Product improvement by using design for assembly : a case study on heavy duty staple gun by Muhamad Faiz, A Razak

Get full text

PC based DC motor speed control by Mohamad Azizi, Omar

“…The motor averages the input duty cycle into a constant speed which is directly proportional to the percent duty cycle. …”
Get full text

Effect of ultrasound on anaerobic fermentation by Saccharomyces Cerevisiae by Nusaibah, Ghazali

“…Then the sample was attached to the ultrasound with two different duty cycles which is 10% and 30% duty cycle. After that, the sample was analysed. …”
Get full text

Process simulation and improvement of industrial acid gas removal unit (AGRU) by Nurfarah Aaina, Mohd Zulkifli

“…Even though there is no change for heating duty, the cooling duty requirement however can be reduced by 17%, which saves about RM 27324 per year for the amine solution. …”
Get full text

Stripper model for co2 removal from iron ore reduction unit using amine scrubbing process by Peng, Hoe Hoi

“…From the results, it showed that the increase in stripper with higher MEA concentration had reduced the reboiler duty up to 20 % and higher rich solvent temperature were able to reduce the reboiler heat duty. …”
Get full text

Effect of solvent : solid ratio, solvent, temperature, time and method on extraction on total phenolic compound from propolis (Trigona Thoracica) by Hew, Chan Phang

“…The ultrasound extraction was conducted with duty cycle of 10% and 20% to identify the most effective duty cycle. …”
Get full text

Feasibility study of LNG pre � cooling system using carbon Dioxide as a refrigerant by Norshahida, Rahman

“…For the value of compressor duty using carbon dioxide is lower than the original loop, which the value is 96.7808 kW and propane duty is at 162.938 kW. …”
Get full text

Modeling of single mixed refrigerant process for offshore natural gas liquefaction by Syed Ahmad Farhan , Syed Ab Mutalib

“…As a conclusion,structural modification in case 3 is the best model when compare case 1 and case 2 because it operates in lowest compressor duty.For the future improvement,a different structure modification can be done using case 3 as a base model,for example replacing the valve with a multiphase expander to generate electricity in this LNG liquefaction process.…”
Get full text

The development of control scheme for single phase induction motor by Sumi Murni, Zakaria

“…This project is focus on the AC motor speed control by varying the duty cycle of Pulse Width Modulation (PWM) signal. …”
Get full text

Photovoltaic charge controller by Noor Juwaina Ayuni, Mohd

“…The benefit of this project is an improvement of efficiency depend on duty cycle and voltage change…”
Get full text

Analysis and simulation of z-source inverter control methods by Mohd Salfarulizaman, Kamarul Baharin

“…The Simple Boost control with independence relation between modulation index and shoot-through duty ratio is also simulated and analyzed. The selection of high modulation index and shoot-through duty ratio can reduce the inverter’s dc link voltage overshoot and increasing power delivery capacity of the inverter. …”
Get full text

Design of control signal for electrical drive system for technology demonstrator by Mohd Hasnul Mubakir, Osman

“…The advance Remote Control such as FUTABA has its own PWM signal with its own fix frequency and duty cycle. By using 555 timer, Receiver PWM Wave Generator has been made. …”
Get full text

Microcontroller based buck PID by Siti Jamilah, Mahful

“…The programmed PIC184550 will be able to automatically control the duty cycle of the system in order to apply an appropriate duty cycle to the system. …”
Get full text

Design of signal for electrical drive system for electrical drive system for technology demonstrator by Mohd Hasnul Mubakir, Osman

“…The advance Remote Control such as FUTABA has its own PWM signal with its own fix frequency and duty cycle. By using 555 timer, Receiver PWM Wave Generator has been made. …”
Get full text

Production of Biodiesel From Microalgae Using Ultrasound by Vikinesh, Mariappan

“…Nannochloropsis sp. gives a better result in 10% of duty cycle with the intensity of 10.2 watt/cm2. The power and the intensity is determined after observe the absorbance after sonication at various power and amplitude. …”
Get full text

Effect of Ultrasound on Enzymatic Extraction of Zingiber Officinale by Fatinnurhazwani, Zainal

“…The ultrasound procedure was performed by 10% and 20% duty cycle. As result indicates that by using enzymatic extraction method assisted with ultrasound, the high and good quality production of ginger oil was obtained. …”
Get full text

Modelling Of Power Converter Wpt System Based On Inductor Current Ripple by Amirul Shafiq, Khairuddin

“…To obtain higher output voltage in the Buck-WPT converter, duty cycle and coupling factor need to be in certain value. …”
Get full text

Design switch mode power supply (SMPS) using pulse width modulation (PWM) controller technique. by Mohd Shahruddin, Harun

“…So the desire output voltage can be produced by generate various duty cycle.…”
Get full text

Heat integration analysis of gas to liquid (GTL) process by Mohd Fuad, Che Nordin

“…A leading GTL technology is the Fischer Tropsch process.The objective of this work is to provide a techno-economic analysis of heat intergrated GTL flowsheet.First,a base case GTL flowsheet from published result is modeled using Aspen Hysys to determine the energy flows,performance criteria, and equipment specifications.Next,heat integration studies by Pinch Analysis are performed to address the heating and cooling utilities.After the integration,100% of heating duty requirement can be saved,and the cooling duty requirement can be saved for about 23%.Finally,an economic analysis is undertaken to determine the energy costing of the GTL flowsheet.It shows,RM171.76 MM/year and RM 0.63 MM/year can be saved from heat utility and cooling utiliy respectively. …”
Get full text

Process debottlenecking of small scale liquefied natural gas (LNG) plant by Nurul Ain, Ramli

“…The bottlenecks removal was then performed by transferring duty of this active bottleneck to an additional cooler installed. …”
Get full text