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Is there an equation from where I can calculate the pressure of propane inside a tank if I know the temperature of the liquid? This pressure is constant, when the vapour and liquid phase come in equilibrium.

Hi, I am trying to find out a way to calculate the rate of vaporization of butane/propane inside a storage tank at various temperatures. Can you please help me? Happy new year

Hello, merry christmas to all. We have a pressure vessel, spherical tank for the storage of LPG. I am trying to find out any codes/standards that will guide me through this procedure. This tank is already calibrated by a strapping method. The first way was to measure a vertical and horizontal...

I am trying to calculate friction losses in a pipe in order to find out what size of pump I will need. LPG in a liquid state is transfered through this pipe. For this case am I supposed to assume the LPG liquid as an incompressible fluid and use the moody diagram? At the end consumers where...

Can I use moody diagram for compressed air or there is some other mathematical simulation for this case? I want to calculate basically friction loses inside compressed air pipeline. Thanks in advance.

Hello, I have an air compressor Radaelli. And I am looking for the company Radaelli on the web so that i can find a phone number in order to get my compressor fixed. But I cannot find a webpage of Radaelli neither a phone number. Can someone please tell me where I can find Radaelli? The type...

Can someone please tell me which is the API standard for the design of LPG tanks?

Hello. I am trying to find autocad libraries for free. Any kind would be useful. I use Autocad 2005. THanks in advance

Hi to all, I am looking for physical properties of heavy fuel oil at various temperatures. Are there any websites that I can get this info from? Or any other reference that could help me. I basically want to calculate heat losses from a storage tank. In order to do that I need to calculate...

Hi to all, I am trying to calculate the heat transfer coefficient for different fluids on various surfaces. I would really appreciate if you could give me any information around this subject. Also a program would be more suitable. Mostly I am interested in calculating heat transfer...

Hello to all, I am trying to find required chimney cross section for a 47kW power central heating system. I have used until know the following equations: from DIN 4705 Redtenbacher that gives me a 0.037 square metres Another one is Plewa and it gives me 0.03 square metres and a last one from...

Hello everyone, I have a problem trying to find the speed of water around 80 centigrade inside a pipe used for central heating. I know that: V=(G/(Pi*D^2/4))*(1/3600) in (m/sec) where G is flow rate of water in m^3/hour D diameter of pipe and Pi = 3.14 The results I get are close to the...

I have found the following standards ISO 7507 PART 1: STRAPPING METHOD PART 2: OPTICAL-REFERENCE-LINE METHOD PART 3: OPTICAL-TRIANGULATION METHOD PART 4: INTERNAL ELECTRO-OPTICAL DISTANCE- RANGING METHOD PART 5: EXTERNAL ELECTRO-OPTICAL DISTANCE-RANGING METHOD which method do you think is...

Hi to all, I am new to this topic and I would really appreciate any advise or guidelines you could offer me. 1) Design of storage tanks with heat exchangers and thermal insulation. 2) Necessary operating conditions eg. temperature of fuel oil in order to pump in a specific flow rate. 3)...