METHODS FOR DETERMINATION OF MECHANIZED COMBINE SYSTEM PERFORMANCE TAKING INTO ACCOUNT CONVENTIONAL UNITS OF WORK

Declining costs for high-performance batteries are leading to a global increased use of storage systems in residential buildings. Especially in conjunction with reduced photovoltaic (PV) feed-in tariffs, a large market has been developed for PV battery systems to increase self-sufficiency. They differ in the type of coupling between PV and battery, the nominal capacities of their components, and their degree of integration. High system performance is particularly important to achieve profitability for the operator. This paper presents and evaluates methods for a uniform determination of PV battery system performance. Already the requirement analysis reveals that a performance comparison of PV battery systems must cover the efficiency and effectiveness during system operation. A method based on a derivation of key performance indicators (KPIs) for these two criteria through an application test is proposed. It is evaluated by comparison to other methods, such as the System Performance Index (SPI) and aggregation of conversion and storage efficiency. These methods are applied with five systems in a laboratory test bench to identify their advantages and drawbacks. Here, a particular focus is on compliance with the initially formulated requirements in terms of both test procedures and KPI derivations. Analysis revealed that the proposed method addresses these requirements well, and is beneficial in terms of result comprehensibility and KPI validity.

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PERFORMABILITY AND COST ANALYSIS OF DEGRADABLE SYSTEMS

International Journal of Reliability Quality and Safety Engineering ◽

10.1142/s0218539395000216 ◽

1995 ◽

Vol 02 (03) ◽

pp. 291-298 ◽

Cited By ~ 2

Author(s):

LARS NORDMANN ◽

HOANG PHAM

Keyword(s):

Cost Analysis ◽

System Performance ◽

Fault Tolerant ◽

Static Model ◽

Efficient Procedure ◽

Optimal System Design ◽

Fault Tolerant Systems ◽

Minimum System ◽

Special Case

Many models and methods have been proposed in the literature to evaluate the reliability of fault-tolerant systems. In this paper, we study systems with one degradation mode. We introduce a static model and present efficient algorithms for the evaluation of the system performance and cost. For the special case of a system consisting of identical units we derive an efficient procedure for the determination of an optimal system design with respect to a minimum system cost.

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Determination of the speed of air outflow from the ventilation shaft of the warm attic of a multi-storey residential building under different initial conditions

Вестник гражданских инженеров ◽

10.23968/1999-5571-2021-18-5-126-129 ◽

2021 ◽

Vol 18 (5) ◽

pp. 126-129

Author(s):

E. A. Anshukova ◽

Keyword(s):

Mathematical Modeling ◽

System Performance ◽

Natural Ventilation ◽

Initial Conditions ◽

Ventilation System ◽

Residential Building ◽

Operating Conditions ◽

Ventilation Shaft

The operating conditions of a warm attic as an element of natural ventilation of a multi-storey residential building have an impact on the efficiency of the entire ventilation system performance, as well as on the condition of the enclosing structures. The study of the distribution of microclimate parameters in its volume makes it possible to more fully assess the ongoing processes. The result of calculating the rate of air outflow from the ventilation shaft of a warm attic by mathematical modeling is provided.

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Determination of Traction Power Distribution System Impedances and Susceptances for AC Railroad Electrification Systems

Joint Rail ◽

10.1115/rtd2004-66011 ◽

2004 ◽

Author(s):

Tristan Kneschke ◽

Phonigi Mbika

Keyword(s):

Power Distribution ◽

Distribution System ◽

System Performance ◽

Electrical Characteristics ◽

Power Demand ◽

Key Factors ◽

Power Distribution System ◽

Mutual Impedance ◽

Traction Power

Electrical characteristics of the traction electrification system, together with the train power demand, headway, and operating scenario, are the key factors in determining the overall system performance. A mathematical procedure for calculation of traction power distribution system line impedances and capacitances is developed using the Alternative Transient Program (ATP). The technique is applied to Direct Feed and Autotransformer Feed traction electrification systems and typical results for one-, two-, three-, and four-track railroads are presented. All self-and mutual impedance and capacitance components are included in the calculations.

