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


1

Optimal Control of Building HVAC Systems in the Presence of Imperfect Predictions  

E-Print Network [OSTI]

minimization of building hvac systems using model predictivealgorithm design for hvac systems in energy efficient build-optimal control design for HVAC systems,” in Dynamic System

Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

2014-01-01T23:59:59.000Z

2

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...

Tanskyi, O.

2011-01-01T23:59:59.000Z

3

Co-design of Control Algorithm and Embedded Platformfor Building HVAC Systems  

E-Print Network [OSTI]

algorithm design for hvac systems in energy efficientOptimal control of HVAC systems in the presence of imperfectminimization of building hvac systems using model predictive

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

2013-01-01T23:59:59.000Z

4

Pitfalls in Building and HVAC Systems  

E-Print Network [OSTI]

the summer savings. ? Consider all forms of savings, not just en ergy. Opportunities are often missed be cause only energy savings are consideted. For example, the installation of extetior wall insulation or aluminum thermopane win dows result in a...PITFALLS IN BUILDING AND HVAC SYSTEMS B. N. Gidwani, P.E. Roy F. Weston, Inc. West Chester, Pennsylvania ABSTRACT The purpose of an energy audit is to identify and analyze areas of energy consumption and to pro pose methods of conservation...

Gidwani, B. N.

5

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.

6

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

7

Comparison of Building Energy Modeling Programs: HVAC Systems  

E-Print Network [OSTI]

LBNL-6432E Comparison of Building Energy Modeling Programs: HVAC Systems Xin Zhou1 , Tianzhen Hong2 programs (BEMPs) for HVAC calculations: EnergyPlus, DeST, and DOE-2.1E. This is a joint effort between purposes, BEMPs can be divided into load modules and HVAC system modules. This technical report

8

Optimal Control of Building HVAC Systems in the Presence of Imperfect Predictions, ASME Dynamic System Control Conference  

E-Print Network [OSTI]

optimal control design for HVAC systems,” in Dynamic Systemalgorithm design for hvac systems in energy efficient build-OPTIMAL CONTROL OF BUILDING HVAC SYSTEMS IN THE PRESENCE OF

Maasoumy, Mehdi

2012-01-01T23:59:59.000Z

9

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

10

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

11

Index to Evaluate Energy Efficiency of the Building HVAC System  

E-Print Network [OSTI]

1An Index to Evaluate Energy Efficiency of the Entire Building HVAC System Presented by Dr. Claridge Date: 09/15/2014 ESL-IC-14-09-15 Proceedings of the 14th International Conference for Enhanced Building Operations, Beijing, China, September 14..., Beijing, China, September 14-17, 2014 3• Why we need the Energy/Load Ratio 1. Building 2. HVAC Systems 3. Common Index • Building sector consumes 40% of total energy usage in US (Residential buildings – 22%, Commercial building – 19%) • HVAC systems...

Wang, L.; Wang, L.; Claridge,D.

2014-01-01T23:59:59.000Z

12

Comparison of Building Energy Modeling Programs: HVAC Systems  

E-Print Network [OSTI]

and Mehry Yazdanian. Comparisons of HVAC Simulations betweeninformation Comparison of HVAC System Simulations inCLT (kW) Comparison of HVAC System Simulations in Different

Zhou, Xin

2014-01-01T23:59:59.000Z

13

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

14

HVAC & Building Management Control System Energy Efficiency Replacements  

SciTech Connect (OSTI)

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

15

Model Predictive Control Approach to Online Computation of Demand-Side Flexibility of Commercial Buildings HVAC Systems for Supply Following  

E-Print Network [OSTI]

of commercial building HVAC fan as ancillary service foralgorithm design for hvac systems in energy efficientoptimal control design for HVAC systems,” in Dynamic System

Maasoumy, Mehdi

2014-01-01T23:59:59.000Z

16

A Scenario-based Predictive Control Approach to Building HVAC Management Systems  

E-Print Network [OSTI]

A Scenario-based Predictive Control Approach to Building HVAC Management Systems Alessandra Parisio and Air Conditioning (HVAC) systems while minimizing the overall energy use. The strategy uses

Johansson, Karl Henrik

17

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

18

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

19

Comparison of Control Strategies for Energy Efficient Building HVAC Systems  

E-Print Network [OSTI]

optimal control design for HVAC systems. In Dynamic SystemOpti- mal control of HVAC systems in the presence of imper-consumption minimization of hvac sys- tems using model

Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

2014-01-01T23:59:59.000Z

20

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

Note: This page contains sample records for the topic "building hvac systems" 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

Energy Consumption Analyses of Frequently-used HVAC System Types in High Performance Office Buildings.  

E-Print Network [OSTI]

??The high energy consumption of heating, ventilation and air-conditioning (HVAC) systems in commercial buildings is a hot topic. Office buildings, a typical building set of… (more)

Yan, Liusheng

2014-01-01T23:59:59.000Z

22

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

23

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

24

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.

25

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

E-Print Network [OSTI]

AN APPLICATION OF STATE-OF-THE-ART HVAC AND BUILDING SYSTEMS DONALD P. FIORINO, M.S., P.E. Energy Conservation Manager Texas Instruments, Inc. Defense Systems and Electronics Group Dallas, Texas ABSTRACT 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...

Fiorino, D. P.

26

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

27

Building HVAC Control System Interaction Issues: Two Case Studies  

E-Print Network [OSTI]

Direct Digital Control (DDC) allows HVAC equipment to be controlled at an upper level (supervisory control) through commands from a central system, or at a lower-level (local-loop control) by local controllers. The various levels of equipment...

Chen, Q.; Deng, S.; Toole, C.; Xu, C.

2007-01-01T23:59:59.000Z

28

Total and Peak Energy Consumption Minimization of Building HVAC Systems Using Model Predictive Control  

E-Print Network [OSTI]

optimal control design for HVAC systems,’’ in Proc. Dynamicelectricity consumption in hvac using learning- based model-algorithm design for hvac systems in energy efficient

Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

2012-01-01T23:59:59.000Z

29

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

30

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...

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

2007-01-01T23:59:59.000Z

31

Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid  

E-Print Network [OSTI]

optimal control design for HVAC systems,” in Dynamic Systemminimization of building hvac systems using model pre-algorithm design for hvac systems in energy efficient

Maasoumy, Mehdi

2013-01-01T23:59:59.000Z

32

Monitoring-based HVAC Commissioning of an Existing Office Building for Energy Efficiciency  

E-Print Network [OSTI]

Dascalaki E, Gaglia A. HVAC and indoor thermal conditions inCommissioning of Building HVAC Systems for Improving Energyand diagnosis strategy for HVAC systems involving sensor

Wang, Liping

2014-01-01T23:59:59.000Z

33

Thermovote: Participatory Sensing for Efficient Building HVAC Conditioning  

E-Print Network [OSTI]

Thermovote: Participatory Sensing for Efficient Building HVAC Conditioning Varick L. Erickson, Measurement, Performance Keywords HVAC conditioning, PMV, thermal comfort, phones 1 Introduction Recently goal, the service that HVAC systems provide is arguably more important than reducing energy. Before we

Cerpa, Alberto E.

34

Co-simulation of innovative integrated HVAC systems in buildings  

E-Print Network [OSTI]

Developing an Integrated Building Design Tool by Couplingdesign energy ecient building systems in this complex setting, integrated

Trcka, Marija

2010-01-01T23:59:59.000Z

35

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

36

System-Level Monitoring and Diagnosis of Building HVAC System  

E-Print Network [OSTI]

Y. Shu, Building envelope regulations on thermal comfort inof the building envelope on indoor thermal behavior, serveof the building envelope on indoor thermal behavior. This is

Wu, Siyu

2013-01-01T23:59:59.000Z

37

Integration of HVAC System Design with Simplified Duct Distribution...  

Broader source: Energy.gov (indexed) [DOE]

Integration of HVAC System Design with Simplified Duct Distribution - Building America Top Innovation Integration of HVAC System Design with Simplified Duct Distribution - Building...

38

Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes?  

E-Print Network [OSTI]

Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy-extreme weather conditions. #12;Proceedings of Healthy Buildings 2009 Paper 680 Thus, a central forced air

Siegel, Jeffrey

39

Co-simulation of innovative integrated HVAC systems in buildings  

E-Print Network [OSTI]

Canada: International Building Perfor- mance SimulationExternal coupling between building energy simulation andexternal coupling of building energy and air ow modeling

Trcka, Marija

2010-01-01T23:59:59.000Z

40

Modeling Building Thermal Response to HVAC Zoning Virginia Smith  

E-Print Network [OSTI]

Modeling Building Thermal Response to HVAC Zoning Virginia Smith Department of Computer Science HVAC systems account for 38% of building energy usage. Studies have indicated at least 5-15% waste due to unoccu- pied spaces being conditioned. Our goal is to minimize this waste by retrofitting HVAC systems

Whitehouse, Kamin

Note: This page contains sample records for the topic "building hvac systems" 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

Life Cycle cost Analysis of Waste Heat Operated Absorption Cooling Systems for Building HVAC Applications  

E-Print Network [OSTI]

effect from CO2 emission resulting from the combustion of fossil fuels in utility power plants and the use of chlorofluorocarbon refrigerants, which is currently thought to affect depletion of the ozone layer. The ban on fluorocarbon fluids has been...LIFE CYCLE COST ANALYSIS OF WASTE HEAT OPERATED ABSORPTION COOLING SYSTEMS FOR BUILDING HVAC APPLICATIONS V. Murugavel and R. Saravanan Refrigeration and Air conditioning Laboratory Department of Mechanical Engineering, Anna University...

Saravanan, R.; Murugavel, V.

2010-01-01T23:59:59.000Z

42

Model-Based Hierarchical Optimal Control Design for HVAC Systems  

E-Print Network [OSTI]

trol algorithm design for hvac systems in energy efficientH.R. Sualem. Building and HVAC System simulation with theOPTIMAL CONTROL DESIGN FOR HVAC SYSTEMS Mehdi Maasoumy,

Maasoumy, Mehdi; Pinto, Alessandro; Sangiovanni-Vincentelli, Alberto

2014-01-01T23:59:59.000Z

43

Software for fault detection in HVAC systems in commercial buildings  

E-Print Network [OSTI]

The building sector of the United States currently consumes over 41% of the United States primary energy supply. Estimates suggest that between 5 and 30% of any building's annual energy consumption is unknowingly wasted ...

Deshmukh, Suhrid Avinash

2014-01-01T23:59:59.000Z

44

Proposal for the award of a contract for the design, supply, installation and commissioning of an HVAC (Heating, Ventilation and Air Conditioning) system for Building 3862  

E-Print Network [OSTI]

Proposal for the award of a contract for the design, supply, installation and commissioning of an HVAC (Heating, Ventilation and Air Conditioning) system for Building 3862

2014-01-01T23:59:59.000Z

45

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

SciTech Connect (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

46

Duty-Cycling Buildings Aggressively: The Next Frontier in HVAC Control  

E-Print Network [OSTI]

Duty-Cycling Buildings Aggressively: The Next Frontier in HVAC Control Yuvraj Agarwal, Bharathan the dominant energy consumer is the HVAC system. Despite this fact, in most buildings the HVAC system is run sensing to guide the operation of a building HVAC system. We show how we can enable aggressive duty

Simunic, Tajana

47

Comparison of Building Energy Modeling Programs: HVAC Systems  

E-Print Network [OSTI]

Four Pipe Fan Coil; Four Pipe Induction Unit; Heating andTwo Pipe Fan Coil; Two Pipe Induction Unit; Unit Heater;units (AHUs) – four CAV systems, four VAV systems, and one fan coil

Zhou, Xin

2014-01-01T23:59:59.000Z

48

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

49

Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid  

E-Print Network [OSTI]

Efficient Building Control Systems, Smart Grid and AircraftCommercial Building HVAC Fan as Ancillary Service for Smart

Maasoumy, Mehdi

2013-01-01T23:59:59.000Z

50

IMPLEMENTATION OF A HYBRID CONTROLLER FOR CRITICAL BUILDING HVAC SYSTEMS  

SciTech Connect (OSTI)

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 systems. When operators rebalance the plant, variation from the desired gradients can occur and the operating conditions can change enough that the PID parameters are no longer adequate to maintain a stable system. As the goal of the ventilation control system is to optimize the pressure gradients and associated flows for the plant, Linear Quadratic Tracking (LQT) is a method that provides a time-based approach to guiding plant interactions. However, LQT methods are susceptible to modeling and measurement errors, and therefore the additional use of soft computing methods is proposed for implementation to account for these errors and nonlinearities. The performance of the resulting hybrid controller is demonstrated through simulation and experimental testing as compared to a representative PID controller.

Craig Rieger

2008-11-01T23:59:59.000Z

51

COMPREHENSIVE DIAGNOSTIC AND IMPROVEMENT TOOLS FOR HVAC-SYSTEM INSTALLATIONS IN LIGHT COMMERCIAL BUILDINGS  

SciTech Connect (OSTI)

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

52

Cold Vacuum Drying facility HVAC system design description  

SciTech Connect (OSTI)

This System Design Description (SDD) addresses the HVAC system for the CVDF. The CVDF HVAC system consists of five subsystems: (1) Administration building HVAC system; (2) Process bay recirculation HVAC system; (3) Process bay local exhaust HVAC and process vent system; (4) Process general supply/exhaust HVAC system; and (5) Reference air system. The HVAC and reference air systems interface with the following systems: the fire protection control system, Monitoring and Control System (MCS), electrical power distribution system (including standby power), compressed air system, Chilled Water (CHW) system, drainage system, and other Cold Vacuum Drying (CVD) control systems not addressed in this SDD.

SINGH, G.

2000-09-22T23:59:59.000Z

53

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...

Thielman, D. E.

1984-01-01T23:59:59.000Z

54

Proper Setup of HVAC System in Conjunction with Sound Building 'Skin' Design for Alleviation of IAQ and Energy Performance Problems  

E-Print Network [OSTI]

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...

Rosenberg, M.

2006-01-01T23:59:59.000Z

55

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

56

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

57

Validation of a Building Simulation Tool Using Field Data for Three Identical Configuration Full-Serve Restaurants Using Different HVAC Systems  

E-Print Network [OSTI]

A new building application for a pre-existing HVAC software tool which calculates the benefits of desiccant-assisted HVAC equipment versus the performance of a standard vapor-compression system is used to model the monitored results, see Yborra...

Brillhart, P. L.; Worek, W. M.

2000-01-01T23:59:59.000Z

58

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

59

Cold Vacuum Drying facility HVAC system design description (SYS 30-1 THRU 30-5)  

SciTech Connect (OSTI)

This document describes the Cold Vacuum Drying Facility (CVDF) heating, ventilation, and air conditioning system (HVAC). The CVDF HVAC system consists of the Administrative building HVAC system, the process bay recirculation HVAC system, the process bay local HVAC and process vent system, the process general supply/exhaust HVAC system, and the Reference air system. These HVAC sub-systems support the CVDF process and provide secondary confinement of contamination and the required filtration of exhaust.

PITKOFF, C.C.

1999-07-02T23:59:59.000Z

60

Building America Webinar: HVAC Right-Sizing Part 1-Calculating...  

Energy Savers [EERE]

HVAC Right-Sizing Part 1-Calculating Loads Building America Webinar: HVAC Right-Sizing Part 1-Calculating Loads During this webinar, Building America Research Team IBACOS...

Note: This page contains sample records for the topic "building hvac systems" 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

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

62

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...

Taylor, M. J.

2000-01-01T23:59:59.000Z

63

Implementation and main results Ecient Management of HVAC Systems  

E-Print Network [OSTI]

water to remove heat from the air in the building. In HVAC system equipped with chillers, the electrical #12;Motivation Implementation and main results HVAC Systems Multiple-chiller systems Heating, Ventilation and Air-Conditioning System Heating, Ventilation and Air Conditioning Systems (HVAC) represents

Schenato, Luca

64

Modeling Building Thermal Response to HVAC Virginia Smith, Tamim Sookoor, and Kamin Whitehouse  

E-Print Network [OSTI]

Modeling Building Thermal Response to HVAC Zoning Virginia Smith, Tamim Sookoor, and Kamin,sookoor,whitehouse}@virginia.edu Abstract. HVAC systems account for 38% of building energy usage. Studies have indicated at least 5 HVAC systems to enable room-level zoning where each room is conditioned in- dividually based on its

Whitehouse, Kamin

65

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]

. For these reasons, ground-coupled heat pump systems are potentially more efficient than conven- tional air-to-air -Source Heat Pump System Models in an Integrated Building and System Simulation Environment. HVAC&R Research 12 and Validation of Ground-Source Heat Pump System Models in an Integrated Building and System Simulation

66

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

E-Print Network [OSTI]

Developing an Integrated Building Design Tool by Couplingdesign energy efficient building systems in this complex setting, integrated

Trcka, Marija

2010-01-01T23:59:59.000Z

67

Sentinel: Occupancy Based HVAC Actuation using Existing WiFi Infrastructure within Commercial Buildings  

E-Print Network [OSTI]

Sentinel: Occupancy Based HVAC Actuation using Existing WiFi Infrastructure within Commercial.agarwal@cs.cmu.edu ABSTRACT Commercial buildings contribute to 19% of the primary energy consumption in the US, with HVAC systems accounting for 39.6% of this usage. To reduce HVAC energy use, prior studies have pro- posed using

Gupta, Rajesh

68

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...

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

2003-01-01T23:59:59.000Z

69

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

E-Print Network [OSTI]

solar-thermal- assisted hvac system. Energy and Buildings, [of a Solar-Assisted HVAC System with Thermal Storage A.of a solar-assisted HVAC system with thermal storage. Energy

Mammoli, Andrea

2014-01-01T23:59:59.000Z

70

DEMONSTRATION OF A HYBRID INTELLIGENT CONTROL STRATEGY FOR CRITICAL BUILDING HVAC SYSTEMS  

SciTech Connect (OSTI)

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

71

Continuous Energy Management of the HVAC&R System in an Office Building System Operation and Energy Consumption for the Eight Years after Building Completion  

E-Print Network [OSTI]

The authors continuously studied the energy consumption of a heating, ventilating, air- conditioning and refrigerating (HVAC&R) system in an office for the operation of the system in terms of its expected performance. A fault in the system control...

Akashi, Y.; Shinozaki, M.; Kusuda, R.; Ito, S.

2006-01-01T23:59:59.000Z

72

Study on Control Performance of HVAC System or Interior Zone and Perimeter Zone in Office Building; Estimation of Optimal PI Tuning in Cooling Operation  

E-Print Network [OSTI]

In office buildings there are generally two HVAC systems installed, one in the perimeter zone (PZ) and one in the interior zone (IZ), and the temperatures of each zone are independently controlled. In the present paper, in order to the solve problem...

Maehara, K.; Sagara, N.

2007-01-01T23:59:59.000Z

73

NREL's Advanced Thermal Conversion Laboratory at the Center for Buildings and Thermal Systems: On the Cutting-Edge of HVAC and CHP Technology (Revised)  

SciTech Connect (OSTI)

This brochure describes how the unique testing capabilities of NREL's Advanced Thermal Conversion Laboratory at the Center For Buildings and Thermal Systems can help industry meet the challenge of developing the next generation of heating, ventilating, and air-conditioning (HVAC) and combined heat and power (CHP) equipment and concepts.

Not Available

2005-09-01T23:59:59.000Z

74

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

SciTech Connect (OSTI)

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

75

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

76

Co-design of Control Algorithm and Embedded Platformfor Building HVAC Systems  

E-Print Network [OSTI]

concerns worldwide. Smart buildings today have sophisticateding building energy consumption by designing smart control

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

2013-01-01T23:59:59.000Z

77

Wireless Infrastructure for Performing Monitoring, Diagnostics, and Control HVAC and Other Energy-Using Systems in Small Commercial Buildings  

SciTech Connect (OSTI)

This project focused on developing a low-cost wireless infrastructure for monitoring, diagnosing, and controlling building systems and equipment. End users receive information via the Internet and need only a web browser and Internet connection. The system used wireless communications for: (1) collecting data centrally on site from many wireless sensors installed on building equipment, (2) transmitting control signals to actuators and (3) transmitting data to an offsite network operations center where it is processed and made available to clients on the Web (see Figure 1). Although this wireless infrastructure can be applied to any building system, it was tested on two representative applications: (1) monitoring and diagnostics for packaged rooftop HVAC units used widely on small commercial buildings and (2) continuous diagnosis and control of scheduling errors such as lights and equipment left on during unoccupied hours. This project developed a generic infrastructure for performance monitoring, diagnostics, and control, applicable to a broad range of building systems and equipment, but targeted specifically to small to medium commercial buildings (an underserved market segment). The proposed solution is based on two wireless technologies. The first, wireless telemetry, is used for cell phones and paging and is reliable and widely available. This risk proved to be easily managed during the project. The second technology is on-site wireless communication for acquiring data from sensors and transmitting control signals. The technology must enable communication with many nodes, overcome physical obstructions, operate in environments with other electrical equipment, support operation with on-board power (instead of line power) for some applications, operate at low transmission power in license-free radio bands, and be low cost. We proposed wireless mesh networking to meet these needs. This technology is relatively new and has been applied only in research and tests. This proved to be a major challenge for the project and was ultimately abandoned in favor of a directly wired solution for collecting sensor data at the building. The primary reason for this was the relatively short ranges at which we were able to effectively place the sensor nodes from the central receiving unit. Several different mesh technologies were attempted with similar results. Two hardware devices were created during the original performance period of the project. The first device, the WEB-MC, is a master control unit that has two radios, a CPU, memory, and serves as the central communications device for the WEB-MC System (Currently called the 'BEST Wireless HVAC Maintenance System' as a tentative commercial product name). The WEB-MC communicates with the local mesh network system via one of its antennas. Communication with the mesh network enables the WEB-MC to configure the network, send/receive data from individual motes, and serves as the primary mechanism for collecting sensor data at remote locations. The second antenna enables the WEB-MC to connect to a cellular network ('Long-Haul Communications') to transfer data to and from the NorthWrite Network Operations Center (NOC). A third 'all-in-one' hardware solution was created after the project was extended (Phase 2) and additional resources were provided. The project team leveraged a project funded by the State of Washington to develop a hardware solution that integrated the functionality of the original two devices. The primary reason for this approach was to eliminate the mesh network technical difficulties that severely limited the functionality of the original hardware approach. There were five separate software developments required to deliver the functionality needed for this project. These include the Data Server (or Network Operations Center), Web Application, Diagnostic Software, WEB-MC Embedded Software, Mote Embedded Software. Each of these developments was necessarily dependent on the others. This resulted in a challenging management task - requiring high bandwidth communications among

Patrick O'Neill

2009-06-30T23:59:59.000Z

78

Phase-change wallboard and mechanical night ventilation in commercial buildings: Potential for HVAC system downsizing  

SciTech Connect (OSTI)

As thermal storage media, phase-change materials (PCMs) such as paraffin, eutectic salts, etc. offer an order-of-magnitude increase in thermal storage capacity, and their discharge is almost isothermal. By embedding PCMs in dypsum board, plaster, or other wall-covering materials, the building structure acquires latent storage properties. Structural elements containing PCMs can store large amounts of energy while maintaining the indoor temperature within a relatively narrow range. As heat storage takes place inside the building where the loads occur, rather than at a central exterior location, the internal loads are removed without the need for additional transport energy. Distributed latent storage can thus be used to reduce the peak power demand of a building, downsize the cooling system, and/or switch to low-energy cooling sources. The authors used RADCOOL, a thermal building simulation program based on the finite difference approach, to numerically evaluate the thermal performance of PCM wallboard coupled with mechanical night ventilation in office buildings offers the opportunity for system downsizing in climates where the outside air temperature drops below 18 C at night. In climates where the outside air temperature remains above 19 C at night, the use of PCM wallboard should be coupled with discharge mechanisms other than mechanical night ventilation with outside air.

Stetiu, C.; Feustel, H.E.

1998-07-01T23:59:59.000Z

79

Thinking small leads to efficient HVAC system  

SciTech Connect (OSTI)

The energy efficient design of a Park Avenue office tower is discussed. The 27 story, 260,000 sq. ft. building features an energy efficient HVAC system, including separate mechanical rooms on each floor and a pre-cooling coil utilizing water from a cooling tower. The building was designed so that condenser water from the cooling tower is run through a pre-cooling coil on each floor in order to provide free cooling before the water goes through the condenser coil. The building also uses a Honeywell energy management system to control the start and stop of various mechanical equipment according to outside conditions and building loads. (MJF)

Not Available

1981-06-01T23:59:59.000Z

80

Analysis of the Design of an HVAC System in a Public Building  

E-Print Network [OSTI]

to west, 2.5 meters high, 1560 m2 in area, fire resistant rating, with four exists. It is planed the reconstructed as a public building with the function of amusement, recreation and performance, so the air conditioning system is necessary...

Wei, P.; Shao, Z.; Chen, H.

2006-01-01T23:59:59.000Z

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


81

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

82

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

83

Reliability and Functional Availability of HVAC Systems  

E-Print Network [OSTI]

RELIABILITY AND FUNCTIONAL AVAILABILITY OF HVAC SYSTEMS Sonny Myrefelt Dep. of Build. Serv. Eng., KTH, 10044 Stockholm, Sweden, and SKANSKA Sydost, V?xj?, Sweden Summary This paper presents a model to calculate the reliability... system, therefore, there must be sufficient documentation of design airflow rates. The compulsory ventilation checks performed in Sweden have focused on the importance of maintaining the design air flow rates. More about this activity can be seen...

Myrefelt, S.

2004-01-01T23:59:59.000Z

84

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

E-Print Network [OSTI]

at Oklahoma State University (www.hvac.okstate.edu) The correct citation for the paper is: Rees, S.J., J cooling loads is of critical concern to designers of HVAC systems. The work reported here has been carried of the HVAC industry worldwide would be improved if common methods of performing key design calculations were

Ghajar, Afshin J.

85

Fuzzy Rule Reduction and Tuning of Fuzzy Logic Controllers for a HVAC System  

E-Print Network [OSTI]

Fuzzy Rule Reduction and Tuning of Fuzzy Logic Controllers for a HVAC System R. Alcal´a, J. Alcal, Ventilating and Air Conditioning (HVAC) Systems are equip- ments usually implemented for maintaining satisfactory comfort conditions in build- ings. The design of Fuzzy Logic Controllers (FLCs) for HVAC Systems

Granada, Universidad de

86

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

87

Total and Peak Energy Consumption Minimization of Building HVAC Systems Using Model Predictive Control  

E-Print Network [OSTI]

combination of the total energy consumption and the peakalso reduces the total energy consumption of the occupancyTotal and Peak Energy Consumption Minimization of Building

Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

2012-01-01T23:59:59.000Z

88

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.

89

Measuring Advances in HVAC Distribution System Design  

E-Print Network [OSTI]

Advances in HV AC Distribution System Design Ellen FranconiAdvances in HVAC Distribution System Design Ellen Franconisavings result from distribution system design improvements,

Franconi, E.

2011-01-01T23:59:59.000Z

90

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...

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

2006-01-01T23:59:59.000Z

91

Personalized HVAC control system  

E-Print Network [OSTI]

We present a novel method of building comfort control, focused around the occupant. Custom sensing, communication, and actuation hardware were developed to locate users in a building, and measure various parameters directly ...

Feldmeier, Mark Christopher

92

HVAC-systems.  

E-Print Network [OSTI]

?? It is of interest for companies to keep the annual operating cost of their buildings as low as possible. A substantial share of the… (more)

Alvsvåg, Øyvind

2011-01-01T23:59:59.000Z

93

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

E-Print Network [OSTI]

such a system is determining the required heat flux. Current guidance in the ASHRAE HVAC Applications Handbook of the hydronic snow melting system. Current guidance in the ASHRAE HVAC Applications Handbook (1) for required-of-snowfall-hours-not-exceeded of 75%, 90%, 95%, 98%, 99% and 100%. This approach is limited by the fact that real systems are almost

94

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… (more)

Scotton, Francesco

2012-01-01T23:59:59.000Z

95

INTEGRATED ENERGY SYSTEMS: PRODUCTIVITY & BUILDING SCIENCE  

E-Print Network [OSTI]

Integrated Design of Commercial Building Ceiling Systems Integrated Design of Residential Ducting & Air FlowINTEGRATED ENERGY SYSTEMS: PRODUCTIVITY & BUILDING SCIENCE Productivity and Interior Environments Integrated Design of Large Commercial HVAC Systems Integrated Design of Small Commercial HVAC Systems

96

Cooperative Control of Air Flow for HVAC Systems  

E-Print Network [OSTI]

in a variable air volume HVAC system,” Energy, vol. 21, no.Global optimization for overall HVAC systems-part I problemGlobal optimization for overall HVAC systems-part II problem

Shuai, Liu; Lihua, Xie

2013-01-01T23:59:59.000Z

97

Building America Expert Meeting: Transitioning Traditional HVAC...  

Energy Savers [EERE]

validate the general business models for traditional HVAC companies and whole house energy upgrade companies Review preliminary findings on the differences between the structure...

98

Remote Fault Detection of Building HVAC System Using a Global Optimization Program  

E-Print Network [OSTI]

fault detection method using the global optimization program Solver® (Frontline Systems, 2000) coupled to a simplified simulation program, which is a coding of the ASHRAE 'Simplified Energy Analysis Procedure' (Knebel, 1983). This approach uses...

Lee, S. U.; Claridge, D. E.

2004-01-01T23:59:59.000Z

99

A PDI for your HVAC System  

Broader source: Energy.gov [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-deliverying?"

100

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

E-Print Network [OSTI]

of Commercial Building HVAC Systems, Atlanta: American2012. Modeling and simulation of HVAC faults in EnergyPlus,Modeling and Simulation of HVAC Faulty Operations and

Wang, Liping

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "building hvac systems" 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

Improving efficiency of a vehicle HVAC system with comfort modeling...  

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

efficiency of a vehicle HVAC system with comfort modeling, zonal design, and thermoelectric devices Improving efficiency of a vehicle HVAC system with comfort modeling, zonal...

102

Development of a High-Efficiency Zonal Thermoelectric HVAC System...  

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

a High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications Development of a High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications...

103

Energy Efficient HVAC System for Distributed Cooling/Heating...  

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

Efficient HVAC System for Distributed CoolingHeating with Thermoelectric Devices Energy Efficient HVAC System for Distributed CoolingHeating with Thermoelectric Devices 2012 DOE...

104

Total Quality Commissioning for HVAC Systems to Assure High Performance Throughout the Whole Life Cycle  

E-Print Network [OSTI]

TOTAL QUALITY COMMISSIONING FOR HVAC SYSTEMS TO ASSURE HIGH PERFORMANCE THROUGHOUT THE WHOLE LIFE CYCLE By: Grahame E. Maisey, P.E., and Beverly Milestone, LEED AP Building Services Consultants INTRODUCTION Current HVAC systems... are not coming close to approaching life cycle performance expectations for energy, operation and maintenance, occupant comfort and productivity and longevity. HVAC systems in buildings claiming to be sustainable, with integrated, energy conscious design...

Maisey, G.; Milestone, B.

2005-01-01T23:59:59.000Z

105

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...

Bible, Mitchell

2011-10-21T23:59:59.000Z

106

Review of Residential Low-Load HVAC Systems  

SciTech Connect (OSTI)

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

107

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

108

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

109

Performance Validation and Energy Analysis of HVAC Systems using Simulation  

E-Print Network [OSTI]

that energy savings of between 15% and 40% could be made in commercial buildings by closer monitoring and supervision of energy-usage and related data. An earlier study by Kao and Pierce (1983) showed that sensor1 Performance Validation and Energy Analysis of HVAC Systems using Simulation Tim Salsbury and Rick

Diamond, Richard

110

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

111

Building America Whole-House Solutions for New Homes: HVAC Design...  

Energy Savers [EERE]

HVAC Design Strategy for a Hot-Humid Production Builder Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder In this...

112

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...

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

2004-01-01T23:59:59.000Z

113

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

114

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...

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

2006-01-01T23:59:59.000Z

115

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

116

Implementation of a Scenario-based MPC for HVAC Systems  

E-Print Network [OSTI]

Implementation of a Scenario-based MPC for HVAC Systems: an Experimental Case Study Alessandra, Ventilation and Air Conditioning (HVAC) systems play a fundamental role in maintaining acceptable thermal energy savings potential. Developing effective MPC-based control strategies for HVAC systems

Johansson, Karl Henrik

117

Using Energy Management Control Systems for HVAC Operational Diagnostics  

E-Print Network [OSTI]

USING ENERGY MANAGEMENT CONTROL SYSTEMS FOR HVAC OPERATIONAL DIAGNOSTICS Karl Stum, P.E. Portland Energy Conservation, Inc. 92 1 SW Washington, Suite 3 12 Portland, OR 97205 503-248-4636 Fax 503-295-0820 ABSTRACT The power and flexibility... Proceedings, June 1997. Meyers, S.; E. Mills; A. Chen; L. Demsetz "Building Data Visualization for Diagnostics," ASHRAE Journal, June 1996. PECl (Portland Energy Conservation, Inc.). Energy Management C0ntrof Systems-A Practical Guiak, 1997. Sparks, R...

Stum, K.

1998-01-01T23:59:59.000Z

118

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...

Hou, D.; Jones, J. W.; Hunn, B. D.; Banks, J. A.

1996-01-01T23:59:59.000Z

119

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

SciTech Connect (OSTI)

This case study focusing on a residence in northern California was undertaken as a demonstration of the potential of a systems approach to HVAC retrofits. The systems approach means that other retrofits that can affect the HVAC system are also considered. For example, added building envelope insulation reduces building loads so that smaller capacity HVAC system can be used. Secondly, we wanted to examine the practical issues and interactions with contractors and code officials required to accomplish the systems approach because it represents a departure from current practice. We identified problems in the processes of communication and installation of the retrofit that led to compromises in the final energy efficiency of the HVAC system. These issues must be overcome in order for HVAC retrofits to deliver the increased performance that they promise. The experience gained in this case study was used to optimize best practices guidelines for contractors (Walker 2003) that include building diagnostics and checklists as tools to assist in ensuring the energy efficiency of ''house as a system'' HVAC retrofits. The best practices guidelines proved to be an excellent tool for evaluating the eight existing homes in this study, and we received positive feedback from many potential users who reviewed and used them. In addition, we were able to substantially improve the energy efficiency of the retrofitted case study house by adding envelope insulation, a more efficient furnace and air conditioner, an economizer and by reducing duct leakage.

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

2003-09-01T23:59:59.000Z

120

Cooperative Control of Air Flow for HVAC Systems Shuai Liu1,2, Yushen Long1, Lihua Xie1 and Alexandre M. Bayen3  

E-Print Network [OSTI]

Cooperative Control of Air Flow for HVAC Systems Shuai Liu1,2, Yushen Long1, Lihua Xie1 for building heating, ven- tilation and air-conditioning (HVAC) systems. The strategy consists in two level and the HVAC system parameters. I. INTRODUCTION In recent years, energy saving and environment protection have

Note: This page contains sample records for the topic "building hvac systems" 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

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

122

Analysis of Innovative HVAC System Technologies and Their Application for Office Buildings in Hot and Humid Climates  

E-Print Network [OSTI]

The commercial buildings sector in the United States used 18 percent (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...

Tanskyi, Oleksandr

2012-02-14T23:59:59.000Z

123

Pitfalls in Building and HVAC Audits  

E-Print Network [OSTI]

The purpose of an energy audit is to identify and analyze areas of energy consumption and to propose methods of conservation. In the process of completing an audit the following areas of consumption should be considered: 0 Building Envelope 0 Air...

Gidwani, B. N.

1985-01-01T23:59:59.000Z

124

Thermal Storage Options for HVAC Systems  

E-Print Network [OSTI]

THERMAL STORAGE OPTIONS FOR HVAC SYSTEMS B. N. Gidwani, P.E. Roy F. Weston, Inc. West Chester, Pennsylvania ABSTRACT With the ever-increasing cost of electricity and the high demand charges levied by utility compa nies, thermal storage... for cooling is rapidly becom ing a widely recognized method to lower cooling costs. There are three maior types of thermal stor age systems: ? Ice Storage: This utilizes the latent heat of fusion of ice for thermal storage. During off Deak periods...

Weston, R. F.; Gidwani, B. N.

125

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 the effectiveness of using HVAC filters as an indoor sampling technique. #12;Proceedings of Healthy Buildings 2009

Siegel, Jeffrey

126

HVAC's Variable Refrigerant Flow (VRF) Technology  

E-Print Network [OSTI]

1 Comfort by Design Steve Jones Commercial Sales Manager for Mitsubishi Southwest Business Unit HVAC?s Variable Refrigerant Flow (VRF) Technology HVAC Industry Overview HVAC Market Dollar Volume $18 Billion Source:;NABH Research....2M Systems Ductless is a small percent of the U.S. HVAC market but current building and energy usage trends indicate a large growth opportunity Determining the Proper Application Worldwide Usage-Opportunity Window Unitary Chillers...

Jones, S.

2012-01-01T23:59:59.000Z

127

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

128

Coordinated Control of HVAC Systems  

E-Print Network [OSTI]

This paper describes the development of new control logic for starting and stopping energy-intensive equipment in buildings such as staged air-conditioning units. The concept is to use pulse-width modulation (PWM) instead of level-crossing logic. A...

Federspiel, C.; Lanning, S. D.; Li, H.; Auslander, D. M.

2001-01-01T23:59:59.000Z

129

Improving the Efficiency of Light-Duty Vehicle HVAC Systems using...  

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

Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric Devices and Comfort Modeling Improving the Efficiency of Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric...

130

Field Evaluation of Desiccant-Integrated HVAC Systems: A Review of Case Studies in Multiple Commercial/Institutional Building Types  

E-Print Network [OSTI]

serves the guestroom corridors, was retrofitted with a 6000 scfm desiccant air handler that pre-treated outside air. The property's South Wing, which is nearly identical to the North Wing, was used as the comparison. While the WAC system in the South... over the course of the year than the North Wing. This equates to emptying two one-gallon buckets of water into each of the South Wing's 75 guestrooms each and every day of the Year. A second field-monitoring test was conducted from June 1992...

Yborra, S. C.

1998-01-01T23:59:59.000Z

131

Energy efficient HVAC system features thermal storage and heat recovery  

SciTech Connect (OSTI)

This article describes a HVAC system designed to efficiently condition a medical center. The topics of the article include energy efficient design of the HVAC system, incentive rebate program by the local utility, indoor air quality, innovative design features, operations and maintenance, payback and life cycle cost analysis results, and energy consumption.

Bard, E.M. (Bard, Rao + Athanas Consulting Engineering Inc., Boston, MA (United States))

1994-03-01T23:59:59.000Z

132

SURFACE INDUSTRIAL HVAC SYSTEM DESCRIPTION DOCUMENT  

SciTech Connect (OSTI)

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

133

Electric, Gas, and Electric/Gas Energy Options for Cold-Air HVAC Systems  

E-Print Network [OSTI]

and incorporated into HVAC design for medium-to-large buildings, it is possible to structure system arrangements that reduce energy operating costs very significantly compared to conventional all-air VAV systems and also to all-air VAV ice thermal storage systems...

Meckler, G.

1989-01-01T23:59:59.000Z

134

Indoor humidity and human health: part II--buildings and their systems  

E-Print Network [OSTI]

Northwest homes. Healthy Buildings: Proceeding of IAQ ’91,inside an HVAC system compatible with a healthy building?Healthy Buildings: Proceeding of IAQ ’91, September,

Arens, Edward A; Baughman, A.

1996-01-01T23:59:59.000Z

135

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

136

Monitoring-based HVAC Commissioning of an Existing Office Building for Energy Efficiciency  

E-Print Network [OSTI]

EnergyPlus, Trend Data Introduction The performance of HVACthe commissioning of HVAC systems. Analyzing trend data is aHVAC systems, such as improper operations of air-side economizers, simultaneous heating and cooling, and ineffective optimal start, were identified through trend

Wang, Liping

2014-01-01T23:59:59.000Z

137

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

E-Print Network [OSTI]

OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy Varick L. Erickson, Miguel Á & control General Terms Algorithms, Machine Learning, Measurement Keywords Occupancy, HVAC, Ventilation for heating, ventilation, and air-conditioning (HVAC) systems[2]. Studies suggest that 15% to 25% of HVAC

Carreira-Perpiñán, Miguel Á.

138

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

139

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

E-Print Network [OSTI]

heating, radiant floor systems, evaporative cooling, gas cooling, ground-source heat pumps, and wood space requirements for additions to existing dwellings and for alterations to existing heating and cooling systems packages. Package C permits electric resistance space heating, but requires significantly greater

140

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]

This paper has been downloaded from the Building and Environmental Thermal Systems Research Group that is typically only the case for envelope-dominated buildings in a given location. · Reasonably constant ground thermal properties between locations for which the rule-of-thumb would be applied. The main example

Note: This page contains sample records for the topic "building hvac systems" 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

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

E-Print Network [OSTI]

to reductions in electrical energy usage, and allow more effective demand-side management. However, comparedThis paper has been downloaded from the Building and Environmental Thermal Systems Research Group

Ghajar, Afshin J.

142

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

SciTech Connect (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

143

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]

function (TF) method was the method of choice for cooling load calculation. There- fore, information; Rundquist 1990; Treado and Bean 1992). Recently, ASHRAE developed two new cooling load calculation: Chantrasrisalai, C., and D.E. Fisher. 2007. Lighting heat gain parameters: Experimental results. HVAC&R Research

144

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

E-Print Network [OSTI]

is presented. INTRODUCTION Although originating in the residential building sector, ground-source heat pump conductivity is a signif- icant challenge facing designers of ground-source heat pump (GSHP heat pump systems" may include a range of system configurations, closed-loop systems, where the ground

145

Measuring Advances in HVAC Distribution System Design  

SciTech Connect (OSTI)

Substantial commercial building energy savings have been achieved by improving the performance of the HV AC 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, E.

1998-05-01T23:59:59.000Z

146

COMPARATIVE STUDY AMONG HYBRID GROUND SOURCE HEAT PUMP SYSTEM, COMPLETE GROUND SOURCE HEAT PUMP AND CONVENTIONAL HVAC SYSTEM  

SciTech Connect (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

147

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]

-source heat pump (GSHP) systems have been gaining increasing popularity in commercial and residential in construction to a domestic water well). Water is circulated from the well through the heat pump in an open, water is recirculated between the well and the building (heat pump). Deep bores are drilled in hard rock

148

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...

Swanson, K.

149

NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes.  

E-Print Network [OSTI]

NREL research determines optimal HVAC system design for proper air mixing and thermal comfort in homes. As U.S. homes become more energy efficient, heating, ventilation, and cooling (HVAC) systems

150

Proceedings of Healthy Buildings 2009 Paper 474 Impacts of HVAC Filtration on Air-Conditioner Energy Consumption in  

E-Print Network [OSTI]

Proceedings of Healthy Buildings 2009 Paper 474 Impacts of HVAC Filtration on Air efficiency filters (Points A, B, and C, respectively). #12;Proceedings of Healthy Buildings 2009 Paper 474

Siegel, Jeffrey

151

HVAC systems in the current stock of U. S. K-12 schools. Final report, May 91-Mar 92  

SciTech Connect (OSTI)

The report summarizes information on heating, ventilating, and air-conditioning (HVAC) systems commonly found in U.S. school buildings and the effect that operating these systems has on indoor radon levels. The report describes the ability of various HVAC systems to pressurize and ventilate classroom spaces, how they operate, and how they are controlled. Some information is given to compare systems from the standpoint of energy use, cost, and their ability to maintain stable levels of static pressure in classrooms and/or to adequately ventilate the spaces. There do not appear to be any well defined trends in types of HVAC systems involved in current school building construction and modification. Systems looked at include those using reheat and/or mixing, unit ventilators (UVs), and two-fan, dual-duct variable air volume (VAV) systems.

Parker, J.D.

1992-07-01T23:59:59.000Z

152

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

153

MAPPING HVAC SYSTEMS FOR SIMULATION IN Author(s), Mangesh Basarkar, James O'Donnell, Philip  

E-Print Network [OSTI]

LBNL-5565E MAPPING HVAC SYSTEMS FOR SIMULATION IN ENERGYPLUS Author(s), Mangesh Basarkar, James O Government or any agency thereof or The Regents of the University of California. #12;MAPPING HVAC SYSTEMS tools to be accessible to designers, tool interfaces should present a conventional view of HVAC systems

154

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

Boyer, Edmond

155

EVALUATION OF EMERGING DIAGNOSTIC TOOLS FOR COMMERCIAL HVAC SYSTEMS Hannah Friedman Mary Ann Piette  

E-Print Network [OSTI]

EVALUATION OF EMERGING DIAGNOSTIC TOOLS FOR COMMERCIAL HVAC SYSTEMS Hannah Friedman Mary Ann Piette for commercial HVAC systems. We present a brief description of the diagnostic tools, and then focus on evaluating, ventilating, and air-conditioning (HVAC) systems (Gregerson, 1997, Claridge et al., 2000). If these energy

156

Multicriteria Genetic Tuning for the Optimization and Control of HVAC Systems  

E-Print Network [OSTI]

Multicriteria Genetic Tuning for the Optimization and Control of HVAC Systems Rafael Alcala1, Jose of genetic algorithms for the optimization and control of Heating, Ventilating and Air Conditioning (HVAC of these systems. An optimum operation of the HVAC systems is a necessary condition for mini- mizing energy

Casillas Barranquero, Jorge

157

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

158

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

159

RoomZoner: Occupancy-based Room-Level Zoning of a Centralized HVAC System  

E-Print Network [OSTI]

RoomZoner: Occupancy-based Room-Level Zoning of a Centralized HVAC System Tamim Sookoor & Kamin. In this paper we present a CPS that enables a centralized Heating, Ventila- tion, and Air Conditioning (HVAC application due to residential HVAC systems ac- counting for over 15% of all U.S. energy usage, making it one

Whitehouse, Kamin

160

Wireless Demand Response Controls for HVAC Systems  

SciTech Connect (OSTI)

The objectives of this scoping study were to develop and test control software and wireless hardware that could enable closed-loop, zone-temperature-based demand response in buildings that have either pneumatic controls or legacy digital controls that cannot be used as part of a demand response automation system. We designed a SOAP client that is compatible with the Demand Response Automation Server (DRAS) being used by the IOUs in California for their CPP program, design the DR control software, investigated the use of cellular routers for connecting to the DRAS, and tested the wireless DR system with an emulator running a calibrated model of a working building. The results show that the wireless DR system can shed approximately 1.5 Watts per design CFM on the design day in a hot, inland climate in California while keeping temperatures within the limits of ASHRAE Standard 55: Thermal Environmental Conditions for Human Occupancy.

