Search results
How to calculate steam requirements for flow and non-flow applications. Including warm-up, heat losses and running loads. The optimum design for a steam system will largely depend on whether the steam consumption rate has been accurately established.
- Steam Consumption of Heat Exchangers
Steam consumption calculations for heat exchangers. Shell...
- Steam Consumption of Plant Items
Although some heat is absorbed by the product, the net...
- Steam Consumption of Heat Exchangers
- What Is Steam Consumption in A pipe?
- Steam Consumption in Steam Mains
- What Is Warm-Up Load ?
- What Is Process Plant Running load?
- How to Warm-Up A System?
Steam consumed and steam utilized at the application point are not the same. Typically, steam generated in a steam boilerexceeds the amount needed at the point of use. The difference in steam consumption and steam utilization is due to: 1. Steam condensation when it travels on its way to point of use mainly due to exposed surfaces. 2. Leakages (if ...
Steam consumption within the pipe system needs to be judiciously monitored and controlled. The rate of condensation of the steam in the steam piping network depends upon the type of load (i.e. warm-up load or running load). The rate of condensation of steam needs to be taken into account for sizing the steam traps, and also in finalizing the boiler...
During the plant start-up after a long time or from cold, then the steam is required to heat the system uniformly to bring the system close to the normal working temperature of the system. The ‘warm-up load’ is the steam load which is associated with the steam consumption during the start-up of the plant. This can be either from the cold shut down,...
Process plant running load is the steam load which is related to the normal (full load) continuous load of the plant. The rate of condensation of steam during the full load running a load of the plant is minimum.
Uniform and slow system warm-up can be achieved by a small by-pass valve in parallel to the main line isolation valve. The time required to warm up the pipe network decides the warm-up (bypass) valve size. This valve can be a manual or automatic type depending on the user/client. Avoid using the main valve for warm-up as it is designed for full flo...
Calculation of consumption. When determining the necessary steam output of a steam boiler system, all steam consumers in the steam network must ideally be recorded in a table with their minimum and maximum output and then the output of all consumers must be added up.
Steam consumption calculations for heat exchangers. Shell and tube heat exchangers and plate heat exchangers are typical examples of flow type applications. Therefore, when determining the steam consumption for these applications, Equation 2.6.5 should be used.
Calculating the amount of steam in non-flow batch and continuous flow heating processes. In general steam heating is used to. change a product or fluid temperature. maintain a product or fluid temperature. A benefit with steam is the large amount of heat energy that can be transferred.
Although some heat is absorbed by the product, the net result is that the steam consumption is much the same whether the plant is working or standing idle, although fluctuations will occur during opening and closing. Steam consumption can sometimes be estimated using the basic heat transfer Equation 2.5.3:
In this BestPractices Steam Technical Brief, we will show how to calculate the steam cost at different process operating rates, and demonstrate through an illustrative example that the only way to do this accurately is through steam-system modeling.
