Compressor Machine Research Articles

Using a frequency vibration approach, examine the impact of screw rotor clearance on the screw housing in an 11kW compressor

A screw compressor is one of the industrial machines needed for productivity and use in today's production. Industrial machines generally use pneumatic systems with the help of compressed air supplied by a compressor machine. The compressor working system must receive very special attention. Maintenance and prevention of damage to air screw compressor machines is very necessary, especially maintenance and prevention of damage to rotary screw air compressors. Problems that often occur with the shaft will result in reduced air supply flow or unstable air pressure resulting in disruption of the production line. The aim of this research was to discuss the vibration values produced against the rotor clearance from the ideal output on male and female screw compressor rotors using the frequency analysis method, taking the vibration values at the screw compressor housing point using an Accelerometer sensor and a Fast Fourier Transform (FFT) tool. The analyzer rotates at 1500 rpm in the X, Y and Z axes at each predetermined point. Research shows that the clearance is set at 0.03, 0.05 and 0.08. In this research, the high frequency sample values of 1x 25 Hz, 2x 50 Hz, and 3x 75 Hz often appear in each vibration data of 0.03 and 0.05, at the vibration frequency range value of 0.08 none appear. This shows the results that the ideal rotor clearance value is at a distance of 0.08 because there is no frequency graph of 1x, 2x, and 3x rpm at each point and axis on the end housing of the screw rotor compressor

Perencanaan Proyek Pemasangan Jalur Pipa Angin dan Kompresor pada beberapa Mesin Produksi di PT X

A contractor is a party hired to complete a job. CV. Andhika Kencana is a contractor who has received wind pipe installation projects ranging from compressor machines to production machines. PT Compressor pipe installation is used to run automotion machines in the production area. Pressurized air is produced from the compressor which will later be connected to pipes until it reaches the automotion machines. The problem here is how to schedule pipe installation so that it is on time and in accordance with the budget that has been determined at the beginning. The methods used in this research are the Critical Path Method (CPM) and Program Evaluation and Review Technique (PERT). The results obtained are that the critical path in this project is activities A, B, D, F, H, I, K, M, N, O, and the probability that the wind pipe installation project can be completed in 60 days is 27.09%.

Analysis of the frictional processes in piston machines

The durable and reliable work of piston compressors and pumps used in the oil and gas industry has great importance for practice. Investigation of complex problems with respect to mechanical and thermodynamic phenomena in compressors and pumps gives the opportunity to solve the problems of increasing the durability of oil and gas exploitation and transportation. Increasing the efficiency and durability of the compressor-pump stations directly depends on the correct calculations and designing of the different elements and mechanical parameters of piston machines. The problem of determining the forces affecting the crank-piston mechanisms of the piston compressors arises during the study of the friction process in the working parts, as well as the study of the oscillating movement of the moving crankshaft of this compressor. The indicated forces periodically depend on the angle, time, and rotation of the crankshaft of this compressor, as a result of which they create forces at various nodes of the piston mechanism and the shaft of the compressor machine. These specified conditions can create dangerous stresses that can cause the compressor connecting rod and crankshaft to break. In this work, in terms of its special characteristics, the forces affecting the piston compressor's lever-slider mechanism are determined by taking into account the main factors accompanying the working process. The results of the investigation can be useful for the design and exploitation of compressor stations used in the oil and gas industry.

Analisis pengelolaan limbah oli bekas pada pelaku usaha bengkel mobil di kelurahan Cipamokolan kota Bandung

This study aims to analyze the management of hazardous and toxic waste (B3), specifically used oil waste, generated by small automobile workshops in Cipamokolan Village. The disposal of used oil into the environment can have negative impacts, such as soil infertility, plant death, and health issues for the surrounding community. This research employs a qualitative method with data collection through observation, interviews, and questionnaire distribution. The data analysis technique utilizes a triangulation approach, which includes data collection, data analysis, verification, and conclusion drawing. Data verification is conducted through confirmation from research subjects, data analysis, and validation by expert faculty members. The research is carried out by observing two randomly selected small automobile workshops in Cipamokolan Village. The findings indicate that a portion of the used oil waste is handed over to oil collection services, while the remaining portion is used as a lubricant for compressor machines. Therefore, there is a need for educational efforts to enhance the understanding of automobile workshop operators regarding the management of used oil waste. It is expected that these efforts will improve the awareness of automobile workshop operators in relation to the handling of used oil waste, thereby reducing the negative impact of environmental pollution.

