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This conversation is part of our “CO2 Experts” series, this one featuring Nabil Cook, Technical Director for Omega Solutions, with a presentation on oil management design, specifically for transcritial CO2 refrigeration. Nabil covers oil separator sizing, oil line sizing, different types of oil used in CO2 systems, and various oil management strategies. Nabil also shares practical tips for handling and storing oil, the importance of understanding compressor oil throw rates, and provides detailed explanations on calculating required oil reservoir capacity and system oil charge.

In this conversation, we discuss:

-Oil management design for transcritical CO2 refrigeration

-Oil management system components

-Oil regulators

-Oil separators

-Oil reservoirs

-Oil coolers and temperature management

-Oil management system strategies

-Managing oil throw - scrolls vs. recipes

-Oil line sizing

-Comparing oil types

Helpful Links & Resources:

Episode 246. CO2 Experts: Startup and Commissioning with Kevin Mullis

Episode 114: Energy Consumption Breakdown of CO2 Transcritical Systems with Nabil Cook

Episode 195. Designing CO2 Supermarket Refrigeration Systems: Projecting Annual Energy Consumption with Nabil Cook of Omega Solutions (Part 5 of 5)

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