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"This e-book offers instruments and suggestions to layout, fee, and function lively and passive beam platforms to accomplish a decided indoor weather. It additionally offers examples of energetic and passive beam calculations and selections"--

summary: "This ebook presents instruments and counsel to layout, fee, and function lively and passive beam structures to accomplish a made up our minds indoor weather. It additionally provides examples of lively and passive beam calculations and choices"

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33 Active and Passive Beam Application Design Guide FIGURE 8-13 Active beams installed perpendicular to façade (façade at top, wall at bottom). 1 is calculated in the following table. 1 ; (Rp x NP + Ra x A) Note the significant difference between the two standards in ventilation airflow requirements. 2 PRIMARY AIRFLOW REQUIRED FOR MOISTURE CONTROL The water vapour addition to the indoor air is generated by the occupants’ metabolisms. The following table (Table 9-1) shows the mass of water vapour generated per unit time and per person based on the degree of activity.

Determine the sensible cooling capacity of the primary air, S,p, Btu/h (kW). 2 × (DBIDA – DBSUP) SI 6. Determine the required sensible cooling capacity from the beam(s), S,b Btu/h (kW), which corresponds to the beam capacity, P, where P is the space-sensible cooling-load-cooling capacity of supply air volume 7. Determine the beam quantity, size, and water flow rate based on the sensible cooling requirement. 8. , as long as the room). In this case, the coil is sized according to the required cooling load.

4 CONDENSATION PREVENTION The implementation of an adequate chilled-water temperature control system, together with the supply of an adequate amount of correctly conditioned primary air, is sufficient to avoid the occurrence of condensation on the beams. Water supply to active and passive beams should not be activated when space dew-point temperatures are above the zone chilled-water supply temperature. It must be ensured that the beam system chilled-water supply is shut off any time the air handler is not in operation and only restored when the space dew-point temperature is safe for noncondensing beam operation.

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