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首页> 外文期刊>Waste management & research >Feasibility study for retrofitting biogas cogeneration systems to district heating in South Korea
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Feasibility study for retrofitting biogas cogeneration systems to district heating in South Korea

机译：韩国对沼气热电联产系统进行改造以供区域供热的可行性研究

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摘要

A feasibility study was performed to assess the technical and economic merits of retrofitting biogas-based cogeneration systems to district heating networks. Three district heating plants were selected as candidates for accommodating heat recovery from nearby waste treatment stations, where a massive amount of biogas can be produced on a regular basis. The scenario involves constructing cogeneration systems in each waste treatment station and producing electricity and heat. The amounts of biogas production for each station are estimated based on the monthly treatment capacities surveyed over the most recent years. Heat produced by the cogeneration system is first consumed on site by the waste treatment system to keep the operating temperature at a proper level. If surplus heat is available, it will be transported to the nearest district heating plant. The year-round operation of the cogeneration system was simulated to estimate the electricity and heat production. We considered cost associated with the installation of the cogeneration system and piping as initial investments. Profits from selling electricity and recovering heat are counted as income, while costs associated with buying biogas are expenses. Simple payback periods of 2-10 years were projected under the current economic conditions of South Korea. We found that most of the proposed scenarios can contribute to both energy savings and environmental protection.
机译：进行了可行性研究，以评估将基于沼气的热电联产系统改造为区域供热网络的技术和经济优势。选择了三个区域供热厂来容纳附近废物处理站的热量回收，在那里可以定期生产大量沼气。该方案涉及在每个废物处理站中构建热电联产系统，并产生电和热。根据最近几年调查的每月处理能力估算每个站的沼气产量。热电联产系统产生的热量首先由废物处理系统现场消耗，以将操作温度保持在适当的水平。如果有多余的热量，它将被运到最近的集中供热厂。模拟了热电联产系统全年运行的情况，以估算电力和热量的产生。我们将与热电联产系统和管道安装相关的成本视为初始投资。售电和热能回收的利润计为收入，而购买沼气的相关费用为支出。在韩国目前的经济条件下，预计2-10年的简单投资回收期。我们发现，大多数提议的方案都可以促进节能和环境保护。

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