Boiler Chimney Design Calculation

Al moiz industries ltd project.

Boiler chimney design calculation.

Altitude refer to table 2 for appliance outlet temperatures. 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. Thermodyne chimney draft calculator. 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.

Boiler stack diameter project title. 2 x 80tph 65 barg 480 0c client. 5 0 design calculations load data 1 00 281 53214 boiler foundation plan sketch. Using desired steam parameters calculate the enthalpy of steam to be generated.

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. 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. 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. Chimney height is measured in m.

M mean chimney temperature ºf 460 refer to table 1 for barometric pressure vs. Design velocities of larger furnaces should not exceed 10 m s. The design of the steel stack or chimney is important from the diesel genset performance as well as air pollution point of view. 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. 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. T theoretical draft inches of water b barometric pressure inches of mercury h effective height of chimney feet t. Design calculation sheet for.

A q v 3 where. Calculation of burner heat duty and fuel firing rate. O outside temperature ºf 460 t. Chimney vent capacity chart btu h and kw.