyss Economic Outlook Compatibility Mode Microsoft PowerPoint - 03 Wyss Economic Outlook Compatibility...

482

2015 INL TECH BASED ECONOMIC DEVELOPMENT DONATION REQUEST FORM  

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

INL TECH BASED ECONOMIC DEVELOPMENT DONATION REQUEST FORM Regional Economic Development, Entrepreneurship, Technology-Based Economic Development & Innovation Return form to...

483

Iowa Department of Economic Development | Open Energy Information  

Open Energy Info (EERE)

Iowa Department of Economic Development Place: Des Moines, Iowa Zip: 50309 Product: Iowa economic development agency. References: Iowa Department of Economic Development1 This...

484

Energy Implications of Economizer Use in California Data Centers  

E-Print Network (OSTI)

of Outside Air Economizers In Data Center Environments. ”air-side water-side economizer scenarios Transformer Lossesbaseline air-side water-side economizer scenarios Sacramento

Shehabi, Arman

2008-01-01T23:59:59.000Z

485

Modeling agricultural recycling systems for system size and economic potential.  

E-Print Network (OSTI)

??Water is one of the most valued natural resources, and its availability for consumption varies considerably within any region. Recycling water and biomass through reuse… (more)

Hanson, Jeffrey Leland

2007-01-01T23:59:59.000Z

486

MULTIAREA SYSTEM RELIABILITY: THE ECONOMIC EVALUATION OF SYSTEM SECURITY CRITERIA  

E-Print Network (OSTI)

Committee: Professor George Gross Professor Peter W. Sauer Professor Thomas J. Overbye Professor M. A. Pai Associate Professor George Deltas Assistant Professor Uday V. Shanbhag Dr. Eugene Litvinov, ISO New England

Gross, George

487

Stand-alone Renewable Energy-Economic and Financial Analysis | Open Energy  

Open Energy Info (EERE)

Stand-alone Renewable Energy-Economic and Financial Analysis Stand-alone Renewable Energy-Economic and Financial Analysis Jump to: navigation, search Tool Summary Name: Stand-alone Renewable Energy-Economic and Financial Analysis Agency/Company /Organization: World Bank Sector: Energy Focus Area: Renewable Energy Topics: Finance, Implementation, Market analysis, Background analysis Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/EXTRENENERGYTK/0,, Country: Philippines South-Eastern Asia References: Stand-alone Renewable Energy-Economic and Financial Analysis[1] Background Economic Analysis of Solar Home Systems: A Case Study for the Philippines, Peter Meier, Prepared for The World Bank, Washington, D.C. References ↑ "Stand-alone Renewable Energy-Economic and Financial Analysis" Retrieved from

488

Webinar: Lessons From Iowa: The Economic, Market, and Organizational Issues  

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

Webinar: Lessons From Iowa: The Economic, Market, and Webinar: Lessons From Iowa: The Economic, Market, and Organizational Issues in Making Bulk Energy Storage Work - February 9, 2012 (new date) Webinar: Lessons From Iowa: The Economic, Market, and Organizational Issues in Making Bulk Energy Storage Work - February 9, 2012 (new date) This flyer provides details for the February 9, 2012 energy storage webinar featuring Dr. Imre Gyuk of DOE's Office of Electricity Deliverability and Energy Reliability and Bob Schulte from the Iowa Stored Energy Park (ISEP). Due to the large number of participants, the original webinar on January 20, 2012 experienced technical difficulties and was rescheduled. Lessons from Iowa Webinar Announcement - rescheduled.pdf More Documents & Publications Energy Storage Systems 2010 Update Conference Presentations - Day 1,

489

Community and Economic Development Association of Cook County (CEDA) | Open  

Open Energy Info (EERE)

