BUILDING CONTROLS & TECHNOLOGY
Accurate sensors are a key building block
The goal of the CO2 capture system is to reduce a building’s energy consumption while maintaining the same level of air quality inside. “Our system keeps the CO2 in the building at a low level, so that the ventilation can operate at very low levels in a demand-controlled mode. We need to be able to accurately measure the CO2 data to determine how much the system is capturing, which is where Vaisala’s sensors come into play. As well as CO2 sensors, our technology also uses sensors for humidity and temperature at various points in the process.” Petri explains the reasons behind choosing Vaisala for accurate measurement of temperature, humidity and CO2 saying: “It was important for us to use top-notch equipment in all of our units. We previously used cheaper sensors from elsewhere, but we found that the long-term stability of the equipment was lacking, which meant that we couldn’t guarantee accurate data as the equipment aged. Conscious of Vaisala’s reputation for customer service and accurate reliable measurement solutions, we therefore moved to Vaisala.” Petri also highlights the importance of
reliable equipment in gaining insights from measurement data: “The performance of our chemistry-based solution is affected by various factors including ambient conditions, so if you don’t have reliable data, it’s hard to judge why those changes have occurred.” The company’s future plans include
developing the TVSA technology to make the CO2 capture systems more compact and improve the sustainability of their operation. “We expect to continue our cooperation with Vaisala, and as our solution develops, we will likely need the
support of their experts on which sensors to choose and how to calibrate them to work optimally in changing atmospheric conditions,” Petri explains. With global urbanisation continuing apace and emissions regulations becoming
ever stricter, the need for innovative solutions in buildings and construction is set to grow – and with disruptive pioneers like Soletair Power leveraging Vaisala’s stable and reliable measurement technologies to take big steps forward, the future is bright.
Load balancing for real-time energy consumption
EM511:
Single phase energy analyser with Modbus RTU or M-bus
• Voltage input: 1-phase, 120 to 240 V L-N • Current input: direct connection up to 45 A • Initial quick setup wizard ensures error free setup • Modbus RTU or M-Bus communication port • 100 ms serial data refresh time • Optional digital output for pulse or alarm output • UCS configuration software (Modbus RTU) • UKCA, CE, cULus approvals
Read the latest at:
www.bsee.co.uk
Carlo Gavazzi UK Ltd. - 4.4 Frimley Business Park, Frimley, Camberley, Surrey GU16 7SG - Tel: 01276 854 110 -
www.gavazziautomation.com Carlo Gavazzi hp BSEE
Nov23.indd 1
13/10/23 11:19 BUILDING SERVICES & ENVIRONMENTAL ENGINEER NOVEMBER 2023 9
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