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Note: This page contains sample records for the topic "hvac upgrade cxs" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Effective, low-cost HVAC controls upgrade in a small bank building  

Science Conference Proceedings (OSTI)

This report summarizes the measured results from a field study of the performance of a low-cost controls retrofit in a small bank building in Knoxville, TN. The retrofit consisted of a simple upgrade of heating and cooling system controls and new operating strategies. The project was undertaken to better understand how commercial energy use measurement studies should be performed and to demonstrate the effectiveness of a low-cost controls retrofit in a small commercial building. This report describes the details of the project, including building and building system characteristics, the HVAC control changes made, energy end use patterns, and the heating and cooling energy savings achieved. An improved control strategy involving thermostat setback/setup and on/off control was devised around a single replacement programmable thermostat. The strategy allowed thermostat setback/setup control of the primary HVAC system in the building and provided on/off (time-of-day) control for the two secondary systems. The energy efficiency improvements provided a 33% reduction in heating and a 21% reduction in cooling energy consumptions. Simple payback for the retrofit, including installation cost, was under 1 year. In addition to reducing the energy needs of the building, the replacement electronic thermostat provided improved interior comfort. 9 refs., 12 figs., 3 tabs.

Sharp, T.R.; MacDonald, J.M.

1990-01-01T23:59:59.000Z

2

Chapter 4, Small Commercial and Residential Unitary and Split System HVAC Cooling Equipment-Efficiency Upgrade Evaluation Protocol: The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures  

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

4: Small Commercial 4: Small Commercial and Residential Unitary and Split System HVAC Cooling Equipment-Efficiency Upgrade Evaluation Protocol David Jacobson, Jacobson Energy Research Subcontract Report NREL/SR-7A30-53827 April 2013 The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures 4 - 1 Chapter 4 - Table of Contents 1 Measure Description .............................................................................................................. 2 2 Application Conditions of Protocol ....................................................................................... 3 2.1 Programs with Enhanced Measures ................................................................................. 5 3 Savings Calculations .............................................................................................................. 6

3

Renovating Residential HVAC Systems HVAC Systems  

E-Print Network (OSTI)

- 1 - LBNL 57406 Renovating Residential HVAC Systems HVAC Systems J.A. McWilliams and I.S. Walker and Air Conditioning), and Stacy Hunt and Ananda Harzell (IBACOS). #12;- 3 - Renovating Residential HVAC Guideline for Residential HVAC Retrofits (http

4

Building Energy Software Tools Directory : HVAC Solution  

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

HVAC Solution Back to Tool Screenshot for HVAC Solution. Screenshot for HVAC Solution. Screenshot for HVAC Solution...

5

HVAC Maintenance and Technologies  

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

HVAC - HVAC - Maintenance and Technologies Federal Utility Partnership Working Group Meeting Providence, Rhode Island April 15, 2010 BY Ramin Faramarzi, P.E. Technology Test Centers (TTC) Design and Engineering Services Southern California Edison (SCE) www.sce.com/rttc 2 Outline * Introduction to SCE's TTC * Overview of energy challenges in California (CA) * Role of HVAC in CA's energy and demand equations * Factors affecting HVAC performance * Focus on SCE's research on maintenance faults * Next generation of HVAC equipment * HVAC technologies on SCE's TTC radar * Black boxes - do they all work? 3 SCE's Technology Test Centers * SCE applied research facilities located in Irwindale, CA comprised of 3 test beds: * Refrigeration * HVAC * Lighting * Coming Soon! - A new ZNE lab 4 Refrigeration Testing

6

HVAC Installed Performance  

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

HVAC Installed Performance HVAC Installed Performance ESI, Tim Hanes Context * The building envelope has historically been the focus in residential homes. * The largest consumer of energy in residential homes is typically the HVAC system. * Testing the performance of the HVAC system has not been pursued to its full potential. Technical Approach * Currently very little performance testing is being done to the HVAC system. * The only way to know if a HVAC system is operating correctly is to measure the Btu/h. * This should be done at the equipment and at the the system. Recommended Guidance * Training of HVAC technicians, installers, and salespeople is a must. * If only the technician is trained than implementing the change will not happen. * Public awareness of proper installation and its

7

Multiple sensors with single HVAC system control  

E-Print Network (OSTI)

sensor; HVAC; control system; optimization; multi channeloptimization method is designed to be independent of the HVAC

Lin, Craig; Federspiel, Clifford; Auslander, David

2002-01-01T23:59:59.000Z

8

CALIFORNIA ENERGY Large HVAC Building  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Large HVAC Building Survey Information Database of Buildings over 100 Design of Large Commercial HVAC Systems research project, one of six research elements in the Integrated Design of Large Commercial HVAC Systems Integrated Design of Small Commercial HVAC Systems Integrated

9

BFRL: HVAC&R - Publications  

Science Conference Proceedings (OSTI)

HVAC&R Equipment Performance Group. Publications. Repeatability of Energy Consumption Test Results for Compact Refrigerators ...

10

Building America Expert Meeting Report: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors  

DOE Green Energy (OSTI)

This report outlines findings resulting from a U.S. Department of Energy Building America expert meeting to determine how HVAC companies can transition from a traditional contractor status to a service provider for whole house energy upgrade contracting. IBACOS has embarked upon a research effort under the Building America Program to understand business impacts and change management strategies for HVAC companies. HVAC companies can implement these strategies in order to quickly transition from a 'traditional' heating and cooling contractor to a service provider for whole house energy upgrade contracting. Due to HVAC service contracts, which allow repeat interaction with homeowners, HVAC companies are ideally positioned in the marketplace to resolve homeowner comfort issues through whole house energy upgrades. There are essentially two primary ways to define the routes of transition for an HVAC contractor taking on whole house performance contracting: (1) Sub-contracting out the shell repair/upgrade work; and (2) Integrating the shell repair/upgrade work into their existing business. IBACOS held an Expert Meeting on the topic of Transitioning Traditional HVAC Contractors to Whole House Performance Contractors on March 29, 2011 in San Francisco, CA. The major objectives of the meeting were to: Review and validate the general business models for traditional HVAC companies and whole house energy upgrade companies Review preliminary findings on the differences between the structure of traditional HVAC Companies and whole house energy upgrade companies Seek industry input on how to structure information so it is relevant and useful for traditional HVAC contractors who are transitioning to becoming whole house energy upgrade contractors Seven industry experts identified by IBACOS participated in the session along with one representative from the National Renewable Energy Laboratory (NREL). The objective of the meeting was to validate the general operational profile of an integrated whole house performance contracting company and identify the most significant challenges facing a traditional HVAC contractor looking to transition to a whole house performance contractor. To facilitate the discussion, IBACOS divided the business operations profile of a typical integrated whole house performance contracting company (one that performs both HVAC and shell repair/upgrade work) into seven Operational Areas with more detailed Business Functions and Work Activities falling under each high-level Operational Area. The expert panel was asked to review the operational profile or 'map' of the Business Functions. The specific Work Activities within the Business Functions identified as potential transition barriers were rated by the group relative to the value in IBACOS creating guidance ensuring a successful transition and the relative difficulty in executing.

Burdick, A.

2011-10-01T23:59:59.000Z

11

HVAC Maintenance and Technologies | Department of Energy  

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

HVAC Maintenance and Technologies HVAC Maintenance and Technologies Presentation covers the HVAC maintenance and technologies, and is given at the Spring 2010 Federal Utility...

12

Wireless Demand Response Controls for HVAC Systems  

E-Print Network (OSTI)

Response Controls for HVAC Systems Clifford Federspiel,tests. Figure 5: Specific HVAC electric power consumptioncontrol, demand response, HVAC, wireless Executive Summary

Federspiel, Clifford

2010-01-01T23:59:59.000Z

13

MAPPING HVAC SYSTEMS FOR SIMULATION IN ENERGYPLUS  

E-Print Network (OSTI)

LBNL-XXXXX MAPPING HVAC SYSTEMS FOR SIMULATION IN ENERGYPLUSof California. MAPPING HVAC SYSTEMS FOR SIMULATION INpresent a conventional view of HVAC systems to the user, and

Basarkar, Mangesh

2013-01-01T23:59:59.000Z

14

Measuring Advances in HVAC Distribution System Design  

E-Print Network (OSTI)

Gabel and Andresen, HVAC Secondary Toolkil. Atlanta: ASHRAE,P_02 Measuring Advances in HVAC Distribution System Designdesign and operation of the HVAC thermal distribution system

Franconi, E.

2011-01-01T23:59:59.000Z

15

HVAC Installed Performance  

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

This presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012, and addressed the question HVAC proper installation energy savings: over-promising or under-delivering?"

16

HVAC | OpenEI  

Open Energy Info (EERE)

HVAC HVAC Dataset Summary Description The following data-set is for a benchmark residential home for all TMY3 locations across all utilities in the US. The data is indexed by utility service provider which is described by its "unique" EIA ID ( Source National Renewable Energy Laboratory Date Released April 05th, 2012 (2 years ago) Date Updated April 06th, 2012 (2 years ago) Keywords AC apartment CFL coffeemaker Computer cooling cost demand Dishwasher Dryer Furnace gas HVAC Incandescent Laptop load Microwave model NREL Residential television tmy3 URDB Data text/csv icon Residential Cost Data for Common Household Items (csv, 14.5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Annually Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL)

17

BFRL: HVAC&R - Publications  

Science Conference Proceedings (OSTI)

HVAC&R Equipment Performance Group. Publications. Fundamental Aspects of the Application of Carbon Dioxide in Comfort Cooling. ...

18

VENTILATION (HVAC) FAILURE (BUILDING WIDE)  

E-Print Network (OSTI)

VENTILATION (HVAC) FAILURE (BUILDING WIDE) A failure or shutdown of the ventilation system will be signaled by cessation of the audible background "rumbling" sound of the building's HVAC system. As building durations. NOTE: Due to unpredictable pressure differentials in and around the labs during an HVAC failure

Strynadka, Natalie

19

Definition: HVAC | Open Energy Information  

Open Energy Info (EERE)

HVAC HVAC Jump to: navigation, search Dictionary.png HVAC An abbreviation for the heating, ventilation, and air-conditioning system; the system or systems that condition air in a building.[1] View on Wikipedia Wikipedia Definition HVAC is the technology of indoor and vehicular environmental comfort. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers). HVAC is important in the design of medium to large industrial and office buildings such as skyscrapers and in marine environments such as aquariums, where safe and

20

CALIFORNIA ENERGY Large HVAC Energy Impact Report  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Large HVAC Energy Impact Report Statewide Energy Impact Report are part of the Integrated Design of Large Commercial HVAC Systems research project. The reports: Productivity and Interior Environments Integrated Design of Large Commercial HVAC Systems Integrated Design

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

HVAC Sensors, Controls, and Human Feedback Interfaces  

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

HVAC Sensors, HVAC Sensors, Controls, and Human Controls, and Human Feedback Interfaces Feedback Interfaces April 26, 2010 Dr. Amr Gado Emerson Climate Technologies Heating And...

22

Building Technologies Office: Transitioning Traditional HVAC...  

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

Traditional HVAC Contractors to Whole House Performance Expert Meeting Building America hosted the "Transitioning Traditional HVAC Contractors to Whole House Performance...

23

Building Technologies Office: Transitioning Traditional HVAC...  

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

Transitioning Traditional HVAC Contractors to Whole House Performance Expert Meeting to someone by E-mail Share Building Technologies Office: Transitioning Traditional HVAC...

24

Measuring Outdoor Airflow into HVAC Systems  

E-Print Network (OSTI)

MEASURING OUTDOOR AIRFLOW INTO HVAC SYSTEMS W i l l i a m J.minimum OA flow rate if HVAC system has an economizer

Fisk, William J.; Faulkner, David; Sullivan, Douglas P.

2005-01-01T23:59:59.000Z

25

Building Energy Software Tools Directory: HVAC Solution  

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

design and specify HVAC equipment. Pick familiar objects like boilers, pumps, fan coils and air handlers and using drag and drop methods, connect them to form a HVAC...

26

HVAC Improvements for Existing Houses  

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

HVAC Improvements for Existing Houses HVAC Improvements for Existing Houses Speaker(s): Chryséis Bovagnet Date: September 5, 2002 - 12:00pm Location: Bldg. 90 Many older houses in the US are either not well designed from a thermal point of view or have HVAC (Heating Ventilation and Air Conditioning) systems in need of repairs or improvements. The building envelopes tend to have poor insulation and lots of leakage, and the HVAC systems are inefficient. The cooling/heating equipment is often located outside of the conditioned space (e.g. in attics or crawlspaces) with ducts that leak and have poor insulation, which cause energy loss and bad occupant comfort on peak days or in extreme climates. We developed a series of retrofits that will allow us to reduce the energy consumption of residential HVAC

27

Strategy Guideline: HVAC Equipment Sizing  

SciTech Connect

The heating, ventilation, and air conditioning (HVAC) system is arguably the most complex system installed in a house and is a substantial component of the total house energy use. A right-sized HVAC system will provide the desired occupant comfort and will run efficiently. This Strategy Guideline discusses the information needed to initially select the equipment for a properly designed HVAC system. Right-sizing of an HVAC system involves the selection of equipment and the design of the air distribution system to meet the accurate predicted heating and cooling loads of the house. Right-sizing the HVAC system begins with an accurate understanding of the heating and cooling loads on a space; however, a full HVAC design involves more than just the load estimate calculation - the load calculation is the first step of the iterative HVAC design procedure. This guide describes the equipment selection of a split system air conditioner and furnace for an example house in Chicago, IL as well as a heat pump system for an example house in Orlando, Florida. The required heating and cooling load information for the two example houses was developed in the Department of Energy Building America Strategy Guideline: Accurate Heating and Cooling Load Calculations.

Burdick, A.

2012-02-01T23:59:59.000Z

28

Porous insulation in HVAC systems  

Science Conference Proceedings (OSTI)

Porous insulation used to line the air stream surfaces of HVAC equipment provides a locus for the accumulation of dirt and debris. Dirt and debris are hydrophilic and the insulation on the air stream surfaces of mechanical cooling systems thus provides a niche for mold growth. The mold growing on porous insulation unlike moldy debris on a hard surface such as sheetmetal cannot be removed by duct cleaning. Actions for proactively preventing biocontamination of HVAC insulation include the following. (1) Porous insulation shall not be used to line the air stream surfaces of HVAC plenums where wetting is likely such as in the vicinity of cooling coils

Philip R. Morey

1995-01-01T23:59:59.000Z

29

Classroom HVAC: Improving ventilation and saving energy -- field study plan  

E-Print Network (OSTI)

in this study. Classroom HVAC: Improving Ventilation andV8doc.sas.com/sashtml. Classroom HVAC: Improving VentilationBerkeley, CA 94720. Classroom HVAC: Improving Ventilation

Apte, Michael G.; Faulkner, David; Hodgson, Alfred T.; Sullivan, Douglas P.

2004-01-01T23:59:59.000Z

30

Inverted Attic Bulkhead for HVAC Ductwork | Department of Energy  

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

Inverted Attic Bulkhead for HVAC Ductwork Inverted Attic Bulkhead for HVAC Ductwork Inverted Attic Bulkhead for HVAC Ductwork, Roseville, California (Fact Sheet), Building America...

31

HVAC component data modeling using industry foundation classes  

E-Print Network (OSTI)

HVAC Component Data Modeling Using Industry Foundationof a major extension of the HVAC part of the IFC data model.generic approach for handling HVAC components. This includes

Bazjanac, Vladimir; Forester, James; Haves, Philip; Sucic, Darko; Xu, Peng

2002-01-01T23:59:59.000Z

32

Co-simulation of innovative integrated HVAC systems in buildings  

E-Print Network (OSTI)

Integrated Simulation for HVAC Per- formance Prediction:air-conditioning equipment models (HVAC BESTEST), volume 1:air-conditioning equipment models (HVAC BESTEST), volume 2:

Trcka, Marija

2010-01-01T23:59:59.000Z

33

MODELING AND SIMULATION OF HVAC FAULTS IN ENERGYPLUS  

E-Print Network (OSTI)

Methodology for Secondary HVAC Systems, Doctoral Thesis,2002, Particulate Fouling of HVAC Heat Exchangers, Doctoraland diagnosis strategy for HVAC systems involving sensor

Basarkar, Mangesh

2013-01-01T23:59:59.000Z

34

Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems  

E-Print Network (OSTI)

in Fault Diagnostics for HVAC Systems Massieh Najafi 1 ,tools for determining HVAC diagnostics, methods todetect faults in HVAC systems are still generally

Najafi, Massieh

2010-01-01T23:59:59.000Z

35

Fault Detection and Diagnosis in Building HVAC Systems  

E-Print Network (OSTI)

Wright, “Condition monitoring in HVAC subsystems using firstmonitoring packaged HVAC equipment. ASHRAE Transactions”,Detection and Diagnosis of HVAC Systems Using Support Vector

Najafi, Massieh

2010-01-01T23:59:59.000Z

36

Building Energy Software Tools Directory : HVAC Residential Load...  

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

HVAC Residential Load Calcs HD for the iPad Back to Tool HVAC Residential Load Calcs HD screenshot HVAC Residential Load Calcs HD screenshot HVAC Residential Load Calcs HD...

37

Ameren Illinois (Electric) - Custom, HVAC, and Motor Business...  

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

Custom, HVAC, and Motor Business Efficiency Incentives Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency Incentives Eligibility Commercial Industrial...

38

Building HVAC Requirements Overview Page 4-1 4 Building HVAC Requirements  

E-Print Network (OSTI)

Building HVAC Requirements ­ Overview Page 4-1 4 Building HVAC Requirements 4.1 Overview 4 conditioning (HVAC) systems. The requirements are presented in this chapter so that it may serve as a single. 2008 Residential Compliance Manual August 2009 #12;Page 4-2 Building HVAC Requirements ­ Overview 4

39

Development Practice in HVAC Controls  

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

Development Practice in HVAC Controls Development Practice in HVAC Controls Speaker(s): John Zhou Date: April 11, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Philip Haves The presentation will introduce development tools and design considerations used in HVAC controls development. Controls development use simulation, lab testing and field trial at different phases of the project cycle to improve control performance and to achieve rapid development. Development starts with simulation to originate and define algorithm concept. The concept is then implemented in a prototype controller, and tested in lab environment. The concept is refined and verified by analyzing lab results. In the final phase of development, controllers with refined and verified algorithms are installed in field trial sites to ensure system integration and to confirm

40

Grundfos HVAC OEM Efficient water hydraulics  

E-Print Network (OSTI)

Grundfos HVAC OEM Efficient water hydraulics for Heat Pumps Anders Mønsted GRUNDFOS Holding A/S Group Technical Key Account Manager HVAC OEM Project Management http://net.grundfos.com/doc/webnet/hv acoem/index.htmlOEM online #12;Introduction Grundfos Company Grundfos HVAC OEM Current Circulator Range

Oak Ridge National Laboratory

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Energirigtige pumpekoblinger i HVAC-systemer  

E-Print Network (OSTI)

Energirigtige pumpekoblinger i HVAC-systemer PSO 2003 - FORSKNING & UDVIKLING I EFFEKTIV energieffektive HVAC-aggregater #12;InformationomProjektnr.:335-021 PROCESSEN: Projektet er gennemført af en reguleringsprincipper, mens Exhausto har leveret HVAC-aggregat og knowhow inden for klimasystemer. Grundfos

42

MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS  

E-Print Network (OSTI)

LBNL-49339 MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS J.A. Siegel1,3 * and W.W. Nazaroff2 Department of Energy under contract DE-AC03-76SF00098. #12;MODELING PARTICLE DEPOSITION ON HVAC HEAT, such as discontinuities in the fins, are hypothesized to be responsible for the discrepancy. INDEX TERMS HVAC, Fouling

43

CALIFORNIA ENERGY Small HVAC Database Of Monitored  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Small HVAC Database Of Monitored Information Database of Compiled of the Integrated Design of Small Commercial HVAC Systems research project. The reports are a result of funding: Productivity and Interior Environments Integrated Design of Large Commercial HVAC Systems Integrated Design

44

CALIFORNIA ENERGY Small HVAC System Design Guide  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Small HVAC System Design Guide DESIGNGUIDELINES October 2003 500;#12;Small HVAC System Design Guide Acknowledgements i Acknowledgements The products and outcomes presented; Darren Goody, PECI, Design Guide review. #12;Small HVAC System Design Guide Preface ii Preface The Small

45

SIMULATION OF RESIDENTIAL HVAC SYSTEM PERFORMANCE  

E-Print Network (OSTI)

1 LBNL-47622 SIMULATION OF RESIDENTIAL HVAC SYSTEM PERFORMANCE Walker, I., Siegel, J ..................................................... 9 #12;3 ABSTRACT In many parts of North America residential HVAC systems are installed outside of the simulations is that they are dynamic - which accounts for cyclic losses from the HVAC system and the effect

46

PROJECT REPORT HVAC EQUIPMENT DEMOGRAPHICS AND CAPACITY  

E-Print Network (OSTI)

PROJECT REPORT HVAC EQUIPMENT DEMOGRAPHICS AND CAPACITY ANALYSIS TOOLS APPLICABLE TO MULTI Commercial HVAC Design Process 12 5.0 Conclusion 18 6.0 References 19 TABLE OF CONTENTS SECTIONS #12;MULTI performance by collectively improving the enve- lope, lighting and HVAC systems. The primary goals of the UC

California at Davis, University of

47

CALIFORNIA ENERGY Small HVAC Problems and Potential  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Small HVAC Problems and Potential Savings Reports Summary of Problems of the Integrated Design of Small Commercial HVAC Systems research project. The reports are a result of funding: Productivity and Interior Environments Integrated Design of Large Commercial HVAC Systems Integrated Design

48

Software tools for HVAC research  

Science Conference Proceedings (OSTI)

Energy saving methods can be employed to reduce energy consumption in buildings, or improve indoor thermal conditions. An example of those methods is the use of permeable coverings, but there are other important parameters like thermal inertia. To understand ... Keywords: Building, Computer, Design, Energy saving, HVAC, Software tools

José A. Orosa; Armando C. Oliveira

2011-10-01T23:59:59.000Z

49

HVAC upgrade saving money, protecting history | Department of...  

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

A new heating and cooling system at Chester County Historical Society's history center is saving the organization about 27,500 a year. | Photo Courtesy of CCHS Paul Lester...

50

Energy Renovations: Volume 14: HVAC - A Guide for Contractors to Share with Homeowners  

SciTech Connect

This report was prepared by PNNL for DOE's Building America program and is intended as a guide that energy performance contractors can share with homeowners to describe various energy-efficient options for heating, cooling, and ventilating existing homes. The report provides descriptions of many common and not-so-common HVAC systems, including their advantages and disadvantages, efficiency ranges and characteristics of high-performance models, typical costs, and climate considerations. The report also provides decision trees and tables of useful information for homeowners who are making decisions about adding, replacing, or upgrading existing HVAC equipment in their homes. Information regarding home energy performance assessments (audits) and combustion safety issues when replacing HVAC equipment are also provided.

Gilbride, Theresa L.; Baechler, Michael C.; Hefty, Marye G.; Hand, James R.; Love, Pat M.

2011-08-29T23:59:59.000Z

51

STATE OF CALIFORNIA CERTIFICATE OF COMPLIANCE, PRESCRIPTIVE HVAC ALTERATIONS  

E-Print Network (OSTI)

STATE OF CALIFORNIA CERTIFICATE OF COMPLIANCE, PRESCRIPTIVE HVAC ALTERATIONS CEC-MECH-1C-ALT-HVAC (Revised 07/10) CALIFORNIA ENERGY COMMISSION CERTIFICATE OF COMPLIANCE MECH-1C-ALT-HVAC Prescriptive HVAC Steps" column below. Note: After installation of HVAC units and/or ducts, the Installation

52

Empirical Methodologies for Improving HVAC Efficiency  

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

Empirical Methodologies for Improving HVAC Efficiency Empirical Methodologies for Improving HVAC Efficiency Speaker(s): Anil Aswani Date: September 21, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Michael Wetter This talk describes the use of empirical methodologies that we have developed for the purpose of improving heating, ventilation, and air-conditioning (HVAC) efficiency through better control algorithms and configuration. We show that semiparametric regression can both identify simplified models of thermal HVAC dynamics while also estimating time-varying heating loads using only real-time temperature measurements from thermostats. These models can be used with our learning-based model predictive control (LBMPC) method in order to improve the energy-efficiency of HVAC. Experiments on testbeds with different types of HVAC show the

53

HVAC Technician | Princeton Plasma Physics Lab  

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

HVAC Technician HVAC Technician Department: Facilities Supervisor(s): Tom Ward Staff: L&S 07 Requisition Number: 1300884 Under the supervision of the General Lead Technician and Lead HVAC Technician, the incumbent will be responsible for the installation, preventative maintenance, troubleshooting and repair of various HVAC and refrigeration equipment; local HVAC control systems and ancillary support equipment; and will work with other groups within the Division and throughout the Laboratory to ensure long-term, safe and efficient operation of HVAC and refrigeration systems. All tasks must be completed in a timely, cost efficient manner, support on-going sustainability initiatives and energy efficiency programs at the Laboratory. The incumbent is expected to utilize thorough theoretical knowledge and techniques to accomplish

54

Wireless Temperature Sensors for Improved HVAC Control  

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

reliable, and affordable and affordable Wireless Temperature Sensors for Improved HVAC Control An assessment of wireless sensor technology Executive Summary This Technology...

55

Modeling and Identification for HVAC Systems.  

E-Print Network (OSTI)

??Heating, Ventilation and Air Conditioning (HVAC) systems consist of all the equipment that control the conditions and distribution of indoor air. Indoor air must be… (more)

Scotton, Francesco

2012-01-01T23:59:59.000Z

56

HVAC Testing, Adjusting, and Balancing Guideline  

Science Conference Proceedings (OSTI)

This report provides practical guidelines that can be used by power plant personnel to diagnose and troubleshoot heating, ventilating, and air conditioning (HVAC) system and component performance problems.

2001-10-24T23:59:59.000Z

57

Columbia Water & Light- Residential HVAC Rebate Program  

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

Columbia Water & Light (CWL) provides an HVAC incentive for residential customers that are replacing an older heating and cooling system. Customers should submit the mechanical permit from a...

58

Energy Efficiency Upgrades  

Science Conference Proceedings (OSTI)

The energy efficiency upgrades project at Hardin County General Hospital did not include research nor was it a demonstration project. The project enabled the hospital to replace outdated systems with modern efficient models. Hardin County General Hospital is a 501c3, nonprofit hospital and the sole community provider for Hardin and Pope Counties of Illinois. This project provided much needed equipment and facility upgrades that would not have been possible through locally generated funding. Task 1 was a reroofing of the hospital. The hospital architect designed the replacement to increase the energy efficiency of the hospital roof/ceiling structure. Task 2 was replacement and installation of a new more efficient CT scanner for the hospital. Included in the project was replacement of HVAC equipment for the entire radiological suite. Task 5 was a replacement and installation of a new higher capacity diesel-fueled emergency generator for the hospital replacing a 50+ year old gas-fired generator. Task 7 was the replacement of 50+ year-old walk-in cooler/freezer with a newer, energy efficient model. Task 8 was the replacement of 10+ year-old washing machines in the hospital laundry with higher capacity, energy efficient models. Task 9 was replacement of 50-year old single pane curtain window system with double-pane insulated windows. Additionally, insulation was added around ventilation systems and the curtain wall system.

Roby Williams

2012-03-29T23:59:59.000Z

59

Particulate Fouling of HVAC Heat Exchangers Jeffrey Alexander Siegel  

E-Print Network (OSTI)

Particulate Fouling of HVAC Heat Exchangers by Jeffrey Alexander Siegel B.S. (Swarthmore College.......................................................................................xv CHAPTER 1: PARTICULATE FOULING OF HVAC HEAT EXCHANGERS ....1 1.1 Introduction.......................................................................11 CHAPTER 2: MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS

Siegel, Jeffrey

60

Building Energy Software Tools Directory: HVAC Residential Load...  

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

HVAC Residential Load Calcs HD for the iPad Carmel Software logo HVAC Residential Load Calcs HD is a comprehensive HVAC heating and cooling load calculation application for the...

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Compression effects on pressure loss in flexible HVAC ducts  

E-Print Network (OSTI)

to Determine Flow Resistance of HVAC Air Ducts and Fittings.Pressure Loss in Flexible HVAC Ducts Bass Abushakra, Ph.D.to Determine Flow Resistance of HVAC Air Ducts and Fittings.

Abushakra, Bass; Walker, Iain S.; Sherman, Max H.

2002-01-01T23:59:59.000Z

62

Fouling of HVAC fin and tube heat exchangers  

E-Print Network (OSTI)

air ? air ? part ? part FPI HVAC REFERENCES Anonymous, 1987,LBNL-47668 Fouling of HVAC Fin and Tube Heat ExchangersCIEE SPONSOR. FOULING OF HVAC FIN AND TUBE HEAT EXCHANGERS

Siegel, Jeffrey; Carey, Van P.

2001-01-01T23:59:59.000Z

63

Measuring rates of outdoor airflow into HVAC systems  

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

Measuring rates of outdoor airflow into HVAC systems Title Measuring rates of outdoor airflow into HVAC systems Publication Type Journal Article LBNL Report Number LBNL-51583 Year...

64

Report on HVAC Option Selections for a Relocatable Classroom...  

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

Report on HVAC Option Selections for a Relocatable Classroom Energy and Indoor Environmental Quality Field Study Title Report on HVAC Option Selections for a Relocatable Classroom...

65

HVAC Water Heater Field Tests Research Project | Department of...  

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

HVAC Water Heater Field Tests Research Project HVAC Water Heater Field Tests Research Project The U.S. Department of Energy is currently conducting research into heating,...

66

Modeling and Simulation of HVAC Faulty Operations and Performance...  

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

Modeling and Simulation of HVAC Faulty Operations and Performance Degradation due to Maintenance Issues Title Modeling and Simulation of HVAC Faulty Operations and Performance...

67

HVAC system study: a data-driven approach.  

E-Print Network (OSTI)

?? The energy consumed by heating, ventilating, and air conditioning (HVAC) systems has increased in the past two decades. Thus, improving efficiency of HVAC systems… (more)

Xu, Guanglin

2012-01-01T23:59:59.000Z

68

Improving Relocatable Classroom HVAC For Improved IEQ And Energy...  

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

Improving Relocatable Classroom HVAC For Improved IEQ And Energy Efficiency Title Improving Relocatable Classroom HVAC For Improved IEQ And Energy Efficiency Publication Type...

69

DOE Convening Report on Certification of Commercial HVAC and...  

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

Convening Report on Certification of Commercial HVAC and CRE Products DOE Convening Report on Certification of Commercial HVAC and CRE Products This document is the convening...

70

Ventilation, temperature, and HVAC characteristics in small and...  

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

Ventilation, temperature, and HVAC characteristics in small and medium commercial buildings in California Title Ventilation, temperature, and HVAC characteristics in small and...

71

Ameren Illinois (Electric) - Custom, HVAC, and Motor Business...  

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

Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency Incentives Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency Incentives < Back...

72

System-Level Monitoring and Diagnosis of Building HVAC System.  

E-Print Network (OSTI)

??Heating, ventilation, and air conditioning (HVAC) is an indoor environmental technology that is extensively instrumented for large-scale buildings. Among all subsystems of buildings, the HVAC… (more)

Wu, Siyu

2013-01-01T23:59:59.000Z

73

Monitoring-based HVAC Commissioning of an Existing Office Building...  

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

Monitoring-based HVAC Commissioning of an Existing Office Building for Energy Efficiency Title Monitoring-based HVAC Commissioning of an Existing Office Building for Energy...

74

Chapter 5: Lighting, HVAC, and Plumbing | Department of Energy  

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

5: Lighting, HVAC, and Plumbing Chapter 5: Lighting, HVAC, and Plumbing Chapter 5 of the LANL Sustainable Design Guide with guidelines for developing sustainable, healthy,...

75

Comparison of Building Energy Modeling Programs: HVAC Systems  

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

Modeling Programs: HVAC Systems Title Comparison of Building Energy Modeling Programs: HVAC Systems Publication Type Report LBNL Report Number LBNL-6432E Year of Publication 2013...

76

Modeling and simulation of HVAC faults in EnergyPlus  

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

simulation of HVAC faults in EnergyPlus Title Modeling and simulation of HVAC faults in EnergyPlus Publication Type Conference Paper Refereed Designation Refereed Year of...

77

New and Underutilized Technology: HVAC Occupancy Sensors | Department...  

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

HVAC Occupancy Sensors New and Underutilized Technology: HVAC Occupancy Sensors October 4, 2013 - 4:20pm Addthis The following information outlines key deployment considerations...

78

Luminaire/plenum/HVAC simulator  

SciTech Connect

This paper describes a new apparatus designed to model the physical parameters that affect fluorescent lamp performance under realistic operating conditions. These parameters include fixture type, mounting configuration, HVAC integration, and room air temperature, which directly determine the minimum lamp wall temperature (MLWT) and, therefore, the resulting light output of the lamp/ballast system. This apparatus is used principally to measure MLWT under operating conditions, which enables us to identify the effects the major parameters have on lamp/ballast system performance. Initial parametric results illustrate the use of this apparatus to provide representative MLWTs for a range of application conditions.

Siminovitch, M.J.; Rubinstein, F.M.; Clark, T.A.; Verderber, R.R.

1985-07-01T23:59:59.000Z

79

Commercial Building HVAC: How it Affects People  

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

Commercial Building HVAC: How it Affects People Commercial Building HVAC: How it Affects People Speaker(s): William Fisk Date: November 13, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: David Faulkner Commercial building heating, ventilating, and air conditioning (HVAC) systems are designed primarily to maintain a reasonable level of thermal comfort while limiting first costs and energy consumption. However, research conducted predominately within the last decade suggests that commercial building HVAC significantly influences human outcomes other than thermal comfort, including the health, satisfaction, and work performance of the building's occupants. This presentation will review the relationships of these outcomes with HVAC system type, filtration system efficiency, indoor air temperature, and outside air ventilation rate.

80

Residential HVAC Indoor Air Quality(ASHRAE 62.2)  

E-Print Network (OSTI)

Residential HVAC && Indoor Air Quality(ASHRAE 62.2) Tav Commins #12;Contact Information · Energy construction, Additions /Alterations · Nonresidential and Residential #12;Residential HVAC && Indoor Air Quality(ASHRAE 62.2) ·HVAC EfficiencyHVAC Efficiency ·Quality Installation (HERS Measures) S li b HERS R t

Note: This page contains sample records for the topic "hvac upgrade cxs" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


81

Cooling and Dehumidification HVAC Technology for 1990s  

E-Print Network (OSTI)

Desiccant Cooling and Dehumidification HVAC Technology for 1990s HVAC: Heating, Ventilation Research Trusts SERI #12;Challenges Facing HVAC Industry in 1990's * Reduction of CFCs * Indoor air quality to solve the problems of the HVAC industry faced in1990's for space conditioning. SERI #12;l- = m mN a- mg

Oak Ridge National Laboratory

82

2013 Energy Code Changes That Effect the HVAC  

E-Print Network (OSTI)

2013 Energy Code Changes That Effect the HVAC Industry Tav Commins Mechanical Engineer California Energy Commission #12;HVAC Mandatory Measures For All Newly Installed Residential HVAC Systems (New Watt Draw at .58 W/CFM, or (return duct and filter sizing) MERV 6 Filter #12;Residential HVAC Measures

California at Davis, University of

83

CALIFORNIA ENERGY Large HVAC Field and Baseline Data  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION Large HVAC Field and Baseline Data Field Data Collection: Site Survey of the Integrated Design of Large Commercial HVAC Systems research project. The reports are a result of funding Design of Large Commercial HVAC Systems Integrated Design of Small Commercial HVAC Systems Integrated

84

Optimization Control Strategies for HVAC Terminal Boxes  

E-Print Network (OSTI)

The HVAC terminal boxes are one of the major building HVAC components. They directly impact the building room comfort conditions and the energy costs. How to operate the box in a highly energy efficient way and maintain the room comfort level is an important topic in today's building energy management and HVAC control field. The authors developed novel optimized control strategies and operation schedules for the terminal boxes for both occupied and non-occupied hours. The optimized control schedules were implemented in a medical complex during the commissioning. This not only improved the building comfort conditions but also reduced the energy costs.