Association of Cook County (CEDA) Association of Cook County (CEDA) Jump to: navigation, search Name Community and Economic Development Association of Cook County (CEDA) Place Chicago, IL Website http://www.cedaorg.net References CEDA Website[1] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Test & Evaluation Partner Partnering Center within NREL Electricity Resources & Building Systems Integration LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! Community and Economic Development Association of Cook County (CEDA) is a company located in Chicago, IL. References ↑ "CEDA Website" Retrieved from "http://en.openei.org/w/index.php?title=Community_and_Economic_Development_Association_of_Cook_County_(CEDA)&oldid=382336"

490

Takashi Negishi,"Kyoto School of Modern Economic Theory", Kyoto Economic Review, 73-1, 2004  

E-Print Network (OSTI)

in Asia ASEAN Economy and Sustainable Development Comparative Development Studies Environmental Economic

Takada, Shoji

491

ECONOMIC IMPACT ANALYSIS PROGRAMS IN THE DEPARTMENT OF FOOD AND RESOURCE ECONOMICS  

E-Print Network (OSTI)

1 ECONOMIC IMPACT ANALYSIS PROGRAMS IN THE DEPARTMENT OF FOOD AND RESOURCE ECONOMICS David Mulkey and human resource sectors. As a part of that initiative, the Department of Food and Resource Economics (FRED) is developing a special program emphasis in economic impact analysis focused on Florida

Florida, University of

492

A review of uranium economics  

Science Journals Connector (OSTI)

The recent increase in the demand for power for commercial use, the challenges facing fossil fuel use and the prospective of cheap nuclear power motivate different countries to plan for the use of nuclear power. This paper reviews many aspects of uranium economics, which includes the advantages and disadvantages of nuclear power, comparisons with other sources of power, nuclear power production and requirements, the uranium market, uranium pricing, spot price and long-term price indicators, and the cost of building a nuclear power facility.

A.K. Mazher

2009-01-01T23:59:59.000Z

493

Advanced CSP Systems Analysis  

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

and sensitivity analyses for assessing system performance and economics of a solar thermal power plant * Acquired tools and methods to develop integrated models to...

494

Advanced Fuel Cycle Economic Tools, Algorithms, and Methodologies  

SciTech Connect

The Advanced Fuel Cycle Initiative (AFCI) Systems Analysis supports engineering economic analyses and trade-studies, and requires a requisite reference cost basis to support adequate analysis rigor. In this regard, the AFCI program has created a reference set of economic documentation. The documentation consists of the “Advanced Fuel Cycle (AFC) Cost Basis” report (Shropshire, et al. 2007), “AFCI Economic Analysis” report, and the “AFCI Economic Tools, Algorithms, and Methodologies Report.” Together, these documents provide the reference cost basis, cost modeling basis, and methodologies needed to support AFCI economic analysis. The application of the reference cost data in the cost and econometric systems analysis models will be supported by this report. These methodologies include: the energy/environment/economic evaluation of nuclear technology penetration in the energy market—domestic and internationally—and impacts on AFCI facility deployment, uranium resource modeling to inform the front-end fuel cycle costs, facility first-of-a-kind to nth-of-a-kind learning with application to deployment of AFCI facilities, cost tradeoffs to meet nuclear non-proliferation requirements, and international nuclear facility supply/demand analysis. The economic analysis will be performed using two cost models. VISION.ECON will be used to evaluate and compare costs under dynamic conditions, consistent with the cases and analysis performed by the AFCI Systems Analysis team. Generation IV Excel Calculations of Nuclear Systems (G4-ECONS) will provide static (snapshot-in-time) cost analysis and will provide a check on the dynamic results. In future analysis, additional AFCI measures may be developed to show the value of AFCI in closing the fuel cycle. Comparisons can show AFCI in terms of reduced global proliferation (e.g., reduction in enrichment), greater sustainability through preservation of a natural resource (e.g., reduction in uranium ore depletion), value from weaning the U.S. from energy imports (e.g., measures of energy self-sufficiency), and minimization of future high level waste (HLW) repositories world-wide.

