Low-Carbon Economic Dispatch of Energy Distribution Network in Synthetic Ammonia Park Considering Hydrogen Production by Water Electrolysis

doi:10.16183/j.cnki.jsjtu.2024.010

Abstract

Abstract:

As a typical chemical industrial park, the coal to hydrogen ammonia synthesis park relies on fossil fuels such as coal, resulting in huge carbon emissions and difficulties in green and low-carbon transformation. As a clean and nonpolluting hydrogen production method, hydrogen production by water electrolysis has been developing quickly in recent years,which provides a probability for low-carbon operation of hydrogen to ammonia chemical industry parks. In this paper, a low-carbon operation framework of the energy distribution network in the synthetic ammonia park is proposed. Taking the traditional coal to hydrogen ammonia synthesis park as an example, the roof photovoltaic, electric energy storage, and hydrogen system are introduced to construct the coal-electricity-hydrogen-heat coupling energy distribution network in the chemical industry park based on coal to hydrogen and hydrogen to ammonia equipment, the original power system, and heating system, so as to realize the multi-energy complementary operation and reduce the carbon emission. Then, a model including hydrogen source, hydrogen load, energy storage system, and heat source is established. The economic dispatch model of the energy distribution network in the chemical industrial park is developed and solved to minimize the operation cost and carbon emission of the park and meet the operational constraints of the park. Finally, the case study shows that the proposed method can effectively reduce the operation cost and carbon emission of the park.

Key words: synthetic ammonia park, energy distribution network, hydrogen production by water electrolysis, low carbon operation

CLC Number:

TM732

LI Haoran, SUN Hongbin, XUE Yixun, CHANG Xinyue, SU Jia. Low-Carbon Economic Dispatch of Energy Distribution Network in Synthetic Ammonia Park Considering Hydrogen Production by Water Electrolysis[J]. Journal of Shanghai Jiao Tong University, 2025, 59(11): 1618-1624.

Figures/Tables 9

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参数	数值	参数	数值	参数	数值
η_C	1/7.473	a₁	5500	η_FC/%	40
η_CO₂	44	a₂/(kW·kg^-1)	19	a_h	0.75
η₁/%	98	b₁/kg	500	b_h	0
η₂/%	70	b₂/kW	-32.5	η_G/%	70

时段	区段划分	价格/[元·(kW·h)^-1]
峰	11:00—15:00, 19:00—22:00	1.08
平	8:00—10:00, 16:00—18:00	0.73
谷	1:00—7:00, 23:00—24:00	0.36

电解槽规模/kW	购电成本/元	用煤成本/元	总成本/ 元	碳排放量/kg
200	84475	40232	124707	263203
400	85123	39985	125108	261589
600	85771	39739	125510	259976
800	86419	39492	125911	258363
1 000	87067	39245	126313	256749
1 200	87715	38999	126714	255136