Illustrate the general design of waste heat boilers, Managerial Accounting

Assignment Help:

Illustrate the General Design of Waste heat boilers

The boiler system shall be made up of a fire tube type heat exchanger, a steam drum with relief valve internals, risers and downcomers.

The required quantity and conditions of steam and all pertinent operating conditions are specified in the Design Data Sheets for the boiler.  Performance of boiler shall meet all requirements over the range of ambient temperatures as specified in the above mentioned data sheets.  The quantity, composition and temperatures of inlet gas are as specified.

Unless otherwise stated on the data sheet the fouling resistance's shall be 0.00044 m2 c/w (0.0025 hr.ft2 o F/BUT) for the tube side and 0.00176 m2 c/2 (0.011hr.ft2 o F/BTU) for the shell side.

The waste heat boiler (WHB) shall be designed as a horizontal fire-tube type thermasyphone using risers and downcomers with integrally supported steam drum.  A single pass acid gas operating with a single steam drum unit is required.  The maximum allowable pressure drop in the tubeside shall be limited to 3.45 kPa (0.5 psi).

The shell and tube side design of the heat exchanger shall be such that only nucleation-type boiling shall be present throughout the entire length of tubes under all rates of flow from the minimum turn down to a maximum design flow.  Vapor blanketing shall be avoided by providing sufficient tube pitch for vapor escape maintaining a circulation ratio of average value of 15:1 with minimum individual value of 12:1, supported by calculations.

The boilers shall be designed for a load moving of 20% MCR from minimum flow to peak rate without upset or solid carryover in the stem of more than 1 ppm.

 


Related Discussions:- Illustrate the general design of waste heat boilers

Cost, Stellar Packaging Products and its primary customer, Estrella Coffee,...

Stellar Packaging Products and its primary customer, Estrella Coffee, are deciding on appropriate costing systems for their operations. Stellar Packaging Products’ manufacturing is

Time series analysis, what is semi average trend analysis using regression ...

what is semi average trend analysis using regression analysis method?

Steady state condition, Steady state condition In many cases, the Marko...

Steady state condition In many cases, the Markov process will converge to a steady state or equilibrium. In general, as number of transitions `n' increase, the state values

Critique of performance measurement, Critique of Performance Measurement ...

Critique of Performance Measurement This section brings together material from preceding data in this lesson in order to provide a critical appraisal of performance measurement

Sales, Ask question #MinimumYears Purchase Costs Running cost discount fact...

Ask question #MinimumYears Purchase Costs Running cost discount factor 8% Running cost Savings PVS 0 -7000 -7000 1 2000 0.926 1852 5556 3704 2 2500 0.857 2142.5 5999 3856.5

What are the characteristics of product life cycle, Characteristics of prod...

Characteristics of product life cycle The major characteristics of life-cycle concept are as follows: 1) The products have finite live and pass by the cycle of development i

MOH Cost Help, During the year the company worked a total of 145,900 machin...

During the year the company worked a total of 145,900 machine-hours on all jobs and incurred actual manufacturing overhead costs of $1,305,346. What is the amount of underapplied o

Evaluate marginal cost, 1. If the marginal cost of producing a good is incr...

1. If the marginal cost of producing a good is increasing as a firm produces more of the good, then which of the following must be true? a. AFC is rising               b. AVC i

Decision making process, Decision Making Process Decision making is the...

Decision Making Process Decision making is the process of choosing among alternatives. There are 7 steps that should be followed as shown in figure below:   Figure:

CVP, What is cvp?

What is cvp?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd