Performance evaluation of shell-and-tube heat exchangers: a numerical approach

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Performance evaluation of heat exchangers is generally based on a number of idealized assumptions. In this work, an attempt has been made to investigate the effect of neglecting the presence of nonideal conditions on heat exchanger rating, testing and performance projections. Representative nonideal conditions such as the variation of fouling resistance along and across the tubes, maldistribution of flow, temperature dependent variation of fluid properties and plugged tubes are simulated on a one-pass, counterflow shell-and-tube heat exchanger using a numerical method of solution. The apparent nature of the test fouling resistance is demonstrated and an estimate of the errors introduced on using it for performance projections is made. An analysis of the uncertainty involved in heat exchanger rating, testing and performance projections is conducted and the characteristics of apparent fouling resistance are studied in the context of the overall uncertainty. The effect of typical input variable uncertainties on the uncertainty of key performance parameters such as heat transfer rate, terminal temperatures and fouling resistance is evaluated. Principal uncertainty contributors are identified and methods of reducing the overall uncertainty are discussed.

روابط وملفات

التعريف والنوع

رقم الوثيقة

060a0d8b-0625-491c-b6ab-4201434b52f4

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

850225_1.pdf

بيانات النشر

ترجمة العنوان

طريقة عددية لتقييم أداء المبادلات الحرارية ذات الأسطوانة والأنبوب

ألقاب المؤلفين

[{"name_ar":"Irfan Saif Hussaini ","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Lindon Thomas ","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Performance evaluation of shell-and-tube heat exchangers: a numerical approach

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

Heat Exchangers, Performance Evaluation, Fouling Resistance, Uncertainty Analysis, Numerical Simulation, Shell and Tube Heat Exchanger.

إشراف وإعداد

الإشراف

Lindon Thomas

الإعداد

Irfan Saif Hussaini

الاقتباسات الببليوغرافية