Mechanical Strength, Characterization and Suitability of Cement-Plastic Concrete Admixture

A significant increment in the consumption of plastic has been monitored globally in recent years, which has led to a high amount of plastic waste. Given its benefits on both an economic and ecological level, recycling plastic waste to create new materials like concrete is considered to be one of the finest ways to get rid of plastic waste. The objective of this paper was to examine the workability, durability, and mechanical strength of concrete with partial replacement of coarse aggregates with plastic waste using standard procedure. The percentages of plastic waste used to replace coarse aggregate were 0%, 5%, 10%, and 15%. Lastly, the mechanical characteristics of the concrete mix specimens was determined by testing them using a testometric and compressor machine. The specimens are then compared with the conventional mix. The test results demonstrated that the compressive strength exhibited a decreasing trend. For mixes ranging from 0% to 15%, the compressive strength varies from 35.66 to 17.88 N/mm2, however the flexural strength significantly decreases when 15% of the coarse aggregate is replaced with plastic waste. It can be concluded that reusing plastic waste as an aggregate during the concrete-making process reduces waste and conserves resources.

Optimal operating conditions for an electric ECS in ground parking status

The Electric Environmental Control System (EECS), which uses an electric compressor to draw in outside air instead of the engine bleed, is under consideration. In this study, the case of EECS operating in a grounded parking status is discussed. The pressure ratios for the electric compressor and the air cycle machine compressor are set as variable parameters. A thermodynamic analysis is performed to clarify the operating conditions of the system, taking dehumidification into account. The coefficient of performance is obtained, and it is found that the maximum value is obtained under the condition where the pressure ratio of the electric compressor is the smallest.

PENJADWALAN PERAWATAN NITROGEN AIR COMPRESSOR MENGGUNAKAN METODE RELIABILITY AVAILABILITY DAN MAINTAINABILITY (RAM)

This research aims to increase the reliability and availability of the Nitrogen Air Compressor machine and determine the maintenance schedule for the Nitrogen Air Compressor machine. The method used in this research is the Reliability Availability and Maintainability (RAM) method to determine the level of Reliability Availability and Maintainability on Nitrogen Air Compressor machines to determine more optimal maintenance scheduling. The results of this research showed 4 defects in the Nitrogen Air Compressor units C and D components, namely (1) Filter Dryer (M 580-1) (C) produced a system reliability value of 82.47%, a system maintainability value of 83.00%, and Availability that has been carried out can produce an inherent availability value of 99.67% and an operational availability value of 99.92%. (2) Air Inlet Filter (6.4198.1) (C) produces a system reliability value of 81.31%, a system maintainability value of 83.87%, and Availability that has been carried out can produce an inherent availability value of 99.92% and operational availability value is 99.92%. (3) Oil Filter (6.3464.1) (D) and produces a system reliability value of 81.34%, system maintainability value of 85.49%, and the Availability that has been carried out can produce an inherent availability value of 99.93% and operational availability value is 99.93%. (4) Filter Dryer (M 580-1) (D) produces a system reliability value of 80.%, system maintainability value of 85.49%, and Availability that has been carried out can produce an inherent availability value of 99.93% and an operational availability of 99.93%. From these results it can be concluded that the RAM method can determine more optimal machine maintenance scheduling. Suggestions for companies are that they can implement scheduling using the RAM method.

Analisa kerusakan bearing mesin kompresor sekrup boge tipe bs 102 nr 1023728

A compressor is a machine for compressing air or gas. Air compressors usually suck airfrom the atmosphere. However, there are also those who suck in air or gas at a pressurehigher than atmospheric pressure. In this case the compressor works as a booster. On theother hand, there are also compressors that suck in gas at a lower pressure than atmosphericpressure. One of the problems with screw type compressor machines is overload, where thepower required by the compressor is less than the normal requirement, which forces themachine to work more than its capacity limits. In the end, this results in the electric motorgetting hotter (overheating) and can even cause a fire in the magnetic winding. The aim ofthis research is to analyze the causes of bearing damage to the Boge type BS 102 screwcompressor machine outside the maintenance schedule which disrupts the productionprocess. This research used field observation methods, reviewing machine manuals andliterature studies. The results of the research show that the cause of damage to bearings inbogie screw compressor machines is due to an incorrect lubrication system and installationand repair of bearings that do not comply with procedures

