scholarly journals Uji Kinerja Mesin Pencacah Plastik (Studi Kasus Bank Sampah Tasikmalaya (BST) di Kecamatan Singaparna, Kabupaten Tasikmalaya)

2018 ◽  
Vol 7 (3) ◽  
pp. 151
Author(s):  
Wahyu Kristian Sugandi ◽  
Asep Yusuf ◽  
Totok Herwanto ◽  
Sidik Maulana
Keyword(s):  
Noise Level ◽  
Performance Test ◽  
Descriptive Analysis ◽  
Engine Performance ◽  
Performance Testing ◽  
Plastic Waste ◽  
Engine Vibration ◽  
Inorganic Substances ◽  
Testing Data ◽  
The City

ABSTRACTGarbage is solid waste, consisting of organic and inorganic substances or materials that are considered to have no longer beneficial and must be managed properly so as not to endanger the environment. Garbage has been a complicated problem especially in big cities. Singaparna, Tasikmalaya  has been produced 154.72 m3 of plastic waste every day. Plastic waste collected by BST is only sort and sold at low prices to the city. To increase the sale value, the plastic waste needs to be chopped in advance. Therefore, the Laboratory of Agricultural Equipment and Machinery FTIP Unpad had developed a plastic waste counting machine to be applied to the community, especially in BST to produce the desired plastic count. However, this machine not yet performance testing data, so it needs to do research regarding performance tests. The purpose of this study is to examine the performance of the plastic counter machine which includes measuring the capacity of the machine, calculating the rendering yield, calculating the length of the enumeration measuring the engine noise level and measuring the engine vibration level. The research method used had descriptive analysis method, it was measuring and calculating the structural components and engine performance. The results of the study in measuring the performance test showed that the actual capacity of the machine was 19.18 kg / hour, the enumeration chopper was 84%, the percentage of plastic chopping length was 86.89%, the noise level was 104.77dB, and the engine vibration was 18.3 mm / s. Key Note : plastic chopper, performance test, tasikmalaya garbage bank

scholarly journals UJI KINERJA DAN ANALISIS EKONOMI MESIN PENEPUNG BIJI JAGUNG (Studi Kasus di Desa Cikawung, Kecamatan Ciparay, Kabupaten Bandung)

2019 ◽  
Vol 8 (2) ◽  
pp. 107
Author(s):  
Wahyu K Sugandi
Keyword(s):  
Economic Analysis ◽  
Performance Test ◽  
Animal Feed ◽  
Descriptive Analysis ◽  
Economic Feasibility ◽  
Engine Fuel ◽  
Milling Machine ◽  
Power Requirement ◽  
Machine Performance ◽  
Engine Vibration

Animal feed is substantial in the livestock industry. There is a stock breeder in Cikawung, Ciparay sub-district for enlarging broiler chicken. But the breeder has constraints with the high prices of animal feed. Otherwise, high amount of corn is an opportunity for breeders to save operational cost for animal feed. The purpose of this research was to test the performance and economic analysis on corn milling machine whose have been developed by Agricultural Machinery Laboratory of FTIP Unpad and applied to breeder. The method used in the research is descriptive analysis by measuring and calculating on performance and economic feasibility of machine. The result of machine performance test showed the theoretical capacity for 54,53 kg/hour, actual capacity is 29,73 kg/hour, machine efficiency is 54,52%, actual power requirement of machine without load and with load are 3,12 HP and 4, 37 HP, engine fuel consumption with no-load and loads of 0,96 liters/hour and 1,41 liters/hour, thermal efficiency ranges from 21-28%, shrinkage losses 2,65%, yield 97,35%, engine noise level of 83 dB, and with load of 86,93 dB, and engine vibration rate exceeding 4,5 mm/s (not allowed). The results of economic analysis showed that BEP achieved after the machine produces 48.657,83 kg corn flour. The corn milling machine fulfilled the criteria of economic feasibility indicated by positive NPV value, IRR of 25,67%, B/C Ratio of 1,012 and PBP for 2,75 years.

scholarly journals Modification and Performance Test of Prototype I Washer Machine

2021 ◽  
Vol 9 (8) ◽  
pp. 1086-1090
Keyword(s):  
Sweet Potato ◽  
Performance Test ◽  
Engine Performance ◽  
Design Activity ◽  
Performance Tests ◽  
Engine Vibration ◽  
Routine Design ◽  
New Construction ◽  
And Performance ◽  
Power Needs

