Uniformity Coefficient Research Articles

Thermal management of electronic components based on hierarchical microchannels and nanofluids

In order to enhance the heat dissipation of electronic components, hierarchical microchannels and nanofluids were applied into the thermal management of electronic components in this paper. Two kinds of hierarchical microchannels (rectangular microchannels and circular microchannels) were considered, and three different channel equivalent diameters (microchannel-a, microchannel-b, microchannel-c) of microchannel were analyzed. In addition to above factors, influence of nanoparticle concentration on the pressure drop, cooling uniformity, thermal resistance, and heat transfer coefficient was studied. For rectangular microchannel, microchannel-a has the lowest cooling uniformity and microchannel-b has the highest heat transfer coefficient, but for circular microchannel, microchannel-b has the lowest cooling uniformity and microchannel-a has the highest heat transfer coefficient. The comprehensive performance index of the microchannel was also studied. It can be concluded that the rectangular microchannel has a lower comprehensive evaluation coefficient than the circular microchannel. The maximum PEC of rectangular microchannel is 1.08, and the circular microchannel can reach 1.26. However, the heat transfer capacity of the rectangular microchannel is stronger, and the thermal resistance is about 0.00005 smaller than that of the circular microchannel.

Removal of Manganese and Iron from Groundwater by using Chlorination and Rapid Sand Filtration: A Case Study

The average groundwater extraction from Murunkan well field, Mannar, is around 3.4 MCM/year, and it was triggered by extensive development projects and resettlements that took place in the last decade. Manganese and Iron variations in Murunkan groundwater reported during some periods created various operational and aesthetic issues in the potable water supply. This study is focused on treating iron and manganese in groundwater using chlorination and Rapid Sand Filtration (RSF) techniques. Pebble layers, height of 205 mm with the particle sizes ranging from 2-25 mm, were filled at the bottom of RSF model filter. Filter media, height of 700 mm with 0.45 mm effective size (D10) and a uniformity coefficient (Cu) of 1.33, was placed above the pebble layers. The filter was operated continuously for 15 days, and influent and effluent water samples were collected from 15 trials. Filter backwashing was performed after every two trials to maintain a consistent filtration rate. Raw water pH values ranged from 6.74 – 7.48. Chlorine solution (1.08-1.26 ppm) was added at the inlet point, and a 2.88 m water column was maintained, allowing adequate mixing and oxidation time. The results revealed that average removals of iron and manganese as 60% and 73%, respectively, while maximum removals of 93% and 91% were observed for iron and manganese, respectively.

车载式施肥喷药机的设计与试验研究

In order to solve the problems of low efficiency of fertilization and spraying in the hilly mountains of China, a vehicle-mounted fertilization and spraying machine was designed. The whole structure and working principle of the machine were described, and the key components of fertilization and spraying are designed. The kinetics and kinematics of fertilizer particles and droplets were modeled by theoretical analysis of their motion characteristics in the air. The fertilization and variable spraying control system based on the core controller MCU (Microcontroller Unit) was set up. And the system can adjust the rotational speed of the disc and can automatically change the spraying volume by real-time detection of forward speed to achieve a constant spraying volume per unit area. The test results showed that: when the disc speed was greater than 90 r/min, the uniformity coefficient of variation was less than 15%, which satisfied the operational requirements; the uniformity coefficient of variation reached the minimum value of 10.03% when the disc rotation speed was 180 r/min, and the best fertilization performance was achieved at this time. In the spraying system, the actual spraying volume increased with the increased forward speed, and the relative error between the theoretical flow rate and the actual flow rate was 6.25% at most, and the average error was 5.94%, which could achieve the purpose of variable spraying. The research results can provide technical reference for the design and development of fertilization and spraying machinery in hilly areas.

