Bureau Of Engineering Research Articles

Coolant Hydrodynamics in the PWR Reactor Core with TVS-Kvadrat of Various Designs

. The paper presents the results of experimental studies of the hydrodynamics of the coolant in the core of the PWR reactor with fuel assemblies “TVS-Kvadrat” of various designs. Experimental studies of hydrodynamics consisted in studying the velocity fields and the process of cross-flow of coolant between adjacent fuel assemblies “TVS-Kvadrat” of various designs in homogeneous and mixed cores on large-scale experimental models, including fragments of two adjacent fuel assemblies “TVS-Kvadrat” and a gap between them. The test models differ in the number of installed grids, this is due to the fact that in a homogeneous core the hydraulic load along the height of the fuel assemblies is identical, and in a mixed core the hydraulic load is uneven due to the different number of installed grids. The hydrodynamics of the coolant has been studied on an aerodynamic open-loop based on the theory of hydrodynamic similarity, using individually calibrated pneumometric sensors. Based on the data obtained, the fields of local axial and transverse velocities in various sections along the length of the studied section of the test models have been constructed. The fields of local dimensionless transverse and axial flow velocities in the fuel bundles and the gap between the fuel assemblies “TVS-Kvadrat” of the PWR reactor core have been studied. Peculiarities of the process of transverse flow between adjacent “TVS-Kvadrat” of a homogeneous and the mixed core of the PWR reactor have been revealed. The results of experimental studies have been transferred to the developer of “TVS-Kvadrat”, that is JSC “Experimental Design Bureau of Mechanical Engineering named after I. I. Afrikantov”, for further use in justifying the design and operating modes of a nuclear power plant.

The Influence of Internal Control, User Capability and Information Technology on the Quality of the Accounting Information System at PT VK

This study aims to determine the effect of internal control, user capabilities, and information technology utilization on the quality of accounting information systems at PT VKP. This study uses a quantitative method. The data were obtained by distributing questionnaires to the company’s employees and then analyzed using multiple linear regression as a statistical analysis tool. The sample was 50 employees of PT VKP, those working in the Bureau of Finance, Bureau of Human Resources, General Affairs and Information Technology, Bureau of Internal Control System, Bureau of Marketing, Bureau of Operational, and Bureau of Engineering and Management System. The results of this study indicate that both partially and simultaneously, the variables of internal control, user capabilities, and information technology utilization have a positive and significant impact on the quality of accounting information systems. This shows that the company has well-executed internal control, quality user capabilities, and sophisticated technology that can help a company improve the quality of the accounting information systems used. The value of the coefficient of determination is 0.604, indicating that 60.4% of the quality of accounting information systems (Y) is influenced by internal control (X1), user capabilities (X2), and information technology utilization (X3), while the remaining 39.6% influenced by other variables not examined here. It suggests that further research includes other variables, such as the developments in information technology and top management support.

Reflections on early lunar base design – From sketch to the first moon landing

This paper traces the early ideas of lunar architecture developed by the US and Soviet space programs. Starting with a historical overview of those achievements, highlighting specific engineering, architectural, and design elements; illustrated with images and drawings. Some of them will be described in more detail, showing the design and decision-making process from the first sketch to its implementation.One example of the great engineering and management capabilities is the development and inclusion of the deployable lunar roving vehicle (LRV). Other examples include the project DLB Zvezda by Barmin's Design Bureau of General Engineering that was under development between 1962 and 1974, and a US project Horizon – a study to set up a Lunar Military outpost conducted in 1959. The paper includes personal statements from astronauts and cosmonauts, as well as people involved along design and implementation processes.Based on a historical overview of achievements, this paper highlights particular architectural and design unique approaches that defined design strategies for creating space systems, spacecraft and habitats for decades to follow.

HISTORY OF DEVELOPMENT AND MANUFACTURE OF TRACTORS AND PRIME-MOVERS BY THE STATE ENTERPRISE «KHARKIV DESIGN BUREAU OF ENGINEERING NAMED AFTER A. A. MOROZOV» AND STATE ENTERPRISE «MALYSHEV PLANT» (REVIEW ARTICLE)

The review article systematizes information and studies the history of designing tractors and prime-movers at the State Enterprise «Kharkiv Design Bureau for Mechanical Engineering named after A. A. Morozov» and their manufacture by the State Enterprise «Malyshev Plant » from the origin of such production in Kharkiv to the present time. The role of Kharkiv in providing the country with special equipment is revealed. Detailed biographical information about chief designers of this technique (B. N. Voronkov, N. G. Zubarev, M. N. Shchukin, A. I. Avtomonov, M. D. Borisyuk, A. D. Motrich, M. P. Kalugin, P. I. Sagir, B. I. Kalchenko) provided, their role in the development and improvement of designs of special-purpose machines is indicated. The main technical characteristics of basic models of tractors and prime-movers are presented. The main problems in the production of these types of equipment are mentioned. The article contains information about various modifications of AT-T, their main differences and purposes are indicated. Keywords: tractor, prime-mover, SE «Kharkiv Design Bureau of Engineering Named after A. A. Morozov», SE «Malyshev Plant», National Technical University «Kharkiv Polytechnic Institute»

