Now showing items 113-132 of 154

    • Potential of vertical axis hybrid wind turbine use in Perlis 

      Nurul Razliana, Abd Razak; Ismail, Daut, Prof. Dr.; Mohd Irwan, Yusoff; Farhana, Z.; Risnidar Chan Bahaudin, Ir.; Noor Syafawati, Ahmad (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      In recent years, wind energy is one of the fastest developing renewable energy sources technologies across the globe. Wind energy conversion given a serious consideration in Malaysia since it is located in the equatorial ...
    • Power electronics education using Mathcad 

      Kennedy, Robert T.; Ismail, Daut (Universiti Teknologi Malaysia (UTM), 2005-12-13)
      Advancement in technology and the resulting affects on curriculum content in an attempt to meet employer's needs requires careful consideration to avoid 'over pruning' essential basics. Developing delivery methodology that ...
    • Power flow tracing via modified proportional tree method 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut, Prof. Dr.; Mohd Suhaizal, Abu Hassan (Universiti Malaysia Perlis (UniMAP), 2008-03-08)
      Tracing the flow of electricity becomes an important issue under deregulation system. It is more complicated compared to other fields due to norlinear nature of power flow and specific properties of electricity. Since the ...
    • Power losses on grain oriented and non-grain oriented materials using epstein test for electrical machine design 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Mohd Asri, Jusoh; Gomesh Nair, Shasidharan; Syatirah, Mohd Noor; Mohd Muzhar, Ahmad Tajuddin (ACTA Press, 2009-10-12)
      Modeling and definition of procedures leading to a good estimation of power losses in electrical machines from materials test data still is a challenge. The materials used in this experiment are grain oriented (GO) and ...
    • Power losses test for electrical machine design on non-grain oriented different thickness material 

      Md. Reza, Mohyin; Ismail, Daut, Prof. Dr.; Nor Ashbahani, Md. Kajaan (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper examines the effect of thickness in power loss for non-grain oriented material. In this paper, Epstein frame is optimized for both materials and the data is presented based on 50 Hz. The leakage flux is investigated ...
    • Power quality and electromagnetic compatibility -The 'simple or not so simple' ubiquitous power supply input stage - 

      Kennedy, Robert Teasdale; Ismail, Daut (Institute of Electrical and Electronics Engineering (IEEE), 2008-12-01)
      Power Quality is per se the ac line input voltage quality that in turn is determined by the interaction of the source impedance and the line current. Low frequency line current harmonics up to the 40th harmonic (2 kHz for ...
    • Power quality and electromagnetic compatibility -The 'simple or not so simple' ubiquitous power supply input stage - 

      Robert, Teasdale Kennedy; Ismail, Daut (Institute of Electrical and Electronics Engineering (IEEE), 2008-12-01)
      Power Quality is per se the ac line input voltage quality that in turn is determined by the interaction of the source impedance and the line current. Low frequency line current harmonics up to the 40th harmonic (2 kHz for ...
    • The power quality impact of adjustable speed drives in industrial distribution system 

      Surya, Hardi; Ismail, Daut; Mohd Irwanto; Mohd Herwan, Sulaiman; Risnidar, Chan; Indra, Nisja (Universiti Malaysia Pahang (UMP), 2009-06-20)
      Applications of adjustable speed drives (ASDs) have benefited many industrial facilities. The primary function function of any speed drive is to control the speed of a motor. This control technique can significantly ...
    • Predicting an investigation of flux distribution in three phase induction motor stators by using different stator slot sizes 

      Nor Shafiqin, Shariffuddin; Ismail, Daut, Prof. Dr.; Yanawati, Yahya; Pungut, Ibrahim; M., Abdullah; Nair, Gomesh (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-09-16)
      The predicting of different stator slot sizes on flux distribution in three phase induction motor is presented. For both stator models, the maximum flux density is found near the tooth tip and minimum towards the outer ...
    • Predicting the localized flux distribution in three phase induction motor between different stator slot size 

      Ismail, Daut, Prof. Dr.; Dina Maizana, Maiz Ahmad, Dr.; Nor Shafiqin, Shariffuddin; Nasrul Helmei, Halim; Yanawati, Y.; Mohd Asri, Jusoh; Gomesh Nair, Shasidharan; Pungut, Ibrahim; Abdullah, M.; Syatirah, M. N. (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)
      A three phase induction motor differences of stator slot size is investigated in terms of its localized flux distribution. The search coil induced voltage method is used to analyze the flux distribution in the stator core. ...
    • Relationship between the solar radiation and surface temperature in Perlis 