Zhu, Y.; Batten, T.; Noboa, H.; Claridge, D. E.; Turner, W. D.; Liu, M.; Zhou, J.; Cameron, C.; Keeble, D.; Hirchak, R.

2000-01-01T23:59:59.000Z

85

Salsbury and Diamond: Automated Testing of HVAC Systems for Commissioning -1 -Automated Testing of HVAC Systems for Commissioning  

E-Print Network (OSTI)

and Diamond: Automated Testing of HVAC Systems for Commissioning - 1 - Automated Testing of HVAC Systems This paper describes an approach to the automation of the commissioning of HVAC systems. The approach of many HVAC systems is limited more by poor installation, commissioning, and maintenance than by poor

86

Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Drive Chillers  

E-Print Network (OSTI)

resource/24/ ASHRAE handbook – HVAC systems and equipments.Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Efficient Cleanrooms Efficient HVAC Water Systems: Variable-

Xu, Tengfang

2005-01-01T23:59:59.000Z

87

Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.  

E-Print Network (OSTI)

from Ozone Reaction with HVAC Filters Hugo Destaillats,from Ozone Reaction with HVAC Filters Hugo Destaillatsfrom Ozone Reaction with HVAC Filters Hugo Destaillats

Destaillats, Hugo

2012-01-01T23:59:59.000Z

88

Case study field evaluation of a systems approach to retrofitting a residential HVAC system  

E-Print Network (OSTI)

Practices for Residential HVAC Systems”. Boston, MA. Jump,techniques for measuring HVAC grille air flows". ASHRAEPractices Guide for Residential HVAC Retrofits. LBNL 53592.

Walker, Iain S.; McWiliams, Jennifer A.; Konopacki, Steven J.

2003-01-01T23:59:59.000Z

89

Home Energy Article: A Systems Approach to Retrofitting Residential HVAC Systems  

E-Print Network (OSTI)

to Retrofitting a Residential HVAC System, Lawrence Berkeleyducts. New downsized ducts and HVAC equipment. The ducts areto Retrofitting Residential HVAC Systems J.A. McWilliams and

McWilliams, Jennifer A.; Walker, Iain S.

2005-01-01T23:59:59.000Z

90

Model Predictive Control of HVAC Systems: Implementation and Testing at the University of California, Merced  

E-Print Network (OSTI)

Model Predictive Control of HVAC Systems:    Implementation and  air  conditioning  (HVAC)  account  for  27%  of  the reduction potential of HVAC systems with  active thermal 

Haves, Phillip

2010-01-01T23:59:59.000Z

91

An implementation of co-simulation for performance prediction of innovative integrated HVAC systems in buildings  

E-Print Network (OSTI)

and Judkoff, R. 2002. IEA HVAC BESTEST volume 1, Technicaland Judkoff, R. 2004. IEA HVAC BESTEST volume 2, TechnicalOF INNOVATIVE INTEGRATED HVAC SYSTEMS IN BUILDINGS Marija

Trcka, Marija

2010-01-01T23:59:59.000Z

92

Comparisons of HVAC Simulations between EnergyPlus and DOE-2.2 for Data Centers  

E-Print Network (OSTI)

ABORATORY Comparisons of HVAC Simulations between EnergyPlusemployer. Comparisons of HVAC Simulations between EnergyPlusThis paper compares HVAC simulations between EnergyPlus and

Hong, Tianzhen

2009-01-01T23:59:59.000Z

93

Improving Indoor Environmental Quality And Energy Performance Of Modular Classroom HVAC Systems  

E-Print Network (OSTI)

Schools (CHPS). 2002. "HVAC Best Practices Manual." CHPSOF MODULAR CLASSROOM HVAC SYSTEMS Michael G. APTE Ph.D. MPHRelocatable Classroom HVAC for Improved IEQ and Energy

Apte, Michael G.; Spears, Michael; Lai, Chi-Ming; Shendell, Derek G.

2005-01-01T23:59:59.000Z

94

Investigation of IAQ-Relevant Surface Chemistry and Emissions on HVAC Filter Materials  

E-Print Network (OSTI)

VOCs emitted by reactions of HVAC filters with ozone usingChemistry and Emissions on HVAC Filter Materials HugoChemistry and Emissions on HVAC Filter Materials Authors:

Destaillats, Hugo

2010-01-01T23:59:59.000Z

95

HVAC Modeling for Cost of Ownership Assessment in Biotechnology & Drugs Manufacturing  

E-Print Network (OSTI)

2000 Broomes, Peter. , “HVAC Modeling for Cost of Ownership2000 Broomes, Peter. , “HVAC Results Comparison”, April,HVAC Modeling for Cost of Ownership Assessment in

Broomes, Peter; Dornfeld, David A

2003-01-01T23:59:59.000Z

96

HVAC Equipment Rebate Program | Department of Energy  

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

HVAC Equipment Rebate Program HVAC Equipment Rebate Program HVAC Equipment Rebate Program < Back Eligibility Agricultural Commercial Industrial Installer/Contractor Institutional Multi-Family Residential Nonprofit Schools Savings Category Heating & Cooling Commercial Heating & Cooling Heating Cooling Heat Pumps Maximum Rebate Rebates of greater than $5,000 require pre-approval Program Info Funding Source Efficiency Vermont Public Benefit Fund Expiration Date 06/30/2013 State Vermont Program Type State Rebate Program Rebate Amount Varies depending on technology and efficiency Provider Efficiency Vermont NOTE: Rebate reservations are required for all boiler and furnace projects. Efficiency Vermont offers rebates for commercial installations of high-efficiency HVAC equipment and controls. For businesses and purchases

97

BS-8: HVAC Modeling and Simulation  

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

BS-8: HVAC Modeling and Simulation BS-8: HVAC Modeling and Simulation Speaker(s): Darko Sucic Date: December 5, 2001 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Satkartar K. Kinney Industry Foundation Classes (IFC), an object data model of buildings, are being developed by the International Alliance for Interoperability (IAI) to support data sharing and exchange in the building and construction industry. The IAI, founded in 1995, has published four releases of IFC so far. Several prototype implementations by leading software companies show that commercial IFC software is beginning to meet end user expectations of interoperability in the industry. BS-8 is an LBNL project that started last summer. It is developing the IFC HVAC extension schemata that will extend the IFC object data model and support the exchange of HVAC information

98

HVAC Energy Recovery Design and Economic Evaluation  

E-Print Network (OSTI)

ENRECO has prepared this paper on HVAC energy recovery to provide the engineer with an overview of the design engineering as well as the economic analysis considerations necessary to evaluate the potential benefits of energy recovery.

Kinnier, R. J.

1979-01-01T23:59:59.000Z

99

Modeling and optimization of building HVAC systems.  

E-Print Network (OSTI)

??This thesis presents the development of hybrid modeling methodologies for HVAC component static/steady-state models and dynamic/transient models, and the development and implementation of a model-based… (more)

Jin, Guang Yu.

2012-01-01T23:59:59.000Z

100

Wireless Demand Response Controls for HVAC  

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

Wireless Demand Response Controls for HVAC Speaker(s): Clifford Federspiel Date: June 22, 2006 - 12:00pm Location: 90-3148 Seminar HostPoint of Contact: Richard Diamond Peng Xu We...

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


101

Modeling particle deposition on HVAC heat exchangers  

E-Print Network (OSTI)

DEPOSITION ON HVAC HEAT EXCHANGERS JA Siegel 1,3 * and WWof fin-and-tube heat exchangers by particle deposition leadsparticle deposition on heat exchanger surfaces. We present a

Siegel, J.A.; Nazaroff, W.W.

2002-01-01T23:59:59.000Z

102

HVAC Fans and Dampers Maintenance Guide  

Science Conference Proceedings (OSTI)

Heating, ventilation, and air conditioning (HVAC) systems serve an important function in nuclear power plants because these systems are responsible for maintaining many environmental conditions throughout the facility. Failure of these components can induce undesirable radiological conditions and stressful working conditions, and can compromise the life of qualified equipment. Some HVAC fan and damper failures are preventable by monitoring operating parameters and performing recommended maintenance activ...

1999-08-26T23:59:59.000Z

103

Building Technologies Office: HVAC Optimized Heat Exchangers Research  

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

Optimized Heat Optimized Heat Exchangers Research Project to someone by E-mail Share Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Facebook Tweet about Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Twitter Bookmark Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Google Bookmark Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Delicious Rank Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on Digg Find More places to share Building Technologies Office: HVAC Optimized Heat Exchangers Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research

104

Building Technologies Office: HVAC and Water Heater Field Tests Research  

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

HVAC and Water Heater HVAC and Water Heater Field Tests Research Project to someone by E-mail Share Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Facebook Tweet about Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Twitter Bookmark Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Google Bookmark Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Delicious Rank Building Technologies Office: HVAC and Water Heater Field Tests Research Project on Digg Find More places to share Building Technologies Office: HVAC and Water Heater Field Tests Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research

105

Building Technologies Office: Recovery Act-Funded HVAC Research Projects  

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

HVAC Research Projects to someone by E-mail HVAC Research Projects to someone by E-mail Share Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Facebook Tweet about Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Twitter Bookmark Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Google Bookmark Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Delicious Rank Building Technologies Office: Recovery Act-Funded HVAC Research Projects on Digg Find More places to share Building Technologies Office: Recovery Act-Funded HVAC Research Projects on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research Windows, Skylights, & Doors Research Space Heating & Cooling Research

106

Mapping Hvac Systems for Simulation In EnergyPlus  

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

Mapping Hvac Systems for Simulation In EnergyPlus Title Mapping Hvac Systems for Simulation In EnergyPlus Publication Type Conference Paper LBNL Report Number LBNL-5565E Year of...

107

Recovery Act-Funded HVAC projects | Department of Energy  

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

HVAC projects Recovery Act-Funded HVAC projects The U.S. Department of Energy was allocated funding from the American Recovery and Reinvestment Act to conduct research into...

108

Issue #3: HVAC Proper Installation Energy Savings: Over-Promising...  

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

3: HVAC Proper Installation Energy Savings: Over-Promising or Under-Delivering? Issue 3: HVAC Proper Installation Energy Savings: Over-Promising or Under-Delivering? What energy...

109

Modeling and simulation of HVAC Results in EnergyPlus  

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

Modeling and simulation of HVAC Results in EnergyPlus Title Modeling and simulation of HVAC Results in EnergyPlus Publication Type Journal Article LBNL Report Number LBNL-5564E...

110

Decentralized nonlinear adaptive control of an HVAC system  

Science Conference Proceedings (OSTI)

This paper presents a new decentralized nonlinear adaptive controller (DNAC) for a heating, ventilating, and air conditioning (HVAC) system capable of maintaining comfortable conditions under varying thermal loads. In this scheme, an HVAC system is considered ...

Zhang Huaguang; Lilong Cai

2002-11-01T23:59:59.000Z

111

Fouling of HVAC fin and tube heat exchangers  

E-Print Network (OSTI)

Methods to Maintain Heat Exchanger Coil Cleanliness, ASHRAEof HVAC Fin and Tube Heat Exchangers Jeffrey Siegel and VanOF HVAC FIN AND TUBE HEAT EXCHANGERS Jeffrey Siegel 1,2 and

Siegel, Jeffrey; Carey, Van P.

2001-01-01T23:59:59.000Z

112

Chapter 5: Lighting, HVAC, and Plumbing  

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

: Lighting, : Lighting, HVAC, and Plumbing High-Performance Engineering Design Lighting System Design Mechanical System Design Central Plant Systems Plumbing and Water Use Building Control Systems Electrical Power Systems Metering LANL | Chapter 5 High-Performance Engineering Design Lighting, HVAC, and Plumbing By now, the building envelope serves multiple roles. It protects the occupants from changing weather condi- tions and it plays a key part in meeting the occupants' comfort needs. The heating, ventilating, air-conditioning, and lighting (HVAC&L) systems complement the archi- tectural design, govern the building's operation and maintenance costs, and shape the building's long-term environmental impact. The architectural design maximizes the potential for a high-performance building, but it is the

113

Simulation and Optimization of HVAC Systems  

E-Print Network (OSTI)

We developed a mathematical model of a simple Heating, Ventilation and Air Conditioning (HVAC) system and implemented the model using the VisSim simulation language. We used Fourier methods to approximate (and simplify) temperature and humidity data for the model. We created an objective function to be minimized which recorded the cost of running this HVAC system. We studied different methods for minimizing the cost function, including direct search methods using VisSim and completed preliminary studies of a Dynamic Programming programming approach to simplify the optimization problem. ii Contents 0 Executive Summary 1 1 Introduction 2 2 Evaluation of Simulation Packages 3 3 Simple Room Model for an HVAC System 5 3.1 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2 Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.3 Splitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.4 Mixer . . . ....

Ane Coughlin; George D. Ellington; Ellen Phifer; Brian Rieksts

1998-01-01T23:59:59.000Z

114

Indoor Air Quality Impacts of Residential HVAC Systems ...  

Science Conference Proceedings (OSTI)

Page 1. NISTIR 5559 Indoor Air Quality Impacts of Residential HVAC Systems Phase 11.AReport: Baseline and Preliminary Simulations ...

1997-09-03T23:59:59.000Z

115

A PDI for your HVAC System  

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

8/3/2012 Technical Approach Develop a PDI for HVAC PDI focus is on Inspecting Installation - a $10 Chinese sweatshop t-shirt gets a QA/QC sticker, why not a $10k HVAC system? Develop & require diagnostics that confirm good installations: - Air flow, duct leakage, refrigerant charge, delivered temperatures, system pressures, filter requirements, fan power, noise - On board diagnostics (OBD) for flow, pressures, fan power, charge Make it a warranty requirement, code requirement, permit requirement, etc. Recommended Guidance Develop the PDI checklist and label (include target and system test results) - External Tests: duct leaks - Internal Tests: OBD for system pressures, air flow, charge, fan power - Labels: Certify tight equipment

116

HVAC Room Temperature Prediction Control Based on Neural Network Model  

Science Conference Proceedings (OSTI)

HVAC (Heating Ventilating &Air-conditioning) system is a nonlinear complex system with delay. It is very difficult to build a mathematical model of HVAC and implement model-based control. Since a BP (Back Propagation) neural network can fully approximate ... Keywords: BP neural network, predictive control, HVAC, least squares method

Shujiang Li, Shuang Ren, Xiangdong Wang

2013-01-01T23:59:59.000Z

117

Handover Performance of HVAC Duct Based Indoor Wireless Networks  

E-Print Network (OSTI)

Handover Performance of HVAC Duct Based Indoor Wireless Networks A. E. Xhafa, P. Sonthikorn, and O in indoor wireless net- works (IWN) that use heating, ventilation, and air conditioning (HVAC) ducts.e., new call blocking and handover dropping probabilities, of an IWN that uses HVAC ducts are up to 6

Stancil, Daniel D.

118

Monitoring-based HVAC Commissioning of an Existing Office  

E-Print Network (OSTI)

LBNL-5940E Monitoring-based HVAC Commissioning of an Existing Office Building for Energy Efficiency thereof or The Regents of the University of California. #12;1 Monitoring-based HVAC Commissioning@lbl.gov, Tel: 1-510-486-4921 Abstract The performance of Heating, Ventilation and Air Conditioning (HVAC

119

Utilizing Passive Ventilation to Complement HVAC Systems in Enclosed Buildings  

E-Print Network (OSTI)

Utilizing Passive Ventilation to Complement HVAC Systems in Enclosed Buildings Tom Rogg REU Student to assist HVAC has the potential to significantly reduce life cycle cost and energy consumption and electrical system that will tie thermostats to controlled valves in the actual HVAC system. Based on results

Mountziaris, T. J.

120

Long Range Passive UHF RFID System Using HVAC Ducts  

E-Print Network (OSTI)

INVITED P A P E R Long Range Passive UHF RFID System Using HVAC Ducts To provide a potential communications channel, HVAC ducts can function as electromagnetic waveguides; a 30-m read range has been-conditioning (HVAC) ducts as a potential communication channel between passive ultrahigh-frequency (UHF) radio

Hochberg, Michael

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Atmospheric Environment 41 (2007) 31513160 Ozone removal by HVAC filters  

E-Print Network (OSTI)

Atmospheric Environment 41 (2007) 3151­3160 Ozone removal by HVAC filters P. Zhao, J.A. Siegel�, R May 2006; accepted 14 June 2006 Abstract Residential and commercial HVAC filters that have been loaded of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial

Siegel, Jeffrey

122

An update on acoustics designs for HVAC (Engineering) K. Marriott  

E-Print Network (OSTI)

An update on acoustics designs for HVAC (Engineering) K. Marriott IOA, 29a Ashburton Road, Croydon and Air Conditioning (HVAC) engineer is to engineer ways for keeping these factors under control the HVAC engineer's environmental requirements while minimizing noise generated in the process considering

Paris-Sud XI, Université de

123

Deposition of Biological Aerosols on HVAC Heat Exchangers  

E-Print Network (OSTI)

LBNL-47669 Deposition of Biological Aerosols on HVAC Heat Exchangers Jeffrey Siegel and Iain Walker of Biological Aerosols on HVAC Heat Exchangers Jeffrey A. Siegel Iain S. Walker, Ph.D. ASHRAE Student Member that are found in commercial and residential HVAC systems of 1 - 6 m/s (200 - 1200 ft/min), particle diameters

124

MATERIALS AND INFORMATION FLOWS FOR HVAC DUCTWORK FABRICATION AND SITE  

E-Print Network (OSTI)

MATERIALS AND INFORMATION FLOWS FOR HVAC DUCTWORK FABRICATION AND SITE INSTALLATION Matt Holzemer,1, and air-conditioning (HVAC) systems requires a set of complex activities and handoffs between multiple architecture-, engineering-, and construction practitioners. This paper highlights one part of the HVAC

Tommelein, Iris D.

125

Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor -Global  

E-Print Network (OSTI)

PENNSTATE Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor - Global Overview The purpose of this project is to develop a heating, ventilation, and air conditioning (HVAC) monitoring a residential, forced flow, multi-zone HVAC filter needs to be replaced, and then alerts the users

Demirel, Melik C.

126

SMUD's HVAC Programs Ravi Patel-Program Planning  

E-Print Network (OSTI)

1 SMUD's HVAC Programs 5-7-13 Ravi Patel- Program Planning Bruce Baccei- R&D #12;SMUD's Residential contractors trained and BPI certified ­ Majority were pushing only HVAC; now driving the HPP · Program encourages more HVAC replacements to occur through HPP ­ Move away from stand alone programs ­ Start

California at Davis, University of

127

Continued on next page A letter explaining the 2005 HVAC  

E-Print Network (OSTI)

Continued on next page A letter explaining the 2005 HVAC Change-out to consumers is available this bulletin, or downloaded from the 2005 HVAC Change out Information website at: www.energy.ca.gov/title24 duct sealing requirements for HVAC change-outs in existing homes become effective October 1, 2005

128

Proceedings: Indoor Air 2005 OZONE REMOVAL BY RESIDENTIAL HVAC FILTERS  

E-Print Network (OSTI)

Proceedings: Indoor Air 2005 2366 OZONE REMOVAL BY RESIDENTIAL HVAC FILTERS P Zhao1,2 , JA Siegel1, Austin, Texas 78758, USA ABSTRACT HVAC filters have a significant influence on indoor air quality% for Filter #2 at a face velocity of 0.81 cm/s. The potential for HVAC filters to affect ozone concentrations

Siegel, Jeffrey

129

Occupancy Based Demand Response HVAC Control Strategy Varick L. Erickson  

E-Print Network (OSTI)

proposes an HVAC control strategy based on occupancy prediction and real time occupancy monitoring via simulation model. We dis- cuss the building parameters and the HVAC control strate- gies used for the energyOccupancy Based Demand Response HVAC Control Strategy Varick L. Erickson University of California

Cerpa, Alberto E.

130

Occupancy based demand response HVAC control strategy  

Science Conference Proceedings (OSTI)

Heating, cooling and ventilation accounts for 30% energy usage and for 50% of the electricity usage in the United States. Currently, most modern buildings still condition rooms assuming maximum occupancy rather than actual usage. As a result, rooms are ... Keywords: HVAC, demand response, energy savings, occupancy, ventilation

Varick L. Erickson; Alberto E. Cerpa

2010-11-01T23:59:59.000Z

131

Randomized Model Predictive Control for HVAC Systems  

Science Conference Proceedings (OSTI)

Heating, Ventilation and Air Conditioning (HVAC) systems play a fundamental role in maintaining acceptable thermal comfort and Indoor Air Quality (IAQ) levels, essentials for occupants well-being. Since performing this task implies high energy requirements, ... Keywords: Copulas, Learning, Randomized Model Predictive Control, Smart Buildings, Sustainable Control Systems

Alessandra Parisio, Damiano Varagnolo, Daniel Risberg, Giorgio Pattarello, Marco Molinari, Karl H. Johansson

2013-11-01T23:59:59.000Z

132

Real-Time Measurement of Rates of Outdoor Airflow into HVAC Systems: A Field Study of Three Technologies  

E-Print Network (OSTI)

to determine flow resistance of HVAC ducts and fittings.W. 2003. Outdoor airflow into HVAC systems: an evaluation ofof outdoor airflow into HVAC systems. Lawrence Berkeley

Fisk, William J.; Sullivan, Douglas P.; Faulkner, David

2005-01-01T23:59:59.000Z

133

HVAC Efficiency Controls Could Mean Significant Savings | Department of  

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

HVAC Efficiency Controls Could Mean Significant Savings HVAC Efficiency Controls Could Mean Significant Savings HVAC Efficiency Controls Could Mean Significant Savings April 27, 2012 - 11:58am Addthis HVAC Efficiency Controls Could Mean Significant Savings April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs What does this mean for me? Commercial building owners could save an average 38% on their heating & cooling bills just by installing a few new controls onto their HVAC systems. According to a new report from Pacific Northwest National Lab, commercial building owners could save an average 38 percent on their heating and cooling bills just by installing a few new controls onto their HVAC systems. These findings mean significant potential savings for building owners who use commercial rooftop systems - but there's just one problem: the

134

Applications of HVAC System Utilizing Building Thermal Mass in Japan  

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

Applications of HVAC System Utilizing Building Thermal Mass in Japan Applications of HVAC System Utilizing Building Thermal Mass in Japan Speaker(s): Katsuhiro Miura Date: January 27, 2012 - 10:00am Location: 90-3122 Seminar Host/Point of Contact: Michael Wetter Buildings have a large thermal capacity and it affects much on building thermal load for the HVAC system. The thermal mass can be utilized also to control the thermal load by storing thermal energy before HVAC operation. There are two ways to store thermal energy. One is by operating the HVAC system and the other is by natural ventilation, mainly at night. The latter could be combined with daily HVAC operation as a hybrid ventilation. Thermal mass storage is useful to decrease the hourly peak load and the daily thermal load and can be used for both cooling and heating purpose.

135

Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger  

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

Radial Air Bearing Radial Air Bearing Heat Exchanger Research Project to someone by E-mail Share Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Facebook Tweet about Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Twitter Bookmark Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Google Bookmark Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Delicious Rank Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on Digg Find More places to share Building Technologies Office: HVAC Radial Air Bearing Heat Exchanger Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE

136

Recharge Elec. Upgrade Type  

E-Print Network (OSTI)

battery can be plugged in to an electric outlet to be recharged. Background: PHEVs 1. How many U" cost) · Variety of upgrade packages selected--some with zero upgrades · Most popular upgrade" Price Scenario ("home recharges" only) · "Base" PHEV=$3,000 premium · Added costs for upgrades (Full

California at Davis, University of

137

A systems approach to retrofitting residential HVAC systems  

E-Print Network (OSTI)

HVAC System. LBNL 53444. Wendt, R.L. , Ternes, M.P. , O’realized. Other guides (e.g. , Wendt et al. (1997)) are more

McWilliams, J.A.; Walker, I.S.

2004-01-01T23:59:59.000Z

138

Pedernales Electric Cooperative - HVAC Rebate Program | Department of  

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

Pedernales Electric Cooperative - HVAC Rebate Program Pedernales Electric Cooperative - HVAC Rebate Program Pedernales Electric Cooperative - HVAC Rebate Program < Back Eligibility Commercial Residential Commercial Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Program Info State Texas Program Type Utility Rebate Program Utility Rebate Program Rebate Amount Central AC with Gas Furnace: $300 - $400/unit Heat Pump: $400 - $500/unit Dual-Fuel Heat Pump: $400 - $500/unit Geothermal Heat Pump: $1,000/unit Water-Source Heat Pump: $1,000/unit Provider Pedernales Electric Cooperative Pedernales Electric Cooperative offers equipment rebates to members who install energy efficient HVAC equipment. Eligible equipment includes:

139

Columbia Water & Light- HVAC and Lighting Efficiency Rebates  

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

Columbia Water & Light (CWL) offers rebates to its commercial and industrial customers for the purchase of high efficiency HVAC installations and efficient lighting. Incentives for certain...

140

Algoritmi per la previsione del carico in applicazioni HVAC.  

E-Print Network (OSTI)

??Il lavoro si pone come obiettivo l’applicazione di metodi e algoritmi per la previsione del carico in sistemi HVAC (Heating, Ventilating and Air Conditioning). La… (more)

Simmini, Francesco

2010-01-01T23:59:59.000Z

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


141

Fault Detection and Diagnosis in Building HVAC Systems.  

E-Print Network (OSTI)

??Building HVAC systems account for more than 30% of annual energy consumption in United States. However, it has become apparent that only in a small… (more)

Najafi, Massieh

2010-01-01T23:59:59.000Z

142

New developments in noise control for HVAC systems.  

Science Conference Proceedings (OSTI)

The HVAC equipment industry is not known for rapid change. Although control systems have improved rapidly over the past few years

Timothy J. Foulkes

1996-01-01T23:59:59.000Z

143

The impact of filter loading on residential hvac performance.  

E-Print Network (OSTI)

??Buildings are the primary user of energy in the USA. Within homes, the heating, ventilation, and air condition (HVAC) system is the largest energy consumer.… (more)

Kruger, Abraham J.

2013-01-01T23:59:59.000Z

144

System Optimization - The Global Approach to HVAC Control  

E-Print Network (OSTI)

System Optimization is a new approach to HVAC control as implemented by Energy Management Control Systems. System Optimization is defined as electronic building control strategies which treat a building's HVAC components as a complete energy-efficient and coordinated system. Trends in the development of HVAC control strategies are briefly discussed. An example which differentiates between conventional and System Optimization approaches is used to illustrate this new approach. The example discusses aspects of cooling season operation for a typical HVAC system. The paper concludes with four basic principles of System Optimization which are essential for effective control of a building environment.

Thielman, D. E.

1984-01-01T23:59:59.000Z

145

Deposition of biological aerosols on HVAC heat exchangers  

E-Print Network (OSTI)

Methods to Maintain Heat Exchanger Coil Cleanliness. ASHRAEEngineering Foundation on Heat Exchanger Fouling, UnitedAerosols on HVAC Heat Exchangers Jeffrey Siegel and Iain

Siegel, Jeffrey; Walker, Iain

2001-01-01T23:59:59.000Z

146

Deposition of biological aerosols on HVAC heat exchangers  

E-Print Network (OSTI)

Methods to Maintain Heat Exchanger Coil Cleanliness. ASHRAEEngineering Foundation on Heat Exchanger Fouling, Unitedof HVAC Fin and Tube Heat Exchangers, To be published in the

Siegel, Jeffrey; Walker, Iain

2001-01-01T23:59:59.000Z

147

NREL Delivers In-Home HVAC Efficiency Testing Solutions (Fact...  

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

Delivers In-Home HVAC Efficiency Testing Solutions Researchers at the National Renewable Energy Laboratory (NREL) have recently developed two simple in-home efficiency test methods...

148

IFC HVAC interface to EnergyPlus - A case of expanded interoperability for energy simulation  

E-Print Network (OSTI)

D. Sucic and P. Xu. 2002. HVAC Component Data Modeling Using2001. BS-8 project: IFC HVAC extension schemata. http://IFC HVAC INTERFACE TO ENERGYPLUS – A CASE OF EXPANDED

Bazjanac, Vladimir; Maile, Tobias

2004-01-01T23:59:59.000Z

149

Uncertainties in Achieving Energy Savings from HVAC Maintenance Measures in the Field  

E-Print Network (OSTI)

Uncertainties in Achieving Energy Savings from HVAC Maintenance Measures in the Field Kristin Group, Davis, CA, USA 4 Southern California Edison, Irwindale, CA, USA ABSTRACT HVAC maintenance utilities across the nation to include HVAC maintenance measures in energy efficiency programs

California at Davis, University of

150

Analysis of a hybrid UFAD and radiant hydronic slab HVAC system  

E-Print Network (OSTI)

Air- Conditioning Engineers HVAC & R Research, vol. 50, Sep.and radiant hydronic slab HVAC system.   Paul RAFTERY a,* ,of a novel integrated HVAC system. This system combines an

Raftery, Paul; Lee, Kwang Ho; Webster, Thomas; Bauman, Fred

2011-01-01T23:59:59.000Z

151

Report on HVAC option selections for a relocatable classroom energy and indoor environmental quality field study  

E-Print Network (OSTI)

LBNL- 49026 Report on HVAC Option Selections for aTable 3. High performance HVAC system filter selectionDrop ("H 2 O) Appendix A – RC HVAC working drawings. Figure

2001-01-01T23:59:59.000Z

152

SIMULATION AND EXPERIMENTAL VALIDATION OF AIRBORNE AND STRUCTURE-BORNE NOISE TRANSMISSION IN HVAC PLENUMS.  

E-Print Network (OSTI)

??This research demonstrates the usage of numerical acoustics to model sound and vibrational energy propagation in HVAC ducts and plenums. Noise and vibration in HVAC… (more)

Ramalingam, Srinivasan

2012-01-01T23:59:59.000Z

153

Kentucky Power- Residential Efficient HVAC Rebate Program  

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

Kentucky Power's High Efficiency Heat Pump Program offers a $400 rebate to residential customers living in existing (site-built) homes who upgrade electric resistance heating systems with a new,...

154

Reliability and Functional Availability of HVAC Systems  

E-Print Network (OSTI)

This paper presents a model to calculate the reliability and availability of heating, ventilation and air conditioning systems. The reliability is expressed in the terms of reliability, maintainability and decision capability. These terms are a function of the mean time between failure, mean time to repair and decision time. The availability is expressed as an operational and functional availability of the systems. These terms are a function of both the technical and human characteristics to maintain the systems in correct operational state. The result is based on a large amount data from operational organisations, the compulsory inspection of ventilation systems and momentary and continuous measurements made in HVAC-systems.

Myrefelt, S.

2004-01-01T23:59:59.000Z

155

Lighting/HVAC interactions and their effects on annual and peak HVAC requirements in commercial buildings  

SciTech Connect

Lighting measures is one effective strategy for reducing energy use in commercial buildings. Reductions in lighting energy have secondary effects on cooling/heating energy consumption and peak HVAC requirements; in general, they increase the heating and decrease cooling requirements of a building. Net change in a building`s annual and peak energy requirements, however, is difficult to quantify and depends on building characteristics, operating conditions, climate. This paper characterizes impacts of lighting/HVAC interactions on annual and peak heating/cooling requirements of prototypical US commercial buildings through computer simulations using DOE-2.1E building energy analysis program. Ten building types of two vintages and nine climates are chosen to represent the US commercial building stock. For each combination, a prototypical building is simulated with two lighting power densities, and resultant changes in heating and cooling loads are recorded. Simple concepts of Lighting Coincidence Factors are used to describe the observed interactions between lighting and HVAC requirements. (Coincidence Factor (CF) is ratio of changes in HVAC loads to those in lighting loads, where load is either annual or peak load). The paper presents tables of lighting CF for major building types and climates. These parameters can be used for regional or national cost/benefit analyses of lighting- related policies and utility DSM programs. Using Annual CFs and typical efficiencies for heating and cooling systems, net changes in space conditioning energy use from a lighting measure can be calculated. Similarly, Demand CFs can be used to estimate the changes in HVAC sizing, which can then be converted to changes in capital outlay using standard-design curves; or they can be used to estimate coincident peak reductions for the analysis of the utility`s avoided costs. Results from use of these tables are meaningful only when they involve a significantly large number of buildings.

Sezgen, A.O.; Huang, Y.J.

1994-08-01T23:59:59.000Z

156

The Application of Ultraviolet Germicidal Technology in HVAC Systems  

E-Print Network (OSTI)

One of the most significant issues for today's HVAC (Heating, Ventilation, and Air Conditioning) engineer is Indoor Air Quality (IAQ). Many building owners, operators, and occupants complain of foul odors emanating from HVAC systems. The objectionable odor is the byproduct of the microbial growth (mold and fungus) that accumulates and develops on wet surfaces of HVAC units, causing foul odors to emanate from affected systems and degrading the IAQ and unit performance. This objectionable odor has been appropriately named the "Dirty Sock" syndrome. Less obvious to the building occupants, but of equal importance, are the physical effects the microbial organisms have on HVAC equipment. They restrict the airflow and limit the heat transfer capability, which increases the operating costs of the equipment. Fortunately, IAQ degradation, foul odor, and increased expenses can be eliminated with the installation of the ultraviolet 'C' band (W-C) lamps. The ultraviolet germicidal lamps are designed to kill odor causing mold and fungus that grow in wet evaporator sections of HVAC units. These lamps are installed inside HVAC systems and irradiate areas inhabited by the offending organisms, making it impossible for them to survive. The organisms disappear, the odors disappear, and most importantly, the IAQ complaints disappear. This guide will discuss the microbial growth and IAQ contaminant problems in the HVAC industry, the W-C lamp and other possible solutions, and the benefits of using the HVAC Duty W-C lamp.

Taylor, M. J.

2000-01-01T23:59:59.000Z

157

Industrial HVAC Air-to-Air Energy Recovery Retrofit Economics  

E-Print Network (OSTI)

Retrofitting air-to-air energy recovery equipment is relatively simply to design and easy to install. Additionally, HVAC energy recovery is almost risk free when compared to process retrofit. Life cycle cost analysis is the best way to illustrate the economic attractiveness of retrofitting HVAC industrial energy recovery equipment.

Graham, E. L.

1980-01-01T23:59:59.000Z

158

Theoretical Minimum Energy Use of a Building HVAC System  

E-Print Network (OSTI)

This paper investigates the theoretical minimum energy use required by the HVAC system in a particular code compliant office building. This limit might be viewed as the "Carnot Efficiency" for HVAC system. It assumes that all ventilation and air conditioning in the building are provided using the minimum energy value that does not violate physical law.

Tanskyi, O.

2011-01-01T23:59:59.000Z

159

HVAC & Building Management Control System Energy Efficiency Replacements  

SciTech Connect

The project objective was the replacement of an aging, un-repairable HVAC system which has grown inefficient and a huge energy consumer with low energy and efficient HVAC units, and installation of energy efficient building control technologies at City's YMCA Community Center.

Hernandez, Adriana

2012-09-21T23:59:59.000Z

160

Columbia Water and Light - HVAC and Lighting Efficiency Rebates |  

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

Columbia Water and Light - HVAC and Lighting Efficiency Rebates Columbia Water and Light - HVAC and Lighting Efficiency Rebates Columbia Water and Light - HVAC and Lighting Efficiency Rebates < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Lighting: 50% of invoiced cost up to $22,500 Program Info State Missouri Program Type Utility Rebate Program Rebate Amount HVAC Replacements: $570 - $3,770 Lighting: $300/kW reduction or half of project cost Provider Columbia Water and Light Columbia Water and Light (CWL) offers rebates to its commercial and industrial customers for the purchase of high efficiency HVAC installations and efficient lighting. Incentives for certain measures are based upon the

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Building Energy Software Tools Directory: HVAC 1 Toolkit  

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

HVAC 1 Toolkit HVAC 1 Toolkit HVAC 1 Toolkit logo. The Toolkit for Primary HVAC System Energy Calculations is a collection of thirty-eight separate subroutines and corresponding documentation that describes algorithms for predicting the performance of HVAC components. The Toolkit documentation includes thorough descriptions of the component models and solution algorithms, detailed information on the structure of the individual FORTRAN 77 routines, as well as illustrative examples of system simulations with the Toolkit routines. The Toolkit serves two purposes: modules for large-scale simulation and stand-alone component performance prediction. The Toolkit components can also be used to calculate the energy performance of a component with a dedicated driver program to provide the necessary information flow to the Toolkit routines.

162

A Fault Detection and Diagnosis Method for HVAC Systems  

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

A Fault Detection and Diagnosis Method for HVAC Systems A Fault Detection and Diagnosis Method for HVAC Systems Speaker(s): Peng Xu Date: December 2, 2002 - 12:00pm Location: Bldg. 90 There is a growing consensus that most buildings do not perform as well as intended and that faults in HVAC systems are widespread in commercial buildings. An automated fault detection and diagnosis tool for HVAC systems is being developed, based on an integrated, life-cycle, approach to commissioning and performance monitoring. The tool uses component-level HVAC equipment models implemented in the SPARK equation-based simulation environment. The models are configured using design information and component manufacturers' data and then fine-tuned to match the actual performance of the equipment by using data measured during functional tests

163

Interdisciplinary Innovation and Vision in the HVAC  

E-Print Network (OSTI)

High energy costs in buildings are forcing the building owners, developers, fund and facility managers to find alternate energy efficiency methods while improving the indoor air quality and thus the comfort level of the room occupants. High potentials for optimizing costs can be found in the HVAC systems when calculated over the total Life-Cycle-Cost (LCC) of a building incorporating planning through to facility management. This requires an accurate plan specifying an efficient technical operating method with optimized energy cost efficiency and comfort for the room occupants. In turn, the plan should be considered in any bidding process. Multisensory equipment is an integral part of the LCC concept and should not be underestimated in its impact on energy efficiency. The possibility of customizing the requirements of the room occupants should be included in each specification of a building/room automation system. The following case study will explain how modern sensory systems can be used for investment and energy savings in various HVAC system.

Hecker, T.

2008-01-01T23:59:59.000Z

164

Simulation of residential HVAC system performance  

SciTech Connect

In many parts of North America residential HVAC systems are installed outside conditioned space. This leads to significant energy losses and poor occupant comfort due to conduction and air leakage losses from the air distribution ducts. In addition, cooling equipment performance is sensitive to air flow and refrigerant charge that have been found to be far from manufacturers specifications in most systems. The simulation techniques discussed in this paper were developed in an effort to provide guidance on the savings potentials and comfort gains that can be achieved by improving ducts (sealing air leaks) and equipment (correct air-flow and refrigerant charge). The simulations include the complex air flow and thermal interactions between duct systems, their surroundings and the conditioned space. They also include cooling equipment response to air flow and refrigerant charge effects. Another key aspect of the simulations is that they are dynamic--which accounts for cyclic losses from the HVAC system and the effect of cycle length on energy and comfort performance.

Walker, I.S.; Siegel, J.A.; Degenetais, G.

2001-05-01T23:59:59.000Z

165

Energy Efficiency Upgrades for Little Rock Air Force Base  

DOE Green Energy (OSTI)

Little Rock Air Force Base (LRAFB), in partnership with the local utility, Entergy Services, Inc., has reduced energy costs and used savings from investments in high-efficiency equipment to maintain and improve the condition of base housing and other facilities. Three projects were completed, with over $10 million invested. Major accomplishments include replacing air-to-air heat pumps with high-efficiency ground-source heat pumps (GSHPs) in more than 1,500 base housing units, lighting modifications to 10 buildings, upgrade of HVAC equipment in the base's enlisted club, and energy-efficient lighting retrofits for LRAFB's flight simulator.

Goldman, C.; Dunlap, M.A.

2000-11-13T23:59:59.000Z

166

Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems Massieh Najafi1  

E-Print Network (OSTI)

Modeling and Measurement Constraints in Fault Diagnostics for HVAC Systems Massieh Najafi1 , David for determining HVAC diagnostics, methods to detect faults in HVAC systems are still generally undeveloped. Most in a substantial increase in energy use. For example, failure of an HVAC fan may prevent cool air from one

167

The influence of HVAC systems on secondary organic aerosol formation Michael S. Waring1  

E-Print Network (OSTI)

The influence of HVAC systems on secondary organic aerosol formation Michael S. Waring1 , Jeffrey A, ventilation, and air- conditioning (HVAC) system. This study models the influence of HVAC systems on SOA. The most influential HVAC parameters are the flow rates, particle filtration, and indoor temperature

Siegel, Jeffrey

168

Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Drive Chillers  

E-Print Network (OSTI)

LBNL-58636 Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable Efficient Cleanrooms Efficient HVAC Water Systems: Variable-Speed-Drive Chillers Tengfang Xu Contents HVAC.................................................................................................................................... 6 #12;HVAC Water Systems Variable-Speed-Drive Chillers Summary Cleanroom energy benchmarking data

169

A multi-sensor based occupancy estimation model for supporting demand driven HVAC operations  

Science Conference Proceedings (OSTI)

Heating, ventilation, and air conditioning (HVAC) is a major energy consumer in buildings, and implementing demand driven HVAC operations is a way to reduce HVAC related energy consumption. This relies on the availability of occupancy information, which ... Keywords: HVAC, building energy consumption, demand driven, non-intrusive sensor, occupancy estimation

Zheng Yang; Nan Li; Burcin Becerik-Gerber; Michael Orosz

2012-03-01T23:59:59.000Z

170

Classroom HVAC: Improving ventilation and saving energy -- field study plan  

SciTech Connect

The primary goals of this research effort are to develop, evaluate, and demonstrate a very practical HVAC system for classrooms that consistently provides classrooms (CRs) with the quantity of ventilation in current minimum standards, while saving energy, and reducing HVAC-related noise levels. This research is motivated by the public benefits of energy efficiency, evidence that many CRs are under-ventilated, and public concerns about indoor environmental quality in CRs. This document provides a summary of the detailed plans developed for the field study that will take place in 2005 to evaluate the energy and IAQ performance of a new classroom HVAC technology. The field study will include measurements of HVAC energy use, ventilation rates, and IEQ conditions in 10 classrooms with the new HVAC technology and in six control classrooms with a standard HVAC system. Energy use and many IEQ parameters will be monitored continuously, while other IEQ measurements will be will be performed seasonally. Continuously monitored data will be remotely accessed via a LonWorks network. Instrument calibration plans that vary with the type of instrumentation used are established. Statistical tests will be employed to compare energy use and IEQ conditions with the new and standard HVAC systems. Strengths of this study plan include the collection of real time data for a full school year, the use of high quality instrumentation, the incorporation of many quality control measures, and the extensive collaborations with industry that limit costs to the sponsors.

Apte, Michael G.; Faulkner, David; Hodgson, Alfred T.; Sullivan, Douglas P.

2004-10-14T23:59:59.000Z

171

Self-Correcting HVAC Controls Project Final Report  

SciTech Connect

This document represents the final project report for the Self-Correcting Heating, Ventilating and Air-Conditioning (HVAC) Controls Project jointly funded by Bonneville Power Administration (BPA) and the U.S. Department of Energy (DOE) Building Technologies Program (BTP). The project, initiated in October 2008, focused on exploratory initial development of self-correcting controls for selected HVAC components in air handlers. This report, along with the companion report documenting the algorithms developed, Self-Correcting HVAC Controls: Algorithms for Sensors and Dampers in Air-Handling Units (Fernandez et al. 2009), document the work performed and results of this project.

Fernandez, Nicholas; Brambley, Michael R.; Katipamula, Srinivas; Cho, Heejin; Goddard, James K.; Dinh, Liem H.

2010-01-04T23:59:59.000Z

172

Unusual HVAC challenges require innovative solutions  

SciTech Connect

There were many reasons behind Motorola`s decision to build the first 225,000 sq ft of a planned one million sq ft manufacturing facility in Chihuahua, Mexico. Among these were the availability of skilled labor in the area, lower construction costs, some export tax advantages, and the close proximity to the US border. The new facility is made up of a variety of functional areas that together create an impressively efficient plant. Phase 1 construction included a large manufacturing floor, shipping and receiving areas, a bulk storage facility, and a large office area with a view of the factory floor. The structure also houses a retail store where Motorola consumer products are sold, a conference and banquet center, a commercial kitchen, and dining facilities for 750. The design cooling load is 750 tons; the heating load is 4.5 million Btuh. The paper discusses the challenging location, the HVAC system, and the future expansion planned.

Jardine, G.M.; Gwin, O.D. [Heery International, Inc., Atlanta, GA (United States)

1998-02-01T23:59:59.000Z

173

SURFACE INDUSTRIAL HVAC SYSTEM DESCRIPTION DOCUMENT  

SciTech Connect

The purpose of this system description document (SDD) is to establish requirements that drive the design of the surface industrial heating, ventilation, and air-conditioning (HVAC) system and its bases to allow the design effort to proceed to license application. This SDD will be revised at strategic points as the design matures. This SDD identifies the requirements and describes the system design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This SDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This SDD is part of an iterative design process. It leads the design process with regard to the flowdown of upper tier requirements onto the system. Knowledge of these requirements is essential to performing the design process. The SDD follows the design with regard to the description of the system. The description that provided in this SDD reflects the current results of the design process.

M.M. Ansari

2005-04-05T23:59:59.000Z

174

HVAC system analysis: energy audit review  

SciTech Connect

Although most energy audits do not investigate HVAC systems in as much detail as would most design consultants, audit data can be most informative. For certain types of buildings, air-conditioning energy usage can be estimated by its absence from energy bills during winter months, and heating energy usage can be estimated by its absence from energy bills during the summer months. Cooling and heating energy usage can be even more accurately broken down when a fossil fuel is used for heating while electrical energy is used for cooling. It is easy to establish fairly accurate energy consumption estimates for lighting, fan motors, and pumps; this can be done by verifying their loads and multiplying them by known operating hours. The numerous notes contained in some energy audits may also provide ideas for retrofitting energy-consuming areas.

Harmon, K.S.

1983-01-01T23:59:59.000Z

175

Distributed Control of HVAC&R Networks  

E-Print Network (OSTI)

Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems are a major component of worldwide energy consumption, and frequently consist of complex networks of interconnected components. The ubiquitous nature of these systems suggests that improvements in their energy efficiency characteristics can have significant impact on global energy consumption. The complexity of the systems, however, means that decentralized control schemes will not always suffice to balance competing goals of energy efficiency and occupant comfort and safety. This dissertation proposes control solutions for three facets of this problem. The first is a cascaded control architecture for actuators, such as electronic expansion valves, that provides excellent disturbance rejection and setpoint tracking characteristics, as well as partial nonlinearity compensation without a compensation model. The second solution is a hierarchical control architecture for multiple-evaporator vapor compression systems that uses model predictive control (MPC) at both the supervisory and component levels. The controllers leverage the characteristics of MPC to balance energy efficiency with occupant comfort. Since the local controllers are decentralized, the architecture retains a degree of modularity—changing one component does not require changing all controllers. The final contribution is a new distributed optimization algorithm that is rooted in distributed MPC and is especially motivated by HVAC&R systems. This algorithm allows local level optimizers to iterate to a centralized solution. The optimizers have no knowledge of any plant other than the plant they are associated with, and only need to communicate with their immediate neighbors. The efficacy of the algorithm is displayed with two sets of examples. One example is simulation based, wherein a building is modeled in the EnergyPlus software suite. The other is an experimental example. In this example, the algorithm is applied to a multiple evaporator vapor compression system. In both cases the design method is discussed, and the ability of the algorithm to reduce energy consumption when properly applied is demonstrated.

Elliott, Matthew Stuart

2013-08-01T23:59:59.000Z

176

Co-simulation for performance prediction of integrated building and HVAC systems - An analysis of solution characteristics using a two-body system  

E-Print Network (OSTI)

of innovative integrated HVAC systems in buildings, infor building envelope and HVAC systems simu- lation - WillIntegrated simulation for HVAC performance prediction: State

Trcka, Marija

2010-01-01T23:59:59.000Z

177

Fault Detection and Diagnosis in Building HVAC Systems  

E-Print Network (OSTI)

techniques for model-based FDD methods applied to vapordetection and diagnosis (FDD) has been an active area for6-17]. In building HVAC systems, FDD has received increasing

Najafi, Massieh

2010-01-01T23:59:59.000Z

178

Connexus Energy - Residential Efficient HVAC Rebate Program | Department of  

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

Connexus Energy - Residential Efficient HVAC Rebate Program Connexus Energy - Residential Efficient HVAC Rebate Program Connexus Energy - Residential Efficient HVAC Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Heat Pumps Program Info Expiration Date 12/31/2013 State Minnesota Program Type Utility Rebate Program Rebate Amount Air Source Heat Pumps: $480 - $630 Ductless Heat Pump: $150 Geothermal Heat Pump: $200/ton Provider Connexus Energy Connexus Energy offers rebates for residential customers to improve the energy efficiency of homes. Rebates are available for air source heat pumps, ductless heat pumps and ground-source heat pumps. Equipment must meet all efficiency standards listed on the web site, and must be installed by a certified HVAC contractor. Contact Connexus Energy for other program

179

Strategy Guideline: Transitioning HVAC Companies to Whole House Performance Contractors  

Science Conference Proceedings (OSTI)

This report describes the findings from research IBACOS conducted related to heating, ventilation, and air conditioning (HVAC) companies who have made the decision to transition to whole house performance contracting (WHPC).

Burdick, A.

2012-05-01T23:59:59.000Z

180

Direct Digital Control for Building HVAC Systems, 2nd edition  

Science Conference Proceedings (OSTI)

From the Publisher:Direct Digital Control for Building HVAC Systems, Second Edition, is thoroughly updated and expanded to include complete coverage of the architecture of modern digital control systems, distributed intelligence networked systems, communication ...

Michael J. L. Coffin

1998-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Review of Residential Low-Load HVAC Systems  

SciTech Connect

In support of the U.S. Department of Energy’s (DOE’s) Building America Program, Pacific Northwest National Laboratory (PNNL) conducted an investigation to inventory commercially available HVAC technologies that are being installed in low-load homes. The first step in this investigation was to conduct a review of published literature to identify low-load HVAC technologies available in the United States and abroad, and document the findings of existing case studies that have evaluated the performance of the identified technologies. This report presents the findings of the literature review, identifies gaps in the literature or technical understanding that must be addressed before low-load HVAC technologies can be fully evaluated, and introduces PNNL’s planned research and analysis for this project to address identified gaps and potential future work on residential low-load HVAC systems.

Brown, Scott A.; Thornton, Brian; Widder, Sarah H.

2013-09-01T23:59:59.000Z

182

DOE Convening Report on Certification of Commercial HVAC and...  

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

Convening Report on Certification of Commercial HVAC and CRE Products, October 2, 2012 1 U.S. DEPARTMENT OF ENERGY CONVENING REPORT ON THE FEASIBILITY OF A NEGOTIATED RULEMAKING TO...

183

Software-Based Building Airflow Analysis Tool for Enabling HVAC...  

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

Software-Based Building Airflow Analysis Tool for Enabling HVAC Energy Use Savings in Commercial Buildings Speaker(s): Don Wroblewski Date: March 8, 2013 - 12:00pm Location:...

184

Temporal model-based diagnostics generation for HVAC control systems  

Science Conference Proceedings (OSTI)

Optimizing energy usage in buildings requires global models that integrate multiple factors contributing to energy, such as lighting, "Heating, Ventilating, and Air Conditioning" (HVAC), security, etc. Model transformation methods can then use these ...

Marion Behrens; Gregory Provan

2010-06-01T23:59:59.000Z

185

The Optimization of Control Parameters for VAV HVAC System Commissioning  

E-Print Network (OSTI)

One of the technical subjects in commissioning for HVAC system is to enhance control performance and time efficiency, while the tuning of the optimal parameters to control HVAC system takes much time and labor in particular. Therefore, we propose a kind of commissioning technique as follows. We identified the dynamic characteristics of components of an actual VAV HVAC system such as rooms, VAV dampers, two way valves and chilled water coils, and verified the behaviors of the models and choose the optimal control parameters on a personal computer. Then adopting them for the actual system, we verified the control performance. Through the procedure, we showed the possibility of off-site and off-line control parameter tuning to reduce the cost and time at on-site and in on-line using the measured data in a real HVAC system.

Song, S.; Maehara, K.; Sagara, N.

2006-01-01T23:59:59.000Z

186

Columbia Water and Light- Residential HVAC Rebate Program  

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

Columbia Water and Light (CWL) provides an HVAC incentive for residential customers that are replacing an older heating and cooling system. Customers should submit the mechanical permit from a...

187

Sound quality descriptors for HVAC equipment from ARI Standards  

Science Conference Proceedings (OSTI)

The Air Conditioning and Refrigeration Institute (ARI) has several standards that provide methods to evaluate the sound quality of heating ventilating and air?conditioning (HVAC) equipment. These include Standard 270 Sound rating of outdoor unitary equipment

2003-01-01T23:59:59.000Z

188

Commissioning and Performance Diagnostics for HVAC Control Systems  

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

Commissioning and Performance Diagnostics for HVAC Control Systems Speaker(s): Ashish Singhal Date: December 20, 2006 - 12:00pm Location: 90-3122 Seminar HostPoint of Contact:...

189

Adaptive Control and Fault Detection of HVAC Equipment in Commercial...  

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

Adaptive Control and Fault Detection of HVAC Equipment in Commercial Buildings Speaker(s): John Seem Date: February 27, 2002 - 12:00pm Location: Bldg. 90 Seminar HostPoint of...

190

Optimized HVAC Management Service to Enhance Demand Response  

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

Optimized HVAC Management Service to Enhance Demand Response Speaker(s): John Steinberg Date: August 18, 2011 - 12:00pm Location: 90-4133 Seminar HostPoint of Contact: Janie Page...

191

Applications of HVAC System Utilizing Building Thermal Mass in...  

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

Applications of HVAC System Utilizing Building Thermal Mass in Japan Speaker(s): Katsuhiro Miura Date: January 27, 2012 - 10:00am Location: 90-3122 Seminar HostPoint of Contact:...

192

Neural network based optimal control of HVAC&R systems.  

E-Print Network (OSTI)

??Heating, Ventilation, Air-Conditioning and Refrigeration (HVAC&R) systems have wide applications in providing a desired indoor environment for different types of buildings. It is well acknowledged… (more)

Ning, Min

2008-01-01T23:59:59.000Z

193

HVAC system modeling and optimization: a data-mining approach.  

E-Print Network (OSTI)

?? Heating, ventilating and air-conditioning (HVAC) system is complex non-linear system with multi-variables simultaneously contributing to the system process. It poses challenges for both system… (more)

Tang, Fan

2010-01-01T23:59:59.000Z

194

LBL-34045 UC-1600 Residential HVAC Data, Assumptions and Methodology  

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

5 UC-1600 Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1 Francis X. Johnson, Richard E. Brown, James W. Hanford, Alan H. Sanstad and...

195

Ameren Illinois (Electric)- Custom, HVAC, and Motor Business Efficiency Incentives  

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

Prescriptive rebates are available for many HVAC and motor efficiency improvements. Pre-approval is required for all rebates. The programs are available only to non-residential customers that...

196

Upgrading a Multifuncoid ?  

E-Print Network (OSTI)

I define the concepts of multifuncoid (and completary multifuncoid) and upgrading. Then I conjecture that upgrading of certain multifuncoids are multifuncoids (and that upgrading certain completary multifuncoids are completary multifuncoids). I have proved the conjectures for n ? 2. This short article is the first my public writing where I introduce the concept of multidimensional funcoid which I am investigating now. Refer to this Web site for the theory which I now attempt to generalize. 1

L {x Ai

2012-01-01T23:59:59.000Z

197

Measuring advances in HVAC distribution system designs  

Science Conference Proceedings (OSTI)

Substantial commercial building energy savings have been achieved by improving the performance of the HVAC distribution system. The energy savings result from distribution system design improvements, advanced control capabilities, and use of variable-speed motors. Yet, much of the commercial building stock remains equipped with inefficient systems. Contributing to this is the absence of a definition for distribution system efficiency as well as the analysis methods for quantifying performance. This research investigates the application of performance indices to assess design advancements in commercial building thermal distribution systems. The index definitions are based on a first and second law of thermodynamics analysis of the system. The second law or availability analysis enables the determination of the true efficiency of the system. Availability analysis is a convenient way to make system efficiency comparisons since performance is evaluated relative to an ideal process. A TRNSYS simulation model is developed to analyze the performance of two distribution system types, a constant air volume system and a variable air volume system, that serve one floor of a large office building. Performance indices are calculated using the simulation results to compare the performance of the two systems types in several locations. Changes in index values are compared to changes in plant energy, costs, and carbon emissions to explore the ability of the indices to estimate these quantities.

Franconi, Ellen

1998-07-01T23:59:59.000Z

198

Influence Of Three Dynamic Predictive Clothing Insulation Models On Building Energy Use, HVAC Sizing And Thermal Comfort  

E-Print Network (OSTI)

ON BUILDING ENERGY USE, HVAC SIZING AND THERMAL COMFORT aThe results showed that when the HVAC is controlled based onequipment sizing. When the HVAC is controlled based on the

Schiavon, Stefano; Lee, Kwang Ho

2013-01-01T23:59:59.000Z

199

Evaluation of commercially available techniques and development of simplified methods for measuring grille airflows in HVAC systems  

E-Print Network (OSTI)

Walker. 2002. “Residential HVAC and Distribution researchMeasuring Grille Airflows in HVAC Systems I.S. Walker, C.P.Measuring Grille Airflows in HVAC Systems I.S. Walker, C.P.

Walker, Iain S.; Wray, Craig P.; Guillot, Cyril; Masson, S.

2003-01-01T23:59:59.000Z

200

Using measured equipment load profiles to "right-size" HVAC systems and reduce energy use in laboratory buildings (Pt. 2)  

E-Print Network (OSTI)

load profiles to “right-size” HVAC systems and reduce energyGeorgia. ASHRAE [1999]. HVAC Applications Handbook 1999.Inefficiency of a Common Lab HVAC System,” presented at the

Mathew, Paul; Greenberg, Steve; Frenze, David; Morehead, Michael; Sartor, Dale; Starr, William

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1  

E-Print Network (OSTI)

Efficiency Choice 6.3 New Home HVAC System Choice 6.4. NewJuly. EPRI. 1990. REEPS 2.0 HVAC Model Logic, prepared by1990. Review of Equipment HVAC Choice Parameters. Cambridge

Johnson, F.X.

2010-01-01T23:59:59.000Z

202

Building energy modeling programs comparison Research on HVAC systems  

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

energy modeling programs comparison Research on HVAC systems energy modeling programs comparison Research on HVAC systems simulation part Title Building energy modeling programs comparison Research on HVAC systems simulation part Publication Type Journal Year of Publication 2013 Authors Zhou, Xin, Da Yan, Tianzhen Hong, and Dandan Zhu Keywords Building energy modeling programs, comparison tests, HVAC system simulation, theory analysis Abstract Building energy simulation programs are effective tools for the evaluation of building energy saving and optimization of design. The fact that large discrepancies exist in simulated results when different BEMPs are used to model the same building has caused wide concern. Urgent research is needed to identify the main elements that contribute towards the simulation results. This technical report summarizes methodologies, processes, and the main assumptions of three building energy modeling programs (BEMPs) for HVAC calculations: EnergyPlus, DeST, and DOE-2.1E, and test cases are designed to analyze the calculation process in detail. This will help users to get a better understanding of BEMPs and the research methodology of building simulation. This will also help build a foundation for building energy code development and energy labeling programs.

203

An evaluation of three commercially available technologies for real-time measurement of rates of outdoor airflow into HVAC systems  

E-Print Network (OSTI)

RATES OF OUTDOOR AIRFLOW INTO HVAC SYSTEMS William J. Fisk,determine flow resistance of hvac ducts and fittings. A S H

Fisk, William J.; Faulkner, David; Sullivan, Douglas P.

2004-01-01T23:59:59.000Z

204

Issue #7: What are the Best HVAC Solutions for Low-Load, High...  

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

7: What are the Best HVAC Solutions for Low-Load, High Performance Homes? Issue 7: What are the Best HVAC Solutions for Low-Load, High Performance Homes? What components and...

205

WEATHER SEQUENCES FOR PREDICTING HVAC SYSTEM BEHAVIOUR IN RESIDENTIAL UNITS LOCATED IN TROPICAL CLIMATES.  

E-Print Network (OSTI)

WEATHER SEQUENCES FOR PREDICTING HVAC SYSTEM BEHAVIOUR IN RESIDENTIAL UNITS LOCATED IN TROPICAL on the energy needs of HVAC system. We'll apply the method on the tropical Reunion Island. The methodological

Paris-Sud XI, Université de

206

Fight Fall Allergies and Save Energy by Checking Your HVAC System...  

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

Fight Fall Allergies and Save Energy by Checking Your HVAC System Fight Fall Allergies and Save Energy by Checking Your HVAC System October 15, 2012 - 3:19pm Addthis Change your...

207

Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions...  

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

Critical Question 4: What are the Best Off-the-Shelf HVAC Solutions for Low-Load, High-Performance Homes and Apartments? Critical Question 4: What are the Best Off-the-Shelf HVAC...

208

CX-008726: Categorical Exclusion Determination | Department of...  

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

Building (IAB)Telephone Room 112 Heating, Ventilating, and Air Conditioning (HVAC) Upgrade CX(s) Applied: B1.4 Date: 07052012 Location(s): Idaho Offices(s): Idaho...

209

CX-008732: Categorical Exclusion Determination | Department of...  

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

Building (IAB) Communication Room Heating, Ventilation, and Air Conditioning (HVAC) Upgrade CX(s) Applied: B1.31 Date: 05212012 Location(s): Idaho Offices(s): Idaho...

210

CX-001671: Categorical Exclusion Determination | Department of...  

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

Block Grant (EECBG) Health Department Heating, Ventilating, and Air Conditioning (HVAC) RetrofitUpgrade and Revolving Loan Fund (RLF) (S) CX(s) Applied: A9, A11, B5.1 Date:...

211

Commissioning and Performance Diagnostics for HVAC Control Systems  

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

Commissioning and Performance Diagnostics for HVAC Control Systems Commissioning and Performance Diagnostics for HVAC Control Systems Speaker(s): Ashish Singhal Date: December 20, 2006 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Philip Haves The presentation will focus on practical aspects of commissioning control loops in commercial HVAC systems and evaluating their routine performance. Simple and theoretically sound methods for diagnosing control performance will be presented that detect serious performance issues associated with control loops in modern buildings. The discussion will center on a new control loop commissioning tool that helps field personnel to quickly test, tune and troubleshoot control loops. In addition to the active tests for commissioning control loops, a suite of diagnostic algorithms are used in a

212

Optimized HVAC Management Service to Enhance Demand Response  

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

Optimized HVAC Management Service to Enhance Demand Response Optimized HVAC Management Service to Enhance Demand Response Speaker(s): John Steinberg Date: August 18, 2011 - 12:00pm Location: 90-4133 Seminar Host/Point of Contact: Janie Page Many utilities are investing vast sums deploying smart meters to customers, some of whom remain stubbornly opposed to those deployments, in large part because they remain unmoved by the claimed benefits. EcoFactor has developed a thermostat management service that delivers (and quantifies) significant energy savings for consumers and a number of additional benefits to other players in the energy value chain. It does so without relying on consumers to modify behavior, study energy information displays, or even pay attention to their energy use. EcoFactor also significantly boosts DR yield while it increases occupant comfort. It can identify HVAC

213

Energy-Efficient Building HVAC Control Using Hybrid System LBMPC  

E-Print Network (OSTI)

Improving the energy-efficiency of heating, ventilation, and air-conditioning (HVAC) systems has the potential to realize large economic and societal benefits. This paper concerns the system identification of a hybrid system model of a building-wide HVAC system and its subsequent control using a hybrid system formulation of learning-based model predictive control (LBMPC). Here, the learning refers to model updates to the hybrid system model that incorporate the heating effects due to occupancy, solar effects, outside air temperature (OAT), and equipment, in addition to integrator dynamics inherently present in low-level control. Though we make significant modeling simplifications, our corresponding controller that uses this model is able to experimentally achieve a large reduction in energy usage without any degradations in occupant comfort. It is in this way that we justify the modeling simplifications that we have made. We conclude by presenting results from experiments on our building HVAC testbed, which s...

Aswani, Anil; Taneja, Jay; Krioukov, Andrew; Culler, David; Tomlin, Claire

2012-01-01T23:59:59.000Z

214

Active noise control: A tutorial for HVAC designers  

Science Conference Proceedings (OSTI)

This article will identify the capabilities and limitations of ANC in its application to HVAC noise control. ANC can be used in ducted HVAC systems to cancel ductborne, low-frequency fan noise by injecting sound waves of equal amplitude and opposite phase into an air duct, as close as possible to the source of the unwanted noise. Destructive interference of the fan noise and injected noise results in sound cancellation. The noise problems that it solves are typically described as rumble, roar or throb, all of which are difficult to address using traditional noise control methods. This article will also contrast the use of active against passive noise control techniques. The main differences between the two noise control measures are acoustic performance, energy consumption, and design flexibility. The article will first present the fundamentals and basic physics of ANC. The application to real HVAC systems will follow.

Gelin, L.J.

1997-08-01T23:59:59.000Z

215

Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency  

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

Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency Incentives Ameren Illinois (Electric) - Custom, HVAC, and Motor Business Efficiency Incentives < Back Eligibility Commercial Industrial Multi-Family Residential Nonprofit Savings Category Other Heating & Cooling Commercial Heating & Cooling Cooling Home Weatherization Construction Commercial Weatherization Design & Remodeling Manufacturing Sealing Your Home Ventilation Heat Pumps Heating Appliances & Electronics Commercial Lighting Lighting Water Heating Maximum Rebate $600,000/year/facility. Incentives $1-$200,000: paid at 100% Incentives $200,000-$600,000: paid at 50% Custom: 50% of incremental cost Retro-Commissioning: $200,000/year/facility; $100,000/project Leak Survey: $10,000

216

What are the Best HVAC Solutions for Low-Load, High Performance...  

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

What are the Best HVAC Solutions for Low Load, High Performance Homes? www.BuildingScience.com buildingscience.com...

217

HVAC equipment replacement for best size and efficiency  

DOE Green Energy (OSTI)

The purpose of this project was to explore the potential benefits of HVAC equipment replacement for buildings owned by the City of Phoenix. The specific research objectives were as follows: Establishment an understanding of the magnitude and sources of saving available through equipment replacement; Establish an economic model for understanding equipment replacement and deciding when equipment should be replaced; Establish technical methods for calculating savings from replacement of various types of equipment; Demonstrate the replacement of a major item of HVAC equipment and document the savings through actual experimentation and measurement; and Provide guidance material for other jurisdictions wishing to investigate equipment replacement. 11 figs., 9 tabs.

Teji, D.S.

1988-02-01T23:59:59.000Z

218

T10 SND UPGRADE  

E-Print Network (OSTI)

The program of upgrade of the Spherical Neutral Detector for future experiments at a new VEPP-2000 e + e ? collider is presented. Modernization includes upgrades of electromagnetic calorimeter, tracking system, detector electronics, data acquisition system, and offline software. It is also planned to equip the detector with two new subsystems: particle identification system based on aerogel ?erenkov counters and external electron tagging system for ?? physics. 1

unknown authors

2001-01-01T23:59:59.000Z

219

Optics upgrade for switchyard  

SciTech Connect

An upgrade of the Switchyard optics is proposed. This upgrade extends the P3 (old Main Ring) lattice through enclosure C. The septa for the 3-way Meson Area split is moved from enclosure F1 to enclosure M01. The functionality of the Meson Target Train is preserved. Finally, for the purpose of demonstrating that the resulting split can be transported, a straw-man lattice is proposed for enclosure M02 and beyond.

Kobilarcik, Thomas R.; /Fermilab

2005-08-01T23:59:59.000Z

220

Weather-clustering based strategy design for dynamic demand response building HVAC control  

Science Conference Proceedings (OSTI)

Energy consumption and room temperature can be simulated using EnergyPlus model, given the building model, weather information, and HVAC control strategy. For a given weather forecast, however, online simulation-based optimization of the HVAC control ... Keywords: EnergyPlus, building HVAC control strategy, clustering, dynamic demand response

Rui Liao; Geng Li; Shun Miao; Yan Lu; Jianmin Zhu; Ling Shen

2012-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

RF propagation in an HVAC duct system: impulse response characteristics of the channel  

E-Print Network (OSTI)

RF propagation in an HVAC duct system: impulse response characteristics of the channel Pavel V, the heating, ventilation, and air conditioning (HVAC) duct system in buildings is a complex network of hollow at RF and microwave frequencies of com- mon interest. HVAC ducts can be used as a wireless communication

Stancil, Daniel D.

222

BLACK-BOX MODELLING OF HVAC SYSTEM: IMPROVING THE PERFORMANCES OF NEURAL NETWORKS  

E-Print Network (OSTI)

BLACK-BOX MODELLING OF HVAC SYSTEM: IMPROVING THE PERFORMANCES OF NEURAL NETWORKS Eric FOCK Ile de La Réunion - FRANCE ABSTRACT This paper deals with neural networks modelling of HVAC systems of HVAC system can be modelled using manufacturer design data presented as derived performance maps

Paris-Sud XI, Université de

223

Fouling of HVAC Fin and Tube Heat Exchangers Jeffrey Siegel and Van P. Carey  

E-Print Network (OSTI)

LBNL-47668 Fouling of HVAC Fin and Tube Heat Exchangers Jeffrey Siegel and Van P. Carey CIEE ENDORSEMENT OF OR AGREEMENT WITH THESE FINDINGS, NOR THAT OF ANY CIEE SPONSOR. #12;FOULING OF HVAC in residential, commercial and industrial HVAC applications. Invariably, indoor and outdoor air contaminants foul

224

Department of Energy and Mineral Engineering Spring 2013 Solar Innovations -HVAC and Waste Stream Analysis  

E-Print Network (OSTI)

PENNSTATE Department of Energy and Mineral Engineering Spring 2013 Solar Innovations - HVAC and Waste Stream Analysis Overview There are two problems that were voiced by Solar Innovations, HVAC system design and recycling stream improvement. The HVAC system was not providing even conditioning of office

Demirel, Melik C.

225

Automated Testing of HVAC Systems for Commissioning Tim Salsbury and Rick Diamond  

E-Print Network (OSTI)

Automated Testing of HVAC Systems for Commissioning Tim Salsbury and Rick Diamond Lawrence Berkeley of the commissioning of HVAC systems. The approach is based on software that generates a sequence of test signals for new and retrofit projects. Introduction The performance of many HVAC systems is limited more by poor

Diamond, Richard

226

Multi-carrier Signal Transmission through HVAC Ducts: Experimental Results for Channel Capacity  

E-Print Network (OSTI)

Multi-carrier Signal Transmission through HVAC Ducts: Experimental Results for Channel Capacity, for the first time, experimental results on channel capacity of heating, ventilation, and air-conditioning (HVAC through a building HVAC duct system demonstrate the ability to transmit with a spectral efficiency of 3

Stancil, Daniel D.