FORMATION OF LEATHER FILLED WITH MODIFIED SYNTAN AND TANIDE COMPOSITION

The technology of manufacturing leather material for the upper of shoes from semi-finished chrome tanning obtained from raw cow hides been has been developed. The technology at the filling-plasticization stage involves the use of a syntane-tanide composition modified with alkylcarboxyethanolamine of aliphatic acids of fraction C7–9. The filling and plasticizing composition includes syntanе BNS TU 17-06-165-89 and mimosa extract tanids with a content of the main substance of 81.7%. The semi-finished product is plasticized with Fosfol L-1301 emulsion of Cromogenia Units, S.A., Spain. Chemical reagents in the structure of the material are fixed by potassium alum modified with sodium formate. All previous and subsequent processes and operations are performed according to the industrial technology of the enterprise “Chinbar”. The resulting semi-finished product is characterized by a volumetric yield of 256 cm3/100 g of protein, a specific surface area of 71 m2/g, which are 8.0 and 11.0% higher than the industrial sample. Deformation properties of topographic areas and coefficients of uniformity of topographic areas of leather materials at loads of 10.0 MPa and rupture were calculated. At the same time, a more effective characteristic of the homogeneity of the material structure is the uniformity factor at a load of 10.0 MPa. The leather material obtained by the experimental technology has a uniformly oriented structure with an arithmetic average coefficient of uniformity of 1.0, and the industrial material has a transversely oriented structure with an arithmetic average coefficient of uniformity of 0.83. The advantage of the experimental material over the industrial one in terms of the complex of physico-chemical and technological properties and the coefficient of uniformity increases the efficiency of its use for the manufacture of leather products. The obtained leather material meets the requirements of DSTU 2726-94 “Leathers for shoe uppers. Specifications”.

Fiber reinforcement effectiveness in two different sand specimens

Fiber Reinforced Soils (FRS) are mixtures of discrete fibers with the soil to create a composite with improved mechanical properties compared to unreinforced material that depends on several soil and fiber properties. Therefore, comparative studies are needed to better understand their influence on FRS mechanical response. This paper analyzes the results of a comprehensive triaxial testing program performed on specimens of two different sands at the same relative density focusing on how the grain size distribution affects the composite behavior in terms of shear strength and dilatancy. It is shown that the grain size curve’s uniformity coefficient (Cu) is one of the critical variables controlling FRS’s dilatancy. Dune sand specimens (Cu = 1.79) presented dilatancy even for confining stresses as high as 300 kPa. The shear gains due to reinforcement were controlled by fiber length (L) and percentage (Pf), and size and shape of soil particles. River sand specimens with L = 51 mm and 1% fiber addition (dry mass) presented increments of 47.7 kPa in soil cohesion and a 5.2o increase in the soil friction angle compared to unreinforced material.

Application for evaluation of the uniformity of systems of pressurized irrigation

The evaluation and monitoring of the performance of irrigation systems are crucial in maintaining water efficiency and conservation of water and energy resources. Therefore, the objective of this study was to develop and validate an application for the coefficient of uniformity coordinators of pressurized irrigation systems. So, the UniIrrig® application was developed, using the integrated development environment Android Studio10 version 4.0.1, in JAVA language, with applicability in devices with the Android operating system. For quantitative verification, the same input values in the UniIrrig® application were also inserted in Microsoft® Excel 2010, in all uniformity conductors used in the application. For the qualitative analysis, together with the experience of the user, 68 students of the Agronomy course at the Federal University of Ceará (UFC) participated in tests in order to evaluate the perception of usability, design, usefulness, and general satisfaction of the tool. To validate the application in the field, a uniformity test was carried out on a center pivot in the municipality of Cascavel, Ceará state, with the aid of collectors (Kit Fabrimar) to deliver the applied depth and the consequent result of the distribution uniformity coefficient (DUC), of Hart (HDC) and weighted mean depth analysis. These values were compared to the results obtained in Microsoft® Excel 2010. The dynamic analysis of the data evolved in “r”= 1, thus providing perfect adaptation between the results obtained by the application and by Microsoft® Excel, finding an error equal to zero. In the qualitative assessment, 84.1% consider the application a good tool for coefficient determination. It is concluded that the UniIrrig® application, designed for the Android operating system, can be used to quantify the assessed irrigation uniformity coefficients.

A study of lunar soil simulants from construction and building materials perspective

Ten lunar soil simulants originated from North America and Europe were analysed in this paper. Properties important from civil engineering perspective (especially for future large-scale field experimental studies associated with lunar aggregate and lunar concrete-like composite) were of special interest. The tested properties included: bulk density in loose and vibrated state, density measured using the pycnometer method, particle size distribution, median particle size, coefficient of uniformity, coefficient of curvature, cohesion, inner friction angle and angle of repose. A microscopic analysis was also conducted. The properties of soil simulants were compared to average properties of lunar soil brought by Apollo and Luna missions. Finally the Principal Component Analysis was performed in order to select simulants most similar to the lunar soil.

