Laboratory prototype missing fume hood exhaust fans

[eringold]

Marked as todo and stubbed out here:

openstudio-standards/lib/openstudio-standards/prototypes/common/buildings/Prototype.Laboratory.rb

Lines 41 to 46 in 67b0223

	# @todo add exhaust fan to fume hood zone
	# search_criteria = ...
	# fume_hood_space = model_find_object(standards_data['Space Types'], search_criteria)
	# fume_hood_zone_volume = fume_hood_space.getVolume...
	# flow_rate_fume_hood = fume_hood_zone_volume * fume_hood_space['Ventilation_Air_Changes...']
	# model_add_exhaust_fan(model, thermal_zones, flow_rate=flow_rate_fume_hood, flow_fraction_schedule_name='Lab_FumeHood_Sch')

[mdahlhausen]

@KaiyuSun any thoughts on how we should address this?

[KaiyuSun]

@eringold Thanks for catching the leftover TODO item!
@mdahlhausen I'll work on it next week and let you know when I'm finished.

[KaiyuSun]

@mdahlhausen @eringold Just pushed the updated codes, check it out #1287 (comment)

Besides, I found a potential issue with the zone exhaust fan efficiency and posted here, could you help examine as well?

[mdahlhausen]

Addressed with #1287, though there is still an issue with the exhaust fan efficiency as detailed in #1286.