

Useful and just plain fascinating RAC Engineering Facts and Data
KISSING with Mistral
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RAC scientific and technical definitions. Some common, some rare. In jargon free plain English!
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Conversion Factors Imperial to SI and vica-versa. Tabulated data.
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Standard Condition Ratings (EN328 according to Eurovent). Mistral program Standard.
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Common Properties for Air. Tabulated data.
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SSL. Standard Sea-Level conditions. Basic Atmospheric properties.
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Air Conditioning - Recommended Air Changes per Hour.
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Free Psychrometric Chart. (pdf file)
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Air Enthalpy Tables and Psychrometrics calculator
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Specific heat of some common chemicals and liquids
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Psychrometrics calculator
CO2 Properties
High quality Refrigerant PH Charts. PNG files for R22, R134a, R404A, R407c, R410a, R717 and R744.
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What is the difference between temperature scales Celsius and Centigrade?
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Hydrochlorofluorocarbons (HCFC)
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International Electricity Distribution standards. Single and three phase current and frequency.
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Two letter Country ISO 3166-1 Codes
Average human body temperature.
'Coldwind' Air Infiltration Sensible heat gain computation
No Green Wash!
Joule, Kelvin, Newton, Rankine and Watt. 'Pillars' of our industry.
A Ton of Refrigeration explained.
Viscosity explained (simply!).
A brief description of heat energy. (printable pdf file)
Newton's Three Laws of Motion
A simple refrigeration system explained. (printable pdf file)
An example of how latent heat and specific heat works. (printable pdf file)
Terminology of a simple refrigeration system by Mistral Associates. (printable pdf file)
Methodology of Mistral Heat Load Calculation. (on request)
Refrigerant Phase-out Timetable.
Carbon isn't the bad guy!
The information appearing in these pages has been provided freely and in good faith with the intention of helping the intended reader. No warranty or guarantee can be provided as to accuracy and no responsibility can or will be accepted by the publishers for the consequences of its use. Reproduction is accepted by the publishers providing permission is first obtained and acknowledgement of copyright is always simultaneously stated. Anyone able to Demonstrate or prove that they have suitable qualification or experience is welcome to contact Mistral Associates with advice for corrections or with recommendations for improvement (we do not guarantee that we will take any notice however!).
Mistral's commitment:
Bringing benefits of computerisation to our RAC industry - without the commonly associated problems.