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Dear sirs, can anyone give me a estimate of unitary cost price per m² for a HVAC system (generation, transport and terminal units) for clean rooms? with kind regards, Jan Liefooghe

Hi, can somebody tell me what Specdific heat of water vapour at -20°C is? with kind regards

Hi all, I'm designing a office building for 900 people. This office building has 155 meeting rooms with a average of 7 people. The building is new and we have to design a fitt out. The buildings AHU (16000m³/h and 26000m³/H). THe local law requires 30m³/h per person in a meeting room. I dont...

Hello, I'm looking for a good GMP guide for usage in HVAC for pharmaceutical plants. Online or in store, With kind regards, Liefooghe Jan

I will keep that in mind.

Hi, I am looking for a table or graphic where I can find the pressure loss in pipelines for a product Iso (300 cP) and polyol with a viscosisty of 800 cP. With kind regards, Liefooghe Jan

I'm looking for a program or excel sheet which can tell me how much hours it will take to install a pipingsystem. Taking care of welding, fittings, screwing, flanges, valves, supporting... Shop and field work seperated if possible. With kind regards, Liefooghe Jan

Jacobs Engineering group did the piping design

Hello, A pipe system is filled with Hydrogen peroxide. When in a pipeline which ends with a valve and the valve is closed and there remains a little bit of Hydrogen peroxide, What happens when in the summer the peroxide in the pipe heats up from 68°F (ambient) to 104°F (summer). Will it expand...

Is citric acid the same as lactic acid? If not what are the differances and comparisons? Kind regards, Lantyr

The firesystem is cleaned with steam. I'm sure that tubercles will be present. 254 SMO is a material which is simmilar to Hasalloy but a bit cheaper. A other possibility is dubble walled piping system. CS pipes with teflon or PTFE.

I've received a mail which states that SS 254 SMO is the best SS material which stands against bromine and hypochlorite.

We want to have a sprinklingsystem to be flusched with steam. In that sprinklingsystem we will add Sodium Hypochlorite and Bromine for bacteriacide. My question is what kind of pipe material may we use? We would use Stainless Steel piping but what kind? The water is at 260-300 °F (Steam) Are...

The translation is Bromine and Sodium Hypochlorite which is going trough the pipes while they are flusching with steam.

I want to have a pipe system filled with water. In that pipe system I will add Hypochloride and Bromide for bacteriacide. My question is what kind of pipe material may I use? We allready know we are going to use Stainless Steel piping but what kind? The water is at 130-150 °C (Steam) Are there...

Butelja, I just saw your story. Best I`ve ever heard in my engineering career.

Do you know a process or a product which makes solid particale out of a liquid when heated. This heating would be happening with a grid. The liquid would be spot heated. The purpose is the at te spot where the liquid is heated, a solid particle should devolop and stay till the grid went true...

Hi, Are there liquids who turn solid when heaten? Regards, Jan

Quark, I downloaded the book today. It looks fantastic. I spended way to much money on smaller books like these. And they are just for free on the net! You`re great. Regards, Lantyr