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Marsh, Charles P.

Works: 72 works in 92 publications in 1 language and 824 library holdings
Genres: Conference papers and proceedings 
Roles: Author
Classifications: D103.425:9710,
Publication Timeline
Publications about Charles P Marsh
Publications by Charles P Marsh
Most widely held works about Charles P Marsh
Most widely held works by Charles P Marsh
Boiling manhole heat-loss calculations by Charles P Marsh( Book )
4 editions published in 1998 in English and held by 174 libraries worldwide
Military facilities that maintain and operate underground heat distribution systems (UHDS) need to make proper, cost-effective decisions concerning maintenance and repair. A poorly maintained manhole can become flooded from rainwater runoff, infiltrating ground water, or other sources. A flooded manhole will experience boiling, producing steam and causing a significant, and avoidable, increase in energy use. This report presents a method to estimate the amount of heat loss from a boiling manhole in a wide variety of situations. A set of correlations is developed to estimate manhole heat loss given a minimum of input parameters. Estimates of the energy cost for several sample calculations of typical manholes are included. Using current Army "Red Book" energy costs, typical flooded manholes can cost the DoD between $50,000 and $125,000 per year if they remain unrepaired
User guide and specifications for electrically isolating non-asbestos gaskets for high-temperature service by Charles P Marsh( Book )
2 editions published in 1999 in English and held by 174 libraries worldwide
Engineering life-cycle cost comparison study of barrier fencing systems ( Book )
2 editions published in 1999 in English and held by 163 libraries worldwide
Thermal evaluation of piping components used in a commercial underground heat distribution system by Charles P Marsh( Book )
3 editions published in 1996 in English and held by 119 libraries worldwide
Super Temp-Tite heat distribution piping is the only product of its design type approved by the Federal Agency Committee for Underground Heat Distribution Systems. This system employs a water spread limiting (WSL) design to restrict any leakage to a single segment of piping. WSL systems are intended to withstand continuous carrier medium temperatures of up to 450 deg F. On the basis of approval by the Federal Agency Committee for use at Class B, C, and D sites, the Super Temp-Tite WSL design is currently approved for the same applications by the Army Corps of Engineers. Recently the system manufacturer asked the Federal Agency Committee to approve use of its system at Class A sites - those with the harshest conditions. The U.S. Army Construction Engineering Research Laboratories (USACERL) was tasked to conduct mathematical modeling and simulations to help determine whether Super Temp-Tite meets the technical specifications for Class A applications. It is concluded that the polyurethane foam insulation in this WSL design would be exposed to temperatures well exceeding conservative design values, both in Class A applications and for operating temperatures below 350 deg F. Consequently, the system as now designed is not recommended for approval by the Federal Agency Committee
Investigation of preapproved underground heat distribution systems by Charles P Marsh( Book )
4 editions published in 1996 in English and held by 90 libraries worldwide
The Department of Defense maintains and operates approximately 6,000 mi of steam and hot water heat distribution system piping, mostly underground. Even a small decrease in heat transmission efficiency could waste large amounts of energy, natural resources, and lead to increased greenhouse gas production. USACERL investigated and evaluated the physical condition and general performance of drainable-dryable heat distribution systems installed since 1981. Inspections covered 35 heat distribution systems at 15 locations. Manhole inspections were performed and air pressure tests were successfully conducted on 5.18 mi of conduits. Many systems were not installed in accordance with criteria. Drains and vents were generally found to be dry; however, water or evidence of water in the manholes was common. Using a stringent standard of no more than a 1.0 psi drop in pressure after 30 min, 59 percent of the steel conduits passed while only 7 percent of the fiberglass reinforced plastic (FRP) conduits passed. With a more lenient standard of no more than a 5.0 psi drop in pressure after 30 min, 73 percent of the steel conduits passed while only 24 percent of the FRP conduits passed. In the more lenient case, normalizing to length, the failure rate of FRP-cased conduits was 4.82 times that of steel conduits
Freshwater corrosion in the Duluth-Superior Harbor : summary of initial workshop findings, 9 September 2004 ( Book )
1 edition published in 2005 in English and held by 6 libraries worldwide
Innovative coating system for corrosion prevention and temperature reduction in heat distribution manholes ( Book )
3 editions published in 2009 in English and held by 3 libraries worldwide
