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Tony Olsson
Why acoustics is an essential part of indoor environmental quality
Service noise, exterior noise, reverb time and acoustic separation are all important factors of a good acoustic climate. These factors, among others, are normally regulated through mandatory building regulations and are essential for a good indoor environment and our well-being.Mikael Börjesson
What should we take with us from 2021?
There are a number of key lessons from 2021 which we as an industry need to learn from and take action on. And there are plenty of clues to what we can expect will happen next.Alessandro Pinato
Why are we moving more water than necessary?
Hydronic distribution for HVAC-systems are too often settled with an outdated technological approach, making the overall system inefficient and distributing more water than is necessary. Big savings can be made in terms of energy consumption by changing the distribution system.Anna Sundell
Why indoor climate in hotels is key to a good sleep environment
People check in to hotels for various reasons, for example business trips, vacations or even just relaxation to catch up on sleep. The last reason is actually more common than you might think. Regardless of the reason for staying at a hotel the person checking in needs somewhere to sleep.William Lawrance
The many advantages of sorption technology
Air handling units equipped with rotary heat exchangers with a sorption coating bring significant opportunity for energy and carbon emission reductions, while also improving the indoor environment. But what exactly is it that make them so advantageous? Here is a step-by-step guide to understanding …Paolo Dalle Fratte
High temperature heat pumps – the heating solution of the future
The EU – and the world, for that matter – is facing a huge challenge from climate change. In the 2009 climate and energy package based on the Kyoto Protocol, the EU set key targets for 2020: 20 percent reduction in greenhouse gas emissions (from 1990 levels), 20 percent of EU energy from …Martin Ottersten
The vital quest for quieter fans
How can quiet fans affect the indoor environmental quality (IEQ), safeguard people's health, and reduce global CO2 emissions? Here’s a report from the cutting edge of fan research.Alberto Ferrandi
A better way to calculate energy efficiency for polyvalent units
There are several energy efficiency indexes used in the refrigeration business. However, not all of them are applicable to all types of units – specifically, there are some problems with using existing indexes for polyvalent units. But first, let us go through some of the different indexes out …Mikael Börjesson
The new office era – trends and solutions
All around the world offices are gradually opening up after lockdowns and restrictions. But even if we can go back to the office, we can not go back in time. So, what will our new office look like, and how do we need to prepare for meeting the new office era?By topics