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

Building Elements - Heat Loss and Thermal Resistivity

Thermal resistance in common building elements - like walls, floors and roofs above and below the ground

Calculating Water Expansion Tanks

Water expansion volume in open, closed and diaphragm expansion tanks

Chimney and Fireplace Sizing

Chimneys and fireplaces for fireplaces and stoves burning wood or coal as fuel

Circulating Force in Gravity Heating Systems

Differential pressure due to difference in density between hot and cold water is the circulating force in a self circulating heating system

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

Convective Air Flow from a single Heat Source

Calculate the vertical air flow and air velocity generated by a single heat source

Convective Heat - Air Velocities and Volume of Air Flows

A hot or cold vertical surface will generate a vertical airflow - calculate air velocity and volume flow

Copper Tube and Heat Carrying Capacity

Hot water heat carrying capacities in copper tubes type L

District Heating - Temperature and Heat Capacities

Temperature and heating capacities of water flows in heating systems

Dowtherm A

Physical properties of Dowtherm A

Equivalent Pipe Length Method - Calculating Minor Pressure Loss in Piping Systems

Calculating pressure loss in piping systems with the Equivalent Pipe Length Method

Fittings and Minor Pressure Loss

Minor pressure loss for fittings in piping heating systems

Flow Rates in Heating Systems

Calculate flow rates in heating systems

Flow Temperatures in Hot-Water Heating Systems

Seasonal effects on flow temperatures in hot-water heating systems

Food and Foodstuff - Specific Heats

Specific heats of some common food and foodstuff as apples, bass, beef, pork and much more

Greenhose Pipes - Heat Emission

Heat from steam and hot water pipes

Greenhouse Temperatures

Typical greenhouse temperatures

Greenhouses - Heat Required to Maintaining Temperature

Heat required to maintain a greenhouse temperature

HVAC Diagram - Online Drawing

Draw HVAC diagrams - Online with the Google Drive drawing tool

Heat Emission from Pipes Submerged in Oil or Fat

Heat emission from steam or water heating pipes submerged in oil or fat - assisted (forced) and natural circulation

Heat Emission from Radiators

Calculating heat emission from column and panel radiators

Heat Emission from Radiators and Heating Panels

Heat emission from a radiator or heating panel depends on the temperature difference between the radiator and the 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 Loss from Pipes Submerged in Water

Heat transmission from steam or water heating pipes or tubes submerged in water - assisted (forced) and natural circulation

Heat Loss through Building Elements due to Transmission

Heat loss through common building elements due to transmission, R-values and U-values - imperial and SI units

Heat Pumps - Performance and Efficiency Ratings

Rating the performance and efficiency of heat pumps

Heat Sources and Convective Air Flow

Convective air flow from heat sources - like people, computers, radiators and more

Heat, Work and Energy

Heat, work and energy tutorial - essentials as specific heat

Heating Systems and Steel Pipes - Pressure Loss Diagram

Steel pipes and tubes - pressure loss diagram for hot water heating systems

Hot Water Boiler Circulation Rates

Boiler power and water flow - Imperial and SI-units

Hot Water Heating Systems - a Design Procedure

A hot water heating system design procedure - heat loss, boiler rating, heater units and more

Hot Water Heating Systems Design

Introduction to Gravity Heating Systems and Forced Heating Systems

Indoor Design Conditions - 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 - Installed Power

Light power in common types of buildings and rooms

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

Overall Heat Transfer Coefficients for some Fluids and Heat Exchanger Surfaces

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

Resistance and Equivalent Length of Fittings

Equivalent length of fittings like bends, returns, tees and valves in hot water heating systems - equivalent length in feet and meter

Safety Relief Valves Capacities

Safety valves and maximum free air relief capacities

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

Boilers 275 to 1500 kW and Safety Valves

Sizing Swimming Pool Heaters

Calculate outdoor swimming pool heaters

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

Snow Melting Systems

Sizing snow melting systems - water and antifreeze

Static Pressure in a HVAC Systems

A static pressure in a HVAC system is required to keep water in the highest levels

Units of Heat - BTU, Calorie and Joule

The most common units of heat are BTU - British Thermal Unit, Calorie and Joule

Volumetric - Cubic - Thermal Expansion

Cubical temperature expansion - online volumetric expansion calculator

Windows - Condensation on Inside Surface

Outside temperature, inside humidity and condensation on inside windows glass surface

Wood Combustion Heat Values

Firewood and combustion heat values - Pine, Elm, Hickory and other species

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Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your SketchUp model with the Engineering ToolBox - SketchUp Extension/Plugin - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

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