Roof panel tube is designed to connect with steam drum by using tube expander without seal weld. Our erection contractor installed two roof tubes (dia 1 1/4") to the drum by using seal weld wihtout our permit. Is there any damage to the drum metal structure? No heat treatment was provided before...
Is there any recommendation on NPSH available margin over NPSH required for condensate pump in power plant? Some designer give no margin, what's going to happen when the plant is in operation?
Steel structure for boiler column is bent after erection, it can be seen by our eyes. After measurement, it is clear that the column is offset at mid span between bracing points about 15 mm. Distance from one bracing piont to the other is 6,000 mm. It is stated in AISC that allowable off set is...
Our fire water system pressure is 17 Bar.g, we have some problems of selecting fire protection equipment such as deluge valve, fire hose etc. Let say fire hose, it is stated in technical data that maximum working pressure is 12 Bar.g but burst pressure is more than 30 Bar.g. The question is can...
Our power plant specification normally stated that motor 200 kW and larger shall be medium or high voltage type. We always have problems with the contractor when it comes to the decision whether medium voltage motor should be used when motor output is slightly higher than 200 kW (let say 220 kW...
Our boiler is 70 Bar.g/480 C 90 T/hr steam production is going to get hydrotest very soon but demin water plant is not yet ready for water production. Is it possible to use potable water (municilpal water)for hydrotest. Any recommendation is welcome.
Dear All
I want to sell chilled water to our customer, we will use energy metering system to measure energy absorbed by our customer. Can anybody recommend the type and accuracy of this metering system? Our chilled water flow rate is 4,500 m3/hr? This is to transfer cooling load of 12,500...
Dear All
We are planing for sell chilled water to our customer in the concession area. I wonder if we lost chilled water in custumer system, how can we charge them in terms of water and energy loss.
Regards
Pootong
Dear All
I got a outline and detail arrangement of the condenser to be installed in one of our biomass power plant. Please let me know if anyone can suggest me how to estimate the pressure drop accoss condenser. The following data is available now.
1. Condenser tube diamter, length and...
Dear All
This is my first time posting my question on this Eng-Tips, I got screw pumps installed in our new power plant. I would like to know how to make an performance acceptance test. According to API676 there is no detail criteria for this. For example; pump head, flow rate, efficiency and...