Federspiel, Clifford

2009-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "building hvac systems" 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

Wireless Demand Response Controls for HVAC Systems  

E-Print Network [OSTI]

temperature-based demand response in buildings that havedemand response advantages of global zone temperature setup in buildings

Federspiel, Clifford

2010-01-01T23:59:59.000Z

162

Randomized Model Predictive Control for HVAC Systems Alessandra Parisio, Damiano Varagnolo, Daniel Risberg,  

E-Print Network [OSTI]

Randomized Model Predictive Control for HVAC Systems Alessandra Parisio, Damiano Varagnolo, Daniel Conditioning (HVAC) sys- tems play a fundamental role in maintaining acceptable ther- mal comfort and Indoor. A possible solu- tion is to develop effective control strategies for HVAC sys- tems, but this is complicated

Johansson, Karl Henrik

163

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

164

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

E-Print Network [OSTI]

Plus is a new whole-building energy simulation program being developed for the United States Department is modular in structure, and uses the heat balance technique to simulate building thermal loads. The Energy to calculate the airflows, which are used by EnergyPlus in the subsequent heat balance simulation. The paper

165

MAPPING HVAC SYSTEMS FOR SIMULATION IN ENERGYPLUS  

E-Print Network [OSTI]

apps1.eere.energy.gov/buildings/energyplus/. Modelica, 2012.Modelica andthe Modelica Association — Modelica Association [WWW

Basarkar, Mangesh

2013-01-01T23:59:59.000Z

166

Measuring rates of outdoor airflow into HVAC systems  

SciTech Connect (OSTI)

During the last few years, new technologies have been introduced for measuring the flow rates of outside air into HVAC systems. This document describes one particular technology for measuring these airflows, a system and a related protocol developed to evaluate this and similar measurement technologies under conditions without wind, and the results of our evaluations. We conclude that the measurement technology evaluated can provide a reasonably accurate measurement of OA flow rate over a broad range of flow, without significantly increasing airflow resistance.

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

2002-10-01T23:59:59.000Z

167

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]

for the heat gain due to lights, both of ASHRAE's new cooling load calculation procedures require contributor to the space heat gain and the space cooling load in many commercial buildings. To account's new cooling load calcu- lation procedures (Pedersen et al. 1998) use a simple lighting heat gain model

168

Strategy Guideline: HVAC Equipment Sizing  

SciTech Connect (OSTI)

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

169

Design and tuning of robust PID controller for HVAC systems  

SciTech Connect (OSTI)

This paper concerns the development of a new design and tuning method for use with robust proportional-plus-integral-plus-derivative (PID) controllers that are commonly used in the heating, ventilating, and air-conditioning (HVAC) fields. The robust PID controller is designed for temperature control of a single-zone environmental space. Although the dynamics of environmental space are described by higher-order transfer functions, most HVAC plants are approximated by first-order lag plus deadtime systems. Its control performance is examined for this commonly approximated controlled plant. Since most HVAC plants are complex with nonlinearity, distributed parameters, and multivariables, a single set of PID gains does not necessarily yield a satisfactory control performance. For this reason, the PID controller must be designed as a robust control system considering model uncertainty caused by changes in characteristics of the plant. The PID gains obtained by solving a two-disk type of mixed sensitivity problem can be modified by contrast to those tuned by the traditional Ziegler-Nichols rule. The results, which are surprisingly simple, are given as linear functions of ratio of deadtime to time constant for robustness. The numerical simulation and the experiments on a commercial-size test plant for air conditioning suggest that the robust PID controller proposed in this paper is effective enough for practical applications.

Kasahara, Masato; Matsuba, Tadahiko; Kuzuu, Yoshiaki; Yamazaki, Takanori; Hashimoto, Yukihiro; Kamimura, Kazuyuki; Kurosu, Shigeru

1999-07-01T23:59:59.000Z

170

Residential commissioning to assess envelope and HVAC system performance  

SciTech Connect (OSTI)

Houses do not perform optimally or even as many codes and forecasts predict. For example, Walker et al. (1998a) found large variations in thermal distribution system efficiency, as much as a factor of two even between side-by-side houses with the same system design and installation crew. This and other studies (e.g., Jump et al. 1996) indicate that duct leakage testing and sealing can readily achieve a 25 to 30% reduction in installed cooling capacity and energy consumption. As another example, consider that the building industry has recognized for at least 20 years the substantial impact that envelope airtightness has on thermal loads, energy use, comfort, and indoor air quality. However, Walker et al. (1998a) found 50% variances in airtightness for houses with the same design and construction crews, within the same subdivision. A substantial reason for these problems is that few houses are now built or retrofitted using formal design procedures, most are field assembled from a large number of components, and there is no consistent process to identify problems or to correct them. Solving the problems requires field performance evaluations of houses using appropriate and agreed upon procedures. Many procedural elements already exist in a fragmented environment; some are ready now to be integrated into a new process called residential commissioning (Wray et al. 2000). For example, California's Title 24 energy code already provides some commissioning elements for evaluating the energy performance of new houses. A house consists of components and systems that need to be commissioned, such as building envelopes, air distribution systems, cooling equipment, heat pumps, combustion appliances, controls, and other electrical appliances. For simplicity and practicality, these components and systems are usually evaluated individually, but we need to bear in mind that many of them interact. Therefore, commissioning must not only identify the energy and non-energy benefits associated with improving the performance of a component, it must also indicate how individual components interact in the complete building system. For this paper, we limit our discussion to diagnostics in areas of particular concern with significant interactions: envelope and HVAC systems. These areas include insulation quality, windows, airtightness, envelope moisture, fan and duct system airflows, duct leakage, cooling equipment charge, and combustion appliance backdrafting with spillage. The remainder of this paper first describes what residential commissioning is, its characteristic elements, and how one might structure its process. Subsequent sections describe a consolidated set of practical diagnostics that the building industry can use now. Where possible, we also discuss the accuracy and usability of these diagnostics, based on recent laboratory work and field studies. We conclude by describing areas in need of research and development, such as practical field diagnostics for envelope thermal conductance and combustion safety. There are several potential benefits for builders, consumers, code officials, utilities, and energy planners of commissioning houses using a consistent set of validated methods. Builders and/or commissioning agents will be able to optimize system performance and reduce consumer costs associated with building energy use. Consumers will be more likely to get what they paid for and builders can show they delivered what was expected. Code officials will be better able to enforce existing and future energy codes. As energy reduction measures are more effectively incorporated into the housing stock, utilities and energy planners will benefit through greater confidence in predicting demand and greater assurance that demand reductions will actually occur. Performance improvements will also reduce emissions from electricity generating plants and residential combustion equipment. Research to characterize these benefits is underway.

Wray, Craig P.; Sherman, Max H.

2001-08-31T23:59:59.000Z

171

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

E-Print Network [OSTI]

. INTRODUCTION Ground-source heat pump systems have become increas- ingly popular for both residential-Loop Ground-Source Heat Pump Systems. ASHRAE Transactions. 106(1): 380-393. Reprinted by permission from with conventional systems. In closed-loop ground- source heat pump systems, heat rejection/extraction is accom

172

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

E-Print Network [OSTI]

efficient than conventional air-to-air systems. In practice, ground-source heat pump systems have also.J. Rees, and C. Yavuzturk. 2000. Recent Developments in Ground Source Heat Pump System Design, Modelling A28, p.34. #12;Page 1 of 1 Recent Developments in Ground Source Heat Pump System Design, Modeling

173

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

E-Print Network [OSTI]

-term temperature response of the ground. Energy consumption for this system is compared to that of a conventional performance and long-term temperature response of the ground. Energy consumption for this system is compared system with condensing gas boilers and vapor compression refrigeration. Introduction Ground source heat

174

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

E-Print Network [OSTI]

source heat pump systems, and design of hybrid ground source systems. This paper describes-485). © 1999 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. #12;A Short Time-coupled heat pump systems is important for design of ground loop heat exchangers, energy analysis of ground

Ghajar, Afshin J.

175

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

E-Print Network [OSTI]

International Heat Pumps in Cold Climates Conference, Aylmer, Québec. August 17-18, 2000. #12;GLHEPRO ­ A DESIGN University Stillwater, OK, U.S.A. KEY WORDS Ground source heat pump systems, ground loop heat exchangers size in order to meet user-specified minimum or maximum heat pump entering fluid temperatures

176

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

E-Print Network [OSTI]

include improved performance of heat pumps with water as the working fluid (instead of air) and lower.D. Smith, J.D. Spitler. 2002. Advances in Ground Source Heat Pump Systems - An International Overview. Proceedings of the Seventh International Energy Agency Heat Pump Conference. 1:313-324. Beijing. May 19

177

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]

Elementalheatexchangermodelsareincreasinglyusedin heat pump design calculations because of their ability to accu. INTRODUCTION The heat exchanger model is an important aspect of the overall design and simulation of the air-to-air heat pump. There are many convergence criteria in the system design and simulation program

178

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

E-Print Network [OSTI]

environmental systems. The accuracy ofthe thermal load calculation procedure is, therefore, ofconcern to heating oftwo newproceduresfor design cooling load calculations: the heat balance method (HBM) andradiant time (Spitler et al. 1997) is a simplified, heat balance-based design cooling load method intended

179

Thermal Modeling for a HVAC Controlled Real-life Yong Fu1, Mo Sha1, Chengjie Wu1, Andrew Kutta1, Anna Leavey2, Chenyang Lu1,  

E-Print Network [OSTI]

Thermal Modeling for a HVAC Controlled Real-life Auditorium Yong Fu1, Mo Sha1, Chengjie Wu1, Andrew consumption in build- ings is heating, ventilation, and air conditioning (HVAC). For an HVAC system to provide, especially in large open spaces. To optimize HVAC control, it is important to establish accurate dynamic

Lu, Chenyang

180

A LIBRARY OF HVAC COMPONENT MODELS FOR USE IN AUTOMATED1 DIAGNOSTICS2  

E-Print Network [OSTI]

A LIBRARY OF HVAC COMPONENT MODELS FOR USE IN AUTOMATED1 DIAGNOSTICS2 3 4 Peng Xu, Philip Haves HVAC system (air handling units and air distribution systems). The models are used to predict of automatic documentation methods in the library. INTRODUCTION The increasing complexity of building HVAC

Note: This page contains sample records for the topic "building hvac systems" 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

HVAC Cabinet Air Leakage Test Method - Building America Top Innovation...  

Energy Savers [EERE]

their air sealing practices to reduce the amount of air leaking at ducts and duct boots, testing showed that distribution systems still leaked at air handlers and furnace...

182

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

183

Design of Control Systems for HVAC Applications  

E-Print Network [OSTI]

to heating, ventilating, and air conditioning systems has become an integral part of energy management. The first phase of the program will address the problem of selection of a type of system that will be cost and energy efficient, with a minimum...

Smith, A. L.

1984-01-01T23:59:59.000Z

184

A Quasi-Dynamic HVAC and Building Simulation Methodology  

E-Print Network [OSTI]

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...

Davis, Clinton Paul

2012-07-16T23:59:59.000Z

185

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

186

Feasibility of Retrofitting Centralized HVAC Systems for Room-Level Zoning Tamim Sookoor, Brian Holben, Kamin Whitehouse  

E-Print Network [OSTI]

Feasibility of Retrofitting Centralized HVAC Systems for Room-Level Zoning Tamim Sookoor, Brian {sookoor,bnh4k,whitehouse}@cs.virginia.edu Abstract--Heating, ventilation, and cooling (HVAC) accounts's largest energy consumers. Many attempts have been made to optimize the control of HVAC systems

Whitehouse, Kamin

187

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.

188

Minimization of energy consumption in HVAC systems with data-driven models and an interior-point method  

E-Print Network [OSTI]

Minimization of energy consumption in HVAC systems with data-driven models and an interior online 13 June 2014 Keywords: HVAC Interior-point method Internal heat gain Multilayer perceptron-driven approach is applied to minimize energy consumption of a heating, ventilating, and air conditioning (HVAC

Kusiak, Andrew

189

Systems and methods for controlling energy use in a building management system using energy budgets  

DOE Patents [OSTI]

Systems and methods for limiting power consumption by a heating, ventilation, and air conditioning (HVAC) subsystem of a building are shown and described. A feedback controller is used to generate a manipulated variable based on an energy use setpoint and a measured energy use. The manipulated variable may be used for adjusting the operation of an HVAC device.

Wenzel, Michael J; Drees, Kirk H

2014-09-23T23:59:59.000Z

190

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

SciTech Connect (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

191

PV modules, with a life measured in decades, will typically be in place longer than the outdoor unit of a HVAC system.  

E-Print Network [OSTI]

unit of a HVAC system. When the performance of an HVAC system deteriorates, it is usually inspected remain installed on the roof even after the system is no longer being used. Although HVAC units have only jumpers and screws effectively bond all parts of the listed device together. HVAC components are typically

Johnson, Eric E.

192

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...

Muller, T.; Rehault, N.; Rist, T.

2013-01-01T23:59:59.000Z

193

Joint-Frequency Bins versus Conventional Bin Weather Data in Analysis of HVAC System Operation  

E-Print Network [OSTI]

this study the use of joint-frequency bins has relative added value to the analysis of HVAC system operation depending on whether the system is dominated by ventilation loads....

Jones, A.; Baltazar, J. C.; Claridge, D. E.

194

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

195

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

E-Print Network [OSTI]

], microorganisms [2], in the case of abnormal maintenance. Because there are all kinds of components in the duct systems, tapping the law of particle distribution in HVAC systems is not an easy work. Generally speaking, flow in the duct system... is turbulent except those in some kind of components like filters. Particle movement, especially particle deposition, is strongly related to organized structures in near-wall turbulence [3]. The mechanisms governing particle transport in HVAC systems...

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

2006-01-01T23:59:59.000Z

196

Hvac systems as a tool in controlling indoor air quality: A literature review. Final report, May-August 1993  

SciTech Connect (OSTI)

The report gives results of a review of literature on the use of heating, ventilation, and air-conditioning (HVAC) systems to control indoor air quality (IAQ). One conclusion of the review is that HVAC systems very often contribute to the indoor air pollution because of (1) poor system maintenance, (2) overcrowding or the introduction of new pollution-generating sources with buildings, and (3) the location of outdoor air near ambient pollution sources. Another conclusion is that failure to trade off between energy conservation and employee productivity may result in increased IAQ problems. The report contents are based on literature survey covering the years 1988 through 1993, involving 60 references, 32 of which are cited in the report.

Samfield, M.M.

1995-12-01T23:59:59.000Z

197

Better Buildings Neighborhood Program Business Models Guide:...  

Broader source: Energy.gov (indexed) [DOE]

Guide: HVAC Contractor Business Model Better Buildings Neighborhood Program Business Models Guide: HVAC Contractor Business Model HVAC contractor business model...

198

CO 2 - Based Demand-Controlled Ventilation Control Strategies for Multi-Zone HVAC Systems  

E-Print Network [OSTI]

CO 2-based demand-controlled ventilation DCV strategy offers a great opportunity to reduce energy consumption in HVAC systems while providing the required ventilation. However, implementing CO 2-based DCV under ASHRAE 62.1.2004 through 2010...

Nassif, N.

2011-01-01T23:59:59.000Z

199

Analysis of the HVAC System at the Willow Branch Intermediate School  

E-Print Network [OSTI]

This report presents an analysis of the HVAC system at the Willow Branch Intermediate School for the MEEN 685 class project. The school is located at College Station, Texas. A portion of the school belonged to Oakwood Intermediate School which...

Wei, G.

1997-01-01T23:59:59.000Z

200

Energy Master Plans for Sustainable, High Performance HVAC and Associated Systems for Hot and Humid Climates  

E-Print Network [OSTI]

ENERGY MASTER PLANS for SUSTAINABLE, HIGH PERFORMANCE HVAC & ASSOCIATED SYSTEMS for HOT AND HUMID CLIMATES Grahame E. Maisey, P.E. Beverly Milestone Chief Engineer President GEMCO Energy Master Planners GEMCO Energy... net zero energy, high performance productivity and long-life systems for minimal material use. This is achieved by a number of small, easy steps and at a rate and schedule determined by the owner. Projects will eventually reduce HVAC...

Maisey, G. E.; Milestone, B.

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "building hvac systems" 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

Outdoor airflow into HVAC systems: An evaluation of measurement technologies  

SciTech Connect (OSTI)

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.

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

2003-09-01T23:59:59.000Z

202

Building Energy Information Systems: State of the Technology and User Case Studies  

E-Print Network [OSTI]

Diagnostic trends of VAV zone temperatures HVAC 0200 - 4 1trend points. Each day eight person hours are dedicated to building-by-building HVAC

Granderson, Jessica

2010-01-01T23:59:59.000Z

203

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

E-Print Network [OSTI]

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

Kimla, John

2010-01-01T23:59:59.000Z

204

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

205

MODELING AND SIMULATION OF HVAC FAULTS IN ENERGYPLUS  

E-Print Network [OSTI]

Symptoms Decreased boiler efficiency due to the increasedresult in reduced boiler efficiency if the sensor hasboiler and two chillers in the plant loop. The building envelope prescriptive minimums and HVAC system efficiencies

Basarkar, Mangesh

2013-01-01T23:59:59.000Z

206

Application of black-box models to HVAC systems for fault detection  

SciTech Connect (OSTI)

This paper describes the application of black-box models for fault detection and diagnosis (FDD) in heating, ventilating, and air-conditioning (HVAC) systems. In this study, multiple-input/single-output (MISO) ARX models and artificial neural network (ANN) models are used. The ARX models are examined for different processes and subprocesses and compared with each other. Two types of models are established--system models and component models. In the case of system models, the HVAC system as a whole is regarded as a black box instead of as a collection of component models. With the component model type, the components of the HVAC system are regarded as separate black boxes.

Peitsman, H.C. [TNO Building and Construction Research, Delft (Netherlands). Dept. of Indoor Environment, Building Physics and Systems; Bakker, V.E. [Univ. of Twente, Enschede (Netherlands). Dept. of Computer Science

1996-11-01T23:59:59.000Z

207

Distributed scheduling for efficient HVAC precooling operations  

E-Print Network [OSTI]

of supply and return fans for HVAC systems under di?erentOp- timal Scheduling of HVAC Pre-cooling Operations withScheduling for E?cient HVAC Pre-cooling Operations ? Yang

Yang, Su

2014-01-01T23:59:59.000Z

208

The Effect of Optimal Tuning of the Heating/Cooling Curve in AHU of HVAC System in Real Practice  

E-Print Network [OSTI]

be ordered by ISSO. http://www.isso.nl/ Elkhuizen P.A. , Peitsman H.C., ? A new design guideline for the heating and cooling curve in AHU of HVAC systems (a method for the optimal adjustment of AHU in HVAC systems) ?, A40-E-M4-NL-TNO-1, IEA Annex 40...

2004-01-01T23:59:59.000Z

209

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.

210

HVAC Installed Performance  

Broader source: Energy.gov [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?"

211

Integrated high efficiency blower apparatus for HVAC systems  

DOE Patents [OSTI]

An integrated centrifugal blower wheel for a heating, ventilation and air conditioning (HVAC) blower unit includes a first blade support, a second blade support, and a plurality of S-shaped blades disposed between the first and second blade supports, wherein each of the S-shaped blades has a trailing edge bent in a forward direction with respect to a defined direction of rotation of the wheel.

Liu, Xiaoyue; Weigman, Herman; Wang, Shixiao

2007-07-24T23:59:59.000Z

212

Systems and methods for controlling energy use in a building management system using energy budgets  

SciTech Connect (OSTI)

Systems and methods for limiting power consumption by a heating, ventilation, and air conditioning (HVAC) subsystem of a building are shown and described. A mathematical linear operator is found that transforms the unused or deferred cooling power usage of the HVAC system based on pre-determined temperature settings to a target cooling power usage. The mathematical operator is applied to the temperature settings to create a temperature setpoint trajectory expected to provide the target cooling power usage.

Wenzel, Michael J.

2012-06-17T23:59:59.000Z

213

The Identification and Optimization of the HVAC Partial Subsystems in Intelligent Buildings  

E-Print Network [OSTI]

This paper presents on modeling of outside air systems (OAS) and air condition systems (ACS) of intelligent buildings (IB). The open loop identification estimation method is adopted for uncorrelated noises between the input and output (I...

Zhao, Z.; Xiong, Y.

2004-01-01T23:59:59.000Z

214

Energy Management in Small Commercial Buildings: A Look at How HVAC Contractors Can Deliver Energy Efficiency to this Segment  

SciTech Connect (OSTI)

While buildings smaller than 50,000 sq ft account for nearly half of the energy used in US commercial buildings, energy efficiency programs to-date have primarily focused on larger buildings. Interviews with stakeholders and a review of the literature indicate interest in energy efficiency from the small commercial building sector, provided solutions are simple and low-cost. An approach to deliver energy management to small commercial buildings via HVAC contractors and preliminary demonstration findings are presented. The energy management package (EMP) developed includes five technical elements: benchmarking and analysis of monthly energy use; analysis of interval electricity data (if available), a one-hour onsite walkthrough, communication with the building owner, and checking of results. This data-driven approach tracks performance and identifies low-cost opportunities, using guidelines and worksheets for each element to streamline the delivery process and minimize the formal training required. This energy management approach is unique from, but often complementary to conventional quality maintenance or retrofit-focused programs targeting the small commercial segment. Because HVAC contractors already serve these clients, the transaction cost to market and deliver energy management services can be reduced to the order of hundreds of dollars per year. This business model, outlined briefly in this report, enables the offering to benefit the contractor and client even at the modest expected energy savings in small buildings. Results from a small-scale pilot of this approach validated that the EMP could be delivered by contractors in 4-8 hours per building per year, and that energy savings of 3-5percent are feasible through this approach.

Hult, Erin; Granderson, Jessica; Mathew, Paul

2014-07-01T23:59:59.000Z

215

Demo Abstract: Building Energy Management Systems Actuated Using Wireless Camera Sensor Networks  

E-Print Network [OSTI]

Demo Abstract: Building Energy Management Systems Actuated Using Wireless Camera Sensor Networks for approximately 60% of the energy con- sumption within buildings [4]. The conditioning of these ar- eas, however, conditioning (HVAC) sys- tems in residential and commercial buildings account for 50% of the total building

Cerpa, Alberto E.

216

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.

217

Comparison of emerging diagnostic tools for large commercial HVAC systems  

SciTech Connect (OSTI)

Diagnostic software tools for large commercial buildings are being developed to help detect and diagnose energy and other performance problems with building operations. These software applications utilize energy management control system (EMCS) trend log data. Due to the recent development of diagnostic tools, there has been little detailed comparison among the tools and a limited awareness of tool capabilities by potential users. Today, these diagnostic tools focus mainly on air handlers, but the opportunity exists for broadening the scope of the tools to include all major parts of heating, cooling, and ventilation systems in more detail. This paper compares several tools in the following areas: (1) Scope, intent, and background; (2) Data acquisition, pre-processing, and management; (3) Problems detected; (4) Raw data visualization; (5) Manual and automated diagnostic methods and (6) Level of automation. This comparison is intended to provide practitioners and researchers with a picture of the current state of diagnostic tools. There is tremendous potential for these tools to help improve commercial building energy and non-energy performance.

Friedman, Hannah; Piette, Mary Ann

2001-04-06T23:59:59.000Z

218

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

219

Measurement of HVAC system performance and local ventilation using passive perfluorocarbon tracer technology  

SciTech Connect (OSTI)

In April of 1993, two (2) perfluorocarbon tracer (PFT) ventilation/indoor air quality assessment tests were performed in the Gleeson Hall building of the SUNY Farmingdale campus. The building was being modified, in part, as a result of significant occupant complaints of perceived poor air quality. The four story building had a basement first floor with air supplied normally by an HVAC system labelled as AC1. During this study, AC1 was inoperational and the basement interior rooms (walls) were primarily gone; the other three floors were still being used for classes. It is possible that a sense of poor air quality may have been perceived by first-floor occupants because they were working in the basement, but this issue could not be addressed. The second floor had two (2) lecture halls--Rm 202 (handled by AC4) and Rm 204 (handled by AC5); the balance of the second floor interior rooms and corridors was split between two other air handling systems, AC2 for the west side of the building and AC3 for the east side. The remaining 3rd and 4th floors were also split about evenly between AC2 and AC3. The perimeter rooms, equipped with wall units having their own outside air (OA) source plus centralized return air (RA) bypasses, were not included in this testing which was restricted to the basement floor (1st floor) and the four operating air handling systems, AC2 to AC5, during Test 1 and only AC2 to AC5 during Test 2. Two types of tests were performed using the full suite of 5 PFT types available. The first test was designed to measure the infiltration, exfiltration, and air exchange between the 5 AC zones above and the second test used the 5th tracer, which had been in the basement, as a distributed source throughout the four other zones to act as a surrogate pollutant source. This report provides final conclusions of both tests and suggestions regarding its usefulness in similar building ventilation and indoor air quality assessments.

