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Zone HVAC:IdealLoadAirSystem and Zone Latent Cooling Result

asked 2024-09-03 08:21:48 -0600

Thit
55 ●1 ●5

updated 2024-09-06 00:59:57 -0600

Hello Everyone, May I ask why I got latent cooling so high at first, remained constant, and then rose again. Both supply air latent and zone latent have the same trend. (https://www.dropbox.com/scl/fi/3xsim7...) (https://www.dropbox.com/scl/fi/jgvey9...) I have two internal gains objects: People, Lighting (operate at the same time with HVAC from 9am-6pm) Infiltration is 2ACH open 24hr, Outdoor Air is flow/person (0.00944m³/s using occupancy schedule) Thermostat at 24'C (https://www.dropbox.com/scl/fi/be2kvh...) Here is my model (https://drive.google.com/drive/folder...)

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@Thit can you upload your EnergyPlus model to Google Drive, Dropbox, etc. and then share a link to that? That would allow others to provide better help.

Aaron Boranian ( 2024-09-03 09:37:25 -0600 )edit

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answered 2024-09-08 15:25:13 -0600

flag of United States of America

889 ●8 ●6 http://helix-engineers.net/

Good question. The HVAC system starts up at 0900 with high latent load (ie. outside drybulb is low, humidity is high). HVAC system gets humidity and temperature under control and begins steady state operation. Later in the day, right before the HVAC system shuts down at 1800, humidity begins to increase, so the HVAC system latent load increases. image description

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@Ski90Moo thank you sir

Thit ( 2024-09-09 07:56:41 -0600 )edit

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Asked: 2024-09-03 08:07:43 -0600

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Last updated: Sep 09

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