scholarly journals Effect of the distribution density of biomass combined heat and power plant networks on total energy utilization efficiency

2018 ◽  
Vol 10 (6) ◽  
pp. 065902 ◽  
Author(s):  
Yifei Zhang ◽  
Jian Kang
Keyword(s):  
Power Plant ◽  
Total Energy ◽  
Distribution Density ◽  
Combined Heat And Power ◽  
Energy Utilization ◽  
Utilization Efficiency

scholarly journals Steam-Water Modelling and the Coal-Saving Scheduling Strategy of Combined Heat and Power Systems

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 141
Author(s):  
Junshan Guo ◽  
Wei Zheng ◽  
Zhuang Cong ◽  
Panfeng Shang ◽  
Congyu Wang ◽  
...  
Keyword(s):  
Heat Load ◽  
Large Scale ◽  
Combined Heat And Power ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Adaptive Mutation ◽  
Small Scale ◽  
Coal Consumption ◽  
Scheduling Strategy ◽  
Power Load

China aims to peak carbon emissions by 2030. As a result, small-scale coal-fired combined heat and power (CHP) units and self-provided units are gradually shut down, and large-scale coal-fired CHP units are a solution to undertake the industrial heat loads. From the perspective of the industrial heat load allocation during the non-heating season, the problems regarding the coal-saving scheduling strategy of coal-fired CHP units are addressed. The steam-water equations of CHP units are established to analyze the heat-power coupling characteristics. The energy utilization efficiency, exergy efficiency and the coal consumption are analyzed. The optimization model of saving coal consumption is established and the adaptive mutation particle swarm optimization (AMPSO) is introduced to solve the above model. The 330 MW coal-fired CHP unit is taken as an example, and the results show that for the constant main flow rate, each increase of 1 t/h industrial steam extraction will reduce the power output by about 0.321 MW. The energy utilization efficiency and the exergy are mainly influenced by industrial steam supply and the power load, respectively. For the CHP system with two parallel CHP units, the unequal allocation of industrial heat load between two units saves more coal than equal allocation. The coal consumption can be reduced when the unit with lower power load undertakes more industrial heat load. In the typical day, the total coal consumption after optimization is 3203.92 tons, a decrease of 14.66 tons compared to the optimization before. The two CHP units in the case can benefit about 5,612,700 CHY extra in one year.

Approximate Analyses of Feed and District Heating Cycles for Steam Combined Heat and Power Plant

1987 ◽  
Vol 201 (3) ◽  
pp. 193-200 ◽  
Author(s):  
J H Horlock
Keyword(s):  
Power Plant ◽  
District Heating ◽  
Low Pressure ◽  
Combined Heat And Power ◽  
Energy Utilization ◽  
Steam Extraction ◽  
Saturated Water ◽  
The Difference ◽  
Number Of Cycles ◽  
Two Parameters

An assumption for turbine expansion lines originally made by Salisbury and Haywood (that the difference between local steam enthalpy and the enthalpy of saturated water at the same pressure is constant throughout the expansion) is used in approximate analyses of steam combined heat and power plant. Thermal efficiencies and energy utilization factors are derived for a number of cycles with steam extraction for feed heating and for district heating. Calculations of these two parameters are presented for relatively low pressure cycles.

Study of Efficiency Power Plant Based on Benefit Sharing Model

2013 ◽  
Vol 291-294 ◽  
pp. 2358-2361
Author(s):  
Hong Yan Liu ◽  
Shi Zheng Liu
Keyword(s):  
Power Plant ◽  
Rapid Development ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Benefit Sharing ◽  
Power Construction ◽  
New Energy ◽  
Increasing Demand ◽  
Saving Mode ◽  
Energy Shortage

With the rapid development of Chinese economic, environmental pollution, energy shortages and other issues become increasingly prominent. Relying solely on the power construction is difficult to meet the country's rapidly increasing demand for electricity. Energy conservation, rational and efficient use of energy is the effective initiatives to protect the environment and ease the energy shortage. Efficiency Power Plant (EPP) can improve the energy utilization efficiency of the whole society. It is the most new energy-saving mode, many issues need to coordinate and handle during its implementation. Benefit sharing is a key prerequisite for enterprise to implement the EPP. In this paper, we integrate all aspects of EPP’s risk factors during its implementation to build a benefit sharing model of Efficiency Power Plant. And prove the feasibility and accuracy.

Improving the Energy Efficiency and Environmental Friendliness of a Combined Heat and Power Plant through the Use of Heat Absorption Transformers

Vestnik MEI ◽  
2020 ◽  
Vol 4 (4) ◽  
pp. 89-97
Author(s):  
Yuriy V. Yavorovsky ◽  
◽  
I′ldar A. Sultanguzin ◽  
Aleksey I. Bartenev ◽  
Stanislava A. Prishchepova ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Power Plant ◽  
Combined Heat And Power ◽  
Heat Absorption ◽  
Environmental Friendliness

Analysis of gas turbine combined heat and power system for carbon capture installation of coal-fired power plant

Energy ◽  
2012 ◽  
Vol 45 (1) ◽  
pp. 125-133 ◽  
Author(s):  
Tadeusz Chmielniak ◽  
Sebastian Lepszy ◽  
Katarzyna Wójcik
Keyword(s):  
Power Plant ◽  
Power System ◽  
Gas Turbine ◽  
Carbon Capture ◽  
Combined Heat And Power
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