Dietz, R.N.; Goodrich, R.W.

1995-06-01T23:59:59.000Z

220

DOE Zero Energy Ready Home Webinar: Comprehensive Building Science...  

Broader source: Energy.gov (indexed) [DOE]

durability - a complete thermal enclosure system, a complete HVAC system, and a complete water management system. In this webinar, Dean Gamble of EPA will cover the building...

Note: This page contains sample records for the topic "building hvac systems" 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

Impact of the Variable Refrigerant Volume Air Conditioning System on Building Energy Efficiency  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-1-3 Impact of the Variable Refrigerant Volume Air Conditioning System on Building Energy Efficiency Huawei Zhu Zhejiang Urban and Rural Planning Design Institute... conditioning system has led to extensive criticism. 2. THE CHARACTERISTICS OF THE VARIABLE REFRIGERANT VOLUME AIR CONDITIONING SYSTEM AND ITS PRESENT APPLICATION ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency Vol.IV-1-3 2...

Zhu, H.

2006-01-01T23:59:59.000Z

222

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

E-Print Network [OSTI]

performance of a solar-thermal- assisted hvac system. Energyfor rows of fixed solar thermal collectors using flatassisted by a 232 m solar thermal array providing heat to a

Mammoli, Andrea

2014-01-01T23:59:59.000Z

223

Integrated Ice Storage/Sprinkler HVAC System Sharply Cuts Energy Costs and Air-Distribution First Costs  

E-Print Network [OSTI]

Integrated ice thermal storage/sprinkler HVAC systems developed and applied by the author in several commercial applications shift a major portion of electric utility demand to cheaper off-peak hours, while also reducing significantly the first cost...

Meckler, G.

1986-01-01T23:59:59.000Z

224

Energy Conservation Experiences with HVAC Systems in the High Humidity Climate, A Case History  

E-Print Network [OSTI]

ENERGY CONSERVATION EXPERIENCES VITH HVAC SYSTEMS IN THE HIGH HUMIDITY CLIMATE. A CASE HISTORY Tom R. Todd Principa 1 Engineering Sciences, Inc. Memphis, Tennessee 38112 The purpose of this paper is to discuss sev- era 1 commonly encountered.... Condensation during normal sys tern opere- tion. It was frequently found that moisture in the room air would condense on cold surfaces around supply air diffusers during normal opera- tion of the system. Direct evidence of this was simply the presence...

Todd, T. R.

1985-01-01T23:59:59.000Z

225

Comparative guide to emerging diagnostic tools for large commercial HVAC systems  

SciTech Connect (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

226

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

E-Print Network [OSTI]

Post-retrocommissioning HVAC Operations Monitoring Using Enterprise-wide Energy Management System Narendra Amarnani Project Manager Brian Roberts Section Manager County of Los Angeles – ISD Los Angeles, California, USA Howard Choy... earned a graduate degree from Cal Poly University, Pomona. He is a Certified Energy Manager, a LEED® AP, and a Certified Energy Plan Examiner. Brian’s is the Section Manager of the Systems Section within Energy Management Division. His...

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

2007-01-01T23:59:59.000Z

227

System-Level Monitoring and Diagnosis of Building HVAC System  

E-Print Network [OSTI]

695. [50] M. Wetter, Modelica-based modelling and simulationhave been working on Modelica and EnergyPlus simulation59], DOE-2, TRANSYS, Modelica [50], etc. make use of the

Wu, Siyu

2013-01-01T23:59:59.000Z

228

System-Level Monitoring and Diagnosis of Building HVAC System  

E-Print Network [OSTI]

setpoint may demand less cooling supply air. A fouled airsetpoint may demand less cooling supply air. A fouled airrequires more cooling or heating supply air from its upper-

Wu, Siyu

2013-01-01T23:59:59.000Z

229

Recent Developments of the Modelica"Buildings" Library for Building Energy and Control Systems  

SciTech Connect (OSTI)

At the Modelica 2009 conference, we introduced the Buildings library, a freely available Modelica library for building energy and control systems. This paper reports the updates of the library and presents example applications for a range of heating, ventilation and air conditioning (HVAC) systems. Over the past two years, the library has been further developed. The number of HVAC components models has been doubled and various components have been revised to increase numerical robustness.The paper starts with an overview of the library architecture and a description of the main packages. To demonstrate the features of the Buildings library, applications that include multizone airflow simulation as well as supervisory and local loop control of a variable air volume (VAV) system are briefly described. The paper closes with a discussion of the current development.

Wetter, Michael; Zuo, Wangda; Nouidui, Thierry Stephane

2011-04-01T23:59:59.000Z

230

Project examples Install new HVAC, electrical, fire protection,  

E-Print Network [OSTI]

Project examples Install new HVAC, electrical, fire protection, and plumbing systems in Mechanical. · Totransformthisspaceandincreaseaccessibility, anelevatorisrequired.Currently,Blakelydoesnot haveone. Replace HVAC and electrical system

Blanchette, Robert A.

231

Chapter 19: HVAC Controls (DDC/EMS/BAS) Evaluation Protocol  

SciTech Connect (OSTI)

The HVAC Controls Evaluation Protocol is designed to address evaluation issues for direct digital controls/energy management systems/building automation systems (DDC/EMS/BAS) that are installed to control heating, ventilation, and air-conditioning (HVAC) equipment in commercial and institutional buildings. (This chapter refers to the DDC/EMS/BAS measure as HVAC controls.) This protocol may also be applicable to industrial facilities such as clean rooms and labs, which have either significant HVAC equipment or spaces requiring special environmental conditions. This protocol addresses only HVAC-related equipment and the energy savings estimation methods associated with installing such control systems as an energy efficiency measure. The affected equipment includes: Air-side equipment (air handlers, direct expansion systems, furnaces, other heating- and cooling-related devices, terminal air distribution equipment, and fans); Central plant equipment (chillers, cooling towers, boilers, and pumps). These controls may also operate or affect other end uses, such as lighting, domestic hot water, irrigation systems, and life safety systems such as fire alarms and other security systems. Considerable nonenergy benefits, such as maintenance scheduling, system component troubleshooting, equipment failure alarms, and increased equipment lifetime, may also be associated with these systems. When connected to building utility meters, these systems can also be valuable demand-limiting control tools. However, this protocol does not evaluate any of these additional capabilities and benefits.

Romberger, J.

2014-11-01T23:59:59.000Z

232

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

233

Proposal to negotiate an amendment to an existing contract for the supply and installation of an HVAC system for the HIE-ISOLDE infrastructure  

E-Print Network [OSTI]

Proposal to negotiate an amendment to an existing contract for the supply and installation of an HVAC system for the HIE-ISOLDE infrastructure

2014-01-01T23:59:59.000Z

234

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

235

Revision Date: 8/29/11 ETME 425 -Building Systems Fall 2011  

E-Print Network [OSTI]

system integration. Incorporate the elements (pumps, fans, compressors, heat exchangers, heaters. HVAC Equipment 10. Sanitary Venting and Draining 3. Heat Loss and Heat Gain 7. Building Water Supply in modern buildings - including system selection, heating and cooling load calculations, component selection

Dyer, Bill

236

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

237

The Impact of Uncertain Physical Parameters on HVAC Demand Response  

SciTech Connect (OSTI)

HVAC units are currently one of the major resources providing demand response (DR) in residential buildings. Models of HVAC with DR function can improve understanding of its impact on power system operations and facilitate the deployment of DR technologies. This paper investigates the importance of various physical parameters and their distributions to the HVAC response to DR signals, which is a key step to the construction of HVAC models for a population of units with insufficient data. These parameters include the size of floors, insulation efficiency, the amount of solid mass in the house, and efficiency of the HVAC units. These parameters are usually assumed to follow Gaussian or Uniform distributions. We study the effect of uncertainty in the chosen parameter distributions on the aggregate HVAC response to DR signals, during transient phase and in steady state. We use a quasi-Monte Carlo sampling method with linear regression and Prony analysis to evaluate sensitivity of DR output to the uncertainty in the distribution parameters. The significance ranking on the uncertainty sources is given for future guidance in the modeling of HVAC demand response.

Sun, Yannan; Elizondo, Marcelo A.; Lu, Shuai; Fuller, Jason C.

2014-03-01T23:59:59.000Z

238

Multi-Sensor Single-Actuator Control of HVAC Systems  

E-Print Network [OSTI]

It is common to control several rooms in a building with a single sensor in one of the rooms and a single actuator driving just one control element such as an air damper. New, low-cost, wireless sensor technology now offers the opportunity...

Lin, C.; Auslander, D.; Federspiel, C.

2002-01-01T23:59:59.000Z

239

Integration of HVAC System Design with Simplified Duct Distribution -  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergy Health andofIan Kalin About32C:\DocumentsProgram ManagementAdaptingBuilding

240

Diagnosis of Effectiveness of HVAC System and Energy Performance of Osaka-Gas Building through Retro-Commissioning Part 2 Handling the Data Produced by BEMS and Some Results of Analyses  

E-Print Network [OSTI]

. Operation patterns of heat source plants vary from 2003 to 2012 according to change in plant’s operational strategy. 90 percent of primary energy was consumed by generators and chillers. Since the plant is run by combined heat and power system, waste... heat from the generators is recovered and used for chillers. The efficiency of the generators had been kept around 0.35 which was almost same as specification of the machines. The efficiency of the entire system, however, was decreased, especially...

Yamaha, M.; Ando,T.

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "building hvac systems" 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

Case Study of an Innovative HVAC System with Integral Dehumidifier  

E-Print Network [OSTI]

prototype air conditioning/dehumidification system was initiated and focused on integrating a standalone room air dehumidifier and a conventional residential air handler into a single package. Potential benefits of the integrated system include lower... and construction of the prototype unit and the laboratory and field tests that were performed to evaluate the performance of the prototype system. Further details are available in the final task report (Raustad et al. 2007). PROTOTYPE CONSTRUCTION...

Shirey, D. B.; Raustad, R. A.

242

Decentralized model predictive control of a multiple evaporator HVAC system  

E-Print Network [OSTI]

and outputs .........................................................................9 Fig. 1.5 Areas of research.................................................................................................16 Fig. 2.1 Entire system....28 Refrigerant flow transducer ..............................................................................43 Fig. 2.29 Energy balance comparison ..............................................................................46 Fig. 3.1 Illustrative example...

Elliott, Matthew Stuart

2009-05-15T23:59:59.000Z

243

Methodology for design, calibration, system identification and operation of an experimental Hvac system.  

E-Print Network [OSTI]

??It is well known that building control systems rarely function as designed, contributing to excessive energy use and poor environmental control performance. In addition, most… (more)

Cui, Li

2013-01-01T23:59:59.000Z

244

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

245

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

246

Fault Detection and Diagnosis in Building HVAC Systems  

E-Print Network [OSTI]

box, fan, and heating/cooling coils in air-handling units.fan efficiency and coil duty. In this chapter, we present a statistical approach for rooftop unit

Najafi, Massieh

2010-01-01T23:59:59.000Z

247

Co-simulation of innovative integrated HVAC systems in buildings  

E-Print Network [OSTI]

Wetter, M. , 2009. Modelica-based Modeling and Simulation totools like TRNSYS or Modelica [http://www.modelica.org] have

Trcka, Marija

2010-01-01T23:59:59.000Z

248

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

SciTech Connect (OSTI)

Almost half of the total energy used in the U.S. buildings is consumed by heating, ventilation and air conditionings (HVAC) according to EIA statistics. Among various driving factors to energy performance of building, operations and maintenance play a significant role. Many researches have been done to look at design efficiencies and operational controls for improving energy performance of buildings, but very few study the impacts of HVAC systems maintenance. Different practices of HVAC system maintenance can result in substantial differences in building energy use. If a piece of HVAC equipment is not well maintained, its performance will degrade. If sensors used for control purpose are not calibrated, not only building energy usage could be dramatically increased, but also mechanical systems may not be able to satisfy indoor thermal comfort. Properly maintained HVAC systems can operate efficiently, improve occupant comfort, and prolong equipment service life. In the paper, maintenance practices for HVAC systems are presented based on literature reviews and discussions with HVAC engineers, building operators, facility managers, and commissioning agents. We categorize the maintenance practices into three levels depending on the maintenance effort and coverage: 1) proactive, performance-monitored maintenance; 2) preventive, scheduled maintenance; and 3) reactive, unplanned or no maintenance. A sampled list of maintenance issues, including cooling tower fouling, boiler/chiller fouling, refrigerant over or under charge, temperature sensor offset, outdoor air damper leakage, outdoor air screen blockage, outdoor air damper stuck at fully open position, and dirty filters are investigated in this study using field survey data and detailed simulation models. The energy impacts of both individual maintenance issue and combined scenarios for an office building with central VAV systems and central plant were evaluated by EnergyPlus simulations using three approaches: 1) direct modeling with EnergyPlus, 2) using the energy management system feature of EnergyPlus, and 3) modifying EnergyPlus source code. The results demonstrated the importance of maintenance for HVAC systems on energy performance of buildings. The research is intended to provide a guideline to help practitioners and building operators to gain the knowledge of maintaining HVAC systems in efficient operations, and prioritize HVAC maintenance work plan. The paper also discusses challenges of modeling building maintenance issues using energy simulation programs.

Wang, Liping; Hong, Tianzhen

2013-01-01T23:59:59.000Z

249

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

250

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

E-Print Network [OSTI]

regarding energy use. These all constitute drivers for the adoption of more sustainable ways of securing our energy needs (Shuai et al., 2011). Approximately about 40% of the world?s energy is consumed by buildings (ASHRAE, 2007), of which roughly about... short-comings; Passive infrared (PIR) sensor is the most commonly used technology for occupancy sensing in non-domestic buildings especially for lighting control (Delaney et al., 2009), however it fails to detect stationary occupants, thus switching...

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

2013-01-01T23:59:59.000Z

251

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

252

Monitored Performance of an Office Building with an Under-floor Air Distribution System  

E-Print Network [OSTI]

- conditioning equipment was assessed and energy and ventilation improvements suggested. The building was found to fall within good practice and standard practice for energy usage in air-conditioned commercial office buildings for the United Kingdom.... However, if not installed or designed properly, these systems can use as much or more energy than a conventional HVAC system. The results of long-term monitoring and short-term measurements in a commercial office building with a UFAD are presented...

Walker, C.; Norford, L.

2005-01-01T23:59:59.000Z

253

Value impact analysis of Generic Issue 143, Availability of Heating, Ventilation, Air Conditioning (HVAC) and Chilled Water Systems  

SciTech Connect (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

254

Building America Top Innovations 2014 Profile: HVAC Cabinet Air Leakage Test Method  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd:June 2015 < prev next > SunBuilding America-funded

255

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

256

A study of time-dependent responses of a mechanical displacement ventilation (DV) system and an underfloor air distribution (UFAD) system : building energy performance of the UFAD system  

E-Print Network [OSTI]

electricity demand responses in a building. The remedieselectricity demand responses for a building. An alternativedemand response (DR), is widely suggested for building HVAC

Yu, Jong Keun

2010-01-01T23:59:59.000Z

257

Flexibility of Commercial Building HVAC Fan as Ancillary Service for Smart Grid  

E-Print Network [OSTI]

controlled loads for load following,” in System Science (such as regulation and load following, have been formalized

Maasoumy, Mehdi

2013-01-01T23:59:59.000Z

258

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...

Choiniere, D.; Corsi, M.

2003-01-01T23:59:59.000Z

259

Building Energy Monitoring and Analysis  

E-Print Network [OSTI]

HVAC consumes more electricity in September, the daily trendsHVAC Equipment Figure 44 Building 2 typical weekday electricity consumption trendHVAC Equipment Figure 45 Building 2 typical weekend electricity consumption trend

Hong, Tianzhen

2014-01-01T23:59:59.000Z

260

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

Note: This page contains sample records for the topic "building hvac systems" 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

Airflow regulation in variable-speed systems for residential HVAC applications  

SciTech Connect (OSTI)

In the majority of heating, ventilating, and air-conditioning (HVAC) systems, air is the final medium for adding or extracting heat from or to the space to be air conditioned. Air is heated by passing it over a heat transfer device called a coil, which is a heat exchanger with air on the outside and the primary heating/cooling medium (water, steam, electricity, refrigerant, etc.) on the inside. One of the major factors determining heat transfer is the airflow rate, which can be controlled by mechanical means or by controlling the speed of the fan. Centrifugal fans driven by single-speed induction motors traditionally have been used in the JVAC industry but have an airflow characteristic that depends on the static pressure seen by the system. Variable-speed systems are starting to emerge as a strong alternative to traditional systems because of their ability to match the demand of the air-conditioned space, resulting in higher efficiencies and higher comfort. System efficiency can be improved by constraining the range of airflows provided by the fan or blower system in response to system pressure, that is, by controlling the airflow over the heat exchanger. This paper presents a method to regulate airflow independent of the static pressure and without the need for airflow sensors.

Becerra, R.C.; Beifus, B.L. [General Electric Co., Fort Wayne, IN (United States)

1996-11-01T23:59:59.000Z

262

Characterization of HVAC operation uncertainty in EnergyPlus AHU modules.  

E-Print Network [OSTI]

??This study addresses 5 uncertainties that exist in the operation of HVAC systems, which will presumably affect the actual energy consumption of the HVAC system… (more)

Sui, Di

2014-01-01T23:59:59.000Z

263

Case Study on Enhancing Equipment Efficiency and Operational Practices of a Signature LEED Building  

E-Print Network [OSTI]

-assurance and control process of commissioning has focused on HVAC systems. However, mechanical engineers charged with the task of acting as the commissioning authority (CA) are faced with non-HVAC building systems with which they may not have the expertise... • Improved building operation and maintenance • Improved building and worker productivity • Enhanced the market resale value for building owners Project Description Building Information The project is a 12 story mid-rise Class A office building...

Tseng, P.

2005-01-01T23:59:59.000Z

264

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

265

Demo Abstract: TOSS: Thermal Occupancy Sensing System  

E-Print Network [OSTI]

to a building's energy management system in order to control the Heating, Ventilation, Air Condition- ing, (HVAC problem; energy that is needlessly consumed within the buildings themselves. In most buildings, HVAC to 60% of all energy consumption in large build- ings [1], there is much incentive to reduce

Cerpa, Alberto E.

266

Building America Webinar: High Performance Space Conditioning Systems, Part II  

Broader source: Energy.gov [DOE]

The webinar on Nov. 18, 2014, continued the series on strategies to improve the performance of HVAC systems for low load homes and home performance retrofits.

267

Building America Webinar: High Performance Space Conditioning Systems, Part I  

Broader source: Energy.gov [DOE]

The webinar on Oct. 23, 2014 focused on strategies to improve the performance of HVAC systems for low load homes and home performance retrofits.

268

MEMS CHIP CO2 SENSOR FOR BUILDING SYSTEMS INTEGRATION  

SciTech Connect (OSTI)

The objective of this research was to develop an affordable, reliable sensor to enable demand controlled ventilation (DCV). A significant portion of total energy consumption in the United States is used for heating or air conditioning (HVAC) buildings. To assure occupant safety and fresh air levels in large buildings, and especially those with sealed windows, HVAC systems are frequently run in excess of true requirements as automated systems cannot now tell the occupancy level of interior spaces. If such a sensor (e.g. thermostat sized device) were available, it would reduce energy use between 10 and 20% in such buildings. A quantitative measure of ''fresh air'' is the concentration of carbon dioxide (CO{sub 2}) present. An inert gas, CO{sub 2} is not easily detected by chemical sensors and is usually measured by infrared spectroscopy. Ion Optics research developed a complete infrared sensor package on a single MEMS chip. It contains the infrared (IR) source, IR detector and IR filter. The device resulting from this DOE sponsored research has sufficient sensitivity, lifetime, and drift rate to meet the specifications of commercial instrument manufacturers who are now testing the device for use in their building systems.

Anton Carl Greenwald

2005-09-14T23:59:59.000Z

269

Optimization Control Strategies for HVAC Terminal Boxes  

E-Print Network [OSTI]

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...

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

270

Systems building in architecture  

E-Print Network [OSTI]

This work is an inquiry into the interventions of the systems design in the whole building process. At the beginning, three approaches which represent different points of view of interventions in production and use are ...

Tzannetakis, Charilaos Panayotis

1983-01-01T23:59:59.000Z

271

Energy Performance Comparison of Heating and Air Conditioning Systems for Multi-Family Residential Buildings  

SciTech Connect (OSTI)

The type of heating, ventilation and air conditioning (HVAC) system has a large impact on the heating and cooling energy consumption in multifamily residential buildings. This paper compares the energy performance of three HVAC systems: a direct expansion (DX) split system, a split air source heat pump (ASHP) system, and a closed-loop water source heat pump (WSHP) system with a boiler and an evaporative fluid cooler as the central heating and cooling source. All three systems use gas furnace for heating or heating backup. The comparison is made in a number of scenarios including different climate conditions, system operation schemes and applicable building codes. It is found that with the minimum code-compliant equipment efficiency, ASHP performs the best among all scenarios except in extremely code climates. WSHP tends to perform better than the split DX system in cold climates but worse in hot climates.

Wang, Weimin; Zhang, Jian; Jiang, Wei; Liu, Bing

2011-07-31T23:59:59.000Z

272

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

273

Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd: ScopeDepartment1,Energy ForBryan WheelerResidentialHVAC A

274

Origins of Analysis Methods in Energy Simulation Programs Used for High Performance Commercial Buildings  

E-Print Network [OSTI]

Current designs of high performance buildings utilize hourly building energy simulations of complex, interacting systems. Such simulations need to quantify the benefits of numerous features including: thermal mass, HVAC systems and, in some cases...

Oh, Sukjoon

2013-08-19T23:59:59.000Z

275

Getting a Better Performing Building: Commissioning and Real Time Data Analysis  

E-Print Network [OSTI]

based on real time system operational data. Because of the dynamic nature and complexity of commercial building HVAC systems, they are the perfect target for periodic performance assessments, or recommissioning. Today's buildings are expected to supply...

Barba, M.

2002-01-01T23:59:59.000Z

276

EECBG Success Story: HVAC Upgrade Saving Money, Protecting History...  

Broader source: Energy.gov (indexed) [DOE]

HVAC Upgrade Saving Money, Protecting History EECBG Success Story: HVAC Upgrade Saving Money, Protecting History November 2, 2010 - 5:37pm Addthis A new heating and cooling system...

277

Indirect Benefits (Increased Roof Life and HVAC Savings) from...  

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

Indirect Benefits (Increased Roof Life and HVAC Savings) from a Solar PV System at the San Jos Convention Center Indirect Benefits (Increased Roof Life and HVAC Savings) from a...