227

A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS  

E-Print Network (OSTI)

1 A CONTROLLER FOR HVAC SYSTEMS WITH FAULT DETECTION CAPABILITIES BASED ON SIMULATION MODELS T. I describes a control scheme with fault detection capabilities suitable for application to HVAC systems as a reference of correct operation. Faults that occur in the HVAC system under control cause the PI

228

VOLUME 11, NUMBER 2 HVAC&R RESEARCH APRIL 2005 An Optimization-Based Approach for  

E-Print Network (OSTI)

VOLUME 11, NUMBER 2 HVAC&R RESEARCH APRIL 2005 215 An Optimization-Based Approach for Facility formulation and the correspond- ing solution methodology for HVAC systems. The problem is to minimize the energy and demand costs through control of HVAC units while satisfying human comfort, system dynamics

Luh, Peter

229

Seamless Handover in Buildings Using HVAC Ducts: A New System Architecture  

E-Print Network (OSTI)

Seamless Handover in Buildings Using HVAC Ducts: A New System Architecture Ariton E. Xhafa, Paisarn-- In this paper, we present an innovative solution to the handover problem in multi-story buildings using HVAC of the indoor wireless networks that use the heating, ventilation, and air conditioning (HVAC) ducts

Stancil, Daniel D.

230

Tile of the document: HVAC system component-based modeling and implementation  

E-Print Network (OSTI)

1 Abstract Tile of the document: HVAC system component-based modeling and implementation Karam the foundation for modeling components that are used in HVAC systems (heating, ventilation, and air conditioning such functionalities. #12;2 HVAC system component-based modeling and implementation By Karam H. Rajab Scholarly

Austin, Mark

231

Conventional Facilities Chapter 6: HVAC Systems 6-1 NSLS-II Preliminary Design Report  

E-Print Network (OSTI)

Conventional Facilities Chapter 6: HVAC Systems 6-1 NSLS-II Preliminary Design Report 6 MECHANICAL ­ HVAC SYSTEMS 6.1 Design Criteria 6.1.1 Codes and Standards The latest edition of the codes, standards have adequate capacity and head, no chilled water pumps #12;Conventional Facilities Chapter 6: HVAC

Ohta, Shigemi

232

Comparison of dust from HVAC filters, indoor surfaces, and indoor air Federico Noris*  

E-Print Network (OSTI)

Comparison of dust from HVAC filters, indoor surfaces, and indoor air Federico Noris* , Kerry A and Environmental Engineering * Corresponding email: Fedenoris@mail.utexas.edu SUMMARY HVAC filters are long heavy metal (Pb, Cd and As) concentrations. HVAC filter microbial concentrations appear to be consistent

Siegel, Jeffrey

233

VOLUME 16, NUMBER 3 HVAC&R RESEARCH MAY 2010 The Effects of Filtration on  

E-Print Network (OSTI)

VOLUME 16, NUMBER 3 HVAC&R RESEARCH MAY 2010 273 The Effects of Filtration on Pressure Drop and Energy Consumption in Residential HVAC Systems (RP-1299) Brent Stephens Atila Novoselac, PhD Jeffrey A of high-efficiency HVAC filters is a common strategy to control exposure to airborne particulate matter

Siegel, Jeffrey

234

Theoretical Estimates of HVAC Duct Channel Capacity for High-Speed Internet Access  

E-Print Network (OSTI)

Theoretical Estimates of HVAC Duct Channel Capacity for High-Speed Internet Access Ariton E. Xhafa-conditioning (HVAC) ducts based on multi-carrier transmission that uses M-QAM mod- ulation and measured channel- flections in HVAC ducts). Our work also shows that data rates in excess of 300 Mbps are possible over

Stancil, Daniel D.

235

Comparison of HVAC filter test methods for particle removal efficiency Brent Stephens1,*  

E-Print Network (OSTI)

Comparison of HVAC filter test methods for particle removal efficiency Brent Stephens1,* , Jeffrey Introduction The use of HVAC filters in buildings is one strategy to reduce occupant exposure to particulate matter. However, HVAC filters are typically tested only in laboratory settings and little is known about

Siegel, Jeffrey

236

Co-simulation for performance prediction of integrated building and HVAC systems -An analysis of solution  

E-Print Network (OSTI)

Co-simulation for performance prediction of integrated building and HVAC systems - An analysis performance simulation of buildings and heating, ventilation and air- conditioning (HVAC) systems can help, heating, ventilation and air-conditioning (HVAC) systems are responsible for 10%-60% of the total building

237

www.eia.gov  

U.S. Energy Information Administration (EIA)

HVAC Equipment Upgrade .... Lighting Upgrade ..... Window Replacement ..... Plumbing System Upgrade ... Insulation Upgrade ..... Other Renovation ...

238

A new modelling methodology to control HVAC systems  

Science Conference Proceedings (OSTI)

Thermal comfort plays an important role in any working environment, but it is a very vague term and it is also very difficult to represent it on modern computers. Its proper definition could be a condition of the mind which expresses satisfaction with ... Keywords: Control, Energy, HVAC, Model, Thermal comfort

José A. Orosa

2011-04-01T23:59:59.000Z

239

Thermovote: participatory sensing for efficient building HVAC conditioning  

Science Conference Proceedings (OSTI)

Thermal comfort has traditionally been measured solely by temperature. While other methods such as Predicted Mean Vote (PMV) are available for measuring thermal comfort, the parameters required for an accurate value are overly complicated to obtain and ... Keywords: HVAC conditioning, PMV, phones, thermal comfort

Varick L. Erickson; Alberto E. Cerpa

2012-11-01T23:59:59.000Z

240

Fuzzy Control of HVAC Systems Optimized by Genetic Algorithms  

Science Conference Proceedings (OSTI)

This paper presents the use of genetic algorithms to develop smartly tuned fuzzy logic controllers dedicated to the control of heating, ventilating and air conditioning systems concerning energy performance and indoor comfort requirements. This problem ... Keywords: HVAC systems, fuzzy logic controllers, genetic tuning, multiple criteria

Rafael Alcalá; Jose M. Benítez; Jorge Casillas; Oscar Cordón; Raúl Pérez

2003-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Solar House Sink Group HVAC System Design Final Report  

E-Print Network (OSTI)

In this project we apply a systems engineering approach to design an intelligent HVAC system. Using sensors and user provided information the systems determines and adjusts the cooling load on the fly to provide the most efficient operation possible, saving energy and money. The system utilizes variable speed drives to provide just enough capacity to keep the indoor

Bob Hayes; Will Seeber; Zhen Zhao; Zhen Kuang; Isr Advisor; Prof Austin; Prof Baras

2011-01-01T23:59:59.000Z

242

HVAC System Design Strategies to Address Indoor Air Quality Standards  

Science Conference Proceedings (OSTI)

This report describes strategies that can be employed in the design and operation of heating, ventilating, and air conditioning (HVAC) systems to address the ASHRAE Standard 62 "Ventilation for Acceptable Indoor Air Quality" requirements. The report examines a wide variety of approaches to meeting the standard and their impact on energy consumption, occupant comfort, and other factors.

1999-12-09T23:59:59.000Z

243

Upgrading Below Grade Spaces  

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

Patrick H. Huelman, Sam Breidenbach, Steve Schirber Patrick H. Huelman, Sam Breidenbach, Steve Schirber NorthernSTAR Building America Partnership Upgrading Below Grade Spaces Residential Energy Efficiency Stakeholder March 1, 2012 Austin, TX * Act 1: Technical Challenges & Opportunities - Pat Huelman, University of Minnesota * Act 2: Assessing Homeowner Priorities & Risks - Sam Breidenbach, TDS Custom Construction * Act 3: An Industry Perspective - Steve Schirber, Cocoon Act 1. Upgrade Below Grade * Basement Remodeling: It Doesn't Get Any Riskier! - Combustion safety - Foundation moisture - Radon (& other soil gases) - Biologicals (mold, dust mites, etc.) - Garage gases (if attached) * And front and center are uncontrolled... - negative pressures in basements (beyond stack)

244

AGS intensity upgrades  

SciTech Connect

After the successful completion of the AGS Booster and several upgrades of the AGS, a new intensity record of 6.3 x 10{sup 13} protons per pulse accelerated to 24 GeV was achieved. The high intensity slow-extracted beam program at the AGS typically serves about five production targets and about eight experiments including three rare Kaon decay experiments. Further intensity upgrades are being discussed that could increase the average delivered beam intensity by up to a factor of four.

Roser, T.

1995-12-01T23:59:59.000Z

245

Ventilation, temperature, and HVAC characteristics in small and medium  

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

Ventilation, temperature, and HVAC characteristics in small and medium Ventilation, temperature, and HVAC characteristics in small and medium commercial buildings in California Title Ventilation, temperature, and HVAC characteristics in small and medium commercial buildings in California Publication Type Journal Article Refereed Designation Refereed Year of Publication 2012 Authors Bennett, Deborah H., William J. Fisk, Michael G. Apte, X. Wu, Amber L. Trout, David Faulkner, and Douglas P. Sullivan Journal Indoor Air Volume 22 Issue 4 Pagination 309-20 Abstract This field study of 37 small and medium commercial buildings throughout California obtained information on ventilation rate, temperature, and heating, ventilating, and air-conditioning (HVAC) system characteristics. The study included seven retail establishments; five restaurants; eight offices; two each of gas stations, hair salons, healthcare facilities, grocery stores, dental offices, and fitness centers; and five other buildings. Fourteen (38%) of the buildings either could not or did not provide outdoor air through the HVAC system. The air exchange rate averaged 1.6 (s.d. = 1.7) exchanges per hour and was similar between buildings with and without outdoor air supplied through the HVAC system, indicating that some buildings have significant leakage or ventilation through open windows and doors. Not all buildings had sufficient air exchange to meet ASHRAE 62.1 Standards, including buildings used for fitness centers, hair salons, offices, and retail establishments. The majority of the time, buildings were within the ASHRAE temperature comfort range. Offices were frequently overcooled in the summer. All of the buildings had filters, but over half the buildings had a filter with a minimum efficiency reporting value rating of 4 or lower, which are not very effective for removing fine particles. PRACTICAL IMPLICATIONS: Most U.S. commercial buildings (96%) are small- to medium-sized, using nearly 18% of the country's energy, and sheltering a large population daily. Little is known about the ventilation systems in these buildings. This study found a wide variety of ventilation conditions, with many buildings failing to meet relevant ventilation standards. Regulators may want to consider implementing more complete building inspections at commissioning and point of sale.

246

Biochemical upgrading of oils  

DOE Patents (OSTI)

A process for biochemical conversion of heavy crude oils is provided. The process includes contacting heavy crude oils with adapted biocatalysts. The resulting upgraded oil shows, a relative increase in saturated hydrocarbons, emulsions and oxygenates and a decrease in compounds containing in organic sulfur, organic nitrogen and trace metals. Adapted microorganisms which have been modified under challenged growth processes are also disclosed.

Premuzic, Eugene T. (East Moriches, NY); Lin, Mow S. (Rocky Point, NY)

1999-01-12T23:59:59.000Z

247

Biochemical upgrading of oils  

DOE Patents (OSTI)

A process for biochemical conversion of heavy crude oils is provided. The process includes contacting heavy crude oils with adapted biocatalysts. The resulting upgraded oil shows, a relative increase in saturated hydrocarbons, emulsions and oxygenates and a decrease in compounds containing organic sulfur, organic nitrogen and trace metals. Adapted microorganisms which have been modified under challenged growth processes are also disclosed. 121 figs.

Premuzic, E.T.; Lin, M.S.

1999-01-12T23:59:59.000Z

248

The upgrade of GEO600  

E-Print Network (OSTI)

The German / British gravitational wave detector GEO 600 is in the process of being upgraded. The upgrading process of GEO 600, called GEO-HF, will concentrate on the improvement of the sensitivity for high frequency signals and the demonstration of advanced technologies. In the years 2009 to 2011 the detector will undergo a series of upgrade steps, which are described in this paper.

Harald Lück; Christopf Affeldt; Jerome Degallaix; Andreas Freise; Hartmut Grote; Martin Hewitson; Stefan Hild; Jonathan Leong; Mirko Prijatelj; Kenneth A. Strain; Benno Willke; Holger Wittel; Karsten Danzmann

2010-04-02T23:59:59.000Z

249

This paper has been downloaded from the Building and Environmental Thermal Systems Research Group at Oklahoma State University (http://www.hvac.okstate.edu).  

E-Print Network (OSTI)

at Oklahoma State University (http://www.hvac.okstate.edu). The correct citation for the paper is: Spitler, J.D. 2007. Research Planning for the HVAC&R Industry. HVAC&R Research 13(5):681- 682. #12;VOLUME 13, NUMBER 5 HVAC&R RESEARCH SEPTEMBER 2007 681 EDITORIAL Research Planning for the HVAC&R Industry Jeffrey D

250

HVAC Radial Air Bearing Heat Exchangers Research Project | Department of  

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

Radial Air Bearing Heat Exchangers Radial Air Bearing Heat Exchangers Research Project HVAC Radial Air Bearing Heat Exchangers Research Project The U.S. Department of Energy is currently conducting research into heating, ventilation, and air conditioning (HVAC) radial air bearing heat exchangers. Rotary air bearing heat exchanger technology simultaneously solves four long standing problems of conventional "fan-plus-finned-heat-sink" heat exchangers. Project Description This project seeks to design, fabricate, and test successive generations of prototype radial air bearing heat exchanger devices based on lessons learned and further insights into device optimization, computational fluid dynamic studies for parametric optimization and determination of scaling laws, and laboratory measurement of flow field and heat transfer

251

Optimizing HVAC Control to Improve Building Comfort and Energy Performance  

E-Print Network (OSTI)

This paper demonstrates the benefits of optimal control in well-designed and operated buildings using a case study. The case study building was built in 2001. The HVAC and control systems have been installed with state-of-the-art equipment which include a terminal box temperature integrated minimum airflow reset. The building has been used and operated based on the design intents. This paper presents both the existing and the optimal control schedules, which include the VAV box operation schedule, AHUs optimal control, chiller and chilled water pump control, and boiler and hot water pump control. The measured hourly HVAC electricity consumption shows that annual savings of up to 40% can be achieved with an optimal control schedule.

Song, L.; Joo, I.; Dong, D.; Liu, M.; Wang, J.; Hansen, K.; Quiroz, L.; Swiatek, A.

2003-01-01T23:59:59.000Z

252

Quantitative Methods for Comparing Different HVAC Control Schemes  

E-Print Network (OSTI)

Experimentally comparing the energy usage and comfort characteristics of different controllers in heating, ventilation, and air-conditioning (HVAC) systems is difficult because variations in weather and occupancy conditions preclude the possibility of establishing equivalent experimental conditions across the order of hours, days, and weeks. This paper is concerned with defining quantitative metrics of energy usage and occupant comfort, which can be computed and compared in a rigorous manner that is capable of determining whether differences between controllers are statistically significant in the presence of such environmental fluctuations. Experimental case studies are presented that compare two alternative controllers (a schedule controller and a hybrid system learning-based model predictive controller) to the default controller in a building-wide HVAC system. Lastly, we discuss how our proposed methodology may also be able to quantify the efficiency of other building automation systems.

Aswani, Anil; Taneja, Jay; Krioukov, Andrew; Culler, David; Tomlin, Claire

2012-01-01T23:59:59.000Z

253

Plutonium Finishing Plant (PFP) HVAC System Component Index  

SciTech Connect

This document lists safety class (SC) and safety significant (SS) components for the Heating Ventilation Air Conditioning (HVAC) and specifies the critical characteristics for Commercial Grade Items (CGI), as required by HNF-PRO-268 and HNF-PRO-18 19. These are the minimum specifications that the equipment must meet in order to properly perform its safety function. There may be several manufacturers or models that meet the critical characteristics for any one item. The Plutonium Finishing Plant (PFP) HVAC System includes sub-systems 25A through 25K. Specific system boundaries and justifications are contained in HNF-SD-CP-SDD-005, ''Definition and Means of Maintaining the Ventilation System Confinement Portion of the PFP Safety Envelope.'' The procurement requirements associated with the system necessitates procurement of some system equipment as Commercial Grade Items in accordance with HNF-PRO-268, ''Control of Purchased Items and Services.''

DIAZ, E.N.

2000-03-30T23:59:59.000Z

254

HVAC Optimized Heat Exchangers Research Project | Department of Energy  

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

Optimized Heat Exchangers Research Optimized Heat Exchangers Research Project HVAC Optimized Heat Exchangers Research Project The U.S. Department of Energy is currently conducting research into heating, ventilation, and air conditioning (HVAC) optimized heat exchangers. The information generated in this study will demonstrate performance improvements that can be achieved through optimization of refrigerant circuitry for non-uniform inlet air distribution. The tubing circuitry on fin-tube heat exchangers used in residential space-conditioning systems is typically designed assuming uniform airflow through the finned passageways. However, the air flow in installed systems is highly non-uniform, resulting in mismatched refrigerant-air heat transfer that reduces the capacity of the heat exchanger and efficiency of

255

Outdoor airflow into HVAC systems: An evaluation of measurement  

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

Outdoor airflow into HVAC systems: An evaluation of measurement Outdoor airflow into HVAC systems: An evaluation of measurement technologies Title Outdoor airflow into HVAC systems: An evaluation of measurement technologies Publication Type Report LBNL Report Number LBNL-53834 Year of Publication 2003 Authors Fisk, William J., David Faulkner, Douglas P. Sullivan, and William W. Delp Abstract During the last few years, new technologies have been introduced for measuring the flow rates of outdoor air (OA) into HVAC systems; however, an evaluation of these measurement technologies has not previously been published. This document describes a test system and protocols developed for controlled evaluation of these measurement technologies. The results of tests of three measurement technologies are also summarized. The test system and protocol were judged practical and very useful. The test results indicate that one measurement technology can measure OA flow rates with errors of 20% or less without a field-based calibration, as long as the OA velocities are sufficient to provide an accurately measurable pressure signal. The test results for a second measurement technology are similar; however, a difficult field-based calibration relating the OA flow rate with the pressure signal would be required to reduce errors below approximately 30%. The errors in OA flow rates measured with the third measurement technology, that uses six electronic airspeed sensors downstream of the OA inlet louver, exceeded 100%; however, these errors could be substantially reduced through a difficult field based calibration. The effects of wind on the accuracy of these measurement technologies still needs to be evaluated

256

Indoor Air Quality Primer for HVAC System Design  

Science Conference Proceedings (OSTI)

Heating, ventilating, and air conditioning (HVAC) systems are major energy users in commercial and institutional buildings. Increased ventilation for acceptable indoor air quality (IAQ), besides increasing energy use, may result in unacceptably high indoor humidity, particularly in humid climates and/or applications requiring high ventilation rates. This report analyzes how increased ventilation affects the dehumidification capabilities of air conditioning systems in three applications -- offices, retail...

2002-02-21T23:59:59.000Z

257

Computer program for conducting acoustical analyses of HVAC systems.  

Science Conference Proceedings (OSTI)

An interactive Windows?based computer program has been developed that can be used to conduct complete acoustical analyses of HVAC systems. The program can be used to track sound from a HVACsound source such as a fan to a room. Both sound from a single path between a sound source and room or from multiple paths between a sound source and room can be investigated. The program has a full set of editing features that include change

Douglas D. Reynolds; Scott C. Mitchell

1996-01-01T23:59:59.000Z

258

Two Alabama Elementary Schools Get Cool with New HVAC Units | Department of  

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

Alabama Elementary Schools Get Cool with New HVAC Units Alabama Elementary Schools Get Cool with New HVAC Units Two Alabama Elementary Schools Get Cool with New HVAC Units October 1, 2010 - 2:05pm Addthis Winston County School District will receive 14 new HVAC units with State Energy Program funding. | File photo Winston County School District will receive 14 new HVAC units with State Energy Program funding. | File photo Lindsay Gsell What are the key facts? Two public elementary schools receive 14 new HVAC units for classrooms. School district estimates nearly 10 percent in electrical savings with new units. Nineteen Alabama public school districts using Recovery Act grants to save energy and money. Addison Elementary School and Double Springs Elementary School in northwestern Alabama were warm. Some classrooms just didn't cool fast enough. The buildings, which were

259

CRYOGENICS IN BEPCII UPGRADE.  

SciTech Connect

THIS PAPER PRESENTS A CRYOGENIC DESIGN FOR UPGRADING THE BEIJING ELECTRON POSITRON COLLIDER AT THE INSTITUTE OF HIGH ENERGY PHYSICS IN BEIJING. THE UPGRADE INVOLVES 3 NEW SUPERCONDUCTING FACILITIES, THE INTERACTION REGION QUADRUPOLE MAGNETS, THE DETECTOR SOLENOID MAGNETS AND THE SRF CAVITIES. FOR COOLING OF THESE DEVICES, A NEW CRYPLANT WITH A TOTAL CAPACITY OF 1.0KW AT 4.5K IS TO BE BUILT AT IHEP. AN INTEGRATED CRYOGENIC DESIGN TO FIT THE BEPCII CRYOGENIC LOADS WITH HIGH EFFICIENCY IS CARRIEDOUT USING COMPUTATIONAL PROCESS ANALYSIS SOFTWARE WITH THE EMPHASES ON ECONOMICS AND SAFETY IN BOTH CONSTRUCTION AND OPERATION OF THE PLANT. THIS PAPER DESCRIBES THE CRYOGENIC CHARACTERISTICS OF EACH SUPERCONDUCTING DEVICE, THEIR COOLING SCHEMES AND THE OVERALL CRYOPLANT.

JIA,L.; WANG,L.; LI,S.

2002-07-22T23:59:59.000Z

260

The LHCb VELO Upgrade  

E-Print Network (OSTI)

LHCb is a forward spectrometer experiment dedicated to the study of new physics in the decays of beauty and charm hadrons produced in proton collisions at the Large Hadron Collider (LHC) at CERN. The VErtex LOcator (VELO) is the microstrip silicon detector surrounding the interaction point, providing tracking and vertexing measurements. The upgrade of the LHCb experiment, planned for 2018, will increase the luminosity up to $\\rm 2\\times10^{33}\\ cm^{-2}s^{-1}$ and will perform the readout as a trigger-less system with an event rate of 40 MHz. Extremely non-uniform radiation doses will reach up to $\\rm 5 \\times 10^{15}$ 1 MeV$\\rm n_{eq}/cm^2$ in the innermost regions of the VELO sensors, and the output data bandwidth will be increased by a factor of 40. An upgraded detector is under development based in a pixel sensor of the Timepix/Medipix family, with 55 x 55 $\\rm \\mu m^2$ pixels. In addition a microstrip solution with finer pitch, higher granularity and thinner than the current detector is being developed in parallel. The current status of the VELO upgrade program will be described together with recent testbeam results.

Rodriguez Perez P.; LHCb VELO Group

2013-02-25T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Best Practices for Energy Efficient Cleanrooms Efficient HVAC Systems: Variable-Speed-Drive Chillers  

E-Print Network (OSTI)

the portion of chiller energy usage was significant. It is,Figure 1. Benchmarked HVAC energy usages in a semiconductor2. Benchmarked cleanroom energy usages in a semiconductor

Xu, Tengfang

2005-01-01T23:59:59.000Z

262

HVAC Right-Sizing Part 1-Calculating Loads | Department of Energy  

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

-Calculating Loads HVAC Right-Sizing Part 1-Calculating Loads During this webinar, Building America Research Team IBACOS highlighted the key criteria required to create accurate...

263

Energy and Cost Implications of the Florida Energy Star Residential HVAC Rebate Program.  

E-Print Network (OSTI)

??In July 2010, the Florida’s Governors Energy Office released the Florida ENERGY STAR Residential HVAC Rebate Program. The program was funded by a grant from… (more)

Strauss, Kurt

2012-01-01T23:59:59.000Z

264

Design Analysis and Experimental Investigation of the HVAC System in an IC Circuit Plant.  

E-Print Network (OSTI)

??It is the goal of this project to investigate the energy conservation measures which can be adapted in an electronic manufacturing plant HVAC system. Computer… (more)

Chang, I-wei

2005-01-01T23:59:59.000Z

265

REDESIGN OF HVAC SYSTEM TO IMPROVE ENERGY EFFICIENCY OF EDUCATIONAL BUILDING.  

E-Print Network (OSTI)

??An energy modeling software was used to analyze the current building configuration and simulations were performed in an attempt to redesign the current HVAC system… (more)

Hagene, Brian Matthew

2012-01-01T23:59:59.000Z

266

Quiet unlined HVAC ductwork: Using active silencing to obtain NC?35 in buildings without fibrous materials  

Science Conference Proceedings (OSTI)

Fan noise in HVAC ducts has traditionally been attenuated with fibrous internal duct liner or with passive silencers constructed with porous fill material. Now

Steve Wise; Lawrence J. Gelin; Kirk G. Burlage; Susan H. Dineen

1995-01-01T23:59:59.000Z

267

HVAC Right-Sizing Part 1: Calculating Loads | Department of Energy  

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

: Calculating Loads HVAC Right-Sizing Part 1: Calculating Loads This webinar, presented by IBACOS (a Building America Research Team) will highlight the key criteria required to...

268

Numerical Investigation of Flow Induced Noise in a Simplified HVAC Duct with OpenFOAM.  

E-Print Network (OSTI)

?? Due to the growing demand for comfort, the noise generated by HVAC components should be considered by the designers. Flow induced noise is one… (more)

Wang, Cong

2013-01-01T23:59:59.000Z

269

Tecniche di machine learning per la ricerca guasti in impianti HVAC.  

E-Print Network (OSTI)

??Il corretto funzionamento degli impianti di tipo HVAC (Heating Ventilating and Air Conditioning) di taglia medio/grande, risulta cruciale al fine di garantire un adeguato livello… (more)

Corso, Lorenzo

2012-01-01T23:59:59.000Z

270

Dynamic modeling and global optimal operation of multizone variable air volume HVAC systems.  

E-Print Network (OSTI)

??Energy conservation and indoor environment concerns have motivated extensive research on various aspects of control of Heating, Ventilating and Air-Conditioning (HVAC) and building systems. The… (more)

Zheng, Guo Rong

1997-01-01T23:59:59.000Z

271

Analysis and modelling of membrane heat exchanger in HVAC energy recovery systems.  

E-Print Network (OSTI)

??The performance of membrane heat exchangers for HVAC total energy recovery systems was evaluated through experimentation and detailed system modelling. The operating principle of the… (more)

Nasif, Mohammad Shakir

2008-01-01T23:59:59.000Z

272

Assessment of organic compound exposures, thermal comfort parameters, and HVAC system-driven air exchange rates in public school portable classrooms in California  

E-Print Network (OSTI)

SPECIFY UNITS) when heat (of HVAC) is turned off?using the heat (from HVAC)? A. B. C. D. January Februaryair conditionmg (from HVAC)? A. B. C. D. January February

Shendell, Derek Garth

2010-01-01T23:59:59.000Z

273

Global Scratch Upgrade in Progress  

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

Global Scratch Gets Global Scratch Gets an Upgrade Global Scratch Gets an Upgrade Improvements Will Include Higher Data Output Rates, Connection to PDSF October 29, 2013 The most used file system at the National Energy Research Scientific Computing Center (NERSC)-global scratch-just got an upgrade. As a result, some users may see their data output to global scratch reach up to 80 gigabytes per second. Although users will probably not see their 20-terabyte storage quotas increase, the upgrade ensures that global scratch remains flexible and paves the way for PDSF to eventually use the file system Because of the upgrade, users will also be able to better access their temporary data files or "scratch data" from any NERSC system, not just the one that generated it. Prior to the upgrade, Global scratch typically

274

Upgrading of TREAT experimental capabilities  

Science Conference Proceedings (OSTI)

The TREAT facility at the Argonne National Laboratory site in the Idaho National Engineering Laboratory is being upgraded to provide capabilities for fast-reactor-safety transient experiments not possible at any other experimental facility. Principal TREAT Upgrade (TU) goal is provision for 37-pin size experiments on energetics of core-disruptive accidents (CDA) in fast breeder reactor cores with moderate sodium void coefficients. this goal requires a significant enhancement of the capabilities of the TREAT facility, specifically including reactor control, hardened neutron spectrum incident on the test sample, and enlarged building. The upgraded facility will retain the capability for small-size experiments of the types currently being performed in TREAT. Reactor building and crane upgrading have been completed. TU schedules call for the components of the upgraded reactor system to be finished in 1984, including upgraded TREAT fuel and control system, and expanded coverage by the hodoscope fuel-motion diagnostics system.

Dickerman, C.E.; Rose, D.; Bhattacharyya, S.K.

1982-01-01T23:59:59.000Z

275

Upgraded Coal Interest Group  

Science Conference Proceedings (OSTI)

The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

Evan Hughes

2009-01-08T23:59:59.000Z

276

Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of chilled water pumps  

E-Print Network (OSTI)

Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of HVAC equipment using variable speed drive (VSD) is an Energy Conservation Opportunity (ECO) which can

Paris-Sud XI, Université de

277

Energy Star Building Upgrade Manual  

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

program helping businesses and individuals fight global warming through superior energy efficiency. ENERGY STAR Building Upgrade Manual United States Environmental Protection...

278

Source attenuating HVAC equipment—Just the facts  

Science Conference Proceedings (OSTI)

Current classroom designs range from NC 63 to NC 25. The ASA/ANSI 12.60 Classroom Standard sets a relatively low background sound requirement for classrooms. Achieving 12.60 levels economically requires the maximum in source sound attenuation. This paper will provide a manufacturer’s perspective on current and low noiseHVAC products and the resulting classroomsound levels. Predictive acoustics software will be used to predict the space sound power level and some indication of equipment cost will be provided in order to assist designers in what is the best approach to low noiseclassroom design.

2004-01-01T23:59:59.000Z

279

Creating a Virtual HVAC Laboratory for Continuing/Distance Education  

E-Print Network (OSTI)

Facilities engineering is one technical field where lab-based continuing education programs can be delivered in a distance learning format. The widespread use of computer controls for optimizing the efficiency of a building's mechanical and electrical systems has made the "distance" element possible. Rather than traveling to individual buildings to make pressure, temperature, and flow measurements in person, facility engineers routinely access performance data over the Internet. This networking capability has been used in an educational setting to deliver interactive technical training to large numbers of undergraduate students and professional facilities engineers. Many students can access real time data from a single piece of HVAC equipment over the Internet.

William J. Hutzel

2001-01-01T23:59:59.000Z

280

ZonePAC: Zonal Power Estimation and Control via HVAC Metering and Occupant Feedback  

Science Conference Proceedings (OSTI)

Heating Ventillation and Air Conditioning (HVAC) systems account for nearly 40% of primary energy consumption by commercial buildings. Yet, these systems by and large operate in an open-loop with the building occupants. While the monitoring and feedback ... Keywords: Energy Estimation, HVAC, Thermostat, User Interface, Variable Air Volume

Bharathan Balaji, Hidetoshi Teraoka, Rajesh Gupta, Yuvraj Agarwal

2013-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

An "ageing" operator and its use in the highly constrained topological optimization of HVAC system design  

Science Conference Proceedings (OSTI)

The synthesis of novel heating, ventilating, and air-conditioning (HVAC), system configurations is a mixed-integer, non-linear, highly constrained, multi-modal, optimization problem, with many of the constraints being subject to time-varying boundary ... Keywords: HVAC, evolutionary algorithms, system design, topological optimization

Jonathan Wight; Yi Zhang

2005-06-01T23:59:59.000Z

282

Co-design of control algorithm and embedded platform for building HVAC systems  

Science Conference Proceedings (OSTI)

The design of heating, ventilation and air conditioning (HVAC) systems is crucial for reducing energy consumption in buildings. As complex cyber-physical systems, HVAC systems involve three closely-related subsystems -- the control algorithm, the physical ... Keywords: building energy efficiency, co-design, platform-based design

Mehdi Maasoumy, Qi Zhu, Cheng Li, Forrest Meggers, Alberto Sangiovanni-Vincentelli

2013-04-01T23:59:59.000Z

283

Airborne Particulate Matter in HVAC Systems and its Influence on Indoor Air Quality  

E-Print Network (OSTI)

This paper first reviews the mechanisms governing movement of PMs in HVAC systems. Then, the basic equations governing PM deposition in ducts are introduced and investigations on airborne PMs distribution in HVAC systems are reviewed. The influence of PMs on indoor air quality and effectiveness of corresponding controlling measures is discussed extensively in the paper. Finally, recommendations for further research are given.

Fu, Z.; Li, N.; Wang, H.

2006-01-01T23:59:59.000Z

284

Review of Pre- and Post-1980 Buildings in CBECS - HVAC Equipment  

SciTech Connect

PNNL was tasked by DOE to look at HVAC systems and equipment for Benchmark buildings based on 2003 CBECS data. This white paper summarizes the results of PNNL’s analysis of 2003 CBECS data and provides PNNL’s recommendations for HVAC systems and equipment for use in the Benchmark buildings.

Winiarski, David W.; Jiang, Wei; Halverson, Mark A.

2006-12-01T23:59:59.000Z

285

Feasibility of retrofitting centralized HVAC systems for room-level zoning  

Science Conference Proceedings (OSTI)

Heating, ventilation, and cooling (HVAC) accounts for 38% of building energy usage, and over 15% of all US energy usage, making it one of the nation's largest energy consumers. Many attempts have been made to optimize the control of HVAC systems by minimizing ... Keywords: sensing,Building energy,wireless sensor networks

Tamim Sookoor; Brian Holben; Kamin Whitehouse

2012-06-01T23:59:59.000Z

286

Proposal for the Award of a Contract for Maintenance, Operation and Minor Installation Work for CERN Cooling and HVAC Systems  

E-Print Network (OSTI)

Proposal for the Award of a Contract for Maintenance, Operation and Minor Installation Work for CERN Cooling and HVAC Systems

1996-01-01T23:59:59.000Z

287

Development of New HVAC Design Tools: Search for the Holy Grail of  

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

Development of New HVAC Design Tools: Search for the Holy Grail of Development of New HVAC Design Tools: Search for the Holy Grail of Ventilation Research Speaker(s): Jelena Srebric Date: January 29, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: William Fisk HVAC systems are very important to our wellbeing, energy, and the environment. Current design tools are typically supported by basic knowledge, and keep us at arm's length from the many practical problems. The design paradigm has been shifted several times in the past from thermal comfort, energy conservation, health concerns, and now probably to security issues. Each of the shift has required better design tools of HVAC systems.A team led by Dr. Jelena Srebric at the Department of Architecture, the Penn State University (PSU) is developing new HVAC design tools to meet

288

Direct Digital Control- A Tool for Energy Management of HVAC Systems  

E-Print Network (OSTI)

Direct digital control (DDC) applied to heating, ventilating, and air-conditioning (HVAC) systems corrects many of the deficiencies of conventional automatic temperature control systems. By applying new control sequences, DDC optimizes HVAC energy use. DDC can reduce HVAC operation and maintenance time and provide the environmental conditions needed to maximize production. DDC technology uses standalone, microprocessor based controllers. Controllers directly sense and process control variables (e.g. temperature, pressure) and provide a control signal to an actuator. Personal computers provide remote or local access to the digital controllers and give HVAC mechanics, energy managers, and facility engineers capabilities that conventional control systems do not offer. This paper discusses the most common deficiencies of conventionally controlled HVAC systems, advantages of DOC systems, and a case study retrofit from pneumatic control to digital control.

Swanson, K.

