集中燃气锅炉和制冷机是多户公寓楼供暖和制冷的一种经济有效的方式。然而，需要有一种公平的方法来计量能源成本，并将其分配给各个住户。为此，报告了七种新型电能表及其各个部件的测量精度和工作特性。所评估的电能表由一个流量计量组件、两个温度传感器和某种类型的积分器组成，用于计算所使用的热能。研究表明，电能表的主要误差源是流量计组件。所有流量计和电能表的误差均超过制造商公布的数值。流量计偶尔表现出较差的重复性，其精度受到水温的影响。 当使用精确模拟的流量和温度输入信号进行测试时，商用信号处理器的能量读数误差超过正负3%。为了提高热能表的整体精度，本文提出了几点建议。关键词:测试、能源、仪表、计量、测量、精度、操作、冷却器、性能、部件、流量计、温度、传感器、扁平件、集成流量计、水温、集中服务、燃气锅炉。单位:双引文:研讨会，ASHRAE交易1993，第99卷，pt。1.

Centralised gas-fired boilers and chillers represent a cost-effective means for heating and cooling multi-family apartment buildings. It is, however, desirable to have an equitable method for metering and allocating the energy costs to the individual occupants. To this end, reports on the measured accuracies and operating characteristics of seven new energy meters and their individual components. The energy meters evaluated consisted of a flowmetering component, two temperature sensors, and some type of integrator to calculate the thermal energy used. The studies revealed that the main source of error for energy meters is in the flowmeter component. All of the flowmeters and energy meters exhibited errors in excess of the manufacturer's published values. The flowmeters occasionally showed poor repeatability, and their accuracy was affected by the water temperature. The commercially available signal processors, when tested with precisely simulated flow and temperature input signals, exhibited errors in energy readings exceeding plus or minus 3%. Several recommendations are offered to improve the overall accuracy of thermal energy meters.KEYWORDS: testing, energy, meters, metering, measuring, accuracy, operations, chillers, properties, components, flowmeters, temperature, sensors, flats, integrating flowmeters, water temperature, centralised services, gas fired boilers.Units: Dual