278

Lessons Learned During HVAC Installation Dept. of Computer Science  

E-Print Network [OSTI]

Lessons Learned During HVAC Installation Ian Watson AI-CBR Dept. of Computer Science University of HVAC equipment. It has been developed as an adjunct to an existing system that uses case-based reasoning to reuse previous HVAC installation specifications and designs. The system described lets

Watson, Ian

279

Fuzzy Linguistic Knowledge Based Behavior Extraction for Building Energy Management Systems  

SciTech Connect (OSTI)

Significant portion of world energy production is consumed by building Heating, Ventilation and Air Conditioning (HVAC) units. Thus along with occupant comfort, energy efficiency is also an important factor in HVAC control. Modern buildings use advanced Multiple Input Multiple Output (MIMO) control schemes to realize these goals. However, since the performance of HVAC units is dependent on many criteria including uncertainties in weather, number of occupants, and thermal state, the performance of current state of the art systems are sub-optimal. Furthermore, because of the large number of sensors in buildings, and the high frequency of data collection, large amount of information is available. Therefore, important behavior of buildings that compromise energy efficiency or occupant comfort is difficult to identify. This paper presents an easy to use and understandable framework for identifying such behavior. The presented framework uses human understandable knowledge-base to extract important behavior of buildings and present it to users via a graphical user interface. The presented framework was tested on a building in the Pacific Northwest and was shown to be able to identify important behavior that relates to energy efficiency and occupant comfort.

Dumidu Wijayasekara; Milos Manic

2013-08-01T23:59:59.000Z

280

Building diagnosable distributed systems  

E-Print Network [OSTI]

Building diagnosable distributed systems Petros Maniatis Intel Research Berkeley ICSI ­ Security] Project response@R (R, K, SI) lookup response Specification #12;2/8/2006 Petros Maniatis9 Strawman Design Join lookup.NI == node.NI Join lookup.NI == succ.NI Select K in (N, S] Project response@R (R, K, SI

Maniatis, Petros

Note: This page contains sample records for the topic "building hvac systems" 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 evaluation of technologies for real-time measurement of rates of outdoor airflow into HVAC systems  

SciTech Connect (OSTI)

During the last few years, new technologies have been introduced for real-time continuous measurement of 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 a controlled evaluation of these measurement technologies. The results of tests of four commercially available measurement technologies and one prototype based on a new design are also summarized. The test system and protocol were judged practical and very useful. The series of tests identified three commercially available measurement technologies that should provide reasonably accurate measurements of OA flow rates as long as air velocities are maintained high enough to produce accurately measurable pressure signals. In HVAC systems with economizer controls, to maintain the required air velocities the OA intake will need to be divided into two sections in parallel, each with a separate OA damper. The errors in OA flow rates measured with the fourth commercially available measurement technology were 20% to 30% with horizontal probes but much larger with vertical probes. The new prototype measurement technology was the only one that appears suitable for measuring OA flow rates over their full range from 20% OA to 100% OA without using two separate OA dampers. All of the measurement devices had pressure drops that are likely to be judged acceptable. The influence of wind on the accuracy of these measurement technologies still needs to be evaluated.

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

2004-09-01T23:59:59.000Z

282

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.

283

Modeling and simulation of HVAC Results in EnergyPlus  

E-Print Network [OSTI]

LBNL-5564E Modeling and simulation of HVAC Results in EnergyPlus Mangesh Basarkar, Xiufeng Pang;MODELING AND SIMULATION OF HVAC FAULTS IN ENERGYPLUS Mangesh Basarkar, Xiufeng Pang, Liping Wang, Philip not capture the significant impact of installation, operational and degradation HVAC system faults on actual

284

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

285

Intelligent Building Control System for EPBD Certification Support  

E-Print Network [OSTI]

of intelligent HVAC buildings could provide not only the information needed for the operational control of building, but also to detect faults and to evaluate the energy performance of the building. Under the IEA Annex 47 project, authors started to develop...

Kabele, K.

2011-01-01T23:59:59.000Z

286

Measurements of Smoke Characteristics in HVAC Ducts   

E-Print Network [OSTI]

The characteristics of smoke traveling in an HVAC duct have been observed along with the response of selected duct smoke detectors. The simulated HVAC system consists of a 9 m long duct, 0.45 m in diameter. An exhaust fan is placed at one end...

Wolin, Steven D; Ryder, Noah L; Leprince, Frederic; Milke, James; Mowrer, Frederick; Torero, Jose L

2001-01-01T23:59:59.000Z

287

The integration of water loop heat pump and building structural thermal storage systems  

SciTech Connect (OSTI)

Many commercial buildings need heat in one part and, at the same time, cooling in another part. Even more common is the need for heating during one part of the day and cooling during another in the same spaces. If that energy could be shifted or stored for later use, significant energy might be saved. If a building's heating and cooling subsystems could be integrated with the building's structural mass and used to collect, store, and deliver energy, the energy might be save cost-effectively. To explore this opportunity, researchers at the Pacific Northwest Laboratory (PNL) examined the thermal interactions between the heating, ventilating, and air-conditioning (HVAC) system and the structure of a commercial building. Computer models were developed to simulate the interactions in an existing building located in Seattle, Washington, to determine how these building subsystems could be integrated to improve energy efficiency. The HVAC subsystems in the existing building were modeled. These subsystems consist of decentralized water-source heat pumps (WSHP) in a closed water loop, connected to cooling towers for heat rejection during cooling mode and boilers to augment heating. An initial base case'' computer model of the Seattle building, as-built, was developed. Metered data available for the building were used to calibrate this model to ensure that the analysis would provide information that closely reflected the operation of a real building. The HVAC system and building structure were integrated in the model using the concrete floor slabs as thermal storage media. The slabs may be actively charged during off-peak periods with the chilled water in the loop and then either actively or passively discharged into the conditioned space during peak periods. 21 refs., 37 figs., 17 tabs.

Marseille, T.J.; Schliesing, J.S.

1991-10-01T23:59:59.000Z

288

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

289

THE DOE-2 COMPUTER PROGRAM FOR THERMAL SIMULATION OF BUILDINGS  

E-Print Network [OSTI]

of the energy addition and extraction actually to be supplied at the heating and cooling coils by the HVAC of the hour-by-hour heat loss and gain to the building spaces and the heating and cooling loads imposed upon of the HVAC system, the time-varying temperature set-points, and the heating, cooling and fan schedules

290

Free-cooling: A total HVAC design concept  

SciTech Connect (OSTI)

This paper discusses a total ''free cooling'' HVAC design concept in which mechanical refrigeration is practically obviated via the refined application of existing technological strategies and a new diffuser terminal. The principles being applied are as follows; Thermal Swing: This is the active contribution of programmed heat storage to overall HVAC system performance. Reverse Diffuser: This is a new air terminal design that facilitates manifesting the thermal storage gains. Developing the thermal storage equation system into a generalized simulation model, optimizing the thermal storage and operating strategies with a computer program and developing related algorithms are subsequently illustrated. Luminair Aspiration: This feature provides for exhausting all luminair heat totally out of the building envelope, via an exhaust duct system and insulated boots. Two/Three-Stage Evaporative Cooling: This concept comprises a system of air conditioning that entails a combination of closed and open loop evaporative cooling with standby refrigeration only.

Janeke, C.E.

1982-01-01T23:59:59.000Z

291

Methods for Automated and Continuous Commissioning of Building Systems  

SciTech Connect (OSTI)

Avoidance of poorly installed HVAC systems is best accomplished at the close of construction by having a building and its systems put ''through their paces'' with a well conducted commissioning process. This research project focused on developing key components to enable the development of tools that will automatically detect and correct equipment operating problems, thus providing continuous and automatic commissioning of the HVAC systems throughout the life of a facility. A study of pervasive operating problems reveled the following would most benefit from an automated and continuous commissioning process: (1) faulty economizer operation; (2) malfunctioning sensors; (3) malfunctioning valves and dampers, and (4) access to project design data. Methodologies for detecting system operation faults in these areas were developed and validated in ''bare-bones'' forms within standard software such as spreadsheets, databases, statistical or mathematical packages. Demonstrations included flow diagrams and simplified mock-up applications. Techniques to manage data were demonstrated by illustrating how test forms could be populated with original design information and the recommended sequence of operation for equipment systems. Proposed tools would use measured data, design data, and equipment operating parameters to diagnosis system problems. Steps for future research are suggested to help more toward practical application of automated commissioning and its high potential to improve equipment availability, increase occupant comfort, and extend the life of system equipment.

Larry Luskay; Michael Brambley; Srinivas Katipamula

2003-04-30T23:59:59.000Z

292

Building America Expert Meeting Report: Transitioning Traditional...  

Broader source: Energy.gov (indexed) [DOE]

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

293

Identification of the Flow Resistance Coefficient and Validation of a Building Air Conditioning System  

E-Print Network [OSTI]

for HRC estimation is investigated in this paper. And some conclusions can be got as follows: 1) The MGO method is applicable for S value identification. The method is based on the principle for multi goal optimization. The process can be widely used...ICEBO2006, Shenzhen, China HVAC Technologies for Energy Efficiency, Vol. IV-11-2 Zhijian Hou Identification of the Flow Resistance Coefficient and Validation of a Building Air Conditioning System Zhiwei Lian...

Hou, Z.; Lian, Z.

2006-01-01T23:59:59.000Z

294

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

E-Print Network [OSTI]

Predictive Clothing Insulation Models based on Outdoor AirPREDICTIVE CLOTHING INSULATION MODELS ON BUILDING ENERGYthat the clothing insulation is equal to a constant value of

Schiavon, Stefano; Lee, Kwang Ho

2013-01-01T23:59:59.000Z

295

Development of Building Automation and Control Systems  

E-Print Network [OSTI]

A design flow for building automation and control systems,’’Development of Building Automation and Control Systems Yangdesign of the build- ing automation system (including the

Yang, Yang; Zhu, Qi; Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

2012-01-01T23:59:59.000Z

296

Model Code for the Control of Residential HVAC Distribution System Leakage and HVAC-Induced Building Leakage  

E-Print Network [OSTI]

, Underwriters Laboratories, Inc., the Air Conditioning Contractors Of America, the Thermal Insulation Manufacturers Association, the National Fire Protection Association, and the Gypsum Association....

Wemhoff, P.

1990-01-01T23:59:59.000Z

297

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

298

Advanced Retro-commissioning Technology: Predictive Energy Optimization (PEO) and Automated Demand Response for Commercial Building HVAC  

Broader source: Energy.gov [DOE]

Lead Performer: BuildingIQ, Inc. – Foster City, CaliforniaPartners: Department of General Services – Washington, DCDOE Funding: $1,767,138Cost Share: $1,767,138Project Term: October 2014 –...

299

Building America System Research  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd:June 2015 < prev next > Sun Mon TueBuilding America System

300

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

Note: This page contains sample records for the topic "building hvac systems" 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

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

SciTech Connect (OSTI)

In this report, we discuss the accuracy of flow hoods for residential applications, based on laboratory tests and field studies. The results indicate that commercially available hoods are often inadequate to measure flows in residential systems, and that there can be a wide range of performance between different flow hoods. The errors are due to poor calibrations, sensitivity of existing hoods to grille flow non-uniformities, and flow changes from added flow resistance. We also evaluated several simple techniques for measuring register airflows that could be adopted by the HVAC industry and homeowners as simple diagnostics that are often 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, organizations 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 hoods.

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

2003-08-01T23:59:59.000Z

302

Distributed Control of HVAC&R Networks  

E-Print Network [OSTI]

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...

Elliott, Matthew Stuart

2013-07-05T23:59:59.000Z

303

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

SciTech Connect (OSTI)

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

304

HVAC Maintenance and Technologies  

Broader source: Energy.gov [DOE]

Presentation covers the HVAC maintenance and technologies, and is given at the Spring 2010 Federal Utility Partnership Working Group (FUPWG) meeting in Providence, Rhode Island.

305

System Configuration Management Implementation Procedure for the Canister Storage Building (CSB)  

SciTech Connect (OSTI)

This document provides configuration management for the Distributed Control System (DCS), the Gaseous Effluent Monitoring System (GEMS-100) System, the Heating Ventilation and Air Conditioning (HVAC) Programmable Logic Controller (PLC), the Canister Receiving Crane (CRC) CRN-001 PLC, and both North and South vestibule door interlock system PLCs at the Canister Storage Building (CSB). This procedure identifies and defines software configuration items in the CSB control and monitoring systems, and defines configuration control throughout the system life cycle. Components of this control include: configuration status accounting; physical protection and control; and verification of the completeness and correctness of these items.

GARRISON, R.C.

2000-11-28T23:59:59.000Z

306

Building America Webinar: High Performance Space Conditioning Systems, Part I  

Broader source: Energy.gov [DOE]

The webinar will focus on strategies to improve the performance of HVAC systems for low load homes and home performance retrofits. Presenters and specific topics for this webinar will be:

307

Building America Webinar: High Performance Space Conditioning Systems, Part II  

Broader source: Energy.gov [DOE]

The webinar will continue our series on strategies to improve the performance of HVAC systems for low load homes and home performance retrofits. Presenters and specific topics for this webinar...

308

Sustainable Building Rating Systems Summary  

SciTech Connect (OSTI)

The purpose of this document is to offer information that could be used to compare and contrast sustainable building rating systems.

Fowler, Kimberly M.; Rauch, Emily M.

2006-07-01T23:59:59.000Z

309

Co-Simulation of Building Energy and Control Systems with the Building Controls Virtual Test Bed  

SciTech Connect (OSTI)

This article describes the implementation of the Building Controls Virtual Test Bed (BCVTB). The BCVTB is a software environment that allows connecting different simulation programs to exchange data during the time integration, and that allows conducting hardware in the loop simulation. The software architecture is a modular design based on Ptolemy II, a software environment for design and analysis of heterogeneous systems. Ptolemy II provides a graphical model building environment, synchronizes the exchanged data and visualizes the system evolution during run-time. The BCVTB provides additions to Ptolemy II that allow the run-time coupling of different simulation programs for data exchange, including EnergyPlus, MATLAB, Simulink and the Modelica modelling and simulation environment Dymola. The additions also allow executing system commands, such as a script that executes a Radiance simulation. In this article, the software architecture is presented and the mathematical model used to implement the co-simulation is discussed. The simulation program interface that the BCVTB provides is explained. The article concludes by presenting applications in which different state of the art simulation programs are linked for run-time data exchange. This link allows the use of the simulation program that is best suited for the particular problem to model building heat transfer, HVAC system dynamics and control algorithms, and to compute a solution to the coupled problem using co-simulation.

Wetter, Michael

2010-08-22T23:59:59.000Z

310

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

E-Print Network [OSTI]

-state indoor mass concentration of SOA, CSOA (µg/m3 ), is: Proceedings of Healthy Buildings 2009 Paper 727 #12

Siegel, Jeffrey

311

Proposal for the award of a contract for the design, supply, installation and commissioning of a Heating Ventilation and Air Conditioning (HVAC) system for the HIE-ISOLDE infrastructure  

E-Print Network [OSTI]

Proposal for the award of a contract for the design, supply, installation and commissioning of a Heating Ventilation and Air Conditioning (HVAC) system for the HIE-ISOLDE infrastructure

2012-01-01T23:59:59.000Z

312

Proposal for the award of a contract for the design, supply, installation and commissioning of a Heating, Ventilation and Air-Conditioning (HVAC) system for the computer room of the CERN Control Centre  

E-Print Network [OSTI]

Proposal for the award of a contract for the design, supply, installation and commissioning of a Heating, Ventilation and Air-Conditioning (HVAC) system for the computer room of the CERN Control Centre

2012-01-01T23:59:59.000Z

313

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

E-Print Network [OSTI]

. The sensations of thermal discomfort in these buildings have increased the energy consumption by the use. This development needs precise information about the effect of climate patterns on buildings. For energy find three types of database for the energy buildings simulations: - Simulations can be made by using

Boyer, Edmond

314

Impact of Different Glazing Systems on Cooling Load of a Detached Residential Building at Bhubaneswar, India  

E-Print Network [OSTI]

assuming north?south and east?west facings of the building. For each orientation, different types of glazing (Table 4) and different glazing areas are considered. The first case(the base case) assumes a single clear glazing with a window-to-wall ratio.... Floor plan of the east-west oriented residential building taken for study (not to scale) Table 1. The zones basic characteristics Zone Area (m2) Volume (m3) Occupancy (people/m2) Venti- lation (l/s) HVAC system Bed room1 15.12 52...

Sahoo, P. K.; Sahoo, R.

2010-01-01T23:59:59.000Z

315

Comparative Study of Availability on Energy/Environment Commissioning Using Existing HVAC Simulation Programs for a Model Building  

E-Print Network [OSTI]

limit of VAV air flow rate: 50% of minimum ? Heat Source System: Thermal storage system using AHP(Air-soure HeatPumps) ? Performance characteristics of fan, pump, heat pump are defined as manufacturer's ? Internal heat gain schedules are set...

Niwa, H.; Nakahara, N.; Okumiya, M.; Suganaga, M.; Tanaka, H.; Pan, S.; Watanabe, T.; Zheng, M.

2004-01-01T23:59:59.000Z

316

Results of CC Follow-Up in the G. Rollie White Building  

E-Print Network [OSTI]

of energy consumption of G. Rollie White Coliseum included energy consumption and HVAC system operation data analysis, measurement on HVAC systems, and examination of the control program. HVAC hardware problems, HVAC operation problems, and control program...

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

2002-01-01T23:59:59.000Z

317

Energy Department Issues Green Building Certification System...  

Broader source: Energy.gov (indexed) [DOE]

Issues Green Building Certification System Final Rule to Support Increased Energy Measurement and Efficient Building Design Energy Department Issues Green Building Certification...

318

Net Zero Design Yields Positive Results "Net zero" is used to describe a building designed to provide as  

E-Print Network [OSTI]

. Its two buildings produce enough energy from renewable sources (including a solar panel system source" heating and cooling system that employs 90 deep wells and saves 25-50% on HVAC energy. NASA first

Waliser, Duane E.

319

Re-Commissioning of the CAMET HVAC System: A Successful Case Study  

E-Print Network [OSTI]

commissioning was done in a hurry? And, as soon as starting his job, the manager received a fair amount of complaints from the building occupants. The building was selected as a "good" case study to illustrate the work developed in the frame of the IEA...

Andre, P.; Cuevas, C.; Lacote, P.; Lebrun, J.

2003-01-01T23:59:59.000Z

320

Integrated Building Management System (IBMS)  

SciTech Connect (OSTI)

This project provides a combination of software and services that more easily and cost-effectively help to achieve optimized building performance and energy efficiency. Featuring an open-platform, cloud- hosted application suite and an intuitive user experience, this solution simplifies a traditionally very complex process by collecting data from disparate building systems and creating a single, integrated view of building and system performance. The Fault Detection and Diagnostics algorithms developed within the IBMS have been designed and tested as an integrated component of the control algorithms running the equipment being monitored. The algorithms identify the normal control behaviors of the equipment without interfering with the equipment control sequences. The algorithms also work without interfering with any cooperative control sequences operating between different pieces of equipment or building systems. In this manner the FDD algorithms create an integrated building management system.

Anita Lewis

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "building hvac systems" 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

Smart Sensing, Estimation, and Prediction for Efficient Building Energy Management  

E-Print Network [OSTI]

Smart Sensing, Estimation, and Prediction for Efficient Building Energy Management Sunil Mamidi energy management software can greatly decrease the energy usage of HVAC systems in many building to improve efficiency. In most buildings, the most advanced examples of this type of system are the motion

Chang, Yu-Han

322

Methodology for the Determination of Potential Energy Savings in Commercial Buildings  

E-Print Network [OSTI]

This paper describes a methodology to determine potential energy savings of buildings with limited information. This methodology is based upon the simplified energy analysis procedure of heating, ventilation and air condition (HVAC) systems...

Baltazar-Cervantes, J. C.; Claridge, D. E.

2007-01-01T23:59:59.000Z

323

Energy performance of underfloor air distribution systems  

E-Print Network [OSTI]

HVAC  energy  for  large  office  building  new  construction  for  given UFAD  market HVAC energy  for  large  office  building  new construction  for  given  UFAD market HVAC energy for large office building new construction for given UFAD market

Bauman, Fred; Webster, Tom; Linden, Paul; Buhl, Fred

2007-01-01T23:59:59.000Z

324

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

Demirel, Melik C.

325

TITLE: HVAC TESTING & BALANCING FOR MAJOR AND MINOR PROJECTS OBJECTIVE AND  

E-Print Network [OSTI]

TITLE: HVAC TESTING & BALANCING FOR MAJOR AND MINOR PROJECTS OBJECTIVE AND PURPOSE: To provide an independent test & balance for the adjustment of all HVAC systems in all major projects and minor projects

Fernandez, Eduardo

326

Zone Level Occupant-Responsive Building Energy Systems at the GSA  

SciTech Connect (OSTI)

The General Services Administration (GSA) partnered with the U.S. Department of Energy (DOE) to develop and implement building energy system retrofits, aiming to reduce energy consumption of at least two building systems by a total of 30 percent or more, as part of DOE’s Commercial Building Partnership (CBP) Program. Lawrence Berkeley National Laboratory (LBNL) provided technical expertise in support of this DOE program, working with the GSA and a team of consultants. This case study reports expected energy savings from appropriate energy efficient design and operations modifications to lighting and heating, ventilating and air conditioning (HVAC) systems at the selected study sites. These retrofits comprised installation of new lighting systems with dimming capability and occupancy-sensor control at the individual light fixture level, and utilized lighting system occupancy sensor signals to continually readjust zone-level ventilation airflow according to the number of people present, down to minimum rates when vacant.

Robinson, Alastair

2014-03-01T23:59:59.000Z

327

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

328

National System Templates: Building Sustainable National Inventory...  

Open Energy Info (EERE)

Templates: Building Sustainable National Inventory Management Systems Jump to: navigation, search Tool Summary LAUNCH TOOL Name: National System Templates: Building Sustainable...

329

Basement Insulation Systems - Building America Top Innovation...  

Energy Savers [EERE]

Basement Insulation Systems - Building America Top Innovation Basement Insulation Systems - Building America Top Innovation This photo shows a framed basement wall with insulation...

330

Building America Webinar: Ductless Hydronic Distribution Systems...  

Energy Savers [EERE]

Building America Webinar: Ductless Hydronic Distribution Systems Building America Webinar: Ductless Hydronic Distribution Systems This webinar was presented by research team...

331

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

E-Print Network [OSTI]

American Society for Testing Materials Standards American Society of Heating, Refrigeration, and Air Except Low-Rise Residential Buildings American Water Works Association ANSI/ASHRAE Standard 62 supply units, and miscellaneous cooling equipment. Since the chilled water pumps at the central plant

Ohta, Shigemi

332

Use of EMCS Recorded Data to Identify Potential Savings Due to Improved HVAC Operations & Maintenance (O&M)  

E-Print Network [OSTI]

Use of EMCS Recorded Data to Identify Potential Savings Due to Improved HVAC Operations & Maintenance(O&M) Mingsheng Liu, Yeqiao Zhu, and David Claridge Energy Systems Laboratory Texas A&M University ABSTRACT In most chiller and boiler central... and cooling energy consumption using an appropriate model [Liu 1995, Liu and Claridge 19951 with the bin weather data for each building. Step 5: Calculate the campus consumption as the sum of consumption of all buildings. Step 6: Compare the simulated...

Liu, M.; Zhu, Y.; Claridge, D. E.

1996-01-01T23:59:59.000Z

333

Commercial thermal distribution systems, Final report for CIEE/CEC  

E-Print Network [OSTI]

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

Xu, T.

2011-01-01T23:59:59.000Z

334

ATLAS Nightly Build System Upgrade  

E-Print Network [OSTI]

The ATLAS Nightly Build System is a facility for automatic production of software releases. Being the major component of ATLAS software infrastructure, it supports more than 50 multi-platform branches of nightly releases and provides ample opportunities for testing new packages, for verifying patches to existing software, and for migrating to new platforms and compilers. The Nightly System testing framework runs several hundred integration tests of different granularity and purpose. The nightly releases are distributed and validated, and some are transformed into stable releases used for data processing worldwide. The first LHC long shutdown (2013-2015) activities will elicit increased load on the Nightly System as additional releases and builds are needed to exploit new programming techniques, languages, and profiling tools. This paper describes the plan of the ATLAS Nightly Build System Long Shutdown upgrade. It brings modern database and web technologies into the Nightly System, improves monitoring of nigh...

