TY - JOUR
T1 - A control approach to regulate formaldehyde concentrations indoors a gross anatomy laboratory via a switched fuzzy logic system
AU - Herrera-López, E. J.
AU - Pitalúa-Díaz, N.
AU - Pliego-Sandoval, J. E.
AU - Femat, R.
AU - Velazquez, L.
AU - Munguia, N.
AU - González-Angeles, A.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/1/15
Y1 - 2021/1/15
N2 - In this paper, a switching fuzzy logic controller (SFLC) was proposed to reduce formaldehyde (FA) concentrations in a gross anatomy laboratory. At large vapor levels a hasty fuzzy logic controller (HFLC) first is activated to decrease the hazardous concentration. A switching criterion enables a second precise fuzzy logic controller (PFLC) that smoothly takes the systems output near the desired set-point. An adaptive algorithm allowed the SFLC to select the proper number of extraction systems from 3, 6, or 9 devices. The simulated performance of the fuzzy controller was satisfactorily decreasing and stabilizing the FA concentration even in the presence of parametric disturbances at set-point values of 0.37 mg/m3 and 0.29 mg/m3. However, the performance of the SFLC deteriorated as the number of dissection tables >35. The results showed that SFLC can be considered as a promising strategy to ensure indoor air quality in gross anatomy laboratories.
AB - In this paper, a switching fuzzy logic controller (SFLC) was proposed to reduce formaldehyde (FA) concentrations in a gross anatomy laboratory. At large vapor levels a hasty fuzzy logic controller (HFLC) first is activated to decrease the hazardous concentration. A switching criterion enables a second precise fuzzy logic controller (PFLC) that smoothly takes the systems output near the desired set-point. An adaptive algorithm allowed the SFLC to select the proper number of extraction systems from 3, 6, or 9 devices. The simulated performance of the fuzzy controller was satisfactorily decreasing and stabilizing the FA concentration even in the presence of parametric disturbances at set-point values of 0.37 mg/m3 and 0.29 mg/m3. However, the performance of the SFLC deteriorated as the number of dissection tables >35. The results showed that SFLC can be considered as a promising strategy to ensure indoor air quality in gross anatomy laboratories.
KW - Formaldehyde
KW - Fuzzy system
KW - Gross anatomy laboratory
KW - Switched controller
KW - VOCs
KW - Well mixed room model
UR - http://www.scopus.com/inward/record.url?scp=85097745486&partnerID=8YFLogxK
U2 - 10.1016/j.buildenv.2020.107492
DO - 10.1016/j.buildenv.2020.107492
M3 - Artículo
AN - SCOPUS:85097745486
SN - 0360-1323
VL - 188
JO - Building and Environment
JF - Building and Environment
M1 - 107492
ER -