In this episode of Taking the Temperature on HVAC, host Jamie Kitchen is joined by John Broughton and Jorg Saar to explore the critical role of pressure regulators in refrigeration systems. They discuss how condenser, evaporator, and case pressure regulators help maintain system stability across varying loads and ambient conditions, ensuring proper pressure differentials for metering devices and protecting compressors from overload. The conversation covers common misconceptions, design considerations like receiver sizing and hot gas bypass, and compares the use of crankcase pressure regulators versus MOP valves. Emphasizing the importance of system knowledge, the episode highlights how these components work together to ensure reliable, efficient HVAC operation. 

Welcome to "Taking the Temperature on HVACR," hosted by Jamie Kitchen. In this insightful episode, Jamie is joined by regular guests, Jorg Saar and John Broughton, as they delve into the intricate relationship between temperature and pressure within refrigeration systems. The discussion covers the fundamentals of the refrigeration cycle, emphasizing how temperature differences drive heat transfer, and the role of components like evaporators and compressors. Explore the fascinating dynamics of vapor compression and learn how thermodynamics governs the operation of HVAC systems. Whether you're an industry professional or simply curious about how your fridge works, this episode offers valuable insights into the science behind keeping things cool. 

While the space temperature in a refrigerated space may be used to control the refrigeration system, there is a lot more going on that we must also take control of. 

The thermostat initiates a pump down cycle to control/limit refrigerant migration to protect the compressor and enable defrost to occur more rapidly. 

Control over the temperature, humidity, velocity and direction of air leaving the unit cooler must be maintained to ensure that product is not dried out or frozen even when stored in temperatures above freezing. 

How product is placed within the cooler or freezer must be controlled so that sufficient airflow through the space and around the product occurs for quick and efficient heat removal. 

In this episode of Taking the Temperature on HVACR, host Jamie Kitchen welcomes special guest Maiken Hansen to explore the world of hydronic balancing. They discuss how unbalanced heating systems in multi-family buildings can lead to cold tenants, noisy radiators, and high energy bills—and how dynamic balancing solutions can improve comfort, reduce complaints, and cut energy costs by up to 25%. Whether you're a facility manager, building owner, or just curious about smarter heating solutions, this episode dives into the challenges and benefits of efficient hydronic balancing. 

Join Jamie and John in this episode of Taking the Temperature on HVAC-R as they tackle noise and vibration in commercial refrigeration and air conditioning systems. Discover the causes, impacts, and practical solutions to enhance acoustic performance and system efficiency. Perfect for cooling installers looking to optimize their installations and meet customer expectations!

In this episode of Taking the Temperature on HVAC-R, Jamie, John, and Jörg take you on a deep dive into the world of pressure controls in HVAC systems. Uncover the key differences between safety and control functions, explore practical tips for optimizing system efficiency, and gain insights into real-world applications in refrigeration and beyond. 

Join host Jamie Kitchen and experts Jörg and Stefan as they dive into innovative alternatives to the conventional vapor compression cycle, examining their principles, advantages, disadvantages, and market potential. From thermoelectric and absorption cooling to emerging technologies like magnetic and thermoacoustic systems, discover the advancements that could reshape the HVAC industry.

Join Jamie Kitchen in part two of our Taking the Temperature on HVAC-R series as he explores more highlights from Chillventa 2024. This year's topic on the Danfoss booth at Chillventa was “Shift your perspective on the cold chain,” showcasing how solutions enhance efficiency and sustainability from farm to table. In this Episode Jamie dives into insightful conversations with Danfoss experts Jörg, Mathieu, and Julian.

Discover key discussions about cold rooms, commercial heat pumps, chillers, and the rise of digital services in refrigeration.

Join Jamie Kitchen as he explores the latest trends from Chillventa, the top exhibition for refrigeration technology. This year's topic on the Danfoss booth at Chillventa was “Shift your perspective on the cold chain,” showcasing how solutions enhance efficiency and sustainability from farm to table. Jamie speaks with Danfoss expert Anatoly on the highlights of food processing and cold storage, and Gabriele de Bona on supermarket innovations. Special guest Trevor Matthews, the Refrigeration Mentor, also shares insights from his visit to the Danfoss booth.

"Stay tuned for the next part of Jamie Kitchen's Chillventa journey!  Jamie continues his deep dive into the latest trends with Danfoss experts Jörg, Matthieu, and Julien. They discuss innovations in cold rooms, commercial heat pumps, chillers, and digital services in refrigeration technology. Coming soon!"

Jamie Kitchen and his guests explore the essential role of the cold chain in preserving and transporting food from farm to table. They discuss the refrigeration technology behind it, its global impact on reducing food waste, and challenges in different regions. Using examples like milk, fruits, and vegetables, they explain the importance of precise temperature and humidity control for maintaining food quality.

The episode also highlights the importance of technicians in keeping the cold chain running, ensuring fresh food distribution worldwide.