Dimitrov, G; The ATLAS collaboration; Simmons, B; Undrus, A

2013-01-01T23:59:59.000Z

335

Self-Correcting HVAC Controls Project Final Report  

SciTech Connect (OSTI)

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

336

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

E-Print Network [OSTI]

-1209(h) Office Hours: M-F 1-2p.m. Text: Heating, Ventilating, and Air Conditioning - Analysis and Design. -- Refrigeration and heating, ventilating and air-conditioning (HVAC) for comfort and industrial applications of the fundamentals of Heating, Ventilating, Air Conditioning, and Refrigeration as they relate to human comfort

Dyer, Bill

337

iPower: An Energy Conservation System for Intelligent Buildings by Wireless Sensor Networks  

E-Print Network [OSTI]

of energy consumption is spent on HVAC systems, which include heating, ventilating, air conditioning by HVAC systems is due to improper use of electric appliances. Therefore, how to exploit the context the electric appliances in the room through some power-line control devices. In this way, the iPower system can

Tseng, Yu-Chee

338

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

339

Duct leakage impacts on VAV system performance in California large commercial buildings  

SciTech Connect (OSTI)

The purpose of this study is to evaluate the variability of duct leakage impacts on air distribution system performance for typical large commercial buildings in California. Specifically, a hybrid DOE-2/TRNSYS sequential simulation approach was used to model the energy use of a low-pressure terminal-reheat variable-air-volume (VAV) HVAC system with six duct leakage configurations (tight to leaky) in nine prototypical large office buildings (representing three construction eras in three California climates where these types of buildings are common). Combined fan power for the variable-speed-controlled supply and return fans at design conditions was assumed to be 0.8 W/cfm. Based on our analyses of the 54 simulation cases, the increase in annual fan energy is estimated to be 40 to 50% for a system with a total leakage of 19% at design conditions compared to a tight system with 5% leakage. Annual cooling plant energy also increases by about 7 to 10%, but reheat energy decreases (about 3 to 10%). In combination, the increase in total annual HVAC site energy is 2 to 14%. The total HVAC site energy use includes supply and return fan electricity consumption, chiller and cooling tower electricity consumption, boiler electricity consumption, and boiler natural gas consumption. Using year 2000 average commercial sector energy prices for California ($0.0986/kWh and $7.71/Million Btu), the energy increases result in 9 to 18% ($7,400 to $9,500) increases in HVAC system annual operating costs. Normalized by duct surface area, the increases in annual operating costs are 0.14 to 0.18 $/ft{sup 2}. Using a suggested one-time duct sealing cost of $0.20 per square foot of duct surface area, these results indicate that sealing leaky ducts in VAV systems has a simple payback period of about 1.3 years. Even with total leakage rates as low as 10%, duct sealing is still cost effective. This suggests that duct sealing should be considered at least for VAV systems with 10% or more total duct leakage. The VAV system that we simulated had perfectly insulated ducts, and maintained constant static pressure in the ducts upstream of the VAV boxes and a constant supply air temperature at the airhandler. Further evaluations of duct leakage impacts should be carried out in the future after methodologies are developed to deal with duct surface heat transfer effects, to deal with airflows entering VAV boxes from ceiling return plenums (e.g., to model parallel fan-powered VAV boxes), and to deal with static pressure reset and supply air temperature reset strategies.

Wray, Craig P.; Matson, Nance E.

2003-10-01T23:59:59.000Z

340

Scalable Scheduling of Building Control Systems for Peak Demand Reduction  

E-Print Network [OSTI]

Behl, Rahul Mangharam and George J. Pappas Department of Electrical and Systems Engineering University operation of sub- systems such as heating, ventilating, air conditioning and refrigeration (HVAC&R) systems is fundamental for their efficient behavior, especially in elec- trical systems and the electric grid [1]. Peak

Pappas, George J.

Note: This page contains sample records for the topic "building hvac systems" 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

System/Building Tech Integration | Clean Energy | ORNL  

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

SystemBuilding Integration SHARE System Building Technologies Integration The buildings industry encompasses numerous designers, builders, construction materials and components...

342

Building Technologies Research and Integration Center Reducing the energy consumption of the nation's buildings is  

E-Print Network [OSTI]

2/21/2011 Building Technologies Research and Integration Center Reducing the energy consumption: systems (supermarket refrigeration, ground-source, CHP, multi-zone HVAC, wireless and other communications of the nation's buildings is essential for achieving a sustainable clean energy future and will be an enormous

Oak Ridge National Laboratory

343

Buildings, Commissioning, Efficiency, Comfort, and CO2  

E-Print Network [OSTI]

. Continuous commissioning and CC are registered trademarks of the Texas Engineering Experiment Station Commissioning of Existing Buildings Major International Activities ? IEA Annex 40 ?Commissioning of Buildings and HVAC Systems for Improved Energy... Performance? IEA Annex 47 ?Cost Effective Commissioning for Existing and Low Energy Buildings? Commissioning of Existing Buildings International Examples ? China ? to be added? Belgium ? to be added? Japan ? Akashi et al. Source: Mills et al. 2005 Source...

Claridge, D. E.

2006-01-01T23:59:59.000Z

344

Integrated Building Energy Systems Design Considering Storage Technologies  

E-Print Network [OSTI]

L ABORATORY Integrated Building Energy Systems Design7301 Integrated building energy systems design considering

Stadler, Michael

2009-01-01T23:59:59.000Z

345

Analysis of a hybrid UFAD and radiant hydronic slab HVAC system  

E-Print Network [OSTI]

speed, and the cooling tower supply water temperature set-operates in ‘free-cooling’ mode to supply cool water to thealso include a cooling system that can supply cool water to

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

2011-01-01T23:59:59.000Z

346

Co-Simulation of Detailed Whole Building with the Power System to Study Smart Grid Applications  

SciTech Connect (OSTI)

Modernization of the power system in a way that ensures a sustainable energy system is arguably one of the most pressing concerns of our time. Buildings are important components in the power system. First, they are the main consumers of electricity and secondly, they do not have constant energy demand. Conventionally, electricity has been difficult to store and should be consumed as it is generated. Therefore, maintaining the demand and supply is critical in the power system. However, to reduce the complexity of power models, buildings (i.e., end-use loads) are traditionally modeled and represented as aggregated “dumb” nodes in the power system. This means we lack effective detailed whole building energy models that can support requirements and emerging technologies of the smart power grid. To gain greater insight into the relationship between building energy demand and power system performance, it is important to constitute a co-simulation framework to support detailed building energy modeling and simulation within the power system to study capabilities promised by the modern power grid. This paper discusses ongoing work at Pacific Northwest National Laboratory and presents underlying tools and framework needed to enable co-simulation of building, building energy systems and their control in the power system to study applications such as demand response, grid-based HVAC control, and deployment of buildings for ancillary services. The optimal goal is to develop an integrated modeling and simulation platform that is flexible, reusable, and scalable. Results of this work will contribute to future building and power system studies, especially those related to the integrated ‘smart grid’. Results are also expected to advance power resiliency and local (micro) scale grid studies where several building and renewable energy systems transact energy directly. This paper also reviews some applications that can be supported and studied using the framework introduced to understand their implications before they can be successfully implemented in the power system.

Makhmalbaf, Atefe; Fuller, Jason C.; Srivastava, Viraj; Ciraci, Selim; Daily, Jeffrey A.

2014-12-24T23:59:59.000Z

347

Daylighting controls; Orphan of HVAC design  

SciTech Connect (OSTI)

This paper reports that in the array of strategies employed for energy-efficient design and retrofitting in commercial buildings, the use of daylighting controls is often overlooked or omitted. Thus, daylighting controls are a worthy but neglected orphan of the design process, stranded between the lighting designer, architect and engineer. Most daylighting analysis ignores HVAC effects, despite obvious interactions between windows, heat-from-lights, and thermal loads.

Rundquist, R.A. (R.A. Rundquist Associates Inc., Northampton, MA (US))

1991-11-01T23:59:59.000Z

348

Improving the Efficiency of Light-Duty Vehicle HVAC Systems using Zonal  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe U.S. Improving Fan System Performance a

349

Methodology to Analyze the Sensitivity of Building Energy Consumption to HVAC System Sensor Error  

E-Print Network [OSTI]

parameters. There are a total of eight scenarios considered in this simulation. The simulation tool was developed based on Excel. The control parameters examined include room temperature, cold deck temperature, hot deck temperature, pump pressure, and fan...

Ma, Liang

2012-02-14T23:59:59.000Z

350

Commissioning of Building HVAC Systems for Improved Energy Performance: A Summary of Annex 40 Results  

E-Print Network [OSTI]

( Japan, France, Canada, Belgium, Switzerland, Sweden, USA, Germany, Norway, Finland) took part as full members, observers participated from 4 other countries (The Netherlands, Korea, China, Hungary). The Annex is organized in 5 tasks according...

Visier, J. C.

2004-01-01T23:59:59.000Z

351

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

E-Print Network [OSTI]

Canada. Conference ACKNOWLEDGEMENTS This research was supported by the Assistant Secretary for Energy Efficiency and Renewable

Trcka, Marija

2010-01-01T23:59:59.000Z

352

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

E-Print Network [OSTI]

Canada. Conference ACKNOWLEDGEMENTS This research was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy,

Trcka, Marija

2010-01-01T23:59:59.000Z

353

Modeling and Optimal Control Algorithm Design for HVAC Systems in Energy Efficient Buildings  

E-Print Network [OSTI]

sun on the external sides of the walls in deriving the differential equations of the temperature distribution

Maasoumy, Mehdi

2014-01-01T23:59:59.000Z

354

Energy Savings Potential and RD&D Opportunities for Commercial Building HVAC Systems  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecord ofESPC ENABLE:2009 DOEDeploymentHenryEnergyDepartmentCommercial

355

US India Joint Center for Building Energy Research and Development (CBERD): Advanced HVAC Systems  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyTheTwo New Energyof Energy8,November 2012U.S.Department2USUS

356

Improving efficiency of a vehicle HVAC system with comfort modeling, zonal  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe U.S. Improving Fan System Performance a PumpingReduceddesign,

357

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

Broader source: Energy.gov (indexed) [DOE]

Let's start with a basic tenet: electric space heaters are less efficient than HVAC systems. I cannot replace my heating system with room heaters if I want to save money....

358

A Guide to Building Commissioning  

SciTech Connect (OSTI)

Commissioning is the process of verifying that a building's heating, ventilation, and air conditioning (HVAC) and lighting systems perform correctly and efficiently. Without commissioning, system and equipment problems can result in higher than necessary utility bills and unexpected and costly equipment repairs. This report reviews the benefits of commissioning, why it is a requirement for Leadership in Energy and Environmental Design (LEED) certification, and why building codes are gradually adopting commissioning activities into code.

Baechler, Michael C.

2011-09-01T23:59:59.000Z

359

Introducing Energy Management Systems into Smaller Facilities  

E-Print Network [OSTI]

Many small and medium sized commercial buildings are energy hogs. Typically they were designed and built to meet low first cost criteria. Control system capability is usually minimal, insulation is thin, glass areas are large, and HVAC equipment...

Lawrence, J. A.

1983-01-01T23:59:59.000Z

360

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

SciTech Connect (OSTI)

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

Note: This page contains sample records for the topic "building hvac systems" 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

Top: Rudder Tower is one of 24 Texas A&M buildings undergoing energy efficiency upgrades.  

E-Print Network [OSTI]

Top: Rudder Tower is one of 24 Texas A&M buildings undergoing energy efficiency upgrades. Bottom control energy costs and provide a greener, more energy efficient campus for a more environmentally' building automation system (BAS) will improve energy efficiency and enable better HVAC control in buildings

362

Advanced control strategies for HVAC&R systems—An overview: Part II: Soft and fusion control  

SciTech Connect (OSTI)

A chronological overview of the advanced control strategies for HVAC&R is presented. The overview focuses on hard-computing or control techniques, such as proportional-integral-derivative, optimal, nonlinear, adaptive, and robust; soft-computing or control techniques, such as neural networks, fuzzy logic, genetic algorithms; and the fusion or hybrid of hard and soft control techniques. Part I focused on hardcontrol strategies; Part II focuses on soft and fusion control and some future directions in HVA&R research. This overview is not intended to be an exhaustive survey on this topic, and any omissions of other works is purely unintentional.

D. Subbaram Naidu; Craig G. Rieger

2011-04-01T23:59:59.000Z

363

Integrating Renewable Energy Systems in Buildings (Presentation)  

SciTech Connect (OSTI)

This presentation on integrating renewable energy systems into building was presented at the August, 2011 ASHRAE Region IX CRC meetings.

Hayter, S. J.

2011-08-01T23:59:59.000Z

364

Building International Emergency Management Systems | National...  

National Nuclear Security Administration (NNSA)

Building International Emergency Management Systems | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

365

A DISTRIBUTED INTELLIGENT AUTOMATED DEMAND RESPONSE BUILDING MANAGEMENT SYSTEM  

SciTech Connect (OSTI)

The goal of the 2.5 year Distributed Intelligent Automated Demand Response (DIADR) project was to reduce peak electricity load of Sutardja Dai Hall at UC Berkeley by 30% while maintaining a healthy, comfortable, and productive environment for the occupants. We sought to bring together both central and distributed control to provide “deep” demand response1 at the appliance level of the building as well as typical lighting and HVAC applications. This project brought together Siemens Corporate Research and Siemens Building Technology (the building has a Siemens Apogee Building Automation System (BAS)), Lawrence Berkeley National Laboratory (leveraging their Open Automated Demand Response (openADR), Auto-­?Demand Response, and building modeling expertise), and UC Berkeley (related demand response research including distributed wireless control, and grid-­?to-­?building gateway development). Sutardja Dai Hall houses the Center for Information Technology Research in the Interest of Society (CITRIS), which fosters collaboration among industry and faculty and students of four UC campuses (Berkeley, Davis, Merced, and Santa Cruz). The 141,000 square foot building, occupied in 2009, includes typical office spaces and a nanofabrication laboratory. Heating is provided by a district heating system (steam from campus as a byproduct of the campus cogeneration plant); cooling is provided by one of two chillers: a more typical electric centrifugal compressor chiller designed for the cool months (Nov-­? March) and a steam absorption chiller for use in the warm months (April-­?October). Lighting in the open office areas is provided by direct-­?indirect luminaries with Building Management System-­?based scheduling for open areas, and occupancy sensors for private office areas. For the purposes of this project, we focused on the office portion of the building. Annual energy consumption is approximately 8053 MWh; the office portion is estimated as 1924 MWh. The maximum peak load during the study period was 1175 kW. Several new tools facilitated this work, such as the Smart Energy Box, the distributed load controller or Energy Information Gateway, the web-­?based DR controller (dubbed the Central Load-­?Shed Coordinator or CLSC), and the Demand Response Capacity Assessment & Operation Assistance Tool (DRCAOT). In addition, an innovative data aggregator called sMAP (simple Measurement and Actuation Profile) allowed data from different sources collected in a compact form and facilitated detailed analysis of the building systems operation. A smart phone application (RAP or Rapid Audit Protocol) facilitated an inventory of the building’s plug loads. Carbon dioxide sensors located in conference rooms and classrooms allowed demand controlled ventilation. The extensive submetering and nimble access to this data provided great insight into the details of the building operation as well as quick diagnostics and analyses of tests. For example, students discovered a short-­?cycling chiller, a stuck damper, and a leaking cooling coil in the first field tests. For our final field tests, we were able to see how each zone was affected by the DR strategies (e.g., the offices on the 7th floor grew very warm quickly) and fine-­?tune the strategies accordingly.

Auslander, David; Culler, David; Wright, Paul; Lu, Yan; Piette, Mary

2013-12-30T23:59:59.000Z

366

Columbia Water and Light- Residential HVAC Rebate Program  

Broader source: Energy.gov [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...

367

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

368

The System Approach to Thermal Performance - Control of Condensation and Mold in Buildings  

E-Print Network [OSTI]

sealing which controls the leakage of air and moisture vapor into the building envelope. New soft foam insulation is now being used in retrofit and new buildings to solve mold and moisture condensation problems. At the same time downsizing of HVAC...

Nicklas, R.

2002-01-01T23:59:59.000Z

369

Development and Application of a Procedure to Estimate Overall Building and Ventilation Parameters from Monitored Commercial Building Energy Use  

E-Print Network [OSTI]

for CV system, VAV system and building load. 59 5.3 Monthly EDE for CV system, VAV system and building load 61 5.4 Monthly MEIc and MEIh for CV system, VAV system and building load.... 61 XU FIGURE Page 5.5 Multistep regression results with monitored... for for the BUS building pre and post retrofit 71 5.9 Monthly MEIc and MEIh for the BUS building pre and post retrofit 71 . 5.10 Monthly outdoor dry-bulb temperature and relative humidity conditions under which the HVAC systems were analyzed for the CSB building...

Deng, Song

370

A standard simulation testbed for the evaluation of control algorithms & strategies related to variable air volume HVAC systems  

E-Print Network [OSTI]

The parameters for a dynamic, computer simulation model were developed. The parameters characterize the physical and geometric properties of a building shell, the internal and external building loads, the buildings secondary ...

DeSimone, Mark

1995-01-01T23:59:59.000Z

371

Development of Temperature and Humidity-Based Indicators for Diagnosing Problems in Low Tonnage, Split System Air Conditioners  

E-Print Network [OSTI]

of HVAC systems for building optimization, fault detection and diagnosis. October. Finland: Technical Research Center of Finland, Laboratory of Heating and Ventilation, B. 0. Box 206 (Lampomiehenkuja 3) 02150 ESPOO. Kaler. G. 1988. Expert system...

Watt, J. B.; O'Neal, D. L.; Haberl, J. S.

1998-01-01T23:59:59.000Z

372

A Modular Building Controls Virtual Test Bed for the Integrations of Heterogeneous Systems  

SciTech Connect (OSTI)

This paper describes the Building Controls Virtual Test Bed (BCVTB) that is currently under development at Lawrence Berkeley National Laboratory. An earlier prototype linked EnergyPlus with controls hardware through embedded SPARK models and demonstrated its value in more cost-effective envelope design and improved controls sequences for the San Francisco Federal Building. The BCVTB presented here is a more modular design based on a middleware that we built using Ptolemy II, a modular software environment for design and analysis of heterogeneous systems. Ptolemy II provides a graphical model building environment, synchronizes the exchanged data and visualizes the system evolution during run-time. Our additions to Ptolemy II allow users to couple to Ptolemy II a prototype version of EnergyPlus,MATLAB/Simulink or other simulation programs for data exchange during run-time. In future work we will also implement a BACnet interface that allows coupling BACnet compliant building automation systems to Ptolemy II. We will present the architecture of the BCVTB and explain how users can add their own simulation programs to the BCVTB. We will then present an example application in which the building envelope and the HVAC system was simulated in EnergyPlus, the supervisory control logic was simulated in MATLAB/Simulink and Ptolemy II was used to exchange data during run-time and to provide realtime visualization as the simulation progresses.

Wetter, Michael; Wetter, Michael; Haves, Philip

2008-06-30T23:59:59.000Z

373

E-Print Network 3.0 - air conditioning hvac Sample Search Results  

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

systems play an important role in providing comfort in residential, commercial... of Heating, Refrigerating, and Air-Conditioning Engineers. Batterman S. and Burge H. 1995. "HVAC...

374

Energy Management Systems Package for Small Commercial Buildings...  

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

Energy Management Systems Package for Small Commercial Buildings Energy Management Systems Package for Small Commercial Buildings Commercial Buildings Integration Project for the...

375

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

Broader source: Energy.gov [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?"

376

UNIT NUMBER: C-304 Buildina/HVAC Picina Svstem- Soil Backfill  

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

63 UNIT NUMBER: C-304 BuildinaHVAC Picina Svstem- Soil Backfill UNIT NAME: REGULATORY STATUS: AOC .OCATION: Adjacent to C-304 building APPROXIMATE DIMENSIONS: 100 feet wide by 200...

377

HVAC Market Study:  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky9, 2010 The meeting wasEngineering andHQHSI BestscientistsHVAC

378

Modeling of Residential Buildings and Heating Systems  

E-Print Network [OSTI]

-zone building model is used in each case. A model of the heating system is also used for the multi-storey building. Both co-heating and tracer gas measurements are used in order to adjust the parameters of each building model. A complete monitoring...

Masy, G.; Lebrun, J.

2004-01-01T23:59:59.000Z

379

A Distributed Facilities Automation System For IBM Buildings  

E-Print Network [OSTI]

to the host would be via an IBM-supplied local communications network protocol. Remote appli cations would include process control, security, energy manage ment, facilities automation or any other automation application. The remote systems... of these areas which are affected are: - HVAC - Chemical Processes Control - Utilities Generation - Tank Farm Monitoring Resource Management - Solvent Supply and Recovery Systems - DI Water Distribution - Sewage and Waste Treatment Plant Control...

Houle, W. D. Sr.

380

Advanced Commercial Buildings Research; Electricity, Resources, & Building Systems Integration (Fact Sheet)  

SciTech Connect (OSTI)

Factsheet describing the Advanced Commercial Buildings Research group within NREL's Electricity, Resources, and Buildings Systems Integration Center.

Not Available

2009-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "building hvac systems" 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

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

382

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

383

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.

384

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

SciTech Connect (OSTI)

It is commonly assumed that efforts to simultaneously develop energy efficient building technologies and to improve indoor environmental quality (IEQ) are unfeasible. The primary reason for this is that IEQ improvements often require additional ventilation that is costly from an energy standpoint. It is currently thought that health and productivity in work and learning environments requires adequate, if not superior, IEQ. Despite common assumptions, opportunities do exist to design building systems that provide improvements in both energy efficiency and IEQ. This report outlines the selection of a heating, ventilation, and air conditioning (HVAC) system to be used in demonstrating such an opportunity in a field study using relocatable school classrooms. Standard classrooms use a common wall mounted heat pump HVAC system. After reviewing alternative systems, a wall-mounting indirect/direct evaporative cooling system with an integral hydronic gas heating is selected. The anticipated advantages of this system include continuous ventilation of 100 percent outside air at or above minimum standards, projected cooling energy reductions of about 70 percent, inexpensive gas heating, improved airborne particle filtration, and reduced peak load electricity use. Potential disadvantages include restricted climate regions and possible increases in indoor relative humidity levels under some conditions.

Apte, Michael G.; Delp, Woody W.; Diamond, Richard C.; Hodgson, Alfred T.; Kumar, Satish; Rainer, Leo I.; Shendell, Derek G.; Sullivan, Doug P.; Fisk, William J.

2001-10-11T23:59:59.000Z

385

"We retrofitted mechanical systems in 8 buildings!"  

E-Print Network [OSTI]

"We retrofitted mechanical systems in 8 buildings!" LOW INTEREST RATE LOANS AVAILABLE NOW! County of Contra Costa California Energy Commission Apply Today! See Case Study on Back of Flyer "Our low interest and cooling systems in eight buildings. The energy efficient measures include replacing pneumatic controls

386

Modeling of Solar-Powered Single-Effect Absorption Cooling System and Supermarket Refrigeration/HVAC System.  

