Significance of pressure
The cold and hot fluid inlet and outlet temperature and ΔP of the fluids across the heat exchangers are very significant in determination of the health of that heat exchanger. In condensers ΔP is shown as vacuum. Any increase in ΔP or decrease in vacuum is an indication of fouling […]
Significance of flow-rates
Flow-rates and any change in flow-rates have different effects on Q and U values. Following are the effects: Changes Effects If hot fluid flow rate is increased The ΔP of hot fluid across the heat exchanger will increase. The inlet P of hot fluid will increase The ΔT of hot […]
Methods of checking steam condenser performance
It is desirable to get a rated load or some agreed-upon load on the turbine which will be the same for each successive check and read the load, air leakage, inlet water temperature, outlet water temperature and the absolute pressure in the condenser, and convert the absolute pressure into the […]
Common conversion factors
1 ft = 0.3048 m = 30.48 cm 1 in = 2.54 cm = 0.0254 m 1 m = 3.2808 ft = 39.37 in = 1.0936 yd 1 km = 0.62137 mile 1 mm = 1000 microns 1 micron = 1/100000 m = 1/10000 cm 1 kg = 2.205 lb […]
Scotch Boilers
Scotch boilers (often referred to as scotch marine boilers) derive their name from the Scottish shipyards that built boilers for marine vessels for the British Navy. Old brick set boilers used to burn through the bottom of the ships. The “Scotch Marine” design featured a cylindrical vessel enclosing a totally […]