Engineering and Expeditionary Warfare Center

Publications

NAVFAC EXWC Energy and Public Works Technical Publications

Most of the publications listed here are produced by the Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC) or its predecessor organizations.
    Naval Facilities Engineering Service Center (NAVFAC ESC or NFESC)
    Naval Civil Engineering Laboratory (NCEL)
    Naval Energy and Environmental Support Activity (NEESA)
    Navy Environmental Support Office (NESO)

DOCUMENTS

 

Technology Validation (Techval) Reports

Distribution of these reports are limited to U.S. Government agencies and their contractors.  Authorized NAVFAC users can see the full report at on the NAVFAC Portal on the EXWC PW61 page.  All other requests for the report shall be made in writing to Naval Facilities Engineering Command Engineering and Expeditionary Warfare Center.

TITLE DATE ABSTRACT
BIOFUEL EMISSIONS AND FUEL SAMPLE ANALYSIS FOR NAVFAC EXWC, PORT HUENEME, CA  Mar-14 A contractor performed emissions, electrical performance, fuel characteristics and fuel economy testing on the use of hydrotreated renewable marine
diesel (HRD) – 76 biofuel in a 2,500 KW mobile diesel generator. The fuel was a 50/50 mix of HRD76 and ultra low sulfur diesel fuel (ULSDF) F76. The
generator was provided by the Mobile Utilities Support Equipment (MUSE) Division. Testing was performed on site at the EXWC MUSE Yard at NBVC Port Hueneme, CA.
HEAT PIPE (WRAP AROUND) FOR NAVAL AIR STATION, PENSACOLA, BUILDING 3644 Oct-13 Techval determined that the use of Heat Pipes is not a viable means of saving energy in retrofit applications similar to the one in this test. However, this technology can be cost effective for new construction or where the existing Air Handling Unit (AHU) needs to be replaced. Heat Pipes are best suited for dehumidification applications with reheat. NAVFAC EXWC contracted the design, installation, and monitoring of the performance of selected heat pipe products at Naval Air Station Pensacola, FL.
SPECTRALLY ENHANCED LIGHTING, WASHINGTON NAVY YARD BUILDING 166 Sep-13 Techval evaluated Spectrally Enhanced Lighting (SEL) at Building 166 at the Washington Navy Yard in August and September 2008. Techval performed a retrofit of the existing lighting system, replacing existing lamps with SEL lamps and then either delamping and/or installing lower ballast factor ballasts. Techval determined that SEL is a viable means of saving energy by using color enhanced light spectrum to offset any reduced illumination levels. This report offers guidelines and an assessment tool to help the facility manager determine if this technology is applicable for a candidate facility as this technology has many attractive payback applications in the under 10 years range.
DUCT SEALANT DEMONSTRATION RESULTS Aug-13 Duct sealant technology was demonstrated on four buildings at four different Navy facilities around the country. The four demonstration buildings were 1) the DeFlorez Building at NAVAIR Orlando, FL; 2) Building 1268 at the Naval Station Newport, RI; 3) Building 865 at the Naval Base Kitsap in Bremerton, WA; and 4) Building 3339 at the Naval Base San Diego, CA. The four buildings represent four different climatic conditions and different air distribution systems types. Data on thermal energy and fan power was collected before and after the duct sealant material was applied. Annual energy and cost savings were predicted based on a typical weather year for each site.
ELECTRONICALLY COMMUTATED MOTOR (ECM) TECHNICAL DEMONSTRATION AND COST ANALYSIS Aug-13 A technical evaluation has determined that installing or retrofitting Fractional Horsepower (FHP) Electronically Commutated Motors (ECM) in place of older Permanent-Split Capacitor (PSC) FHP motor technology is a viable means of saving energy. The objective of the demonstration was to assess and evaluate the potential for ECM technology to save energy when applied to FHP rated motors in Heating, Ventilation, and Air-Conditioning (HVAC) systems used throughout naval facilities. This report quantifies the measured energy savings from the tests conducted for the Naval Facilities Command Engineering and Expeditionary Warfare Center (NAVFAC EXWC).
