What is an Economizer and How Does it Improve Efficiency?

Posted by Kenny Beach on Mar 2, 2021 9:00:17 AM

In industries like commercial and industrial HVAC, there’s an understandably massive focus on innovations aimed at improving efficiency. Billions of dollars are spent every year on research and development to drive down operating costs without compromising on performance. Doing more with less is the name of the game, and included among the measures intended to do so is the economizer.

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Topics: Power Generation, HVAC, Heat Exchangers, Efficiency, Engineering

SRC Launches Validated R-449A & R-448A Condenser Performance Model

Posted by Dr. Jian Yu on Feb 11, 2021 8:59:27 AM

We’re super excited to announce that we’ve validated the performance ratings for R-449A and R-448A condensers in Enterprise, our coil selection software. We believe the condenser coil performance model we’ve developed is the most comprehensive and accurate of its kinds in the industry.

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Topics: Heat Exchangers, Efficiency, Expertise, Reliability, Engineering, Refrigerants

Coils' Roles in Football's Biggest Game

Posted by Super Radiator Coils on Feb 4, 2021 7:02:31 AM

As far as stages go, the big game is one of the biggest out there, and there’s a small army responsible for making sure the game goes off without a hitch. Behind that army of personnel is an even larger assemblage of vehicles, equipment, and other technology that help along the way – one of which is the heat exchanger.

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Topics: Refrigerated Display Case, Food Storage & Processing, Ground Support, Computer & Electronics Cooling, HVAC, Coils, Efficiency, Reliability

R-410A: Pros, Cons, & Comparisons to Other Refrigerants

Posted by Super Radiator Coils on Dec 16, 2020 8:59:20 AM

Our refrigerant focus series consists of deep dives into the history, properties, suitable applications and pros and cons of some of today’s common refrigerants. This installment will focus on R-410A.

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Topics: Refrigerated Display Case, Heat Exchangers, Efficiency, Reliability, Engineering

4 Kinds of Tube-Side Coil Fouling & How to Prevent Them

Posted by Super Radiator Coils on Dec 9, 2020 9:51:22 AM

When designing a heat exchanger, an engineer should not only consider thermal performance, but also external influences that can negatively impact thermal performance, such as fouling.

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Topics: Power Generation, HVAC, Coils, Nuclear Products, Efficiency, Expertise, Reliability, Engineering

What is a Refrigerant Distributor and What Does it Do?

Posted by Ken Allen on Oct 5, 2020 12:17:44 PM

In a refrigeration circuit, the evaporator coil plays a critical role. Part of its responsibility is creating the controlled pressure drop necessary for the refrigerant to change phase, the bulk of which occurs via the system’s metering device, such as a thermostatic expansion valve (TXV).

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Topics: Refrigerated Display Case, Computer & Electronics Cooling, HVAC, Coils, Efficiency, Expertise, Refrigerants

Ethylene Glycol vs. Propylene Glycol: Differences & Uses

Posted by Will Klick, P.E. on Sep 28, 2020 3:35:57 PM

For low-temperature hydronic systems, systems in which chillers and AHUs are located outdoors, or other equipment used in low-temperature processes, some form of glycol is a critical ingredient. It works to lower the fluid’s freezing temperature, enabling lower-temperature operation and preventing freezing.

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Topics: Food Storage & Processing, Ground Support, Coils, Heat Exchangers, Efficiency, Expertise, Reliability, Engineering

Turbulators in Heat Exchangers: Types and Purposes

Posted by Ken Allen on Aug 4, 2020 11:43:32 AM

In fin tube heat exchangers, the fluid (gas/water/glycol/refrigerant/etc.) circulating through the coil’s tubes is extremely important for the coil’s overall performance – it’s half the battle, along with airside heat transfer. The degree to which the fluid contacts the tube walls affects the coil’s performance and influences a system's overall efficiency – the more the fluid comes into contact with the tube wall, the better – and more economical – the heat transfer.

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Topics: Coils, Heat Exchangers, Efficiency, Engineering

Causes & Solutions to Airside Coil Fouling

Posted by Louis Rogerson on Jul 13, 2020 6:02:25 PM

Fin tube heat exchangers are subject to fouling, which takes place as long as there is an airflow or waterflow in the unit. Defined as thermal resistance due to the accumulation of contaminants on heat transfer surfaces, fouling negatively affects heat exchanger efficiency, longevity, and increases system operating costs.

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Topics: Ground Support, Computer & Electronics Cooling, HVAC, Coils, Efficiency, Turbine Inlet Air Cooling and Heating

R-410A vs R-407C in Warmer Ambient Environments

Posted by Ken Allen on Jun 19, 2020 9:49:05 AM

There are dozens of commercially available refrigerant options on the market today, including numerous refrigerant blends, which aim to replicate the effectiveness of former workhorses like R22, the production of which was made illegal as of January of this year. Two popular examples of refrigerants developed in the last 30 years or so that are used in the HVAC industry are R-410A and R-407C. These two refrigerants are often used for similar applications, but they have some marked differences that should be understood and considered when deciding between them.

Want to learn more about some of today's popular refrigerants? Check out the brand new, free SRC Refrigerant Guide!

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Topics: HVAC, Coils, Efficiency, Expertise, Refrigerants

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