本文基于ASHRAE研究项目RP-1182的研究结果。本文介绍了在三个不同高度对四台引风住宅式加热炉进行现场测试的结果，以评估在海拔高度运行对稳态效率和一氧化氮排放的影响。测试高度为海平面2250英尺（685米）和6700英尺（2040米）。天然气和丙烷气都被用作试验燃料。使用的测试协议来自ANSI Z21。47-2001/CSA 2.3-2001美国国家标准/CSA燃气中央熔炉标准（ANSI 2001）。一篇配套论文（Fleck et al.n.d.）讨论了三个试验高度的安全运行极限和降额方案研究的结果。结果表明，两种燃料的效率都有随海拔高度增加的趋势，丙烷气体产生的效率最高，烟气中的一氧化氮（NO）浓度水平（每单位有效热输出的NO质量）最高，出现在2250英尺（685米）处，而最低水平出现在6700英尺（2040米）处。 在所有海拔高度，高效熔炉产生的NO浓度均低于中效熔炉。单位:双引文:ASHRAE交易，第115卷，第。2009年1月1日，芝加哥

This paper is based on findings resulting from ASHRAE Research Project RP-1182.The results of field testing four induced draft residential furnaces at three different altitudes to evaluate the effect on steady state efficiency and nitric oxide emissions of operating at altitudes above sea level are presented. The test altitudes were sea level, 2250 ft (685 m), and 6700 ft (2040 m). Both natural gas and propane gas were used as test fuels. The test protocols used were fromANSI Z21.47-2001/CSA 2.3-2001 American National Standard/CSA Standard for Gas-Fired Central Furnaces (ANSI 2001). A companion paper (Fleck et al. n.d.) discusses results from studies on safe operation limits and derating schemes at the three test altitudes.The results showed a trend of increasing efficiency with altitude on both fuels, that propane gas produced the highest efficiencies, and that the highest flue gas nitric oxide (NO) concentration levels (mass of NO per unit of useful heat output) were found at 2250 ft (685 m), while the lowest levels occurred at 6700 ft (2040 m). The high-efficiency furnaces produced lower NO concentration levels than the mid-efficiency furnaces at all altitudes.Units: Dual