HVAC Systems
Heating, ventilation and air conditioning systems - design and dimensions
• Air Conditioning
Air Conditioning systems - heating, cooling and dehumidification of indoor air for thermal comfort
• Heating
Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more
• Ventilation
Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more
• Noise and Attenuation
Noise is usually defined as unwanted sound - noise, noise generation, silencers and attenuation in HVAC systems
Acoustic Calculation of Ventilation Systems
Procedure for acoustic noise calculation of ventilation systems
Air Ducts - Sizing
Air flow and required duct area
Calculating Indoor Temperature and Humidity Loads
Calculating sensible and latent heat from persons, lights, electric equipment, machines, evaporation from water surfaces, polluting fluids and miscellaneous loads
Dehumidification - Removing Moisture from Air
Principles of dehumidifying - cooling, adsorption or absorption
Fuels - Combustion Air and Flue Gases
Combustion air and flue gas for common fuels - coke, oil, wood, natural gas and more
Fuels - Higher and Lower Calorific Values
Higher and lower calorific values (=heating values) for some common fuels - coke, oil, wood, hydrogen and others
Fuels and Chemicals - Autoignition Temperatures
The autoignition point for some common fuels and chemicals butane, coke, hydrogen, petroleum and more
Fuels Exhaust Temperatures
Exhaust and outlet temperatures for some common fuels - natural gas, liquefied petroleum, diesel and more
Heat, Work and Energy
Heat, work and energy tutorial - essentials as specific heat
Humidifying Air with Steam - SI units
Use steam to humidify air
HVAC Abbreviations
Commonly used HVAC abbreviations
HVAC Diagram - Online Drawing
Draw HVAC diagrams - Online with the Google Drive drawing tool
HVAC Terms
Definition of some common HVAC industry terms - absolute humidity, pressure, temperature and more
Maximum Size of Duct - or Pipe - through Steel Joists
K series joists and maximum size of ducts and pipes
Moisture Transport through Building Walls and Roofs
Moisture will flow through a wall or roof if the vapor partial pressure is higher on one of the sides
Natural Gas Consumption
Natural gas consumption for common equipment - like boiling pans, ovens, cookers, kettles and more
Optimal Combustion Process - Fuels and Excess Air
Stable and efficient combustion conditions require correct mixture of fuels and oxygen
Outdoor Temperature and Relative Humidity - US Winter and Summer Conditions
Outdoor summer and winter design temperature and relative humidity in US states and cities