E-Print Network [OSTI]

??This thesis consists of two different research problems. In the first one, the aim is to model and simulate a solar-powered, single-effect, absorption refrigeration system… (more)

Bahman, Ammar

2011-01-01T23:59:59.000Z

387

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

E-Print Network [OSTI]

Fouling of heat exchangers used in heating, ventilating, and air conditioning (HVAC) systems is important contributor to overall energy use and peak electric demand. Furthermore, the location of heat exchangers in HVAC systems means that if bioaerosols containing bacteria, fungi, and viruses deposit on heat

388

Control System Commissioning for Enhanced Building Operations  

E-Print Network [OSTI]

This paper highlights the import role control systems play in the operation of modern buildings and describes ways to improve the final stage of commissioning. We also describe practical issues associated with modern IT-oriented control systems...

Salsbury, T. I.; Singhal, A.

2003-01-01T23:59:59.000Z

389

Building operating systems services: An architecture for programmable buildings.  

E-Print Network [OSTI]

7.3.2 Building Performance Analysis . . . . . . 7.4 RelatedWork 2.1 Building Physical Design . . . . . . . . . .3.2.6 Building Applications . . . . . . . . . . .

Dawson-Haggerty, Stephen

2014-01-01T23:59:59.000Z

390

Using Building Control System for Commissioning  

E-Print Network [OSTI]

France-USA Finland France Japan USA Netherlands Main End-Users BOp MC ES BD BOp BI BOp MC ES BOp BOw BS BOp ES BOp MC ES MI CA BOp MC ES BOp Type building Large commercial buildings Any types Medium and large commercial... 34, VTT, Finland, ISBN 951-38-5725-5. [4] Castro, N.S., Galler, M. A., Bushby, S. T. ?A Test Shell for Developing Automated Commissioning Tools for BACnet Systems? National Conference on Building Commissioning, 2003. ...

Vaezi-Nejad, H.; Salsbury, T.; Choiniere, D.

2004-01-01T23:59:59.000Z

391

Building America Expert Meeting: Achieving the Best Installed...  

Energy Savers [EERE]

(Fact Sheet) Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners Building America Expert Meeting:...

392

Geothermal System Overview ASHRAE Headquarters Building  

E-Print Network [OSTI]

Geothermal System Overview ASHRAE Headquarters Building Dennis Meyer Director of Commercial Sales center #12;Geothermal Loop · Vertical closed-loop ­ 12 bores at 400 feet deep with 1.25" HDPE ­ Boreholes enhanced grout · Standard 2-pipe building loop with VFD pump #12;#12;#12;#12;ClimateMaster Geothermal

Oak Ridge National Laboratory

393

3D World Building System  

SciTech Connect (OSTI)

This video provides an overview of the Sandia National Laboratories developed 3-D World Model Building capability that provides users with an immersive, texture rich 3-D model of their environment in minutes using a laptop and color and depth camera.

None

2013-10-30T23:59:59.000Z

394

3D World Building System  

ScienceCinema (OSTI)

This video provides an overview of the Sandia National Laboratories developed 3-D World Model Building capability that provides users with an immersive, texture rich 3-D model of their environment in minutes using a laptop and color and depth camera.

None

2014-02-26T23:59:59.000Z

395

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...

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

2007-01-01T23:59:59.000Z

396

MODELING PARTICLE DEPOSITION ON HVAC HEAT JA Siegel1,3*  

E-Print Network [OSTI]

. Of Mechanical Engineering, University of California, Berkeley, CA, USA 2 Dept. Of Civil and Environmental degradation for heating, ventilating, and air conditioning (HVAC) systems. Particulate fouling of indoor fin: JASiegel@lbl.gov Proceedings: Indoor Air 2002 521 #12;HEAT EXCHANGER DESCRIPTION The HVAC heat exchangers

Siegel, Jeffrey

397

Building America Case Study: Evaluating Through-Wall Air Transfer Fans, Pittsburgh, Pennsylvania (Fact Sheet)  

SciTech Connect (OSTI)

In this project, Building America team IBACOS performed field testing in a new construction unoccupied test house in Pittsburgh, Pennsylvania to evaluate heating, ventilating, and air conditioning (HVAC) distribution systems during heating, cooling, and midseason conditions. Four air-based HVAC distribution systems were assessed:-a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, a system with transfer fans to the bedrooms, and a system with no ductwork to the bedrooms. The relative ability of each system was considered with respect to relevant Air Conditioning Contractors of America and ASHRAE standards for house temperature uniformity and stability, respectively.

Not Available

2014-10-01T23:59:59.000Z

398

Embedded Commissioning for Building Design  

E-Print Network [OSTI]

Airflow (cfm) Fan CFM (total / return / outside / discharge) Static pres- sure Static pres- sure (IN, W, G) Static pressure (elements) ????? Fan full load VFD Effi- ciency (%) Fan noise class Required toler.... Currently, it is rapidly becoming the per- formance verification tool in HVAC design and LEED (Leadership in Energy and Environmental Design) certification in the USA. Building commissioning is a multi-phase process that ensures the interacting systems...

Akin, O.; Turkaslan-Bulbul, M. T.; Gursel, I.; Garrett, J. H.; Akinci, B.; Wang, H.

2004-01-01T23:59:59.000Z

399

Pedernales Electric Cooperative- HVAC Rebate Program  

Broader source: Energy.gov [DOE]

Pedernales Electric Cooperative offers equipment rebates to members who install energy efficient HVAC equipment. Eligible equipment includes:...

400

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

Note: This page contains sample records for the topic "building hvac systems" 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

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

402

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

403

Energy Savings Through Improved Mechanical Systems and Building...  

Office of Environmental Management (EM)

Energy Savings Through Improved Mechanical Systems and Building Envelope Technologies (DE-FOA-0000621) Energy Savings Through Improved Mechanical Systems and Building Envelope...

404

Small- and Medium-Size Building Automation and Control System...  

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

Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Emerging...

405

Advanced Framing Systems and Packages - Building America Top...  

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

Advanced Framing Systems and Packages - Building America Top Innovation Advanced Framing Systems and Packages - Building America Top Innovation This photo shows advanced framing...

406

Balancing Hydronic Systems in Multifamily Buildings  

SciTech Connect (OSTI)

In multifamily hydronic systems, temperature imbalance may be caused by undersized piping, improperly adjusted balancing valves, inefficient water temperature and flow levels, and owner/occupant interaction with the boilers, distribution and controls. The effects of imbalance include tenant discomfort, higher energy use intensity and inefficient building operation. This paper explores cost-effective distribution upgrades and balancing measures in multifamily hydronic systems, providing a resource to contractors, auditors, and building owners on best practices to improve tenant comfort and lower operating costs. The research was conducted by The Partnership for Advanced Residential Retrofit (PARR) in conjunction with Elevate Energy. The team surveyed existing knowledge on cost-effective retrofits for optimizing distribution in typical multifamily hydronic systems, with the aim of identifying common situations and solutions, and then conducted case studies on two Chicago area buildings with known balancing issues in order to quantify the extent of temperature imbalance. At one of these buildings a booster pump was installed on a loop to an underheated wing of the building. This study found that unit temperature in a multifamily hydronic building can vary as much as 61 degrees F, particularly if windows are opened or tenants use intermittent supplemental heating sources like oven ranges. Average temperature spread at the building as a result of this retrofit decreased from 22.1 degrees F to 15.5 degrees F.

Ruch, R.; Ludwig, P.; Maurer, T.

2014-07-01T23:59:59.000Z

407

Building Technologies Office: 179D DOE Calculator  

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

or 0.60ft for a partially qualifying property for envelope, heating, ventilating, and air conditioning (HVAC), or lighting improvements. In addition, a building may qualify...

408

Building integrated photovoltaic systems analysis: Preliminary report  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory (NREL) has estimated that the deployment of photovoltaics (PV) in the commercial buildings sector has the potential to contribute as much as 40 gigawatts peak electrical generation capacity and displace up to 1.1 quads of primary fuel use. A significant portion of this potential exists for smaller buildings under 25,000 square feet (2,300 square meters) in size or two stories or less, providing a strong cross over potential for residential applications as well. To begin to achieve this potential, research is needed to define the appropriate match of PV systems to energy end-uses in the commercial building sector. This report presents preliminary findings for a technical assessment of several alternative paths to integrate PV with building energy systems.

none,

1993-08-01T23:59:59.000Z

409

Energy Savings Modeling of Standard Commercial Building Re-tuning Measures: Large Office Buildings  

SciTech Connect (OSTI)

Today, many large commercial buildings use sophisticated building automation systems (BASs) to manage a wide range of building equipment. While the capabilities of BASs have increased over time, many buildings still do not fully use the BAS's capabilities and are not properly commissioned, operated or maintained, which leads to inefficient operation, increased energy use, and reduced lifetimes of the equipment. This report investigates the energy savings potential of several common HVAC system retuning measures on a typical large office building prototype model, using the Department of Energy's building energy modeling software, EnergyPlus. The baseline prototype model uses roughly as much energy as an average large office building in existing building stock, but does not utilize any re-tuning measures. Individual re-tuning measures simulated against this baseline include automatic schedule adjustments, damper minimum flow adjustments, thermostat adjustments, as well as dynamic resets (set points that change continuously with building and/or outdoor conditions) to static pressure, supply air temperature, condenser water temperature, chilled and hot water temperature, and chilled and hot water differential pressure set points. Six combinations of these individual measures have been formulated - each designed to conform to limitations to implementation of certain individual measures that might exist in typical buildings. All of these measures and combinations were simulated in 16 cities representative of specific U.S. climate zones. The modeling results suggest that the most effective energy savings measures are those that affect the demand-side of the building (air-systems and schedules). Many of the demand-side individual measures were capable of reducing annual HVAC system energy consumption by over 20% in most cities that were modeled. Supply side measures affecting HVAC plant conditions were only modestly successful (less than 5% annual HVAC energy savings for most cities for all measures). Combining many of the retuning measures revealed deep savings potential. Some of the more aggressive combinations revealed 35-75% reductions in annual HVAC energy consumption, depending on climate and building vintage.

Fernandez, Nicholas; Katipamula, Srinivas; Wang, Weimin; Huang, Yunzhi; Liu, Guopeng

2012-06-01T23:59:59.000Z

410

Indoor environmental quality and ventilation in U.S. office buildings: A view of current issues  

SciTech Connect (OSTI)

Much of the current focus on indoor environmental quality and ventilation in US office buildings is a response to sick building syndrome and occupant complaints about building-related health symptoms, poor indoor air quality, and thermal discomfort. The authors know that serious ``sick-building`` problems occur in a significant number of US office buildings and that a significant proportion of the occupants in many normal (non-sick) buildings report building-related health symptoms. Concerns about the health effects of environmental tobacco smoke have also focused attention on the indoor environment. The major responses of industry and governments, underway at the present time, are to restrict smoking in offices, to attempt to reduce the emissions of indoor pollutants, and to improve the operation of heating, ventilating and air conditioning (HVAC) systems. Better air filtration, improved HVAC commissioning and maintenance, and increased provisions for individual control of HVAC are some of the improvements in HVAC that are currently being, evaluated. In the future, the potential for improved productivity and reduced airborne transmission of infectious disease may become the major driving force for improved indoor environments.

Fisk, W.J.

1994-11-01T23:59:59.000Z

411

High-performance commercial building systems  

SciTech Connect (OSTI)

This report summarizes key technical accomplishments resulting from the three year PIER-funded R&D program, ''High Performance Commercial Building Systems'' (HPCBS). The program targets the commercial building sector in California, an end-use sector that accounts for about one-third of all California electricity consumption and an even larger fraction of peak demand, at a cost of over $10B/year. Commercial buildings also have a major impact on occupant health, comfort and productivity. Building design and operations practices that influence energy use are deeply engrained in a fragmented, risk-averse industry that is slow to change. Although California's aggressive standards efforts have resulted in new buildings designed to use less energy than those constructed 20 years ago, the actual savings realized are still well below technical and economic potentials. The broad goal of this program is to develop and deploy a set of energy-saving technologies, strategies, and techniques, and improve processes for designing, commissioning, and operating commercial buildings, while improving health, comfort, and performance of occupants, all in a manner consistent with sound economic investment practices. Results are to be broadly applicable to the commercial sector for different building sizes and types, e.g. offices and schools, for different classes of ownership, both public and private, and for owner-occupied as well as speculative buildings. The program aims to facilitate significant electricity use savings in the California commercial sector by 2015, while assuring that these savings are affordable and promote high quality indoor environments. The five linked technical program elements contain 14 projects with 41 distinct R&D tasks. Collectively they form a comprehensive Research, Development, and Demonstration (RD&D) program with the potential to capture large savings in the commercial building sector, providing significant economic benefits to building owners and health and performance benefits to occupants. At the same time this program can strengthen the growing energy efficiency industry in California by providing new jobs and growth opportunities for companies providing the technology, systems, software, design, and building services to the commercial sector. The broad objectives across all five program elements were: (1) To develop and deploy an integrated set of tools and techniques to support the design and operation of energy-efficient commercial buildings; (2) To develop open software specifications for a building data model that will support the interoperability of these tools throughout the building life-cycle; (3) To create new technology options (hardware and controls) for substantially reducing controllable lighting, envelope, and cooling loads in buildings; (4) To create and implement a new generation of diagnostic techniques so that commissioning and efficient building operations can be accomplished reliably and cost effectively and provide sustained energy savings; (5) To enhance the health, comfort and performance of building occupants. (6) To provide the information technology infrastructure for owners to minimize their energy costs and manage their energy information in a manner that creates added value for their buildings as the commercial sector transitions to an era of deregulated utility markets, distributed generation, and changing business practices. Our ultimate goal is for our R&D effort to have measurable market impact. This requires that the research tasks be carried out with a variety of connections to key market actors or trends so that they are recognized as relevant and useful and can be adopted by expected users. While some of this activity is directly integrated into our research tasks, the handoff from ''market-connected R&D'' to ''field deployment'' is still an art as well as a science and in many areas requires resources and a timeframe well beyond the scope of this PIER research program. The TAGs, PAC and other industry partners have assisted directly in this effort

Selkowitz, Stephen

2003-10-01T23:59:59.000Z

412

Building automation systems (BAS) are concerned with control and monitoring of buildings, while aiming to  

E-Print Network [OSTI]

Building automation systems (BAS) are concerned with control and monitoring of buildings, while alarm systems or physical access control), · control the climate in the building/supervise and control operating and energy costs Realization and Experiences with a Low-Cost Building Automation Security Testbed

Behnke, Sven

413

Recent Developments of the Modelica "Buildings" Library for Building Energy and Control Systems  

E-Print Network [OSTI]

Recent Developments of the Modelica "Buildings" Library for Building Energy and Control Systems 94720, USA Abstract At the Modelica 2009 conference, we introduced the Buildings library, a freely develop an open-source Modelica library for building en- ergy and control systems. The library is freely

414

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

415

Green Building Certification Systems Requirement for New Federal...  

Energy Savers [EERE]

greenblgcert.docx More Documents & Publications EA-1991: Final Environmental Assessment Green Building Certification Systems Requirement for New Federal Buildings and Major...

416

Green Building Certification Systems Requirement for New Federal...  

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

CFR Parts 433, 435 and 436. greenblgcertcompare2014.docx More Documents & Publications Green Building Certification Systems Requirement for New Federal Buildings and Major...

417

Monitoring Building Systems for Schedule Compliance  

SciTech Connect (OSTI)

As Pacific Northwest National Laboratory (PNNL) initiated a Core Business Hours program, it became a challenge to ensure that the hundreds of systems campus wide were operating within their programmed schedules. Therefore, a collaborative exchange between PNNL operations and PNNL researchers developing the Decision Support for Operations and Maintenance (DSOM) software package was initiated to create a tool to solve this problem. This new DSOM tool verifies systems are operating within scheduled operation times by polling Building Automation and Control Network (BACnet) identifiers of systems’ on/off or command statuses. The tool records the time spent in operation state (ON) and totalizes each system over a rolling 7-day period, highlighting systems that are running over the scheduled hours. This snapshot view allows building management to look quickly at the entire campus to ensure that systems are not operating beyond their scheduled hours.

Jensen, Andrew M.; Belew, Shan T.

2013-02-19T23:59:59.000Z

418

Web-based energy information systems for energy management and demand response in commercial buildings  

SciTech Connect (OSTI)

Energy Information Systems (EIS) for buildings are becoming widespread in the U.S., with more companies offering EIS products every year. As a result, customers are often overwhelmed by the quickly expanding portfolio of EIS feature and application options, which have not been clearly identified for consumers. The object of this report is to provide a technical overview of currently available EIS products. In particular, this report focuses on web-based EIS products for large commercial buildings, which allow data access and control capabilities over the Internet. EIS products combine software, data acquisition hardware, and communication systems to collect, analyze and display building information to aid commercial building energy managers, facility managers, financial managers and electric utilities in reducing energy use and costs in buildings. Data types commonly processed by EIS include energy consumption data; building characteristics; building system data, such as heating, ventilation, and air-conditioning (HVAC) and lighting data; weather data; energy price signals; and energy demand-response event information. This project involved an extensive review of research and trade literature to understand the motivation for EIS technology development. This study also gathered information on currently commercialized EIS. This review is not an exhaustive analysis of all EIS products; rather, it is a technical framework and review of current products on the market. This report summarizes key features available in today's EIS, along with a categorization framework to understand the relationship between EIS, Energy Management and Control Systems (EMCSs), and similar technologies. Four EIS types are described: Basic Energy Information Systems (Basic-EIS); Demand Response Systems (DRS); Enterprise Energy Management (EEM); and Web-based Energy Management and Control Systems (Web-EMCS). Within the context of these four categories, the following characteristics of EIS are discussed: Metering and Connectivity; Visualization and Analysis Features; Demand Response Features; and Remote Control Features. This report also describes the following technologies and the potential benefits of incorporating them into future EIS products: Benchmarking; Load Shape Analysis; Fault Detection and Diagnostics; and Savings Analysis.

Motegi, Naoya; Piette, Mary Ann; Kinney, Satkartar; Herter, Karen

2003-04-18T23:59:59.000Z

419

Building America Best Practices Series Volume 15: 40% Whole-House...  

Energy Savers [EERE]

More Documents & Publications Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder Building America Technology...

420

Building America Whole-House Solutions for New Homes: David Weekely...  

Office of Environmental Management (EM)

TX More Documents & Publications Building America Whole-House Solutions for New Homes: HVAC Design Strategy for a Hot-Humid Production Builder Building America Whole-House...

Note: This page contains sample records for the topic "building hvac systems" 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

Model Predictive Control of Regulation Services from Commercial Buildings to the Smart Grid  

E-Print Network [OSTI]

Services from Commercial Buildings to the Smart Grid Mehdicommercial building hvac fan as ancillary service for smartbuildings flexibility can be utilized for frequency regulation provision in the smart

Maasoumy, Mehdi

2014-01-01T23:59:59.000Z

422

Are CHP Systems Ready for Commercial Buildings?  

SciTech Connect (OSTI)

This paper highlights challenges associated with integration of CHP systems with existing buildings and maintaining their performance over time. The paper also identifies key research and development needs to address the challenges, so that CHP technologies can deliver the promised performance and reach their full potential market penetration.

Katipamula, Srinivas; Brambley, Michael R.; Zaltash, Abdi; Sands, Jim

2005-06-27T23:59:59.000Z

423

PV Integration by Building Energy Management System  

E-Print Network [OSTI]

. However, to validate global control algorithms, a simulator capable of interoperating with energy[kWh]. Econs (k) Total energy consumed by the load [kWh]. E (i, k) Energy consumed by the service i duringPV Integration by Building Energy Management System Rim.Missaoui¹, Ghaith.Warkozek¹, Seddik. Bacha

Boyer, Edmond

424

D-Zero HVAC Heat Pump Controls  

SciTech Connect (OSTI)

This engineering note documents the integration of Dzero Heat Pump 1 through Heat Pump 15 into the cryo/gas process control system commonly referred to as the cryo control system. Heat pumps 1 through 15 control the ambient air temperature on the 3rd, 5th, and 6th floor office areas at Dzero. The entire Johnson HVAC control system was replaced with a Siemens control system in 1999 leaving behind the 15 heat pumps with stand-alone Johnson controllers. Now, these 15 heat pump Johnson controllers are being replaced with small stand alone Beckhoff BC9000 controllers. The Beckhoff BC9000 controllers are network able into the existing Intellution control system. The Beckhoff BC9000 controllers use the cryo private Ethernet network and an OPC driver to get data into the Intellution SCADA node databases. The BC9000 is also programmed over this same Ethernet network.

Markley, Dan; /Fermilab

2004-04-14T23:59:59.000Z

425

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

426

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

427

Department of Environmental Conservation, University of Massachusetts-Amherst Concentration in Building Systems 1  

E-Print Network [OSTI]

systems but encompasses specialized training in fields such as green building, structural timber design sensitive building materials & systems (green building); wood-concrete composite systems; innovative in Building Systems 1 Environmental Conservation Graduate Program Building Systems Concentration A

Schweik, Charles M.

428

Whole-building systems integration laboratory survey  

SciTech Connect (OSTI)

This report was prepared for the Pacific Northwest Laboratory as a subcontracted activity by the Research Management Foundation of the American Consulting Engineers Council. The objective of the survey reported herein was to independently assess the need for a Building System Integration Laboratory from the viewpoint of academicians in the field of building science. The subcontractor-developed questionnaire was sent to 200 professors of architecture and engineering at US universities. In view of this diverse population, the 10% rate of return on the questionnaire was considered acceptable. Although the responses probably do not reflect an unbiased summary of the collective perceptions of the original population surveyed, they do provide a valid insight into the interests and concerns of the academic community with respect to building sciences issues.

Crawley, D.B. (American Consulting Engineers Council, Washington, DC (USA). Research and Management Foundation)

1989-09-01T23:59:59.000Z

429

The dynamics of 'systems building' : An analysis of process mutations  

E-Print Network [OSTI]

This thesis investigates systems building in architecture. As the systems approach is an organized process for problem solving, the understanding of structural and functional relationships is essential. As systems building ...

Paul, Rathindra Jurg

1984-01-01T23:59:59.000Z

430

Sub-metering to Electricity Use in Large-scale Commercial Buildings  

E-Print Network [OSTI]

;?#0;? Practice??Project example #0;?#0;? Use of data??Analysis Software Sub-metering and statistics to electricity use in commercial buildings 8 Method of sub-metering Whole electric power consumption of a building Hvac system Heating Circulating pump Oter... systems and equipments Equipments on Socket Special function room Electrically driven heating equipment Chiller Fan of cooling tower Chilled pump cooling pump Air hand unit Fresh air hand unit Fan coil unit Air conditioner Heating water system drinking...

Yuan, W.

2006-01-01T23:59:59.000Z

431

Critical Simulation Based Evaluation of Thermally Activated Building Systems (TABS) Design Models  

E-Print Network [OSTI]

building systems for low energy buildings: System analysismeasurement of six low energy buildings in different partspointed out that low energy buildings may under- perform

Basu, Chandrayee

2012-01-01T23:59:59.000Z

432

The hydraulics of exchange flow between adjacent confined building zones Saleh Nabi*, M.R. Flynn  

E-Print Network [OSTI]

current reflects from the end wall and propagates back toward the opening in the form of an internal bore the exchange of hot and cold air between the inside and outside of a building and between different zones for the design of HVAC (heating, ventilation, and air conditioning) systems or for increasing the efficiency

Flynn, Morris R.

433

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...

Zheng, M.; Pan, S.

2007-01-01T23:59:59.000Z

434

Building America Top Innovations Hall of Fame Profile … Integration of HVAC System Design with Simplified Duct Distribution  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd:June 2015 < prev next >research team IBACOS worked with

435

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

Broader source: Energy.gov (indexed) [DOE]

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...

436

Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty...  

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

Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications 2012 DOE...

437

Energy Department Releases Roadmaps on HVAC Technologies, Water...  

