Boiler Chimney Design Calculation

Chimney height is measured in m.

Boiler chimney design calculation.

Boilers or furnaces equipped with induced draught fans should have a chimney efflux velocity of not less than 8 m sec at full load for boilers rated up to 13 600 kg hour increasing to a maximum of 15 m sec at full load for boilers rated at 204 000 kg hour. Figure 1 quantity unit dia of stack d 6 00 m dia. 4 3 boller efticiedcy the ratio of heat used in the boiler to. Height of chimney draft developed by chimney is directly proportional to the height of the industrial chimney so height the chimney more will be the draft.

Design calculation sheet for. 2 x 80tph 65 barg 480 0c client. Design velocities of larger furnaces should not exceed 10 m s. T theoretical draft inches of water b barometric pressure inches of mercury h effective height of chimney feet t.

Calculation of burner heat duty and fuel firing rate. Of raft d 13 00 m area of raft a 3 14 xdxd 4 132 67 m 2 section modulus z 3 14xdxdxd 32 215 58 m 3 height of soil above raft h 4 00 m thickness of the raft t 2 00 m height of pedestal h1 4 50 m. O outside temperature ºf 460 t. Design and construction of steel chimney code of practice part t mechanical aspect first revision 1 scope 4 terminology 4 2 blaakiagoffplate an imperforate plate fitted immediately beneath the inlet of a chimney to prevent the waste gases reaching the lowerportion of the chimney.

View stack sizeing xls from chemistry 344 at nanjing university. Boiler stack diameter project title. Thermodyne chimney draft calculator. A q v 3 where.

Al moiz industries ltd project. Multiplying enthalpy with the rated steam generation obtain the total heat value of steam at rated steaming boiler heat duty boiler heat duty is expressed as mkcal hr or mw or hp. While doing the flue gas steel stack design calculations you should consider the design formulas and local pollution control norms. A cross sectional area of chimney m 2 q volume of flue gases at chimney temperature m 3 s v velocity m s in general 1 kw boiler heat requires 1100 mm 2 of chimney area.

5 0 design calculations load data 1 00 281 53214 boiler foundation plan sketch. Chimney vent capacity chart btu h and kw. Required chimney area can be calculated as. Altitude refer to table 2 for appliance outlet temperatures.