David E. Shropshire

2009-05-01T23:59:59.000Z

495

Web-Based Economic and Environmental Optimization of Microgrids  

E-Print Network (OSTI)

Our Contribution to Microgrids Technology research TestingEconomic & environmental technology selection Economic &Lai Environmental Energy Technologies Division January 20,

Stadler, Michael

2014-01-01T23:59:59.000Z

496

Lexicographic Optimization of Multiple Economic Objectives in Oil Production from Petroleum Reservoirs  

E-Print Network (OSTI)

Lexicographic Optimization of Multiple Economic Objectives in Oil Production from Petroleum compromising optimality of the primary objective. I. INTRODUCTION Oil is produced from subsurface petroleum Systems Approach to Petroleum Production (ISAPP) knowledge centre. ISAPP is a joint project between Delft

Van den Hof, Paul

497

Decadal Climate Variability: Economic Implications in Agriculture and Water in the Missouri River Basin  

E-Print Network (OSTI)

of Food and Agriculture under grant 2011-67003-30213 in the NSF ? USDA ? DOE Earth System Modeling Program. I thank Dr. Richard Woodward for clarifications on economic theory and discussions on research paths, Dr. Ximing Wu for offering ideas... of Food and Agriculture under grant 2011-67003-30213 in the NSF ? USDA ? DOE Earth System Modeling Program. I thank Dr. Richard Woodward for clarifications on economic theory and discussions on research paths, Dr. Ximing Wu for offering ideas...

Fernandez Cadena, Mario

2013-07-23T23:59:59.000Z

498

The Economics of Computer Hacking  

E-Print Network (OSTI)

This paper considers various classes of computer hackers, with a special emphasis on fame-driven versus profit-driven hackers. We use simple economic analysis to examine how each of these hacking “markets ” work. The resulting framework is employed to evaluate current U.S. policy aimed at reducing the threat of computer hacking and shows that this policy is largely effective. We consider policy adjustments consistent with the insights of the framework provided as a means of strengthening cyber security. * We thank Peter Boettke, Tony Carilli and Tyler Cowen for helpful comments and suggestions. The financial support of the Critical Infrastructure Project, the Earhart Foundation and the Oloffson Weaver Fellowship is also gratefully acknowledged. 1

Peter T. Leeson; Christopher J. Coyne

2006-01-01T23:59:59.000Z

499

Economic effects of peak oil  

Science Journals Connector (OSTI)

Assuming that global oil production peaked, this paper uses scenario analysis to show the economic effects of a possible supply shortage and corresponding rise in oil prices in the next decade on different sectors in Germany and other major economies such as the US, Japan, China, the OPEC or Russia. Due to the price-inelasticity of oil demand the supply shortage leads to a sharp increase in oil prices in the second scenario, with high effects on GDP comparable to the magnitude of the global financial crises in 2008/09. Oil exporting countries benefit from high oil prices, whereas oil importing countries are negatively affected. Generally, the effects in the third scenario are significantly smaller than in the second, showing that energy efficiency measures and the switch to renewable energy sources decreases the countries' dependence on oil imports and hence reduces their vulnerability to oil price shocks on the world market.

Christian Lutz; Ulrike Lehr; Kirsten S. Wiebe

2012-01-01T23:59:59.000Z

500

PERI Green Economics | Open Energy Information  

Open Energy Info (EERE)

PERI Green Economics PERI Green Economics Jump to: navigation, search Tool Summary LAUNCH TOOL Name: PERI Green Economics Agency/Company /Organization: Political Economy Research Institute Sector: Energy Focus Area: Renewable Energy, Energy Efficiency, Buildings Phase: Create a Vision, "Evaluate Options and Determine Feasibility" is not in the list of possible values (Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan, Get Feedback, Develop Finance and Implement Projects, Create Early Successes, Evaluate Effectiveness and Revise as Needed) for this property., Prepare a Plan Resource Type: Publications, Lessons learned/best practices User Interface: Website Website: www.peri.umass.edu/green_economics0/