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The Engineering Mindset
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Electrical
Controls
HVACR
Mechanical
Energy
Merch Shop
Refrigerant types and their future
Paul Evans
-
Sep 20, 2017
4
How do Refrigerants work?
Paul Evans
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Sep 20, 2017
13
Pump calculations
Paul Evans
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Sep 11, 2017
12
How Air Cooled Chillers Work
Paul Evans
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Aug 14, 2017
13
Thermodynamic properties of refrigerant R-134a
Paul Evans
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Aug 5, 2017
3
Chiller Oil Lubrication Circuit
Paul Evans
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Jul 24, 2017
4
Chiller Cooling Capacity – How to calculate
Paul Evans
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Jul 22, 2017
35
Chiller Efficiency How to calculate
Paul Evans
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Jul 22, 2017
11
Chiller Cooling Capacity Control
Paul Evans
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Jun 4, 2017
4
Primary and Secondary circuits in centralised HVAC systems
Paul Evans
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May 15, 2017
5
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Ductwork sizing, calculation and design for efficiency
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Jul 3, 2018
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How Padlocks Work
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Aug 4, 2020
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Arc length, how to calculate
Paul Evans
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May 13, 2015
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Density explained!
Paul Evans
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May 18, 2015
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How Inverters Work
Paul Evans
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Dec 15, 2017
16
Fan Coil Units – FCU
Paul Evans
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Jul 3, 2019
10
Latest Content
Why This Doesn’t Make You Safe
Paul Evans
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Mar 11, 2026
0
Sponsored by Fluke. How RCDs and GFCIs prevent electric shock. Many people think a standard circuit breaker (MCB) protects them, but it only protects...
Why This Circuit Works When It Shouldn’t
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Edison’s Missed Billion Dollar Idea
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How to ACTUALLY Use an Oscilloscope (Beginner-Friendly Guide!)
Apr 28, 2025
How Electricity Works- For Visual Learners
Feb 26, 2025
Power Factor Explained – Your Electricity Bill Money Drain (Reactive Power)
Feb 17, 2025
Clamp Meter
Dec 11, 2024
Ground Faults
Nov 27, 2024
