Posted Mar 29, 2011, by 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
Tags:
Chimney,
Computational Fluid Dynamics,
CFD,
HVAC,
efficiency,
FloVENT
Posted Feb 10, 2011, by 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
Tags:
Computational Fluid Dynamics,
Duct Flow,
CFD,
FloVENT,
HVAC
Posted Feb 8, 2011, by 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
Tags:
CFD,
FloEFD,
Bob Dylan,
Revolving Doors,
Royal Boon Edam,
HEC (Holland Engineerings Consultants BV),
HVAC
Posted Jan 31, 2011, by 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
Tags:
FloEFD HVAC Module,
FloVENT,
FloEFD,
HVAC
Posted Oct 29, 2010, by 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
Tags:
contaminant distribution,
FloVENT,
CFD,
HVAC,
smoking
Posted Sep 16, 2010, by 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
Tags:
Energy,
HVAC,
chill beam,
UNC at Chapel Hill
Posted Aug 10, 2010, by 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
Tags:
data center cooling,
data centre,
Data Center,
FloVENT,
HVAC,
data centre cooling,
Electronics Cooling
Posted Apr 7, 2010, by 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
Tags:
FloVENT,
HVAC,
CFD,
Thermal Insulation,
U-Value
Posted Mar 12, 2010, by 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
Tags:
HVAC,
Thermal Insulation,
FloVENT,
U-Value,
Watts
Posted Mar 2, 2010, by Robin Bornoff
Why is it that when you increase a cavity air gap size beyond ~30mm is there no subsequent detrimental affect on the overall U-Value? Why is it that the U-Value of the cavity gap nearly doubles when the air gap reduces to such as size so as to stagnate the air? Questions that come begging after observing the FloVENT simulation results discussed in the previous blog posting. Let’s find out….
When I … Read More
Tags:
Conduction,
Convection,
CFD,
U-Value,
FloVENT,
HVAC
Jim Martens
John Day
J VanDomelen
Michael Ford
Mike Jensen
Colin Walls
Tom Fitzpatrick
Patrick Carrier
Mark Laing
Travis Mikjaniec
Christopher Hallinan
Bernard Sutton