. Power, heating and ventilation ... a treatise for designing and constructing engineers, architects and students . he heaterinstead of through it. Combination Methods.—^One of the best arrangements is acombination of these two methods. A rough or partial regulationmay be obtained by manipulating the steam valves and a fineradjustment by the use of the by-pass damper. For the best re-sults the latter should be operated automatically by a graduatedthermostat placed in the hall. After an audience hall is oncewarmed and filled with people, very little heat is required to keep DIFFERENT TYPES OF B
Image details
Contributor:
Reading Room 2020 / Alamy Stock PhotoImage ID:
2CE02AMFile size:
7.1 MB (400.6 KB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
1485 x 1682 px | 25.1 x 28.5 cm | 9.9 x 11.2 inches | 150dpiMore information:
This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.
This image could have imperfections as it’s either historical or reportage.
. Power, heating and ventilation ... a treatise for designing and constructing engineers, architects and students . he heaterinstead of through it. Combination Methods.—^One of the best arrangements is acombination of these two methods. A rough or partial regulationmay be obtained by manipulating the steam valves and a fineradjustment by the use of the by-pass damper. For the best re-sults the latter should be operated automatically by a graduatedthermostat placed in the hall. After an audience hall is oncewarmed and filled with people, very little heat is required to keep DIFFERENT TYPES OF BUILDINGS 291 it comfortable even in the coldest weather. The air supply peroccupant may be taken about the same as for a church. Theaters. In designing a heating and ventilating system for a theater awide experience is necessary in order to secure the best results. Heating Auditoriums.-—A theater consists of three parts: thebody of the house or auditorium; the stage and dressing rooms;and foyer, lobbies, corridors, stairways and offices. The onlysatisfactory way of warming and ventilating the auditorium is. Fig. 203. Heating System for Theaters. by the use of a fan, and the most approved method of air dis-tribution is to force it into closed spaces beneath the floors, andallow it to discharge upward among the seats in a large numberof finely divided streams. One of the best arrangements isthrough chair legs of special latticed design, which are placedover floor openings of about 4 square inches for each leg. In thisway the air is delivered to the room at a low Velocity withoutdraughts or currents and is thoroughly diffused among the audi-ence. A chair of the form mentioned above is shown in Fig. 20:5.Another method, widely used at the present time, is the placingof a mushroom inlet, so called, beneath each chair and con- 292 HEATING AND VENTILATING PLANTS necting it with a plenum space below the floor as alreadydescribed. Sections through an inlet of this type are shown in