1993-03-01T23:59:59.000Z

289

Proceedings of Healthy Buildings 2009 Paper 535 HVAC filters as "passive" samplers: fate analysis of indoor particles  

E-Print Network (OSTI)

Proceedings of Healthy Buildings 2009 Paper 535 HVAC filters as "passive" samplers: fate analysis: fedenoris@mail.utexas.edu SUMMARY To assess the potential use of HVAC filters as passive indoor samplers, exfiltration, and capture in the HVAC filter. The results suggest that large particles are likely to deposit

Siegel, Jeffrey

290

Simulation of Control Options for HVAC Management of a Typical Office Julien CAILLET julien.caillet@mines-paristech.fr  

E-Print Network (OSTI)

Simulation of Control Options for HVAC Management of a Typical Office Building. Julien CAILLET thermal comfort and to reduce energy consumption of buildings. Among defect correction, HVAC control appears as a way of significant improvement. HVAC control is examined by using a dynamic simulation

Paris-Sud XI, Université de

291

7/11/00-draft copy: do not quote 1 of 30 New Technologies for Residential HVAC Ducts  

E-Print Network (OSTI)

7/11/00-draft copy: do not quote 1 of 30 New Technologies for Residential HVAC Ducts Burke Treidler is not evaluated and HVAC contractors overcome duct system shortcomings by installing oversized equipment Technologies for Residential HVAC Ducts fittings with some use of ductboard. Fittings that snap together were

292

IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 53, NO. 2, FEBRUARY 2005 335 On the Capacity Limits of HVAC Duct Channel for  

E-Print Network (OSTI)

of HVAC Duct Channel for High-Speed Internet Access Ariton E. Xhafa, Member, IEEE, Ozan K. Tonguz, Member and experimental channel-capacity estimates of heating, ventilation, and air condi- tioning (HVAC) ducts based suppressed. Our experimental results also show that even in the case of more complex HVAC duct networks (i

Stancil, Daniel D.

293

1736 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 51, NO. 10, OCTOBER 2003 Impulse Response of the HVAC Duct as a  

E-Print Network (OSTI)

of the HVAC Duct as a Communication Channel Pavel V. Nikitin, Member, IEEE, Daniel D. Stancil, Senior Member (HVAC) ducts in buildings behave as multimode waveguides when excited at radio frequencies and thus, can of a usual indoor propagation channel. In this paper, we describe physical mechanisms which affect the HVAC

Hochberg, Michael

294

ETME 422 -REFRIGERATION & HVAC SYSTEMS FALL 2011 LEC -10:00 -10:50am M W F RH 312  

E-Print Network (OSTI)

10/31/2011 ETME 422 - REFRIGERATION & HVAC SYSTEMS FALL 2011 LEC - 10:00 - 10:50am M W F RH 312 Catalog Description ETME 422 PRINCIPLES OF HVAC I F 3 cr. LEC 3 PREREQUISITE: EMEC 320 or EGEN 324. -- Refrigeration and heating, ventilating and air-conditioning (HVAC) for comfort and industrial applications

Dyer, Bill

295

Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1  

E-Print Network (OSTI)

LBL-34045 UC-1600 Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting-uses include Heating, Ventilation and Air Conditioning (HVAC). Our analysis uses the modeling framework provided by the HVAC module in the Residential End-Use Energy Planning System (REEPS), which was developed

296

Predicting of fan speed for energy saving in HVAC system based on adaptive network based fuzzy inference system  

Science Conference Proceedings (OSTI)

In this paper, a HVAC (heating, ventilating and air-conditioning) system has two different zones was designed and fan motor speed to minimize energy consumption of the HVAC system was controlled by a conventional (proportional-integral-derivative) PID ... Keywords: ANFIS, Air flow control, Energy saving, Fan motor speed predicting, HVAC system, PID control, Temperature control

Servet Soyguder; Hasan Alli

2009-05-01T23:59:59.000Z

297

Thermal storage HVAC system retrofit provides economical air conditioning  

Science Conference Proceedings (OSTI)

This article describes an EMS-controlled HVAC system that meets the ventilation and cooling needs of an 18,000-seat indoor ice hockey arena. The Buffalo Memorial Auditorium (affectionately referred to as the Aud) was built in 1937 under the Works Project Administration of the federal government. Its original configuration included a 12,000-seat arena with an ice skating rink. By the late 1980s, the city was unsuccessfully attempting to attract events and tenants to the auditorium, which lacked air conditioning and other modern amenities. Thus, it was decided to renovate the facility to make it marketable. The first phase of the renovation included installing an air-conditioning system in the arena and repairing the existing building systems that were inoperable because of deferred maintenance. After considering the existing conditions (such as size of the space, intermittent usage, construction restrictions, operating budgets and the limited operations staff), the engineering team designed an innovative HVAC system. The system's features include: a carbon dioxide monitoring device that controls the intake of outside air; an ice storage system that provides chilled water and shifts electrical demand to off-peak hours; and a design that uses the building mass as a heat sink. A new energy management system (EMS) determines building cooling needs based on the type of event, ambient conditions and projected audience size. Then, it selects the most economical method to obtain the desired arena temperature.

Smith, S.F. (Wendel Engineers, P.C., Buffalo, NY (United States))

1993-03-01T23:59:59.000Z

298

Avoiding low frequency noise in packaged HVAC equipment  

Science Conference Proceedings (OSTI)

The purpose of this article is to help those involved in the design and commissioning of packaged HVAC systems to understand the root causes of low frequency noise problems and how to avoid many of them at the design stage. In the 1980's, two things happened to dramatically change the types of noise problems encountered in typical new construction. The first was the introduction of new energy regulations that favored variable air volume (VAV) distribution systems over constant volume air distribution systems. A by-product of VAV design is that mid- and high frequency sound pressure levels produced by current air terminal devices and diffusers in many applications are significantly lower than in the past. The second factor was a trend away from the use of built-up central station fan equipment in favor of packaged, floor-by-floor air handlers or rooftop units. As a result, today's HVAC system noise problems are not confined to just the roar and hiss of the past, but now include intense low frequency rumble and time modulation. Indeed, most current noise problems in modern buildings occur in the frequency range well below 250 Hz. A large fraction of these are a result of the dominant sound pressure levels in the 12 to 40 Hz region. These factors, combined with a substantial increase in the level of low frequency sound from the rest of the system, can produce a non-neutral, time modulated, rumbly sounding background noise that many people find objectionable.

Ebbing, C.E. (Carrier Corp., Syracuse, NY (United States). Commercial Unitary Division); Blazier, W.E.Jr. (Warren Blazier Associates, San Francisco, CA (United States))

1993-06-01T23:59:59.000Z

299

Tenneco upgrades natural gasoline  

SciTech Connect

Tenneco Oil Co. recently completed a natural gasoline upgrading project at its LaPorte, Tex., facility. The project was started in October 1985. The purpose was to fractionate natural gasoline and isomerize the n-pentane component. Three factors made this a particularly attractive project for the LaPorte complex: 1. The phase down of lead in gasoline made further processing of natural gasoline desirable. 2. Idle equipment and trained personnel were available at the plant as a result of a switch of Tenneco's natural gas liquids (NGL) fractionation to its Mont Belvieu, Tex., facility. 3. The plant interconnects with Houston's local markets. It has pipelines to Mont Belvieu, Texas City, and plants along the Houston Ship Channel, as well as truck, tank car, and barge-loading facilities. Here are the details on the operation of the facilities, the changes which were required to enable the plant to operate successfully, and how this conversion was completed in a timely fashion.

O'Gorman, E.K.

1986-08-01T23:59:59.000Z

300

NSLS control system upgrade status  

SciTech Connect

The NSLS control system initially installed in 1978 has undergone several modifications but the basic system architecture remained relatively unchanged. The need for faster response, increased reliability and better diagnostics made the control system upgrade a priority. Since the NSLS runs continuously, major changes to the control system are difficult. The upgrade plan had to allow continuous incremental changes to the control system without having any detrimental effect on operations. The plan had to provide for immediate improvement in a few key areas, such as data access rates, and be complete in a short time. At present, most accelerator operations utilize the upgraded control system.

Smith, J.; Ramamoorthy, S.; Tang, Y.; Flannigan, J.; Sathe, S.; Keane, J.; Krinsky, S.

1993-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Application of Various HVAC Simulation Programs and Visual Tools to Commissioning  

E-Print Network (OSTI)

Various existing HVAC system simulation programs and visualization tools are considered to be potentially powerful tools for commissioning. Although not originally developed as commissioning tools, these programs facilitate the confirmation/comparison of HVAC system function and performance and enable detailed analysis of parameters influencing HVAC system performance. This paper investigates the functionality and ease of use of several such programs in support of the commissioning process. The investigation and assessment of simulation programs includes: Micro HASP, Micro ACSS, FACES, LCEM, HVACSIM+, TRNSYS, DOE-2, EnergyPlus and DeST and their visual tools.

Zheng, M.; Pan, S.

2007-01-01T23:59:59.000Z

302

HVAC Right-Sizing Part 1: Calculating Loads  

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

Building America Building America Presented by: Mike Gestwick - National Renewable Energy Laboratory Arlan Burdick, Anthony Grisolia - IBACOS, a Building America Research Team HVAC Right-Sizing Part 1: Calculating Loads Thursday, April 28 11:00 a.m. - 12:00 p.m. Eastern Building Technologies Program Mike Gestwick michael.gestwick@nrel.gov Building America: Introduction April 28, 2011 Introduction to Building America * Reduce energy use in new and existing residential buildings * Promote building science and systems engineering / integration approach * "Do no harm": Ensure safety, health and durability are maintained or improved * Accelerate adoption of high performance technologies www.buildingamerica.gov 15 Industry Research Teams Habitat Cost Effective Energy Retrofit Program

303

Commercial Building HVAC Energy Usage in Semi-Tropical Climates  

E-Print Network (OSTI)

The design of heating and cooling equipment in semi-tropical climates presents some design considerations and limitations not so prevalent in temperate climates. In some cases, the heating season may be non-existent for all practical purposes. Another consideration is the high ventilation loads due to cooling the moist air prevalent in semi-tropical climates. This paper describes a computer program which assesses all the pertinent variables which comprise the annual heating and cooling energy requirements for commercial buildings. It is then suggested that this computer program would be valuable in determining the changes one could expect in annual energy usage by varying certain building design parameters. Secondly, a small office building actually constructed in Central Florida in which the author designed the Heating and Cooling HVAC system is described. Tradeoffs are presented showing the effects of changes in these building design parameters.

Worbs, H. E.

1987-01-01T23:59:59.000Z

304

Revised noise criteria for design and rating of HVAC systems  

Science Conference Proceedings (OSTI)

This paper reviews current methods of rating the noise produced by HVAC systems and explains why these ratings fail to be correlated with subjective opinion in many cases. An entirely new method of assigning noise ratings is proposed which is expected to provide a significantly better correlation between objective measurements and subjective response. The proposed new rating method makes use of a revised set of noise criterion curves (RC curves) which appeared for the first time in Chap. 35 of the 1980 Systems Volume of the ASHRAE Handbook. This paper also discusses the technical considerations leading to the development of the RC curves as a replacement for the NC curves which have been used in the past.

Warren E. Blazier Jr.

1984-01-01T23:59:59.000Z

305

Co-simulation of innovative integrated HVAC systems in buildings  

SciTech Connect

Integrated performance simulation of buildings HVAC systems can help in reducing energy consumption and increasing occupant comfort. However, no single building performance simulation (BPS) tool offers sufficient capabilities and flexibilities to analyze integrated building systems and to enable rapid prototyping of innovative building and system technologies. One way to alleviate this problem is to use co-simulation, as an integrated approach to simulation. This article elaborates on issues important for co-simulation realization and discusses multiple possibilities to justify the particular approach implemented in the here described co-simulation prototype. The prototype is validated with the results obtained from the traditional simulation approach. It is further used in a proof-of-concept case study to demonstrate the applicability of the method and to highlight its benefits. Stability and accuracy of different coupling strategies are analyzed to give a guideline for the required coupling time step.

Trcka, Marija; Hensena, Jan L.M.; Wetter, Michael

2010-06-21T23:59:59.000Z

306

Occupancy sensors for HVAC gaining in hotel industry  

SciTech Connect

The hotel industry is overcoming its skepticism as occupancy sensors with built-in thermistors to control heating, ventilating, and air conditioning (HVAC) units demonstrate their ability to cut energy costs as much as 30%. Despite the successful demonstrations and acceptance by Holiday Inn, some hotel managers of other chains continue to resist. Occupancy sensors have either ultrasonic or infrared signals, but differ from lighting control devices by also having internal thermistors and remote door switches. This allows the rooms to reach comfort levels only when the guest is present since occupants are only minimally affected if temperatures are modified during unoccupied periods. The system works best for roadside-type motels rather than convention hotels, where occupants are in and out of their rooms.

Ladd, C.

1985-12-02T23:59:59.000Z

307

Dynamic Mercury Cycling Model Upgrade  

Science Conference Proceedings (OSTI)

This technical update describes the status of activities to upgrade the Dynamic Mercury Cycling Model (D-MCM), an EPRI simulation model that predicts mercury cycling and bioaccumulation in lakes.

2008-12-17T23:59:59.000Z

308

Fight Fall Allergies and Save Energy by Checking Your HVAC System |  

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

Fight Fall Allergies and Save Energy by Checking Your HVAC System Fight Fall Allergies and Save Energy by Checking Your HVAC System Fight Fall Allergies and Save Energy by Checking Your HVAC System October 15, 2012 - 3:19pm Addthis Change your furnace filter to help keep allergies at bay and keep your furnace and air conditioner running efficiently. | Photo courtesy of ©iStockphoto.com/JaniceRichard. Change your furnace filter to help keep allergies at bay and keep your furnace and air conditioner running efficiently. | Photo courtesy of ©iStockphoto.com/JaniceRichard. Elizabeth Spencer Communicator, National Renewable Energy Laboratory What does this mean for me? Change your furnace filters every month or two to keep your HVAC equipment operating efficiently. I have unbelievably horrible fall allergies. I've never figured out what

309

What are the Best HVAC Solutions for Low-Load, High Performance Homes?"  

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

This presentation was given at the Summer 2012 DOE Building America meeting on July 26, 2012, and addressed the question What are the best HVAC solutions for low-load, high performance homes?"

310

Post-Retrocommissioning HVAC Operations Monitoring Using Enterprise-Wide energy Management System  

E-Print Network (OSTI)

Since 2004, the County of Los Angeles have retrocommissioned over 4 million square feet and additional RCx work is underway. The scope of the HVAC retrocommissioning (RCs) involved systematic investigation of mechanical, electrical and controls components/systems to diagnose and resolve root causes of operational deficiencies. During the implementation phase, new energy efficiency measures were installed, sequence of operations were optimized and functionally tested. System-level benchmark models for HVAC systems were developed based on optimized runs of eQUEST energy models and parametrically integrated into the County owned web-based Enterprise Energy Management Information Systems (EEMIS) with Itron/Silicon Energy EEM Suite backbone for the purpose of monitoring the operations of the HVAC systems. The paper and presentation describes the HVAC RCx process to optimize operations, cost and savings associated with this project and key operational changes to sustain optimized operations without sacrificing tenant comfort.

Amarnani, N.; Roberts, B.; Choy, H.

2007-01-01T23:59:59.000Z

311

A model-based fault detection and diagnostic methodology for secondary HVAC systems.  

E-Print Network (OSTI)

??In the U.S., buildings consume 39 % of primary energy, of which, 13.5% is attributed to HVAC systems. Faults, arising from sensors, equipment, and control… (more)

Li, Shun

2009-01-01T23:59:59.000Z

312

Control Systems and Applications for HVAC/R, 1st edition  

Science Conference Proceedings (OSTI)

From the Publisher:Unique in combining into one book, the operational and selection characteristics of commonly used control devices with the thermal and response characteristics of HVAC processes. It presents step-by-step techniques for analyzing the ...

Thomas J. Horan

1996-10-01T23:59:59.000Z

313

Development of New HVAC Design Tools: Search for the Holy Grail...  

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

Development of New HVAC Design Tools: Search for the Holy Grail of Ventilation Research Speaker(s): Jelena Srebric Date: January 29, 2004 - 12:00pm Location: Bldg. 90 Seminar Host...

314

ASHRAE sound and vibration technical committee position statement on the use of fiberglass in HVAC systems  

Science Conference Proceedings (OSTI)

Fiberglass duct liner continues to be the most cost?effective solutions to noise control in most HVAC air duct systems. There has been a recent increase in the number of institutional

Russell A. Cooper

1995-01-01T23:59:59.000Z

315

Application of computational intelligence in modeling and optimization of HVAC systems.  

E-Print Network (OSTI)

?? HVAC (Heating Ventilating and Air-Conditioning) system is multivariate, nonlinear, and shares time-varying characteristics. It poses challenges for both system modeling and performance optimization. Traditional… (more)

Li, Mingyang

2009-01-01T23:59:59.000Z

316

A model-based predictive supervisory controller for multi-evaporator HVAC systems  

Science Conference Proceedings (OSTI)

Multi-evaporator vapor compression cooling systems are representative of the complex, distributed nature of modern HVAC systems. Earlier research efforts focused on the development of a decentralized control architecture for individual evaporators that ...

Matthew S. Elliott; Bryan P. Rasmussen

2009-06-01T23:59:59.000Z

317

DOE Convening Report on Certification of Commercial HVAC and CRE Products  

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

This document is the convening report on the feasibility of a negotiated rulemaking to revise the certification program for commercial HVAC and CRE products published on October 2, 2012.

318

Applying brain emotional learning algorithm for multivariable control of HVAC systems  

Science Conference Proceedings (OSTI)

In this paper, we apply a modified version of Brain Emotional Learning (BEL) controller for Heating, Ventilating and Air Conditioning (HVAC) control system whose multivariable, nonlinear and non-minimum phase nature makes the task difficult. The proposed ...

N. Sheikholeslami; D. Shahmirzadi; E. Semsar; C. Lucas; M. J. Yazdanpanah

2006-01-01T23:59:59.000Z

319

User and Performance Impacts from Franklin Upgrades  

SciTech Connect

The NERSC flagship computer Cray XT4 system"Franklin" has gone through three major upgrades: quad core upgrade, CLE 2.1 upgrade, and IO upgrade, during the past year. In this paper, we will discuss the various aspects of the user impacts such as user access, user environment, and user issues etc from these upgrades. The performance impacts on the kernel benchmarks and selected application benchmarks will also be presented.

He, Yun (Helen)

2009-05-10T23:59:59.000Z

320

A Hierarchical Rule-Based Fault Detection and Diagnostic Method for HVAC Systems  

E-Print Network (OSTI)

A rule-based, system-level fault detection and diagnostic (FDD) method for HVAC systems was developed. It functions as an interface between multiple, equipment-specific FDD tools and a human operator. The method resolves and prioritizes conflicting fault reports from equipment-specific FDD tools, performs FDD at the system level, and presents an integrated view of an HVAC system’s fault status to an operator. A simulation study to test and evaluate the method was conducted.

Jeffrey Schein; Steven T. Bushby

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

DOE Convening Report on Certification of Commercial HVAC and CRE Products  

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

Convening Report on Certification of Commercial HVAC and CRE Products, October 2, 2012 Convening Report on Certification of Commercial HVAC and CRE Products, October 2, 2012 1 U.S. DEPARTMENT OF ENERGY CONVENING REPORT ON THE FEASIBILITY OF A NEGOTIATED RULEMAKING TO REVISE THE CERTIFICATION PROGRAM FOR COMMERCIAL HEATING, VENTILATING AIR CONDITIONING AND COMMERCIAL REFRIGERATION EQUIPMENT October 2, 2012 Alan W. Strasser, Esq., MA Convener

322

An Evaluation of the HVAC Load Potential for Providing Load Balancing Service  

Science Conference Proceedings (OSTI)

This paper investigates the potential of providing aggregated intra-hour load balancing services using heating, ventilating, and air-conditioning (HVAC) systems. A direct-load control algorithm is presented. A temperature-priority-list method is used to dispatch the HVAC loads optimally to maintain consumer-desired indoor temperatures and load diversity. Realistic intra-hour load balancing signals were used to evaluate the operational characteristics of the HVAC load under different outdoor temperature profiles and different indoor temperature settings. The number of HVAC units needed is also investigated. Modeling results suggest that the number of HVACs needed to provide a {+-}1-MW load balancing service 24 hours a day varies significantly with baseline settings, high and low temperature settings, and the outdoor temperatures. The results demonstrate that the intra-hour load balancing service provided by HVAC loads meet the performance requirements and can become a major source of revenue for load-serving entities where the smart grid infrastructure enables direct load control over the HAVC loads.

Lu, Ning

2012-09-30T23:59:59.000Z

323

upgrade | OpenEI Community  

Open Energy Info (EERE)

4 4 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142235354 Varnish cache server upgrade Home Rmckeel's picture Submitted by Rmckeel(297) Contributor 22 October, 2012 - 07:23 Semantic Mediawiki Semantic Forms update developer Incentives and Policies Semantic Mediawiki upgrade Utility Rates We have just updated Semantic Forms on OpenEI to version 2.4 to enable some upgrades to the utility rate forms (thanks Teresa!). If you see any problems in forms you use on OpenEI, please notify us by commenting on this

324

The D0 detector upgrade  

SciTech Connect

The Fermilab collider program is undergoing a major upgrade of both the accelerator complex and the two detectors. Operation of the Tevatron at luminosities upwards of ten time that currently provided will occur in early 1999 after the commissioning of the new Fermilab Main Injector. The D0 upgrade program has been established to deliver a detector that will meet the challenges of this environment. A new magnetic tracker consisting of a superconducting solenoid, a silicon vertex detector, a scintillating fiber central tracker, and a central preshower detector will replace the current central tracking and transition radiation chambers. We present the design and performance capabilities of these new systems and describe results from physics simulations that demonstrate the physics reach of the upgraded detector.

Bross, A.D.

1995-02-01T23:59:59.000Z

325

State-of-the-art sports facility's HVAC  

SciTech Connect

This article describes the HVAC systems design to keep Cleveland's new Gateway sports and entertainment complex comfortable. This magnificent new facility embraces the 42,000-seat Jacobs Field, with its natural grass playing surface, and the 21,000-seat Arena at Gateway (the official name will be announced at its August 1 opening). The Arena is the new home of the Cleveland Cavaliers NBA basketball team and the Lumberjacks IHL ice hockey team. Other events that will be held here include arena football, circuses, ice shows, and concerts. It is anticipated that the Arena will be in use in excess of 200 days a year for these and other functions. The ballpark and the arena are separated by Gateway Plaza, a large illuminated public space that also will be the site of various entertainment events. An air conditioned pedestrian bridge, approximately 0.7 miles in length, connects the Arena with the Regional Transit Authority's downtown rapid transit station. Other enclosed walkways connect the Arena with two parking garages (3,158 vehicles total) and the larger garage with Jacobs Field.

Horton, M.K. (Gateway Sports Complex, Cleveland, OH (United States))

1994-08-01T23:59:59.000Z

326

A Quasi-Dynamic HVAC and Building Simulation Methodology  

E-Print Network (OSTI)

This thesis introduces a quasi-dynamic building simulation methodology which complements existing building simulators by allowing transient models of HVAC (heating, ventilating and air-conditioning) systems to be created in an analogous way to their design and simulated in a computationally efficient manner. The methodology represents a system as interconnected, object-oriented sub-models known as components. Fluids and their local properties are modeled using discrete, incompressible objects known as packets. System wide pressure and flow rates are modeled similar to electrical circuit models. Transferring packets between components emulates fluid flow, while the system wide fluid circuit formed by the components' interconnections determines system wide pressures and flow rates. A tool named PAQS, after the PAacketized Quasi-dynamic Simulation methodology, was built to demonstrate the described methodology. Validation tests of PAQS found that its steady state energy use predictions differed less than 3% from a comparable steady state model. PAQS was also able to correctly model the transient behavior of a dynamic linear analytical system.

Davis, Clinton Paul

2012-05-01T23:59:59.000Z

327

Compression effects on pressure loss in flexible HVAC ducts  

SciTech Connect

A study was conducted to evaluate the effect of compression on pressure drop in flexible, spiral wire helix core ducts used in residential and light commercial applications. Ducts of 6 inches, 8 inches and 10 inches (150, 200 and 250 mm) nominal diameters were tested under different compression configurations following ASHRAE Standard 120-1999--Methods of Testing to Determine Flow Resistance of HVAC Air Ducts and Fittings. The results showed that the available published references tend to underestimate the effects of compression. The study demonstrated that moderate compression in flexible ducts, typical of that often seen in field installations, could increase the pressure drop by a factor of four, while further compression could increase the pressure drop by factors close to ten. The results proved that the pressure drop correction factor for compressed ducts cannot be independent of the duct size, as suggested by ASHRAE Fundamentals, and therefore a new relationship was developed for better quantification of the pressure drop in flexible ducts. This study also suggests potential improvements to ASHRAE Standard 120-1999 and provides new data for duct design.

Abushakra, Bass; Walker, Iain S.; Sherman, Max H.

2002-07-01T23:59:59.000Z

328

Evaluation of flow capture techniques for measuring HVAC grilleairflows  

SciTech Connect

This paper discusses the accuracy of commercially available flow hoods for residential applications. Results of laboratory and field tests indicate these hoods can be inadequate to measure airflows in residential systems, and there can be large measurement discrepancies between different flow hoods. The errors are due to poor calibrations, sensitivity of the hoods to grille airflow non-uniformities, and flow changes from added flow resistance. It is possible to obtain reasonable results using some flow hoods if the field tests are carefully done, the grilles are appropriate, and grille location does not restrict flow hood placement. We also evaluated several simple flow capture techniques for measuring grille airflows that could be adopted by the HVAC industry and homeowners as simple diagnostics. These simple techniques can be as accurate as commercially available devices. Our test results also show that current calibration procedures for flow hoods do not account for field application problems. As a result, agencies such as ASHRAE or ASTM need to develop a new standard for flow hood calibration, along with a new measurement standard to address field use of flow capture techniques.

Walker, Iain S.; Wray, Craig P.

2002-11-01T23:59:59.000Z

329

ENERGY STAR Building Upgrade Manual Chapter 9: Heating and Cooling...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 9: Heating and Cooling Upgrades The Building Upgrade...

330

Economic Comparison of HVAC and HVDCSolutions for Large Offshore Wind Farms underSpecial Consideration of Reliability.  

E-Print Network (OSTI)

?? An economic comparison of several HVAC-HVDC transmission systems from large offshore windfarms is presented. The power output from the offshore windfarm is modeled by… (more)

Lazaridis, Lazaros

2005-01-01T23:59:59.000Z

331

Demand Response-Enabled Model Predictive HVAC Load Control in Buildings using Real-Time Electricity Pricing.  

E-Print Network (OSTI)

??A practical cost and energy efficient model predictive control (MPC) strategy is proposed for HVAC load control under dynamic real-time electricity pricing. The MPC strategy… (more)

Avci, Mesut

2013-01-01T23:59:59.000Z

332

A plug and play framework for an HVAC air handling unit and temperature sensor auto recognition technique.  

E-Print Network (OSTI)

??A plug and play framework for an HVAC air handling unit control system is proposed in this study. This is the foundation and the first… (more)

Zhou, Xiaohui

2010-01-01T23:59:59.000Z

333

Tecniche di apprendimento automatico per la rilevazione di malfunzionamenti in sistemi HVAC: il caso di un refrigeratore di liquido centrifugo.  

E-Print Network (OSTI)

??Malfunzionamenti in sistemi di riscaldamento, ventilazione e aria condizionata (HVAC) possono essere rilevati attraverso sitemi di Fault Detection. Spesso le informazioni riguardanti guasti e anomalie… (more)

Corazzol, Chiara

2013-01-01T23:59:59.000Z

334

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

335

Framework combining static optimization, dynamic scheduling and decision analysis applicable to complex primary HVAC&R systems.  

E-Print Network (OSTI)

??The primary objective of this work is to propose a general and computationally efficient methodology for dynamic scheduling and optimal control of primary HVAC&R systems… (more)

Jiang, Wei

2006-01-01T23:59:59.000Z

336

RELIABILITY ANALYSIS OF THE ELECTRICAL POWER DISTRIBUTION SYSTEM TO SELECTED PORTIONS OF THE NUCLEAR HVAC SYSTEM  

Science Conference Proceedings (OSTI)

A design requirement probability of 0.01 or less in a 4-hour period ensures that the nuclear heating, ventilation, and air-conditioning (HVAC) system in the primary confinement areas of the Dry Transfer Facilities (DTFs) and Fuel Handling Facility (FHF) is working during a Category 1 drop event involving commercial spent nuclear fuel (CSNF) assemblies (BSC 2004a , Section 5.1.1.48). This corresponds to an hourly HVAC failure rate of 2.5E-3 per hour or less, which is contributed to by two dominant causes: equipment failure and loss of electrical power. Meeting this minimum threshold ensures that a Category 1 initiating event followed by the failure of HVAC is a Category 2 event sequence. The two causes for the loss of electrical power include the loss of offsite power and the loss of onsite power distribution. Thus, in order to meet the threshold requirement aforementioned, the failure rate of mechanical equipment, loss of offsite power, and loss of onsite power distribution must be less than or equal to 2.5E-3 per hour for the nuclear HVAC system in the primary confinement areas of the DTFs and FHF. The loss of offsite power occurs at a frequency of 1.1E-5 per hour (BSC 2004a, Section 5.1.1.48). The purpose of this analysis is to determine the probability of occurrence of the unavailability of the nuclear HVAC system in the primary confinement areas of the DTFs and FHF due to loss of electrical power. In addition, this analysis provides insights on the contribution to the unavailability of the HVAC system due to equipment failure. The scope of this analysis is limited to finding the frequency of loss of electrical power to the nuclear HVAC system in the primary confinement areas of the DTFs and FHF.

N. Ramirez

2004-12-16T23:59:59.000Z

337

CATEGORICAL EXCLUSION FOR 331 BUILDING IRRIGATION UPGRADES,  

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

EXCLUSION FOR 331 BUILDING IRRIGATION UPGRADES, EXCLUSION FOR 331 BUILDING IRRIGATION UPGRADES, 300 AREA, HANFORD SITE, RICHLAND, WASHINGTON Proposed Action: The U.S. Department of Energy (DOE), Pacific Northwest Site Office (PNSO) proposes to upgrade a landscaping irrigation system in the 300 Area. Location of Action: In the landscaped area around the 331 Building, Hanford Site Description of the Proposed Action: The proposed action is to upgrade the existing 331 Building landscaping irrigation system by using nearby aquaculture effluent instead of

338

Application of Functional Link Neural Network to HVAC Thermal Dynamic System Identification  

E-Print Network (OSTI)

Abstract — Recent efforts to incorporate aspects of artificial intelligence into the design and operation of automatic control systems have focused attention on techniques such as fuzzy logic, artificial neural networks, and expert systems. The use of computers for direct digital control highlights the recent trend toward more effective and efficient heating, ventilating, and airconditioning (HVAC) control methodologies. Researchers in the HVAC field have stressed the importance of self learning in building control systems and have encouraged further studies in the integration of optimal control and other advanced techniques into the formulation of such systems. Artificial neural networks can also be used to emulate the plant dynamics, in order to estimate future plant outputs and obtain plant input/output sensitivity information for on-line neural control adaptation. This paper describes a functional link neural network approach to performing the HVAC thermal dynamic system identification. Methodologies to reduce inputs of the functional link network to reduce the complexity and speed up the training speed will be presented. Analysis and comparison between the functional link network approach and the conventional network approach for the HVAC thermal modeling will also be presented. Index Terms—Functional link, HVAC, intelligent control, neural network, system identification.

Jason Teeter; Mo-yuen Chow; Senior Member

1998-01-01T23:59:59.000Z

339

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

AS, Marnay, C. Distributed generation investment by aand Upgrade in Distributed Generation under Uncertaintyand Upgrade in Distributed Generation under Uncertainty ?

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

340

Metro Environmental: The impact of training HVAC technicians using the SightPros-VirTechs system for remote, wireless, Internet video assistance.  

E-Print Network (OSTI)

??This qualitative study explored the overall impact of training HVAC technicians using the SightPros-VirTechs system for remote, wireless, internet video assistance at a small HVAC… (more)

Daily, Ellen Wilmoth Matthews

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for  

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

Critical Question #4: What are the Best Off-the-Shelf HVAC Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for Low-Load, High-Performance Homes and Apartments? Critical Question #4: What are the Best Off-the-Shelf HVAC Solutions for Low-Load, High-Performance Homes and Apartments? What is currently in the market? What are the limitations of these systems? What are the desired specifications for these systems? What are the realistic space conditioning loads of these high-performance homes and apartments? cq4_forced_air_systems_walker.pdf cq4_simplified_space_cond_prahl.pdf cq4_ground_heat_exchanger_im.pdf More Documents & Publications Track C - Market-Driven Research Solutions Track B - Critical Guidance for Peak Performance Homes Energy Storage & Power Electronics 2008 Peer Review - Power Electronics

342

HVAC vs. Space Heaters: Which is More Efficient? | Department of Energy  

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

HVAC vs. Space Heaters: Which is More Efficient? HVAC vs. Space Heaters: Which is More Efficient? HVAC vs. Space Heaters: Which is More Efficient? January 10, 2011 - 4:27pm Addthis Andrea Spikes Communicator at DOE's National Renewable Energy Laboratory I live in Colorado, and when it's cold it is very, very cold. Since I hate paying high heating bills, I typically have my thermostat set to a chilly 62°F. My husband and I have gotten used to this, and really like being able to use a warm comforter while the air stays cooler. There are some nights, however, that even this setting seems too high and the heater is running a lot more than I'd like it to. When it's below 0° overnight, or even sometimes during the day, we occasionally break out our oil-filled space heater when we're only using one room. That has me

343

HVAC vs. Space Heaters: Which is More Efficient? | Department of Energy  

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

HVAC vs. Space Heaters: Which is More Efficient? HVAC vs. Space Heaters: Which is More Efficient? HVAC vs. Space Heaters: Which is More Efficient? January 10, 2011 - 4:27pm Addthis Andrea Spikes Communicator at DOE's National Renewable Energy Laboratory I live in Colorado, and when it's cold it is very, very cold. Since I hate paying high heating bills, I typically have my thermostat set to a chilly 62°F. My husband and I have gotten used to this, and really like being able to use a warm comforter while the air stays cooler. There are some nights, however, that even this setting seems too high and the heater is running a lot more than I'd like it to. When it's below 0° overnight, or even sometimes during the day, we occasionally break out our oil-filled space heater when we're only using one room. That has me

344

Realt-Time Building Occupancy Sensing for Supporting Demand Driven HVAC Operations  

E-Print Network (OSTI)

Accurate knowledge of localised and real-time occupancy numbers can have compelling control applications for Heating, Ventilation and Air-conditioning (HVAC) systems. However, a precise and reliable measurement of occupancy still remains difficult. Existing technologies are plagued with a number of issues ranging from unreliable data, maintaining privacy and sensor drift. More effective control of HVAC systems may be possible using a smart sensing network for occupancy detection. A low-cost and non-intrusive sensor network is deployed in an open-plan office, combining information such as sound level and motion, to estimate occupancy numbers, while an infrared camera is implemented to establish ground truth occupancy levels. Symmetrical uncertainty analysis is used for feature selection, and selected multi-sensory features are fused using a neuralnetwork model, with occupancy estimation accuracy reaching up to 84.59%. The proposed system offers promising opportunities for reliable occupancy sensing, capable of supporting demand driven HVAC operations.

Ekwevugbe, T.; Brown, N.; Pakka, V.