Ultrasonic sensor-based automatic control volume sprayer for pesticides and growth regulators application in vineyards

A study was conducted to design a sensor-based control volume sprayer for vineyard cultivation. The study aimed to develop cluster-specific pesticide and growth regulator application systems with improved penetration and minimum off-target losses, thus saving chemicals and overall cost. For the determination of design values of the control volume unit, physical properties (cluster length, width, and level of compactness) of grape clusters from seventeen major genotypes selected from vineyard research farm ICAR-IARI New Delhi were studied. For the design of the grape cluster detection unit, two different types of sensors, i.e., ultrasonic sensor (HC SR-04) and infrared proximity sensor (B0115NCT4U), were evaluated for their ability to detect the target (grape cluster) and the response time. The design of the spraying unit for the control volume sprayer also involved selecting suitable nozzles and operational parameters. The developed sprayer was evaluated for application of plant growth hormone (Gibberellic acid), and the performance was assessed in terms of droplet size, chemical application per cluster, cluster and berry growth characteristics, sprayer application rate, uniformity coefficient, and application time. The data on the physical properties of grape clusters revealed a maximum cluster length and width of 24.00 ± 0.91 cm and 18.80 ± 0.15 cm, respectively. The ultrasonic sensor had a comparatively higher sensing range, beam angle, and lower price than the infrared sensor. The spray uniformity for the hollow cone and flat fan nozzle varied significantly for the operating pressure range of 2–4.5 kg.cm−2. The developed sprayer consisted of a 3D printed control volume unit, ultrasonic sensor, two flat fan nozzles, microcontroller (Atmega 328P), relay switch, voltage converter, spray tank of 16-liter capacity, and 12 VDC battery. In case of developed sensor-based control volume sprayer, 30% and 35.48% saving in chemical use and application time, respectively, were observed compared to the conventional dipping method. The PGR application method has significant interaction with cluster length and berry growth as the main effect; however, failed to show a significant interaction with cluster width. Maximum cluster growth (16.89 ± 1.72 mm) was observed in PGR application with a developed sprayer.

Shear stiffness of sand-fines binary mixtures: Effects of sand gradation and fines content

In this study, a comprehensive experimental programme was carried out on five clean sands of different gradations mixed with low plastic fines using an apparatus that incorporates both resonant column (RC) and bender element (BE) functions. The sand gradation is characterized by uniformity coefficient of host sand (Cus) and grain size ratio (Rd), which is defined as the ratio of the mean grain size of sand to that of fines. The effects of fines content (FC) and sand gradation on small strain shear modulus G0 are analyzed from the experimental results. Both RC and BE test results show that G0 continuously decreases in a non-linear manner as FC increases to 30% and becomes as low as nearly 50% of that of clean sand at the highest FC. The reduction rates with respect to FC are similar regardless of the testing type and the stress dependence of G0 is insensitive to FC. Meanwhile, G0 decreases as Cus or Rd increases at a given FC and void ratio or at a fixed equivalent skeleton void ratio e*. A new predictive model in terms of e* is proposed to evaluate the G0 of sand-fines mixtures to account for the effects of void ratio, confining pressure, FC, and sand gradation within ±20% deviation. Moreover, the rate of shear modulus degradation with shear strain and the damping ratio are higher for sand-fines mixtures with higher FCs.

Experimental research on the jet-breaking characteristics and hydraulic performance of a novel automatic rotating sprinkler

Abstract To improve the performance of sprinklers that work under low pressure, a new type of automatic rotating sprinkler equipped with different water dispersion devices was designed and the jet diffusion angle and hydraulic performance of the new and original sprinklers were compared using experimental methods. The results indicate that, when the working pressure is below 200 kPa, the jet diffusion angle of the new sprinkler with the water dispersion device B is the largest. Although the pattern radius of the new sprinkler is slightly lower than that of the original, it is more effective in improving the combined coefficient of uniformity (CU) at lower working pressures. Specifically, when the working pressure was 100 kPa, the new sprinkler with the water dispersion device B, which has a square inner hole with a side length of 6.2 mm, improved the CU by 54.89% on average. Remarkably, the CU of the new sprinkler with water dispersion device B at a working pressure of 100 kPa was 6.65% higher than that of the original sprinkler at a working pressure of 200 kPa. The research results provide valuable insights into the design of sprinklers to improve the performance of low-pressure sprinkler irrigation systems.

