In this post, I want to share you typical LNG tank instrumentation. This post is related to my old post: rollover in LNG storage tank. As explained previously, rollover in LNG storage tank begins with stratification which is LNG layer formation due to density differences. To monitor stratification, good and necessary instrumentation should be installed thus prevents rollover. Read More
Understanding Metering and Regulating Stations and Its Part
This is the third post of city gas series. Please check the first post about how to calculate city gas requirement and the second post about city gas distribution network part 1.
In previous post, I share you one important part of city gas distribution equipment which is Metering and Regulating Stations (MRS). For review, the function of MRS is to monitor flow rate of gas and to reduce gas pressure thus it meets requirement. Gas pressure is reduced from more than 16 bar to 5-15 bar in MRS. I checked in “City Gas Network Handbook” published by Indonesian Government, maximum pressure of city gas distribution system is 7 bar, although in reality, gas operating pressure is not that high. Read More
City Gas Distribution Network (Part 1)
This is second post of city gas network series. For the first post, please check “City Gas Flowrate Requirement”.
City gas distribution is one of Indonesia national priority program which purpose is to diversify energy, to reduce energy subsidiary, to provide clean and cheap energy, and as complementary program to convert cerosene into Liquified Petroleum Gas (LPG).
The total installed city gas until now is 56,888 house connection. It will be increased year by year. For example in 2013, the government planned to installed 16,000 connection. Read More
Comparison of LNG Flat Bottom Tank and Vacuum Insulated Tank
In previous post (typical process flow diagram of small scale LNG regasification facility), I explained that LNG storage tank played important part in the facility. It is used to stored LNG for certain duration (usually in term of round trip). In small scale LNG regasification facilities, vacuum insulated tank is usually used because the capacity if small. But when the capacity is high, LNG flat bottom tank is used.
In this post I want to share you difference and comparison between LNG flat bottom tank and vacuum insulated tank and give some advice what to choose.
Table below shows comparison of flat bottom storage tank and vacuum insulated tank. Read More
City Gas Flow Rate Calculation
Currently I am working on city gas network project in Mojokerto. This is my first experience. You can see in my curriculum vitae what I actually do in this project.
My job is relatively more simpler than what I did in LNG project. I need to prepare four process documents which are:
- City gas flow rate calculation
- Line sizing
- Hydraulic analysis
- Polyethylene pipe thickness calculation
Flat Bottom Storage Tank – Different Types and Its Features
In my third LNG project, I had a chance to meet two different LNG storage tank vendors. One vendor produce vacuum insulated storage tank (pressurized type) and the other one produce flat bottom storage tank (atmospheric type).
During the meeting I got several terms of LNG flat bottom storage tank types, such as single containment tank, double containment tank, and full containment tank. What was that?
In this post I want to share you different types of LNG flat bottom storage tank and its special features. Read More
Ten Tips How to Survive Working at Consultant Company
I’ve been working in two different consultant companies. Totally I’ve been working for almost four years in consultation world. In this post I want to share you some advice on how to survive working at consultant company. The inspiration of this post was from many difficulties I’ve faced.
#1 Working Experiences
The term consultant itself defines everything. When you work at consultant company, so you are “consultant”. You are the place where your client ask about their difficulties. You are also a right place to judge something. It is impossible to do that correctly if you are lack of experience. That is why consultant companies must be reinforced with well-experienced personnel, probably the one with more than ten years working experience in special fields (for example in LNG field, geothermal field, and so on). How if you are fresh graduate or the one with lack experience? I think you should learn from experience ones. It will be better for consultant company to invest in experienced personnel. Read More
Job Description of Project Engineer – My Real Experience (Part 2)
Please check first part of this post to explore my experience as project engineer 😉
I remembered the night when me and my colleagues went to Senoro 5 to show mechanical completion dossiers to our project manager. We brought three dossiers to show him the example. We thought he will be a little happy to check the dossiers and conclude that we are close to ready for gas in. Unfortunately, he didn’t.
At that time, I realized something more important that dossiers. He wanted to see by his own eyes that we’re ready. And dossiers didn’t convince him.
Fortunately, in the end we managed to get all aspects ready for gas in. Read More
Pipe Size Selection and Several Criteria of Pipe Size
Someone in my office asked me if there is a criteria for pipe size selection, in other words, pipe sizing criteria. One basic document that every process engineer produce in the beginning of engineering stage is process design basis. In the document, pipe size criteria shall be stated clearly.
I have involved in at least two engineering projects. Those two projects have different pipe size criteria. Which one is correct? Read More
Job Description of Project Engineer – My Real Experience (Part 1)
When I was working in this company, I worked as project engineer for precommissioning activity. In the end I realized that the term precomissioning department was not suitable for us, but mechanical completion.
I want to share you some experience and what I actually did as project engineer in that project. For your information, the project was Senoro Gas Development Project. It is owned by Joint Operating Body of Pertamina & Medco EP. It is located at Senoro, Central Sulawesi.
The History Begin With… Read More