Community News:

New Blog Entry - Revisiting the Reputation System - http://www.cheresour...utation-system/

New Download Available - Crane Fluid Flow Examples in MS Excel - http://www.cheresour...es-in-ms-excel/

Blogs

Compressor Surge And Anti-Surge Control

Posted by ankur2061 in Ankur's_Chemical_Engg_Blog, in Technical 21 February 2012 -

· 930 views

compressor, surge, control

Compressor surge has been discussed often on the forum with many posts dedicated to the subject. Despite all these discussions there was a serious lack of the basic scheme of anti-surge control. Today's blog entry tries to remedy the situation. I am presenting an excel attachment related to basic anti-surge control which should help all those who have...

Read Full Entry →

0 Comments

Featured

Chexpress - February 21, 2012

Posted by ChristaS in ChExpress Blog, in ChExpress Blog 21 February 2012 -

· 484 views

monsanto, dow chemical

North America

Disclosure fight

Monsanto Co. is fighting with Idaho’s utilities, arguing they should be forced to disclose more information about costs of future power plants or transmission lines so customers will be better armed to oppose unnecessary...

Read Full Entry →

0 Comments

Featured

Revisiting The Reputation System

Posted by Chris Haslego in Community Admin Blog, in Community Updates 31 January 2012 -

· 876 views

reputation, system, likes

A while back, I posted a blog entry on this subject here:

http://www.cheresour...and-reputation/

We've had some time to live in the environment and I collected much feedback from the community. I wanted to raise this issue again to see how you think the...

Read Full Entry →

4 Comments

Featured

Dust Hazard Assessment

Posted by Mark Roote in Mark Roote's Blog, in volume, length to diameter, dust accumulation 07 October 2011 -

· 151 views

cyclone, baghouse, nfpa, osha

Anyone working in a facility that handles dust (which is essentially every facility) is trying to get ready for the crackdown from OSHA and NFPA. While OSHA and NFPA are still trying to figure out the best way to implement new standards, what those standards will be and how to enforce the standards, NFPA and OSHA have come out with some temporary...

Read Full Entry →

0 Comments

Featured

A Different View Of Harrell's Colebrook-White Solution

Posted by Harrell in Harrell's Blog, in Technical 01 October 2011 -

· 168 views

solution, white, view, different

For some reason, most people still do not understand how my Colebrook-White solution works.

It has been tested, and re-tested over and over, and always gets the right answers if you don't make
a weird error.

This may help those who are questioning "Why does it work?"

In the Wikipedia you can read about the Lambert W function. Here's a...

Read Full Entry →

0 Comments

Some Utility Consumption Estimates

Posted by ankur2061 in Ankur's_Chemical_Engg_Blog, 14 February 2012 -

· 794 views

utility, consumption, estimates

As part of preparing a process discipline manual for one of my previous organizations, one section that I had prepared was "Guidelines for Preparation of Utility Summary". This document besides containing an excel template for utility summary also had some guidelines for determining the consumption of utilities such as instrument air, cooling...

Read Full Entry →

7 Comments

Chexpress - February 7, 2012

Posted by ChristaS in ChExpress Blog, 07 February 2012 -

· 830 views

poet, royal dsm, caterpillar

North America

Ethanol venture

POET LLC and Royal DSM hope to start production on their $250 million cellulosic ethanol project in the second half of 2013. Initial production is estimated to be 20 million gallons. The investment will be focused on...

Read Full Entry →

0 Comments

Our Transition Continues: Technical Q & A Database And Che Links

Posted by Chris Haslego in Community Admin Blog, 07 January 2012 -

· 770 views

transition, technical, questions

I've completed transitioning a couple of legacy databases over to our new system.

The technical question and answer database has been ported as well as Dr. Bernhard Spang's ChE Links database. Links to these resources will reside under the "FAQ" menu item and you can find them...

Read Full Entry →

4 Comments

Existing Equipment Strength Verification

Posted by Mark Roote in Mark Roote's Blog, 07 October 2011 -

· 232 views

steel plate, baghouse, map

Those of you that have used the spreadsheets created by "psafety" (MAP package 1, MAP package 2) may have run into some...

Read Full Entry →

0 Comments

Harrell's "funnel" To The Colebook-White Solution.

Posted by Harrell in Harrell's Blog, 27 September 2011 -

· 84 views

colebrook, white, solution

This is a PDF file with some tables and plots, to show visually how my method works. I call it a funnel, because the procedure quickly guides to maximum accuracy. You will see that after step 2, the accuracy will be amazing. I already knew the solution to the Re and Rr would give 1/sqrt(f) about 4, so I plotted initial guesses of from -4 (that is a...

Read Full Entry →

0 Comments

Studying Chemical Engineering In Malaysia

Posted by rowanlim in Viewpoint, 01 November 2010 -

· 573 views

study, malaysia, chemical

I wrote this entry thinking about Malaysian students coming to the end of their high school life, 17 yr old youngsters who thought "Hey chemical engineering sounds like a good field, but how do I go about it in Malaysia?" This was the question I asked myself 5 yrs ago & I hope to present my view as unbiased as possible & maybe a young...

Read Full Entry →

4 Comments

Screw Feeder Auger Shafts

Posted by LRS in Lifetime-Reliability Blog, 09 August 2010 -

· 205 views

screw, break, shaft, feeder

Analysis of a broken screw feeder shaft on a granular Copper Sulphate Bagging Hopper Feed Screw

Are your screw feeder and trough screw conveyor auger shafts snapping in half? If you have rotating shafts breaking at the centre of the span then you quite likely have a metal...

Read Full Entry →

2 Comments

32 Total Blogs
129 Total Entries
322 Total Comments
engineer Blog Latest Blog
pallavikhatri Latest Blogger

1 user(s) are online (in the past 15 minutes)

0 members, 1 guests, 0 anonymous users

Community News:

Blogs

Recent Entries

1 user(s) are online (in the past 15 minutes)