INDUCTION AND LED LIGHTING FOR OUTDOOR PARKING AREAS DEMONSTRATION RESULTS Aug-13 This report summarizes the findings from demonstrations of induction and light-emitting diode (LED) lighting systems applied to parking areas at US Naval installations. Techval determined that the application of LED lighting technologies is a viable means to reduce energy consumption in outdoor lighting applications but cost effectiveness is highly dependent on utility rates, operating hours, and equipment costs.
INTERIOR LED LIGHTING TECHNOLOGY DEMONSTRATION RESULTS AT BUILDING 1573 MCAGCC, TWENTYNINE PALMS, CA Aug-13 Techval determined that the use of light-emitting diode (LED) lighting is a viable means of saving energy for interior lighting and the limited exterior applications covered by this evaluation. (Techval has completed evaluations of exterior LED lighting such as parking lot applications that are covered in separate reports.) This report offers guidelines and an assessment tool to help the facility manager determine if this technology is applicable for a candidate facility. If the guidelines and assessment tool indicate the potential for energy savings for the facility, Techval strongly recommends that the facility manager investigate the use of LED lighting as a part of their energy management plans.
ORGANIC RANKINE CYCLE GENERATOR COST ANALYSIS Aug-13 Organic Rankine Cycle (ORC) generators can generate fuel-free, emission free electricity from low grade waste heat from various sources. These sources include stationary internal combustion engines, biomass boilers; industrial boilers & process heat, co-produced fluids from oil or gas, geothermal, and concentrated solar thermal. The objective of this project was to determine if an ORC generator, when deployed in the field, would have a payback less than the manufacturer’s estimated lifetime of 20 years.
OCCUPANCY-BASED TEMPERATURE CONTROL TECHNOLOGY DEMONSTRATION RESULTS
AT BUILDING 423 NAS OCEANA VA
Jan-13 This report summarizes the findings from a demonstration of an occupancy-based heating, ventilating, and air conditioning (HVAC) temperature control technology installed in a Navy facility. The objective of this demonstration is to assist Naval Facilities Engineering Command-Engineering and Expeditionary Warfare Center (NAVFAC-EXWC) in assessing and evaluating the potential energy savings and cost effectiveness of an occupancy-based temperature control technology, The objective of this demonstration is to quantify the energy reduction in the space cooling, space heating, and/or ventilation systems resulting from the adaptation of this control technology to an existing dormitory-type (bachelor enlisted quarters) facility (building 423) at the Naval Air Station (NAS) Oceana in Virginia Beach, VA.
DEMONSTRATION OF SAND FILTER TECHNOLOGY Mar-12 This report summarizes the findings from a demonstration of sand filter technology to determine whether the technology will save energy with a simple payback within the projected life of the equipment. The Techval program performed the evaluation at the Naval Air Station Lemoore, CA. The evaluation period of two years began with one year of sand filter operation. During the second year, the sand filter was removed from service to develop the baseline data.
HEAT PIPE TECHNOLOGY Mar-12 Techval determined through this technical evaluation that Heat Pipes are a viable means of saving energy for applications in which an air handling unit is scheduled to be installed. When a facility manager or contractor is installing an air handler to replace an old unit or an air handler is being installed in a new building, the heat pipe is economically viable. Based on this demonstration, Techval recommends that heat pipes be installed in air handling units which require humidity control and use little or no recirculated air.
CO2 VENTILATION CONTROL AT NAVAL AMPHIBIOUS BASE LITTLE CREEK NORFOLK, VA; BUILDING 3607, GALLEY Feb-10 This report offers guidelines and an assessment tool to help the facility manager determine if this technology is applicable for a candidate facility. If the guidelines and assessment tool indicate the potential for energy savings for the facility, Techval strongly recommends that the facility manager investigate the use of CO2 Ventilation Control as a part of their energy management plans.
DAYLIGHTING Feb-08 A recent DoD renewable study concluded that the most cost effective renewable solar technology is daylighting. Several DoN installations were well ahead of the study and have successfully implemented daylghting projects. The details of the buildings and projects vary. Some projects installed skylights and daylighting controls. Some buildings already had skylights or significant window area, and those projects just installed daylighting controls. Some projets bundled daylighting controls with lighting upgrades.
