Abstract An economic and environmental benefit analysis have been performed using data from the field monitoring of a 25-kW wood pellet boiler heating system with thermal energy storage (TES) tanks installed in a home using a low temperature heat distribution system and radiant heat emitters in northern New York State (NYS). Pellet fuel demand was a linear function of daily average ambient temperature. It was used to predict total seasonal fuel and heat demand from the beginning of October to the end of April. A cost of heat (COH) analysis was performed considering all costs associated with the system including capital cost, operation, maintenance, other costs, and final system disposal (or salvation) cost. Sensitivity analysis showed that initial capital cost, wood pellet fuel price, and boiler heating system seasonal efficiency were the top three key factors determining the final COH with seasonal efficiency becomes more significant when pellet price increases. A life cycle annualized cost method was used to determine and compare the costs of heat using natural gas, No. 2 fuel oil, and propane. The study found that at the current seasonal efficiency of 75.8% (based on gross heating value), pellet fuel price of 240 $/ton, and maximum government incentives of $10,000, wood pellet boiler heating is able to replace intermediate efficiency (83%) propane heating systems in NYS at current fuel price of 2.48 $/gal. With a 3.6% fuel price increase to 2.57 $/gal, wood pellet heating is comparable with high efficiency (95%) propane heating systems. In addition, a heating oil price above 3.22 $/gal would make it economically possible to switch from oil heating to wood pellet heating in NYS. It was found that major emissions reductions can be achieved by switching from inefficient wood heating technology to wood pellet heating in terms of reductions in CO2, particulate matter (PM), and CO emissions. Greenhouse gas emissions reductions are also achieved when switching from fossil fuels to wood pellets, but PM and CO emissions increased significantly.

中文翻译：

---

纽约州现场监测住宅木丸锅炉加热系统的经济分析

摘要 使用来自安装在家庭中的热能储存 (TES) 罐的 25 kW 木屑颗粒锅炉加热系统的现场监测数据进行了经济和环境效益分析，该系统使用低温热分配系统和辐射热发射器。纽约州北部 (NYS)。颗粒燃料需求是日平均环境温度的线性函数。它被用来预测从 10 月初到 4 月底的季节性燃料和热量需求总量。考虑与系统相关的所有成本，包括资本成本、运营、维护、其他成本和最终系统处置（或拯救）成本，进行了热成本 (COH) 分析。敏感性分析表明，初始资本成本、木屑颗粒燃料价格、和锅炉供暖系统季节性效率是决定最终 COH 的前三个关键因素，当颗粒价格上涨时，季节性效率变得更加重要。使用生命周期年化成本方法来确定和比较使用天然气、2 号燃料油和丙烷的供热成本。研究发现，在目前 75.8%（基于总热值）的季节性效率、240 美元/吨的颗粒燃料价格和 10,000 美元的最高政府激励措施下，木屑颗粒锅炉供暖能够替代中间效率（83%）纽约州的丙烷供暖系统，目前燃料价格为 2.48 美元/加仑。燃料价格上涨 3.6% 至 2.57 美元/加仑，木屑加热可与高效 (95%) 丙烷加热系统相媲美。此外，取暖油价格在3以上。22 美元/加仑将使在纽约州从油加热转换为木屑加热在经济上成为可能。研究发现，在减少二氧化碳、颗粒物 (PM) 和二氧化碳排放方面，从低效的木材加热技术转向木屑颗粒加热可以实现重大减排。从化石燃料转向木屑颗粒也可以减少温室气体排放，但 PM 和 CO 排放量显着增加。