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How can exhaust gas be recovered in the induced draught?

How can exhaust gas be recovered in the induced draught? Correct Answer By installing air preheater and economizer along the gas path

The heat in exhaust gases can be recovered as much as possible by installing an air preheater and economizer along the gas flow path. As the draught produced in this system is independent of flue gas temperature care should be taken such that the fan handles gas at its lowest possible temperature.

Related Questions

In a newly developed innovative idea brought up by CSIR in India, gas turbine exhaust gas are being utilized to convert feedwater into steam. Certain data of the experiment are as follows: mass flow rate of exhaust gas = 40 kg/hr, enthalpy of exhaust gas at the time of their exit from gas turbine is 600 kJ/kg, steam turbine output as measured by brake dynamometer = 60 hp-sec, thermal efficiency of steam power plant is 0.25, efficiency of exhaust gas in converting feedwater into steam is taken as 50%. Find the enthalpy of exhaust gas remaining after they generate steam from feedwater?
For the same draught produced the power of induced draught fan as compared to forced draught fan is
Power required in case of forced draught as compared to induced draught (for the same draught produced) is
Oxides of nitrogen in Petrol engine exhaust can be reduced by the following methods: 1. Use of 5% lean mixture 2. Advancing the spark timing 3. Recirculating a fraction of exhaust gas 4. Using an oxidation catalyst in the exhaust manifold Which of the above statements is/are correct?
Oxides of nitrogen in the engines exhaust can be reduced by the following methods:
1. Decrease in compression ratio
2. Exhaust gas recirculation
3. Use of 5% lean mixture
4. Use of oxidation catalysts in exhaust manifold.
The correct methods are
Oxides of nitrogen in Petrol engine exhaust can be reduced by the following methods:
1. Use of 5% lean mixture
2. Advancing the spark timing
3. Recirculating a fraction of exhaust gas
4. Using an oxidation catalyst in the exhaust manifold
Which of the above statements is/are correct?
In a furnace employing forced draught as compared to induced draught,
Why is induced draught considered better than the forced draught?
In a furnace employing forced draught compared to induced draught __________
The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as