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14-plex Feasibility Report

Description: The Native Village of Unalakleet project was a feasibility study for a retrofit of a “tribally owned” three story, 14 apartment complex located in Unalakleet, Alaska. The program objective and overall goal was to create a plan for retrofitting to include current appraised value and comparable costs of new construction to determine genuine feasibility as low-income multi-family housing for tribal members.
Date: June 21, 2013
Creator: Kotongan, Victoria Hazel
Partner: UNT Libraries Government Documents Department

A Practical Guide for Commissioning Existing Buildings

Description: Although this guide focuses on the retrocommissioning process and its advantages, all three types of commissioning--retrocommissioning, commissioning, and recommissioning--play an equally important role in ensuring that buildings perform efficiently and provide comfortable, safe, and productive work environments for owners and occupants. For new construction and retrofit projects, commissioning should be incorporated early, during design, and last throughout the length of the project. For buildings that were never commissioned, the retrocommissioning process can yield a wealth of cost-saving opportunities while enhancing a building's environment. Finally, once a building is commissioned or retrocommissioned, incorporating recommissioning into the organization's O and M program (by periodically reapplying the original diagnostic testing and checklist procedures) helps ensure that cost savings and other benefits gained from the original process persist over time.
Date: May 11, 1999
Creator: Haasl, T.
Partner: UNT Libraries Government Documents Department

Volume II solicitation package for solicitation no. 522887-5422 {open_quotes}site electrical replacements & substation{close_quotes} subproject: 69 KV substation

Description: This solicitation is for the U.S. Department of Energy under Prime Contract No. DE-AC04-88-DP43495 with EG&G Mound Applied Technologies. Ohio Sales or Use taxes are not to be included in the proposal price. Applicable taxes due or owing to the State of Ohio will be paid by the buyer under Direct Payment Permit No. 98-002230. Refer to Form ML-2487, General Provisions, Article 24, {open_quotes}Federal, State & Local Taxes{close_quotes}. Sellers are advised that purchases of building and construction materials for incorporation into a structure or improvement to a real property which is accepted for ownership by the United States or one of its agencies are exempt from Ohio Sales and Use taxes. Unnecessarily elaborate brochures or other presentations beyond those sufficient to present a complete and effective response to this solicitation are not desired and may be construed as an indication of the seller`s lack of cost consciousness. Elaborate art work, expensive paper and binding, and expensive visual and other presentation aids are neither necessary nor wanted.
Date: May 3, 1991
Partner: UNT Libraries Government Documents Department

Homeowner Best Practices Guide for Residential Retrofits

Description: This best practices guide for HV AC system retrofits is aimed at homeowners who want guidance on upgrading their heating, cooling and ventilation (HVAC) systems and integrating these upgrades with other changes to their home. It has been developed around the idea of having packages of changes to the building HV AC system and building envelope that are climate and house construction dependent. These packages include materials procedures and equipment, and are designed to remove some of the guesswork when selecting a builder, contractor, or installer. The packages are not meant to be taken as rigid requirements - instead they are systems engineered guidelines that form the basis for energy efficient retrofits. Similar approaches have been taken previously for new construction, where a systems engineering approach has been used to develop extremely energy-efficient homes that are comfortable safe and durable, and often cost less than standard construction. This approach is best epitomized by the Building America program, whose partners have built thousands of residences throughout the U.S. using these principles. The differences between retrofitting and new construction tend to limit the changes one can make to a building, so these packages rely on relatively simple and non-intrusive technologies and techniques. The retrofits also focus on changes to a building that will give many years of service to the occupants. Another key aspect of these best practices is that we need to know how a house is working so that we know what parts have the potential for improvement. To do this we have put together a set of simple tests that a homeowner can perform on their own together with checklists and questionnaires. The measured test results, observations and homeowner answers to questions are used to direct us towards the best retrofits applicable to each individual house. The retrofits will ...
Date: September 1, 2005
Creator: Walker, Iain S.
Partner: UNT Libraries Government Documents Department

