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Ankur's_Chemical_Engg_Blog



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Hyperfocal Distance Calculator

Posted by ankur2061 , in Just for Fun 07 January 2014 - - - - - - · 2,491 views
photography, hyperfocal, distance and 2 more...
Dear All,
 
This blog entry is not related to chemical engineering but it certainly is related to the science of optics and should provide interesting reading for those chemical engineers who happen to be photography enthusiasts and want to know some intricacies related to the science of photography
 
I have always loved photography right from t...


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Time Dependent Gas Release Through A Hole From A Pressurized Container

Posted by ankur2061 , in Technical 23 December 2013 - - - - - - · 7,537 views
gas, release, hole, flow and 2 more...
Time Dependent Gas Release Through A Hole From A Pressurized Container Dear All,
 
One of the very important books related to process safety is popularly known as the "Yellow Book" published from the Netherlands and having the full title as:
 
"Methods for the calculation of physical effects - due to releases of hazardous materials (liquids and gases)" - 'Yellow Book' - CPR14E
 
The best part of this book is t...


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Frequently Asked Questions (Faq) About Liquefied Natural Gas (Lng)

Posted by ankur2061 , in Technical 03 December 2013 - * * * * - · 6,919 views
question, lng, liquefied, natural and 1 more...
Frequently Asked Questions (Faq) About Liquefied Natural Gas (Lng) Dear All,
 
LNG is a subject of great interest these days considering that it has become a primary source of energy for many countries deficient in fossil fuel based energy resources. It is also of interest because it is among the cleanest of all fossil fuel based energy resources when compared with other fossil fuel energy sources such as coal and c...


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Pressure Drop Of Pseudo-Plastic Fluids In Pipes

Posted by ankur2061 , in Technical 14 November 2013 - * * * * * · 7,059 views
pressure, drop, pseudo-plastic and 2 more...
Pressure Drop Of Pseudo-Plastic Fluids In Pipes Dear All,
 
Pseudo-plastic fluids are a type of non-newtonian fluids and account for a majority of the non-newtonian fluids commonly found in the chemical process industry and specifically in the food processing industry.
 
Today's blog entry provides a methodology to calculate the pressure drop of a pseudo-plastic fluid in a pipe. An example pr...


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Branded Clothing And Accessories Versus Engineering Books & Journals

Posted by ankur2061 , in For Students and Young Engineers 01 November 2013 - * * * * * · 5,991 views

Dear All,
 
The title of my blog entry may sound quite strange and incomprehensible to many. However strange it may sound, there is a funny and also quite a sad fact about it which I am going to describe in the next few paragraphs.
 
I have a few excel spreadsheets which are available by paying a very nominal amount of money posted on the online...


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The Flip Side Of Engineering Standards And Practices

Posted by ankur2061 , in Management 07 October 2013 - * * * * * · 6,852 views
engineering, standards, practices
The Flip Side Of Engineering Standards And Practices Dear All,
 
I like to keep myself abreast of the latest engineering standards and practices from international organizations (API / ISO) and from engineering / operating companies. The best thing about them is I don't have to overload my memory trying to remember established engineering and design practices which are generally well...


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Design Guide For Sizing Vertical Oil Treaters

Posted by ankur2061 , in Technical 23 September 2013 - - - - - - · 7,078 views
design, vertical, oil, treaters and 1 more...
Design Guide For Sizing Vertical Oil Treaters Today's blog entry provides some guidelines for sizing of vertical oil treaters. The procedures described in this blog entry do not give the overall dimensions of the treater, which may include inlet gas separation and free-water knockout sections, dependent on the upstream separation vessels.  However, they do provide a method for specifying heat i...


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Power Consumption Of Vacuum Pumps

Posted by ankur2061 , in Technical 01 September 2013 - * * * * * · 14,145 views
power, consumption, vacuum, pumps
Power Consumption Of Vacuum Pumps I am back on my blog after a wonderful holiday to Canada. I had a lot of fun staying in Vancouver and found BC to be a beautiful place.
 
Today's blog entry deals with quick but reliable estimate of the power consumption of vacuum pumps used in the chemical process industry. Some equations are presented below for the benefit of the readers:
 
Li...


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An Introduction To The Concept Of Double Jeopardy In Process Safety

Posted by ankur2061 , in Technical 05 August 2013 - * * * * * · 16,949 views
process, safety, double, jeopardy
An Introduction To The Concept Of Double Jeopardy In Process Safety Most Process and / or Safety engineers have to perform an analysis for the scenario or case related to the application of a safety relief device during their engineering career. In the chemical process industry, majority of the cases or scenarios for safety relief device are well defined based on experience gathered over the years for operating various ty...


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Guidelines For Fuel Gas Supply To Gas Turbines

Posted by ankur2061 , in Technical 28 July 2013 - - - - - - · 8,097 views
fuel, gas, supply, tubrines and 1 more...
Guidelines For Fuel Gas Supply To Gas Turbines Gas turbines (GT) are expensive and a major investment in any oil & gas, refinery, petrochemical or power generation unit. Any breakdown in gas turbines can lead to plant / unit production deferment or loss of power to the power grid if gas turbines are used for electricity genaeration, and spending large sums of money in repairs and overhauling....