Optimization of Key Hydraulic Structure Parameters of a New Type of Water–Pesticide Integrated Sprinkler Based on Response Surface Experiment

To meet the requirements of trellis grape crop root irrigation, spraying pesticides on branches and leaves, an integrated sprinkler was designed, which relies on the flow pressure to change the irrigation water and spray pesticide working modes. The structural parameters that affect the hydraulic performance were selected based on the working principle of the sprinkler. The key parameters for the irrigation mode included diversion hole inclination angle, refractive cone angle, refractive cone length, and cone hole distance. The key parameters for the spray pesticide mode included diversion chute width, the number of diversion chutes, the diversion chute inclination angle, the rotary acceleration chamber height, and the nozzle outlet cylindrical section length. The central composite design response surface tests of the water–pesticide integrated sprinkler were carried out; the analysis of variance and regression analysis were selected; the main influence rules and interactions of key structural parameters on irrigation performance and pesticide spraying performance of sprinkler irrigation system were obtained. The optimal parameters of the water–pesticide integrated sprinkler were: the diversion hole inclination angle is 20.8°, the refractive cone angle is 123.7°, the refractive cone length is 8.8 mm, the cone hole distance is 3.6 mm, the diversion chute width is 2.5 mm, the number of diversion chutes is 2, the diversion chute inclination angle is 10°, the rotary acceleration chamber height is 1.3 mm, and the nozzle outlet cylindrical section length is 0.7 mm. The irrigation hydraulic performance of the wetted radius is 3.4 m, the average irrigation application rate is 0.65 mm/h, and the uniformity coefficient is 88%. The spraying pesticide performance of the droplet volume mid-diameter is 200.2 μm, the droplet spectrum width is 2.2, and the droplet coverage is 9.4%.

Adapting climate resilient center pivot irrigation system through monitoring and operating under microclimate change: The case of Wonji-Shoa Sugar Estate, Ethiopia

Microclimate and physiological changes are consequences of the evaporation of water lost during and after irrigation and these losses depend on the application rates and irrigation duration under the center pivot irrigation system. This study analyzed the uniformity of water distribution and estimated water losses for the center pivot irrigation system, using a double row of catch can in the morning, midday and late afternoon. For this purposes multiple linear regression models were developed using the Software package for social science (SPSS) to estimate the water loss under center pivot irrigation system by determining the factors that predominately affect the applied water at Wonj-Shoa, Sugar Estate Ethiopia. The results showed that the center pivot irrigation system exhibited low distribution uniformity in the study area. The average values of coefficient of uniformity (CU) and distribution uniformity (DU), during the morning, midday and late afternoon were, 77% and 63%, 66% and 60%, 80% and 65%, respectively. At all the test times, the distribution uniformity was within the poor performance range. Water loss from the pivot ranged from 1.03% to 7.74%. The study concludes that; air temperature, relative humidity and travel speed of the last tower are the main factors that predominately negatively affect the applied water; hence, all stakeholders, government and managers of the center pivot should operate when the climate demand is low to increase the yield per applied water. This study has significant implications for improving climate resilience using precision irrigation.

The Particle Size Distribution of Laterite Soil at Ekosodin, Benin City, Nigeria

The laterite soil particle-size distribution provides a preliminary knowledge of the rate of failure and the strength of soil to resist load pressure and subsequent susceptibility to gully erosion. This study was carried out to determine the particle size distribution of laterite soil at Ekosodin, Benin City, Nigeria using appropriate standard methods. This was achieved by collecting a total of twenty soil samples from the gully zone of Ekosodin and carrying out sieve and hydrometer analyses on the recovered soil. The average percentage weight of fines smaller than the following grain diameters: 1.18mm, 0.425mm, 0.075mm, 0.040mm, 0.010mm, 0.003mm, and 0.001mm, were approximately 96%, 74%, 45%, 35%, 28%, 21%, and 15% respectively. The coefficient of uniformity and coefficient of curvature classified the laterite soil as a well graded soil consisting of a representative of all grain sizes in a good complementary proportion. However, the significant quantity of fine in the soil composition made it susceptible to gully erosion in the presence of intense water movement.

