EAp2 Section 1.4 tables.xls

Thanks Marcus. But I did not quite understand. Is “Semi-conditioned” the same as “semiheated space” in ASHARE? And I have another question for “G3.1.3.12 Supply Air Temperature Reset” How to calculate the supply air temperature resetting, if the max room temperature is 26.5 °C? What means “the minimum cooling load conditions”?

Thank you for the reply again. Bellow I have described how I caculate my Baseline Case, please would you correct this. There are 5 AHU systems in proposed case for Office, Restaurant, Lobby and Storage. The proposed systems have no return air, and supply airflow rate is the minimum outdoor air. Therefore in baseline case I calculate the fan power and the design airflow rate for each system. 1. Minimum outdoor airflow rates are identical with the proposed case (G3.1.2.5). The min OA for office is 91,200 m³/h. 2. For Office the space heating load is 192 kW and cooling load is 313 kW. The baseline airflow was calculated base on 313 kW and a delta T 20 °F (SA to RA). The result is 84,510 m³/h and smaller than min OA (91,200 m³/h). According to G3.1.2.8 the required ventilation air is larger, therefore the design airflow rate is identical with min OA. 3. The min RA is 20 °C and the max RA is 26.5 °C (79.7 °F).The SAT was calculated as follows: Tzone – Tdesign = 20 °F 79.7°F – 59.7 °F = 20 °F Treset = Tdesign + 5 °F =59.7 °F +5 °F = 64.7 °F The air temperature for cooling will be reset to 64.7 °F Thanks a lot!