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Entries with tag temperature and humidity control .

Humidification: When Knowledge Pays Off

Atlanta Humidity is often seen under the negative light of mould, uncomfortable conditions, sweat and stickiness. Bad things, in other words, generally considered worth avoiding. On the contrary, in many important cases, humidity is important, if not fundamental. There are industrial processes where it is needed: for instance, paper printing, wood processing, food preservation....
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Best Defense for Flu Season: The Gorilla in the Room

Do we really see everything that is right in front of us? Most of us will believe that we are fully aware of our circumstances and highly alert of our surroundings. Now, let’s consider a term that was coined by researchers and authors Arien Mack and Irvin Rock in their same titled book “ Inattentional Blindness ” (MIT Press, 1998). Many people believe that merely by opening their eyes,...
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The challenges of preserving artworks in Castel Sant’Angelo

Castel Sant’Angelo (Hadrian’s mole or “Castellum Crescentii” in the 10th-12th centuries), also called the Mausoleum of Hadrian, is a monument located on the right bank of the Tiber in Rome, opposite the Pons Aelius (currently called Ponte Sant’Angelo), not far from the Vatican, in the Borgo district. it connects to Vatican City via the fortified corridor known as the “passetto”. The...
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Clean rooms: why is air quality essential?

The constant increase in the technological level of production processes (in particular in the electronics industry) and the increasingly stringent regulations on hygiene and quality (chemical and pharmaceutical industries) have led to the growing use of controlled-contamination environments . These are areas with specific air requirements in terms of “ contaminant presence ”, so as to...
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Humidification in clean rooms

The processes that take place inside a clean room are considerably influenced by the thermodynamics of the air . In the article “ Clean rooms: why is air quality essential? ”, we looked at how the air handling unit and its control system are crucial in guaranteeing a high quality process. Humidification plays a primary role in controlled-contamination environments , where the...
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Lotuses and Artefacts - Hangzhou, China, 23-24 August 2018

Hangzhou is a pleasant city with a population of around 9 million (2015), located in the Chinese Province of Zhejiang, approximately 1 hour by train south of Shanghai. It is located near the end of the Grand Canal , the oldest and longest man-made waterway in the world, built to connect Beijing with Ningbo, on the eastern coast, and support commerce to and from the capital;...
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Heat recovery ventilation and humidification: the new horizon in comfort

Heat recovery ventilation (HRV) systems are today becoming more and more important in the commercial and residential ventilation sector. These systems involve very compact air handling units, equipped with heat recovery, which introduce a stream of fresh air from the outside into the air-conditioned environment, while at the same time discharging the exhaust air. The heat exchanger,...
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Kigali, energy efficiency and control schemes - 2nd part

The Kigali amendment to the Montreal Protocol was signed on 16 October 2016, with the intention of phasing out HFCs, being contributors to global warming. Interestingly, a request to “the Technology and Economic Assessment Panel 1 to review energy efficiency opportunities in the refrigeration and air-conditioning and heat-pump sectors related to a transition to climate-friendly...
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Kigali, energy efficiency and control schemes - 1st part

The Kigali amendment to the Montreal Protocol was signed on 16 October 2016, with the intention of phasing out HFCs, being contributors to global warming. Interestingly, a request to “the Technology and Economic Assessment Panel 1 to review energy efficiency opportunities in the refrigeration and air-conditioning and heat-pump sectors related to a transition to climate-friendly...
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2018 ASHRAE Winter Conference in Chicago

  Humidification: renewed interest! Refrigerants: feeling the “natural” pressure?   The ASHRAE Winter Conference was held on 20-24 January 2018, during some mild winter weather (incredibly for Chicago, just around freezing!). Like all ASHRAE Conferences, the event was attended by several thousand people, who asked questions, learned and profitably networked during the...
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