Heating
Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more
Air Heating Systems
Using air to heat buildings - temperature rise diagram
ASME - International Boiler and Pressure Vessel Code
The International Boiler and Pressure Vessel Code establishes rules of safety governing the design, fabrication, and inspection of boilers and pressure vessels, and nuclear power plant components during construction
Building Elements - Heat Loss and Thermal Resistivity
Thermal resistance in common building elements - like walls, floors and roofs above and below the ground
Chimney and Fireplace Sizing
Chimneys and fireplaces for fireplaces and stoves burning wood or coal as fuel
Classification of Coal
Classification of coal based on volatile matter and cooking power of clean material
Classification of Gas Oil
Classification of gas oil based on BS 2869 - Specification for fuel oils for agricultural, domestic and industrial engines and boilers
Classifications of Boilers
Classification of boilers according the ASME Boiler and Pressure Vessel Code
Classifications of Hot-Water Heating Systems
Hot-water heating systems can be classified by temperature and pressure
Combustion of Wood - Heat Values
Firewood and combustion of wood heat values - for species like Pine, Elm, Hickory and more
Convective Air Flow from a Single Heat Source
Calculate the vertical air flow and air velocity generated by a single heat source
Convective Air Flow from Typical Heat Sources
Convective air flow from typical heat sources - like people, computers, radiators and more
Convective Heat Transmission - Air Velocity and Air Flow Volume
A hot or cold vertical surface generates vertical air flow - air velocity and volume flow calculator
Copper Tubes - Heat Carrying Capacities
Hot water heat carrying capacity for copper tubes type L
Design of Hot Water Heating Systems
Gravity and Forced Heating Systems
District Heating - Temperature and Heat Capacity
Water temperature and heating capacity
Dowtherm A
Physical properties of Dowtherm A
Equivalent Length Method - Calculating Minor Pressure Loss in Piping Systems
Pressure loss in piping systems by using the Equivalent Pipe Length Method
Fittings and Minor Pressure Loss
Minor pressure loss for fittings in piping heating systems
Fluid Heat Transfer Coefficients - Heat Exchanger Surface Combinations
Average overall heat transmission coefficients for some common fluids and surface combinations as Water to Air, Water to Water, Air to Air, Steam to Water and more
Gravity Heating Systems
The density difference between hot and cold water is the circulating force in self circulating heating systems
Greenhouse Pipes - Heat Emission
Heat loss from steam and hot water pipes - typical used in greenhouses
Greenhouse Temperatures
Typical greenhouse temperatures
Greenhouses - Heat Required to Maintaining Temperature
Heat required to maintain a greenhouse temperature
Heat Emission from Pipes Submerged in Oil or Fat
Heat emission from steam or water heating pipes submerged in oil or fat - forced and natural circulation
Heat Emission from Pipes Submerged in Water
Heat emision from steam or water heating pipes submerged in water - assisted (forced) or natural circulation
Heat Emission from Radiators
Calculate heat emission from column and panel radiators
Heat Emission from Radiators and Heating Panels
Heat emission from radiator and heating panels depends on temperature difference between radiator and surrounding air
Heat Loss from Buildings
Overall heat transfer loss from buildings - transmission, ventilation and infiltration
Heat Loss from Oil Filled Tanks
Heat loss from insulated and uninsulated, sheltered and exposed heated oil tanks
Heat Loss from Oil filled Tanks and Pipe Lines
Heat loss from insulated and non insulated sheltered and exposed oil tanks and pipes
Heat Loss from Open Water Tanks
Due to evaporation heat loss from open water tank as a swimming pools may be considerable
Heat Pumps - Performance and Efficiency Ratings
Rating the performance and efficiency of heat pumps
Heat, Work and Energy
Heat, work and energy tutorial - essentials as specific heat
Heating Capacity - Steam Radiators and Convectors
Steam radiators and steam convectors - heating capacities and temperature coefficients
Heating Systems Flow Rates
Calculate heating systems flow rates
Hot Water Boiler Circulation Rates
Boiler power and water flow - Imperial and SI-units
Hot Water Heating System - Design Procedure
Hot water heating system design procedure - heat loss, boiler rating, heater units and more
Hot Water Heating System - Flow Temperature vs. Outside Temperature
Seasonal effects on hot-water heating systems flow temperatures
Hot Water Heating Systems - Steel Pipes Pressure Loss Nomogram
Steel pipes in hot water heating systems - pressure loss nomogram
HVAC Diagram - Online Drawing
Draw HVAC diagrams - Online with the Google Drive drawing tool
Indoor Design Conditions for Industrial Products and Production Processes
Recommended indoor temperature and humidity for some common industrial products and production processes
Indoor Design Temperatures
Recommended indoor temperatures summer and winter
Indoor Relative Humidity versus Outdoor Temperature and Relative Humidity
Indoor relative humidity versus outdoor temperature and relative humidity
Infiltration - Heat Loss from Buildings
Estimated infiltration heat loss from buildings
Lights and Power Installed
Light power in common types of buildings and rooms
Online Design of Hot Water Heating Systems - Imperial Units
Online design tool for hot water heating systems
Online Design of Hot Water Heating Systems - Metric Units
Online design tool for hot water heating systems
Outdoor Temperature - and Hot Water Heating Temperatures
Adapting hot water heating temperatures to outdoor temperature allows modulating valves to operate in design range
Outdoor Temperature and Relative Humidity - US Winter and Summer Conditions
Outdoor summer and winter design temperature and relative humidity in US states and cities
Resistance and Fittings Equivalent Length in Hot Water Systems
Equivalent length of fittings like bends, returns, tees and valves in hot water heating systems - equivalent length in feet and meter
Safety Relief Valve Capacity
Maximum free air relief capacity of safety valves
Safety Valve Standards
An survey of international safety valve standards. The most common used standards in Germany, UK, USA, France, Japan, Australia and Europe
Safety Valves in Heating Systems
Safety valves with boilers 275 to 1500 kW
Sizing Hot Water Expansion Tanks
Hot water expansion volume in open, closed and diaphragm tanks
Sizing of Closed Expansion Tanks
Sizing of low temperature closed expansion tanks
Sizing of Diaphragm Expansion Tanks
Low temperature diaphragm expansion tank sizing - calculate tank volume and acceptance volume
Sizing Swimming Pool Heaters
Calculate outdoor swimming pool heaters
Snow Melting Systems
Sizing snow melting systems - water and antifreeze
Specific Heat of Food and Foodstuff
Specific heat of common food and foodstuff like apples, bass, beef, pork and many more
Standard enthalpy of formation, Gibbs energy of formation, entropy and molar heat capacity of organic substances
The standard enthalpy of formation, Gibbs energy of formation, entropy and molar heat capacity are tabulated for more than hundred organic substances.
Static Pressure in a HVAC System
A static pressure is required in a HVAC system to keep the water in the highest levels of teh system
Transmission Heat Loss through Building Elements
Heat loss through common building elements due to transmission, R-values and U-values - imperial and SI units
Units of Heat - BTU, Calorie and Joule
The most common units of heat are BTU - British Thermal Unit, Calorie and Joule
Volumetric - or Cubic Thermal Expansion
Volumetric temperature expansion with online calculator
Windows - Inside Condensation
Outside temperature, inside humidity and water condensation on the inside of glass windows surfaces
