Andre Patenaude's guest appearances

Andre Patenaude

HVAC School - For Techs, By Techs

The Refrigeration Mentor Podcast

Kevin Hart

Bill Johnson

Ruth King

Chris Stephens

Dan Holohan

John Ellis

Bill Spohn

Jack Rise

Andy Holt

Jerry Eavenson

Nate Adams

David Richardson

Jim Bergmann

Jim Loring

Jamie Kitchen

OwlTail

In this episode, we'll be talking about -what high ambient strategies are, and -how they work in CO2 systems. High ambient strategies are a way of producing CO2 that involves using a combination of low-grade heat from something like a waste incinerator or garbage dump, and then recycling it back into the system to produce more carbon dioxide. It's an effective method for reducing your carbon footprint, but it can be very expensive and resource-intensive.  What you will learn from today’s episode:  Let’s get to know our guest - his work background at Emerson and CO2 Understanding what high ambient strategies is and why it’s important A walk through of the system and know what’s going on What is an adiabatic process and how does it work? What are parallel compressions and what does it do? Understand what heat reclaim does in the CO2 refrigeration system The difference between a CO2 system from an HFC system Why learning and understanding controls in the CO2 system is very important    ‘If you don’t know much about CO2, you should start learning. It will differentiate you as a service technician from the rest. It’ll make you more valuable in the future.’ - Andre Patenaude   About Our Guest Andre Patenaude is the Director of Emerson Commercial &amp; Residential Solutions. He supports system-related innovation and leveraging Emerson’s global cold chain to drive adoption of integrated solutions in North America. Led marketing efforts pertaining to Emerson’s food retail and chiller markets. Prior to that, Andre managed Emerson’s global CO2 business development.   Get in touch with Andre Patenaude E-mail: andre.patenaude@emerson.com LinkedIn: @andrepatenaude   All Access to Refrigeration Mentor Content:  https://linktr.ee/refrigerationmentor    Upcoming Events with Refrigeration Mentor Free System &amp; Compressor Troubleshooting Guide Subscribe to the Refrigeration Mentors video newsletter and get your  Free Compressor Guide Get to know more about Refrigeration Mentor Podcast: Visit our website: www.refrigerationmentor.com Youtube Channel : Refrigeration Mentor Connect with the Refrigeration Mentor: @RefrigerationMentor

In this episode, we'll be talking about -what high ambient strategies are, and -how they work in CO2 systems. High ambient strategies are a way of producing CO2 that involves using a combination of low-grade heat from something like a waste incinerator or garbage dump, and then recycling it back into the system to produce more carbon dioxide. It's an effective method for reducing your carbon footprint, but it can be very expensive and resource-intensive.  What you will learn from today’s episode: <ul> <li>Let’s get to know our guest - his work background at Emerson and CO2</li> <li>Understanding what high ambient strategies is and why it’s important</li> <li>A walk through of the system and know what’s going on</li> <li>What is an adiabatic process and how does it work?</li> <li>What are parallel compressions and what does it do?</li> <li>Understand what heat reclaim does in the CO2 refrigeration system</li> <li>The difference between a CO2 system from an HFC system</li> <li>Why learning and understanding controls in the CO2 system is very important</li> </ul> ‘If you don’t know much about CO2, you should start learning. It will differentiate you as a service technician from the rest. It’ll make you more valuable in the future.’ - Andre Patenaude About Our Guest Andre Patenaude is the Director of Emerson Commercial &amp; Residential Solutions. He supports system-related innovation and leveraging Emerson’s global cold chain to drive adoption of integrated solutions in North America. Led marketing efforts pertaining to Emerson’s food retail and chiller markets. Prior to that, Andre managed Emerson’s global CO2 business development. Get in touch with Andre Patenaude E-mail: andre.patenaude@emerson.com LinkedIn: <a href="https://www.linkedin.com/in/andrepatenaude/" rel="nofollow" target="_blank">@andrepatenaude</a> All Access to Refrigeration Mentor Content:  <a href="https://linktr.ee/refrigerationmentor?utm_medium=Organic&amp;utm_source=Podcast&amp;utm_campaign=Content_Generation&amp;utm_content=EP07" rel="noopener nofollow" target="_blank">https://linktr.ee/refrigerationmentor</a> <a href="https://offers.refrigerationmentor.com/events?utm_medium=podcast&amp;utm_source=libsyn&amp;utm_campaign=episode2&amp;utm_content=20220518" rel="nofollow" target="_blank"> Upcoming Events</a> with Refrigeration Mentor Free System &amp; Compressor Troubleshooting Guide Subscribe to the Refrigeration Mentors video newsletter and get your <a href="https://offers.refrigerationmentor.com/free-guide?utm_medium=podcast&amp;utm_source=libsyn&amp;utm_campaign=episode2&amp;utm_content=20220518" rel="nofollow" target="_blank"> Free Compressor Guide</a> Get to know more about Refrigeration Mentor Podcast: Visit our website: <a href="https://refrigerationmentor.com/" rel="nofollow" target="_blank">www.refrigerationmentor.com</a> Youtube Channel : <a href="https://www.youtube.com/c/RefrigerationMentor" rel="nofollow" target="_blank">Refrigeration Mentor</a> Connect with the Refrigeration Mentor: <a href="https://www.linkedin.com/company/refrigeration-mentor/" rel="noopener nofollow" target="_blank">@RefrigerationMentor</a>

