subject
Engineering, 18.02.2020 04:44 Uniquestudies

A square silicon chip would be damaged if its surface temperature exceeds 50C. A cooling fan blows air at 20C over the chip. This causes forced convection heat transfer. Convection heat transfer coefficient is calculated to be 100 W/m²K (you will learn how to calculate this coefficient in Heat Transfer course, ME3710). The chip needs an electrical input power of 0.2 W to operate. Assuming steady state, design the geometry of this chip to prevent any damage. Note that minimizing the dimensions is always an objective of engineering designs, as it reduces costs and occupied space.

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
question
Engineering, 04.07.2019 18:10
The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m
Answers: 2
question
Engineering, 04.07.2019 19:10
Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?
Answers: 3
question
Engineering, 04.07.2019 19:10
What are the major differences between injection molding and extrusion?
Answers: 2
You know the right answer?
A square silicon chip would be damaged if its surface temperature exceeds 50C. A cooling fan blows a...
Questions
question
Mathematics, 14.01.2020 04:31
question
Spanish, 14.01.2020 04:31
question
Mathematics, 14.01.2020 04:31
Questions on the website: 13722363