Carel USA
Carel USA
Blog Post
  • 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 Panel1 to review energy efficiency opportunities in the refrigeration and air-conditioning and heat-pump sectors related to a transition to climate-friendly alternatives, includ...

Carel USA
Carel USA
Blog Post
  • 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 Panel1 to review energy efficiency opportunities in the refrigeration and air-conditioning and heat-pump sectors related to a transition to climate-friendly alternatives, inclu...

Carel USA
Carel USA
Blog Post
  • The increasingly widespread use of e-commerce tools is changing our habits and, unquestionably, our lifestyle. The purchase of consumer goods like books, clothes, tech products and food products is now par for the course thanks to the most diverse of marketplaces, which make these goods available simply even to the least expert users.  This tendency, linked to the demand of users to get what they...

Carel USA
Carel USA
Blog Post
  • Undoubtedly the best results in terms of reducing carbon footprint and environmental impact are achieved using a variable-speed compressor working with a natural refrigerant, i.e. R-290 (Propane), with intrinsically high thermodynamic efficiency. In our point of view, a compressor for a plug-in commercial refrigeration unit (i.e.: bottle coolers, chest freezers, display cases) should be: variable...

Carel USA
Carel USA
Blog Post
  • When I was a child, my mother always waited for me after school. She was a housewife, just like many of my classmates’ mothers. In the eighties, in a provincial town in northern Italy, there were few full-time schools and almost no summer camps. Today, thirty years later, things have changed radically, and when I go to pick up my son from school, in the mid-afternoon, I meet many grandparents and ...

Carel USA
Carel USA
Blog Post
  • Last night I was watching a TV game show: there was a 23-year-old contestant who didn’t know that the acronym CPU stood for the central processing unit of a personal computer. This seemed strange to me, and so I started wondering why. When I was that age, a little less than 20 years ago, a computer was an object of desire, whose hardware specifications, such as the processor, RAM and hard disk, we...

Carel USA
Carel USA
Blog Post
  • Once again this year Carel took part in “Data Centre World” (DCW) London, one of the most important events in this sector worldwide, attracting the main operators in the field of ICT (Information and Communication Technology) infrastructure. The trade show is held in conjunction with other events (Cloud Expo, Cloud Security Expo, Big Data World and Smart IoT) and thus represents a very interestin...

Carel USA
Carel USA
Blog Post
  • Mostra Convegno Expocomfort (MCE), held this year in Milan from 13 to 16 March, has always been an exhibition showcasing innovation in the HVAC/R business. Indeed, I have always appreciated the emphasis placed by exhibitors in presenting their new ideas and solutions in Milan, much more than at other important events that are held periodically in Europe, Asia and America. The 2018 event saw more v...

Carel USA
Carel USA
Blog Post
  • To say that the next few years will be a smooth ride for the HVAC/R industry in the United States of America easily transitioning to the next generation of low GWP refrigerants, would be the understatement of the year. There is a network of potential pathways to achieve HFC (hydrofluorocarbon) phasedown in the USA; each one is a mixed bag of educated guesses, misinformed opinions and litigated int...

Carel USA
Carel USA
Blog Post
  • We all know the story of Nokia, which in the 1990s was the undisputed leader in the sale of mobile phones. They made the best phones, with a quality of reception that even now few others match. But then someone in the USA invented the iPhone and the company went into a downward spiral that it has still not recovered from. In the past, makers of audio tapes found themselves displaced by the arrival...

Carel USA
Carel USA
Blog Post
  • Less than 4 months remain to prepare for more stringent limits on European condensing units! In detail, Ecodesign requires an increase in efficiency of between 6-14 %, depending on the categories, compared to the 2016 tiers. This comes at a crucial moment for HFC phase-down and with some uncertainty among condensing unit manufacturers regarding the alternative refrigerants to be used, which undoub...

Carel USA
Carel USA
Blog Post
  • Undoubtedly the best results in terms of reducing carbon footprint and environmental impact are achieved using a variable-speed compressor working with a natural refrigerant, i.e. R-290 (Propane), with intrinsically high thermodynamic efficiency. In our point of view, a compressor for a plug-in commercial refrigeration unit (i.e.: bottle coolers, chest freezers, display cases) should be: variable...

Carel USA
Carel USA
Blog Post
  • 2018 may be the year when the charge limit of 150 g for flammable refrigerants in commercial refrigerators will be increased to 500. This may be a very important step towards the use of natural refrigerants, while on the other hand it entails a huge responsibility in terms of safety. Indeed, the working group that is defining the additional requirements has the scope of ensuring that the safety le...

Carel USA
Carel USA
Blog Post
  • From 22 to 24 January, Chicago hosted AHR Expo, a great opportunity to take stock of HVAC/R market trends: a goal that was fully met over three very intense days of meetings and discussions, with the possibility to explore topics of current interest from both a technical viewpoint (the future of refrigerants, the continuous search for better energy efficiency...) and as regards the user experienc...