The sweet potato (Ipomoea batatara L.) is one of the world’s important tubers with a production of more than 133 million ton. In 2019, the Laboratory of Agricultural Equipment and Machinery designed a Prototype I Washer The machine is not optimal, reaching 67.13%, and it needs to be modified because the skin of the sweet potato is cleaned and exfoliated so that it can reduce the quality of the sweet potato. The method used in this research is engineering, which is a non-routine design activity with new construction of process and product. Base on Matlab program, the result of the modification research and performance tests, is by using the prototipe I washer, the percentage of the level of cleanliness was 80.02%. Where with an increase 67.13% using the performance machine. Based on the evaluation of technical feasibility and engine performance tests, it is found that the propulsion power needs 1 HP and the deflection of the frame is only 13.06 mm. The theoretical capacity of the engine is 231.68 kg.hour-1, the actual capacity is 100 kg.hour-1 with an efficiency of 44.39%, the noise level of 77 dB and the engine vibration of 13.43 m.s-1.

scholarly journals Site Performance Testing of CW251B10 Gas Turbines

1989 ◽  
Author(s):  
Ihor S. Diakunchak ◽  
David R. Nevin
Keyword(s):  
Gas Turbines ◽  
Performance Test ◽  
Test Procedure ◽  
Engine Performance ◽  
Performance Testing ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Test Results ◽  
Analysis Method ◽  
Industrial Gas Turbine

The site performance testing of CW251B10 industrial gas turbine engines is described in this paper. A brief description is provided of the test procedure, the special instrumentation used during the test, and the derivation of the test tolerances. The test data analysis method and the associated correction curves and tables are described in some detail. Typical engine site performance test results are presented and compared to the original predicted engine performance.

Promoting Performance Test Capabilities Using Gas Path Analysis: A Case Study

2009 ◽  
Author(s):  
Vahid Noei Aghaei ◽  
Hiwa Khaledi ◽  
Mohsen Reza Soltani
Keyword(s):  
Path Analysis ◽  
Gas Turbine ◽  
Test Data ◽  
Performance Test ◽  
Engine Performance ◽  
Performance Testing ◽  
Health State ◽  
Component Level ◽  
Engine Operation ◽  
Expected Values

Performance testing of gas turbine packages is becoming increasingly common to assure that the turbine output power and efficiency meet the expected values during the turbine life cycle. In the conventional Performance Test Analysis (PTA), field measurements and calculations are carried out on the basis of standard codes to find the whole engine performance parameters (i.e. power and efficiency) at test conditions and to compare them with the expected values. Recently, regarding the development of Gas Path Analysis (GPA) and diagnostic techniques to investigate the gas turbine health state, performance test capabilities can be improved by using these analyses to perform further examination on the measured test data and to determine the deviation of gas turbine component health parameters from the “new and clean” health state during the engine operation. Determining the mentioned deviations, potentials of engine improvement in the component level can be obtained and subsequently the action-oriented recommendations are reported as guidelines in the overhaul. Also in the case of performance test after the overhaul, the main result of the GPA application in PTA is the verification of the overhaul effectiveness. Using the GPA in the cases studied in this paper indicates that heath state of engine components can be investigated from the performance test data and as the main result, it is show that applying the GPA, it is possible to distinguish the effect of non-recoverable degradation and that of the poor overhaul on the engine performance and finally to assess technically the effectiveness of overhaul.

scholarly journals Assessment of Athletic Development in Youth Players – Goal Setting with Normative Data from Basketball

2021 ◽  
Author(s):  
Christoph Schneider ◽  
Janina Fett ◽  
Hubert Remmert ◽  
Alexander Ferrauti
Keyword(s):  
Physical Performance ◽  
Effect Size ◽  
Performance Test ◽  
Performance Testing ◽  
Age Group ◽  
Size Scale ◽  
Age Related ◽  
Norm Values ◽  
Testing Data ◽  
Athletic Development