2013-01-01T23:59:59.000Z

345

On the capacity limits of hvac duct channel for high-speed internet access  

E-Print Network (OSTI)

Abstract—In this paper, we report theoretical and experimental channel-capacity estimates of heating, ventilation, and air conditioning (HVAC) ducts based on multicarrier transmission that uses-ary quadrature amplitude modulation and measured channel responses at the 2.4-GHz industrial, scientific, and medical band. It is shown theoretically that data rates in excess of 1 Gb/s are possible over distances up to 500 m in straight ducts in which reflections have been suppressed. Our experimental results also show that even in the case of more complex HVAC duct networks (i.e., HVAC duct networks that include bends, tees, etc.) data rates over 2 Gb/s are possible. Our estimations in this case are valid for distances of up to 22 m, which was the maximum distance of our experimental setup. These experimental results, measured with a large-scale testbed set

Ariton E. Xhafa; Ozan K. Tonguz; Ahmet G. Cepni; Student Member; Daniel D. Stancil; Pavel V. Nikitin; Dagfin Brodtkorb

2005-01-01T23:59:59.000Z

346

An Application of State-Of-The-Art HVAC and Building Systems  

E-Print Network (OSTI)

This case study describes the successful application of state-of-the-art HVAC and building systems at a large commercial office and industrial facility. The facility's exterior envelope systems, HVAC systems, lighting systems, energy conservation systems, exhaust/heat recovery/make-up air systems, water cooling systems, compressed air systems, electrical distribution systems, water heating systems, and other systems and measures taken are each discussed in detail. The important role that energy engineering played in the overall planning, design, and management of the project is given particular emphasis. Also, the engineering strategies used to integrate energy efficiency, performance optimization, current technology, and cost effectiveness are underscored throughout.

Fiorino, D. P.

1988-09-01T23:59:59.000Z

347

About: Why Energy Efficiency Upgrades  

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

Why Energy Efficiency Upgrades Why Energy Efficiency Upgrades Two photos side by side showing energy loss through the use of infrared technology. As part of a home energy evaluation, an energy professional can use an infrared camera to pinpoint where air leaks and drafts are occurring in your home or building. Although normally difficult to see, these infrared photos clearly show in color where energy losses are occurring in a typical house. How We Use Energy in Our Buildings How We Use Energy in Our Homes (% of Energy Consumption) A pie chart illustrating the following breakdown: Space heating 43%, space cooling 9.7%, water heating 17.1%, lighting 6.2%, refrigeration 3.9%, electronics 3%, wet cleaning 3.2%, cooking 3.1%, computers 1.6%. Source: 2010 Buildings Energy Data Book, Table 2.1.6

348

MIPP Plastic Ball electronics upgrade  

SciTech Connect

An upgrade electronics design for Plastic Ball detector is described. The Plastic Ball detector was a part of several experiments in the past and its back portion (proposed to be used in MIPP) consists of 340 photomultipliers equipped with a sandwich scintillator. The scintillator sandwich has fast and slow signal component with decay times 10 ns and 1 {micro}s respectively. The upgraded MIPP experiment will collect up to 12,000 events during each 4 second spill and read them out in {approx}50 seconds between spills. The MIPP data acquisition system will employ deadtime-less concept successfully implemented in Muon Electronics of Dzero experiment at Fermilab. An 8-channel prototype design of the Plastic Ball Front End (PBFE) implementing these requirements is discussed. Details of the schematic design, simulation and prototype test results are discussed.

Baldin, Boris; /Fermilab

2009-01-01T23:59:59.000Z

349

High-Speed Internet Access via HVAC Ducts: A New Approach Daniel D. Stancil, Ozan K. Tonguz, Ariton Xhafa, Ahmet Cepni, and Pavel Nikitin  

E-Print Network (OSTI)

High-Speed Internet Access via HVAC Ducts: A New Approach Daniel D. Stancil, Ozan K. Tonguz, Ariton conditioning (HVAC) ducts for indoor wireless transmission systems and networks. Mea- surements and system to 100 Mbps should be possible, when HVAC system is used in con- junction with OFDM technology. Keywords

Stancil, Daniel D.

350

A Simple Path Loss Prediction Model for HVAC Systems O. K. Tonguz, D. D. Stancil, A. E. Xhafa, A. G. Cepni, P. V. Nikitin  

E-Print Network (OSTI)

1 A Simple Path Loss Prediction Model for HVAC Systems O. K. Tonguz, D. D. Stancil, A. E. Xhafa, A, and air conditioning (HVAC) cylindrical ducts in 2.4-2.5 GHz frequency band. The model we propose predicts the average power loss between a transmitter-receiver pair in an HVAC duct network. This prediction model

Stancil, Daniel D.

351

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 51, NO. 5, MAY 2003 945 Propagation Model for the HVAC Duct as a  

E-Print Network (OSTI)

for the HVAC Duct as a Communication Channel Pavel V. Nikitin, Member, IEEE, Daniel D. Stancil, Senior Member (HVAC) ducts in buildings are typically hollow metal pipes which can be used as waveguides to carry such a communication system. This paper presents a propagation model for a straight HVAC duct terminated at both ends

Stancil, Daniel D.

352

The FNAL Injector Upgrade Status  

SciTech Connect

The new FNAL H{sup -} injector upgrade is currently being tested before installation in the Spring 2012 shutdown of the accelerator complex. This line consists of an H{sup -} source, low energy beam transport (LEBT), 200 MHz RFQ and medium energy beam transport (MEBT). Beam measurements have been performed to validate the design before installation. The results of the beam measurements are presented in this paper.

Tan, C.Y.; Bollinger, D.S.; Duel, K.L.; Karns, P.R.; Lackey, J.R.; Pellico, W.A; Scarpine, V.E.; Tomlin, R.E.; /Fermilab

2012-05-14T23:59:59.000Z

353

Improving fuzzy logic controllers obtained by experts: a case study in HVAC systems  

Science Conference Proceedings (OSTI)

One important Artificial Intelligence tool for automatic control is the use of fuzzy logic controllers, which are fuzzy rule-based systems comprising expert knowledge in form of linguistic rules. These rules are usually constructed by an expert in the ... Keywords: Fuzzy logic controllers, Genetic tuning, HVAC systems, Linguistic 2-tuples representation, Linguistic 3-tuples representation, Rule selection

Rafael Alcalá; Jesús Alcalá-Fdez; María José Gacto; Francisco Herrera

2009-08-01T23:59:59.000Z

354

Automatic two way synchronization between server and multiple clients for HVAC system  

Science Conference Proceedings (OSTI)

The authors study different two way synchronization methods between a server and distributed clients. Client-server architectures are used to control multiple instances from center. Hard-coded embedded controllers are replaced by embedded controllers ... Keywords: HVAC, data synchronization, embedded systems, multi-agent systems, online file storage, thick client

Anton Tyukov; Adriaan Brebels; Maxim Shcherbakov

2011-12-01T23:59:59.000Z

355

Computational Study on Thermal Properties of HVAC System with Building Structure Thermal Storage  

E-Print Network (OSTI)

Building structure thermal storage (BSTS) HVAC systems can store heat during nighttime thermal storage operation (nighttime operation hours) by using off-peak electricity and release it in the daytime air-conditioning operation (daytime operation hours) by utilizing a large amount of the thermal capacity of building structures such as beams, columns and floors composed of concrete. These BSTS systems have recently been considered as one method for leveling hourly electricity demands for HVAC on a day-to-day basis. Through a simulation using a model developed with experimental data, this paper describes how various factors for the design and operation of a BSTS quantitatively affect the charge/discharge performances of a HVAC system. As a result, the following was revealed: the thermal performance of the system is strongly influenced by the daily heat storage operation hours, supply air volume and supply air temperature during the nighttime operation hours, stored heat caused the total daytime cooling extraction to decrease by 11% to 58% and the daily total cooling extraction through nighttime to daytime to increase by 4% to 17% compared with the values of non- thermal storage HVAC system.

Sato, Y.; Sagara, N.; Ryu, Y.; Maehara, K.; Nagai, T.

2007-01-01T23:59:59.000Z

356

A Particle Swarm Optimization Approach for Optimal Design of PID Controller for Temperature Control in HVAC  

Science Conference Proceedings (OSTI)

Particle swarm optimization (PSO) is a novel evolutionary algorithm which has a better convergence rate and computation precision compared with other evolutionary algorithms. From the perspective of optimization, the self-tuning of PID controller parameters ... Keywords: PSO, PID, HVAC, Optimization, Particle Swarm Optimization

Zhang Jun; Zhang Kanyu

2011-01-01T23:59:59.000Z

357

OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy  

E-Print Network (OSTI)

control conditioning strategies. Using strategies based on sensor network occupancy model predictions, weOBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy Varick L. Erickson, Miguel Á Descriptors I.6.5 [Simulation and Modeling]: Model Development; J.7 [Computers In Other Systems]: Command

Cerpa, Alberto E.

358

Energy Savings with Energy-Efficient HVAC Systems in Commercial Buildings of Hong Kong  

E-Print Network (OSTI)

Hong Kong has seen a dramatic increase in energy consumption in recent years, particularly electricity use in commercial buildings. The growth of electricity demand in future years is crucial both economically and environmentally. As over half of the electricity in Hong Kong is consumed by commercial buildings, and heating, ventilation and air-conditioning (HVAC) is the largest end-user in such buildings, improving the efficiency of HVAC systems in commercial buildings, is the key measure to take in Hong Kong for sustainable development. In this study, the major factors influencing the electricity use of HVAC systems are studied with the building energy simulation program EnergyPlus, which include chiller efficiency, space cooling temperature, variable vs. constant air flow, fan efficiency, lighting intensity and building envelope. From the analysis of the simulation results, it can be found that substantial energy-saving potential exists through improving the efficiency of HVAC systems in commercial buildings, and a combination of desirable system parameters for energy efficiency of commercial building is proposed.

Yang, J.; Chan, K.; Wu, X.

2006-01-01T23:59:59.000Z

359

IFC HVAC interface to EnergyPlus - A case of expanded interoperability for energy simulation  

SciTech Connect

Tedious manual input of data that define a building, its systems and its expected pattern of use and operating schedules for building energy performance simulation has in the past diverted time and resources from productive simulation runs. In addition to its previously released IFCtoIDF utility that semiautomates the import of building geometry, the new IFC HVAC interface to EnergyPlus (released at the end of 2003) makes it possible to import and export most of the data that define HVAC equipment and systems in a building directly from and to other IFC compatible software tools. This reduces the manual input of other data needed for successful simulation with EnergyPlus to a minimum. The main purpose of this new interface is to enable import of HVAC equipment and systems definitions, generated by other IFC compatible software tools (such as HVAC systems design tools) and data bases, into EnergyPlus, and to write such definitions contained in EnergyPlus input files to the original IFC files from which building geometry was extracted for the particular EnergyPlus input. In addition, this interface sets an example for developers of other software tools how to import and/or export data other than building geometry from and/or into EnergyPlus. This paper describes the necessary simplifications and shortcuts incorporated in this interface, its operating environment, interface architecture, and the basic conditions and methodology for its use with EnergyPlus.

Bazjanac, Vladimir; Maile, Tobias

2004-03-29T23:59:59.000Z

360

Identification of chiller model in HVAC system using fuzzy inference rules with Zadeh's implication operator  

Science Conference Proceedings (OSTI)

In the heating, ventilating, and air-conditioning (HVAC) system, chiller is the central part and one of the primary energy consumers. For the purpose of saving energy, the identification of the chiller model is of great significance. In this paper, based ... Keywords: chiller, fuzzy inference system, implication operator, improved genetic algorithm

Yukui Zhang; Shiji Song; Cheng Wu; Kang Li

2010-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

HVAC Equipment Design Options for Near-Zero-Energy Homes (NZEH) -A Stage 2 Scoping Assessment  

SciTech Connect

Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Conventional unitary equipment and system designs have matured to a point where cost-effective, dramatic efficiency improvements that meet near-zero-energy housing (NZEH) goals require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. This report describes results of a scoping assessment of HVAC system options for NZEH homes. ORNL has completed a preliminary adaptation, for consideration by The U.S. Department of Energy, Energy Efficiency and Renewable Energy Office, Building Technologies (BT) Program, of Cooper's (2001) stage and gate planning process to the HVAC and Water Heating element of BT's multi-year plan, as illustrated in Figure 1. In order to adapt to R&D the Cooper process, which is focused on product development, and to keep the technology development process consistent with an appropriate role for the federal government, the number and content of the stages and gates needed to be modified. The potential federal role in technology development involves 6 stages and 7 gates, but depending on the nature and status of the concept, some or all of the responsibilities can flow to the private sector for product development beginning as early as Gate 3. In the proposed new technology development stage and gate sequence, the Stage 2 'Scoping Assessment' provides the deliverable leading into the Gate 3 'Scoping Assessment Screen'. This report is an example of a Stage 2 deliverable written to document the screening of options against the Gate 3 criteria and to support DOE decision making and option prioritization. The objective of this scoping assessment was to perform a transparent evaluation of the HVAC system options for NZEH based on the applying the Gate 3 criteria uniformly to all options.

Baxter, Van D [ORNL

2005-11-01T23:59:59.000Z

362

Energy Upgrade California | Department of Energy  

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

Upgrade California Upgrade California Energy Upgrade California < Back Eligibility Multi-Family Residential Residential Savings Category Home Weatherization Commercial Weatherization Heating & Cooling Commercial Heating & Cooling Cooling Other Sealing Your Home Ventilation Manufacturing Heating Windows, Doors, & Skylights Program Info Funding Source The American Reinvestment and Recovery Act of 2009, ratepayer funds State California Program Type State Rebate Program Rebate Amount Basic Upgrade Package: 1,000 Advance Upgrade Package: 1,500 - 4,000 The Energy Upgrade California program serves as a one-stop shop for California homeowners who want to improve the energy efficiency of their homes. The program connects homeowners with qualified contractors, and helps homeowners find all the available incentives from their local

363

Main Generator Excitation System Upgrade/Retrofit  

Science Conference Proceedings (OSTI)

Upgrading or replacing even a portion of the excitation system of a generator can provide increased reliability and availability while simultaneously decreasing operational and maintenance costs. However, the upgrade or retrofit of an excitation system is a major cost involving some degree of implementation, installation, or performance risk. This report provides lessons learned, experiences, practices and solutions from plants that have installed excitation system retrofits and upgrades. This informatio...

2005-11-07T23:59:59.000Z

364

The Upgraded D0 detector  

Science Conference Proceedings (OSTI)

The D0 experiment enjoyed a very successful data-collection run at the Fermilab Tevatron collider between 1992 and 1996. Since then, the detector has been upgraded to take advantage of improvements to the Tevatron and to enhance its physics capabilities. We describe the new elements of the detector, including the silicon microstrip tracker, central fiber tracker, solenoidal magnet, preshower detectors, forward muon detector, and forward proton detector. The uranium/liquid-argon calorimeters and central muon detector, remaining from Run I, are discussed briefly. We also present the associated electronics, triggering, and data acquisition systems, along with the design and implementation of software specific to D0.

Abazov, V.M.; Abbott, B.; Abolins, M.; Acharya, B.S.; Adams, D.L.; Adams, M.; Adams, T.; Agelou, M.; Agram, J.-L.; Ahmed, S.N.; Ahn, S.H.; Ahsan, M.; Alexeev, G.D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G.A.; Anastasoaie, M.; Andeen, T.; Anderson, J.T.; Anderson, S.; /Buenos Aires U. /Rio de Janeiro, CBPF /Sao Paulo, IFT /Alberta U. /Simon Fraser U. /York U., Canada /McGill U. /Beijing, Inst. High Energy Phys. /Hefei, CUST /Andes U., Bogota /Charles U. /Prague, Tech. U. /Prague, Inst. Phys. /San Francisco de Quito U. /Clermont-Ferrand U. /LPSC, Grenoble /Marseille, CPPM /Orsay, LAL /Paris U., VI-VII /DAPNIA, Saclay /Strasbourg, IReS

2005-07-01T23:59:59.000Z

365

Upgrade Boilers with Energy-Efficient Burners  

SciTech Connect

This revised ITP steam tip sheet on upgrading boilers provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

2006-01-01T23:59:59.000Z

366

Better Buildings Neighborhood Program: Energy Efficiency Upgrades...  

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

PYC made the recommended energy efficiency upgrades, which included new insulation and air sealing, a new hot water heater, programmable thermostats, improved lighting, and new...

367

ENERGY STAR Building Upgrade Manual | ENERGY STAR  

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

ENERGY STAR Building Upgrade Manual Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new...

368

Analysis Efforts Supporting NSTX Upgrades  

SciTech Connect

The National Spherical Torus Experiment (NSTX) is a low aspect ratio, spherical torus (ST) configuration device which is located at Princeton Plasma Physics Laboratory (PPPL) This device is presently being updated to enhance its physics by doubling the TF field to 1 Tesla and increasing the plasma current to 2 Mega-amperes. The upgrades include a replacement of the centerstack and addition of a second neutral beam. The upgrade analyses have two missions. The first is to support design of new components, principally the centerstack, the second is to qualify existing NSTX components for higher loads, which will increase by a factor of four. Cost efficiency was a design goal for new equipment qualification, and reanalysis of the existing components. Showing that older components can sustain the increased loads has been a challenging effort in which designs had to be developed that would limit loading on weaker components, and would minimize the extent of modifications needed. Two areas representing this effort have been chosen to describe in more details: analysis of the current distribution in the new TF inner legs, and, second, analysis of the out-of-plane support of the existing TF outer legs.

H.Zhang, P. Titus, P. Rogoff, A.Zolfaghari, D. Mangra, M. Smith

2010-11-29T23:59:59.000Z

369

Detection and diagnosis of faults and energy monitoring of HVAC systems with least-intrusive power analysis  

E-Print Network (OSTI)

Faults indicate degradation or sudden failure of equipment in a system. Widely existing in heating, ventilating, and air conditioning (HVAC) systems, faults always lead to inefficient energy consumption, undesirable indoor ...

Luo, Dong, 1966-

2001-01-01T23:59:59.000Z

370

Research Laboratory Experiments with Energy Efficiency Upgrades |  

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

Research Laboratory Experiments with Energy Efficiency Upgrades Research Laboratory Experiments with Energy Efficiency Upgrades Research Laboratory Experiments with Energy Efficiency Upgrades August 30, 2012 - 11:52am Addthis Energy efficiency upgrades -- such as geothermal heating and cooling, nanogel-filled windows, and lighting sensors -- will help the University of Kentucky Center for Applied Energy Research reduce energy use and save money. | Photo courtesy of the University of Kentucky. Energy efficiency upgrades -- such as geothermal heating and cooling, nanogel-filled windows, and lighting sensors -- will help the University of Kentucky Center for Applied Energy Research reduce energy use and save money. | Photo courtesy of the University of Kentucky. Julie McAlpin Communications Liaison, State Energy Program

371

Future Upgrades | Brookhaven and the LHC  

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

Future Upgrades Future Upgrades Magnetic field inside a Nb3Sn quadropole magnet Magnetic field inside a Nb3Sn quadropole magnet. Brookhaven leads various technical coordination efforts for the upgrade of the ATLAS detector, including constructing the new silicon tracker, liquid argon electronics, and the new muon chambers. Brookhaven also contributes to the commissioning and future upgrade of the LHC itself in two areas: accelerator physics and superconducting magnets. This work is carried out as part of the U.S. LHC Accelerator Research Program (LARP) in collaboration with Fermilab, Lawrence Berkeley National Lab, and the Stanford Linear Accelerator Center. The ultimate goal of the upgrade program is to increase the rate and efficiency of particle collisions, a measure known as luminosity.

372

MMCR Upgrades: Present Status and Future Plans  

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

MMCR Upgrades: Present Status and Future Plans MMCR Upgrades: Present Status and Future Plans K. B. Widener and A. S. Koontz Pacific Northwest National Laboratory Richland, Washington K. P. Moran and K. A. Clark National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado C. Chander STC xxxxxxxxx M. A. Miller and K. L. Johnson Brookhaven National Laboratory Upton, New York Abstract In September 2003, the Southern Great Plains (SGP) millimeter wave cloud radar (MMCR) was upgraded to a new digital signal processor that significantly increases the temporal resolution and the processing capability of the MMCR. The Barrow MMCR upgrade will be completed in early 2004. We will discuss the hardware and software C40 upgrade to the MMCRs at SGP and Barrow and the plans

373

Research Laboratory Experiments with Energy Efficiency Upgrades |  

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

Research Laboratory Experiments with Energy Efficiency Upgrades Research Laboratory Experiments with Energy Efficiency Upgrades Research Laboratory Experiments with Energy Efficiency Upgrades August 30, 2012 - 11:52am Addthis Energy efficiency upgrades -- such as geothermal heating and cooling, nanogel-filled windows, and lighting sensors -- will help the University of Kentucky Center for Applied Energy Research reduce energy use and save money. | Photo courtesy of the University of Kentucky. Energy efficiency upgrades -- such as geothermal heating and cooling, nanogel-filled windows, and lighting sensors -- will help the University of Kentucky Center for Applied Energy Research reduce energy use and save money. | Photo courtesy of the University of Kentucky. Julie McAlpin Communications Liaison, State Energy Program

374

APS Upgrade | Advanced Photon Source  

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

APS APS View Larger The brightness and energy of x-ray beams are critical properties for research. Higher brightness means more x-rays can be focused onto a smaller, laser-like spot, allowing researchers to gather more data in greater detail in less time. Higher energies allow x-rays to penetrate deeper inside materials to reveal crucial information about a material's structure and function. The combination of high brightness and high energy allows the observation and imaging - in real time - of fast and ultrafast technologically important processes, including fuel sprays, magnetic switching, and biological processes in living organisms. The APS Upgrade project will increase the brightness of the APS high-energy (hard) x-ray beams. This will equip researchers for the groundbreaking

375

APS Upgrade | Advanced Photon Source  

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

Workshop on new science opportunities provided by a multi-bend achromat lattice at the APS APS-U MBA Lattice Workshop Registration is now closed. Please contact Diane Wilkinson ext. 7810 or a member of the Workshop Organizing Committee for changes or modifications to your registration. Submit Comments, Suggestions, and Ideas for MBA Lattice Workshop October 21-22 Advanced Photon Source Argonne National Lab The Advanced Photon Source Upgrade is focused on delivering a powerful, versatile facility for science using high-brightness, high-energy X-rays. At APS, and around the light source community, scientists have been developing storage ring designs that push closer to the ultimate diffraction limit for X-ray sources. A recent report by the Basic Energy Sciences Advisory Committee, which advises the Director of the U.S.

376

Energy Efficiency Through Lighting Upgrades  

Science Conference Proceedings (OSTI)

Lighting upgrades including neon to LED, incandescent to CFL's and T-12 to T-8 and T-5's were completed through this grant. A total of 16 Chickasaw nation facilities decreased their carbon footprint because of these grant funds. Calculations used were based on comparing the energy usage from the previous year�¢����s average and the current energy usage. For facilities without a full year's set of energy bills, the month after installation was compared to the same month from the previous year. Overall, the effect the lighting change-outs had for the gaming centers and casinos far exceeded expectations. For the Madill Gaming Center; both an interior and exterior upgrade was performed which resulted in a 31% decrease in energy consumption. This same reduction was seen in every facility that participated in the grant. Just by simply changing out light bulbs to newer energy efficient equivalents, a decrease in energy usage can be achieved and this was validated by the return on investment seen at Chickasaw Nation facilities. Along with the technical project tasks were awareness sessions presented at Chickasaw Head Starts. The positive message of environmental stewardship was passed down to head start students and passed along to Chickasaw employees. Excitement was created in those that learned what they could do to help reduce their energy bills and many followed through and took the idea home. For a fairy low cost, the general public can also use this technique to lower their energy consumption both at home and at work. Although the idea behind the project was somewhat simple, true benefits have been gained through environmental awareness and reductions of energy costs.

Kara Berst; Maria Howeth

2010-06-01T23:59:59.000Z

377

Better Buildings Neighborhood Program: Why Energy Efficiency Upgrades  

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

About About Printable Version Share this resource Send a link to Better Buildings Neighborhood Program: Why Energy Efficiency Upgrades to someone by E-mail Share Better Buildings Neighborhood Program: Why Energy Efficiency Upgrades on Facebook Tweet about Better Buildings Neighborhood Program: Why Energy Efficiency Upgrades on Twitter Bookmark Better Buildings Neighborhood Program: Why Energy Efficiency Upgrades on Google Bookmark Better Buildings Neighborhood Program: Why Energy Efficiency Upgrades on Delicious Rank Better Buildings Neighborhood Program: Why Energy Efficiency Upgrades on Digg Find More places to share Better Buildings Neighborhood Program: Why Energy Efficiency Upgrades on AddThis.com... Our History Related Federal Programs Why Energy Efficiency Upgrades

378

EA-1321: Proposed Upgrade and Improvement of The National Synchrotron...  

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

Proposed Upgrade and Improvement of The National Synchrotron Light Source Complex at Brookhaven National Laboratory, Upton, New York EA-1321: Proposed Upgrade and Improvement of...

379

Using QECBs for Public Building Upgrades: Reducing Energy Bills...  

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

Public Building Upgrades: Reducing Energy Bills in the City of Philadelphia Title Using QECBs for Public Building Upgrades: Reducing Energy Bills in the City of Philadelphia...

380

ENERGY STAR Building Upgrade Manual Chapter 13: Retail Stores...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 13: Retail Stores The Building Upgrade Manual is a...

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

ENERGY STAR Building Upgrade Manual Chapter 7: Supplemental Load...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 7: Supplemental Load Reduction The Building Upgrade...

382

ENERGY STAR Building Upgrade Manual Chapter 6: Lighting | ENERGY...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 6: Lighting The Building Upgrade Manual is a...

383

ENERGY STAR Building Upgrade Manual Chapter 5: Retrocommissioning...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 5: Retrocommissioning The Building Upgrade Manual is...

384

ENERGY STAR Building Upgrade Manual Chapter 12: Hotels and Motels...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 12: Hotels and Motels The Building Upgrade Manual is...

385

ENERGY STAR Building Upgrade Manual Chapter 10: K-12 Schools...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 10: K-12 Schools The Building Upgrade Manual is a...

386

ENERGY STAR Building Upgrade Manual Chapter 4: Financing | ENERGY...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 4: Financing The Building Upgrade Manual is a...

387

Boiler Upgrades and Decentralizing Steam Systems Save Water and...  

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

Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at Naval Air Station Oceana Boiler Upgrades and Decentralizing Steam Systems Save Water and Energy at Naval...

388

Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes - Business Case Assessment  

SciTech Connect

The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Dramatic efficiency improvements are necessary to enable progress toward the NZEH goals, and will require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development. Eleven system concepts with central air distribution ducting and nine multi-zone systems were selected and their annual and peak demand performance estimated for five locations: Atlanta (mixed-humid), Houston (hot-humid), Phoenix (hot-dry), San Francisco (marine), and Chicago (cold). Performance was estimated by simulating the systems using the TRNSYS simulation engine (Solar Energy Laboratory et al. 2006) in two 1800-ft{sup 2} houses--a Building America (BA) benchmark house and a prototype NZEH taken from BEopt results at the take-off (or crossover) point (i.e., a house incorporating those design features such that further progress towards ZEH is through the addition of photovoltaic power sources, as determined by current BEopt analyses conducted by NREL). Results were summarized in a project report, 'HVAC Equipment Design options for Near-Zero-Energy Homes--A Stage 2 Scoping Assessment', ORNL/TM-2005/194 (Baxter 2005). The 2005 study report describes the HVAC options considered, the ranking criteria used, and the system rankings by priority. Table 1 summarizes the energy savings potential of the highest scoring options from the 2005 study for all five locations. All system options were scored by the ORNL building equipment research team and by William Goetzler of Navigant Consulting. These scores were reviewed by DOE/BT's Residential Integration program leaders and Building America team members. Based on these results, the two centrally ducted integrated heat pump (IHP) systems (air source and ground source versions) were selected for advancement to Stage 2 (Exploratory Development) business case assessments in FY06. This report describes results of these business case assessments. It is a compilation of three separate reports describing the initial business case study (Baxter 2006a), an update to evaluate the impact of an economizer cooling option (Baxter 2006b), and a second update to evaluate the impact of a winter humidification option (Baxter 2007). In addition it reports some corrections made subsequent to release of the first two reports to correct so

Baxter, Van D [ORNL

2007-05-01T23:59:59.000Z

389

Comparisons of HVAC Simulations between EnergyPlus and DOE-2.2 for Data Centers  

SciTech Connect

This paper compares HVAC simulations between EnergyPlus and DOE-2.2 for data centers. The HVAC systems studied in the paper are packaged direct expansion air-cooled single zone systems with and without air economizer. Four climate zones are chosen for the study - San Francisco, Miami, Chicago, and Phoenix. EnergyPlus version 2.1 and DOE-2.2 version 45 are used in the annual energy simulations. The annual cooling electric consumption calculated by EnergyPlus and DOE-2.2 are reasonablely matched within a range of -0.4percent to 8.6percent. The paper also discusses sources of differences beween EnergyPlus and DOE-2.2 runs including cooling coil algorithm, performance curves, and important energy model inputs.

Hong, Tianzhen; Sartor, Dale; Mathew, Paul; Yazdanian, Mehry

2008-08-13T23:59:59.000Z

390

HVAC Technology Report: A Review of Heating, Ventilation and Air Conditioning Technology and Markets  

Science Conference Proceedings (OSTI)

For many of us, roughly 95 percent of our time is spent indoors. To enable humans to spend this much time inside, mechanical equipment is necessary to provide space conditioning to control the temperature (heating and cooling), ventilation, humidity, and indoor air quality. This report introduces the heating, ventilation, and air-conditioning (HVAC) industry to EPRI member utility employees. The document describes the most common technologies and applications and provides an overview of industry statisti...

2000-12-14T23:59:59.000Z

391

Requirements for Commissioning HVAC Systems Using BEMS and Commissioning the BEMS Itself Based on Questionnaire Surveys  

E-Print Network (OSTI)

In this paper the present status and requirements for commissioning of HVAC Systems using Building Energy Management Systems (BEMS) and commissioning the BEMS itself are investigated and summarized. The information presented is based on the results of the questionnaire and interview survey of experts which was carried out in four countries; Japan, the USA, France and Canada. This paper intends to clarify the requirements and future scope of the above issues by analyzing similarities and differences between the countries.

Yoshida, H.; Vaezi-Nejad, H.; Choiniere, D.; Wang, F.

2004-01-01T23:59:59.000Z

392

Comparative guide to emerging diagnostic tools for large commercial HVAC systems  

Science Conference Proceedings (OSTI)

This guide compares emerging diagnostic software tools that aid detection and diagnosis of operational problems for large HVAC systems. We have evaluated six tools for use with energy management control system (EMCS) or other monitoring data. The diagnostic tools summarize relevant performance metrics, display plots for manual analysis, and perform automated diagnostic procedures. Our comparative analysis presents nine summary tables with supporting explanatory text and includes sample diagnostic screens for each tool.

Friedman, Hannah; Piette, Mary Ann

2001-05-01T23:59:59.000Z

393

The effects of fixture type and HVAC integration on fluorescent lamp/ballast performance  

SciTech Connect

This paper describes the effects of fixture type and lamp compartment air extract characteristics on lamp/ballast performance. A luminaire/plenum/HVAC simulator was used to measure minimum lamp wall temperature inside four fixture types while varying lamp-compartment extract conditions. Experimental data show that the lumen output of the lamp/ballast system varies by 20% and system efficacy by 10%, depending on the type of fixture and lamp-compartment extract technique employed.

Siminovitch, M.J.; Rubinstein, F.M.; Verderber, R.R.; Clark, T.A.

1986-06-01T23:59:59.000Z

394

Proposal for the award of a contract for the design, supply, installation and commissioning of Heating, Ventilation and Air-Conditioning (HVAC) systems for the PS accelerator infrastructure  

E-Print Network (OSTI)

Proposal for the award of a contract for the design, supply, installation and commissioning of Heating, Ventilation and Air-Conditioning (HVAC) systems for the PS accelerator infrastructure

2012-01-01T23:59:59.000Z

395

Proposal for the award of a contract for dismantling, removal and packaging of the existing Heating, Ventilation and Air-Conditioning (HVAC) systems in the PS tunnel  

E-Print Network (OSTI)

Proposal for the award of a contract for dismantling, removal and packaging of the existing Heating, Ventilation and Air-Conditioning (HVAC) systems in the PS tunnel

2012-01-01T23:59:59.000Z

396

Steam-system upgrades | Open Energy Information  

Open Energy Info (EERE)

Linked Data Page Edit History Share this page on Facebook icon Twitter icon Steam-system upgrades Jump to: navigation, search TODO: Add description List of Steam-system...

397

Upgrading of light Fischer-Tropsch products  

SciTech Connect

The upgrading of Fischer-Tropsch (F-T) light ends was studied at UOP in a program sponsored by the Pittsburgh Energy Technology Center of the US Department of Energy. The goal of the program was to increase the overall yield of marketable transportation fuels from the F-T upgrading complex by focusing on liquefied petroleum gas (LPG) and naphtha. An overview of the entire light-ends program is presented in this paper. Although this contract is specifically concerned with light products (C{sub 3}-C{sub 11}), a separate DOE-sponsored program at UOP investigated the characterization and upgrading of the heavy end of the F-T product spectrum: F-T wax. An economic analysis of the light and heavy ends upgrading was performed to evaluate the conversion of F-T products to marketable transportation fuels. 9 refs., 7 figs., 9 tabs.

Shah, P.P.

1990-11-30T23:59:59.000Z

398

12 GeV Upgrade | Jefferson Lab  

NLE Websites -- All DOE Office Websites

Science Science A Schematic of the 12 GeV Upgrade The 12 GeV Upgrade will greatly expand the research capabilities of Jefferson Lab, adding a fourth experimental hall, upgrading existing halls and doubling the power of the lab's accelerator. A D D I T I O N A L L I N K S: 12 GeV Home Public Interest Scientific Opportunities Hall D Status Updates Contacts Three-Year Accelerator Schedule 2014 - 2016 top-right bottom-left-corner bottom-right-corner 12 GeV Upgrade Physicists at Jefferson Lab are trying to find answers to some of nature's most perplexing questions about the universe by exploring the nucleus of the atom. Their goal is to answer such questions as: "What is the universe made of?" and "What holds everyday matter together?" In their search for answers, physicists smash electrons into atoms using

399

Pricing and Market Segmentation with Software Upgrades.  

E-Print Network (OSTI)

it selects and the number of customers attracted by theseincrease in the number of upgrading customers. Thus, p ? = ?is because: (1) the number of total customers is F c (?) in

Bala, R.; Carr, S. C.

2005-01-01T23:59:59.000Z

400

User and Performance Impacts from Franklin Upgrades  

E-Print Network (OSTI)

J. Lebens. Post- Mortem of the NERSC Franklin XT4 Upgrade toCray User Group Meeting NERSC Franklin Home Page: http://planning from both Cray and NERSC, service interruptions

He, Yun Helen

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Commissioning Results of the Upgraded Neutralized Drift Compression Experiment  

E-Print Network (OSTI)

COMMISSIONING RESULTS OF THE UPGRADED NEUTRALIZED DRIFTexperiments. We report on commissioning results of the

Lidia, S.M.