      Ismail, Daut, Prof. Dr.; Mohd Irwan, Yusoff; Safwati, Ibrahim; Muhammmad Irwanto; Gomesh Nair, Shasidharan (Trans Tech Publications, Switzerland., 2012-06)
      Statistical models for predicting the solar radiation have been developed. In any prediction of the solar radiation, an understanding of its characteristics is of fundamental importance. This study presents an investigation ...
    • Response of induction motor to balance voltage sags and momentary interruption 

      Surya, Hardi; Ismail, Daut, Prof. Dr.; Che Mat, Hadzer; Risnidar, Chan, Ir.; Muhammad Irwanto; Pungut, Ibrahim (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper presents result of experimental study of induction motor behavior when subjected to voltage sags and interruption. Small induction motors were used to investigate this phenomenon. A shaffner “Profline 2100” EMC ...
    • Review of study to improve dye sensitized solar cells performance by TiO2 thickness and extract mangosteen pericarp as sensitized 

      Ismail, Daut, Prof. Dr.; Muhammad Fitra, Zambak; Muhammad Irwanto; Gomesh Nair, Shasidharan; Mohd Irwan, Yusoff (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      Based on the process and observation of this paper electrical energy conversion efficiency in dye sensitized solar cell performance is strongly influenced by the dye and the thickness Titaniuam dioxide. Both of these items ...
    • A review on existing and future energy sources for electrical power generation in Malaysia 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib (Elsevier Ltd., 2012-08)
      As the electricity demand is affected by population growth, Malaysia towards an industrialized nation is considering the options for future energy sources for its power generation. Besides the conventional four-fuel mix, ...
    • Sensitivity of low voltage consumer equipment to voltage sags 

      Surya, Hardi; Ismail, Daut, Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      Voltage sag is an issue that is becoming increasingly important to electricity consumers at all level of usage. These result from with increasing use of electronic equipment in several sectors for the reason to improve ...
    • Simplification of sun tracking mode to gain high concentration solar energy 

      Omar, Aliman; Ismail, Daut; Muzamir, Isa; Mohd Rafi, Adzman (Science Publications, 2007)
      Power conversion from solar thermal energy to electrical energy is still very cost-intensive. Serious effort has to be given in the development of the concentrator or heliostat structure expenditure which contributing the ...
    • Simulation of flux distribution and loss calculation at three-phase transformer core with the mix 60o-45o T-joint 

      Dina Maizana, Maiz Ahmad; Ismail, Daut, Prof. Dr.; Rosnazri, Ali; Syafruddin, Hassan; Risnidar Chan Bahaudin, Ir. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper describes the result of simulation of flux distribution on 100kVA 3phase distribution transformer assembled with 23o T-joint and mitred lap corner joint with stagger yoke and limb for one lamination. The ...
    • Smart smoke ventilation and power generation (SSVPG) 

      Ismail, Daut, Prof. Dr.; Shasidharan, Gomesh Nair; Muhammad Irwanto; Mohd Irwan, Yusoff; Muhammad Fitra, Zambak (Korea Invention News, 2012-11-03)
      Awareness towards green energy is on the hike and has been proven by many products being manufactured or pre-required to be assembled as energy saving devices mainly to save consumer from spending more on utility billing.
    • Solar Powered Water Pump Prototype 

      Ismail, Daut, Prof. Dr.; Zainuddin, Mat Isa; Rosnazri, Ali; Muhammad Irwanto, Misrun; Surya Hardi, Amrin, Ir.; Syafruddin, Hassan, Ir.; Noor Syafawati, Ahmad (Malaysian Invention and Design Society (MINDS), 2010-05-14)
      Photovoltaic (PV) water pumping powered by PV application is one of the most common used throughout the world. However, the solar energy application is not widely been used in Malaysia. Improving in paddy production was ...
    • Solar PV and grid-connected electricity system with multiple modes operation for homes and buildings 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib, Assoc. Prof. Dr.; Tunku Muhammad Nizar, Tunku Mansur; Nor Hanisah, Baharudin (Praise Worthy Prize S.r.l., 2012-04)
      This paper presents the designed proposal of a solar PV and grid-connected electricity system with multiple modes operation for homes and buildings. It introduces to a more resourceful solar PV system that suits with the ...