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How To Write A Plant Operating Manual

Posted by ankur2061 , in Management 13 July 2013 - * * * * * · 13,916 views
how, write, plant, operating and 1 more...
How To Write A Plant Operating Manual Most Process Engineers, specially the senior process engineers are required to write a plant operating manual for a new greenfield project during their career. Mind you, this is quite different from updating an existing operating manual for a brownfield project where the scope of the project is modification and debottlenecking. Updation of an existing ope...


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Design Guidelines For Tank Truck Loading Terminals

Posted by ankur2061 , in Technical 25 June 2013 - * * * * * · 14,615 views
design, guidelines, guide, tank and 4 more...
Design Guidelines For Tank Truck Loading Terminals I have been away for 3 weeks from my blog. Well, was busy on the workfront as well as on personal matters. Travelled home to India to be with the family. Spent some brief but quality time with the family who were keen to light one more candle on the cake.
 
Today's blog entry deals with design guidelines for tank tr...


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Natural Gas Pipeline Blowdown Time Calculation

Posted by ankur2061 , in Technical 02 June 2013 - * * * * * · 25,876 views
natural, gas, pipeline, blow and 5 more...
Natural Gas Pipeline Blowdown Time Calculation I have posted a lot of excel spreadsheets on the Cheresources community related to process engineering calculations. I also have posted blog entries where I have outlined the steps along with equations to build an excel spreadsheet for various calculations.
 
The idea of posting blog entries with equations and calculation steps is to encourage young...


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Perforated Pipe Distributor Sizing Calculations

Posted by ankur2061 , in Technical 16 May 2013 - * * * * * · 46,301 views
perforated, pipe, distributor and 4 more...
Perforated Pipe Distributor Sizing Calculations Perforated Pipe Distributors have been discussed many times on “Cheresources”. How to design a perforated pipe distributor also known as a sparger has been a frequent question on the forum. Some general replies without providing in-depth methodology of sizing a distributor can be seen in the queries raised.

Perry’s Handbook (8th  Editio...


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Celebrities Outside The Engineering And Science Field With Engineering And Science Degrees

Posted by ankur2061 , in Humor 04 May 2013 - - - - - - · 7,825 views
celebrity, engineers
Celebrities Outside The Engineering And Science Field With Engineering And Science Degrees For a change this is not a technical entry. It is more so for the sake of general knowledge and fun. There are quite a few celebrities who graduated as engineers but never chose to work in the engineering field. They chose the cinematic arts, music, politics and other diverse fields to excel and make a name for themself. Since this is a chemical engineeri...


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Theoretical Compressor Discharge Temperature Equations By Gpsa 13Th Edition

Posted by ankur2061 , in Technical 26 April 2013 - * * * * * · 29,930 views
compressor, discharge and 3 more...
Theoretical Compressor Discharge Temperature Equations By Gpsa 13Th Edition I had mentioned in one of my earlier blog entries that the new GPSA Engineering Databook 13th Edition is now available and there have been many changes in it from the previous edition. Refer the link:
 
http://www.cheresour...ition-si-units/
 
Compressors have been a focal point of...


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Heat Capacity Ratio (κ) Compilation From Hysys At Real Conditions

Posted by ankur2061 , in Technical 08 April 2013 - - - - - - · 13,869 views
heat, capacity, ratio and 2 more...
Heat Capacity Ratio (κ) Compilation From Hysys At Real Conditions Heat Capacity Ratio or Specific Heat Ratio has been discussed in many posts on "Cheresources". The heat capacity ratio is used for head calculations of compressors and for orifice sizing calculations for gas flow through control valves, relief valves and restriction orifices. Thus the importance of accurate value of the heat capacity ratio cannot be overe...


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Material Storage Considerations As Per Gpsa Engineering Databook

Posted by ankur2061 , in Technical 21 March 2013 - - - - - - · 4,989 views
gpsa, material, storage and 2 more...
Material Storage Considerations As Per Gpsa Engineering Databook A lot of queries on the forum relate to storage of materials like crude oil, gas condensate, natural gas liquids, butanes, propanes, natural gasoline, petrochemicals (butadiene), natural gas, LNG. A variety of answers are provided to these queries with many quoting from outdated books and standards (some quotes relate to books from the 50s). I h...


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Calculating Physical Properties Of Slurries

Posted by ankur2061 , in Technical 15 March 2013 - * * * * * · 46,360 views

Calculating Physical Properties Of Slurries Today's blog entry addresses how to calculate the physical properties of slurries. Before we go into the details let us understand the basic concept of a slurry.
 
A slurry consists of solid particles suspended in a liquid. A slurry pipeline is used to transport slurries from the source such as a coal mine to its destination such as a coal power plan...


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Firefighting Foam Demand Calculations

Posted by ankur2061 , in Technical 21 February 2013 - * * * * * · 25,967 views
fire, fighting, foam, demand and 1 more...
Firefighting Foam Demand Calculations I had mentioned in one of my earlier blog entries that off-late I have developed an interest in learning about HSE and in particular about Loss Prevention. The blog entry subject was "Fixed Water Spray Demand Calculations for Fire Protection of Tanks / Vessels" and its link can be found at:  http://www.cheresour...4/entry-283-...






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