I want to shut it inside a small room, but will it not suffocate ? Which part of the gen set should be moved out of the room ?
Shuv somethin in the egsaust pipe
You need to provide a space with good air flow for cooling with baffles on the air path so that sound following the air path is absorbed. The walls need to be built with absorbing material between the inner and outer surfaces to reduce transmission that way. You need a good muffler on the exhaust. Unfortunately, all this adds volume to the generator. A properly sound insulated generator with air space maintained is likely to take up 3-4 times the volume of the generator itself just standing there - baffled ducts themselves take up twice the space of the inside volume or more. As others have said - inside is a bad idea.
This is not a good idea. This generator is more than just loud, it poses a serious health and safety threat. The exhaust gasses from the generator have to be vented to the outside or the carbon monoxide they contain will kill you. Diesel fuel is a fire hazard and without proper fireproofing you will end up with a serious fire. Finally, the generator has to be provided with a separate supply of outside air both to ventilate the space to prevent overheating and to supply air for the engine.
The size is relevant. Is this a small portable set for homes, or a large stationary unit for a building. I'll assume the latter. Enclose it in a sound barrier, but bring the exhaust out the top and make an air inlet at the bottom that goes to the air intake of the engine. You may need additional openings for ventilation to keep the engine from overheating. You may be able to bring the radiator outside the enclosure to solve that problem. Make sure you have a very good muffler. Look into finding a better one. You may be able to buy an enclosure for the generator, check with the manufacturer. PS, you seem to have this located indoors. That is a very bad idea.