Carel USA
Carel USA
Blog Post
  •   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 various sessions and seminar...

Carel USA
Carel USA
Blog Post
  • The increasing tendency to have connected devices that provide remote access to installations through monitoring systems is paving the way for the systematic collection of vast amounts of data. In the HVAC/R sector in particular, unit variables, control and operating parameters, such as valve position, set point, compressor status, water/air temperatures and so on, if appropriately recorded can re...

Carel USA
Carel USA
Blog Post
  • You know that chill you feel on your face on a foggy day? Well, it’s caused by the heat released by your body to the small airborne droplets of moisture that touch your skin and evaporate. This is evaporative cooling. Evaporative cooling exploits the natural evaporation of water to provide cooling. Water naturally evaporates into vapour as long as the air it is in contact with is not saturated, o...

Carel USA
Carel USA
Blog Post
  • One year of “sharing ideas” on HVAC/R! Today is a day to celebrate for CAREL’s blog! 50 posts have been published during this first year, with thousands of views and listing in the world Top 5 RAC blogs. The topic “humidity and temperature control” has been the most blogged, with 18 posts. “Refrigerants” and “Regulations and standards” share second place, with 15 posts. The bronze medal goes to “...

Carel USA
Carel USA
Blog Post
  • 2020, Rome. A man arrives quietly at a “gas” station in his brand-new car. He jumps down from the car and lights a cigarette. He looks around, takes the charger and fills up the car. After 15 minutes, his car is fully recharged, and he heads off towards Milan without needing to stop on the 600 km trip. Yes, believe it or not, this is an electric vehicle (EV). Ok, the dates and numbers above may va...

Carel USA
Carel USA
Blog Post
  • Any parent knows that kids want to get what they wish for now, and in the form and shape they like, and without wasting energy and time to get it and enjoy it, and, and, … This is typical of youth, when parents begin to slowly ‘unleash’ their kids, and they feel that the much-awaited freedom of realising their dreams, or at least of trying to, is within arms’ reach, aiming to live their life the ...

Carel USA
Carel USA
Blog Post
  • I knew that this business trip would be different from the others. Going more than 11,000 km away together with representatives of Italian refrigeration companies to explain what is currently happening in Europe definitively seemed promising. “We have 10 refrigeration experts who are like Messi at football”, was how Prof. Cavallini introduced us in Messi’s home capital city. This was very kind of ...

Carel USA
Carel USA
Blog Post
  • Smartphones, smart watches, smart bands, smart homes, smart grids, smart heat pumps: I’ve probably left a few out. Including, and I’ve never understood why, poor old tablets, notebooks, ultrabooks, and even the now-defunct netbooks, among the few devices that have rarely been lucky enough to be called smart.  Therefore, as the inconsistency of what we often read and see defined on the web and the ...

Carel USA
Carel USA
Blog Post
  • Keeping a comfortable temperature throughout the year has become a must. Not so long ago, people used to just have a stove to heat the house in winter, with temperature control based on their own perception and opening windows when feeling the temperature was too high. Moreover, heating and cooling have been traditionally considered as separate concepts, different fields of study… or even opposing...

Carel USA
Carel USA
Blog Post
  • The printing industry features a multitude of different technologies that can be used, from traditional printing (such as offset printing, rotogravure printing, screen printing, etc.) to digital printing (for example, inkjet or laser).  The processes underlying these technologies are quite different, but they all share one need: to control humidity in the processing and storage environments.  Sto...

Carel USA
Carel USA
Blog Post
  • Carel’s recent participation at “Data Center World” (DCW) Asia in Singapore was a great opportunity to meet some of the industry’s leading players in the southeast Asian area, addressing issues relating to data centre cooling in this region specifically and throughout Asia in general. This part of the world is experiencing strong economic growth, and with this comes a considerable increase in dem...

Carel USA
Carel USA
Blog Post
  • Late 2017. “What is the replacement refrigerant for R-410A” is the question that perhaps more than any other is being asked in the HVAC industry. This is a consequence of other factors, such as: how much will R410A cost in the next semester? Will it continue to be so difficult to source as has been the case for the last few months? Personally, I tried to find a response by participating at the Hea...

Carel USA
Carel USA
Blog Post
  • With an outdoor temperature of 26°C on 24 October, it could be said that the weather in Madrid was in line with the main focus of the first ATMOsphere Ibérica event: the challenges of natural refrigerants in warm climates. “Climatic conditions in Spain, Portugal and Latin American make the transition to natural refrigerants, in particular CO2, more difficult”, stated Alvaro de Oña, the event’s org...

Carel USA
Carel USA
Blog Post
  • This is the third and final discussion on paint booth applications. If you haven’t read the previous ones yet, please don’t forget to check them out! Today I’m going to talk about the best humidification solution for this specific application.  First of all, there is no one overall best solution, rather it depends on the requirements of each individual installation. A good guide is to find out wh...

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