Evaluation of Energy Saving and Environmental Protection Effect of Heat Pump for Heating Make-up water for Industrial Boilers
Email tác giả liên hệ:
vkquoc@hcmut.edu.vnDOI:
https://doi.org/10.54644/jte.2024.1705Từ khóa:
Heat pump, Energy saving, CO2 emissions, Feed water, Boiler, COPTóm tắt
This paper investigates the integration of heat pumps for heating boiler feedwater and evaluates the impacts of feedwater temperature and condensate recovery rates on fuel consumption, energy efficiency, and CO2 emissions. The results show that using heat pumps significantly reduces boiler fuel consumption, especially when the feedwater temperature increases and the condensate recovery rate is high. In terms of energy, the cost of heat pumps for water heating is significantly lower than that of fuel combustion. With a boiler without condensate recovery, the maximum cost of heat pumps is only about 50% of that of fuel combustion. Economically, heat pumps provide substantial benefits, with maximum cost savings achieved at a water temperature of 75°C. On average, a 10% reduction in the condensate recovery rate, the cost saved in 1 hour is 2000 VND/ton of steam. Additionally, integrating heat pumps reduces CO2 emissions, particularly in boilers without condensate recovery, with the highest emission reduction reaching 17.8 kgCO2/ton of steam. These findings demonstrate that using heat pumps is not only energy-efficient and cost-effective but also contributes to environmental protection by reducing greenhouse gas emissions.
Tải xuống: 0
Tài liệu tham khảo
Y. Xu, Z. Guo, and C. Yuan, "Feasibility study of an integrated air source heat pump water heater/chillers and exhaust gas boiler heating system for swimming pool on luxury cruise ship," Energy Reports, vol. 8, pp. 1260-1282, 2022. DOI: https://doi.org/10.1016/j.egyr.2021.12.037
Y. Xu, C. Zhan, A. R. Jensen, M. Gao, W. Kong, and J. Fan, "Thermo-economic analysis of a solar district heating plant with an air-to-water heat pump," Renewable Energy, vol. 237, p. 121490, 2024. DOI: https://doi.org/10.1016/j.renene.2024.121490
Y. Xu, J. Wang, X. Shen, Z. Sun, X. Wang, and X. Han, "Thermodynamic analyses and performance improvement on a novel cascade-coupling-heating heat pump system for high efficiency hot water production," Energy Conversion and Management, vol. 293, p. 117448, 2023. DOI: https://doi.org/10.1016/j.enconman.2023.117448
B. Zhan et al., "Experimental investigation of high-temperature heating in open-loop air cycle heat pump system utilizing compressed gas waste energy recovery," Applied Thermal Engineering, vol. 250, p. 123464, 2024. DOI: https://doi.org/10.1016/j.applthermaleng.2024.123464
H. U. Choi, Y. B. Kim, C. H. Son, J. I. Yoon, and K. H. Choi, "Experimental study on the performance of heat pump water heating system coupled with air type PV/T collector," Applied Thermal Engineering, vol. 178, p. 115427, 2020. DOI: https://doi.org/10.1016/j.applthermaleng.2020.115427
X. Wang et al., "Energy saving and economic analysis of a novel PV/T coupled multi-source heat pump heating system with phase change storage: A case study in cold zone in China," Energy Conversion and Management, vol. 312, p. 118574, 2024. DOI: https://doi.org/10.1016/j.enconman.2024.118574
J. Li, X. Sun, J. Zhu, E. G. Karkon, and V. Novakovic, "Performance comparison of air source heat pump coupling with solar evacuated tube water heater and that with micro heat pipe PV/T," Energy, vol. 300, p. 131600, 2024. DOI: https://doi.org/10.1016/j.energy.2024.131600
S. Sarco and S. S. Limited, The Steam and Condensate Loop. Spirax-Sarco, 2007.
Tải xuống
Đã Xuất bản
Cách trích dẫn
Giấy phép
Bản quyền (c) 2024 Tạp chí Khoa học Giáo dục Kỹ Thuật
Tác phẩm này được cấp phép theo Giấy phép quốc tế Creative Commons Attribution-NonCommercial 4.0 .
Bản quyền thuộc về JTE.