Heat distribution system (HDS) pipes and appurtenances are subject to significantly reduced service life when they are located inside manholes with severely corrosive environments. This report documents the demonstration of an innovative coating system for HDS components intended to protect pipes directly, by preventing the corrosion of steel, and indirectly, by reducing heat-related corrosive conditions within manholes. The demonstration was performed at Redstone Arsenal, AL. Field performance of the coating system components was mixed. The primer was straightforward to apply and showed no signs of degradation during the performance period. The topcoat essentially failed shortly after application by turning to powder. The topcoat failure mechanism appears to have been destruction of its acrylic binder by excessive heat, and the result was replicated in the laboratory through an extension of the initial oven tests. At this time it appears that topcoat material did not perform in accordance with the manufacturer's published product data. Because the primer material remains intact and is expected to offer corrosion protection in line with the product data, it represents a significant technology application for corrosion prevention and control. The report includes a return- on-investment calculation based on extension of HDS component service life. Lessons learned are documented
Condition prediction model and component interaction fault tree for heat distribution systems by Charles P Marsh( file )
1 edition published in 2001 in English and held by 2 libraries worldwide
Silicon carbide fiber-reinforced glass "Super Ceramic" composite preliminary design and predicted properties by Charles R Welch( Book )
1 edition published in 2013 in English and held by 2 libraries worldwide
Fury : robotic in-situ inspection/condition assessment system for underground storage tanks ( Book )
2 editions published in 2004 in English and held by 2 libraries worldwide
The Code of Federal Regulations (40 CFR 280-281) required all underground storage tanks (USTs) containing petroleum products to be brought into compliance to prevent environmental contamination through leakage. Replacing all older USTs can, in some cases, be prohibitively expensive. One alternative to requiring that tanks pass a precision tightness test is to retrofit USTs with cathodic protection for continued use. This report introduced a remote, robotic UST condition inspection/assessment system named Fury, developed to meet the need for more cost-effective and reliable tank condition assessment methods. Fury is a robotic crawler that moves inside a UST by means of magnetic wheels. It includes 90-degree transition arms for robot positioning on tank end caps and has a central pivot to allow for full motion of the steering head. The robot is designed to fit through an existing small-diameter pipe, which mitigates invasive tank entry during assessment and allows for non-destructive evaluation. Control of the Fury is accomplished through a tether attached to the rear of the robot. Fury uses ultrasonic transducers on a sensor sled to obtain approximately 90,000 wall thickness measurements per hour at over 95% of cylindrical-wall or end-cap locations. (5 tables, 12 figures, 13 refs.)
Effect of boiling on deposition of metallic colloids by Hitesh Bindra( file )
1 edition published in 2010 in English and held by 2 libraries worldwide
In this study the relationship between heterogeneous nucleate boiling surfaces and deposition of suspended metallic colloidal particles, popularly known as crud or corrosion products in process industries, on those heterogeneous sites is investigated. Various researchers have reported that hematite is a major constituent of crud which makes it the primary material of interest; however the models developed in this work are irrespective of material choice. Qualitative hypotheses on the deposition process under boiling as proposed by previous researchers have been tested, which fail to provide explanations for several physical mechanisms observed and analyzed. In this study a quantitative model of deposition rate has been developed on the basis of bubble dynamics and colloid-surface interaction potential. Boiling from a heating surface aids in aggregation of the metallic particulates viz. nano-particles, crud particulate, etc. suspended in a liquid, which helps in transporting them to heating surfaces. Consequently, clusters of particles deposit onto the heating surfaces due to various interactive forces, resulting in formation of porous or impervious layers. The deposit layer grows or recedes depending upon variations in interparticle and surface forces, fluid shear, fluid chemistry, etc. This deposit layer in turn affects the rate of bubble generation, formation of porous chimneys, critical heat flux (CHF) of surfaces, activation and deactivation of nucleation sites on the heating surfaces. Several problems are posed due to the effect of boiling on colloidal deposition, which range from research initiatives involving nano-fluids as a heat transfer medium to industrial applications such as light water nuclear reactors. In this study, it is attempted to integrate colloid and surface science with vapor bubble dynamics, boiling heat transfer and evaporation rate. Pool boiling experiments with dilute metallic colloids have been conducted to investigate several parameters impacting the system. The experimental data available in the literature is obtained by flow experiments, which do not help in correlating boiling mechanism with the deposition amount or structure. With the help of experimental evidences and analysis, previously proposed hypothesis for particle transport to the contact line due to hydrophobicity has been challenged. The experimental observations suggest that deposition occurs around the bubble surface contact line and extends underneath area of the bubble microlayer as well. During the evaporation the concentration gradient of a non-volatile species is created, which induces osmotic pressure. The osmotic pressure developed inside the microlayer draws more particles inside the microlayer region or towards contact line. The colloidal escape time is slower than the evaporation time, which leads to the aggregation of particles in the evaporating micro-layer. These aggregated particles deposit onto or are removed from the heating surface, depending upon their total interaction potential. Interaction potential has been computed with the help of