Determine the reverberation time of a room whose dimensions L=20m, W=13m, and H=8m with a triangular ceiling of height 2m. The wall is made of marble with absorption coefficient of 0.03, the floor is covered with carpet (13m X 13m) with an absorption coefficient of 0.4, the ceiling is covered with plaster and lathe having 0.70 absorption coefficient. The floor is tiled with an absorption coefficient of 0.4. The sliding window on both sides is open half with a dimension of 2m X 10m and 0.075 absorption coefficient. The door (1.8m X 0.7m) has an absorption coefficient of 0.01. The windows is covered with blinds having 0.5 absorption coefficient half roll upward. A window type air-condition unit (W=470mm, H=340mm, D=600mm) is mounted at one side wall 6.5m from the floor to the base of the ACU with absorption coefficient of 0.35 and a refrigerator with dimensions 2ft X 2ft X 7ft is present in the room with 0.15 absorption coefficient. Use Fitzroy Equation.
Determine the reverberation time of a room whose dimensions L=20m, W=13m, and H=8m with a triangular ceiling of height 2m. The wall is made of marble with absorption coefficient of 0.03, the floor is covered with carpet (13m X 13m) with an absorption coefficient of 0.4, the ceiling is covered with plaster and lathe having 0.70 absorption coefficient. The floor is tiled with an absorption coefficient of 0.4. The sliding window on both sides is open half with a dimension of 2m X 10m and 0.075 absorption coefficient. The door (1.8m X 0.7m) has an absorption coefficient of 0.01. The windows is covered with blinds having 0.5 absorption coefficient half roll upward. A window type air-condition unit (W=470mm, H=340mm, D=600mm) is mounted at one side wall 6.5m from the floor to the base of the ACU with absorption coefficient of 0.35 and a refrigerator with dimensions 2ft X 2ft X 7ft is present in the room with 0.15 absorption coefficient. Use Fitzroy Equation.
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