METHOD FOR INCREASING THE UNIFORMITY OF THE GAS-AIR MIXTURE IN INTERNAL COMBUSTION TRANSPORT ENGINES

Increasing the uniformity of the gas-air mixture in gas transport engines makes it possible to ensure more complete combustion of fuel, reduce its specific fuel consumption and exhaust gas toxicity. There are known ways to increase uniformity, but there is no generalization of their principles and applicability for various engines. The article analyzes the existing methods and identifies their shortcomings. A method has been developed to increase the uniformity of the gas-air mixture in gas transport engines by controlling the position of the gas fuel jet in the incoming air stream. The dependence for controlling the position of the gas jet in the air flow is described. The results of experiments performed by means of computer modeling with central and distributed gas supply with different gas and air pressures are analyzed. During the experiments, the coefficient of uniformity of the gas-air mixture was determined. Separately, the depth of penetration of the gas fuel jet into the incoming air stream is estimated. Based on the simulation results, the effectiveness of the method was justified.
 Purpose. Development of a method for increasing the uniformity of the gas-air mixture in internal combustion transport engines.
 Methodology. Modeling of the movement of a methane jet in an air stream by the finite element method was used in the work.
 Results. A method for increasing the uniformity of the gas-air mixture using the inlet pressure of the gas as the main variable parameter is formulated and justified.
 Practical implications. The obtained results should be used to improve the efficiency and environmental friendliness of gas transport engines.

Effect of inlet pipe design on self-cleaning ability of a circular tank in RAS

To improve the water reuse efficiency of circular recirculating aquaculture tanks in Recirculating Aquaculture Systems (RAS) this research investigated the effect of inlet pipe deployment distance d (the distance between the stream tube hole and the tank wall) and the inlet pipe deployment angle α (the acute angle between the inlet pipe jetting direction and the nearest tank wall) on the self-cleaning ability of the circular aquaculture tank under dual and single inlet pipe designs. First, waste collection experiments were conducted to figure out the preferable inlet pipe design based on the efficiency of waste collection. Then, flow field measurement experiments were carried out employing the Particle Image Velocimetry (PIV) technique to measure the flow field in the near bottom layer of the tank, and the essential mechanism of the inlet pipe deployment on the waste collection was explored by analyzing the flow field and the corresponding hydrodynamic characteristic indicators, such as the average flow velocity (vavg), the uniformity coefficient of water flow (DU50), and the water resistance coefficient (Ct). The results indicate that the variations of waste movement, flow filed and hydrodynamic indicators are consistent in both designs of dual inlet and single inlet, and merely differ in the absolute value. Based on the comprehensive analysis, the optimal performance of self-cleaning can be obtained at α=0°~10°, 20°~30°, 40°~50° for d=1/2 r, 1/4 r, and 1/50 r, respectively. At the same flow rate condition, the jetting velocity of the inlet pipe in the single inlet pipe design is significantly greater than that in the dual inlet pipe design, and the hydrodynamic characteristics of the waste collection are better. Therefore, in circulating water aquaculture production, it is recommended to design the inlet pipe in a similar aquaculture tank to the single inlet pipe with d=1/4 r, α=20°~30°, thus improving the self-cleaning ability of the aquaculture tank. The study results also provide a reference for adjusting the inlet pipe in circular recirculating aquaculture tank.

Evaluation of Uniformity Coefficient and Water Distribution Efficiency of Some Impact Sprinklers in Shambat, Sudan

This study was carried out during May and June 2010 in theDemonstration Farm of the Faculty of Agriculture, University ofKhartoum at Shambat, to evaluate water distribution under different typesof sprinkler heads. The study consisted of evaluating Christiansen'scoefficient of uniformity (CU %) and uniformity of distribution (DU %)under twin nozzle brass impact sprinkler (JIS2), twin nozzle plasticsprinkler (DAN4455) and single nozzle plastic sprinkler (LEGO55). Thetwin nozzle brass sprinkler gave significantly better values for allsprinkler configurations, while the difference between twin and singlenozzle plastic sprinklers was mostly insignificant. At low wind speeds(<2.0 m/s) and narrow configurations, the single nozzle plastic sprinklergave better values of CU% and DU%

Suitability of Conventional Ballast Mixed with Concrete Debris and Bottom Ash Waste

The use of waste materials as a substitute for natural aggregate has been widely tested in all areas of the construction industry. Yet, there is a lack of study on the suitability of the physical properties of waste material when used as one of the components in track ballast. This study evaluates the suitability of conventional ballast (CB) incorporated with concrete debris (CD) and bottom ash (BA) as track ballast material. To achieve the objective, sieve analysis, shape analysis, specific gravity test, water absorption test, and permeability test were carried out. Furthermore, microscopic analysis was used to validate the presence of voids. The result shows that the waste mixed ballast has a coefficient of uniformity (Cu) in the range of 1.92 to 12, a coefficient of curvature (Cc) in the range of 0.8 to 1.18, fines less than 14 mm account for 0.1 % to 28 %, and the mean size is in the range of 22.5 mm to 27.5 mm. Furthermore, the flakiness ranged from 7.56% to 22.5%, the void ratio was 0.43 to 0.55, and water absorption was 2.86% to 4%. The specific gravity was found to range from 2.30 to 2.77 when the permeability measurement was in between 30 cm/sec to 61 cm/sec. All these promising values of engineering properties exhibit the confidence of a suitable alternative to track ballast materials. Hence, CD and BA waste materials incorporated into conventional ballast have a high potential to exhibit better performance and reduce the dependency on natural aggregate.

