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Mentor Blogs

Posts tagged with 'HVAC'

17 Dec, 2012

Travis Mikjaniec Hello Everybody   Previously, I co-authored a semitherm paper on the use of our HVAC CFD tool, FloVENT, on the design of a Mentor Graphics data center.  Recently I have seen this topic republished in the data center journal with the title “EDA Vendor takes its Own Advice on Data Center Design”.  I find this topic interesting, so I thought I’d blog about this and break from my typical … Read More

Raised Floor, Rack, Semitherm, CFD, Computational Fluid Dynamics, Cabinet, HVAC, Mentor Graphics, Data Center, FloVENT

16 Aug, 2012

Robin Bornoff Effective use of a Computational Fluid Dynamics (CFD) simulation tool requires at least a working knowledge of fluid dynamics itself. Tools alone don’t make for a good engineer. When interviewing for jobs within the Mechanical Analysis Division (and way back into Flomerics days too) a common question posed to tease out such an understanding is to describe the air flow patterns in and around a … Read More

FloVENT, HVAC, CFD

9 Aug, 2012

Robin Bornoff One thing the Mechanical Analysis Division is not guilty of is vendor hubris. Despite the passion we have about our CFD based simulation solutions we know our place, especially in terms of where best to apply our solutions throughout the design process. CFD is a very powerful tool to predict 3D heat air flow and heat transfer but it certainly isn’t the only approach. As is common in both electronics … Read More

FloVENT, HVAC, Electronics Cooling, thermal comfort, U-Value

31 Jul, 2012

Robin Bornoff Conventional wisdom has it that the best place to put a radiator in a room is under the window. However, there’s nothing conventional about wisdom and one should be obliged to question and verify those facts that we take for granted. CFD and its ability to predict air flow and heat transfer offers an unrivalled efficient method to study such applications. Using the concept of PPD (percentage people … Read More

FloVENT, HVAC, CFD, radiator, thermal comfort

26 Jul, 2012

Robin Bornoff Sometime between 40 and 100 thousand years ago humans started to wear clothes, an estimate as accurate as you’d expect for something that wasn’t documented at the time. Earliest estimate of  humans documenting language are a mere 5000 years ago. One can only assume that it wasn’t modesty or fashion that drove the adoption of clothing, but comfort. Much of what we still do today, frequently … Read More

thermal comfort, Fanger, FloVENT, CFD, PPD, radiator, HVAC, PMV

12 Jul, 2012

Robin Bornoff With the gulf stream having shifted south and now flowing happily somewhere high over Paris, the summer weather in the UK has been ‘unseasonably’ (literally) wet and miserable. People’s heating has been thermostatically popping back on all over the country which for July is unheard of. So with this as the background and in the context of a stagnating world economy, ever continuing … Read More

HVAC, radiator, FloVENT, thermal comfort

30 Apr, 2012

John Day One of the more significant obstacles to automotive start-stop systems is how to keep the car comfy with the engine off. Saving fuel is great, but not if the infotainment system, HVAC et al were to shut down at every red light. At the SAE World Congress in Detroit last week, Delphi Automotive introduced a Phase Change Material (PCM) Evaporator that it said will keep start/stop vehicle cabins cooler … Read More

phase change material evaporator, hybrid vehicles CO2 emissions, SAE World Congress, Delphi automotive, Delphi Thermal Systems, Delphi, start-stop systems, heat pump air conditioner, HVAC, exhaust gas heat exchanger

30 Apr, 2012

Nazita Saye A virtual version of one of the MGC data center representing one of the configurations tested. Image courtesy of Mentor Graphics. Over the weekend I realized I have become English. No, I haven’t picked up the accent. Nor do I eat Marmite. Actually eating Marmite can be relegated to one of those things I’d never do. Never, ever. So why have I become English? I tend to discuss the weather and temperature … Read More

FloVENT, HVAC, CFD, Optimize

17 Apr, 2012

Robin Bornoff In 1989 Flomerics was the first organisation to provide application specific CFD based simulation software where all pre and post-processing capabilities were contained within a single WIMP based graphical user interface. That pioneering period involved missionary sales to add simulation to the arsenal of the design engineer, enabling virtual prototyping to be used as a precursor to physical build and … Read More

FloVENT, Electronics Cooling, HVAC, XML

4 Apr, 2012

Robin Bornoff The UK government has a policy for all year 10 or year 11 students to undertake a week’s work experience. Last week we welcomed a 15 year old student to the Mentor office where the FloTHERM and FloVENT software development is done. The student was tasked with simulating the air flow and temperature distribution in the office space using FloVENT. Using our own software to model our own offices … Read More

Electronics Cooling, FloVENT, CFD, HVAC, thermal comfort

28 Oct, 2011

Robin Bornoff What do you call someone who doesn’t believe in Father Christmas? A rebel without a Claus. Right, that’s that out of the way. This week Facebook announced that it plans to build a 300,000 ft^2 data center in Lulea, Sweden. The Lulea business agency who helped attract Facebook to their city are dutifully excited as should Facebook be as they look set to capitalise on 10 months each year of … Read More

data center cooling, data centre, Data Center, HVAC, PUE, Electronics Cooling, FloVENT

18 Oct, 2011

Robin Bornoff It would only have cost me an extra £170, a small extra compared to the cost of the rest of the build, but I decided against laying thermal insulation boards directly under the underfloor electric heating mats. Surely better to leak some of the heat down to heat the 100mm thick concrete screed which would maintain its heat through those cold winter weeks, giving thermal support to the heating mats in … Read More

FloVENT, Electronics Cooling, HVAC, underfloor heating

19 Aug, 2011

Robin Bornoff

3D simulation can provide a detailed prediction of temperature and heat flux values at 10s of 1000s of points in a 3D model, experimental methods are somewhat limited in terms of the wealth of data they are capable of providing. But hey, this isn’t going to degrade into a pitched battle between simulators and experimentalists, nowadays good engineers (should) do both. “No one believes simulation

Read More

HVAC, Electronics Cooling, underfloor heating, FloVENT

11 Aug, 2011

Robin Bornoff It’s been over two years since the foundations went in for the extension we’re building on our house. In that time I’ve come to respect and somewhat rely on glib phrases such as “Good things come to those who wait” and “Patience is a virtue”. I told my better half we’d be moved in by Christmas, I didn’t say which one though. In this blog series of … Read More

FloVENT, Electronics Cooling, HVAC, underfloor heating

26 May, 2011

John Wilson Welcome to Part IV of a multi-part series, where in this installment Travis continues the “virtual” look at his crawlspace. In the previous installment of “this old CFD house”, we started to peel back the veil on my crawlspace and its moisture issue.  I analyzed the problem as it is, and we made some enlightening findings.  First, really the only way air is getting into the crawlspace is … Read More

Computational Fluid Dynamics, crawlspace, CFD, HVAC, FloVENT, humidity

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