Energy Savings and Economics of Advanced Control Strategies for Packaged Air-Conditioning Units with Gas Heat

Description: Pacific Northwest National Laboratory (PNNL) with funding from the U.S. Department of Energy's Building Technologies Program (BTP) evaluated a number of control strategies that can be implemented in a controller, to improve the operational efficiency of the packaged air conditioning units. The two primary objectives of this research project are: (1) determine the magnitude of energy savings achievable by retrofitting existing packaged air conditioning units with advanced control strategies not ordinarily used for packaged units and (2) estimating what the installed cost of a replacement control with the desired features should be in various regions of the U.S. This document reports results of the study.
Date: December 31, 2011
Creator: Wang, Weimin; Katipamula, Srinivas; Huang, Yunzhi & Brambley, Michael R.
Partner: UNT Libraries Government Documents Department

JC Penney Retail Renovation, June 2011

Description: JC Penney is a partner with the DOE's Commercial Building Partnerships (CBP) program, working with PNNL to explore energy design measures (EDMs) that may be applied to their building portfolio. A site in Colonial Heights, VA was chosen for a retrofit project; computer modeling predicts 45% improved energy performance compared to baseline operations. This case study reviews EDMs that were selected and their performance as of June 2011.
Date: June 30, 2011
Creator: Baechler, Michael C.; Rosenberg, Michael I.; Zhang, Jian; Ruiz, Kathleen A. & Wilburn, Matthew S.
Partner: UNT Libraries Government Documents Department

Retrofit Best Practices Guide

Description: Few people add siding or change their windows just to reduce their energy bills. But whatever your reasons for retrofitting your home, this will be an important opportunity to improve your home's energy efficiency. Not only will this reduce your utility bills, it will also improve your comfort level and improve our environment. Retrofitting your house is a big deal, and you shouldn't underestimate the effort that will be required to plan the job properly. The energy conservation rewards can be great, but there are also pitfalls that you'll want to avoid. That's what this Best Practices Guide is all about. We can't cover all the issues in these few pages, but we'll tell you some things you need to know if you're changing your siding or windows, and tell you where to learn more about other changes you may want to make to your house. What exactly is a ''best practice''? To put this guide together, we've tested products, talked to contractors and manufacturers, and reviewed the results from a large number of house retrofits. Of course, ''best'' will vary according to the situation. That's why you must start with a careful examination of your house and its existing condition.
Date: January 13, 2004
Creator: Stovall, T.K.
Partner: UNT Libraries Government Documents Department

ELECTRONICS UPGRADE OF HIGH RESOLUTION MASS SPECTROMETERS

Description: High resolution mass spectrometers are specialized systems that allow researchers to determine the exact mass of samples to four significant digits by using magnetic and electronic sector mass analyzers. Many of the systems in use today at research laboratories and universities were designed and built more than two decades ago. The manufacturers of these systems have abandoned the support for some of the mass spectrometers and parts to power and control them have become scarce or obsolete. The Savannah River National Laboratory has been involved in the upgrade of the electronics and software for these legacy machines. The Electronics Upgrade of High Resolution Mass Spectrometers consists of assembling high-end commercial instrumentation from reputable manufacturers with a minimal amount of customization to replace the electronics for the older systems. By taking advantage of advances in instrumentation, precise magnet control can be achieved using high resolution current sources and continuous feedback from a high resolution hall-effect probe. The custom equipment include a precision voltage divider/summing amplifier chassis, high voltage power supply chassis and a chassis for controlling the voltage emission for the mass spectrometer source tube. The upgrade package is versatile enough to interface with valve control, vacuum and other instrumentation. Instrument communication is via a combination of Ethernet and traditional IEEE-488 GPIB protocols. The system software upgrades include precision control, feedback and spectral waveform analysis tools.
Date: March 10, 2008
Creator: Mcintosh, J & Joe Cordaro, J
Partner: UNT Libraries Government Documents Department

