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I don't have any oil cooler for this system. I never thought of the cavitation problem until you brought this up. Thanks for the comment. I will check the system once i go to site again, which is next month. :) As of now I will try to study the system through theory and PID

I have a hydraulic system with manifold and cartridge valves. Oil is leaking for the manifold. When inspect, found that some o ring is damage. The temperature of hydraulic oil is high enough, that cause the damage of the o ring. High pressure in system will increase the temperature. I don't...

Sorry for the late reply. I live in SEA. Please refer to the sketch. Yes. The volume of dampener is greater than 1 liter. Only gas is leaking at dampener. By right the time taken to reach operating pressure is more, but that is in the range of a few seconds. No oil is added to the reservoir...

Refer to the photo. Unloading valve set pressure = 130 bar Pulsation damper pre-charge N2 pressure = 50 bar Pulsation damper nominal liquid volume = 1 liter Consider the following scenario. Pulsation damper gas valve is leaking gas. As liquid is incompressible, in order to reach 130 bar...

I came across an excel sheet, which can calculate the tube exit surface temperature in fire tube boiler. E = exp (Surface area*U/Flue gas weight*Cp) Where, U = Overall heat transfer coefficient Cp = Specific heat at constant pressure Tube gas exit temperature = [(FEGT - Tsat)/E] + Tsat...

Dear All, I am having trouble to finding the heat transfer coefficient of spiral retarders. The sketch of the tube is shown in the link. [highlight #FCE94F]My objective is the find the heat transfer coefficient for the spiral retarders[/highlight]. With retarders, a turbulent flow will be...

Chicopee, what you mentioned about the efficiency is near to what I had calculated; 83%. So far I had done the excel sheet. I am stuck at here. Actually part of the reason why I take up this challenge is to understand better the mechanisms behind the boiler. The process is more important than...

Thank you for your time. It was weekend, so I didn't reply. Just finished Avengers Infinity War, greatest movie of 2018. Anyway back to the question, just to answer chicopee, this is a reverse flame fire tube boiler. I think i didn't sketch the overall of the system. You can check it out in...

Hello ladies and gentlemen, My objective is to find the tube exit gas temperature in fire tube boiler. I know the rate of heat transfer, Q=m.c.delta T, should be equal between gas and water side. Anyway, I have work out the analysis as attached. However, I just cannot seem to get the final...