Work Facility Improvement of a Motorcycle Wash Station in Deli Tua District, Deli Serdang Regency

Aqila Wash Station is a micro business that washes motorcycles, mats and carpet in Deli Tua, a sub-district in North Sumatra province. Washing motorcycle may consume a large amount of time and this decreases customers’ satisfaction. The whole process is performed manually using very simple tools and this tires the workers quickly, which results in a decrease in their work quality. The most common problem that workers face is soap depletion. The next problem is compressor machine becomes hard to initiate, which makes the washing duration longer and may even cause customers to go to another motorcycle wash station. This service activity helps the wash station by providing a compressor machine and a set of hydraulic tools to raise and lower the motorcycle. The floor, where the motorbike is washed, is leveled, and then a steam machine and soap are provided. This service activity also includes giving assistance to the workers, rotating the material given, providing internships chance to students, and teaching few concepts of science and technology. It is expected that workers effectiveness will improve the work quality of Aqila Wash Station.

Designing The Estimation of The Need for Spare Parts and Inventory Policy on The D32 CP8 Compressor Machine

Based on damage data owned by PT XYZ, the compressor engine that has a history of high damage is the D32 CP8 Compressor Engine. Critical components of the D32 CP 8 Compressor are determined using a risk matrix. The critical components selected from the D32 CP8 Compressor Engine are Screw Motor, Refrigerant Air Cooler, and Cylinder Bearing Oil Cooler. This study uses the Reliability Centered Spares (RCS), Min-Max Stock, and Reorder Point (ROP) methods. The data collection and processing results obtained the need for critical components in the next 1 year based on the MTTF critical component data. These calculations show that the value of the required spare parts for the Motor Screw, Refrigerant Air Conditioner, and Cylinder Bearing Oil Cooler in a year is 8 components. The minimum Stock of the Screw Motor is 3 components, the maximum stock is 8 components, ReOrder Point point is 4 components. The minimum stock of 4 component air coolers, maximum stock of 7 components, ReOrder Point when 3 components. The minimum stock of a Cylindrical Bearing Oil Cooler is 2 components, the maximum stock is 6 components, and the ReOrder Point is when there are 2 components.

Prioritization of Effective Lean Tools for Reliability Analysis & Maintenance Strategy

Asset or equipment reliability and availability have occupied extensive attention because of an emerging competitive environment and the overall operating and production cost. The main focus of this manuscript is to prioritize the lean tool and select an appropriate maintenance strategy for the repairable assets in the maintenance shop of the SIMGA1 shipyard. Five (5) assets of that maintenance shop such as an air compressor machine, 500-ton press machine, overhead crane machine, VDF lathe machine, and Roller machine were under breakdown maintenance. Due to the continuous degradation of those assets, attempts should be taken to enhance the reliability parameters by predicting upcoming failure events for each equipment or asset. QFD-AHP is a rapid tool in which quality function deployment is integrated with AHP to make an optimal selection. Firstly, the integrated QFD-AHP method is employed to prioritize the lean tools for that maintenance shop. 5S and KPI are the best fit for that shop among ten lean tools. Non Homogenous Poisson Process (NHPP) is a model which represents the no. of failure experienced up to time (t). NHPP and Weibull analysis are utilized to predict future failure events and analyzed the nature of the failure accordingly. From the results of the Weibull analysis and NHPP analysis, it is shown that the slope (β) of the failure rate is greater than 1 for all assets. Overhead crane m/c and 500-ton press m/c are the most critical m/c according to equipment criticality analysis. Finally, a decision diagram is utilized to extract the most congruent maintenance strategies based on the reliability parameter of five (5) assets. The approach employed in this study helps maintenance practitioners to achieve lean maintenance.

Penerapan Metode Profile Matching Dalam Sistem Pendukung Keputusan Pemilihan Teknisi Terbaik

PT. Mitra Tunggal Perkasa is a distributor company engaged in the marketing of goods sales, the goods sold or marketed are heavy equipment types such as the Shark Komprssor machine. Maintenance on the compressor machine is usually carried out by a technician, in which case PT. Mitra Tunggal Perkasa selects the best technicians and also rewards technicians who will be the best alternative. The selection of the best compressor technician is done to help improve the technician's work power so that it becomes even better than the previous one. To assist the determination or selection in determining someone who deserves to be the best compressor engine technician, a decision support system is needed, and there are lots of criteria that every technician must have as a condition to become the best compressor engine technician. In this study, a case will be raised, namely looking for the best alternative based on predetermined criteria by applying the Profile Matching method. This method compares the actual data value of a profile to be assessed with the expected profile value, so that the difference in competence (GAP) can be seen. selected alternative, so that it can be used by each party in supporting the progress of the organization or company in achieving its goals through making the best decisions. The result of the Decision Support System for the Selection of the Best Mechanical Technician at PT. Mitra Tunggal Perkasa is alternative A2 with a value of 4,755 in the name of "Satish Kumar".