Improvement to Pipeline Compressor Engine Reliability Through Retrofit Micro-Pilot Ignition System

Description: This report documents the second year's effort towards a 3-year program to develop micropilot ignition systems for existing pipeline compressor engines. In essence, all Phase II goals and objectives were met. We intend to proceed with the Phase III research plan, as set forth by the applicable Research Management Plan. The objective for Phase II was to further develop and optimize the micropilot ignition system for large bore, slow speed engines operating at low compression ratios. The primary elements of Micropilot Phase II were to evaluate the results for the 4-cylinder system prototype developed for Phase I, then optimize this system to demonstrate the technology's readiness for the field demonstration phase. In all, there were twelve (12) tasks defined and executed to support objectives in a stepwise fashion. Task-specific approaches and results are documented in this report. Research activities for Micropilot Phase II were conducted with the understanding that the efforts are expected to result in a commercial product to capture and disseminate the efficiency and environmental benefits of this new technology. Commercially-available fuel injection products were identified and applied to the program where appropriate. Modifications to existing engine components were kept to a minimum. This approach will minimize the overall time-to-market requirements, while meeting performance and cost criteria. The optimized four-cylinder system data demonstrated significant progress compared to Phase I results, as well as traditional spark ignition systems. An extensive testing program at the EECL using the GMV-4 test engine demonstrated that: (1) In general, the engine operated more stable fewer misfires and partial combustion events when using the 3-hole injectors compared to the 5-hole injectors used in Phase I. (2) The engine had, in general, a wider range of operation with the 3-hole injectors. Minimum operational boost levels were approximately 5''Hg lower and the minimum pilot quantity that ...
Date: June 1, 2004
Creator: Bestor, Ted
Partner: UNT Libraries Government Documents Department

Ceramic vane demonstration in an industrial turbine

Description: A DOE program with Allison Engine Co. will demonstrate ceramic vanes in an industrial turbine. First-stage ceramic vanes and metallic mounts are to be designed, fabricated, and operated in a short-term engine test (up to 50 hr). The vanes and mounts will then be retrofitted into an existing turbine for operation at a commercial site for up to 8000 hr. They have been designed. Thermal and stress analyses of the vanes have calculated acceptable fast fracture stress levels and probabilities of survival > 99.99% for turbine continuous power and emergency shutdown (thermal shock) conditions. Max calculated steady-state stress is 169 MPa at 1182 C, so currently available ceramics appear to provide acceptable fast fracture strengths for use in industrial turbines. Long-term materials test will evaluate the lifetimes and retained strength of ceramics at stress and temperature levels in the range calculated from the ceramic vane analyses. Results of these tests will support on which vane material will be used in the long duration turbine demonstration. A successful demonstration could provide a basis for incorporating first-stage ceramic vanes into current generation industrial turbines and also the introduction of ceramic airfoils into downstream rows of future high temperature Advanced Turbine System (ATS) engines.
Date: April 1, 1997
Creator: Wenglarz, R.A.; Calcuttawala, S.M. & Pope, J.E.
Partner: UNT Libraries Government Documents Department

Integral CFLs performance in table lamps

Description: This paper focuses on performance variations associated with lamp geometry and distribution in portable table luminaires. If correctly retrofit with compact fluorescent lamps (CFLs), these high use fixtures produce significant energy savings, but if misused, these products could instead generate consumer dissatisfaction with CFLs. It is the authors assertion that the lumen distribution of the light source within the luminaires plays a critical role in total light output, fixture efficiency and efficacy, and, perhaps most importantly, perceived brightness. The authors studied nearly 30 different integral (screw-based) CFLs available on the market today in search of a lamp, or group of lamps, which work best in portable table luminaires. The findings conclusively indicate that horizontally oriented CFLs outperform all other types of CFLs in nearly every aspect.
Date: March 1, 1997
Creator: Page, E.; Driscoll, D. & Siminovitch, M.
Partner: UNT Libraries Government Documents Department

