Recent content by mdossaji

I normally use the word "standoff"

So pretty much I need to design my flywheel to be less than 75 lb*ft^2?

I am designing a 2 cylinder reciprocating air compressor that uses around 13 HP. The air compressor is currently connected to a 15 HP motor. I want to add a flywheel to my design to limit the running torque. The motor is running at 1725 RPM. Can anyone guide me the proper method to perform...

Gurmeet, I feed the intake air from the inlet filter into the crankcase and then guide the air out to the low pressure inlet. This allows my crankshaft drive to be little cooler but the heat picked up by the filtered air eventually raises my low pressure intake temperature to 200F whcih does...

Crankcase temp is within allowable limit of 220F. Although I have seen my connecting rod crank bearing getting up to 300F.

The ambient temperature delta T to my high pressure discharge is 300F even though I use forced air cooling from the fan that is attached to the crankshaft turning at 1750 RPM. My loew pressure discharge delta is 190F from ambient.

its for the crankcase cooling assuming the heat generated inside the crankcase is coming form the bearing friction. Since the rings are polymer based, do you think the heat during compression is not releived through the cylinder wall causing the pisotn to overheat?

The connecting rod bearing is sealed with grease so there is no lube oil system.

The application is a 2-stage reciprocating oil-free air compressor. The pressure ratio per stage is 3.45. I am sure the heating is due to the blow and friction from the rings but since there is no oil inside the cranckase, the chamber gets quite hot. I was thinking of bringing in ambient air...

I am developing an oil-free air compressor and would like to get some feedback from anyone who has any experience in cooling. Inside of my crankcase seems to get quite warm around 250F. Was wondering if anyone has any idea how to cool the housing using natural convection. I have a fan placed...

I am working on developing a 2-stage horizontally opposed reciprocating compressor operating at 1800 RPM at 2.1 in stroke. The standard rule is to produce equal compression ratio between the two cycles but I know that is not possible especially when adding suction/discharge pressure loss and...

I have a test setup. See attached document. I need to set my pressure gage such that my water flowing out of the nozzle (.04 in orifice) will maintain .63 gal/min at 150 ft/sec. I tried the bernoulli's equation but the number seesm to high like around 260 psi. My recollection was 35 psig but...

so saturation pressure of water is same as vapor pressure at saturation?

Ione, Isn't vapor pressure different from saturation pressure?

I have a flow calculation for SCFM which requires saturation pressure (Psat)of water at ambient temperature. See attached calcuations. However the saturation pressure (Psat)curve stops at 32 degF. Is there a different curve used for saturation pressure of water at below freezing temperature...