The Effectiveness of Extended Schedules of Heating Regulation at CHP Plants with Decreasing Normative Design Temperature of the Supply Water
The aim of the work is a computational study of the effectiveness of the extended schedules of heating regulation at steam turbine CHPPs with a decrease in the normative design temperature of the supply water. The study was carried out on adequate mathematical models of CHP tur-bines and heat supply...
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Academy of Sciences of Moldova
2021
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oai:doaj.org-article:b4df44403e984ddf97dfab96b625af4d2021-11-26T15:37:16ZThe Effectiveness of Extended Schedules of Heating Regulation at CHP Plants with Decreasing Normative Design Temperature of the Supply Water10.52254/1857-0070.2021.4-52.101857-0070https://doaj.org/article/b4df44403e984ddf97dfab96b625af4d2021-11-01T00:00:00Zhttps://journal.ie.asm.md/assets/files/10_04_52_2021.pdfhttps://doaj.org/toc/1857-0070The aim of the work is a computational study of the effectiveness of the extended schedules of heating regulation at steam turbine CHPPs with a decrease in the normative design temperature of the supply water. The study was carried out on adequate mathematical models of CHP tur-bines and heat supply systems, considering heat pipelines' actual diameters and lengths. The main energy efficiency indicator is the specific reference fuel consumption for electricity sup-ply, calculated under comparable conditions for the operating modes of turbine plants and the load of the heat supply system. The study took into account the electricity consumption for the drive of network pumps, standard heat losses in heating networks and the electricity generation for the heat consumption of CHPPs. The study results allowed for the first time to determine the integral indicators of the energy efficiency of work during the transition of CHPPs from the normative design ones to the temperature schedules reduced by the temperature of the supply water. At the same time, the calculations revealed the limitations on the parameters of the extended schedules of regulation when transitioning to reduced temperature schedules. The most important results of the work should also be attributed to the determination of the optimal schedules of the temperature of the supply water for different values of the district heating coef-ficient of the CHPP. The results obtained are essential for assessing the efficiency of the transi-tion of heat supply systems to reduced supply water's design temperatures when using modern heating regulation schedules.Suvorov D.M.Tatarinova N.V.Lyskova E.A.Academy of Sciences of Moldovaarticleheat supply systemheating loadheating regulationtemperature schedulechppspecific reference fuel consumptiondelivery water.Electrical engineering. Electronics. Nuclear engineeringTK1-9971Production of electric energy or power. Powerplants. Central stationsTK1001-1841Renewable energy sourcesTJ807-830ENRORUProblems of the Regional Energetics, Vol 4(52), Iss 4, Pp 99-114 (2021) |
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DOAJ |
| collection |
DOAJ |
| language |
EN RO RU |
| topic |
heat supply system heating load heating regulation temperature schedule chpp specific reference fuel consumption delivery water. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830 |
| spellingShingle |
heat supply system heating load heating regulation temperature schedule chpp specific reference fuel consumption delivery water. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830 Suvorov D.M. Tatarinova N.V. Lyskova E.A. The Effectiveness of Extended Schedules of Heating Regulation at CHP Plants with Decreasing Normative Design Temperature of the Supply Water |
| description |
The aim of the work is a computational study of the effectiveness of the extended schedules of heating regulation at steam turbine CHPPs with a decrease in the normative design temperature of the supply water. The study was carried out on adequate mathematical models of CHP tur-bines and heat supply systems, considering heat pipelines' actual diameters and lengths. The main energy efficiency indicator is the specific reference fuel consumption for electricity sup-ply, calculated under comparable conditions for the operating modes of turbine plants and the load of the heat supply system. The study took into account the electricity consumption for the drive of network pumps, standard heat losses in heating networks and the electricity generation for the heat consumption of CHPPs. The study results allowed for the first time to determine the integral indicators of the energy efficiency of work during the transition of CHPPs from the normative design ones to the temperature schedules reduced by the temperature of the supply water. At the same time, the calculations revealed the limitations on the parameters of the extended schedules of regulation when transitioning to reduced temperature schedules. The most important results of the work should also be attributed to the determination of the optimal schedules of the temperature of the supply water for different values of the district heating coef-ficient of the CHPP. The results obtained are essential for assessing the efficiency of the transi-tion of heat supply systems to reduced supply water's design temperatures when using modern heating regulation schedules. |
| format |
article |
| author |
Suvorov D.M. Tatarinova N.V. Lyskova E.A. |
| author_facet |
Suvorov D.M. Tatarinova N.V. Lyskova E.A. |
| author_sort |
Suvorov D.M. |
| title |
The Effectiveness of Extended Schedules of Heating Regulation at CHP Plants with Decreasing Normative Design Temperature of the Supply Water |
| title_short |
The Effectiveness of Extended Schedules of Heating Regulation at CHP Plants with Decreasing Normative Design Temperature of the Supply Water |
| title_full |
The Effectiveness of Extended Schedules of Heating Regulation at CHP Plants with Decreasing Normative Design Temperature of the Supply Water |
| title_fullStr |
The Effectiveness of Extended Schedules of Heating Regulation at CHP Plants with Decreasing Normative Design Temperature of the Supply Water |
| title_full_unstemmed |
The Effectiveness of Extended Schedules of Heating Regulation at CHP Plants with Decreasing Normative Design Temperature of the Supply Water |
| title_sort |
effectiveness of extended schedules of heating regulation at chp plants with decreasing normative design temperature of the supply water |
| publisher |
Academy of Sciences of Moldova |
| publishDate |
2021 |
| url |
https://doaj.org/article/b4df44403e984ddf97dfab96b625af4d |
| work_keys_str_mv |
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