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Archive for January, 2008

Electricity free - Temperature control

Posted on January 31, 2008

Monitoring and controlling temperature is very important in a lot of process applications.  During the storage and transportation, knowing with confidence that the proper temperatures were maintained creates an additional level of importance.

 

Burns Engineering gets excited about these challenges, and we're obviously not the only ones...

 

Aaron Thermal, is a start-up company that is doing some very interesting work in the area of Phase Change materials.  They apply this technological concept to provide temperature control without electricity.  I thought this was a very interesting idea.  Designing, selecting and customizing phase change materials to achieve temperature control for various temperature ranges, used for transportation and storage and saves energy.  The materials are also non-toxic and non-polluting.  Seems like a win for the environment on several fronts.

 

I don't think the idea is going to replace the use of freezer and cryogenic RTD's during transportation and storage in the Biopharma or Food & Beverage industries as sometimes a record of the actual temperature is necessary for safety and verification.  BUT... these phase change materials could help reduce energy costs and simplify the control process.

 

I just thought it was interesting, and the Aaron Thermal site includes links to interesting info regarding best storage temps.  Check out the links for Wine and Fruit and Veggies...

 

Have you seen temperature related technologies that are unique and interesting?  Click on COMMENT above and share your discoveries...

 

Chuck´┐Ż

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In the frozen tundra like climate that we are having up here in Minnesota (AGAIN!), Burns Engineering has created a multi-point PRT to monitor the frost line. Click here to see the application note on the product.

 

mntemp1-29-08.png

 

Today as the temperature dips into the -20C range, this sensor at 10 feet in length may not be long enough?!? We could build a longer PRT, but is that necessary?

 

In Minnesota, according to the local library, the Frost line is generally in the 4 to 5 feet range, so 10 feet should be good. Although a quick review of the climate extremes in MN and for the entire US indicates there are places that have been as cold as -80F! (~~-62C!)

 

Brrrrrr... It's not cryogenic, but it's feels like it!

 

.

 

Maybe we'll start drawing up the design for a 20-foot Multi-point PRT!

 

How cold has it been in your neck of the woods?

 

Chuck

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3-A and BPE - BE in conversation?

Posted on January 16, 2008

ASME-BPE (BioProcess Equipment) committees meet Jan. 21 - 24 in beautiful San Juan, Puerto Rico.

 

The 3A organization, known as 3-A Sanitary Standards Inc., meets in May of each year.

 

These organizations are quite different, yet use much the same language to describe their objectives.

 

The question is:

 

What relationship between the organizations would best serve the industries?

 

It seems that both organizations are concerned about providing guidelines in the areas of sterility, sanitary, clean-ability, hygienic equipment, product safety and cross-product burden.   A review of the topics of interest from the 3A , 2007 Annul Meeting, indicates a few examples of the language and topics that are of interest to both BPE and 3A.

 

3A includes pharmaceutical products in the  3A mission statement and BPE addresses personal care products within it's mission, indicating broad and holistic areas of concern.

 

Burns Engineering designs Sanitary products to meet the guidelines of both organizations.  The Burns' Sanitary RTDs are designed to meet the 3A-74 specification for use in the Food and Beverage industry for milk and dairy processes.  The Sanitary products also incorporate the materials, surface finishes, sanitary flange designs as guided by the BPE-2005 standard.  The Burns Engineering Sanitary Wells  and Non-Intrusive RTDs, incorporate the same design criteria for use in both industries as well as the CIP and SIP processes, insuring a drainable design and NO flow restrictions.

 

The design expectations are similar and in many ways overlapping, such that the Burns' Sanitary RTDs are applicable across the industries of Biopharma, Food and Beverage, and Semiconductor.

 

If the product design is able to cross industries, can the conversation cross industries?

 

What do you think?  Should there be closer collaboration?

 

Click the comment button above and tell us what you think!

 

Chuck

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