Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during Transportation
The aim of the work is to study the efficiency of steam turbine CHPPs in heat-supply systems, taking into account changes in the temperature of delivery water during transportation for vari-ous initial and extended heating regulation schedules. To achieve this goal, the following tasks were solved:...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of Moldova
2023-08-01
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| Series: | Problems of the Regional Energetics |
| Subjects: | |
| Online Access: | https://journal.ie.asm.md/assets/files/06_03_59_2023.pdf |
| _version_ | 1827868234775265280 |
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| author | Suvorov D.M. Tatarinova N.V. Suvorov D.M., Tatarinova N.V., Lyskova |
| author_facet | Suvorov D.M. Tatarinova N.V. Suvorov D.M., Tatarinova N.V., Lyskova |
| author_sort | Suvorov D.M. |
| collection | DOAJ |
| description | The aim of the work is to study the efficiency of steam turbine CHPPs in heat-supply systems, taking into account changes in the temperature of delivery water during transportation for vari-ous initial and extended heating regulation schedules. To achieve this goal, the following tasks were solved: calculation of the dependences of the delivery water cooling in the supply and re-turn pipelines on the air temperature, construction of temperature and flow rate schedules of de-livery water adjusted for heat losses during transportation, calculation of energy efficiency indi-cators for the operation of a model CHPP with various options for correcting schedules of deliv-ery water. The most significant results are the following. Firstly, for the first time the method of the degree-by-degree calculation of heat losses during transportation and their distribution be-tween pipelines of heating networks was used. Secondly, the dependences of the delivery water cooling in these pipelines on the outside air temperature are calculated. Thirdly, it has been es-tablished that the specific reference fuel consumption for electricity supply significantly de-creases when switching to more efficient temperature schedules for heating regulation, but changes slightly when switching from natural regulation by flow rate to regulation by the tem-perature of the delivery water. The significance of the obtained results lies in the possibility of their use for an accurate assessment of the efficiency of heat supply systems with different heat-ing control schedules and for determining the feasibility of correcting temperature schedules in order to take into account the cooling of delivery water during transportation. |
| first_indexed | 2024-03-12T15:28:00Z |
| format | Article |
| id | doaj.art-d93261f3ec5d46a8b2b611abb6b0a4ea |
| institution | Directory Open Access Journal |
| issn | 1857-0070 |
| language | English |
| last_indexed | 2024-03-12T15:28:00Z |
| publishDate | 2023-08-01 |
| publisher | Academy of Sciences of Moldova |
| record_format | Article |
| series | Problems of the Regional Energetics |
| spelling | doaj.art-d93261f3ec5d46a8b2b611abb6b0a4ea2023-08-10T11:43:08ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702023-08-01593547010.52254/1857-0070.2023.3-59.06Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during TransportationSuvorov D.M.0Tatarinova N.V.1 Suvorov D.M., Tatarinova N.V., Lyskova 2Vyatka State University Kirov, Russian FederationVyatka State University Kirov, Russian FederationVyatka State University Kirov, Russian FederationThe aim of the work is to study the efficiency of steam turbine CHPPs in heat-supply systems, taking into account changes in the temperature of delivery water during transportation for vari-ous initial and extended heating regulation schedules. To achieve this goal, the following tasks were solved: calculation of the dependences of the delivery water cooling in the supply and re-turn pipelines on the air temperature, construction of temperature and flow rate schedules of de-livery water adjusted for heat losses during transportation, calculation of energy efficiency indi-cators for the operation of a model CHPP with various options for correcting schedules of deliv-ery water. The most significant results are the following. Firstly, for the first time the method of the degree-by-degree calculation of heat losses during transportation and their distribution be-tween pipelines of heating networks was used. Secondly, the dependences of the delivery water cooling in these pipelines on the outside air temperature are calculated. Thirdly, it has been es-tablished that the specific reference fuel consumption for electricity supply significantly de-creases when switching to more efficient temperature schedules for heating regulation, but changes slightly when switching from natural regulation by flow rate to regulation by the tem-perature of the delivery water. The significance of the obtained results lies in the possibility of their use for an accurate assessment of the efficiency of heat supply systems with different heat-ing control schedules and for determining the feasibility of correcting temperature schedules in order to take into account the cooling of delivery water during transportation.https://journal.ie.asm.md/assets/files/06_03_59_2023.pdfheat-supply systemheating loadheat-transfer agent transportationtemperature schedulechppdelivery water cooling. |
| spellingShingle | Suvorov D.M. Tatarinova N.V. Suvorov D.M., Tatarinova N.V., Lyskova Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during Transportation Problems of the Regional Energetics heat-supply system heating load heat-transfer agent transportation temperature schedule chpp delivery water cooling. |
| title | Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during Transportation |
| title_full | Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during Transportation |
| title_fullStr | Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during Transportation |
| title_full_unstemmed | Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during Transportation |
| title_short | Study of the Efficiency of Heat-Supply Systems with Steam Turbine CHP Plants, Taking into Account Changes in the Temperature of the Delivery Water during Transportation |
| title_sort | study of the efficiency of heat supply systems with steam turbine chp plants taking into account changes in the temperature of the delivery water during transportation |
| topic | heat-supply system heating load heat-transfer agent transportation temperature schedule chpp delivery water cooling. |
| url | https://journal.ie.asm.md/assets/files/06_03_59_2023.pdf |
| work_keys_str_mv | AT suvorovdm studyoftheefficiencyofheatsupplysystemswithsteamturbinechpplantstakingintoaccountchangesinthetemperatureofthedeliverywaterduringtransportation AT tatarinovanv studyoftheefficiencyofheatsupplysystemswithsteamturbinechpplantstakingintoaccountchangesinthetemperatureofthedeliverywaterduringtransportation AT suvorovdmtatarinovanvlyskova studyoftheefficiencyofheatsupplysystemswithsteamturbinechpplantstakingintoaccountchangesinthetemperatureofthedeliverywaterduringtransportation |