INTRODUCTION The nationwide implementation of physical performance test batteries for youth squad players can be valuable for compiling individual physical performance profiles based on age- and gender-specific norm values. This approach is frequently used for optimizing training prescription and thus athletic development. The aim of this study was to introduce a distribution-based approach to derive an effect size scale for assessing athletic development from normative testing data in youth players, which can then be translated to setting performance goals for athletic development.METHODS Secondary analysis of norm values (mixed longitudinal and cross-sectional data [1]). In the age-groups under 12 to under 17, a maximum number of 1,172 and 846 tests were available for male and female basketball squad players, respectively. Biannual testing was conducted as part of a federal research project (20-m sprint, 20-m change of direction sprints with/without basketball, jump & reach, standing long jump, chest pass, mid-range jump shot, multistage fitness test). An effect size scale was derived from norm values which were available as quintile scores (five categories). Trivial changes were defined as the age-related mean annual performance development which was estimated as the average age-group-to-age-group change for the quintiles. Threshold values for small, medium, and large changes were calculated as average changes that were required to increase performance classification by one, two or three categories, respectively. These thresholds were additionally compared to the default effect size scale commonly used for interpreting standardized mean differences (between-player standard deviation: small 0.2, medium 0.6, large 1.2 [2]).RESULTS For example, the age-related mean annual development in the jump & reach for male players was 4 cm (trivial change). To reach one, two or three higher performance categories, jump height must improve by 8, 12 and 15 cm, respectively (i.e., small, medium, large). Compared with the default standardized effect size scale, these quintile-based thresholds were larger.CONCLUSION The quintile-based analysis presents a simple and practical approach to derive effect size thresholds based on norm values created from regular physical performance testing. These effect size scales can be easily visualized and communicated to players and coaches, as they are typically familiar with percentile-based performance classification of testing data. A limitation of this study was that only norm values in the form of quintile scores were used for analysis. Future research should attempt to model longitudinal datasets while accountingfor within- and between-player effects. Furthermore, the choice of appropriate and realistic percentilebased thresholds clearly remains up for debate and requires adequate analysis of original longitudinal data.REFERENCES 1. Stadtmann (2012) PhD thesis, Ruhr University Bochum. 2. Hopkins et al. (2009) MSSE,41,3-12.

scholarly journals KAJIAN TEKNO EKONOMI UNIT ALAT PENCACAH PLASTIK UNTUK MENINGKATKAN NILAI JUAL SAMPAH PLASTIK: STUDI KASUS-UD. SARI PLASTIK LOMBOK TIMUR, NTB

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
I Made Suartika ◽  
Made Wijana ◽  
Muhamad Sudrajadinata
Keyword(s):  
Quantitative Method ◽  
Raw Materials ◽  
Production Capacity ◽  
Engine Performance ◽  
Plastic Waste ◽  
Original Form ◽  
Selling Price ◽  
Total Cost ◽  
Purchase Process ◽  
The City

Processing plastic waste in East Lombok mostly just collect plastic waste processing and then sent to the city in its original form. If the plastic waste is processed by applying plastic shredded units or chopper machine technology, the sale value of the plastic waste will be increased. This study describes to determine of feasibility technical and economic aspects to apply the plastic shredder units. The method used in this study is quantitative method in which the author will be a number of data collection is needed in relation to the issues to be examined, so that the research results can be trusted and relied upon the truth. The results of the study found that the engine performance in terms of the efficiency of each stage of the production process of shredded plastic. To purchase process stages, sorting, drying, packaging, and selling obtained an efficiency of 0.938, while the efficiency of the shredding process is 0.906. Furthermore, to obtain a production capacity of 1230.01 kg/day processing owners must buy raw materials 1588.34 kg/day by the number of machines required 2 units of 3 units of existing plastic shredder. So based on the feasibility analysis in terms of the value of BEP, obtained at 29092.03 kilogram production capacity, with a total cost of Rp 176,424,168.75, NPV Rp 113,545,038.34 (>0) and Net B/C ratio of 1.79 (>0) otherwise feasible. By optimizing the engine to 3 units obtained BEP value equal to the NPV Rp 385.139.485,25 (>0) and Net B/C ratio of 4.01 (>0). From the analysis of the value of shredded plastic BEP selling price is higher than the selling price of plastic intact from Rp 3,531/kg into Rp 6.064,35/kg.

scholarly journals Design of Cilembu Sweet Potato Cleaning Machine

2019 ◽  
Vol 9 (2) ◽  
pp. 5054-5058
Keyword(s):  
Sweet Potato ◽  
Performance Test ◽  
Production Capacity ◽  
Engine Performance ◽  
Performance Testing ◽  
Potato Production ◽  
Angle Of Repose ◽  
Sweet Potatoes ◽  
Local Product ◽  
Cleaning Machine