TECHNICAL EVALUATION OF PREMIUM AIR FILTRATION Feb-08 This Techval project was to determine if significant fan energy in air handling units (AHU) could be saved through the installation of premium extended surface air filters. The determination was to occur from data obtained in real world installations. Ideally, the savings would pay for the additional cost of the filter in addition to the engineering and construction costs required to facilitate the installation of these filters. Since a filter could not be found from a basic engineering analysis that showed the potential to save enough energy to pay for the additional costs, a more detailed engineering analysis was performed. This document is a result of that detailed analysis which proves that a simple payback of ten years or less of filter cost and installation from saved fan energy does not occur when a 2” pleated filter is replaced with a 12” extended surface filter.
CENTRALIZED DIMMING CONTROL FOR HIGH-INTENSITY DISCHARGE LIGHTING DEMONSTRATION RESULTS Dec-07 This report summarizes the findings from demonstrations of four different centralized dimmers applied to high-intensity discharge (HID) lighting systems installed at two locations on the Naval Base Ventura County (NBVC) in Port Hueneme, California. Dimmers can be installed on common lighting power circuits and typically do not require modifications to individual lights, such as the installation of dimming ballasts. The units reduce power requirements by reducing the applied voltage on the power circuits after the lamps have struck and are fully lit. This reduces energy consumption but also reduces illumination (light level) by a similar percentage.
HIGH PERFORMANCE (SUPER) T8 FLUORESCENT LIGHTING May-07 High performance T8 linear fluorescent lighting, also known as Super T8 lighting, yield significant energy savings over conventional T8 lighting systems due to the longer life and greater efficacy of the components. However, the improved performance characteristics come with an additional cost premium and may not be economical for all Navy/Marine Corps installations.
THERMAL DESTRATIFICATION TECHNOLOGY OVERVIEW AND DEMONSTRATION PROGRAM RESULTS Jan-07 The energy usage and economic feasibility of installing state-of-the-art thermal destratification technology at Navy activities is evaluated. Techval installed thermal destratification systems at two (2) Navy facilities. An evaluation of the feasibility of destratification technology is conducted. The monitoring data collected at the sites is used to determine the actual thermal destratification, energy usage, and cost savings etc. This data, along with lessons learned from the project, were used to qualify the usefulness of destratification technology in future Navy energy projects.
LED AIRFIELD LIGHTING ANALYSIS Dec-06 Techval completed an assessment of LED Airfield Lighting. Lighting used in standard airfield applications, such as runway and taxiway lighting, is powered by LED lights. Testing and/or evaluation have been conducted by Naval Base Coronado, the Federal Aviation Administration (FAA), and Esource. Since sufficient validation information has already been provided by other sources for this technology, it was not demonstrated. Instead, a detailed summary of the existing product information, including performance and savings data is presented.
MAGNETIC BEARING CHILLER COMPRESSOR DEMONSTRATION Aug-06 This report presents a preliminary analysis of an Oil-Free Magnetic Bearing Chiller Compressor demonstration. The compressor is rated at 60 – 90 tons and has an integral variable frequency drive (VFD), variable inlet vanes and is controlled by an internal microprocessor. The compressor is advertised as being up to 10% more efficient than existing chillers at full load and 30% more efficient at part load.
VENDING MISER ANALYSIS Feb-06 Techval has completed an assessment of Vending Miser Technology. As much validation already exists for this technology, it was not demonstrated. Instead, a detailed summary of the existing product information, including performance and savings data is presented.

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