Simulation analysis for controlling temperature stability of a radiant-board system served for thermodynamic temperature measurement laboratory

IF 6.1 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Building Simulation Pub Date : 2024-08-13 DOI:10.1007/s12273-024-1151-4

Haoxue Liu, Siqi Liu, Xiuming Li, Zongwei Han, Haiyang Zhang, Bo Gao

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Abstract

Fundamental metrology is closely tied to scientific advancement and requires well-equipped facilities to achieve low measurement uncertainty in rigorous experiments. Addressing the ±0.1 K high-stability temperature control issue of the precision laboratory radiant air conditioning system, this study investigated the influence of different radiant panel area ratios, laying methods, cold source water supply temperature fluctuations, and external environmental disturbances by simulations. The results indicate that: (1) the larger the ratio of radiant panel area, the greater the fluctuation in equipment surface temperature; (2) the surface temperature of the measurement equipment can satisfy ±0.1 K control temperature stability requirement when the fluctuations of the surface temperature of radiant panels and glass window are within ±0.5 K and ±1 K respectively without radiant panels on the ceiling; (3) the surface temperature of the measurement equipment can satisfy ±0.1 K control temperature stability requirement when the fluctuations of the surface temperature of radiant panels and glass window are within ±0.2 K and ±2 K respectively with radiant panels on the ceiling. This study provides a reference for the design and operation control of air conditioning systems in fundamental metrology.

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用于热力学温度测量实验室的辐射板系统温度稳定性控制模拟分析

基础计量学与科学进步密切相关，需要装备精良的设施，才能在严格的实验中实现低测量不确定度。针对精密实验室辐射空调系统的±0.1 K高稳定性温度控制问题，本研究通过仿真研究了不同辐射板面积比、铺设方式、冷源供水温度波动和外部环境干扰的影响。结果表明(1) 辐射板面积比越大，设备表面温度波动越大；(2) 当辐射板和玻璃窗表面温度波动在±0.5 K 和 ±1 K 时，测量设备表面温度可满足 ±0.1 K 的控制温度稳定性要求；（3）在天花板上安装辐射板时，当辐射板和玻璃窗的表面温度波动分别在 ±0.2 K 和 ±2 K 范围内时，测量设备表面温度可满足 ±0.1 K 的控制温度稳定性要求。这项研究为基础计量学中空调系统的设计和运行控制提供了参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Building Simulation THERMODYNAMICS-CONSTRUCTION & BUILDING TECHNOLOGY

CiteScore

10.20

自引率

16.40%

发文量

审稿时长

>12 weeks

期刊介绍： Building Simulation: An International Journal publishes original, high quality, peer-reviewed research papers and review articles dealing with modeling and simulation of buildings including their systems. The goal is to promote the field of building science and technology to such a level that modeling will eventually be used in every aspect of building construction as a routine instead of an exception. Of particular interest are papers that reflect recent developments and applications of modeling tools and their impact on advances of building science and technology.