Episode 007 - High Ambient Strategies for CO2 Refrigeration with Andre Patenaude

In this episode of the podcast, Bryan talks with Andre Patenaude from Emerson about CO2 refrigeration, and transcritical booster systems. Modern CO2 systems are efficient and effective due to their electrical controls and components, including case and high-pressure controls. Carbon dioxide (CO2) is a good refrigerant to address global climate change. From a sustainability standpoint, carbon dioxide is a superior refrigerant to HCFCs and HFCs. Carbon dioxide is also an A1 refrigerant, meaning that it is non-toxic and non-flammable. It is also inexpensive and compares to HFCs in cost. Unfortunately, it can rapidly change pressures and is more efficient in lower ambient temperatures. Overall, CO2 is a desirable refrigerant as we address the challenge of sustainability but is not without its challenges. During the refrigeration cycle, carbon dioxide's critical point comes into play. In hotter ambient temperatures, the carbon dioxide's temperature and pressure may exceed the critical point. The refrigerant then becomes a supercritical fluid; the pressure and temperature change independently of each other. Accessing the supercritical zone is also known as "transcritical." Carbon dioxide refrigeration is best for low-temperature grocery refrigeration. It has also worked its way into industrial refrigeration. However, the greatest challenge revolves around the condensing temperature. Carbon dioxide must reject its heat to something that is much colder than it. A transcritical booster system's condenser becomes a gas cooler in the summer; instead of leaving the condenser as a liquid, a CO2 system leaves the gas cooler as a supercritical fluid. It becomes liquid when it passes through an electronic expansion valve (EEV) before the receiver. The CO2 refrigeration system also contains a flash tank and a bypass valve. The bypass valve partially dictates which compressor the refrigerant fluid travels to. There are also low and medium-temperature evaporators and compressors. Resources Seven Keys to Servicing CO2 Systems - Article by Andre  CO2 Booster Systems Introduction - Article by Bryan  Cascade Refrigeration - Article by Bryan  Emerson CO2 Application Guide

In this episode of the podcast, Bryan talks with Andre Patenaude from Emerson about CO2 refrigeration, and transcritical booster systems. Modern CO2 systems are efficient and effective due to their electrical controls and components, including case and high-pressure controls. Carbon dioxide (CO2) is a good refrigerant to address global climate change. From a sustainability standpoint, carbon dioxide is a superior refrigerant to HCFCs and HFCs. Carbon dioxide is also an A1 refrigerant, meaning that it is non-toxic and non-flammable. It is also inexpensive and compares to HFCs in cost. Unfortunately, it can rapidly change pressures and is more efficient in lower ambient temperatures. Overall, CO2 is a desirable refrigerant as we address the challenge of sustainability but is not without its challenges. During the refrigeration cycle, carbon dioxide's critical point comes into play. In hotter ambient temperatures, the carbon dioxide's temperature and pressure may exceed the critical point. The refrigerant then becomes a supercritical fluid; the pressure and temperature change independently of each other. Accessing the supercritical zone is also known as "transcritical." Carbon dioxide refrigeration is best for low-temperature grocery refrigeration. It has also worked its way into industrial refrigeration. However, the greatest challenge revolves around the condensing temperature. Carbon dioxide must reject its heat to something that is much colder than it. A transcritical booster system's condenser becomes a gas cooler in the summer; instead of leaving the condenser as a liquid, a CO2 system leaves the gas cooler as a supercritical fluid. It becomes liquid when it passes through an electronic expansion valve (EEV) before the receiver. The CO2 refrigeration system also contains a flash tank and a bypass valve. The bypass valve partially dictates which compressor the refrigerant fluid travels to. There are also low and medium-temperature evaporators and compressors. Resources <a href="https://hvacrschool.com/wp-content/uploads/2017/05/CO2_PDF.pdf" rel="nofollow" target="_blank">Seven Keys to Servicing CO2 Systems</a> - Article by Andre <a href="https://hvacrschool.com/co2-booster-systems-codenamed-co2-interesting-weird/" rel="nofollow" target="_blank"> CO2 Booster Systems Introduction</a> - Article by Bryan <a href="https://hvacrschool.com/what-is-cascade-refrigeration/" rel="nofollow" target="_blank"> Cascade Refrigeration</a> - Article by Bryan <a href="http://www.emersonclimate.com/en-us/Market_Solutions/By_Solutions/CO2_solutions/Documents/Commercial-CO2-Refrigeration-Systems-Guide-to-Subcritical-and-Transcritical-CO2-Applications.pdf" rel="nofollow" target="_blank"> Emerson CO2 Application Guide</a>

Introduction to CO2 w/ Andre Patenaude