A whole building demonstration of re-cover over an existing wet roof

Description: Roof re-cover, the practice of installing a new roof over an existing failed roof, has become commonplace. The 1994 National Roofing Contractors Annual Roofing Survey reported that approximately 33% of current reroofing activity is re-cover. Market trends suggest that re-cover will become an increasingly more popular option. Moisture in the failed roof complicates the decision whether or not to re-cover and how to do the recover if that is the decision. If the root to be re-covered contains moisture that will not be removed during reroofing, this moisture must be able to escape from the roof system. Otherwise, moisture entrapped in the roofing system may eventually lead to the mechanical failure of fasteners and the roof deck, especially if it is metal. In 1991, the Oak Ridge National Laboratory (ORNL) surveyed its own roofing inventory and found that 164 buildings or 70% of the laboratory roof area needed reroofing. Because of the high cost of tear off and replacement, an alterative was sought. This paper describes the procedure employed to determine the suitability of a particular roof system on a laboratory building for re-covering. The procedure involves the use of field diagnostics, laboratory experiments and numerical simulations that demonstrate that the particular roof type can be re-covered. Furthermore, the building and roof system have been monitored for approximately 16 months after re-cover. The monitoring results are compared to the numerical simulations and demonstrate that the roof system is drying and that the reroofing strategy that they used is cost-effective.
Date: December 31, 1995
Creator: Desjarlais, A.O.; Petrie, T.W.; Christian, J.E.; McLain, H.A. & Childs, P.W.
Partner: UNT Libraries Government Documents Department

Self drying roofs: What! No dripping!

Description: Many roofs are replaced because water accumulates in portions of the roofing system.These accumulations can cause dripping, accelerated membrane failure, poor thermal performance, the threat of structural decay, and the depreciation of building assets. Traditionally, the roofing industry has been concerned with controlling the inflow of water into the roof. An example of this strategy would be the development of a more reliable membrane. However, roof membranes inevitably leak. For this reason, the roof design strategy of the future must be concerned with controlling water outflow. The requirements of this type of roof system are described. Under normal operating conditions (no leaks), the total moisture content of a self-drying roof system shall not increase with time and condensation shall not occur under the membrane during winter uptake. Moisture vapor movement by convection must be eliminated and the flow of water by gravity through imperfections in the roof system must be controlled. After a leak has occurred, no condensation on the upper surface of the deck shall be tolerated and the water introduced by the leak must be dissipated to the building interior in a minimum amount of time. Finite difference computer modeling is used to demonstrate the effectiveness of the design. The impact of deck and insulation permeance, climate, leaks, and wintertime water uptake are simulated. A database of simulations is qualitatively described; this database will be used in future work to produce a simplified means of assessing the design parameters of a self-drying roof system.
Date: December 31, 1995
Creator: Desjarlais, A.
Partner: UNT Libraries Government Documents Department

A utility survey and market assessment on repowering in the electric power industry

Description: Section 1 of this report provides a background about the DOE High Performance Power Systems (HIPPS) program. There are two kinds of HIPPS cycles under development. One team is led by the Foster Wheeler Development Corporation, the other team is led by the United Technologies Research Center. These cycles are described. Section 2 summarizes the feedback from the survey of the repowering needs of ten electric utility companies. The survey verified that the utility company planners favor a repowering for a first-of-a-kind demonstration of a new technology rather than an all-new-site application. These planners list the major factor in considering a unit as a repowering candidate as plant age: they identify plants built between 1955 and 1965 as the most likely candidates. Other important factors include the following: the need to reduce operating costs; the need to perform major maintenance/replacement of the boiler; and the need to reduce emissions. Section 3 reports the results of the market assessment. Using the size and age preferences identified in the survey, a market assessment was conducted (with the aid of a power plant data base) to estimate the number and characteristics of US generating units which constitute the current, primary potential market for coal-based repowering. Nearly 250 units in the US meet the criteria determined to be the potential repowering market.
Date: August 1, 1996
Creator: Klara, J.M.; Weinstein, R.E. & Wherley, M.R.
Partner: UNT Libraries Government Documents Department