2009-01-01T23:59:59.000Z

402

Evaluation of Efficiency Activities in the Industrial Sector Undertaken in Response to Greenhouse Gas Emission Reduction Targets  

E-Print Network (OSTI)

Assessment of HVAC system and optimization Change of productUpgrades of HVAC systems and optimization Energy Agreementdesign, HVAC, refrigeration optimization and alternative

Price, Lynn

2010-01-01T23:59:59.000Z

403

Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in  

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

Honeymoons Honeymoons Lead to Upgrades in Western Vermont to someone by E-mail Share Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Facebook Tweet about Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Twitter Bookmark Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Google Bookmark Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Delicious Rank Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Digg Find More places to share Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on AddThis.com... Better Buildings Residential Network Progress

404

The Advanced Light Source Upgrade  

SciTech Connect

The ALS, a third-generation synchrotron light source at Berkeley Lab, has been operating for almost a decade and is generating forefront science by exploiting the high brightness of a third-generation source in three areas: (1) high resolving power for spectroscopy; (2) high spatial resolution for microscopy and spectromicroscopy; and (3) high coherence for experiments such as speckle. However, the ALS was one of the first third-generation machines to be designed, and accelerator and insertion-device technology have significantly changed since its conception. As a result, its performance will inevitably be outstripped by newer, more advanced sources. To remain competitive and then set a new standard, the performance of the ALS, in particular its brightness, must be enhanced. Substantial improvements in brightness and current have always been feasible in principle, but they incur the penalty of a much reduced lifetime, which is totally unacceptable to our users. Significant brightness improvements can be realized in the core soft x-ray region by going to top-off operation, where injection would be quasi-continuous and the lifetime objections disappear. In top-off mode with higher average current, a reduced vertical emittance and beta function, and small-gap permanent-magnet or superconducting insertion devices, one to two orders of magnitude improvement in brightness can be had in the soft x-ray range. These improvements also extend the high energy range of the undulator radiation beyond the current limit of 2000 eV. Descriptions of the upgrade and the important new science achievable are presented.

Chemla, Daniel S.; Feinberg, Benjamin; Hussain, Zahid; Krebs, Gary F.; Padmore, Howard A.; Robin, David S.; Robinson, Arthur L.; Smith, Neville V.

2003-11-04T23:59:59.000Z

405

CX-006332: Categorical Exclusion Determination | Department of Energy  

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

CX-006332: Categorical Exclusion Determination CX-006332: Categorical Exclusion Determination CX-006332: Categorical Exclusion Determination Michigan-City-Battle Creek CX(s) Applied: B2.5, B5.1 Date: 02/05/2010 Location(s): Battle Creek, Michigan Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. 1) Fire station lighting retrofits and heating, ventilation and air conditioning (HVAC) upgrades, 2) transit buildings lighting retrofits and HVAC upgrades, 3) replace/upgrades to well pump motors at Verona Water Treatment Plant, and 4) lighting retrofits and HVAC upgrades to Verona Water Treatment Plant. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-006332.PDF More Documents & Publications CX-006888: Categorical Exclusion Determination EA 1714: Final Environmental Assessment

406

Energy Savings Potential of Flexible and Adaptive HVAC Distribution Systems for Office Buildings  

Science Conference Proceedings (OSTI)

It has been understood by architects and engineers that office buildings with easily re-configurable space and flexible mechanical and electrical systems are able to provide comfort that increases worker productivity while using less energy. Raised floors are an example of how fresh air, thermal conditioning, lighting needs, and network access can be delivered in a flexible manner that is not ''embedded'' within the structure. What are not yet documented is how well these systems perform and how much energy they can save. This area is being investigated in phased projects of the 21st Century Research Program of the Air-conditioning and Refrigeration Technology Institute. For the initial project, research teams at the Center for Building Performance and Diagnostics, Pittsburgh, Pennsylvania, and Oak Ridge National Laboratory, Oak Ridge, Tennessee, documented the diversity, performance, and incidence of flexible and adaptive HVAC systems. Information was gathered worldwide from journal and conference articles, case studies, manufactured products and assemblies, and interviews with design professionals. Their report thoroughly describes the variety of system types along with the various design alternatives observed for plenums, diffusers, individual control, and system integration. Many of the systems are illustrated in the report and the authors provide quantitative and qualitative comparisons. Among conclusions regarding key design issues, and barriers to widespread adoption, the authors state that flexible and adaptive HVAC systems, such as underfloor air, perform as well if not better than ceiling-based systems. Leading engineers have become active proponents after their first experience, which is resulting in these flexible and adaptive HVAC systems approaching 10 percent of the new construction market. To encourage adoption of this technology that improves thermal comfort and indoor air quality, follow-on work is required to further document performance. Architects, professional engineers, and commercial real estate developers will benefit from the availability of information that quantifies energy savings, first cost construction differences, and additional operating costs created when office space must be reconfigured to accommodate new tenants.

Loftness, Vivian; Brahme, Rohini; Mondazzi, Michelle; Vineyard, Edward; MacDonald, Michael

2002-06-01T23:59:59.000Z

407

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System  

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

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage Title Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage Publication Type Conference Proceedings Refereed Designation Refereed LBNL Report Number LBNL-6127E Year of Publication 2013 Authors Mammoli, Andrea, Michael Stadler, Nicholas DeForest, Hans Barsun, Richard Burnett, and Chris Marnay Conference Name 3rd International Conference on Microgeneration and Related Technologies Date Published 04/2013 Conference Location Naples, Italy Keywords absorption cooling, mixed integer programming, optimisation, software-as-a-service, thermal storage Abstract The UNM Mechanical Engineering HVAC system incorporates cooling assisted by a 232 m2 solar thermal array providing heat to a 70 kWthermal absorption chiller. A 30 m3 heat storage tank solar decouples heat production and absorption cooling. Additionally, 350 m3 of chilled water storage shifts the cooling electrical load of this high desert location off-peak. While this system already provides substantial energy and cost savings compared to similar conventional buildings, there are still opportunities for improvement. Absorption cooling (augmented by an electrically powered central cooling loop) suffers from parasitic electric loads from a cooling tower pump, a cooling tower fan, and hot and chilled water circulation pumps. Moreover, depending on seasonal, weather, occupancy, and cost conditions, the cold storage tanks may only need partial charging to meet the next day's net building load, and losses need to be considered. Optimally operating this complex thermal-electrical system poses a challenging mathematical problem. A model of the system was built on LBNL's Distributed Resources Customer Adoption Model (DER-CAM) platform. A direct interface between the building energy control system, and DER-CAM hosted on LBNL's server was developed. This interface delivers daily scheduling based on weather forecasts, tariffs, etc., to the building controller. It is found that energy cost savings can be proportionally substantial (almost 30%) - although in this case the payback period for system implementation is long, due to the very low energy consumption of the building. Also, it is found that accurate weather forecasting is a key ingredient of the optimization, although local biases can be corrected for in the optimization.

408

Building America Expert Meeting Report: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors  

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

Transitioning Transitioning Traditional HVAC Contractors to Whole House Performance Contractors Arlan Burdick IBACOS, Inc. October 2011 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation,

409

Self-Correcting HVAC Controls: Algorithms for Sensors and Dampers in Air-Handling Units  

SciTech Connect

This report documents the self-correction algorithms developed in the Self-Correcting Heating, Ventilating and Air-Conditioning (HVAC) Controls project funded jointly by the Bonneville Power Administration and the Building Technologies Program of the U.S. Department of Energy. The algorithms address faults for temperature sensors, humidity sensors, and dampers in air-handling units and correction of persistent manual overrides of automated control systems. All faults considered create energy waste when left uncorrected as is frequently the case in actual systems.

Fernandez, Nicholas; Brambley, Michael R.; Katipamula, Srinivas

2009-12-31T23:59:59.000Z

410

Application of Multizone HVAC Control Using Wireless Sensor Networks and Actuating Vent Registers  

E-Print Network (OSTI)

Most residential heating, ventilating, and air conditioning (HVAC) systems are designed to treat the home as a single zone. Single zone control consists of one thermostat, in a central area of the house that controls the HVAC operation. In a single zone system all of the vent registers are open, distributing air into all areas of the house at once. Single zone control leads to wasted energy for two reasons - all rooms being conditioned when they are not occupied, and conditioning occupied rooms, without maintaining them at the comfortable temperature for the occupants. Improved control of residential cooling and heating can be attained with a variable HVAC fan, duct, and vent system. Existing single zone systems are expensive to retrofit with the above mentioned features. Current techniques require replacing major components in the HVAC system which are both costly and time consuming, invading the user's home. An alternative to the extensive retrofit is detailed in this work. The experiments in this paper implement an automated vent louver system to solve two problems in heating homes: the problem of temperature stratification between floors and zonification between rooms, and the energy wasted to heat in unoccupied areas of the home. This paper considers the application of replacing the standard vents in each room with wireless controlled louvered vents. These vents allow for simpler, more cost effective retrofits which are also less invasive tithe end user's home. The experiments in this paper implement an automated vent louver system to reduce the energy wasted to heat unoccupied areas of the home. This test house in these experiments was a two story home. Wireless sensor-actuator networks were used to automate the test of closing off vent registers while maintaining the appropriate temperature set point in a control zone. A control zone consists of the house area where the vents are fully open. Controlling the vent registers allowed for reduced zonification between rooms on the same floor, and reduced stratification between the upstairs and downstairs. Energy savings were shown when vents were closed to heat the control zones containing the bedroom, of the office.

Watts, W.; Koplow, M.; Redfern, A.; Wright, P.

2007-01-01T23:59:59.000Z

411

R and D opportunities for commercial HVAC (heating, air conditioning, and ventilation) equipment  

SciTech Connect

The overall objective of this project is to identify and characterize generic HVAC equipment research that will provide the best investment opportunities for DOE R and D funds. The prerequisites of a DOE research program include research efforts that are potentially significant in energy conservation impact and that are cost-effective, long-term, and high risk. These prerequisites form the basic guidelines for the R and D opportunities assessed. The assessment excludes the R and D areas that have potential or current private sector sponsors. Finally, R and D areas which are included in DOE programs generally are not addressed.

Chiu, S.A.; Zaloudek, F.R.

1987-03-01T23:59:59.000Z

412

Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners  

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

HVAC HVAC A Guide for Contractors to Share with Homeowners PREPARED BY Pacific Northwest National Laboratory & Oak Ridge National Laboratory August 2011 August 2011 * PNNL-20421 BUILDING AMERICA BEST PRACTICES SERIES VOLUME 14. R BUILDING AMERICA BEST PRACTICES SERIES Energy Renovations Volume 14: HVAC A Guide for Contractors to Share with Homeowners Prepared by Pacific Northwest National Laboratory Program Manager: Michael C. Baechler Theresa L. Gilbride, Michael C. Baechler, Marye G. Hefty, and James R. Hand and Oak Ridge National Laboratory Pat M. Love August 2011 Prepared for the U.S. Department of Energy Building America Program PNNL-20421 Pacific Northwest National Laboratory Richland, Washington 99352 Contract DE-AC05-76RLO 1830 This report was prepared as an account of work sponsored by an agency of the

413

Climate balance of biogas upgrading systems  

SciTech Connect

One of the numerous applications of renewable energy is represented by the use of upgraded biogas where needed by feeding into the gas grid. The aim of the present study was to identify an upgrading scenario featuring minimum overall GHG emissions. The study was based on a life-cycle approach taking into account also GHG emissions resulting from plant cultivation to the process of energy conversion. For anaerobic digestion two substrates have been taken into account: (1) agricultural resources and (2) municipal organic waste. The study provides results for four different upgrading technologies including the BABIU (Bottom Ash for Biogas Upgrading) method. As the transport of bottom ash is a critical factor implicated in the BABIU-method, different transport distances and means of conveyance (lorry, train) have been considered. Furthermore, aspects including biogas compression and energy conversion in a combined heat and power plant were assessed. GHG emissions from a conventional energy supply system (natural gas) have been estimated as reference scenario. The main findings obtained underlined how the overall reduction of GHG emissions may be rather limited, for example for an agricultural context in which PSA-scenarios emit only 10% less greenhouse gases than the reference scenario. The BABIU-method constitutes an efficient upgrading method capable of attaining a high reduction of GHG emission by sequestration of CO{sub 2}.

Pertl, A., E-mail: andreas.pertl@boku.ac.a [Institute of Waste Management, Department of Water, Atmosphere and Environment, University of Natural Resources and Applied Life Sciences, Vienna, Muthgasse 107, A-1190 Wien (Austria); Mostbauer, P.; Obersteiner, G. [Institute of Waste Management, Department of Water, Atmosphere and Environment, University of Natural Resources and Applied Life Sciences, Vienna, Muthgasse 107, A-1190 Wien (Austria)

2010-01-15T23:59:59.000Z

414

COMPARATIVE STUDY AMONG HYBRID GROUND SOURCE HEAT PUMP SYSTEM, COMPLETE GROUND SOURCE HEAT PUMP AND CONVENTIONAL HVAC SYSTEM  

DOE Green Energy (OSTI)

In this paper, a hotel with hybrid geothermal heat pump system (HyGSHP) in the Pensacola is selected and simulated by the transient simulation software package TRNSYS [1]. To verify the simulation results, the validations are conducted by using the monthly average entering water temperature, monthly facility consumption data, and etc. And three types of HVAC systems are compared based on the same building model and HVAC system capacity. The results are presented to show the advantages and disadvantages of HyGSHP compared with the other two systems in terms of energy consumptions, life cycle cost analysis.

Jiang Zhu; Yong X. Tao

2011-11-01T23:59:59.000Z

415

Instrumentation upgrades for the Macromolecular Crystallography beamlines  

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

Instrumentation upgrades for the Macromolecular Crystallography beamlines Instrumentation upgrades for the Macromolecular Crystallography beamlines of the Swiss Light Source Monday, October 29, 2012 - 2:00am SSRL, Bldg. 137, Rm. 322 Martin Fuchs, MX Group, Swiss Light Source; Paul Scherrer Institute (Villigen, Switzerland) A new unified diffractometer - the D3 - has been developed for the three MX beamlines. The first of the instruments is in general user operation at beamline X10SA since April 2012. The varied demands from both challenging academic research projects as well as high throughput industrial applications on today's macromolecular crystallography beamlines drive developments to both endstations and beamline optics. Recent instrumentation upgrades to the macromolecular crystallography (MX) beamlines of the Swiss Light Source therefore aimed to

416

HERA Upgrade Project | Superconducting Magnet Division  

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

HERA Upgrade Project HERA Upgrade Project As part of the HERA luminosity upgrade, 6 superconducting Interaction Region quadrupoles were delivered, accepted, and are in service. These 6 layer magnets were designed to include the main quadrupole focus, a skew quad, a normal and skew dipole, and a final sextupole layer. Because of the physical space constraints imposed by the existing detector region components, the DESY magnets were of necessity designed to be very compact. In addition, they are also are required to operate within the solenoidal detector fields at the collision points, so all construction materials had to be non magnetic. Two types of DESY magnets were fabricated. The first, designated as G0, was a two meter long, constant radius magnet. The second, designated GG, is a

417

ATLAS upgrade June09_v3  

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

ATLAS efficiency and intensity upgrade ATLAS efficiency and intensity upgrade Guy Savard and Robert V. F. Janssens June 12, 2009 The ATLAS facility is on a constant quest to improve and increase the capabilities it offers to its Users. ATLAS currently provides beams of essentially all stable isotopes at energies in the vicinity of the Coulomb barrier. These can be used in conjunction with a suite of state-of-the-art instruments such as Gammasphere, the Fragment Mass Analyzer (FMA), the Canadian Penning Trap mass spectrometer (CPT), the split-pole spectrograph, an in-flight radioactive beam line, and the recently commissioned HELIOS spectrometer. At present, these capabilities are being augmented by (1) the addition of the CARIBU upgrade, which will provide low-intensity, neutron-rich radioactive beams from Californium fission fragments in both low-energy and re-

418

An Experimental Evaluation of HVAC-Grade Carbon-Dioxide Sensors: Part 2, Performance Test Results  

Science Conference Proceedings (OSTI)

This is the second paper in a four-part series reporting on the test and evaluation of typical carbon-dioxide sensors used in building HVAC applications. Fifteen models of NDIR HVAC-grade CO2 sensors were tested and evaluated to determine the accuracy, linearity, repeatability, and hysteresis of each sensor. This paper describes the performance of the sensors and provides a comparison with the manufacturers specifications. The sensors were tested at 40% relative humidity, 73oF (22.8oC) temperature, 14.70 psia (101.35 kPa) pressure, and at five different CO2 concentrations (400 ppm, 750 ppm, 1100 ppm, 1450 ppm, and 1800 ppm). The test results showed a wide variation in sensor performance among the various manufacturers and in some cases a wide variation among sensors of the same model. In all, 45 sensors were evaluated: three from each of the 15 models. Among the 15 models tested, eight models have a single-lamp, single-wavelength configuration, four models have a dual-lamp, single-wavelength configuration, and three models have a single-lamp, dual-wavelength configuration.

Shrestha, Som S [ORNL; Maxwell, Dr. Gregory [Iowa State University

2010-01-01T23:59:59.000Z

419

COMPREHENSIVE DIAGNOSTIC AND IMPROVEMENT TOOLS FOR HVAC-SYSTEM INSTALLATIONS IN LIGHT COMMERCIAL BUILDINGS  

SciTech Connect

Proctor Engineering Group, Ltd. (PEG) and Carrier-Aeroseal LLP performed an investigation of opportunities for improving air conditioning and heating system performance in existing light commercial buildings. Comprehensive diagnostic and improvement tools were created to address equipment performance parameters (including airflow, refrigerant charge, and economizer operation), duct-system performance (including duct leakage, zonal flows and thermal-energy delivery), and combustion appliance safety within these buildings. This investigation, sponsored by the National Energy Technology Laboratory, a division of the U.S. Department of Energy, involved collaboration between PEG and Aeroseal in order to refine three technologies previously developed for the residential market: (1) an aerosol-based duct sealing technology that allows the ducts to be sealed remotely (i.e., without removing the ceiling tiles), (2) a computer-driven diagnostic and improvement-tracking tool for residential duct installations, and (3) an integrated diagnosis verification and customer satisfaction system utilizing a combined computer/human expert system for HVAC performance. Prior to this work the aerosol-sealing technology was virtually untested in the light commercial sector--mostly because the savings potential and practicality of this or any other type of duct sealing had not been documented. Based upon the field experiences of PEG and Aeroseal, the overall product was tailored to suit the skill sets of typical HVAC-contractor personnel.

Abram Conant; Mark Modera; Joe Pira; John Proctor; Mike Gebbie

2004-10-31T23:59:59.000Z

420

A Qualitive Modeling Approach for Fault Detection and Diagnosis on HVAC Systems  

E-Print Network (OSTI)

This paper describes the basics and first test results of a model based approach using qualitative modeling to perform Fault Detection and Diagnostics (FDD) on HVAC and R systems. A quantized system describing the qualitative behavior of a dynamical system is established by transforming numerical inputs into qualitative values or states. Then, the qualitative model is used to determine system-states or outputs that may occur in the future. The qualitative model determines the probability that a subsequent condition might occur. The model can then be used for FDD purposes by comparing the expected states of the faultless system with the occurring states of the real process. The paper presents the first results of the model, trained with measurement data of an air handling unit (AHU) heating coil. The authors plan to extend the model to further AHU components and to test them against real data to assess their performance for FDD and their economic viability in terms of engineering efforts and costs by comparing them with a rule-based FDD system. It is then planned to implement and test the models on several large HVAC and R systems operating at two major European airports in the framework of the FP7 European project CASCADE ICT for Energy Efficient Airports.

Muller, T.; Rehault, N.; Rist, T.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Development of HVAC System Performance Criteria Using Factorial Design and DOE-2 Simulation  

E-Print Network (OSTI)

A new approach is described for the development of Heating, Ventilating, and Air-conditioning (HVAC) System Performance Criteria for the Texas Building Energy Design Standard. This approach integrates a design of experimental methodology and DOE-2 simulation to identify the effects of control parameters on HVAC system energy performance. Three new criteria - transport, plant, and system performance factors-are used as measures of system performance. The procedure has been applied to the development of criteria for a variable-air-volume (VAV) and a constant-air-volume (CAV) system in three Texas climates. The results show that the air distribution system pressure loss, cooling coil exit temperature set-pint, operation of an economizer, and use of dead band controls have significant effects on air transport energy use and total system performance. The selection of control strategies and set-points have a clear impact on energy use. There is also a great energy-saving potential of converting from a CAV to a VAV system.

Hou, D.; Jones, J. W.; Hunn, B. D.; Banks, J. A.

1996-01-01T23:59:59.000Z

422

A BEMS-Assisted Commissioning Tool to Improve the Energy Performance of HVAC Systems  

E-Print Network (OSTI)

The evolving capabilities of Building Energy Management Systems (BEMS) offer new opportunities to automate some parts of the commissioning process and can generate benefits over the entire life of a building. These benefits include a reduction of process cost and manual effort on site, improved quality assurance process and the adoption of automated energy audit capabilities to improve overall building performance. This paper presents the concept for a new automated commissioning tool that verifies and optimizes the performance of building HVAC systems using the capabilities of BEMS. The tool is applicable mainly to commercial and institutional buildings. In its simplest form, the tool monitors building control data and stores it in a structured database to be used online or upon request. Data resulting from standardized test procedures invoked manually or automatically are also stored in the database. A reasoning algorithm performs an intelligent analysis of the monitored data and also performs additional automated commissioning of HVAC components and systems, identifying faults, diagnosing them, and evaluating the potential energy efficiency improvements. The process is completed by sending detailed comprehensive reports to the user. This paper also includes an example showing how an automated BEMS-assisted commissioning tool can potentially be applied to improve the energy performance of variable-air-volume fan systems.

Choiniere, D.; Corsi, M.

2003-01-01T23:59:59.000Z

423

Upgrading of light Fischer-Tropsch products  

SciTech Connect

Work during this quarter concentrated on Task 4 of the study. The objective of this task is to evaluate the application of the UOP/BP Cyclar* process to the upgrading of Fischer-Tropsch LPG products into aromatics. Results from pilot plant studies were translated into commercial yield estimates as described in Quarterly Report No. 7. This quarterly report documents an economic evaluation of the Cyclar process for converting LPG into aromatics in a Fischer-Tropsch upgrading complex. 1 ref., 11 figs., 9 tabs.

1989-07-11T23:59:59.000Z

424

Energy Upgrade of the Siam Photon Source  

SciTech Connect

The energy upgrade of the storage ring is part of the plans to develop x-ray production capability of the Siam Photon Source. Simulations have been carried out. The bending magnet power supply has been replaced. Energy of the injected 1 GeV beam from the injector is then ramped up 20% in the storage ring. Studies for modification of bending magnet poles have been done to evaluate possibility of further increasing the beam energy to 1.4 GeV in the future. Studies of the energy upgrade plan and details of energy ramping process, together with beam measurements are presented.

Rugmai, S.; Rujirawat, S. [National Synchrotron Research Center, P.O. Box 93, Nakhon Ratchasima, 30000 (Thailand); School of Physics, Suranaree University of Technology, 111 University Avenue, Muang Distrct, Nakhon Ratchasima, 30000 (Thailand); Hoyes, G. G.; Prawanta, S.; Kwankasem, A.; Siriwattanapitoon, S.; Suradet, N.; Pimol, P.; Junthong, N.; Boonsuya, S.; Janpuang, P.; Prawatsri, P.; Klysubun, P. [National Synchrotron Research Center, P.O. Box 93, Nakhon Ratchasima, 30000 (Thailand)

2007-01-19T23:59:59.000Z

425

City Utilities of Springfield - Residential Energy Efficiency...  

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

available for programmable thermostats, insulation upgrades, whole home upgrades and HVAC equipment. The HVAC rebates are available for single- and multi-family residential...

426

U.S. Department of Energy NEPA Categorical Exclusion Determination...  

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

I and II, Baldwin County Courthouse, Sheriff's Office- Correction Center, 2) upgrade HVAC in correctional facility and Central Annex II, and 3) upgrade HVAC in Baldwin County...

427

Energy Upgrades to Save Small Arizona Town Big Money | Department...  

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

Energy Upgrades to Save Small Arizona Town Big Money Energy Upgrades to Save Small Arizona Town Big Money July 19, 2010 - 1:00pm Addthis An aerial shot of Oro Valley, Ariz.'s town...

428

Better Buildings Neighborhood Program: Energy Upgrade California Drives  

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

Energy Upgrade Energy Upgrade California Drives Demand From Behind the Wheel to someone by E-mail Share Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Facebook Tweet about Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Twitter Bookmark Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Google Bookmark Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Delicious Rank Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on Digg Find More places to share Better Buildings Neighborhood Program: Energy Upgrade California Drives Demand From Behind the Wheel on

429

Missouri Water Treatment Plant Upgraded | Department of Energy  

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

Water Treatment Plant Upgraded Missouri Water Treatment Plant Upgraded July 13, 2010 - 11:30am Addthis The high service pumps at the St. Peters Water Treatment Plant are almost 30...

430

How to Save Energy, Money with Home Energy Upgrades | Department...  

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

How to Save Energy, Money with Home Energy Upgrades How to Save Energy, Money with Home Energy Upgrades November 1, 2013 - 4:38pm Addthis Tammara Thayer thanks Steve Lemaire (left)...

431

NSTX Upgrade Armor Plate Backing Plate  

E-Print Network (OSTI)

NSTX Upgrade Armor Plate Backing Plate NSTXU-CALC-24-02-00 Rev 0 February 17, 2011 Prepared By # NSTXU_CALC-24-02-00 Revision # 00 WP #: 1508 (ENG-032) Purpose of Calculation: 1.) To qualify the Armor backing plate calculation 2.) Build and evaluate a Finite Element Model for The Armor Eddy Current

Princeton Plasma Physics Laboratory

432

Upgrade of a Scara robot using Orocos  

Science Conference Proceedings (OSTI)

This paper presents a bottom-up approach that permits the integration of new devices and functionalities into a robotic cell. Although there are currently notable efforts from the scientific community toward this goal, the initiative presented here combines ... Keywords: Orocos, RTAI, free software, real time systems, robot design and architecture, robot upgrade

Dalton Matsuo Tavares; Rafael Vidal Aroca; Glauco Augusto de Paula Caurin

2007-08-01T23:59:59.000Z

433

Preparation for upgrading western subbituminous coal  

SciTech Connect

The objective of this project was to establish the physical and chemical characteristics of western coal and determine the best preparation technologies for upgrading this resource. Western coal was characterized as an abundant, easily mineable, clean, low-sulfur coal with low heating value, high moisture, susceptibility to spontaneous ignition, and considerable transit distances from major markets. Project support was provided by the Morgantown Energy Technology Center (METC) of the US Department of Energy (DOE). The research was conducted by the Western Research Institute, (WRI) in Laramie, Wyoming. The project scope of work required the completion of four tasks: (1) project planning, (2) literature searches and verbal contacts with consumers and producers of western coal, (3) selection of the best technologies to upgrade western coal, and (4) identification of research needed to develop the best technologies for upgrading western coals. The results of this research suggest that thermal drying is the best technology for upgrading western coals. There is a significant need for further research in areas involving physical and chemical stabilization of the dried coal product. Excessive particle-size degradation and resulting dustiness, moisture reabsorption, and high susceptibility to spontaneous combustion are key areas requiring further research. Improved testing methods for the determination of equilibrium moisture and susceptibility to spontaneous ignition under various ambient conditions are recommended.

Grimes, R.W.; Cha, C.Y.; Sheesley, D.C.

1990-11-01T23:59:59.000Z

434

MR LLRF VXI upgrade beam study period  

Science Conference Proceedings (OSTI)

AD/RFI/LLRF group personnel performed several studies with the MR LLRF VXI upgrade system during the evening of 7/29/95. The study period lasted about 4 hours. The MR operating conditions were a mixture of $29 and $2B cycles, with beam injected only on the $29. The author believes the $2B cycles were present for reasons unrelated to the study. The basic study period goal was to test the initial VXI version of MR LLRF finite state machine (FSM) execution. This goal represents what has been called MR LLRF VXI Upgrade Implementation Stage No.2 throughout presentations and documentation on the upgrade project. The test includes control of MR LLRF NIM hardware, the MR RF cavities, and beam via XVI TTL FSM outputs. Numerous MR LLRF VXI system objects, or components, must work together correctly for a successful test. Very briefly, the required objects include VXI Front End hardware, the ACNET/Front End interface code, and the VXI/NIM Interface chassis (the chassis solves VXI-CAMAC-NIM RF and FSM output connectivity and development problems). Though this initial FSM does not yet fully support Upgrade Implementation Stage 2 functionality, all code and hardware for the following basic functionality is tested.

Mesiner, K.; /Fermilab

1995-01-01T23:59:59.000Z

435

CMS: Present status, limitations, and upgrade plans  

SciTech Connect

An overview of the CMS upgrade plans will be presented. A brief status of the CMS detector will be given, covering some of the issues we have so far experienced. This will be followed by an overview of the various CMS upgrades planned, covering the main motivations for them, and the various R&D efforts for the possibilities under study. The CMS detector has been working extremely well since the start of data-taking at the LHC as is evidenced by the numerous excellent results published by CMS and presented at this workshop and recent conferences. Less well documented are the various issues that have been encountered with the detector. In the spirit of this workshop I will cover some of these issues with particular emphasis on problems that motivate some of the upgrades to the CMS detector for this decade of data-taking. Though the CMS detector has been working extremely well and expectations are great for making the most of the LHC luminosity, there have been a number of issues encountered so far. Some of these have been described and while none currently presents a problem for physics performance, some of them are expected to become more problematic, especially at the highest Phase 1 luminosities for which the majority of the integrated luminosity will be collected. These motivate upgrades for various parts of the CMS detector so that the current excellent physics performance can be maintained or even surpassed in the realm of the highest Phase 1 luminosities.

Cheung, H.W.K.; /Fermilab

2011-09-01T23:59:59.000Z

436

The BABAR Detector: Upgrades, Operation and Performance  

E-Print Network (OSTI)

The BABAR detector operated successfully at the PEP-II asymmetric e+e- collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the detector systems, as well as the trigger, online and offline computing, and aspects of event reconstruction since the beginning of data taking.

The BABAR Collaboration

2013-05-15T23:59:59.000Z

437

UPGRADES TO Monteburns, VERSION 3.0  

SciTech Connect

Monteburns VERSION 3.0 is an upgrade of the existing Monteburns code available through RSICC. The new version includes modern programming style, increased parallel computing, more accurate capture gamma calculations and an automated input generator. This capability was demonstrated through a small PWR core simulation.

Galloway, Jack D [Los Alamos National Laboratory; Trellue, Holly R [Los Alamos National Laboratory

2012-06-22T23:59:59.000Z

438

General Methodology Combining Engineering Optimization of Primary HVAC & R Plants with Decision Analysis Methods--Part I: Deterministic Analysis  

SciTech Connect

This paper is the first of a two-part sequence that proposes a general methodology for dynamic scheduling and optimal control of complex primary HVAC&R plants, which combines engineering analyses within a practical decision analysis framework by modeling risk attitudes of the operator. The paper was based on work done prior to employment by Battelle.

Jiang, Wei; Reddy, T. A.

2007-01-31T23:59:59.000Z

439

Value impact analysis of Generic Issue 143, Availability of Heating, Ventilation, Air Conditioning (HVAC) and Chilled Water Systems  

Science Conference Proceedings (OSTI)

This study evaluates the values (benefits) and impacts (costs) associated with potential resolutions to Generic Issue 143, ``Availability of HVAC and Chilled Water Systems.`` The study identifies vulnerabilities related to failures of HVAC, chilled water, and room cooling systems; develops estimates of room heatup rates and safety-related equipment vulnerabilities following losses of HVAC/room cooler systems; develops estimates of the core damage frequencies and public risks associated with failures of these systems; develops three proposed resolution strategies to this generic issue; and performs a value/impact analysis of the proposed resolutions. Existing probabilistic risk assessments for four representative plants, including one plant from each vendor, form the basis for the core damage frequency and public risk calculations. Both internal and external events were considered. It was concluded that all three proposed resolution strategies exceed the $1,000/person-rem cost-effectiveness ratio. Additional evaluations were performed to develop ``generic`` insights on potential design-related and configuration-related vulnerabilities and potential high-frequency ({approximately}1E-04/RY) accident sequences that involve failures of HVAC/room cooling functions. It was concluded that, although high-frequency accident sequences may exist at some plants, these high-frequency sequences are plant-specific in nature or have been resolved through hardware and/or operational changes. The plant-specific Individual Plant Examinations are an effective vehicle for identification and resolution of these plant-specific anomalies and hardware configurations.

Daling, P.M.; Marler, J.E.; Vo, T.V.; Phan, H.; Friley, J.R. [Pacific Northwest Lab., Richland, WA (United States)

1993-11-01T23:59:59.000Z

440

Guidelines for Home Energy Upgrade Professionals: Standard Work Specifications for Multifamily Energy Upgrades (Fact Sheet)  

Science Conference Proceedings (OSTI)

This fact sheet provides essential information about the 2011 publication of the Workforce Guidelines for Multifamily Home Energy Upgrades, including their origin, their development with the help of industry leaders to create the standard work specifications for retrofit work.

Not Available

2011-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

HVAC Equipment Design Options for Near-Zero-Energy Homes - Scoping Assessment of Radiant Panel Distribution System Options  

Science Conference Proceedings (OSTI)

Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Conventional unitary equipment and system designs have matured to a point where cost-effective, dramatic efficiency improvements that meet near-zero-energy housing (NZEH) goals require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. In FY05, ORNL conducted a scoping-level assessment of HVAC system options for NZEH homes (Baxter 2005). That report examined some twenty HVAC and water heating (HVAC/WH) systems in two 1800 ft2 houses--one constructed to Building America Research Benchmark standards and one a prototype NZEH. Both centrally ducted and two-zone systems were examined in that study. The highest scoring options using the ranking criteria described in that report were air-source and ground-source integrated heat pumps (IHP), and these were selected by DOE for further development. Among the feedback received to the FY05 report was a comment that systems using radiant panel (floor or ceiling) distribution options were not included among the system examined. This present report describes an assessment of a few such radiant panel systems under the same analysis and ranking criteria used in Baxter (2005). The rankings of the radiant system options reported herein are based on scoring by the team of building equipment researchers at ORNL. It is DOE's prerogative to revisit the criteria and obtain scoring from additional perspectives as part of its decision making process. If the criteria change, the ORNL team will be happy to re-score.

Baxter, Van David [ORNL

2007-06-01T23:59:59.000Z

442

Financing Energy Upgrades for K-12 School Districts  

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

Financing Energy Upgrades for K-12 School Districts Financing Energy Upgrades for K-12 School Districts Page 2 Table of Contents Introduction................................................................................................................................................................................................................... 4 What This Guide Covers .................................................................................................................................................................................. 6 Chapter 1: Principles of Financing Energy Upgrades for Schools .................................................................................................. 7 Principle 1. Start with Clear Project Objectives.......................................................................................................................................... 7

443

CX-005720: Categorical Exclusion Determination | Department of Energy  

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

20: Categorical Exclusion Determination 20: Categorical Exclusion Determination CX-005720: Categorical Exclusion Determination Rhode Island-City-Cranston CX(s) Applied: A9, B2.5, B5.1 Date: 04/27/2011 Location(s): Cranston, Rhode Island Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. 1) Technical consultant to manage energy efficiency and conservation block grant work, 2) conduct audits of city facilities, 3) heating, ventilating, and air conditioning (HVAC) control upgrades in identified buildings (Glen Hills Elementary, Hope Highlands Elementary, Western Hills Middle, Bain Elementary, Cranston West, Peters Elementary), 4) lighting and HVAC control upgrades in the Senior Center, and 5) lighting and HVAC upgrades in City Hall. DOCUMENT(S) AVAILABLE FOR DOWNLOAD

444

CX-005553: Categorical Exclusion Determination | Department of Energy  

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

53: Categorical Exclusion Determination 53: Categorical Exclusion Determination CX-005553: Categorical Exclusion Determination Connecticut-City-Danbury CX(s) Applied: A9, A11, B2.5, B5.1 Date: 04/01/2011 Location(s): Danbury, Connecticut Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. 1) Technical consultant to serve as grant administrator, 2) hire consultant to examine the feasibility of installing renewable energy technologies on city buildings, 3) install a centralized building management system, 4) energy efficiency retrofits at the Danbury Library, 5) lighting upgrades at Hatters Park Forestry Office, 6) lighting and heating, ventilation, and air conditioning (HVAC) retrofits at the Old Library, 7) HVAC and control upgrades at the Old Jail/Senior Center, 8) lighting and HVAC upgrades,

445

Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.  

