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Mechanical Analysis Blog

Posts tagged with 'HVAC'

28 Oct, 2011

Ho, Ho, Ho! Facebook moves to Lapland

Posted by Robin Bornoff

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, 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, 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, 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, HVAC, underfloor heating

26 May, 2011

This Old CFD House: Part IV

Posted by John Wilson

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

crawlspace, CFD, HVAC, FloVENT, humidity

19 May, 2011

This Old CFD House: Part III

Posted by John Wilson

John Wilson Welcome to Part III of a multi-part series, where in this installment Travis takes a “virtual” look at his crawlspace. For this next installment of “this old CFD house”, and really the entire reason I started this blog series, I’d like to take a look in my crawlspace. Now, from what I understand, Feng Shui says running water is good for wealth. Well the opposite is true when you have a … Read More

crawlspace, CFD, HVAC, FloVENT, humidity

29 Mar, 2011

This Old CFD House: Part II

Posted by John Wilson

John Wilson Welcome to Part II of a multi-part series where, in this installment, Travis takes a look at a typical chimney. For this next installment of “this old CFD house”, I’d like to investigate another gremlin that was discovered during the inspection period of the house we are purchasing. This one related to the chimney. The current damper is rusted and hard to operate. According to the chimney expert we … Read More

Chimney, CFD, HVAC, efficiency, FloVENT

10 Feb, 2011

This Old CFD House: Part I

Posted by John Wilson

John Wilson I’d like to introduce my first guest blogger, Travis Mikjaniec. Travis is a colleague of mine who is entering the world of home ownership. Travis has questioned some of the recommendations from the various home inspectors. In a multi-part series Travis will debunk or otherwise quantify the value of the recommendations. Starting the process of buying a house is a daunting task.  Beyond all the … Read More

Duct Flow, CFD, FloVENT, HVAC

8 Feb, 2011

Boris Marovic Hi again, I recently came across an interesting HVAC application of FloEFD, our CAD-embedded CFD package for concurrent product design, from one of our users in the Netherlands, Royal Boon Edam. I think it just shows how ubiquitous CFD has become in the world today when a manufacturer that was founded in 1873 as a carpentry workshop and has now grown into an international leader in the design and development … Read More

CFD, Bob Dylan, Revolving Doors, Royal Boon Edam, HEC (Holland Engineerings Consultants BV), HVAC

31 Jan, 2011

Robin Bornoff The recently released FloEFD HVAC Module brings a raft of features specifically tailored to enable FloEFD to be used for built environment simulations. FloEFD  has an unrivalled pedigree in the automating of advance CFD (computational fluid dynamics) techniques and capabilities, allowing the user to focus on application and not numerics. This democratisation of CFD brings the ability to simulate the … Read More

FloEFD HVAC Module, FloVENT, HVAC

29 Oct, 2010

On the Vilification of Smokers

Posted by Robin Bornoff

Robin Bornoff On a recent trip to Japan I was surprised to find out how much their attitudes to smoking had changed. Cigarette prices have increased by over 30% in the last year and many public places now have smoking bans in force. For a country that has been renowned for its voracious attitude to smoking such a change in such a conservative culture is a bit of a shock. But as they say nowadays, “smoking is … Read More

contaminant distribution, FloVENT, CFD, HVAC, smoking

16 Sep, 2010

Cutting energy use by 20%

Posted by Nazita Saye

Nazita Saye A couple of months ago I visited my colleagues in Budapest. During my stay, I was invited to take a tour of a local university where we visited an engineering studies building.  We ended up in a lab to see some equipment. As soon as I walked in, I got distracted because of the temperature in the lab. Why? Because we were visiting Budapest in the middle of a heat wave (it was about 38° celcius, 100° … Read More

Energy, HVAC, chill beam, UNC at Chapel Hill

10 Aug, 2010

How many frogs does a horse have?

Posted by Robin Bornoff

Robin Bornoff The internet is big. It’s not sentient yet, though Robert Swayer has written a compelling story of how it might ‘Wake‘. In fact it’s far from intelligent at all. Banal comments about “how we ever managed without it” will age so quickly that future historians will assume a typo, more intelligence than we currently have and take the phrase to have been “how did we ever manage with it”. It looks like … Read More

data center cooling, data centre, Data Center, FloVENT, HVAC, data centre cooling

7 Apr, 2010

Robin Bornoff Larry Grayson’s famous high camp catchphrase would be well heeded by those wanting to ensure good thermal insulation. You can make it difficult for heat to leave a room, thus maintain a warm room temperature, by constructing walls and floors of sandwiched layers of various materials, restricting heat transfer to conduction and (in cavities) radiation methods only. Open a door however and cold air will … Read More

FloVENT, HVAC, CFD, Thermal Insulation, U-Value

12 Mar, 2010

Robin Bornoff Conduction, the transfer of heat through a solid object. Convection, the transfer of heat in moving air/fluid. Radiation, the transfer of heat from one solid surface to cooler solid surface in ‘line of sight’. The 3 modes of heat transfer are your enemy when it comes to thermal insulation of built environments. Heat is as sly as a fox when it comes to squirming its way out of a space to the cool outside. … Read More

HVAC, Thermal Insulation, FloVENT, U-Value, Watts

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