Steam consumption of turbine compressors
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We have a compressor with a power rating of 315 KW, and we now want to switch to a steam turbine operating at 2.5 MPa. How much steam is required per hour? Is superheated steam needed?
With a power output of 315 KW, it is now desired to switch to a steam turbine operating at 2.5 MPa; the steam requirement per hour is approximately 5 to 8 T/H for condensing turbines； Back-pressure type, with back pressure at 0. 3Mpa requires approximately 8 to 12 T/H ； Back-pressure type; with a back pressure of 1.0 Mpa, it operates at approximately 15 to 18 T/H. Is superheated steam needed? It is necessary to keep the steam pressure within plus or minus 0. 2Mpa, with a temperature of 250 to 350 degrees.
Thank you for the reply from above. May I ask: from an energy-saving perspective, which method is more cost-effective, the condensing type or the back-pressure type?
If the steam discharged by the unit can be utilized in a balanced manner downstream, a back-pressure type is recommended; otherwise, a condensing type should be chosen.
If a condensing type is chosen, the inlet steam pressure can be kept relatively low. Especially when a factory has low-pressure by-product steam, recycling it enables energy savings and reduced consumption, which holds great economic value!
A condensing turbine can be used; the steam pressure required is relatively low. The 2.8 MPa steam you have chosen can serve as the driving force, and medium-pressure steam is sufficient for use in the plant. The steam he uses up is utilized as by-product steam, achieving rational use of steam. Energy-efficient and cost-effective. In contrast, back-pressure turbines require higher pressures, which in turn demands higher-quality materials for the equipment. Its energy consumption is also high.
The steam must be superheated; you can provide your requirements and parameters to the turbine manufacturer for consultation.
If a condensing turbine is chosen, it should be beneficial to use a lower steam pressure; then, what steam pressure can be achieved if a steam pressure of 3.5 Mpa is used?
How is this calculated? Based on the enthalpy drop of the steam multiplied by the power of the turbine? ? ?
Thank you to bj2050 from floor 5! Question: If a condensing type is selected, what is the minimum required steam pressure at the low-pressure steam inlet? Is saturated steam sufficient?
Such questions can be dealt with in just a few words; definitely don’t get too involved. Be sure to entrust a design firm or a turbine manufacturer to carry out the design. It can’t be clarified or formatted in just a few words.
I’m wondering how the design institute (the main design office that handles the steam balance) calculates the amount of steam required for our centrifugal compressors. I’d like to know if there is any basic formula for this