surface charge and van der Waals potential for the materials in aqueous solutions. Based upon the interaction-force boundary layer thickness, which is governed by debye radius (or ionic concentration and pH), a simplified quantitative model for the attachment kinetics is proposed. This attachment kinetics model gives reasonable results in predicting attachment rate against data reported by previous researchers. The attachment kinetics study has been done for different pH levels and particle sizes for hematite particles. Quantification of colloidal transport under boiling scenarios is done with the help of overall average evaporation rates because generally waiting times for bubbles at the same position is much larger than growth times. In other words, from a larger measurable scale perspective, frequency of bubbles dictates the rate of collection of particles rather than evaporation rate during micro-layer evaporation of one bubble. The combination of attachment kinetics and colloidal transport kinetics has been used to make a consolidated model for prediction of the amount of deposition and is validated with the help of high fidelity experimental data. In an attempt to understand and explain boiling characteristics, high speed visualization of bubble dynamics from a single artificial large cavity and multiple naturally occurring cavities is conducted. A bubble growth and departure dynamics model is developed for artificial active sites and is validated with the experimental data. The variation of bubble departure diameter with wall temperature is analyzed with experimental results and shows coherence with earlier studies. However, deposit traces after boiling experiments show that bubble contact diameter is essential to predict bubble departure dynamics, which has been ignored previously by various researchers. The relationship between porosity of colloid deposits and bubbles under the influence of Jakob number, sub-cooling and particle size has been developed. This also can be further utilized in variational wettability of the surface. Designing porous surfaces can having vast range of applications varying from high wettability, such as high critical heat flux boilers, to low wettability, such as efficient condensers
Robotic Underwater Corrosion Inspection/Assessment of Sheet Pile Along Two Rivers at Cleveland, Ohio ( Book )
2 editions published in 1999 in English and held by 2 libraries worldwide
The objectives of this study were to (1) perform a quantitative underwater corrosion inspection and assessment of sheet pile along the Cuyahoga River at Cleveland and (2) use the measured material thicknesses and corrosion rates to predict a probable future range of sheet pile thickness. The work was conducted in response to The Water Resources Development Act of 1996, Section 438, which directs the Army to project the cost of repairing and/or replacing all sheet pile along the Cuyahoga River. This Phase 2 work was a follow-on condition assessment, conducted by the U.S. Army Construction Engineering Research Laboratory (CERL), using a remotely controlled submersible robotic inspection system in conjunction with conventional hand-held acoustic thickness probes. Data were collected from 12 sites over a period of 1 week. Based on the data sample collected during the limited time frame of the study, a bounded, steady-state projection of future sheet pile condition was made for each site. Because corrosion rates correlate directly to the degree of zebra mussel infestation, these condition projections may be too conservative if zebra mussel infestation proceeds significantly faster than assumed in this study
Lipari landfill piping network corrosion condition assessment and service life prediction analysis ( Book )
2 editions published in 2008 in English and held by 2 libraries worldwide
The Lipari Landfill, located in Mullica Hill, NJ, accepted hazardous chemical waste for most of its service life, until operations were discontinued in 1971 by the New Jersey Department of Environmental Protection. After being designated as a federal Superfund site in 1982, a containment structure was built starting in 1983. Further remediation continued into the 1990s, including the construction of injection and extraction wells to eliminate chemical residues in the contained ground water. The water circulated through the piping network of the injection/ extraction well system has been determined to be corrosive, which could lead to a premature failure of the pipe. The objective of this study was to analyze the current condition of the piping network and changes that have occurred over time, to determine the corrosion rate, and to estimate the remaining service life of the pipes. Owing to the limited amount of pipe material-loss data available, various analytical methods were used to interpret those data and develop a supportable engineering judgment. The report describes these analyses and presents the data obtained
A study of solute transport of radiolysis products in crud and its effects on crud growth on PWR fuel pin by Hyun-Jong Joe( file )
1 edition published in 2011 in English and held by 2 libraries worldwide
