RT info:eu-repo/semantics/article
T1 Energy use optimization in ventilation of operating rooms during inactivity periods
A1 Tejero González, Ana
A1 DeFreitas Barros Galvão, Víctor M.
A1 Zarzuelo Sánchez, Andrés Manuel
A1 San José Alonso, Julio Francisco
K1 Climatización
K1 Eficiencia energética
K1 Edificios
K1 Recuperadores de calor
K1 Hospital
K1 Operating room
K1 Ventilation setback
K1 Heat recovery
K1 Indoor overpressure
K1 Energy savings
AB Hospitals are highly energy demanding buildings, where simple actuations can involve large savings. However, energy efficiency actions must comply with the high safety standards. Operating rooms demand continuous ventilation despite the short activity periods. Setback during non-occupation of the operating rooms can reduce ventilation loads but must not hinder indoor overpressure to avoid infiltrations. Besides, it prevents any existing heat recovery system from operation. This work evaluates setback ventilation in operating rooms at a case study in Spain, from two approaches: its effect on indoor overpressure and its preference to an existing coil heat recovery (runaround) loop. It bases on monitored data of two operating rooms under setback and normal ventilation with operation of the heat recovery system. Seven tests are performed throughout the year, whose comparison to estimated results enables extrapolation to yearly operation. Results show that indoor overpressure maintain at 15 Pa under setback, thus meeting current and coming standards. Setback turned to be always preferable to hear recovery under cooling needs. Estimated heating and electric yearly supply energy savings reach 29 MWht and 262 MWhe, the latter accounting for 2% of the total electric energy consumption of the hospital during 2019.
PB Routledge (Taylor & Francis Group)
SN 0961-3218
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/48894
UL https://uvadoc.uva.es/handle/10324/48894
LA eng
NO Building Research & Information, 2020, vol. 29, n. 3, p. 308-324
NO Producción Científica
DS UVaDOC
RD 12-sep-2024