RANCANG BANGUN KOMPONEN UTAMA PLTS OFF-GRID UNTUK MENUNJANG OPERASI INCINERATOR SIPESAT®

To increase reliability of SIPESAT® Incinerator, off-grid solar powerplant was installed. The aim of this paper is to designing the requirement of the main equipment for the solar powerplant. 270 w, 3 autonomies days were used as the main parameter. GHI gathered from NASA’s data, VRLA battery type with MPPT inverter type was chosen to design the solar powerplant system. based on calculation results, the solar powerplant system need two solar panels 150watt each, and two VRLA battery 24V 200 Ah each,

Evaluation of the Comparative Efficiency of CCGT in Variable Modes

The purpose of the research is to select the priorities for the development of various types of power plants and to substantiate the structure of generating capacities. An improved method has been developed for the selection of priorities for the development of various types of power plants, taking into account the service life and economic performance of the main equipment of power plants in variable modes based on equivalent operating hours. The influence of variable modes of combined-cycle gas installations on the service life of the main equipment (steam and gas turbines) is studied. The comparative efficiency of CCGT-450 in variable modes is calculated, taking into account the wear of the main equipment. As a result of calculations, it was found that with the minimum forecast prices for natural gas, the most efficient power plant (among those considered) is combined cycle power plant, which provides the lowest prime cost of electricity when operating in the base mode and the least increase in the prime cost of electricity when operating in an alternating mode.

Methodology of online assessment of technical state of transformer substation 35/6 (10) kV by express analysis coefficient

THE PURPOSE. The purpose of this study is to develop a methodology for determining the coefficient of express analysis of the main equipment of a 35/6 (10) kV transformer substation (TS) to assess its technical condition. A three-level structural complex has been developed for measuring and express-analysis of the technical state of TP. The technical condition of the main equipment of the TP is analyzed according to the selected diagnostic parameters.METHODS. The TP monitoring system makes it possible to assess the performance of its elements online. Express analysis provides remote monitoring, monitoring of the condition of the operating equipment and forecasting changes in the technical condition.RESULTS. The proposed method for determining the coefficient of express analysis allows online monitoring of changes in monitored parameters, reducing the recovery time of failed elements, and maintaining equipment in a working condition. CONCLUSION. The proposed solutions make it possible to move to the organization of maintenance and repair of the main power and electrical equipment of the transformer substation according to the actual state, as well as to improve the reliability and quality of the transmission of electrical energy to consumers.

Classification of production factors of foundry production

The classification of production factors of working conditions at the workplaces of the main equipment used in the foundry is given. This classification is developed on the basis of the results of the conducted research and based on the materials given in the domestic and foreign literature.This allows us to evaluate the technological processes and equipment used in the design and reconstruction of foundries (sections) to ensure the most favorable working conditions.

Pengabdian Kepada Masyarakat Uji Kompetensi Siswa-siswi Bidang Keahlian Teknik Kendaraan Ringan di SMK Rigomasi Bontang

The Expertise Competency Test (UKK) aims to measure the achievement of student competence at a certain level according to the competence of skills taken during the learning period in SMK. UKK is implemented by education units in the form of practical exams that test aspects of knowledge, skills, and attitudes. UKK is implemented using standards set by industry, Professional Certification Institutions, and/or test kits issued by the Ministry of Education and Culture. The education unit that organizes UKK must be declared eligible as a place for professional competence testing. As in the previous year, UKK scores will be calculated as school exam scores for vocational competency subjects. The UKK toolkit issued by the Ministry of Education and Culture is open and test takers can practice using the exam tool before the exam. In general, the Expertise Competency Test consists of: (1) Vocational Practice Questions (SPK) in the form of assignments for test participants to create or process and work on a product/service; (2) Practice Question Assessment Guidelines (PPSP) are instruments used to score each assessment component, competency achievement, and assessment criteria/rubric, assessment sub-component, competency achievement, and assessment criteria/rubric; and (3) the Verification Instrument for the Operator of the Vocational Practice Exam (InV) is an instrument used to assess the feasibility of an educational unit or other institution as a place to administer the Vocational Practice exam. Verification Instrument contains standard requirements for main equipment, standard supporting requirements, standard requirements for place or room and contains standard requirements for testers consisting of External examiners

Safety Method for the Pre-conceptual Phase of Sodium-cooled Fast Reactors

The ESFR-SMART European project (Contract number: 754501) focuses on the development of innovative safety design options for future Sodium-cooled Fast Reactors (SFRs). The goal of this paper is to show how the Objective Provision Tree (OPT) method, which is part of the Integrated Safety Analysis Methodology (ISAM) developed by Generation IV Forum (GIF), can help in defining safety guidelines for the definition and the study of ESFR-SMART innovative design options. The OPT method provides a view of the implementation of main safety functions in accordance with defence-in-depth principle and has been adapted to ESFR-SMART needs. Guidance for a consistent and homogeneous application has been developed. The method is applied to each safety function with a specific adaptation for the confinement function. Beyond the allocation of the main equipment ensuring the safety functions to the different levels of defence-in-depth, the adapted method proposes a systematic identification of the mechanisms likely to degrade them. Then, safety features to cope with these mechanisms are investigated as well as the potential common cause failures of main equipment belonging to different levels of defence-in-depth. This adapted method allows to study and then to improve the independence between the levels of defence-in-depth as required for future reactors in Europe by Western European Nuclear Regulators' Association (WENRA). The paper provides the outline of guidance for OPT method adaptation to ESFR-SMART project needs, examples of application and main outcomes of the use of the method.

Analysis of emergency situations on low pressure gas pipelines in case of failure of gas control points

The analysis of malfunctions of the main equipment at gas control points was carried out. It was concluded that for the looped-back part of the low-pressure network, the diameters of adjacent sections should not be significantly different, since if the diameter of one section is less than the neighboring one, then in an emergency mode, a section with a small diameter will not let in the required amount of gas.