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@Snickster, Thanks for your sharing. Agree with you that calculus is required to find out.

@3DDave, 50 m x 20 m x 3.6 m.

Hi Guys, Our project has a compartment for temporary refugee. The purpose is to muster all the persons on the FPSO (a vessel) when there is emergency shut down. Design concept is to keep the room pressure to keep positive pressure 50 Pa after 60 mins from pressurization fans are stopping, the...

sensible heat gain is 108 kW.installed ahu is 103 kW@ 5.3 cmh. what will be the room temperature .100% return air system Thank u in advance

For me, prefer to use my own excel template to calculate the airflow, transmission heat gain. After that I would use ASHRAE Psychometric analysis CD Version to calculate the cooling and heating capacity

15 air change for marine

The system target evaporating temperature is -25'C. The target condensing temperature is 45'C. Cooling capacity is 6.5 kW. Motor is 7.5 kW.Compressor is open type Bitzer 2 N. If we consider the condensing capacity for this system, this will be (6.5 +7.5=14 kW). I have a doubt that once we start...

I am from marine sector and always use ISO8861

Thanks all, Finally I settle with the airchange 22/hr since I cant get the peak load of individual pumps.

For the Marine we used 42'DB Normally we use ISO8861 to calculate for engine room ie based on the outsuide temp and equipment load and neglect the airchange.Now that we cant get the equipment so that I think we need to base on the standard airchange rate.

Zesti, Thks for your interset .We cant get the peak heat load cos even the end user cant estimate how many percent of equipment will running at the same time.The max allowable temperature is 45'C.

Most likely to cooling down and there is not much fumes

Gents, Will glad if you lend me a hand to give an idea about the minimum airchange rate in offshore platform's pump room

Thanks Greg and Sompting guy, According to IMO 468 ,if there is no man occupancy should be 110dba,otherwise 90dba. Now can kindly let me get the equation to calculate if we use 50kg/m3 insulation,how about the result Regards Aung

Gents, Any suggestion for the acceptable maximum noise level in offshore engine room compartmen????? Regards Aung

Dear Gents, IS there any standard for the sizing the exhaust louvre for the emergency generator's radiator.Now the caterpillar generator personel asking for the 150% of the radiator cross sectional area.

Gents, What is the acceptable minimum mega ohm for the electric heater in AHU for marine projects?Now I have a problem in my project that our AHU has 3 stages heater.And then when we start testing the heater for 2 stages there is no problem.And then third stage running that time the alarm...

Dear Gents, I am very glad to get your interest for my question.Now the owner of my marine project asking for the sound disipiation from one toilet to another from the exhaust duct.From my point of view,there is a suction pressure in the duct and the sound from one toilet to another...

All, You gents pls help me to give a guideline to find the referigerant copper tube spec selection for the offshore unit.S it ASTM B280 is OK???

Gents, Could you kindly provide me an idea about S Curve Vs Project schedule Summary.