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Properties of Air at atmospheric pressure
Paul Evans

Mar 29, 2015
2
Properties of water at atmospheric pressure
Paul Evans

Mar 29, 2015
1
Combine date and time cells in excel
Paul Evans

Mar 15, 2015
0
How to combine multiple cells in excel
Paul Evans

Mar 15, 2015
0
Seconds between two dates and times
Paul Evans

Mar 15, 2015
0
Hours between two dates and times
Paul Evans

Mar 15, 2015
0
What is Voltage?
Paul Evans

Mar 15, 2015
0
What is electricity?
Paul Evans

Mar 3, 2015
2
The difference between mass and weight
Paul Evans

Feb 20, 2015
2
Area of an annulus
Paul Evans

Feb 14, 2015
0
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Density of Metals
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May 18, 2015
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The typical density of common metals can be found listed in the table below. To see how density of materials is calculated, click here. If...
Properties of Air at atmospheric pressure
Paul Evans

Mar 29, 2015
2
The properties of Air have been tabulated below, listed by temperature in ascending order. The properties listed are density, viscosity specific heat capacity, thermal...
Refrigeration cycle, essential knowledge.
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Jun 7, 2015
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A fluid, known as a refrigerant, moves between four key stages in refrigeration cycle. As it does so, it changes in pressure and temperature,...
Electrical Resistance
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What is resistance? Resistance is the opposition to the flow of electrons in a circuit through a conductor. If you need to refresh on how...
Volume of a sphere
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Sep 14, 2015
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The volume of a sphere can be calculated using the following formula V = (4÷3) x Π x r3 Where V = Volume (m3) Π = Pi (3.142 approx) r...
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How a Chiller, Cooling Tower and Air Handling Unit work together
Paul Evans

Sep 26, 2017
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Density explained!
Paul Evans

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Chiller Cooling Capacity – How to calculate
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Cooling Load Calculation – Cold Room
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Mass flow rate explained (kg/s)
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