Диаграммы производительности судовых вакуумных рыбонасосных установок

The article presents the analysis of performance diagrams of marine vacuum fish-pumping units based on Ocean Master water-ring compressor machines published in the domain by Samson Pumps. The diagrams represent the dependence of the flow rate of the water-fish mixture on the given level difference at different values of the rotor speed for two stages of the plant operation. These experimental dependences are well approximated by 3rd-order polynomials over the entire range of acceptable argument values. The calculation of the values of the adjusted determination indices showed that at a rotor speed of 20 s-1 or more the degree of the polynomial can be reduced to the second power. Contour graphs of the performance of vacuum fish pumping units at each stage of their operation were constructed. The argument values for a given feed can be determined from these graphs. They allowed to set the scope of arguments in which the unit would not work. The formula for the performance of vacuum fish pumping units for the full cycle of operation is obtained on the basis of regression models. The maximal performance of the investigated vacuum fish-pumping units indicated in the technical documentation refers to the individual stages of their operation. The performance for a full cycle of work in real conditions can be 5-10 % of the maximum. The obtained analytical expressions can be used in the practical application of performance diagrams of vacuum fish-pumping units, taking into account the hydraulic head losses in the pipeline.

Анализ перспективных направлений создания отечественной компонентной базы ротационных машин объёмного действия для малой энергетики, холодильной и климатической техники

An overview analysis of research and development in the field of volumetric rotary machines for low power energy, refrigeration and climate technology, as well as the state of the world and Russian market of compressor and expansion machines of this type is presented. It is shown that in this sector of domestic industry, the existing level and scale of production does not meet the requirements of ensuring the technological independence of the Russian Federation and the implementation of critical technologies. The analysis of the existing designs of rotary machines, as well as the nomenclature of domestic refrigeration and compressor engineering, allowed us to conclude that rotary machines of screw and spiral type are preferred for the implementation of existing licensed technologies at Russian enterprises. However, taking into account the urgency of ensuring import independence, rotary-plate compressor and expansion machines are of considerable interest. The prerequisites for improving the technical level and competitiveness of rotary-plate machines based on domestic technologies and new promising technical solutions are identified and formulated.

Design and Fabrication of Plastic Compressor Machine for Plastic Waste

This project work is on design and fabrication of a plastic compressor machine to compress plastic waste. The objective of this project is to help to reduce plastic waste mostly from domestically usage and turn into a paving brick that can be uses as decoration in a mini garden or walkway. This plastic compressor machine works using a modified old conventional oven to melt shredded plastic waste in a mould and let the melted plastic cooled and turned to a paving brick. The temperature to melt the shredded plastic waste of 450 grams is 250 degrees Celsius in 1 hour. The machine fabricated using recycled materials, which makes it cheap, easy to maintain and affordable.

Analysis of leaking ratio of sealing device for the intake port of EMC closed integral structure turbine disk through soft computing

The rotor disk produces an azimuthal velocity component in the space between the rotor and stator of a turbine disk, also known as the rim seal cavity. As part of an empirically study, the rim seal cavity is subjected to a test aimed to count the number of unstable structures and evaluate their rotational speed. An Electronic Control Unit (ECU) has a leak test aperture that is sealed by a sealing device that is selectively disposed in the leak test aperture. Designing pump and compressor machines and units requires the development of dependable seal assemblies that maintain tightness over a long period of time and in a wide variety of pressures and temperature. In the field of electrochemical machining (ECM), heat-resistant and high-strength materials may be machined into complicated forms using this well-known technology. ECM presents some issues as the electrochemical copying of grooves, insulating groove features, slots and mini-holes can cause water leakage due to the poor sealing device of the closed integral structure turbine disk. Sealing devices of rotor turbine disks are heavy components with low-cycle fatigue analysis to their life curves. However, there is rare analysis to detect their defects in various rotor regions (temperature, considering stress, mission profile). This study by use of hydro-thermal loading has attempted to focus on the mechanical seals rings and basic productive and operating requirements. Taking the damage and wear, the clearance has been altered that cause a raising in leakage. Generally, the leakage grows more rapidly than linearly with the after-damage clearance. Also, damage and wear were related to the labyrinth seal itself, resulting that the bending curvature and the percentage of bent tooth length were also relevant in defining the leakage in the case of bending damage.

