A domestic clothes dryer essentially consists of a rotating heated drum in which wet clothes are put. The drum is belt driven by an electric motor and hot air is forced onto the wet clothes through the drum and expelled out through a duct. The drum is enclosed in a sheet metal box. At the bottom corner of the box the drive electric motor is mounted. In order to reduce the structure borne noise, the motor is mounted at four locations through elastomeric mounts. The physical dimensions and mass of the dryer are 53 cm x 60 cm * 72 cm and 26 kg, respectively. Motor rating and Heater rating are 300 W and 1.8 kW, respectively. The drum used inside the dryer for placing the wet clothes is epoxy coated; a maximum of 5.5 kg of wet clothes can be dried in this dryer in an operation cycle. The dryer has a safety cut-off switches which limits the temperature inside the drum to 105°C. All measurements were done in the clothes dryer while running empty. Through sound intensity method noise mapping measurements it has been found that some of the major source of noise in a clothes dryer are the rectangular sheet metal shell, the motor and the blower exhaust. Various derivatives of jute are used for the noise control; jute felt is stuck to the in­ner walls of the rectangular shell by glue, jute felt is attached to the rear panel of the shell, the duct which carries the hot air out of the clothes drum is lined with jute fiber faced of 400 gsm jute textile. An overall noise reduction of 6 dB was obtained by such a treatment. Fig. 6.20 shows an opened view of the jute-lined shell of the clothes dryer. The octave band spectrum of the radiated sound power of the treated and untreated clothes dryer is shown in Fig. 6.2162. A similar type of treatment can be done for clothes washer, dishwasher and window type room air-conditioner.