Sweet potato is a food local product that it is very popular in domestic and foreign consumers. This is because the unique sweetness taste when consumed directly by the consumers. Cilembu Village, in Sumedang is a center of sweet potato production which has been exported to Malaysia, Japan, Korea and Singapore with a production capacity of 10 ton.ha-1 . Unfortunateyl, sweet potatoes cleaning process is still low, with about 50 kg.day-1 - 70 kg.day-1 because of it’s manually and conventional processed. In order to increase the cleaning capacity, it was neccesary to do the the research of sweet potato cleaning machine technology . The aim of this study was to design a prototype of sweet potato cleaning machine with a capacity of 100 kg.hr-1 . The method conducted in this research was engineering design with observation of research, characteristics with sweet potato, design criteria, functional and structural design, figure design, technical analysis, mechanism process, functional machine and performance test. The measurement results of sweet potato showed that the bulk density, angle of repose, roundness are 562.52 kg.m -3 , 70.500 , 0.1. The clening machine prototype was produced with dimension of 400 mm (length) x 490 mm (height) x 400 mm (width) with a power source generator using 1 HP electric motor. The resulted of sweet potato cleaning machine functional test showed that actual capacity was 103 kg.hr-1 . In general, the results of engine performance testing can be concluded that the machine can function properly, which can clean sweet potatoes from soil dirt

scholarly journals UJI PERFORMA MOTOR MATIC 110 CC DENGAN KONSEP BI-FUEL (GASOLINE-LPG)

2020 ◽  
Vol 6 (2) ◽  
pp. 112
Author(s):  
Achmad Aminudin ◽  
Indah Puspitasari
Keyword(s):  
Performance Test ◽  
Engine Performance ◽  
Performance Testing ◽  
The Other ◽  
Fuel Oil ◽  
Liquefied Petroleum Gas ◽  
Chassis Dynamometer ◽  
Research Focus ◽  
The Public ◽  
Gas Fuel

Converter kits are equipment used to translate fuel oil (CNG) into gas fuel (CNG) in convertible vehicles. The use of a converter kit with CNG liquefied petroleum gas (LPG) will be used to optimize engine performance while driving, but its use is not yet known among the public because it is not affordable and there is no transition from fuel to consumed gas. Therefore, it is necessary to design a simple converter kit, affordable by the community, and can be supported on two different fuels. This study redesigned the manual converter kit with a research focus on aluminum gas mixer components with variations in the number of intake mixers (1, 2, and 3) and added mixing zones in the mixer area, using 110 cc single cylinder motorized engine with carburetor fuel system with a variation of 1500-9000 rpm. Engine performance testing is done using a chassis dynamometer. The use of LPG fuel in various types of input mixers is able to increase torque and power on the engine. Engine performance test data shows that the best torque value on the use of LPG materials in input mixer 1, 2, and 3 holes respectively are 17.44 Nm, 16.77 Nm and 11.71 Nm, while for gasoline fuel is 16 Meanwhile, the value of power in the use of LPG fuel with the input of mixer 1, 2 and 3 holes is capable of producing maximum power respectively 7.1 Hp, 7.4 Hp and 7.3 Hp, while for gasoline fuel at 7.7 Hp. The use of LPG fuel with the number of 1 hole mixer input is the best variation compared to gasoline fuel and the number of mixer inputs in the other variations.

Pengaruh Kotbah, Musik Gereja Dan Fasilitas Gereja Terhadap Tingkat Kehadiran Jemaat

2016 ◽  
Vol 1 (1) ◽  
pp. 1-15
Author(s):  
Frederich Oscar Lontoh
Keyword(s):  
Regression Analysis ◽  
Multiple Regression Analysis ◽  
Church Music ◽  
Pearson Correlation ◽  
Descriptive Analysis ◽  
Target Population ◽  
The Other ◽  
Pearson Correlation Coefficient ◽  
Christian Church ◽  
The City

This research is titled " The influence of sermon, church music and church facilities on the level of attendance”. The purpose of research is to identify and analyze whether sermon, church music and church facilities have influence on the the level of attendance. The target population in this study is a Christian church members who live in the city of Surabaya.. Sample required is equal to 47 respondents. Through sampling stratified Random techniques.These influence was measured using Pearson correlation coefficient and multiple regression analysis, t-test and analysis of variance. Descriptive  analysis  were taken to analyze the level of attendance according to demographic groups.The hypothesis in this study are the sermon, church music and church facilities have positive and significant on the level of attendance. The results showed that collectively, there are positive and significant correlation among the sermon, church music and church facilities on the level of attendance  96,2%. It means that 96,2 % of level of attendance influenced by sermon, church music and church facilities and the other 28,9% by others. All of the variable partially have significant correlation to level of attendance.

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