Now showing items 21-40 of 42

    • Energy saving strategies in refrigeration systems by defrost management 

      Meeiam, Teerapong; ธีรพงศ์ มีเอี่ยม (2021-01-31)
      Defrosting at evaporator panel is one of working cycles in freezer. Power consumption in defrosting does not meet the objective of using freezer, therefore, the approach to decrease power consumption in defrosting is one ...
    • Lightning performance assessment of MEA subtransmission and distribution lines 

      Supanus, Kamol; กมล สุภานัส (2021-01-31)
      Design of grounding system to protect against lightning and fault is important for both safety and reliability especially for Metropolitan Electricity Authority (MEA) as mostly Metropolitan Electricity Authority operates ...
    • Analysis of power quality in distribution system with wind power generator 

      Phromtrai, Phirasak; พีระศักดิ์ พรมไตร (2020-09-29)
      This Thesis presents an analysis of wind turbines in a power distribution system that has a wind power source. By comparing the wind turbine with 3 blades and 4 wind turbines while there is no distribution in the distribution ...
    • A comparison of electrical power of the diesel electric locomotive between measurement via the remote tracking and the load test station. 

      Ritthong, Natthakit; ณัฎฐกิตติ์ ฤทธิ์ทอง (2020-09-29)
      Rail transport is a type of transportation that strongly influences economic due to its ability to transport a large number of passengers and products per trip relying on diesel-electric engines. The objectives of this ...
    • A Design and build motorcycle dummy crash test human body in thailand 

      Dangchat, Manus; มานัส แดงชาติ (2020-09-12)
      The aim of this research is to design a prototype of a male dummy chest for motorcycle crash tests. The primary criteria discussed in this study are based on the unique features of Thai ergonomic body sizes with an age ...
    • A Study of magnetic efficiency from composite materials for industrial use 

      Aitviriyaphan, Vanussanun; วนัสนันท์ อิษฎ์วิริยะพรรณ (2020-09-12)
      The magnetic properties of Ba2FeMoO6 (BFMO) BaCO3 (Barium carbonate, 99.9%), Fe(NO3)3.9H2O (Iron(II) nitrate, 99.0%) and Mo03 (Molybdenum trioxide, 99.0%) have been characterized. A slurry was prepared by mixing the powders ...
    • Reliability improvement of electrical system for electric mass rapid transit train 

      Laknapachuenkul, Saran; ศรัณย์ ลัคณาพาชื่นกุล (2020-01-10)
      The propose of this research present a comparative study of the Reliability Improvement of Electrical System for Electric Mass Rapid Transit Train which describes in term of the power supply efficiency including voltage ...
    • Ceramic armor plates with composite materials 

      Chaimahapuk, Chaiwat; ชัยวัฒน์ ไชยมหาพฤกษ์ (2020-01-10)
      This research has been studied and created the ceramic armor plates with composite materials that been proceeded from drying compression process with mold. Al2O3 that use for compression forming has been analyzed by SEM ...
    • Power factor correction by reactive power control method 

      Boobpa, Chatpong; ฉัตรพงษ์ บุบผา (2020-01-10)
      To Improvement the power factor is very important. Because the costs are increased or reduced. To Improvement the power factor, the higher the value, it is necessary to buildings, offices and industrial buildings or the ...
    • Harmonic current detection of adaptive active harmonic filter using rls algorithm 

      Prugpadee, Chanchai; ชาญชัย พฤกษ์พาดี (2020-01-10)
      This thesis proposes a method for detecting harmonics current in the adaptive active harmonic filter with Recursive Least Square (RLS) algorithm. The proposed method is based on the theory of noise cancellation adaptive ...
    • Frequency response analysis for power transformer 

      Thaweewong, Teerapat; ธีรภัทร ทวีวงศ์ (2020-01-10)
      This paper presents an analysis of transformer faults to determine the damage occurring within the transformer by the frequency response analysis (FRA) method. Enter the frequency from 10 Hz to 3 MHz, and then the measured ...
    • Developing workpieces high hardness special tungsten carbide mix TaC, TiC, NbC and Co 

      Samarnpong, Harnnarong; หาญณรงค์ สมานพงษ์ (2020-01-10)
      The objective of this study was to investigate mechanical properties, namely hardness of cemented tungsten carbide workpieces, which were the mixture of 75 wt% tungsten carbide (WC) and 8 wt% -10 wt% cobalt (Co) as the ...
    • Multi-Peak detection and histogram equalization for minimum mean brightness preserving 

      Wunmaesod, Dolrawe; ดลรวี วุ่นแม่สอด (2020-01-10)
      The sharpness of the image, the current demand is increasingly high. Since many types of screens has developed a definition and high definition media support for secondary NICs modern electronica. But if we have information ...
    • Optimal economic dispatch for contingency in power system 

      Kasemsatitwong, Nukul; นุกูล เกษมสถิตย์วงศ์ (2020-01-10)
      This thesis presents an application of particle swarm optimization technique (PSO) to optimal economic dispatch analysis in power system with contingency criteria for management power system operation cost, power loss ...
    • High resolution sharpening in wavelet base Image fusion on pca transform technique 

      Keerin, Patchaya; พัชยา คีรินทร์ (2020-01-10)
      Currently, the edge image is regarded as important in the process of digital image processing. Because in the field of image processing in certain fields require lines or the edge of a complete description of the image ...
    • Power quality analysis of solar power plant 1 mw and impacts an economic value in distribution power networks 

      Charlangsut, Narate; นเรศ ชลังสุทธิ์ (2017-10-31)
      This thesis presents the Power Quality (PQ) analysis of solar power plant 1MW and economic impacts in the distribution power networks. The case study focuses on the penalty fee (fine) from consume the reactive power less ...
    • Assessment of voltage sag in transmission system with distributed generation 

      Thongplaw, Akekawatn; เอกวัฒน์ ทองเปลว (2017-10-28)
      This thesis presents an assessment of voltage sags when faults are happened in the 115 kV transmission line of the Provincial Electricity Authority (PEA) when distributed generation (DG) is installed in the system. The ...
    • Image fusion of the remote sensing image data using wavelet combined transformation 

      Rexrojrat, Supoj (2017-10-09)
      The data fusion is implement to take the survey data remotely from difference sources and have various looks to be combined to get a new agents. To get better quality of data, we will present a method of fusion by wavelet ...
    • Voltage analyzed for influencing the energy of industrial factory at 22 kV 

      Udompornvirat, Sureerat (2017-10-09)
      This thesis presents a method of compare the reducing high voltage source more than necessary to the pilot study two plants in case of load near power station the same distance but different. There are 2 methods, first ...
    • Design and application of a smart farm base on IOT 

      Lumniam, Teerachai (2017-10-09)
      Thesis was studied and designed to merge IoT (Internet of Thing) in agricultural technology. By the IoT technology used the sensor and transducer technology to record parameters for monitoring automatically many orchard. ...