Boiler Control Course Archives - Industrial Instrumentation and Automation

3.8 Combustion control in recovery boilers

Objective The objective of combustion control in a recovery boiler is, as in the case of an industrial boiler, to maintain the fuel flow rate in accordance with the

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3.7 Draft control in a boiler

Objective The objective of this loop is to maintain the combustion chamber pressure within a narrow band around the set point to ensure satisfactory combustion as well as a

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3.6 Combustion control in boilers

Objective In accordance with the requirements of NFPA 8502, a combustion control system must comply with, among others, the following design requirements(1): – Combustion control

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3.5 Boiler Demand Control

Objective The objective of this loop is to generate a load demand signal for the burners that maintains the balance between the energy delivered and supplied by the system.

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3.4 Boiler steam temperature control

Objective: There are boilers whose production is saturated steam, such that the steam temperature is determined by the operating pressure, as these variables are directly related. There are also

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3.3 Boiler feedwater level control

Considerations Regarding Measurements: The measurement of the pressure tank level is usually done using differential pressure transmitters (Figure 3-14). This measurement is based on the pressure difference generated by the

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3.2 Auxiliary controls of a boiler

3.2.1 Fuel Oil Pressure Control Objective The objective of this loop is to maintain the fuel oil supply pressure at its appropriate value. Maintaining the pressure

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3.1 Boiler Control – Introduction

A boiler control system is the tool used to achieve mass and energy balance in the boiler in response to variations in temperature.

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2.4 BPS-BMS for heat recovery boilers

The design and functional requirements of the safety system in a heat recovery boiler are analogous to those discussed for an industrial boiler. Even most of the sequences

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2.3 BMS for industrial boilers (Burner Management Systems)

2.3.1 Design Requirements The following design requirements are taken from the requirements of NFPA 8502. The BMS shall be designed so that an individual failure

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