提高放射学实践中能源效率的新方法。

A New Approach to the Improvement of Energy Efficiency in Radiology Practices.

作者信息

Klein Hans-Martin

机构信息

Greenscan GmbH, Medizinisches Zentrum am Siegerlandflughafen, Burbach, Germany.

出版信息

Rofo. 2023 May;195(5):416-425. doi: 10.1055/a-2021-7386. Epub 2023 Mar 16.

DOI:10.1055/a-2021-7386

PMID:36928520

Abstract

PURPOSE

We examined ways to improve energy efficiency in radiology by using regenerative and energy-friendly technology in the construction and operation of two radiological facilities.

METHOD

In the years 2009 to 2010 an energy-optimized medical center with different clinical disciplines and a radiology practice was built. We used regenerative energy production (photovoltaic system, 29.92 kWp). A heat exchanger was also used to regain thermal energy to support heating of the building, thereby reducing cooling energy consumption. The practice operates a 1.5 T MRI machine and a computed tomography scanner. Derived from our experiences, an open MRI practice was built nearby in 2019. The building was constructed using an energy-saving technique. A photovoltaic system with a 10 kWh lithium-ion battery was installed. The practice operates a 0.35 T open MRI machine.

RESULTS

Energy optimization of the medical center resulted in an annual CO reduction of about 54 % from 153 146 to 70 631 kg/year. Energy costs were reduced by 32.5 %. The heat exchanger proved to be highly efficient. For the open MRI practice, energy consumption in 2020 was 38 810 kWh: 14 800 kWh for the heating/cooling of the building, and 24 010 kWh for the imaging systems and IT. Net energy production of the solar array was 30 846 kWh. Net energy consumption for the whole project was 8397 kWh/year. CO production of the practice was 1839 kg CO/year.

CONCLUSION

Regenerative energy, energy recuperation, and use of energy-efficient imaging systems can yield considerable improvement of the CO footprint in radiology practices.

KEY POINTS

· Radiology, in particular MRI, has high energy consumption.. · A heat exchanger can regain thermal energy from MRI machines to support room heating.. · Low-field MRI with permanent magnets consumes far less energy.. · Energy optimization results in less CO2 production and lower operation costs..

CITATION FORMAT

· Klein HM. A New Approach to the Improvement of Energy Efficiency in Radiology Practices. Fortschr Röntgenstr 2023; 195: 416 - 425.

摘要

目的

我们研究了通过在两座放射设施的建设和运营中采用可再生及能源友好型技术来提高放射科能源效率的方法。

方法

在2009年至2010年期间，建造了一座拥有不同临床学科和一家放射科诊所的能源优化型医疗中心。我们使用了可再生能源生产（光伏系统，29.92千瓦峰值功率）。还使用了一台热交换器来回收热能以支持建筑物供暖，从而降低制冷能耗。该诊所运营一台1.5T磁共振成像（MRI）机器和一台计算机断层扫描仪。基于我们的经验，2019年在附近建造了一家开放式MRI诊所。该建筑采用节能技术建造。安装了一个配备10千瓦时锂离子电池的光伏系统。该诊所运营一台0.35T开放式MRI机器。

结果

医疗中心的能源优化使每年的二氧化碳排放量从153146千克/年减少到约70631千克/年，降幅约为54%。能源成本降低了32.5%。事实证明热交换器效率很高。对于开放式MRI诊所，2020年的能源消耗为38810千瓦时：建筑物供暖/制冷消耗14800千瓦时，成像系统和信息技术消耗24010千瓦时。太阳能电池阵列的净发电量为30846千瓦时。整个项目的净能源消耗为8397千瓦时/年。该诊所的二氧化碳排放量为1839千克二氧化碳/年。