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Automatic system for the determination of boron in ceramic frits

Journal of Automatic Chemistry ◽

10.1155/s1463924691000202 ◽

1991 ◽

Vol 13 (3) ◽

pp. 107-110

Author(s):

F. Más ◽

J. M. Estela ◽

V. Cerdà ◽

E. Ochandio

Keyword(s):

Data Acquisition ◽

Personal Computer ◽

System Performance ◽

Automatic System ◽

Potentiometric Determination ◽

Human Intervention ◽

Control Data ◽

Data Acquisition And Processing ◽

Instrumental Control

An automatic system for the potentiometric determination of boron in ceramic frits was developed. The system includes a personal computer for instrumental control, data acquisition and processing, which allows up to 13 samples to be analysed sequentially with no human intervention.The system performance was tested on the titration of standard solutions, which it carried out with low errors and RSD. It was subsequently applied to the determination of the B203content in various types of ceramic frits with good results.

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Assessing Operator Task Loading: A Function Analytic Approach

Proceedings of the Human Factors Society Annual Meeting ◽

10.1177/154193127602001201 ◽

1976 ◽

Vol 20 (12) ◽

pp. 243-244

Author(s):

Wade R. Helm

Keyword(s):

Human Factors ◽

Software Design ◽

System Performance ◽

Analytic Approach ◽

Human Engineering ◽

Engineering Analysis ◽

Mission Success ◽

Design Changes ◽

System Effectiveness

A human factors evaluation of the P-3C aircraft was conducted to determine the workload implications resulting from design modifications at the sensor and tactical operator stations. The primary objectives of the evaluation were: (a) to determine if equipment and software design changes had significantly influenced the workload of the operators and (b) to determine if the design changes resulted in improved system performance. To aid in conducting this analysis a method known as the Function Description Inventory (FDI) was used. This method requires a series of investigations analyzing the selected operational functions of specific P-3C crew members, with an essential part involving the determination of roles, duties, and tasks performed by the crew members. Next, crew members' judgments were compiled on how important these roles, duties, and tasks were for mission success, how frequently they were performed on a typical mission, how difficult were the activities for the typical operator, and finally, how effective were the systems in accomplishing these operational functions. After combining the FDI results with the results of traditional human engineering analysis, it was concluded that there were substantial workload and system effectiveness changes at all three stations.

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Pemantauan Energi Listrik pada Satu kWH-meter Fase Tunggal untuk Empat Kelompok Beban Berbasis Metode Payload Data Handling

Jurnal Rekayasa Elektrika ◽

10.17529/jre.v14i3.11952 ◽

2018 ◽

Vol 14 (3) ◽

Author(s):

Suhendri Suhendri ◽

Arief Goeritno

Keyword(s):

System Performance ◽

Single Phase ◽

Electric Energy ◽

Integrated System ◽

Data Handling ◽

Group A ◽

Verification Test ◽

Validation Tests ◽

Minimum System

A minimum system has been made for monitoring the electric energy in a single phase kWh-meter for four load groups based on the Data Handling Payload (PDH) method. The purpose of this study, namely to obtain an integrated system based on Arduino MEGA2560 R3 microcontroller and measurement of the system performance. Method of obtaining the system is carried out through (i) making boards for sensor modules and relays; (ii) making boards for module of the driving the system; (iii) wiring integration of a number of boards and modules; and (iv) programming against the microcontroller system assisted by the Arduino IDE based on the PDH method. Method of measuring the system performance is carried out through verification and validation tests. Sensors and relays module consist of a voltage sensor, four current sensors, four relays, and a supporting electronic circuit. The integration module of a number of pins is functioned as an integration of all pins associated with pins on the microcontroller system with regard to input and output. Programming the microcontroller system is based on the determination of algorithms and the preparation of syntax. The verification test assisted by the Proteus application is carried out in the form of simulation of the provision of artificial conditions in the form of the value of voltage, current, and the amount of time for the acquisition of energy values. Simulations are carried out on each path of the load group. A verification test is the determination of the linearity of current and voltage values. Based on the validation test, it is obtained the kWh values and the amount of electric energy costs (in rupiah) that are monitored at any time and can be printed every time or monthly.