This research examines the effect of radiolysis species (H2, O2, and H2O2) upon crud deposition and growth and also the effect of their concentration within the crud. A 3-D transient diffusion model has been developed to simulate solute transport of these radiolysis products in porous crud layer. It attempts to explain the behavior of the porous crud growth on PWR fuel pins. This model employs a system of coupled mass transport and chemical interactions as the source term, which make the problem non-linear. A Monte Carlo technique is adopted to simulate the behavior of the different species. The direct application of this study to nuclear engineering research is to aid in the design of reactors with higher performance. With the deregulation of the U.S. power market, there is an incentive to extend the life and to enhance the performance and efficiency throughout the power generation industry. This requires higher power levels for existing nuclear reactors, which can cause the occurrence of an Axial Offset Anomaly (AOA). Approximately 20 U.S. PWRs have experienced significant Crud-Induced axial Power Shift or CIPS (also referred to as AOA), an unexpected measured shift in axial power distribution from predicted values. Such abnormal performance has driven the Nuclear Regulatory Commission (NRC) to impose lower reactor power levels at the aging reactor fleet for safety reasons. While much effort has been focused on finding the causes of AOA, a detailed understanding has not yet been developed, which predicts its growth rate over the fuel lifetime, because of the complexity of its causes. Porous crud deposits in the form of the non-stoichiometric nickel-ferrite (FexNi3-xO4) have been observed on the Zircaloy cladding surface exposed to the subcooled boiling length of the fuel rods. The thermal processes in this layer, which result in the holdup of boron (10B and 11B), cause a larger than predicted decrease in the neutron flux. Research suggests that the buildup rate of metallic corrosion products from the reactor vessel and primary coolant loop can be accelerated. Boron holdup in the crud under the presence of radiation is likely higher, especially through radiolysis and irradiation damage on the cladding. For the modeling of solute transport of radiolysis products, the present analysis considered two competing solute transport mechanisms within the porous crud deposits: molecular diffusion with a source term from the radiolysis and mass convection. Initially, the analytical model for the equilibrium state using the Laplace equation is summarized from the author⁰́₉s earlier work. Later, a transient diffusion equation was introduced using a random walk Monte Carlo technique coupled with a constant source term from radiolysis. This procedure by Ragheb was modified from a cartesian to a cylindrical geometry random walk. The molecular radiolysis species of hydrogen, oxygen, and hydrogen peroxide are the most stable radiolysis products that directly affect: (1) the oxidation-reduction reactions at the interface of crud/cladding and (2) the formation of nickel ferrite within the crud deposit. In a post-AOA crud, Bonaccordite (Ni2FeBO5) is also observed in the nickel-ferrite. It is recommended that further investigations be performed incorporating the electrochemical interactions of these electroactive species. More detailed consideration of convective transport should be coupled with diffusion with a source term of radiolysis
Effectiveness of counter-drug border fencing funded by the U.S. Department of Defense : analysis, requirements, and proposed fencing system design by Charles P Marsh( Book )
1 edition published in 1999 in English and held by 2 libraries worldwide
Thermal performance of microencapsulated phase change material slurry by Charles P Marsh( Book )
3 editions published in 2008 in English and held by 2 libraries worldwide
The efficiency of a pumped heat-transfer system can be greatly increased by incorporating a phase-change material (PCM). Because PCMs have greater thermal capacity than the carrier fluid, owing to their latent heat of phase change, they can increase the amount of heat transfer at equivalent volumetric flow in a heat exchanging environment. These materials tend to clog heat-transfer and distribution pipes, but previous research has indicated that the problem may be solved by encapsulating the PCMs. This report documents an investigation of the thermophysical properties of PCMs enclosed in micro-scale capsules. The study also addressed microcapsule durability against abrasion and chemicals, and the relation of fluid temperature and particle volume fraction on viscosity. The results of this research show that the total heat capacity of microencapsulated PCM (MPCM) slurries is enhanced significantly, even when using low volume fractions. MPCM slurries have potential to decrease costs and improve energy efficiency for all pumped cooling applications
Strategic plan outline for the Army Utilities Modernization Program : fiscal years 2008-2013 by William T Brown( Book )
2 editions published in 2006 in English and held by 2 libraries worldwide
Utilities privatization is considered the preferred method for modernizing and recapitalizing utility systems in the Army. From Fiscal Year (FY) 1998 to FY 2002, the Army implemented a Utilities Modernization Program that focused on upgrading thermal utilities (i.e., central heating and air-conditioning/ refrigeration plants and the respective distribution systems) to the most life-cycle cost-effective technology. The current Utilities Modernization Program from FY08-13 will focus not only on central heating and air-conditioning/ refrigeration systems, but also on electric, natural gas, potable water, and wastewater systems. This program is supported by initiatives/actions under the Army Energy and Water Campaign Plan for Installations. This report outlines a candidate program management strategy for the Utilities Modernization Program and outlines best practices for performing life-cycle cost analyses for central energy plants and each type of utility system either exempt from utilities privatization or pending exemption from privatization
Robotic underwater corrosion inspection/assessment of sheet pile along two rivers at Cleveland, Ohio : Cuyahoga River bulkhead study, phase 2 report by Charles P Marsh( Book )
2 editions published in 1999 in English and held by 1 library worldwide
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