一项对50处潜在太阳能住宅用地的调查，比较了太阳能空间供暖安装前后的能源使用情况，得出了五处满足必要要求的住宅。结果表明，燃油节省率为供暖要求的30.6%至32.0%。太阳能集热器使用空气作为传输流体；生活空间从1500平方英尺到2700平方英尺不等。对这五个系统进行了f图分析，并与实际节省的燃油量进行了比较。f-chart计划预测燃油节约率为10.5%至17.9%，这是一个显著差异。另一个性能程序MONSUN随后与测试结果进行了比较。MONSUN项目使用过去五年收集的密歇根州卡拉马祖微气候的天气数据输入。数据与预测值相比更为有利，从22.9到36。 8%. 对潜在的太阳能用户来说，经过仔细分析的特定装置的测试结果是无可争议的证据。理论分析和假设一样好，缺乏可信度。实际数据和理论预测之间的差异主要表现在两个方面:（1）天气数据输入不准确；（2）试验台（ASHRAE 93-77）建立的收集器效率曲线与实际安装效率曲线之间的差异。后一种差异可归因于试验结果和现场结果之间的流量差异。单位:I-PCITION:研讨会，ASHRAE交易，1987年，第93卷，pt。田纳西州纳什维尔2号

A survey of 50 potential solar residential sites for comparison of energy use before and after solar space heating installations produced five homes that met the necessary requirements. Results show that fuel savings ranged from 30.6% to 32.0% of the heating requirements. The solar collectors used air as the transfer fluid; living space varied from 1500 ft2to 2700 ft2. An f-chart analysis was performed on the five systems and compared to the actual fuel savings. The f-chart program predicted fuel savings of 10.5% to 17.9%, a significant difference. Another performance program, MONSUN, was subsequently compared to the test results. The MONSUN program uses weather data input collected over the past five years for the micro-climate in Kalamazoo, Michigan. Data compared more favorably with predicted values, ranging from 22.9& to 36.8%. The test results from specific installations, carefully analyzed, represent undisputable evidence to the potential solar user. Theoretical analysis is as good as the assumptions made and lacks credibility. Discrepancies between actual data and theoretical predictions can be found in two principal areas: (1) inaccurate weather data input and (2) differences between the collector efficiency curve established the test stand (ASHRAE 93-77) and the actual installed efficiency curve. The later discrepancy can be attributed to differences in flow rate between test and field results.Units: I-P