Go back to article: A sustainable storage solution for the Science Museum Group

Control of the internal environment

It was always envisioned that some active mechanical system would need to be included in the environmental control of the store. This was intended to provide very energy-efficient management of the ambient environment in conjunction with the passive regulation by the building fabric. Ventilation to outside was considered necessary as the RH levels within the hangar would always be higher than those inside the repository; moisture stored in the hemp-lime walls would need to be dried out periodically. A Trend® IQ3 building management system (BMS) and two Airflow® air-handling units (AHU) were installed to circulate external cool dry night-time or warm daytime air depending on humidity requirements within the store. Services were run externally with only vents and monitors inside each room.

It was also of great importance to have a very accurate monitoring system as a source of data to research the effectiveness of the store, and to monitor the day-to-day conditions for maintaining the care of the objects. In fact, two monitoring systems were included: a Carnego® monitoring system for the BMS (14 combined T and RH sensors – two in each storeroom, one in the hangar and one external) was installed and managed remotely by the design engineers. Combined RH and T sensors were also installed as part of the museum’s bespoke environmental monitoring system[4], managed by Conservation staff.

Component DOI: http://dx.doi.org/10.15180/150405/011