Chemical Dissolution-Assisted Ultrafine Grinding for Preparation of Quasi-Spherical Colloids of Zinc Oxide

Submicron-sized quasi-spherical zinc oxide (ZnO) particles were prepared by wet ultrafine grinding in a stirred media mill under various conditions. The effects of parameters (i.e., solution type, acid or alkali concentration, solid content and grinding time) on the particle median size (d50), particle size distribution (PSD) and sphericity of ZnO particles was investigated. The results show that submicron-sized quasi-spherical particles (i.e., d50: 370 nm, uniformity coefficient (n) of 2.28 and sphericity of 0.91) can be obtained when the micron-sized ZnO particles are ground for 30 min in a CH3COOH solution at a concentration of 0.010 mol/L with 20 wt.% of solid content. The chemical dissolution of ZnO particles ground in the presence and absence of acetic acid is discussed. It is indicated that chemical dissolution accelerated due to the mechanochemical effects could reduce the particle size, obtain a narrower PSD and enhance the sphericity. In addition, the functions of selection and breakage were used to analyze the grinding mechanism of ZnO particles.

Study on the irrigation uniformity of impact sprinkler under low pressure with and without aeration

The distribution of water deteriorates when the operating pressure of an impact sprinkler (IS) decreases to some level. The aeration jet method is utilized to form an aeration impact sprinkler (AIS), aiming to improve the uniformity of water distribution under low pressure. Based on the structures of a 20PY2 impact sprinkler, an IS and AIS with the same sprinkler discharge were studied under operating pressures range between 150 and 250 kPa. A square test zone was formed by the four sprinklers, and the combined irrigation experiment was conducted under windless conditions. The results showed that the water loss ranged from 3% to 9.5% in all 18 test schemes. The coefficient of uniformity (CU) and distribution uniformity (DU) were used to quantify the degree of uniformity. The AIS had an approximately 3%–7% greater CU than the IS, which resulted in the CU reaching the specified value in the IS standard when the sprinkler functioned under low operating pressure. A linear relationship was found between the CU and DUlq. The uniformity of water distribution clearly changed with the operating pressure (150 kPa, 200 kPa, and 250 kPa) but decreased slightly with the increase in combination spacing (1 R, 1.1 R, and 1.2 R). In addition, the results of field experiment were compared with those of the simulation developed from a single sprinkler indoor experiment based on the water distribution radial curve. The simulated coefficient of uniformity was highly consistent with the experimental data and had an error of <7%. A sprinkler water jet with the aeration method was proven to be a feasible solution to reduce the operating pressure.

PERANCANGAN DAN UJI KINERJA SPRINKLER SEDERHANA

AbstractSprinkler irrigation is a way of watering plants by spraying water into the air andfalling on the ground to resemble rain. Sprinklers are generally applied to commodities withhigh economic value, so sprinkler prices are also quite expensive. Sprinklers currentlycirculating in the market are sold in various models, some can rotate 180 to 360 degrees withdifferent beam distances. The purpose of this research is to design and manufacture a simplesprinkler prototype and examine the performance of the sprinkler prototype that is made. Themethod used is the experimental method and the descriptive analysis method, which focuseson performance testing using the prototype sprinkler that is made. This study used severalcomponents of the equipment such as 6 sprinklers , water pumps and piping networks in aland area of 18 m × 12 m. The variables observed in the study included: water discharge,pump rotation (rpm), uniformity coefficient (CU), jet distance, use of pump fuel. The resultsof this study indicate that the application of sprinkler irrigation water uses 6 sprinklerprototypes that were made and a Korobe WR 20X water pump, with a time of 2 minutes, 6sprinklers can release 154.12 L/minute of water with an average pump speed of 3,758. 33RPM and spent as much as 45 ml/minute of fuel. The farthest distance of the sprinkler beamis 3.5 meters.Keywords: design, performance test, sprinkler, radiance, water discharge