Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
For your company you need to mass produce 20-cm×10-cm heat sinks to dissipate heat quickly from an equipment. After considering several other parameters, you have short-listed two possible designs: A. 72 straight pin fins made of an alloy (thermal conductivity 240 W/m°c) that costs $9,000 per m³. Each pin is 4 cm long and 1-cm diameter. E518 5 $2.04 B. 64 straight rectangular fins made of another alloy (thermal conductivity 180 W/m°c) that costs $12,000 per m³. Each pin is 4 cm long and has 2-cmx1-cm cross-section. = 7.94 ; $6·14 The convection coefficient of the operating condition is approximated as 15 W/m².°c. Consider that the manufacturing cost is same for both designs but the material cost differs. Calculate and compare the cost and performance (in terms of heat transfer gains by the heat sinks) of the two heat sinks so that a decision can be made to select a design.

For your company you need to mass produce 20-cm×10-cm heat sinks to dissipate heat quickly from an equipment. After considering several other parameters, you have short-listed two possible designs: A. 72 straight pin fins made of an alloy (thermal conductivity 240 W/m°c) that costs $9,000 per m³. Each pin is 4 cm long and 1-cm diameter. E518 5 $2.04 B. 64 straight rectangular fins made of another alloy (thermal conductivity 180 W/m°c) that costs $12,000 per m³. Each pin is 4 cm long and has 2-cmx1-cm cross-section. = 7.94 ; $6·14 The convection coefficient of the operating condition is approximated as 15 W/m².°c. Consider that the manufacturing cost is same for both designs but the material cost differs. Calculate and compare the cost and performance (in terms of heat transfer gains by the heat sinks) of the two heat sinks so that a decision can be made to select a design.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
See similar textbooks
icon
Related questions
Question

no previous attempt please

For your company, you need to mass-produce 20-cm×10-cm heat sinks to dissipate heat quickly from an equipment. After considering several other parameters, you have shortlisted two possible designs: A. 72 straight pin fins made of an alloy (thermal conductivity 240 W/m·°C) that costs $9,000 per m³. Each pin is 4 cm long and 1-cm diameter. Efficiency (ε₀) = 5.18; Cost = $2.04 B. 64 straight rectangular fins made of another alloy (thermal conductivity 180 W/m·°C) that costs $12,000 per m³. Each pin is 4 cm long and has a 2-cm×1-cm cross-section. Efficiency (ε₀) = 7.94; Cost = $6.14 The convection coefficient of the operating condition is approximated as 15 W/m²·°C. Consider that the manufacturing cost is the same for both designs, but the material cost differs. Calculate and compare the cost and performance (in terms of heat transfer gains by the heat sinks) of the two heat sinks so that a decision can be made to select a design.
Transcribed Image Text:For your company, you need to mass-produce 20-cm×10-cm heat sinks to dissipate heat quickly from an equipment. After considering several other parameters, you have shortlisted two possible designs: A. 72 straight pin fins made of an alloy (thermal conductivity 240 W/m·°C) that costs $9,000 per m³. Each pin is 4 cm long and 1-cm diameter. Efficiency (ε₀) = 5.18; Cost = $2.04 B. 64 straight rectangular fins made of another alloy (thermal conductivity 180 W/m·°C) that costs $12,000 per m³. Each pin is 4 cm long and has a 2-cm×1-cm cross-section. Efficiency (ε₀) = 7.94; Cost = $6.14 The convection coefficient of the operating condition is approximated as 15 W/m²·°C. Consider that the manufacturing cost is the same for both designs, but the material cost differs. Calculate and compare the cost and performance (in terms of heat transfer gains by the heat sinks) of the two heat sinks so that a decision can be made to select a design.
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Convection
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY
SEE MORE TEXTBOOKS