住宅微型热电联产在区域能源网络中的运行性能

Q4 Energy

International Journal of Nuclear Energy Science and Technology Pub Date : 2023-03-28 DOI:10.57237/j.jest.2023.01.004

Wen-zhi Cui, Su Chang, Zong Chen

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引用次数: 0

摘要

为解决微热电联产供需不平衡的问题，以天然气内燃机为动力的住宅微热电联产机组为基础，建立了区域能源网络。计算了哈尔滨某住宅楼典型冬季采暖周的电负荷和热负荷。从能源和经济两个方面分析和评价了m-CHP系统在电力负荷跟随(FEL)和热负荷跟随(FTL)两种运行策略下的性能。结果表明，在超光速模式下运行m-CHP的能量成本降低了10%，并且出售多余能量的收入是在FEL模式下的2.7倍，表明在FEL模式下运行成本更低。此外，与传统的电热分开生产相比，系统在FEL和FTL模式下的净成本降低率分别为13.68%和38.83%。在区域能源网络中运行的微型热电联产比传统的单独发电和供热更有利可图。

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Performance of Residential Micro-CHP Operating in a District Energy Network

: To resolve the problem of the imbalance between micro-Combined Heat and Power (m-CHP) supply and demand, a district energy network has been established based on residential m-CHP units powered by natural gas-fueled internal combustion engine. The electric and thermal loads of a Harbin residential building in a typical winter heating week are calculated. The performance of the m-CHP systems operating in two operation strategies, i.e., Following the Electric Load (FEL) and Following the Thermal Load (FTL), are analyzed and evaluated from both energy and economic aspects. The result shows that the energy cost of the m-CHP is reduced by 10% when operating in FTL mode, and the income from selling excess energy is 2.7 times more than that in FEL mode, indicating lower operation costs in FEL mode. Moreover, compared with the traditional separate production of electricity and heat, the net cost reduction rate of the system in FEL and FTL mode is 13.68% and 38.83%, respectively. Micro-CHP operating in a district energy network is more profitable than traditional separate electricity and heat production.

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来源期刊

International Journal of Nuclear Energy Science and Technology Energy-Nuclear Energy and Engineering

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Today, nuclear reactors generate nearly one quarter of the electricity in nations representing two thirds of humanity, and other nuclear applications are integral to many aspects of the world economy. Nuclear fission remains an important option for meeting energy requirements and maintaining a balanced worldwide energy policy; with major countries expanding nuclear energy"s role and new countries poised to introduce it, the key issue is not whether the use of nuclear technology will grow worldwide, even if public opinion concerning safety, the economics of nuclear power, and waste disposal issues adversely affect the general acceptance of nuclear power, but whether it will grow fast enough to make a decisive contribution to the global imperative of sustainable development.