秸秆-牛粪混合物料保水成型装置设计与参数优化

A hydraulic horizontal water-retaining moulding device for mixed materials was designed and optimized. The effect of compression process parameters of the mixture of straw and cow dung on the effect of water retention moulding was analysed through experiment. The suitable value range and critical value of process parameters were obtained. The main power and structural parameters of the hydraulic system in the mixture compression unit were designed and calculated. Appropriate hydraulic and control components were selected. A test prototype of the hydraulic horizontal mixed material compressor machine was manufactured. Through the method of combination experiment and response surface optimization, the optimal combination of working parameters of the hydraulic horizontal water-retaining moulding device was obtained and verified. The dimensional stability of small-scale compost blocks made by the compressor could reach 84.71% under the condition of 250 mm/min for the compression speed, 55 kg for the feed amount and 200 s for the holding time.

Digitalisasi Ukm Dalam Hadapi Era Less Contact Economy Pada Masa Covid-19

The craft of marine wood waste has been practiced for almost 10 years by the UKM Fortuna Handycraf whose products have been exported to various countries in Europe and America. However, during a pandemic, SMEs find it difficult to increase productivity due to various constraints such as constraints on production technology, marketing and managerial capacity. The Indonesia Bangkit UKM Program provides solutions to overcome these problems, namely solutions to technological capacity constraints by procuring production machines such as cutting machines, sitting drilling machines, compressor machines, work tables and wheelbarrows. Solution to marketing / distribution and managerial constraints by designing and manufacturing an Android-based Management Information System (SIMBA) (inventory management based on online purchase orders), and assist in the preparation of the company's income statement. Besides that, it also offers marketing media using neon box boards. The solutions provided can help increase the productivity of the Fortuna Handycraft SME in terms of production, digital marketing and managerial

Digitalisasi Ukm Dalam Hadapi Era Less Contact Economy Pada Masa Covid-19


 
 
 
 The craft of marine wood waste has been practiced for almost 10 years by the UKM Fortuna Handycraf whose products have been exported to various countries in Europe and America. However, during a pandemic, SMEs find it difficult to increase productivity due to various constraints such as constraints on production technology, marketing and managerial capacity. The Indonesia Bangkit UKM Program provides solutions to overcome these problems, namely solutions to technological capacity constraints by procuring production machines such as cutting machines, sitting drilling machines, compressor machines, work tables and wheelbarrows. Solution to marketing / distribution and managerial constraints by designing and manufacturing an Android-based Management Information System (SIMBA) (inventory management based on online purchase orders), and assist in the preparation of the company's income statement. Besides that, it also offers marketing media using neon box boards. The solutions provided can help increase the productivity of the Fortuna Handycraft SME in terms of production, digital marketing and managerial.
 
 
 

Prediction of stability against subsonic flutter for axial turbine machine compressor blade assemblies

The developed method for prediction of their dynamic stability limit is described for the first flexural and torsional modes of vibrations against subsonic flutter. It involves the use of the database of the critical reduced frequencies of the blade vibrations as a dynamic stability limit within the wide range of variations of the following characteristics: phase angle of flexural, torsional and flexural-torsional vibrations of the adjacent blades; attack angle; reduced vibration frequency; geometric parameters for the airfoil and cascade; law of motion for blade airfoils. The algorithm realized as the numerical software assumes the determination of the critical reduced frequencies in the most loaded section of the full-scale blade assembly via the analysis of the distribution of the relative flow rate, attack angle, amplitudes of vibrations over the blade height and the subsequent comparison with the functional defining its critical value for different attack angles. The results of practical implementation of the developed procedure are given for the assessment of the stability of the blade assemblies of axial compressors in some modern aircraft gas-turbine engine at the first flexural mode of vibrations. It is implied that the proposed method allows one to select the optimal reduced frequency of vibrations of the blade assembly for the specified geometry of its peripheral sections and attack angle of the mainstream flow upon the condition of subsonic flutter at the engine design state.