What`s new in federal energy management: FEMP program overview. Federal energy saver showcases

Description: To promote widespread Federal energy efficiency, agencies are showcasing their best energy efficiency, water conserving, and solar and other renewable energy technologies. To highlight these successful energy-efficient projects, Executive Order 12902 directs agencies to designate at least one newly constructed or existing building as a showcase facility. At existing facilities, agencies must also try to incorporate cogeneration and indoor air quality improvements. Agencies are directed to develop and implement effective plans to make these showcase projects happen. Project successes will show the strength of partnering with other agencies, energy services companies, utilities, and national laboratories, and of using the US Department of Energy Federal Energy Management Program (FEMP) as a resource. The goal is Federal facilities operating at peak efficiency. A Federal Energy Saver Showcase plaque is prominently displayed at each showcase site, notifying visitors they are entering a government building that successfully conserves energy and water and saves taxpayer dollars.
Date: August 1, 1996
Partner: UNT Libraries Government Documents Department

What`s new in federal energy management: FEMP program overview. SAVEnergy program

Description: The SAVEnergy Program provides direct assistance to Federal agencies in identifying and implementing energy efficiency and water conservation measures. The Energy Policy Act of 1992 (EPAct) and Executive Order 12902 require that Federal agencies reduce the energy consumed in Federal buildings. The Executive Order increases the goal to a 30% reduction, compared with 1985, by 2005. In addition, agencies are required, to the maximum extent possible, to install all energy and water conservation measures with paybacks of less than 10 years. To help meet these goals, the US Department of Energy`s (DOE`s) Federal Energy management Program (FEMP) recently initiated the SAVEnergy Program. The SAVEnergy approach has three key elements: The Action Plan with recommended conservation actions and complete proposals on how the agency can implement them; The Action Team to implement the SAVEnergy Action Plan; The FEMPTracks database to evaluate the SAVEnergy Program (and all other FEMP programs) and record progress toward conservation goals.
Date: August 1, 1996
Partner: UNT Libraries Government Documents Department

Compatibility of refrigerants and lubricants with electrical sheet insulation under retrofit conditions

Description: To determine whether exposure to the original refrigerant/mineral oil would affect compatibility of sheet insulation with alternative refrigerant/lubricant after retrofit, sheet insulation was exposed at elevated temperature to the original refrigerant and mineral oil for 500 hours, followed by exposure to the alternative refrigerant and lubricant for 500 hours. Most of the sheet insulation materials exposed to the alternative refrigerant and lubricant (after an initial exposure to the original refrigerant and mineral oil) appeared to be compatible with the alternative refrigerant and lubricant. The only concern was delamination and blistering of the sheet insulation containing Nomex, especially after removal of absorbed refrigerant at high temperature. This was attributed to incompatibility of the adhesive and not to the Nomex itself. Embrittlement of the polyethylene terephthalate (PET) sheet was initially observed, but 2048 subsequent tests under extremely dry conditions showed that embrittlement of the PET materials was attributed to moisture present during the exposure.
Date: November 1, 1996
Creator: Doerr, R.G. & Waite, T.D.
Partner: UNT Libraries Government Documents Department

What`s new in federal energy management: FEMP program overview. Federal Energy Management Program

