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  • Energy Saving Related to Laboratory Ventilation and Air Conditioning

Energy Saving Related to Laboratory Ventilation and Air Conditioning

ASHRAE , 2019

Publisher: ASHRAE

File Format: PDF

$8.00$16.00


Standard By:ASHRAE , 2019
Published:2019
Pages:8
File Size:1 file , 550 KB
Language:English
Note:This product is unavailable in Russia, Belarus

Laboratory ventilation system requires special ventilation system and it is different than office air conditioning system. Based on type of laboratory and Hazardous gases, recirculation or direct exhaust system is considered. Hot humid area like Kuwait requires cooling in laboratory area. Based on permissible limit and threshold value, the hazardous classification of chemicals , pressurization in area in both positive and negative or zero is decided which varies between 0.04inch w.g to 0.01 inch w.g

Different types of Hood considering VAV air flow CAV air flow or Auxiliary air to bypass in HOOD etc. are considered.

The energy is required related to air conditioning system, ventilation system. Air quality monitoring system will help to save energy by demand controlled ventilation.
The Energy recovery unit with energy wheel is considered. Fresh air is cooled by cooling coil and energy benefit or enthalpy equaliser can be considered
like (Run Around coil / heat pipe system.) In laboratory area, generally100 % fresh air is considered. It is very important to reduce the air quantity
requirement based on occupancy. In general 10 ACH is considered .This can be reduced to 2 ACH.

Proper selection of Zone based on pressurization which depends on hazardous classification. The common area or surrounding area is considered
positive compared to laboratory area, but as a whole area is neutral.
Laboratory control is an important aspect for maintaining Environmental health in laboratory area. Occupancy sensor and demand controlled
ventilation by choosing air quality monitoring will reduce the Air change per hour as well as reduction of energy demand by proper variable air system.
In this paper a typical case of a project in Kuwait is studied .The related Energy savings based on occupancy and un-occupancy period have been
observed. The approx. saving is 30 %.

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