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

Advantages and limitations of game theory, Advantages and limitations of ga...

Advantages and limitations of game theory Advantage: Game theory helps us to learn how to approach and understand a conflict situation and to improve the decision maki

What is kaizen, What is kaizen Kaizen is the Japanese term for continuo...

What is kaizen Kaizen is the Japanese term for continuous improvement. The kaizen concept was pioneered by in Japan by Toyota as daily challenge to all its to improve their pro

Activity –based techniques, Explains how activity –based techniques can be ...

Explains how activity –based techniques can be used to improve performance

Explain the interest coverage ratio, Interest coverage ratio (or debt servi...

Interest coverage ratio (or debt service ratio)  Meaning: this ratio establishes a relationship among net profits before interest and taxes and interest on long debt. Obj

What are the 7 feed from control to planning, 7 feed from control to planni...

7 feed from control to planning It is realized these days more than even before that management control is primarily a human activity which should focus on how to help individu

Case study, 1 Describe the impact of different types of standards on motiva...

1 Describe the impact of different types of standards on motivations, and specifically, the likely effect on motivation of adopting the labor standard recommended for Geeta & Compa

Standard error of estimate , Standard error of estimate (Se) The coeffi...

Standard error of estimate (Se) The coefficient of determination r 2 gives us an indication of the reliability of the estimate of total cost based on the regression equation b

The board of a company decides that the strategic objectives, The board of ...

The board of a company decides that the strategic objectives of the company should be: * to become established as the best in its field * to be the largest in its market Comment on

Homework.., given the above data what would the breakeven in units and doll...

given the above data what would the breakeven in units and dollars be if u wanted a necessary after tax profit of $ 36,000 (assume a 30% tax rate ) units __________ ales dollars _

Organizing-motivation-role of management accountant, Organizing (1) It is...

Organizing (1) It is the establishment of the framework within which the required activities are to be performed and the designation of who should perform such activities. It inc

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