Friday, 24 June 2016

CEMS



Continuous Emission Monitoring refers to a packaged system of gas analyzers, gas sampling system, temperature, flow and opacity monitors that are integrated with a data acquisition system, that is involved in the measurement of gases, particulates and smoke (opacity) emitted from stationery source of air pollutants and to provide a continuous record of air pollution control equipment performance and to determine compliance with emission of operation limits.


The total equipment required to sample, condition, analyze and provide a permanent computer record of pollutant concentration. This includes the equipment necessary to perform the required routine calibration and audits.


To any industrial premise / facility that is required by regulation, permit, agreement or order to install, operate and maintain a CEMS for the purpose of continuously determining and reporting compliance with applicable emission limits or operating permits.


Emission standards for stationary sources are as prescribed in the Environmental Quality Act (EQA), 1974 under the Environmental Quality (Clean Air) Regulations 1978 and its subsequent revisions.








Cheers.

VR Gaming



So true haha.. Can’t wait to get my hands on oculus rift and experience a new world of virtual reality gaming






“ooh shoot.. I almost lean on a table that doesn’t exist”

Hahahah

Maybe I’ll reward myself after graduation. Cheers

App My Tnb



Did you know that TNB have launch its mobile application for Android and IOS users. The apps called my TNB.





Why does it matter? Well, for instance it is loaded with a lot of information on TNB services. It also allows you to conveniently view your monthly electricity bill through your mobile. You can easily track your electricity bills and better manage your electricity account. Any way, you can read yourself about the services being offered in the apps description.

What I am going to share is on how to get the apps running in your mobile.
First, you need to download it and install it from google play or i Tunes. The size is about 13MB. After the installation, you need to register yourself. By clicking the register field, will see this page:




Just follow the instruction. First you need to fill up your email address and then you need to click the “get a code”. A code will be sent to you’re the email you have entered. Just key in the verification code along with your username and password preference.. and Voila!. The app is ready and you will have instant information access from your electricity provider.Try it. Cheers

Friday, 17 June 2016

scada 2.0



Looking back to my previous entry, I realized that what I share was a bit technical (maybe for my classmates) although I have tried to simplify it by elaborating on the basic architecture of the system only.

So for this entry, I will try to  simplifying it even more by relating the scada system to two Hollywood films which I saw adopt the scada system.

As was previously mentioned, the Supervisory control and data acquisition (SCADA) is basically a system for remote monitoring and control. This system is being widely used in the utilities, industrial, infrastructure, and facility-based industries.

The first film that has scada system in the film environment is “The Taking of Pelham 123”. It is a 2009 American thriller film directed by Tony Scott, and starring Denzel Washington and John Travolta. The story involves armed men hijack a New York City subway train, holding the passengers hostage in return for a ransom, and turning an ordinary day's work for dispatcher Walter Garber into a face-off with the mastermind behind the crime.



Next one, Unstoppable is a 2010 American disaster thriller film directed by Tony Scott, written by Mark Bomback, and starring Denzel Washington and Chris Pine. The film, loosely based on the real-life CSX 8888 incident, tells the story of a runaway freight train, and the two men (Washington and Pine) who attempt to stop it.


So...If you have seen these two films, you may have noticed a similar scene when the managers /operators in charge in the control center, trying to make sense of the situation in each of their film by looking to the information displayed in the big screen in the room.



These two scenes are the perfect examples of real life application of scada system. By using this system, the operators in the control room can monitor the location of their train, remotely change the routing track, planned and manage the overall operation of its day to day business needs.

For better understanding of the system application, I highly suggest that you watch these movies and try to pay attention to their control room work setting. 

Cheers


Thursday, 16 June 2016

SCADA

In my first class of MIS 750, I have mentioned on the SCADA system being applied in my organization. SCADA system stands for Supervisory Control and Data Acquisition. The systems function is exactly as its name suggest, mainly for supervisory control and for data acquisition.

It is widely used in many fields: e.g. power generation, water system, oil industry, chemistry, automobile industry. Different fields need different functions, but they all have below features:

·         Graphic user interface (GUI)
·         Process mimic / model
·         Real time and historic trending
·         Alarm system
·         Data acquisition and recording
·         Data analysis
·         Report generator


The typical system architecture is shown in the Figure below:



HMI stands for Human Machine Interface. It is the input-output device through which the human operator controls the process, and which presents process data to a human operator.

Data Acquisition System (DAS) gathers information from the MTU, generates and store alerts that needs attention from the operator because it can cause impact on the system.

Master Terminal Unit (MTU) is the heart of a SCADA system and is usually located at the main monitoring center. MTU initiates communication with remote units and interfaces with the DAS and the HMI.

Remote Terminal Unit (RTU) is the communication device within the SCADA system and is located at the remote location e.g. substation. The RTU gathers data from field devices in memory until the MTU request that information. It also process orders from the SCADA like switch off a transmission line.

For my organization, the system architecture can be visualize as the figure below:





The comms is basically the MTU to communicate with RTU and at the same time interfacing with the scada. There is an additional system which is the Emergency Management System (EMS) that functions as the master for the scada while interfacing between the planning unit and the operators. The EMS will take control in time of emergency to safely operate the transmission network by dispatching standby power plant or load shedding selected areas.

So in conclusion, the adoption of scada system helps the utility company to safely and efficiently manage the operation of its assets that is widely located around the country. 

Cheers.






Assalamualaikum w.b.t


Hello readers and friends (classmates /colleagues maybe)... Welcome to my blog

Being my first entry, let me introduce myself in general and what can be expected of this blog.
Firstly, my name is Najib. Those who knows me back from school/ university days called me bijan J.  I live in Klang. Married and have 2 children; a girl and a boy. I work in a utility company, doing business development and overseas investment. 

Back to the expectation for this blog, I will try to share about information and my views on the subject of information system and/or technologies that relates to my field of work, and/or subjects that interest me. 

Before I forgot, I would like to take this opportunity to show appreciation to my MIS lecturer, Prof. Madya Dr. Norzaidi for his guidance and shared knowledge.  I Hope that more lecturers will acknowledge and apply his style of teaching and coaching for his students.


Well, my first task in developing a blog has been completed. In my next entry, I will discuss on the technologies implemented in my organization. Cheers.