Considering the sources of inlet air to ensure effective ventilation in your factory

Posted by Paul Langford on 01/11/16 12:00

Consider the sources of inlet air to ensure that the ventilation scheme in your factory will work effectively

Whether your factory is relatively airtight or not, you have to consider the fact that nature doesn’t like a vacuum. If you try to extract air from an enclosed space and no air comes in to replace what you are trying to extract, nothing will move. So it’s not enough to install a ventilation system; you also need a path for air inlet. This blog post demonstrates that this needs careful design.

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Topics: Productivity, Factory Survey, Natural ventilation, CFD

When is natural ventilation the right solution for power plants?

Posted by Paul Langford on 16/08/16 12:00

The quick answer is: in most cases. Power plants generate large amounts of internal heat and tend to be in tall buildings, which present ideal conditions for natural ventilation to work at its most efficient.

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Topics: Natural ventilation, CFD, Energy saving, Climate Control, Industrial ventilation, Power Plants

Consider the ancillaries when specifying weather louvres

Posted by Paul Compton on 03/05/16 12:00

When specifying weather louvres, it is important to consider an often neglected part of the louvre specification: the ancillaries. I have previously written about the key considerations when specifying louvres, which guides you through some important areas when specifying louvre. However, once these requirements have been met, you must also consider the following:

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Topics: Natural ventilation, Louvre

Why are actuated windows a bad idea for smoke control systems?

Posted by Conor Logan on 26/04/16 12:00

You may think that fitting an actuator on a window instead of using a smoke ventilator will make a cost effective solution for smoke and natural ventilation, but unfortunately it is not that simple.

Here are some of the ways in which a window/actuator combination can be a poor substitute for a smoke ventilator:

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Topics: Natural ventilation, Smoke ventilation

How to select modulating controls when specifying glass louvred ventilators

Posted by Graeme Clark on 22/03/16 12:00

Following our recent article on the “Top three considerations when specifying glass louvred ventilators” we have been inundated with questions about modulating controls. Clearly this is a topic that resonates with many in the industry, and in this article we aim to provide some guidance on how to modulate louvred window ventilators.

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Topics: Natural ventilation, Smoke ventilation, Controls, Louvre

The top three considerations when specifying glass louvred ventilators

Posted by Graeme Clark on 08/03/16 12:00

Glass louvred ventilators, or louvred window ventilators as they are commonly known, are becoming increasingly popular for use in natural and smoke ventilation systems. There are several suppliers on the market, offering products that vary widely in terms of performance and controls. How can you make sure you will get exactly what you need when specifying or purchasing one of these ventilators?

There are three critical considerations you should make when preparing to specify a glass louvred ventilator:

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Topics: Natural ventilation, Regulations, Smoke ventilation, Louvre

Ventilation of atria - naturally!

Posted by Graeme Clark on 30/06/15 11:30

Ventilation is needed in atria for heat dissipation, to manage carbon dioxide and body odour levels, as well as for smoke clearance or smoke control. What better way to provide this than with a dual purpose day to day and smoke ventilation scheme?

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Topics: Natural ventilation, Smoke ventilation, Aerodynamic Performance

Are you sure your natural ventilator really is energy efficient?

Posted by Paul Compton on 24/02/15 11:30

Compared to mechanical ventilators, natural ventilators consume no energy in use and their carbon footprint is negligible. But how much energy is lost through a natural ventilator through conduction and air leakage? If you are specifying an energy efficient ventilator, what do you focus on – ventilator U value or air leakage?

The simple answer is that both are important and need to be considered together.

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Topics: Natural ventilation, U Value, Air Leakage

Smoke and natural ventilation systems: why one sub-contractor is best

Posted by Graeme Clark on 02/12/14 11:30

Over the past couple of years it has become increasingly common for smoke and natural ventilation systems to be separated into different sub-contractor packages. For example, extract ventilators supplied by the roofing contractor, inlet vents by the glazing/cladding contractor, and wiring/controls by the M&E contractor.

In theory this makes sense because it may seem easier to procure the system in local packages. In practice it often doesn’t work.

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Topics: Natural ventilation, Smoke ventilation, Controls, Wiring

Natural ventilation in power generation facilities: roof ventilators or wall louvres for high level extract?

Posted by Graeme Clark on 23/09/14 11:30

I recently wrote about my view that natural ventilation should always be the first choice for power generation facilities. This leads me to another common discussion point: the choice between wall louvres and roof ventilators for high level extract.

Common concerns for design teams and contractors over roof ventilators include maintenance, planning constraints and rain ingress. However, a high quality roof ventilator will be maintenance free, low profile and 100% watertight.

Why are roof ventilators better than wall louvres for high level extract?

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Topics: Natural ventilation, Louvre, Power Plants

Why natural ventilation is best for power generation facilities: The facts and figures

Posted by Graeme Clark on 29/07/14 11:30

In my opinion, a natural ventilation system should always be the first choice for power plants, energy from waste, biomass, hydro stations, transformer stations and other similar buildings for 2 reasons:

1) The Environment 

The number and frequency of extreme weather events has been on the increase throughout the world. The climate is changing, of that there is no doubt, and the most popular theory is that this is due to the rise in CO2 emissions. 

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Topics: Natural ventilation, Energy saving, Climate Control, Power Plants

Overheating in corridors: when natural ventilation is not enough, evaporative cooling comes to the rescue

Posted by Paul Compton on 08/07/14 11:30

In previous articles we wrote about how you can solve overheating in residential buildings’ common areas by using the smoke control system to provide simple and effective cross flow ventilation and extract warm, stale air from these spaces. However, there are cases when this won’t be enough and the system will need some help to lower the temperatures to the desired level.
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Topics: Natural ventilation, Overheating, Corridor ventilation, Evaporative cooling

Q&A from our ventilation solutions for overheating corridors webinar

Posted by Laurence Cockman on 15/04/14 11:30

At my recent "Ventilation solutions for overheating corridors in apartment buildings" webinar, I received some interesting questions in the Q&A session. Here are my answers, which have been edited slightly for clarity.

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Topics: Natural ventilation, Webinar, Smoke ventilation, Overheating, Corridor ventilation

Airtight residential buildings: good for the environment but bad for our health?

Posted by Laurence Cockman on 18/03/14 11:30

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Topics: Natural ventilation, Webinar, Smoke ventilation, Overheating

Cooling glass factories: ventilation is a tricky business

Posted by Graeme Clark on 11/09/13 11:50

Natural gravity ventilation is the best cooling solution

The benefits of natural ventilation in large industrial buildings are clear and well accepted: no electricity is needed to operate the system, as it simply uses the energy present in the warm air – and there is plenty of this in a glass factory – and this buoyancy-driven airflow is virtually maintenance free.

You can read more about the benefits of natural ventilation in our previous blog post: Natural ventilation is the solution for most heat intensive industries.

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Topics: Productivity, Natural ventilation, CFD, Energy saving, Industrial ventilation