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Performance Simulation and Benefit Analysis of Ammonia Absorption Cooling and Heating Dual-Supply System Based on Off-Peak Electricity Heat Storage

Author

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  • Shaowu Yin

    (School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
    Beijing Key Laboratory of Energy Saving and Emission Reduction in Metallurgical Industry, University of Science and Technology Beijing, Beijing 100083, China)

  • Yongle Shi

    (School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China)

  • Lige Tong

    (School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
    Beijing Key Laboratory of Energy Saving and Emission Reduction in Metallurgical Industry, University of Science and Technology Beijing, Beijing 100083, China)

  • Li Wang

    (School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
    Beijing Key Laboratory of Energy Saving and Emission Reduction in Metallurgical Industry, University of Science and Technology Beijing, Beijing 100083, China)

  • Yulong Ding

    (College of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK)

Abstract

The energy consumption of urban central heating in northern China is two to four times that in northern Europe and other countries. Beijing has adopted measures, such as ‘coal to gas’ and ‘coal to electricity’, to reduce environmental pollution caused by central heating. Given a peak-to-valley difference in the electricity supply of power plant, which is uneven day and night, this study proposes to store the night-time off-peak electricity in the form of heat energy and drive the ammonia absorption system in the form of steam or hot water during peak or flat electricity. Simulation results of ammonia absorption cooling and heating dual-supply system show that heat source temperature increases, evaporation temperature increases, and cooling water temperature decreases are all beneficial to improve the refrigeration coefficient in the summer cooling condition. In the meantime, heat source temperature increases, evaporation temperature increases, and cooling water temperature decreases are beneficial for increasing the heating coefficient in the winter heating condition. The heating and cooling coefficients of the system are 1.38 and 0.65 in the optimal working condition in winter and summer. Benefit analysis shows that, compared with central heating and cold storage air conditioning, the system can save 576,000 tons of standard coal and 1.417 million tons of carbon dioxide if used in 12% of the cooling and heat supply areas in Beijing. The potential for energy saving and emission reduction is large.

Suggested Citation

  • Shaowu Yin & Yongle Shi & Lige Tong & Li Wang & Yulong Ding, 2019. "Performance Simulation and Benefit Analysis of Ammonia Absorption Cooling and Heating Dual-Supply System Based on Off-Peak Electricity Heat Storage," Energies, MDPI, vol. 12(12), pages 1-11, June.
  • Handle: RePEc:gam:jeners:v:12:y:2019:i:12:p:2298-:d:240293
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    References listed on IDEAS

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    1. Zhang, Qunli & Zhang, Lin & Nie, Jinzhe & Li, Yinlong, 2017. "Techno-economic analysis of air source heat pump applied for space heating in northern China," Applied Energy, Elsevier, vol. 207(C), pages 533-542.
    2. Cai, W.G. & Wu, Y. & Zhong, Y. & Ren, H., 2009. "China building energy consumption: Situation, challenges and corresponding measures," Energy Policy, Elsevier, vol. 37(6), pages 2054-2059, June.
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    Cited by:

    1. Shaowu Yin & Feiyang Xue & Xu Wang & Lige Tong & Li Wang & Yulong Ding, 2020. "Heat Transfer Characteristics of High-Temperature Dusty Flue Gas from Industrial Furnaces in a Granular Bed with Buried Tubes," Energies, MDPI, vol. 13(14), pages 1-12, July.

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