Science Conference Proceedings (OSTI)

We used Proton Transfer Reaction - Mass Spectrometry (PTR-MS) and conventional sampling methods to monitor and identify trace level organic pollutants formed in heterogeneous reactions between ozone and HVAC filters in real time. Experiments were carried out using a bench-scale flow tube reactor operating with dry air and humidified air (50% RH), at realistically high ozone concentrations (150 ppbv). We explored different filter media (i.e., fiberglass and cotton/polyester blends) and different particle loadings (i.e., clean filter and filters loaded with particles for 3 months at the Lawrence Berkeley National Laboratory and the Port of Oakland, CA). Detailed emission dynamics of very low levels of certain organic pollutants from filter media upon ozone exposure in the presence of moisture have been obtained and analyzed.

Destaillats, Hugo; Chen, Wenhao; Apte, Michael; Li, Nuan; Spears, Michael; Almosni, Jérémie; Zhang, Jianshun (Jensen); Fisk, William J.

2009-09-09T23:59:59.000Z

446

Considering lighting system performance and HVAC interactions in lighting retrofit analyses  

SciTech Connect

The performance of several typical fluorescent lighting retrofits are examined using analysis methods of varying sophistication. Estimates of energy and lighting performance based on the simple non-application specific data generally available tend to overestimate the energy savings obtained with the various retrofits by 10-30%. Adding a simple correction to account for cooling benefits exacerbates the error unless heating penalties are also considered. An analysis method that takes into account the thermal application factor of the lighting system shows that the error is typically due to systematically overestimating the energy usage of the original lighting system. If thermal application factor is considered, then detailed HVAC calculations do not significantly improve the energy-savings estimate.

Franconi, E.; Rubinstein, F.

1991-10-01T23:59:59.000Z

447

DEMONSTRATION OF A HYBRID INTELLIGENT CONTROL STRATEGY FOR CRITICAL BUILDING HVAC SYSTEMS  

SciTech Connect

Many industrial facilities utilize pressure control gradients to prevent migration of hazardous species from containment areas to occupied zones, often using Proportional-Integral-Derivative (PID) control. Within these facilities, PID control is often inadequate to maintain desired performance due to changing operating conditions. As the goal of the Heating, Ventilation and Air-Conditioning (HVAC) control system is to optimize the pressure gradients and associated flows for the plant, Linear Quadratic Tracking (LQT) provides a time-based approach to guiding plant interactions. However, LQT methods are susceptible to modeling and measurement errors, and therefore a hybrid design using the integration of soft control methods with hard control methods is developed and demonstrated to account for these errors and nonlinearities.

Craig Rieger; D. Subbaram Naidu

2010-06-01T23:59:59.000Z

448

A Unified and Integrated Energy Management System for HVAC Spaces and Power House  

E-Print Network (OSTI)

This paper describes a totally integrated energy management system throughout the plant and facilities. The equipment involves: the power plant (boilers, cogeneration turbines, chillers); HVAC of buildings; air handling and other distribution systems. The energy management system has the architecture for data transmission and processing including multilevel control and optimization through the plant and buildings. The key step in this work is to interface the power plant control and management system with the rest, under a unified energy management concept. The main advantages of the system has been: (i) the ability to optimize and coordinate the overall operation, (ii) to control the feedback loops for their optimum operation, (iii) to communicate between the levels of control hierarchy, all from the same operator station, and (iv) provide the high reliability and availability of the system.

Kaya, A.; Debban, G. D.

1988-09-01T23:59:59.000Z

449

Energy Star Building Upgrade Value Calculator | Open Energy Information  

Open Energy Info (EERE)

Energy Star Building Upgrade Value Calculator Energy Star Building Upgrade Value Calculator Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy Star Building Upgrade Value Calculator (for Office Properties) Agency/Company /Organization: ENERGY STAR Phase: "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. User Interface: Spreadsheet Website: www.energystar.gov/index.cfm?c=comm_real_estate.building_upgrade_value The Building Upgrade Value Calculator allows practitioners to analyze the

450

ATU Advanced Technology Upgrading Ltd | Open Energy Information  

Open Energy Info (EERE)

ATU Advanced Technology Upgrading Ltd ATU Advanced Technology Upgrading Ltd Jump to: navigation, search Name ATU (Advanced Technology Upgrading) Ltd Place Israel Product Focused on development of rechargeable magnesium battery. References ATU (Advanced Technology Upgrading) Ltd[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. ATU (Advanced Technology Upgrading) Ltd is a company located in Israel . References ↑ "ATU (Advanced Technology Upgrading) Ltd" Retrieved from "http://en.openei.org/w/index.php?title=ATU_Advanced_Technology_Upgrading_Ltd&oldid=342420" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version

451

An Upgrade for the Advanced Light Source  

SciTech Connect

One of the first third-generation synchrotron light sources, the ALS, has been operating for almost a decade at Berkeley Lab, where experimenters have been exploiting its high brightness for forefront science. However, accelerator and insertion-device technology have significantly changed since the ALS was designed. As a result, the performance of the ALS is in danger of being eclipsed by that of newer, more advanced sources. The ALS upgrade that we are planning includes full-energy, top-off injection with higher storage-ring current and the replacement of five first-generation insertion devices with nine state-of-the art insertion devices and four new application-specific beamlines now being identified in a strategic planning process. The upgrade will help keep the ALS at the forefront of soft x-ray synchrotron light sources for the next two decades.

Chemla, Daniel S.; Feinberg, Benedict; Hussain, Zahid; Kirz,Janos; Krebs, Gary F.; Padmore, Howard A.; Robin, David S.; Robinson,Arthur L.; Smith, Neville V.

2004-08-05T23:59:59.000Z

452

JEFFERSON LAB 12 GEV CEBAF UPGRADE  

Science Conference Proceedings (OSTI)

The existing continuous electron beam accelerator facility (CEBAF) at Thomas Jefferson National Accelerator Facility (TJNAF) is a 5-pass, recirculating cw electron Linac operating at approx6 GeV and is devoted to basic research in nuclear physics. The 12 GeV CEBAF Upgrade is a $310 M project, sponsored by the Department of Energy (DOE) Office of Nuclear Physics, that will expand its research capabilities substantially by doubling the maximum energy and adding major new experimental apparatus. The project received construction approval in September 2008 and has started the major procurement process. The cryogenic aspects of the 12 GeV CEBAF Upgrade includes: doubling the accelerating voltages of the Linacs by adding ten new high-performance, superconducting radiofrequency (SRF) cryomodules (CMs) to the existing 42 1/4 cryomodules; doubling of the 2 K cryogenics plant; and the addition of eight superconducting magnets.

Rode, C. H. [Thomas Jefferson National Accelerator Facility, Newport News, Virginia, 23606 (United States)

2010-04-09T23:59:59.000Z

453

CHALLENGES FOR THE SNS RING ENERGY UPGRADE  

Science Conference Proceedings (OSTI)

The Oak Ridge Spallation Neutron Source accumulator ring presently operates at a beam power of about 1 MW with a beam energy of about 910 MeV. A power upgrade is planned to increase the beam energy to 1.3 GeV. For the accumulator ring this mostly involves modifications to the injection and extraction sections. A variety of modifications to the existing injection section were necessary to achieve 1 MW, and the tools developed and the lessons learned from this work are now being applied to the design of the new injection section. This paper will discuss the tools and the lessons learned, and also present the design and status of the upgrades to the accumulator ring.

Plum, Michael A [ORNL; Gorlov, Timofey V [ORNL; Holmes, Jeffrey A [ORNL; Hunter, W Ted [ORNL; Roseberry, Jr., R Tom [ORNL; Wang, Jian-Guang [ORNL

2012-01-01T23:59:59.000Z

454

Idaho Chemical Processing Plant product denitrator upgrade  

SciTech Connect

The uranium product denitrator at the Idaho Chemical Processing Plant has had serious operating problems since 1970, including inadequate contamintion control, fluidized bed caking, frequent bed heater failure, product overflow plugging, and poor feed control. These problems were minimized through selective redesign and upgrade of the process equipment as part of a process upgrade program completed in March 1981. Following startup and testing of the rebuilt product denitrator, 1044 kg of enriched uranium was processed in three weeks while demonstrating greater reliability, ease of operation, and improved contamination control. To maximize personnel safety in the future, the denitrator vessel should be made critically safe by geometry and process instrumentation isolated from the process for semi-remote operation.

Rindfleisch, J.A.; Durst, P.C.; Dahl, C.A.; Casterline, C.E.; Petig, A.V.

1982-05-01T23:59:59.000Z

455

Upgrade of the Proton West secondary beamline  

SciTech Connect

As originally designed and operated, protons entering PW6 were steered by a series of EPB dipoles into a single interaction length beryllium target, some 43 feet from the enclosure wall. Ensuing secondary beams, either p{sup +}/{pi}{sup +} or p{sup -}/{pi}{sup -}, were collected by a string of quadrupoles following the target, steered westward, away from the Proton Center line, through PW6 and PW7, and ultimately focussed on experiment production targets located within the large PW8 hall. Around the Spring of 1988 it was decided to upgrade the existing Proton West secondary beamline to allow for transport of a primary proton beam, anticipated to be either 800 or 900 GeV/c, through PW8. This upgrade project, which is now nearing completion, was largely motivated by the then recent approval of E-771, a hadronic beauty production experiment located in PW8. E-771 represents the third in a series of experiments for the large-acceptance dimuon spectrometer presently located at the end of the Proton West beamline. This Technical Memo is a summary of the upgrade --- an explanation of the underlying strategy and a documentation of the final locations of the secondary beamline elements. 6 refs., 2 figs., 2 tabs.

Spiegel, L.

1989-10-10T23:59:59.000Z

456

Analysis of Innovative HVAC System Technologies and Their Application for Office Buildings in Hot and Humid Climates  

E-Print Network (OSTI)

ABSTRACT Analysis of Innovative HVAC System Technologies and Their Application for Office Buildings in Hot and Humid Climates. (December 2010) Oleksandr Tanskyi, B.S., National Technical University of Ukraine; M.S., National Technical University of Ukraine Co-Chairs of Advisory Committee: Dr. David E. Claridge Dr. Michael B. Pate The commercial buildings sector in the United States used 18% (17.93 Quads) of the U.S. primary energy in 2006. Office buildings are the largest single energy consumption category in the commercial buildings sector of the United States with annual energy consumption around 1.1 Quads. Traditional approaches used in commercial building designs are not adequate to save energy in both depth and scale. One of the most effective ways to reduce energy consumption is to improve energy performance of HVAC systems. High-performance HVAC systems and components, as well as application of renewable energy sources, were surveyed for buildings in hot and humid climates. An analysis of performance and energy saving potential estimation for selected HVAC systems in hot and humid climates was developed based on energy consumption simulation models in DOE-2.1E. A calibrated energy consumption model of an existing office building located in the hot and humid climate conditions of Texas was developed. Based on this model, the energy saving potential of the building was estimated. In addition, energy consumption simulation models were developed for a new office building, including simulation of energy saving measures that could be achieved with further improvements of HVAC system above the energy conservation codes requirements. The theoretical minimum energy consumption level for the same office building was estimated for the purpose of evaluating the whole building energy efficiency level. The theoretical minimum energy consumption model of the office building was designed to provide the same level of comfort and services to the building occupants as provided in the actual building simulation model. Finally, the energy efficiency of the building that satisfies valid energy conservation codes and the building with an improved HVAC system was estimated based on theoretically minimum energy consumption level. The analysis provided herein can be used for new building practitioners and existing building owners to evaluate energy reduction potential and the performance of innovative technologies such as dedicated outdoor air system, displacement ventilation, improved cooling system efficiency, air source heat pumps and natural gas heat pumps.

Tanskyi, Oleksandr

2010-12-01T23:59:59.000Z

457

General Methodology Combining Engineering Optimization of Primary HVAC and R Plants with Decision Analysis Methods--Part II: Uncertainty and Decision Analysis  

SciTech Connect

A companion paper to Jiang and Reddy that presents a general and computationally efficient methodology for dyanmic scheduling and optimal control of complex primary HVAC&R plants using a deterministic engineering optimization approach.

Jiang, Wei; Reddy, T. A.; Gurian, Patrick

2007-01-31T23:59:59.000Z

458

Market assessment for active solar heating and cooling products. Category B: a survey of decision-makers in the HVAC marketplace. Final report  

DOE Green Energy (OSTI)

A comprehensive evaluation of the market for solar heating and cooling products for new and retrofit markets is reported. The emphasis is on the analysis of solar knowledge among HVAC decision makers and a comprehensive evaluation of their solar attitudes and behavior. The data from each of the following sectors are described and analyzed: residential consumers, organizational and manufacturing buildings, HVAC engineers and architects, builders/developers, and commercial/institutional segments. (MHR)

None

1980-09-01T23:59:59.000Z

459

Initial Business Case Analysis of Two Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes  

SciTech Connect

The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Dramatic efficiency improvements are necessary to enable progress toward the NZEH goals, and will require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development. Eleven system concepts with central air distribution ducting and nine multi-zone systems were selected and their annual and peak demand performance estimated for five locations: Atlanta (mixed-humid), Houston (hot-humid), Phoenix (hot-dry), San Francisco (marine), and Chicago (cold). Performance was estimated by simulating the systems using the TRNSYS simulation engine (Solar Energy Laboratory et al. 2006) in two 1800-ft{sup 2} houses--a Building America (BA) benchmark house and a prototype NZEH taken from BEopt results at the take-off (or crossover) point (i.e., a house incorporating those design features such that further progress towards ZEH is through the addition of photovoltaic power sources, as determined by current BEopt analyses conducted by NREL). Results were summarized in a project report, 'HVAC Equipment Design options for Near-Zero-Energy Homes--A Stage 2 Scoping Assessment,' ORNL/TM-2005/194 (Baxter 2005). The 2005 study report describes the HVAC options considered, the ranking criteria used, and the system rankings by priority. Table 1 summarizes the energy savings potential of the highest scoring options from the 2005 study for all five locations.

Baxter, Van D [ORNL

2006-11-01T23:59:59.000Z

460

Proper Setup of HVAC System in Conjunction with Sound Building 'Skin' Design for Alleviation of IAQ and Energy Performance Problems  

E-Print Network (OSTI)

Energy consumption in buildings is a growing concern. Many buildings are energy hogs simply because they were not set up properly to begin with. The building envelope and infiltration of unconditioned air is also a major concern in hot and humid climates, not only because of the loss of energy, but also because of damage that can result to insulation, drywall, and structure in addition to promotion of mold and mildew growth. Proper setup of the HVAC system, in conjunction with sound building “skin” design, can alleviate many of these problems. This paper will explain how most mixed air HVAC systems are set up with problems to begin with and how to identify and solve those problems. It will explain different control schemes that specifically deal with proper building pressurization

Rosenberg, M.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Modeling Building Energy Use and HVAC Efficiency Improvements in Extreme Hot and Humid Regions  

E-Print Network (OSTI)

An energy analysis was performed on the Texas A & M University at Qatar building in Doha, Qatar. The building and its HVAC systems were modeled using EnergyPlus. Building chilled water and electrical data were collected to validate the computer simulation. The simulated monthly electricity consumption was within plus/minus 5 percent of the metered building data. Ninety-five percent of simulated hourly electricity data in a day were within plus/minus 10 percent of metered data. Monthly chilled water demand was within plus/minus 18 percent of measurements, and simulated monthly demand was correlated to metered monthly values with an R-squared correlation coefficient of 0.95. Once the simulation was verified with the metered data, an optimization of the building's HVAC systems was performed. Better utilizing the building's variable speed fans at part loads showed potential annual electricity savings of 16 percent over the base case, with another 22 percent savings in chilled water energy. After converting chilled water savings to equivalent chiller electricity savings, the potential utility cost savings over the base case were found to be $90,000/yr at local utility rates. Reducing outdoor air intake to ASHRAE indoor air quality minimums yielded an additional 17 percent in potential chilled water savings and brought total monetary savings over the base case to $110,000/yr. Using a dedicated outside air system to precisely control individual zone ventilation showed potential for an additional 12 percent chilled water savings and $14,000 in yearly utility savings, while also eliminating cases of under-ventilation. A hypothetical retrofit of fan powered terminal units (FPTU's) resulted in energy savings only at very low minimum flow rates, below ventilation standards. Savings were never more than 20 percent over the no-fan case. Series FPTU's showed no savings at any flow setting and negligible difference was found between ECM and SCR motor control. Finally, the dependence on climate of each improvement was studied. Simulations were run in the relatively milder climates of Houston and Phoenix and compared to those found for Doha. It was found that variable speed fan operation is a more cost effective option for milder climates, while outside air control is more cost effective in extreme hot and humid climates such as Doha. Future study is needed to make the FPTU model valid for different climates and flow ranges.

Bible, Mitchell

2011-08-01T23:59:59.000Z

462

Field Evaluation of Desiccant-Integrated HVAC Systems: A Review of Case Studies in Multiple Commercial/Institutional Building Types  

E-Print Network (OSTI)

An independent field research effort co-funded by the Gas Research Institute and The U.S. Department of Energy (DOE) Oak Ridge National Laboratory is documenting the performance and energy usage characteristics of active desiccant-integrated HVAC systems at a variety of commercial and institutional facilities. The tests comprise the instrumentation and one-year-plus monitoring of two or more nearly identical sites, one serving as the test site and the others as base-case or control sites. While the research program is ongoing, work completed in two market sectors, retail and lodging, indicates that there are significant comfort control, energy usage and equipment efficiency benefits to be derived from integrating desiccant units into HVAC system design to handle latent and sensible loads independently. In some cases, installed first costs associated with including desiccant units may be lower if the HVAC system is optimized to take advantage of reduced conventional cooling equipment requirements and downsized ductwork In most cases, lower energy consumption and/or reduced energy costs may provide reasonable payback of first cost premiums.

Yborra, S. C.

1998-01-01T23:59:59.000Z

463

An Experimental Evaluation of HVAC-Grade Carbon-Dioxide Sensors: Part 3, Humidity, Temperature, and Pressure Sensitivity Test Results  

Science Conference Proceedings (OSTI)

This is the third paper in a four-part series reporting on the test and evaluation of typical carbon-dioxide sensors used in building HVAC applications. Fifteen models of NDIR HVAC-grade CO2 sensors were tested and evaluated to determine the humidity, temperature, and pressure sensitivity of the sensors. This paper reports the performance of the sensors at various relative humidity, temperature, and pressure levels common to building HVAC applications and provides a comparison with manufacturer specifications. Among the 15 models tested, eight models have a single-lamp, single-wavelength configuration, four models have a dual-lamp, single-wavelength configuration, and three models have a single-lamp, dual-wavelength configuration. The sensors were tested in a chamber specifically fabricated for this research. A description of the apparatus and the method of test are described in Part 1 (Shrestha and Maxwell 2009). The test result showed a wide variation in humidity, temperature, and pressure sensitivity of CO2 sensors among manufacturers. In some cases, significant variations in sensor performance exist between sensors of the same model. Even the natural variation in relative humidity could significantly vary readings of some CO2 sensor readings. The effects of temperature and pressure variation on NDIR CO2 sensors are unavoidable without an algorithm to compensate for the changes. For the range of temperature and pressure variation in an air-conditioned space, the effect of pressure variation is more significant compared to the effect of temperature variation.

Shrestha, Som S [ORNL; Maxwell, Dr. Gregory [Iowa State University

2010-01-01T23:59:59.000Z

464

County Aims to Save with Upgrades | Department of Energy  

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

County Aims to Save with Upgrades County Aims to Save with Upgrades County Aims to Save with Upgrades August 5, 2010 - 6:50pm Addthis Paul Lester Communications Specialist, Office of Energy Efficiency and Renewable Energy Fulton County, Georgia is an example of how large-scale energy upgrades can save local governments millions of dollars and develop a new green workforce. A retrofit program, funded by an $814,300 Energy Efficiency and Conservation Block Grant (EECBG) through the American Recovery and Reinvestment Act, was the topic of a recent video. Under the program, more than a dozen county facilities are being upgraded with equipment such as occupancy sensors, digital thermostats and LED exit signs. County workers will also be trained on how to conduct the upgrades and keep buildings energy efficient.

465

Innovative Technology Improves Upgrading Process for Unconventional Oil  

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

Technology Improves Upgrading Process for Unconventional Technology Improves Upgrading Process for Unconventional Oil Resources Innovative Technology Improves Upgrading Process for Unconventional Oil Resources April 9, 2013 - 1:57pm Addthis Washington, DC - An innovative oil-upgrading technology that can increase the economics of unconventional petroleum resources has been developed under a U.S. Department of Energy -funded project. The promising technology, developed by Ceramatec of Salt Lake City, Utah, and managed by the Office of Fossil Energy's National Energy Technology Laboratory, has been licensed to Western Hydrogen of Calgary for upgrading bitumen or heavy oil from Canada. A new company, Field Upgrading (Calgary, Alberta), has been formed dedicated to developing and commercializing the technology. Heavy oil is crude oil that is viscous and requires thermally enhanced oil

466

Innovative Technology Improves Upgrading Process for Unconventional Oil  

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

Innovative Technology Improves Upgrading Process for Unconventional Innovative Technology Improves Upgrading Process for Unconventional Oil Resources Innovative Technology Improves Upgrading Process for Unconventional Oil Resources April 9, 2013 - 1:57pm Addthis Washington, DC - An innovative oil-upgrading technology that can increase the economics of unconventional petroleum resources has been developed under a U.S. Department of Energy -funded project. The promising technology, developed by Ceramatec of Salt Lake City, Utah, and managed by the Office of Fossil Energy's National Energy Technology Laboratory, has been licensed to Western Hydrogen of Calgary for upgrading bitumen or heavy oil from Canada. A new company, Field Upgrading (Calgary, Alberta), has been formed dedicated to developing and commercializing the technology.

467

Energy Efficiency Upgrades: Benefiting Homeowners and the Environment |  

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

Upgrades: Benefiting Homeowners and the Upgrades: Benefiting Homeowners and the Environment Energy Efficiency Upgrades: Benefiting Homeowners and the Environment May 10, 2013 - 4:37pm Addthis Energy efficient upgrades helped Margie Garmey save money while reducing her impact on the planet. | Photo courtesy of Margie Garmey. Energy efficient upgrades helped Margie Garmey save money while reducing her impact on the planet. | Photo courtesy of Margie Garmey. Rebecca Matulka Rebecca Matulka Digital Communications Specialist, Office of Public Affairs Looking for ways to save energy? Learn how to do a DIY home energy audit to help you identify and prioritize some energy efficiency upgrades. Check out Energy Saver for tips and advice on ways to save energy and money. When Margie Garmey and her partner bought their newly constructed two-story

468

County Aims to Save with Upgrades | Department of Energy  

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

Aims to Save with Upgrades Aims to Save with Upgrades County Aims to Save with Upgrades August 5, 2010 - 6:50pm Addthis Paul Lester Communications Specialist, Office of Energy Efficiency and Renewable Energy Fulton County, Georgia is an example of how large-scale energy upgrades can save local governments millions of dollars and develop a new green workforce. A retrofit program, funded by an $814,300 Energy Efficiency and Conservation Block Grant (EECBG) through the American Recovery and Reinvestment Act, was the topic of a recent video. Under the program, more than a dozen county facilities are being upgraded with equipment such as occupancy sensors, digital thermostats and LED exit signs. County workers will also be trained on how to conduct the upgrades and keep buildings energy efficient.

469

Upgrade of the ALICE Inner Tracking System  

E-Print Network (OSTI)

The Inner Tracking System (ITS) is the key ALICE detector for the study of heavy flavour production at LHC. Heavy flavor can be studied via the identification of short-lived hadrons containing heavy quarks which have a mean proper decay length in the order of 100-300 $\\mu$m. To accomplish this task, the ITS is composed of six cylindrical layers of silicon detectors (two pixel, two drift and two strip) with a radial coverage from 3.9 to 43 cm and a material budget of 1.1% X0 per layer. %In particular, the properties of the two innermost layers define the ITS performance in measuring the displaced vertex of such short-lived particles. In order to enhance the ALICE physics capabilities, and, in particular, the tracking performance for heavy-flavour detection, the possibility of an ITS upgrade has been studied in great detail. It will make use of the spectacular progress made in the field of imaging sensors over the last ten years as well as the possibility to install a smaller radius beampipe. The upgraded detector will have greatly improved features in terms of: the impact parameter resolution, standalone tracking efficiency at low $p_{t}$, momentum resolution and readout capabilities. The Conceptual Design Report, which covers the design and performance requirements, the upgrade options, as well as the necessary R&D efforts, was made public in September 2012. An intensive R&D program has been launched to review the different technological options under consideration. The new detector should be ready to be installed during the long LHC shutdown period scheduled in 2017-2018.

Stefan Rossegger

2012-11-22T23:59:59.000Z

470

Emergency Diesel Generator Digital Control System Upgrade Requirements  

Science Conference Proceedings (OSTI)

This interim report documents the development of system requirements for a digital control system upgrade to the station emergency diesel generators (EDGs). Operators of nuclear power plants (NPPs) must be able to replace and upgrade equipment in a cost-effective manner while continuing to meet safety and reliability requirements and controlling modification costs. Upgrades to plant equipment—especially instrumentation and control (I&C) systems—typically involve replacement of analog ...

2013-12-18T23:59:59.000Z

471

Methods and apparatuses for preparing upgraded pyrolysis oil  

SciTech Connect

Methods and apparatuses for preparing upgraded pyrolysis oil are provided herein. In an embodiment, a method of preparing upgraded pyrolysis oil includes providing a biomass-derived pyrolysis oil stream having an original oxygen content. The biomass-derived pyrolysis oil stream is hydrodeoxygenated under catalysis in the presence of hydrogen to form a hydrodeoxygenated pyrolysis oil stream comprising a cyclic paraffin component. At least a portion of the hydrodeoxygenated pyrolysis oil stream is dehydrogenated under catalysis to form the upgraded pyrolysis oil.

Brandvold, Timothy A; Baird, Lance Awender; Frey, Stanley Joseph

2013-10-01T23:59:59.000Z

472

Syngas Upgrading to Hydrocarbon Fuels Technology Pathway  

DOE Green Energy (OSTI)

This technology pathway case investigates the upgrading of woody biomass derived synthesis gas (syngas) to hydrocarbon biofuels. While this specific discussion focuses on the conversion of syngas via a methanol intermediate to hydrocarbon blendstocks, there are a number of alternative conversion routes for production of hydrocarbons through a wide array of intermediates from syngas. Future work will also consider the variations to this pathway to determine the most economically viable and lowest risk conversion route. Technical barriers and key research needs have been identified that should be pursued for the syngas-to-hydrocarbon pathway to be competitive with petroleum-derived gasoline-, diesel- and jet-range hydrocarbon blendstocks.

Talmadge, M.; Biddy, M.; Dutta, A.; Jones, S.; Meyer, A.

2013-03-01T23:59:59.000Z

473

Upgrade Your Refinery for Energy Conservation  

E-Print Network (OSTI)

Upgrading existing refineries for efficient energy utilization imposes strict restraints upon design engineers. Present and future production requirements must be defined. Reliable operating data must be obtained from historical records and test runs to accurately define actual performance of each piece of equipment. A complete simulation model of the facility is developed and tested. Future operations are evaluated using the model to define heat and material balance requirements for all projected operations. Energy conservation projects are evaluated with the model to define energy savings over the life of each project. A discounted cash flow analysis is formulated and an optimum set of projects yielding maximum rates of return are selected for implementation.

Johnnie, D. H., Jr.; Klooster, H. J.

1983-01-01T23:59:59.000Z

474

The value of steam turbine upgrades  

Science Conference Proceedings (OSTI)

Technological advances in mechanical and aerodynamic design of the turbine steam path are resulting in higher reliability and efficiency. A recent study conducted on a 390 MW pulverized coal-fired unit revealed just how much these new technological advancements can improve efficiency and output. The empirical study showed that the turbine upgrade raised high pressure (HP) turbine efficiency by 5%, intermediate pressure (IP) turbine efficiency by 4%, and low pressure (LP) turbine efficiency by 2.5%. In addition, the unit's highest achievable gross generation increased from 360 MW to 371 MW. 3 figs.

Potter, K.; Olear, D.; [General Physics Corp. (United States)

2005-11-01T23:59:59.000Z

475

N reactor safety upgrades final status report  

Science Conference Proceedings (OSTI)

This document describes the requirements, objectives, work completed, and issues resolved for all safety upgrades recommended by the various expert panels (e.g., Roddis), National Academy of Sciences (NAS), and Westinghouse Independent Safety Appraisal (WISA) team. This report reflects the status of the recommendations at the time of publication, while the reactor is being placed in cold standby. Each recommendation required a resolution, a closure process if closed, and a punchlist reference if open and required for restart. These recommendations are maintained on databases that were updated periodically as work was completed or punchlisted. The databases and files are to be retained with the N Reactor Standby files.

Foreman, S.K.; Rainey, T.E.; Erpenbeck, E.G.

1990-02-01T23:59:59.000Z

476

Economic Options for Upgrading Waste Heat  

E-Print Network (OSTI)

There are at least six major types of equipment that upgrade waste heat: (1) thermocompressor; (2) electric drive compressor heat pump; (3) absorption heat pump; (4) high temperature heat powered compressor heat pump; (5) reverse absorption heat pump; and (6) waste heat driven compressor heat pump. Some of these are not widely known, and there has been a tendency to ascribe the characteristics and limitations of the most well-known member to all members of the group. This paper demonstrates the wide variation that actually exists between the different options, and highlights the considerations necessary to ensure the most economic choice for a particular application.

Erickson, D. C.

1983-01-01T23:59:59.000Z

477

Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy...  

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

State and local government resources Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy: AstraZeneca - Newark This profiles explains how Astrazeneca's Newark...

478

Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy...  

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

State and local government resources Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy: Allergan - Westport This profiles explains how Allergan's Westport facility...

479

Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy...  

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

State and local government resources Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy: Boeing Philadelphia This profiles explains how Beoing's Philadelphia plant...

480

Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy...  

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

State and local government resources Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy: Cargill Krefeld This profiles explains how Cargill's Krefeld mill saved...

Note: This page contains sample records for the topic "hvac upgrade cxs" 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

Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy...  

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

State and local government resources Profiles in Energy Efficiency Boiler Upgrades Save Money & Energy: GM Marion & Orion This profiles explains how GM's Marion & Orion facilities...

482

List of Steam-system upgrades Incentives | Open Energy Information  

Open Energy Info (EERE)

upgrades Incentives upgrades Incentives Jump to: navigation, search The following contains the list of 100 Steam-system upgrades Incentives. CSV (rows 1 - 100) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AlabamaSAVES Revolving Loan Program (Alabama) State Loan Program Alabama Commercial Industrial Institutional Building Insulation Doors Energy Mgmt. Systems/Building Controls Lighting Lighting Controls/Sensors Steam-system upgrades Water Heaters Windows Biodiesel Biomass CHP/Cogeneration Ethanol Fuel Cells using Renewable Fuels Geothermal Electric Hydroelectric energy Landfill Gas Photovoltaics Renewable Fuels Solar Water Heat Commercial Refrigeration Equipment Natural Gas Yes Ameren Missouri (Gas) - Business Energy Efficiency Program (Missouri) Utility Rebate Program Missouri Commercial

483

EA-0907: Idaho National Engineering Laboratory Sewer System Upgrade...  

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

Field Sites Power Marketing Administration Other Agencies You are here Home EA-0907: Idaho National Engineering Laboratory Sewer System Upgrade Project, Idaho Falls, Idaho...

484

Income Tax Deduction for Energy Efficiency Upgrades (Idaho) ...  

Open Energy Info (EERE)

Facebook icon Twitter icon Income Tax Deduction for Energy Efficiency Upgrades (Idaho) This is the approved revision of this page, as well as being the most recent. Jump...

485

Energy Upgrade Program Revitalizing Oregon | Department of Energy  

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

Act. The program tapped nonprofit Energy Trust of Oregon to provide free energy audits for the participating businesses. Two-year payback When the energy upgrades are...

486

Plains & Eastern Clean Line Project Proposal for New or Upgraded...  

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

PROJECT PROPOSAL FOR NEW OR UPGRADED TRANSMISSION LINE PROJECTS UNDER SECTION 1222 OF THE ENERGY POLICY ACT OF 2005 JULY 2010 TABLE OF CONTENTS INTRODUCTION 1. The Challenge...

487

SRI2013 | Workshop 3 - Facility Upgrades and High ...  

Science Conference Proceedings (OSTI)

... 11:45 — 12:15, Christoph Steier (LBNL) DL-ALS, a potential soft x-ray, diffraction-limited upgrade of the Advanced Light Source. ...

488

Energy Upgrades Pay Off for Taxpayers and Feds  

Science Conference Proceedings (OSTI)

... savings from the energy upgrades, based on 2007 energy prices, came to ... software to figure in a three percent annual energy price escalation rate. ...

2011-07-19T23:59:59.000Z

489

Plains & Eastern Clean Line Project Proposal for New or Upgraded...  

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

Plains & Eastern Clean Line Project Proposal for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy Act of 2005 Plains & Eastern Clean Line Project...

490

EA-1190: Wastewater Treatment Capability Upgrade, Amarillo, Texas  

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

This EA evaluates the environmental impacts for the proposed upgrade of the U.S. Department of Energy Pantex Plant Wastewater Treatment Plant in Amarillo, Texas.

491

FRN Request for Proposals for New or Upgraded Transmission Line...  

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

Western Area Power Administration Request for Proposals for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy Act of 2005 AGENCY:...

492

NERSC's Franklin Supercomputer Upgraded to Double Its Scientific...  

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

system. The Department of Energy's (DOE) National Energy Research Scientific Computing (NERSC) Center has officially accepted a series of upgrades to its Cray XT4 supercomputer,...

493

ENERGY STAR Building Upgrade Manual Chapter 11: Supermarkets...  

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

care resources Small business resources State and local government resources ENERGY STAR Building Upgrade Manual Chapter 11: Supermarkets and Grocery Stores The Building...

494

ENERGY STAR Building Upgrade Manual Chapter 1: Introduction ...  

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

STAR Building Upgrade Manual Chapter 1: Introduction Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings...

495

EA-1937: Pacific Direct Intertie Upgrade Project, Lake, Jefferson...  

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

Lake, Jefferson, Crook, Deschutes, and Wasco Co, OR SUMMARY This project would replace aging equipment at BPA's Celilo converter station and to upgrade equipment on the...

496

ENERGY STAR Building Upgrade Manual Chapter 2: Benchmarking ...  

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

efficiency upgrades presented in an easy-to-understand framework designed especially for ENERGY STAR partners. This 12-page chapter defines benchmarking, what successful...

497

ALS control system IP I/O module upgrade  

E-Print Network (OSTI)

the Fast Orbit Feedback at the ALS, Proceedings of PAC 2003,ALS Control System IP I/O Module Upgrade* J. M . Weber, M .

Weber, Jonah M.; Chin, Michael

2004-01-01T23:59:59.000Z

498

Community based outreach strategies in residential energy upgrade programs  

E-Print Network (OSTI)

Home energy upgrades can reduce residential energy consumption and improve indoor conditions, thereby realizing environmental, economic, health and other social benefits. Utilities, government and other actors have established ...

McEwen, Brendan (Brendan Carl Francis)

2012-01-01T23:59:59.000Z

499

Sandia upgrades hardware for NNSA training course | National...  

National Nuclear Security Administration (NNSA)

upgrades hardware for NNSA training course | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy...

500

Ribbon cutting marks chemistry laboratory upgrades at Northern...  

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

November 2013 Ribbon cutting marks chemistry laboratory upgrades at Northern New Mexico College Community Connections: Our link to Northern New Mexico Communities Latest...