In-situ relics preservation under multi-media coupling environment in archaeology museums

To satisfy the requirement for environmental control of relics preservation in archaeology museums a preservation strategy for reintegrating primitive environment is proposed, in which some environmental parameters are strictly restricted in the soil-air coupled environment. In order to verify this technique, a laboratory room with a funerary pit was constructed to simulate a large open exhibition hall of archaeology museums, and a capillary radiant system was built to perform the environmental control for relics preservation. The field test showed that the capillary radiant system provided a more stable condition for the unearthed relics in the funerary pit. Experimental results proved that the temperature fluctuation of preservation area was reduced from 3.6 to 1.6℃, the average temperature difference of soil-air coupled environment decreased from 2.1 to 0.3℃, and the average temperature difference across the relic decreased from 3.8 to 0.8℃. Meanwhile, the air velocity in the preservation was controlled within 0.06 m/s, which is well below the upper limit value of 0.15 m/s prescribed for museums. The proposed preservation method is effective in mitigating heat and mass transfer and creating a more balanced environment for relics preservation.