tomatge
Industrial
- Apr 11, 2002
- 93
I operate a land based power station using slow speed marine diesel engines operating on heavy fuel oil (3500sec Redwood). We have about 11,000 tonnes of storage in steam heated tanks of capacity 1000 - 4500 tonnes. Historically, we have maintained the tank temperatures at about 50 degC. Additionally there are outflow heaters. Steam was produced from exhaust gas boilers, and hence effectively "free".
Now the power station runs intermittently, we have to generate steam using package boilers - steam is no longer free, in fact its quite an expensive commodity.
Hence my question ... is it necessary to maintain temperature at 50 degC, and how low can I allow the temperature to drop and still be able to start and run the power station in an emergency.
Naturally I could do various calculations etc. but I was also looking for some practical advice on what happens elsewhere.
Now the power station runs intermittently, we have to generate steam using package boilers - steam is no longer free, in fact its quite an expensive commodity.
Hence my question ... is it necessary to maintain temperature at 50 degC, and how low can I allow the temperature to drop and still be able to start and run the power station in an emergency.
Naturally I could do various calculations etc. but I was also looking for some practical advice on what happens elsewhere.