10223 Industrial Commercial and Institutional Applications

In industrial applications, steam turbines may drive an electric generator or equipment such as boiler feedwater pumps, process pumps, air compressors, or refrigeration chillers. Turbines used as industrial drivers are almost always a single casing machine, either single stage or multistage. They can be either condensing or noncondensing depending on steam conditions and the value of the steam. Steam turbines can operate at a single speed to drive an electric generator or operate over a speed range to drive a refrigeration compressor.

For noncondensing applications and load-following applications, steam is exhausted from the turbine at a pressure and temperature sufficient for the CHP heating application. Although back-pressure turbines are less efficient than condensing turbines, they also are less expensive and do not require a surface condenser. In these turbines, a downstream process actually does the condensing to drive the cycle. These turbines can operate over a wide pressure range (typically between 5 and 150 psig) depending on the process requirements and exhaust steam. Small turbines can be used to replace pressure-reducing values (PRV) — a very cost-effective application which converts normally wasted energy into valuable electricity. The PRV replacement is applied mainly in institutional or industrial settings where high-pressure steam is available and low-pressure steam is needed for process or space heating.

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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