Description: The US government has an enormous cost-saving opportunity as the largest energy user in the world. In 1994, the government spent $8 billion for its 500,000 buildings, it vehicles, and process energy. The US Department of Energy (DOE), Federal Energy Management Program (FEMP) reduces the cost of government and makes it work better through energy efficiency, use of renewable energy, and water conservation. FEMP leads Federal energy efficiency efforts and helps Federal energy managers identify and procure the best, most cost-effective energy-saving projects. It does this through proactive problem solving; an aggressive emphasis on increasing the number and quality of projects; and effective partnerships among agencies, utilities, the private sector, and states. Partnerships lead to increased motivation and education and reduced barriers to successful procurement. As the lead organization implementing legislation and Presidential direction for Federal energy efficiency, FEMP administers an interagency energy committee and task force and collaborates with the DOE national energy laboratories. FEMP works with energy service companies, energy savings product manufacturers, and utilities. This partnership will lead to a $1 billion investment by companies willing to invest in return for a share of the energy cost savings. With FEMP project financing, audits, training and technical assistance, and new technology demonstrations, agencies overcome obstacles to achieving widespread energy efficiency.
Date: August 1, 1996
Partner: UNT Libraries Government Documents Department

High Energy-Efficiency Retrofits to Baltimore's Row Homes

Description: The purpose of the research project is to develop high-perfommnce, energy-eflicient retrofits of existing row homes in Baltimore, Maryland. These efficiency enhancements are to optimize building envelope improvements, mechanical equipment improvements and operational improvements to the highest cost-effective level. Furthermore, this project is to investigate and demonstrate the impact of high-performance energy-efficiency retrofit improvements on row homes in the Historic East area of Baltimore. Three homes awaiting renovation are planned to receive building envelope, mechanical system, and electrical system improvements that will improve their energy petiormance. An incremental additional cost ceiling of $4000 for the energy eftlciency improvements, beyond those normally installed, has been set by the project.
Date: April 19, 1999
Creator: Chalk, J.; Johnson, A.L.; Lipscomb, L. & Wendt, R.
Partner: UNT Libraries Government Documents Department

Polyplanar optic display for cockpit application

Description: The Polyplanar Optical Display (POD) is a high contrast display screen being developed for cockpit applications. This display screen is 2 inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. The new display uses a long lifetime, (10,000 hour), 200 mW green solid-state laser (532 nm) as its optical source. In order to produce real-time video, the laser light is being modulated by a Digital Light Processing (DLP{trademark}) chip manufactured by Texas Instruments, Inc. A variable astigmatic focusing system is used to produce a stigmatic image on the viewing face of the POD. In addition to the optical design and speckle reduction, the authors discuss the electronic interfacing to the DLP{trademark} chip, the opto-mechanical design and viewing angle characteristics.
Date: April 1, 1998
Creator: Veligdan, J.; Biscardi, C.; Brewster, C.; DeSanto, L. & Freibott, W.
Partner: UNT Libraries Government Documents Department

Optimization of the polyplanar optical display electronics for a monochrome B-52 display

Description: The Polyplanar Optical Display (POD) is a unique display screen which can be used with any projection source. The prototype ten-inch display is two inches thick and has a matte black face which allows for high contrast images. The prototype being developed is a form, fit and functional replacement display for the B-52 aircraft which uses a monochrome ten-inch display. In order to achieve a long lifetime, the new display uses a new 200 mW green solid-state laser (10,000 hr. life) at 532 nm as its light source. To produce real-time video, the laser light is being modulated by a Digital Light Processing (DLP{trademark}) chip manufactured by Texas Instruments (TI). In order to use the solid-state laser as the light source and also fit within the constraints of the B-52 display, the Digital Micromirror Device (DMD{trademark}) chip is operated remotely from the Texas Instruments circuit board. In order to achieve increased brightness a monochrome digitizing interface was investigated. The operation of the DMD{trademark} divorced from the light engine and the interfacing of the DMD{trademark} board with the RS-170 video format specific to the B-52 aircraft will be discussed, including the increased brightness of the monochrome digitizing interface. A brief description of the electronics required to drive the new 200 mW laser is also presented.
Date: April 1, 1998
Creator: DeSanto, L.
Partner: UNT Libraries Government Documents Department