锅炉系统作为主要的热源，在工业和商业上都消耗大量的能源。运行良好且效率较高的锅炉系统对系统性能至关重要。然而，在实践中，由于系统控制方法落后、锅炉尺寸过大、锅炉运行计划和系统设置不当等多种原因，锅炉系统的现有运行不仅增加了系统能耗，而且导致了更高的CO2排放。本文介绍了一个为工业锅炉系统进行的案例研究，以评估系统性能，同时确定提高系统能效的机会。 首先，本文讨论了现有锅炉系统的系统改进机会，如将系统蒸汽压力重置为较低，在FD风机上安装VFD，优化多燃烧器使用模式，优化给水系统。特别是，在将空燃比调整到最佳水平的情况下，对单燃烧器模式进行了研究。此外，本文还对优化后的单燃烧器运行模式进行了简要的能量分析。结果表明，通过优化燃烧器操作，在低负荷条件下可节省高达7%的燃料使用。 引文:ASHRAE论文CD:2014 ASHRAE年会，华盛顿州西雅图

As the major thermal source, boiler system consumes a large amount of energy for both industrial and commercial use. A well operated boiler system with higher efficiency is essential for the system performance. However, in practice, due to various reasons such as the outdated system control method, oversized boilers, improper boiler operation schedule and system settings, the existing operation of the boiler system not only increases the system energy consumption but also lead to much higher CO2emission. This paper presents a case study that was conducted for an industrial boiler system to assess the system performance while identifying opportunities to increase the system energy efficiency. First, the paper discusses the system improvement opportunities for the exiting boiler system, such as resetting the system steam pressure lower, installing VFDs to the FD fans, optimizing the multi-burner use pattern, optimizing the feed water system. In particular, single burner mode was investigated with air/fuel ratio adjusted to the optimum level. In addition, the paper provides a brief energy analysis after developing optimized single burner mode operation. It showed that with optimized burner operation, up to 7% fuel usage was saved at lower load condition.