Preparation and study of Al-Cu-Ni ternary alloys by powder metallurgy techniques

Aluminum combinations are broadly utilized for some building application since it has high explicit quality, firmness, electrical conductivity, little coefficient of warm extension and wears obstruction. Mostly copper and nickel were used as an alloying element in aluminum composite to build high-temperature class. The powder metallurgy method utilized to deliver Al-Cu-Ni combinations. In any case, P/M strategy is more qualified for setting up this amalgam since extensive thickness distinction, and low common solvency of aluminum and Ni presents the issue in acquiring uniform scattering of Ni in aluminum combinations utilizing the throwing methods. Based on the experiment, Ni alloying elements used up to 5% to make Al-Cu-Ni ternary alloy. In this paper, a test work done is shown on the material science research facility presented in the bureau of Mechanical Engineering, MMMUT University, Gorakhpur, which demonstrates the hardness and rigidity of the sintered Al-Cu-Ni compounds as a component of temperature and compaction weight.

О СТРУКТУРЕ СЕВЕРО-АТЛАНТИЧЕСКОГО ТЕЧЕНИЯ В МАЕ–ИЮНЕ 1990 г.

О СТРУКТУРЕ СЕВЕРО-АТЛАНТИЧЕСКОГО ТЕЧЕНИЯ В МАЕ–ИЮНЕ 1990 г.

Experience of the development and testing of an integrated bottom-cable seismic station

The results of the development and marine tests of a bottom-cable seismic station designed for operation in seismic networks, conceivably in the areas of the development of offshore oil and gas fields in the Arctic, are considered. In connection with the specified range of problems, the station possesses a quite wide frequency band of the seismic signal recording (from 100 s to 500 Hz), supports remote network access, and has robust design and a flexible service system. The system’s special feature is the use of seismic molecular–kinetic (electrochemical) geophones for the entire frequency range. The station has passed laboratory and field tests and is ready for trial operation. The bottom-cable seismic station has been developed by the Institute of Oceanology (IO) of the Russian Academy of Sciences (RAS), Experimental Design Bureau of Oceanological Engineering of the RAS, CJSC Geonodal Solutions, and LLC Marine Innovations under the overall supervision of the IO RAS.

Long-term field performance of porous asphalt pavement in China

Porous asphalt (PA) pavement has been widely used in the USA, Europe and Japan for the benefit of quick drainage in rainy days and noise reduction. Its application in China, however, is very limited. A PA pavement section, therefore, was paved in Yan-Tong highway in Jiangsu Province as a trial. Since China has no specifications for the design and construction of PA pavements, the Construction Bureau of Traffic Engineering in Jiangsu Province is very concerned with the field performances of the test section in hope of validating and improving the PA pavement designs. Thus, a five-years tracking programme was launched to collect performance data of the PA section and two control sections, the stone mastic asphalt section and the dense graded asphalt section. The investigation range covers permeability, skid resistance (microtexture level and macrotexture level), rutting, roughness and noise on truck lane, passenger car lane and overtaking lane. The overall assessment is that the three pavement sections provide satisfactory performances over the investigation period. However, the unique merit associated with the PA section, that is to drain the water and reduce noise, witnesses a substantial loss along with time.

Lessons in Capital Program Delivery

Lessons in Capital Program DeliveryIn the 1980's and 1990's the City of Los Angeles' Bureau of Engineering (the Bureau) implemented two large wastewater capital programs, one to cease ocean discharge of sludge and one to achieve full secondary treatment of all wastewater. The former program experienced high change order costs during construction and the latter had several construction contracts end in protracted litigation. Based...Author(s)R. Tim HaugKen R. ReddWayne A. LawsonHarshad B. ShahSourceProceedings of the Water Environment FederationSubjectSession 53: Capital Improvement Programs: Using New Ways to Solve Old ProblemsDocument typeConference PaperPublisherWater Environment FederationPrint publication date Jan, 2008ISSN1938-6478SICI1938-6478(20080101)2008:12L.4140;1-DOI10.2175/193864708788752359Volume / Issue2008 / 12Content sourceWEFTECFirst / last page(s)4140 - 4153Copyright2008Word count144

Implementation and performance of a matrix organization structure

This paper presents a case study in the implementation and use of a matrix organization. This paper describes the matrix organization installed at the City of Los Angeles, Bureau of Engineering. The work explains how the need for a matrix structure was identified, reviews the creation of the matrix, describes the problems associated with the implementation of the new structure, and evaluates the effectiveness of the project management process within the matrix organization. The study finds that although implementation problems have occurred, the performance of the organization while operating under a matrix structure has improved with respect to project delivery.