Energy Savers [EERE]

Energy Department Releases Roadmaps on HVAC Technologies, Water Heating, Appliances, and Low-GWP Refrigerants Energy Department Releases Roadmaps on HVAC Technologies, Water...

438

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]

Proceedings of Healthy Buildings 2000, Vol.1, Espoo,Proceedings of Healthy Buildings/IAQ '97: Global Issues andand secondary schools. Healthy Buildings 2000, 1: 193-98.

Shendell, Derek Garth

2010-01-01T23:59:59.000Z

439

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]

Proceedings of Healthy Buildings/IAQ '97: Global Issues andand secondary schools. Healthy Buildings 2000, 1: 193-98.Proceedings of Healthy Buildings 2000, Vol.1, Espoo,

Shendell, Derek Garth

2003-01-01T23:59:59.000Z

440

Investigation and Analysis of Energy Consumption and Cost of Electric Air Conditioning Systems in Civil Buildings in Changsha  

E-Print Network [OSTI]

of cold and heat sources and the HVAC area of the buildings. Meanwhile the economical and feasible types of cold and heat sources are pointed out, i.e., oil boilers and gas boilers for heat source, and centrifugal and screw water chillers for cold source...

Xie, D.; Chen, J.; Zhang, G.; Zhang, Q.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "building hvac systems" 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

Utveckling av provmetodik för HVAC på lastbil; Development of test methodology for climatic testing of truck HVAC on trucks.  

E-Print Network [OSTI]

?? I detta examensarbetet undersöks hur provningen av HVAC på lastbilar skall utföras i klimatvindtunneln CD7 som Scania färdigställer till år 2013. HVAC omfattar kupéuppvärmning,… (more)

Jonsson, Björn-Emil

2011-01-01T23:59:59.000Z

442

Advanced Technologies and Practices - Building America Top Innovations...  

Energy Savers [EERE]

and construction practices that improve the building envelope; heating, ventilation, and air conditioning (HVAC); water heating components; and indoor air quality and safety...

443

Building America Whole-House Solutions for New Homes: Insight...  

Office of Environmental Management (EM)

Building America research partner IBACOS to design HERS-49 homes with high-efficiency HVAC, ducts in insulated crawl spaces, raised heel trusses, dehumidifiers, and central...

444

Low-Cost Ventilation in Production Housing - Building America...  

Energy Savers [EERE]

for New Homes: Imagine Homes, San Antonio, Texas Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for Contractors to Share with Homeowners...

445

A study of time-dependent responses of a mechanical displacement ventilation (DV) system and an underfloor air distribution (UFAD) system : building energy performance of the UFAD system  

E-Print Network [OSTI]

to HVAC operating cost based on recent energy markets forenergy market, UFAD still has the advantage on overall HVAC

Yu, Jong Keun

2010-01-01T23:59:59.000Z

446

Building America Webinar: Central Multifamily Water Heating Systems...  

Energy Savers [EERE]

Building America Webinar: Central Multifamily Water Heating Systems Building America Webinar: Central Multifamily Water Heating Systems January 21, 2015 11:00AM to 12:30PM MST...

447

Building America Webinar: Central Multifamily Water Heating Systems...  

Energy Savers [EERE]

Building America Webinar: Central Multifamily Water Heating Systems Building America Webinar: Central Multifamily Water Heating Systems January 21, 2015 3:00PM to 4:30PM EST This...

448

Open Automated Demand Response for Small Commerical Buildings  

E-Print Network [OSTI]

HVAC Control System Advanced Telemetry No DDC Zone Control Data Trending DDC Zone Control Data Trending Detail EMCS Trends

Dudley, June Han

2009-01-01T23:59:59.000Z

449

Variable Refrigerant Flow HVAC  

E-Print Network [OSTI]

Conference, San Antonio, Texas Dec. 16-18 What do they know that we don’t know? Japan 90% Over 7 Million Systems China 86% Over 17 Million Systems Europe 81% Over 7 Million Systems USA 4% .5 Million Systems ESL-KT-13-12-33 CATEE 2013: Clean Air Through...-source VRF IEER 11.5 - 17.7 19.6 9.7 10.3 10.9 10.5 IPLV - 14.2 - - SCHE - - 18.6 N/A Energy Efficiency - commercial EER ESL-KT-13-12-33 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 More Comfort & Quiet ? 4 ton...

Jones, S.

2013-01-01T23:59:59.000Z

450

REDUCING ENERGY USE IN FLORIDA BUILDINGS  

E-Print Network [OSTI]

to determine the energy saving features available which are, in most cases, stricter than the current Florida Building Code. The energy savings features include improvements to building envelop, fenestration, lighting and equipment, and HVAC efficiency...

Raustad, R.; Basarkar, M.; Vieira, R.

451

Measuring Outdoor Air Intake Rates into Existing Building  

SciTech Connect (OSTI)

Practical and accurate technologies are needed for continuously measuring and controlling outdoor air (OA) intake rates in commercial building heating, ventilating, and air conditioning (HVAC) systems. This project evaluated two new measurement approaches. Laboratory experiments determined that OA flow rates were measurable with errors generally less than 10 percent using electronic air velocity probes installed between OA intake louver blades or at the outlet face of louvers. High accuracy was maintained with OA flow rates as low as 15 percent of the maximum for the louvers. Thus, with this measurement approach HVAC systems do not need separate OA intakes for minimum OA supply. System calibration parameters are required for each unique combination of louver type and velocity sensor location but calibrations are not necessary for each system installation. The research also determined that the accuracy of measuring OA flow rates with velocity probes located in the duct downstream of the intake louver was not improved by installing honeycomb airflow straighteners upstream of the probes. Errors varied with type of upstream louver, were as high as 100 percent, and were often greater than 25 percent. In conclusion, use of electronic air velocity probes between the blades of OA intake louvers or at the outlet face of louvers is a highly promising means of accurately measuring rates of OA flow into HVAC systems. The use of electronic velocity probes downstream of airflow straighteners is less promising, at least with the relatively small OA HVAC inlet systems employed in this research.

Fisk, William; Sullivan, Douglas; Cohen, Sebastian; Han, Hwataik

2009-04-16T23:59:59.000Z

452

Control Systems & LEED  

SciTech Connect (OSTI)

This article discusses the LEED guidelines (2009 v3), and corresponding points, that can only be attained using control systems for lighting, HVAC, and/or the entire building. Integrating and centralizing control systems allows for better building management, energy savings and can potentially award 29 points towards certification across the following categories: Sustainable Sites, Energy & Atmosphere, and Indoor Air Quality. In closing, potential energy savings are highlighted and the overall market potential for control systems are summarized.

Cooperman, Alissa; Dieckmann, John; Brodrick, James

2012-06-01T23:59:59.000Z

453

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

454

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

455

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

E-Print Network [OSTI]

of energy consumption, and human comfort requirements. This paper presents a daily energy management in view of rising energy costs, the government mandate on reduction of energy consumption (Capehart et al requirements. A major portion of energy consumption of a building comes from HVAC units. For example

Luh, Peter

456

Integrated Energy Systems (IES) for Buildings: A Market Assessment...  

Broader source: Energy.gov (indexed) [DOE]

Energy Systems (IES) for Buildings: A Market Assessment, September 2002 Integrated Energy Systems (IES) combine on-site power or distributed generation technologies with thermally...

457

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

458

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

459

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

460

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

Note: This page contains sample records for the topic "building hvac systems" 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

Building Energy Information Systems: User Case Studies  

E-Print Network [OSTI]

building to outside entities, supporting and aligning with current developments in demand side management,

Granderson, Jessica

2010-01-01T23:59:59.000Z

462

Innovative Faade Systems for Low-energy Commercial Buildings  

E-Print Network [OSTI]

Innovative Façade Systems for Low-energy Commercial Buildings Eleanor Lee, Stephen Selkowitz abstract Glazing and façade systems have very large impacts on all aspects of commercial building for commercial buildings to significantly reduce energy and demand, helping to move us toward our goal of net

463

Building load control and optimization  

E-Print Network [OSTI]

Researchers and practitioners have proposed a variety of solutions to reduce electricity consumption and curtail peak demand. This research focuses on load control by improving the operations in existing building HVAC ...

Xing, Hai-Yun Helen, 1976-

2004-01-01T23:59:59.000Z

464

Buildings and corporate strategy : towards a management system model  

E-Print Network [OSTI]

This thesis focuses on buildings as a subject of attention and inquiry in a corporate setting. It attempts to draw implications for the design of a management system to deal with the special nature of buildings as a resource. ...

Brana, Rodrigo

1985-01-01T23:59:59.000Z

465

Energy management systems for commercial buildings. Final report  

SciTech Connect (OSTI)

Increasing costs of energy and the development of lower cost microelectronics have created a growing market for energy management systems applied to commercial buildings. This report examines the spectrum of EMS available and how they are used in different types of commercial buildings. An informal survey of 197 commercial building owners provided additional information on EMS installed and the energy savings attributed to those systems. Evaluations were performed to identify types of EMS appropriate to specific types of commercial buildings.

Woody, A.W.

1986-02-01T23:59:59.000Z

466

Building Energy Information Systems: User Case Studies  

SciTech Connect (OSTI)

Measured energy performance data are essential to national efforts to improve building efficiency, as evidenced in recent benchmarking mandates, and in a growing body of work that indicates the value of permanent monitoring and energy information feedback. This paper presents case studies of energy information systems (EIS) at four enterprises and university campuses, focusing on the attained energy savings, and successes and challenges in technology use and integration. EIS are broadly defined as performance monitoring software, data acquisition hardware, and communication systems to store, analyze and display building energy information. Case investigations showed that the most common energy savings and instances of waste concerned scheduling errors, measurement and verification, and inefficient operations. Data quality is critical to effective EIS use, and is most challenging at the subsystem or component level, and with non-electric energy sources. Sophisticated prediction algorithms may not be well understood but can be applied quite effectively, and sites with custom benchmark models or metrics are more likely to perform analyses external to the EIS. Finally, resources and staffing were identified as a universal challenge, indicating a need to identify additional models of EIS use that extend beyond exclusive in-house use, to analysis services.

Granderson, Jessica; Piette, Mary Ann; Ghatikar, Girish

2010-03-22T23:59:59.000Z

467

Experimental results of a predictive neural network HVAC controller  

SciTech Connect (OSTI)

Proportional, integral, and derivative (PID) control is widely used in many HVAC control processes and requires constant attention for optimal control. Artificial neural networks offer the potential for improved control of processes through predictive techniques. This paper introduces and shows experimental results of a predictive neural network (PNN) controller applied to an unstable hot water system in an air-handling unit. Actual laboratory testing of the PNN and PID controllers show favorable results for the PNN controller.

Jeannette, E.; Assawamartbunlue, K.; Kreider, J.F. [Univ. of Colorado, Boulder, CO (United States); Curtiss, P.S. [Architectural Energy Corp., Boulder, CO (United States)

1998-12-31T23:59:59.000Z

468

HVAC Design Strategy for a Hot-Humid Production Builder, Houston, Texas (Fact Sheet), Building America Case Study: Whole-House Solutions for New Homes, Building Technologies Office (BTO)  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorge Waldmann GeorgeLogging Systems2008Gulf Coast'sFormHOWHQHVAC Design

469

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

SciTech Connect (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

470

A View on Future Building System Modeling and Simulation  

SciTech Connect (OSTI)

This chapter presents what a future environment for building system modeling and simulation may look like. As buildings continue to require increased performance and better comfort, their energy and control systems are becoming more integrated and complex. We therefore focus in this chapter on the modeling, simulation and analysis of building energy and control systems. Such systems can be classified as heterogeneous systems because they involve multiple domains, such as thermodynamics, fluid dynamics, heat and mass transfer, electrical systems, control systems and communication systems. Also, they typically involve multiple temporal and spatial scales, and their evolution can be described by coupled differential equations, discrete equations and events. Modeling and simulating such systems requires a higher level of abstraction and modularisation to manage the increased complexity compared to what is used in today's building simulation programs. Therefore, the trend towards more integrated building systems is likely to be a driving force for changing the status quo of today's building simulation programs. Thischapter discusses evolving modeling requirements and outlines a path toward a future environment for modeling and simulation of heterogeneous building systems.A range of topics that would require many additional pages of discussion has been omitted. Examples include computational fluid dynamics for air and particle flow in and around buildings, people movement, daylight simulation, uncertainty propagation and optimisation methods for building design and controls. For different discussions and perspectives on the future of building modeling and simulation, we refer to Sahlin (2000), Augenbroe (2001) and Malkawi and Augenbroe (2004).

Wetter, Michael

2011-04-01T23:59:59.000Z

471

Achieving Energy Efficiency in Exis0ng Buildings How achieve significant commercial building energy efficiency?  

E-Print Network [OSTI]

· Led BU Energy Audit over past 3 years · University Sustainability CommiAchieving Energy Efficiency in Exis0ng Buildings ·How achieve significant commercial building energy efficiency? Focus on HVAC. ·Our solu0on

Hutyra, Lucy R.

472

Utveckling av provmetodik för HVAC på lastbil; Development of test methodology for truck HVAC.  

E-Print Network [OSTI]

?? The issue about how Scania shall perform HVAC tests in the climatic wind tunnel CD7, which Scania is about to complete by year 2013,… (more)

Tedenäs, Jimmy

2011-01-01T23:59:59.000Z

473

Building Thermal Envelope Systems and Materials (BTESM) progress report for DOE Office of Buildings Energy Research  

SciTech Connect (OSTI)

The Monthly Report of the Building Thermal Envelope Systems and Materials (BTESM) Program is a monthly update of both in-house ORNL projects and subcontract activities in the research areas of building materials, wall systems, foundations, roofs, building diagnostics, and research utilization and technology transfer. Presentations are not stand-alone paragraphs every month. Their principal values are the short-time lapse between accomplishment and reporting and their evolution over a period of several months.

Burn, G. (comp.)

1990-01-01T23:59:59.000Z

474

Diagnosis of Effectiveness of HVAC System and Energy Performance of Osaka-Gas Building through Retro-Commissioning Part 1 Outline of HVAC Systems and Diagnosis of Energy Efficiency of Air Systems  

E-Print Network [OSTI]

-22b AC-22a AC-22b INV Output 97% (58.2Hz) 84% (50.4Hz) 70% (40.8Hz) Air volume at the outlet duct 87,848 m3/h 56,968 m3/h 42,635 m3/h Power consumption 70.0kW 46.8kW 20.6kW Outlet static pressure 854Pa 798Pa 802Pa 5F MD... 2013 Note 1: Circles (?) in Figure 6.1 represent operating points of the fans alone. Triangles (?) represent operating air volumes calculated based on the fan’s static pressure. Note 2: Numbers in boxes ??? represent air volume measurement...

Hatanaka,T.; Aoki,K; Matsuda, N.; Yamaha,M.; Tanaka,H.; Nakahara,N.

2014-01-01T23:59:59.000Z

475

Intelligent Building Energy Information and Control Systems for Low-Energy Operations and Optimal Demand Response  

E-Print Network [OSTI]

As  we  develop low?energy buildings, the need for models Building Energy Information and Control Systems for Low-Building  Energy  Information  and  Control  Systems  for  Low­

Piette, Mary Ann

2014-01-01T23:59:59.000Z

476

Development of Building Automation and Control Systems  

E-Print Network [OSTI]

is not suitable for low energy buildings that requirelow energy solutions such as natural ventilation and active facade. In this BUILDINGlow energy green buildingsVzero energy in the ideal caseVis very challenging. There are examples of zero energy buildings

Yang, Yang; Zhu, Qi; Maasoumy, Mehdi; Sangiovanni-Vincentelli, Alberto

2012-01-01T23:59:59.000Z

477

Recovery Act-Funded HVAC projects  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy was allocated funding from the American Recovery and Reinvestment Act to conduct research into heating, ventilation, and air conditioning (HVAC) technologies and...

478

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

479

Systems building of short span precast concrete bridges  

E-Print Network [OSTI]

SYSTEMS BUILDING OF SHORT SPAN PRECAST CONCRETE BRIDGES A Thesis by MARVIN STEELE Submitted to the Graduate College of Texas AIIM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1975 Major... Subject: Civil Engineering SYSTEMS BUILDING OF SHORT SPAN PRECAST CONCRETE BRIDGES A Thesis by MARVIN STEELE Aoproved as to style and content by: (Chairman of Committee) (Head of Department ( mber) fi (Member) May 1975 ABSTRACT Systems Building...

Steele, Marvin

1975-01-01T23:59:59.000Z

480

Integration of Real-Time Data Into Building Automation Systems  

SciTech Connect (OSTI)

The project goal was to investigate the possibility of using predictive real-time information from the Internet as an input to building management system algorithms. The objectives were to identify the types of information most valuable to commercial and residential building owners, managers, and system designers. To comprehensively investigate and document currently available electronic real-time information suitable for use in building management systems. Verify the reliability of the information and recommend accreditation methods for data and providers. Assess methodologies to automatically retrieve and utilize the information. Characterize equipment required to implement automated integration. Demonstrate the feasibility and benefits of using the information in building management systems. Identify evolutionary control strategies.

Mark J. Stunder; Perry Sebastian; Brenda A. Chube; Michael D. Koontz

2003-04-16T23:59:59.000Z

Note: This page contains sample records for the topic "building hvac systems" 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

Expert system for the design of heating, ventilating, and air-conditioning systems. Master's thesis  

SciTech Connect (OSTI)

Expert systems are computer programs that seek to mimic human reason. An expert system shelf, a software program commonly used for developing expert systems in a relatively short time, was used to develop a prototypical expert system for the design of heating, ventilating, and air-conditioning (HVAC) systems in buildings. Because HVAC design involves several related knowledge domains, developing an expert system for HVAC design requires the integration of several smaller expert systems known as knowledge bases. A menu program and several auxiliary programs for gathering data, completing calculations, printing project reports, and passing data between the knowledge bases are needed and have been developed to join the separate knowledge bases into one simple-to-use program unit.

Camejo, P.J.

1989-12-01T23:59:59.000Z

482

Technical and Energy Assessment of Building Integrated Photovoltaic Systems applied to the UAE Office Buildings  

E-Print Network [OSTI]

Technical and Energy Assessment of Building Integrated Photovoltaic Systems applied to the UAE Office Buildings Hassan Radhi Assistant Professor College of Engineering UAE University Al-Ain, United Arab Emirates ABSTRACT In the market... due to the PV panels represents an important factor when the EPBT is estimated Keywords: BiPV, embodied energy, UAE commercial buildings. INTRODUCTION Developments in the design and manufacture of photovoltaic cells have recently been a...

Radhi, H.

2010-01-01T23:59:59.000Z

483

Building America Systems Integration Research Annual Report: FY 2012  

SciTech Connect (OSTI)

This document is the Building America FY2012 Annual Report, which includes an overview of the Building America Program activities and the work completed by the National Renewable Energy Laboratory and the Building America industry consortia (the Building America teams). The annual report summarizes major technical accomplishments and progress towards U.S. Department of Energy Building Technologies Program's multi-year goal of developing the systems innovations that enable risk-free, cost effective, reliable and durable efficiency solutions that reduce energy use by 30%-50% in both new and existing homes.

Gestwick, M.

2013-05-01T23:59:59.000Z

484

VARIABLE SPEED INTEGRATED INTELLIGENT HVAC BLOWER  

SciTech Connect (OSTI)

This comprehensive topical report discusses the key findings in the development of a intelligent integrated blower for HVAC applications. The benefits of rearward inclined blades over that of traditional forward inclined blades is well documented and a prototype blower design is presented. A comparison of the proposed blower to that of three typical units from the industry is presented. The design of the blower housing is also addressed and the impact of size limitations on static efficiency is discussed. Issues of air flow controllability in the rearward inclined blower is addressed and a solution to this problem is proposed. Several motor design options are discussed including inside-out radial flux designs and novel axial flux designs, all are focused on the various blower needs. The control of the motor-blower and airflow through the use of a high density inverter stage and modern digital signal processor is presented. The key technical challenges of the approach are discussed. The use of the motor as a sensor in the larger heating/ventilating system is also discussed. Diagnostic results for both the motor itself and the blower system are presented.

Shixiao Wang; Herman Wiegman; Wilson Wu; John Down; Luana Iorio; Asha Devarajan; Jing Wang; Ralph Carl; Charlie Stephens; Jeannine Jones; Paul Szczesny

2001-11-14T23:59:59.000Z

485

Cyber-Physical Energy Systems: Focus on Smart Buildings  

E-Print Network [OSTI]

of a deeply coupled system of energy usage, comfort and work derived. At a macroscale, buildings use approxi computers and laptops in offices and homes will exceed over 3x the energy use by all data centers combinedCyber-Physical Energy Systems: Focus on Smart Buildings Jan Kleissl Dept. of Mechanical

Gupta, Rajesh

486

HPCBSHigh Performance Commercial Building Systems Amanda Potter, Hannah Friedman and Tudi Haasl,  

E-Print Network [OSTI]

HPCBSHigh Performance Commercial Building Systems Amanda Potter, Hannah Friedman and Tudi Haasl commercial building energy use. Although the success and cost-effectiveness of commissioning projects depends systems are becoming more prevalent in commercial buildings, yet building owners often find

487

Market assessment for active solar heating and cooling products. Category B: a survey of decision-makers in the HVAC marketplace. Final report  

SciTech Connect (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

488

4.462 / 4.441 Building Technologies II: Building Structural Systems I, Spring 2003  

E-Print Network [OSTI]

This course serves as an introduction to the history, theory, and construction of basic structural systems with an introduction to energy issues in buildings. Emphasis is placed on developing an understanding of basic ...

Ochsendorf, John Allen

489

Reduce Building Energy Consumption by Improving the Supply Air Temperature Schedule and Recommissioning the Terminal Boxes, Submitted to the Energy Management and Operations Division at the M.D. Anderson Cancer Center  

E-Print Network [OSTI]

At the request of the Energy Management and Operations Department at M.D. Anderson Cancer Center, the Energy Systems Laboratory of Texas A&M University performed a study of optimizing the HVAC operation at its Basic Research Building. The Basic...

Liu, M.; Athar, A.; Zhu, Y.; Claridge, D. E.

1995-01-01T23:59:59.000Z

490

Smart Buildings: Business Case and Action Plan  

E-Print Network [OSTI]

Static Pressure Reset: While use of variable flow systems for both water and air have resulted in significant performance improvements in HVAC

Ehrlich, Paul

2009-01-01T23:59:59.000Z

491

Building America Webinar: High Performance Space Conditioning...  

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

EST The webinar will continue our series on strategies to improve the performance of HVAC systems for low load homes and home performance retrofits. Presenters and specific...

492

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

493

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

494

ThermoSense: Occupancy Thermal Based Sensing for HVAC Control  

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ThermoSense: Occupancy Thermal Based Sensing for HVAC Control Alex Beltran Elect. Eng. & Comp Occupancy Sensing, Thermal Sensing, HVAC Control 1. INTRODUCTION From 1980 to 2010, energy in the United, November 13-14 2013, Rome, Italy. Copyright 2013 ACM 978-1-4503-2431-1/13/11 ...$15.00. (HVAC) consumed 42

Cerpa, Alberto E.

495

Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor -Global  

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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.

496

SMUD's HVAC Programs Ravi Patel-Program Planning  

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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

497

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

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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

498

Handover Performance of HVAC Duct Based Indoor Wireless Networks  

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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.

499

Continued on next page A letter explaining the 2005 HVAC  

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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

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Tematiche di ricerca Controllo di sistemi HVAC&R  

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Tematiche di ricerca Controllo di sistemi HVAC&R Controllo di processo per l'industria dei;Tematiche di ricerca Controllo di sistemi HVAC&R Controllo di processo per l'industria dei semiconduttori controllo di sistemi HVAC&R 2 Controllo di processo per l'industria dei semiconduttori 3 Problemi di

Schenato, Luca