New Forum for Professionals, Freelancers, Students on Manufacturing & Energy
technologist | 25 Sep, 2007, 02:44 | Cooling Towers | (1352 Reads)

Check Out my New Forum on subject topic at Chemical Professionals Forum.

Dont forget to Register as I will convert it to a paid forum later on with freelancers to exchange technology Ideas, Technical solutions etc.

Whosoever register now will be a free member always.

Also, voluntry moderators can be assigned responsibilities for respective sections. So let m eknow if U r interested in the same.


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How to measure pump performance without flowmeters?
technologist | 25 Sep, 2007, 02:37 | General | (291 Reads)
We all face a very common problem of how to measure the performance of an inefficient pump in absence of flow meters particularly in case of cooling water pumps where usually there is no flow meter.

Based on my past experience in energy audit for last several years I found that we know the pump is not upto the mark based on its physical apperance of corrosion, leakages, sound etc. but how to prove it based on data that too when it is delivering the design head when you measure discharge & suction pressures. This is very confusing.

Read the simple method to verify the performance. You only need the performance curve originally supplied by the manufacturer.

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Efficient Roof Design
technologist | 25 Sep, 2007, 02:36 | Energy | (587 Reads)

From an energy efficiency perspective, roof technology has not progressed substantially in hundreds of years, but that is changing with the use of active thermal mass components, reflective pigments and coatings, subventing, radiant barriers and other novel techniques being tested by a team led by Bill Miller and Jan Kosny of ORNL's Building Envelopes group. Their prototype roof and attic system works by reducing attic temperatures by about 22 degrees Fahrenheit during a typical summer afternoon and decreasing the amount of heat that gets transferred through the attic floor to the living space.

Read More...


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God & Science
technologist | 25 Sep, 2007, 02:34 | General | (184 Reads)

This story was sent to me by a friend & thought I should share it with you all.


An atheist professor of philosophy speaks to his class on the problem science has with God, The Almighty. He asks one of his new students to stand and.....
Prof: So you believe in God?
Student: Absolutely, sir.
Prof: Is God good?
Student: Sure.
Prof: Is God all-powerful?
Student: Yes.
Prof: My brother died of cancer even though he prayed to God to heal him. Most of us would attempt to help others who are ill. But God didn't. How is this God good then? Hmm?
(Student is silent.)

Read More....


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Booster Pumps
technologist | 25 Sep, 2007, 02:33 | Technology | (297 Reads)

Mechanical vacuum boosters are dry pumps that meet most of the ideal vacuum pump requirements. They work on positive displacement principle and are used to boost the performance of water ring / oil ring / rotating vane / piston pumps and steam or water ejectors. They are used in combination with any one of the mentioned pumps, to overcome their limitations. Vacuum boosters pumps offer very desirable characteristics, which make them the most cost effective and power efficient option.

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Fouling Factors for Cooling Water Service
technologist | 25 Sep, 2007, 02:29 | General | (269 Reads)

Just found a list of compiled factors, so I wish to share it with all of you at one place. I will post others also on this as Update. Generally we find U values but not fouling factors, so it may be useful for many.

Read it here....


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