Strategic Planning in Public Sector Engineering Organization

In today's engineering and construction industries, the concepts of company loyalty, traditional competitors, and employee development are changing at a pace that has not previously been encountered in postindustrial times. In response to these changing concepts, private and public organizations alike are increasing their emphasis on long-term or strategic planning. This paper introduces strategy planning, describes the expected results of strategic planning efforts in engineering and construction organizations, and provides a case study illustration of the process for the City of Los Angeles, Bureau of Engineering (a 1,000-person public sector architectural and engineering organization). The case study describes the seven steps used by the Bureau starting with building a strategic planning team to ending with evaluation of the implementation effort. Lessons learned from the case study are used to identify several recommendations for future planning efforts in the area of strategic planning.

A Project Management Training Program

In March 1998, the City of Los Angeles, Bureau of Engineering, completed a nine-month training effort including over 30,000 hours of project management training for over 1,000 employees. This work documents the challenges faced and the solutions formulated during the course of the training. The two separate needs assessments done prior to developing the training program are explained. The development of the course contents for each of the three elements included in the training program—system optimization, project management technical tools, and human relations/organizational development training—is described. The multiple-level training assessment processes of measuring the instruction, measuring the learning, maintaining the learning, and utilizing the learning are explained and illustrated with examples and results. The lessons learned in managing the training effort, particularly with respect to the logistics of training so many people in such a short amount of time, are documented for managers facing...

Implementation of Project Management in Public Engineering Organization

The Bureau of Engineering is a part of the City of Los Angeles' Department of Public Works and is responsible for the planning, design, and construction management of capital improvement projects for the city. In February 1997, the Bureau of Engineering executive staff and the Board of Public Works mandated a dramatic shift to improve project delivery. All of the non-wastewater elements of the Bureau were organized into a program-based matrix organization with a Project Manager as the focus for project delivery with project conception-to-conclusion responsibility. This paper describes the project management method of project delivery being implemented at the City of Los Angeles Bureau of Engineering and explains the implementation elements and their status. The paper reviews the new project management organizational structure and the organizational options considered by the Bureau. The work details the roles and responsibilities for the project delivery team members. The new tools used to manage projects ...

Continuous Improvement Planning: Case Study of Basic Process Reengineering

Public agencies engaged in the planning, design, and construction of utility infrastructure systems have developed basic administrative processes, policies, and procedures for engineering services such as production of design contract documents and handling of construction management documents. The purpose of these procedures is to minimize costs and optimize quality of the design drawings and the finished, constructed product through conformity to a system that is known to “work well.” Despite the fact that these procedures and policies have served many agencies well over the years, the world of public works engineering and construction has become one of ever-increasing public scrutiny, necessitating improved engineering/project quality without an increase in project cost. Professional service providers have found ways to do this through a process known as “continuous improvement.” This process provides a means by which a professional service provider can effectively generate new ways to do things faster, better, and cheaper. This paper defines the continuous improvement concept, and presents a case study of the continuous improvement planning process undertaken by the City of Los Angeles, Department of Public Works, Bureau of Engineering, Environmental Engineering Division.

Dolores Archaeological Program: Anasazi Communities at Dolores: Middle Canyon Area. Allen E. Kane and Christine K. Robinson, compilers. United States Department of the Interior, Bureau of Reclamation, Engineering and Research Center, Denver, 1986. xxv + 1154 pp., biblio., appendices, tables, figures. No charge (paper).

Dolores Archaeological Program: Anasazi Communities at Dolores: Middle Canyon Area. Allen E. Kane and Christine K. Robinson, compilers. United States Department of the Interior, Bureau of Reclamation, Engineering and Research Center, Denver, 1986. xxv + 1154 pp., biblio., appendices, tables, figures. No charge (paper). - Volume 54 Issue 3

The Navy, Industry, and Diesel Propulsion for American Submarines 1914–1940

ABSTRACTThe United States Navy seized the initiative in diesel development and production after World War One as a direct result of its experience with poorly designed submarine engines produced by the New London Ship and Engine Company (Nelseco). Until 1919, the Navy left the development of submarine diesels to the private sector. However, the limits of Nelseco's expertise and the unwillingness of its parent company, Electric Boat, to correct the torsional vibration problems caused by the Nelseco machinery, led the Navy to alter its policy dramatically. Encouraged by the success of its Bureau‐MAN diesels, the Bureau of Engineering acquired a production license from the diesel manufacturer Maschinenfabrik Augsburg‐Nürnburg (M.A.N.) to supplement the Navy's development effort. It then launched a program to refine electric propulsion for submarines which helped place the private sector at the Navy's disposal for lighter, high‐speed diesels. By 1940, a better informed and equipped Navy set the standards and the private sector followed its direction.

