The difference in steam consumption and steam utilization is due to: Steam condensation when it travels on its way to point of use mainly due to exposed surfaces. Modern steam boilers create easily utilized energy for many heating, processing, and mechanical and electrical power-generation applications. The following table is prepared to calculate the steam consumption of various processes … Energy from motors (pumps, fans, etc.) Using the Steam Property Calculator, properties are determined using Steam Pressure and the selected second parameter (Temperature, Specific Enthalpy, Specific Entropy, or Quality). The Specific Enthalpy is then multiplied by the Mass Flow to get the Energy Flow: Using the calculated feedwater mass flow and blowdown rate: Using the Steam Property Calculator, properties are determined using Steam Pressure and Quality = 0 (Saturated Liquid). They can derive their incoming energy from many types of fuels: electricity, co-generation, sunlight, nuclear and waste heat from other processes. The Specific Enthalpy is then multiplied by the Mass Flow to get the Energy Flow: … Using the Steam Property Calculator, properties are determined using Steam Pressure and the selected second parameter (Temperature, Specific Enthalpy, Specific Entropy, or Quality). Steam, Boiler, and Blowdown Pressure are the same. Version: v0.9 - Build Date: 3/17/2015. are not considered. (Saturated Liquid). Being able to calculate boiler steam flows from any of the parameters surrounding a boiler, including boiler horsepower, kilowatts, fuel-flow rates, f… Boiler and fuel types are not considered. Blowdown Rate is the % of incoming feedwater mass flow rate that leaves the boiler as a saturated liquid at boiler pressure. The Specific Enthalpy is then multiplied by the Mass Flow to get the Energy Flow: Deaerator provides feedwater near the boiling temperature for the deaerator's set operating pressure. | U.S. Department of Energy | USA.gov Normally steam consumed or generated in a steam boiler is more than what is required for use at the point of application. The Specific Enthalpy is then multiplied by the Mass Flow to get the Energy Flow: The feedwater flow rate can be calculated from steam mass flow and blowdown rate: Using the Steam Property Calculator, properties are determined using Deaerator Pressure and Quality = 0 (Saturated Liquid). Combustion Efficiency is the % of fuel energy that is directly added to the feedwater and not otherwise lost or used. Does not include any evaluation of any complex boiler configurations or fluctuations in operation. Contacts | Web Site Policies