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Evaluating The Performance of Inventory Management The Production Division of PT. Tiga Serangkai Surakarta as a Case Study

Shirkah Journal of Economics and Business ◽

10.22515/shirkah.v1i1.7 ◽

2016 ◽

Vol 1 (1) ◽

pp. 93

Author(s):

Sri Maryati

Keyword(s):

Inventory Management ◽

System Performance ◽

Service Level ◽

Inventory System ◽

Order Quantity ◽

Safety Stock ◽

Production Employee ◽

The Cost

This research aims to understand the process of production and to analyze the performance of inventory system on production division of PT. Tiga Serangkai. The data has been gathered from direct observation of the process production and warehouse and the interview with the production employee, the employee of warehouse division, supervisor of purchasing and finance manager. This research demonstrates that inventory system performance of PT. Tiga Serangkai Surakarta can be optimized through the determination of inventory policy, applying a model minimum and maximum inventory that considers the safety stock in accordance with service level plan, implementing model Reorder Point (ROP) which can be used as guidelines in charging supply back, and applying the model economic ordering quantity. In doing so, they can save the cost of inventory. Keywords: inventory management, economic order quantity (EOQ), PT. Tiga Serangkai

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ANALISIS TATA LETAK RECLOSER MENGGUNAKAN METODE PENELETIAN STATISTIKA BEBAN DAN POPULASI GUNA MEMAKSIMALKAN KINERJA SISTEM

Jurnal Teknika ◽

10.30736/teknika.v9i2.56 ◽

2017 ◽

Vol 9 (2) ◽

pp. 6

Author(s):

Farda Akhyal Adiba ◽

Zainal Abidin ◽

Suharijanto Suharijanto

Keyword(s):

System Performance ◽

Electricity Distribution ◽

Safe Distance ◽

Disturbance Index ◽

Know How ◽

Frequency Index ◽

Minimum Disturbance ◽

Rate Of Failure ◽

Number Of Customers

Disturbance at PT. PLN (Persero) Rayon Sidayu Area Gresik Distribution East Java is quite diverse, most of the disturbance that occurred was temporary temporary, the cause is not known and to minimize the disturbance is widely used automatic cover (recloser) on the electricity distribution network. The placement of the recloser is only based on a safe distance without consideration of the load and the customer population and calculation of the layou t for the determination of the location that can maximize the system performance. By knowing the burden and the customer population it will be able to know how many losses and the number of customers who will experience a disruption when the recloser has failed function due to improper layout, load and customer population can also be a variable to calculate SAIFI value. One parameter of failure (the extent of failure or blackout to the customer) in the electrical world is the value of SAIFI (System Average Interruption Frequency Index). Higher values indicate an increasing rate of failure. In this analysis there are 3 points that counted SAIFInya value that is point 19 with SAIFI value 15.1, point 18 with SAIFI value 61,7 and point 12 with value SAIFI 137,2. from the calculation of each point can get the result of SAIFI minimum disturbance index that is at point 19.

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DISPERSANT MISSION PLANNER, DMP2

International Oil Spill Conference Proceedings ◽

10.7901/2169-3358-2008-1-791 ◽

2008 ◽

Vol 2008 (1) ◽

pp. 791-796

Author(s):

Dean H. Dale ◽

Alan A. Allen

Keyword(s):

System Performance ◽

Oil Spills ◽

Coast Guard ◽

Application System ◽

User Friendly ◽

System Operating ◽

Daily Application

ABSTRACT The most recent release of the National Oceanic and Atmospheric Administration (NOAA) Dispersant Mission Planner, DMP2, is a valuable tool for the estimation of system performance involving the application of chemical dispersants on oil spills. The assessment of system performance is critical for both planning and realtime operational use. The DMP2 can be used for the assessment of fixed-wing aircraft, helicopters and vessels as platforms for the application of dispersants, allowing the user to compare and optimize the performance of each system. The Mission Planner can also be used to calculate the Effective Daily Application Capacity (EDAC) for a specified application system operating from a pre-designated staging location. The DMP2 provides a user-friendly tool for the determination of any dispersant application system'S EDAC as currently required by U.S. Coast Guard regulations for a given Captain of the Port (COTP) Zone. The authors (and developers of the DMP2) describe the underlying logic of the model and illustrate its use with a number of examples.

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