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After carefully reviewing the VM I found the refrigerant charging value in LBs. It is a very old manual and the information was embedded. Thanks all

Hi, I have chiller that has 752 tons capacity. How can I determine the mass of R12 refrigerant the chiller is charged with. Thanks

Hi, I am working on a modification that requires the replacement of ASME Section III, Class 3 valve which requires the "N" stamp. The valve is needed for the upcoming outage that is 2 months from now. Unfortunately, the lead time for new valve is no less than 48 weeks. I am reaching out to...

Hi, I am working on a modification that requires the replacement of ASME Section III, Class 3 valve which requires the "N" stamp. The valve is needed for the upcoming outage that is 2 months from now. Unfortunately, the lead time for new valve is no less than 48 weeks. I am reaching out to...

Thank you all for the help

Its desired to install insulating flange gasket kit. But how would the corrosion affect the stainless steel surface?

Is it possible to connect a stainless steel flange to carbon steel flange (24" piping) with river water as the flowing fluid? what type of problem would the flange connection experience? do I need insulating kit? any help would be appreciated

Hi, I need to calculate the air flow through a 2” wall penetration between 2 rooms based on pressure difference of up to 1” of water. I am assuming that the penetration can be modeled as 2” round edge orifice. Crane Tech paper 410 provides the necessary equation for calculating the air flow...

Hi I am a fairly a new higher at consaltant compnay for Nuclear generating plant and had an internship at a coal plant. If you are to work for a caol plant, I'd say worry less about answering any technical questions other than the basic concept of power generation. Look in your thermodynamic...

I think the equation is calculating the radiation heat transfer coefficent "h_r" between the radiating gas and the surface, NOT the heat transfer rate "q_r". where, h_r=q/A(T1-T2), and q_r= A* boltzmann's constant * emissivity * F * T_s^4; Since, you are looking at the average temp...

Thank you all,

something is wrong with the DQ I provided you above. I will get back to you ASAP

temprature keeps going up due to the heat input from pump motor. If you need a DQ to calculate the temprature at time t, you need to utalize the general energy equation P*Cp*dT/dt= q*V where: P: fluid density q: Heat rate (input)per a volumatric flow rate V: volume Cp: specific heat Try it

IRstuff, When heaters are energized, expansion of the water at the point of heat input casues the warmer water to rise along the heated half of the tank (where the 3 heaters are energized). As it rises it mixes with cooler water from the uneated half. Cooler water will descend along the...

Hi all, I need to prove theortically that natural convection will occur inside a water storage tank. The tank specs specs are hight : 70 ft Diameter: 27 ft capacity: 285,000 gallons Constant pressure isdie tank The tank has 6 elecrical heaters (Thermostatically controlled). The heaters and...