Building a Circular Economy Model for Managing Exploitation of Household Used Devices on the Example of Washing Machine Driven by DC Motor Along with Components

In the article, the authors describe, using the example of a selected class of technical means, their concept of replacing the “classical” linear management (exploitation) model with a circular economy (CE) model. An example of an object for which the authors plan to test the feasibility of the concept presented above is a household washing machine driven by a DC motor. The description of this object included in the article considers its complexity and multiplicity of assemblies, sub-assemblies, and elements. The DC electric motor driving the washing machine was considered the most important from the point of view of the created model, especially in terms of the possibility of maintenance and repair. For such an engine, the article presents the maintenance and disposal model as elements of the concept of building a ‘circular’ business model. The authors assumed that the formal basis for such a model would be the so-called circular model. The methodology and plan of the research carried out at Super Asia washing machine company in Pakistan were introduced, and the research results were shown. With the use of these results, an attempt was made to assess the requirements that the application of the CE business model places on manufacturers of a selected class of devices, both in their manufacture, repair, sharing and dematerialization. The concept of further research is described at the end of the article.

THRUST ANALYSIS ON 250 WATTS DC ELECTRIC MOTOR FOR LOCOMOTION BOAT

To make it easier for farmers in terms of maintenance and transportation of community-owned coconut and palm oil crops, the team tried to make a design for testing the thrust of a 250 Watt DC motor powered by solar heat for boat propulsion, by testing the boat propeller with variations in the diameter of the propeller 17.5 mm, 15 mm, 15.5 mm, 14.8 mm, and 14.5 mm, as well as testing with variations in driving rotation and variations in driving rotation with the number of gear teeth 11, 16, 20, and 22. From the calculation of the torque obtained is 1,090 Nmm so that the diameter is obtained propeller is 5 mm. Thrust force test results obtained vary depending on the diameter and variations of the rotation of the propeller drive so that an adequate diameter is obtained by using a diameter of 14.8 mm with a current of 9.2 A with a thrust of 7.5 kgf. Meanwhile, for an adequate variety of the driving speed, the number of teeth is 20 and the thrust is 7.5 kgf and the current is 10. This value meets the requirements because the current strength does not exceed 10 A. From the test results, it can be concluded that the design and analysis are very fulfilling needs.

Integrating Step Motor Movement Half-Step and Full-Step by Labview

This paper represents the performance of placement control of step motor (Brushless DC electric motor) using LabVIEW. Step motors are Applicable in many industries and factories where accurate control of motor position is necessary. In this work, half step and full step manner of step motor control is implemented. The experiment outcome show that half step manner makes an angle of 0.6 degree per step (300 steps), considering full step makes 1.2 degree per step (150 steps). With LabVIEW the arrangement has friendly communication, better control result and uncomplicated control in both ways.

Research of Tractor Power Unit with Electric Drive Parameters

The author showed that it was possible to reduce the exhaust gases toxicity and increase tractors effi ciency using an electric power unit to implement traction. The effi ciency of modern electric motors was at its peak of 96 percent, compared to 45 for a diesel engine. He emphasized that this parameter for modern sources of electrical energy was 85-90 percent, which opened up opportunities for the implementation of an electric tractor.(Research purpose) To present the general concept of an electric drive power unit for a tractor of a small traction class and to evaluate its parameters as a fi rst approximation.(Materials and methods) For the tractor’s electric drive lithium-ion batteries were chosen as a source of electrical energy, showing the best characteristics of energy intensity – 432-864 kilojoule per kilogram with a unit cost of 4200-17400 rubles per kilogram. During the analyses of the power unit drive types, a D-120 diesel engine with a power of 20 kilowatt, a DC electric motor and an asynchronous motor with similar parameters were studied. The VTZ-2032 tractor with a nominal tractive eff ort of 600 Newtons when working on stubble was taken as the basis for the calculation.(Results and discussion) The author determined the best indicators of the electric drive by the power characteristics fullness in the gears with a decrease in unit costs per kWh from 24 to 15-16 rubles.(Conclusions) The most effi cient engine was determined – a brushless DC electric motor. The author calculated that the specifi c cost of its energy was 1.5-1.8 times less than that of a diesel engine, and amounted to 15-27 rubles per kilowatt-hour with a maximum effi ciency of 95 percent. It was found that lithium-ion batteries would be the optimal solution for powering the electric drive. They were distinguished by a high specifi c energy consumption – 432-864 kilojoule per kilogram – and a low price per energy unit, amounting to 5-45 rubles per kilojoule.

Performance Improvements on Hybrid Two Wheeler

In order to maintain a sustainable development and pollution free environment, hybrid vehicles are being made, which have the advantages of both I.C. engines and electric motors. Till date, hybrid technology implemented in a two wheeler has not hit the market yet due to cost issues and nonavailability of resources. We have made an attempt to implement hybrid technology in two wheelers. We have modified a conventional motorcycle using double sprocket, flywheel, brushless DC electric motor and an alternator.We have installed all the components, tested and found it to be successful as it satisfies our objectives by showing enhanced performance.

Wheel Slip Detection for Electric Drive in Planetary Exploration Vehicles

This article illustrates a technique for tracking longitudinal wheel slips in real time using an embedded microcontroller to map current consumption against real-time current consumed by the engine. This system can be used and operated separately of each other on more than one wheel. To detect wheel slippage, a predefined slip curve mapped to a specific DC electric motor is mapped against the current consumed by the same operational motors. This paper also recommends a convenient control algorithm to calculate its slippage of the wheel in real time. This approach is implemented using distinct load and terrain on a planetary exploration robot.

Build Design Of Electric Bike As Energy Efficient Transportation

The issue of global warming is very strong in the force in the procession, the damage caused by global warming is very influential in the survival of living beings. The methods performed in this study are experimental methods. The experiments performed were to make a design and to become a unity so that it formed a tool of electric bicycle transportation that can be used well. This thesis author devise and assemble electric bicycle using DC electric motor 24 Volt 250 Watt and 3000 rpm. The power system used is 24 Volt 12 Ampere battery. From the results of the test and analysis of data that has been taken on the electric bicycle obtained data of the average speed obtained by the electric bike with a load of 78 = 4.94 m/s, load 83 = 4.59 m/s, load 88 = 4.25 m/s, power output to drive electric bicycle with load 78 = 266.679 Watt, load 83 = 263.810 Watt, load 88 = 258.984 Watt. Isu pemanasan global sangat kuat di gencar disuarakan, kerusakan yang disebabkan pemanasan global sangat berpengaruh pada kelangsungan hidup makluk hidup. Metode yang dilakukan dalam penelitian ini adalah metode eksperimen. Eksperimen yang dilakukan adalah membuat sebuah rancangan dan merakitnya menjadi suatu kesatuan sehingga terbentuk sebuah alat transportasi sepeda listrikyang dapat digunakan dengan baik. Skripsi ini penulis merancang dan merakit sepeda listrik dengan menggunakan motor listrik DC 24 Volt 250 Watt dan 3000 rpm. Sistem daya yang digunakan adalah baterai 24 Volt 12 Ampere. Dari hasil pengujian dan analisis data yang telah diambil pada sepeda listrik didapatkan data berupa kecepatan rata-rata yang didapatkan sepeda listrik dengan beban 78 = 4,94 m/s, beban 83 = 4,59 m/s, beban 88 = 4,25 m/s, daya output untuk menggerakkan sepeda listrik dengan beban 78 = 266,679 Watt, beban 83 = 263,810 Watt, beban 88 = 258,984 Watt.