Dolores Archaeological Program: Research Designs and Initial Survey Results. Allen E. Kane, William D. Lipe, Timothy A. Kohler, and Christine K. Robinson, compilers. U.S. Department of the Interior, Bureau of Reclamation, Engineering and Research Center, Denver, 1986. xvii + 475 pp., biblios., appendices, tables, figures, index. No price given (paper). - Dolores Archaeological Program: Anasazi Communities at Dolores: Early Small

Dolores Archaeological Program: Research Designs and Initial Survey Results. Allen E. Kane, William D. Lipe, Timothy A. Kohler, and Christine K. Robinson, compilers. U.S. Department of the Interior, Bureau of Reclamation, Engineering and Research Center, Denver, 1986. xvii + 475 pp., biblios., appendices, tables, figures, index. No price given (paper). - Dolores Archaeological Program: Anasazi Communities at Dolores: Early Small Settlements in the Dolores River Canyon and Western Sagehen Flats Area. Timothy A. Kohler, William D. Lipe, and Allen E. Kane, compilers. U.S. Department of the Interior, Bureau of Reclamation, Engineering and Research Center, Denver, 1986. xxiii + 913 pp., biblios., appendices, index, tables, figures. No price given (paper). - Volume 54 Issue 2

Public Agency Peer Review: Case Study

Because of concern in ASCE and the engineering community with quality in the field of design and construction, a task committee was appointed in 1986 and charged with developing details of a program for conducting organizational peer review within public agencies. Similar programs exist for peer review of private‐sector firms. The committee was also charged with training reviewers, conducting pilot reviews, evaluating the process, and making recommendations for further development of the program. The ASCE's Peer Review Program was introduced at the International Civil Engineering Convention and Exposition held on October 25–28, 1987, in Anaheim, California. Three public agencies that had undergone pilot peer reviews were participants in the session “Peer Review—A Key in the Quest for Quality in Engineering.” The session featured discussions on various aspects of the peer review program and included objective evaluations by these three agencies. The pilot peer review conducted at the U.S. Bureau of Reclamation's Engineering and Research (E&R) Center in Denver, Colorado, occurred in August 1987. The bureau's experience, as recounted in this paper, can provide insight into the peer review process and constructive analysis for agencies or others who may participate in future peer reviews.

Roundtable – Are Asbestos Fibers in Drinking Water Harmful?

This discussion about proposed regulations concerning levels of asbestos in drinking water took place June 23, 1986, during A WWA's annual conference in Denver. Participants were: Joseph A. Cotruvo, director of the Criteria and Standards Division of the US Environmental Protection Agency's Office of Drinking Water, Washington, D.C.; James R. Covey, associate sanitary engineer with the New York Department of Health, Albany, N. Y.; Joseph C. Jackson, president of the Asbestos‐Cement Pipe Producers Association, Arlington, Va.; Jeptha A. Wade Jr., vice‐president and chief engineer of the California Water Service Company, San Jose, Calif; and James L. Warden, head of the pipeline section of the US Bureau of Reclamation's Engineering and Research Center, Denver, Colo. Robert S. Bryant, civil engineering associate with the Los Angeles Department of Water and Power, was moderator.

DEVELOPMENT OF THE HIGH‐SPEED DIESEL ENGINE FOR UNITED STATES SUBMARZNES

ABSTRACTTo eliminate torsional vibration which severely restricted submarine operations, the Navy in 1932 initiated a design competition to develop a powerful high speed diesel engine for use with the all‐electric drive propulsion system. The original idea of Captain Harry Yarnell, USN, Chief of the Bureau of Engineering, was carried out by his successor, Captain Samuel M. Robinson, USN. Contracts were negotiated with five engine builders, one of which resulted in the General Motors (GM)‐Winston Engine. Two other manufactures, Fairbanks Morse and Hooven‐Owens‐Rentschler (HOR), developed models on their own. Success was due largely to parallel development of railroad engines. After many early problems, the GM and Fairbanks engines were improved to become standard submarine equipment for many years. Casualties with the HOR ultimately led to its removal from all submarines.