Engineering, 14.06.2020 14:57 pado4776
QUESTION 1
The benefits of technology transfer have been beset with myriads of problems ranging from excessive
consumption of significant percentage of the world primary resources to the generation of large
percentage of solid waste and pollution. Product design is closely related to environmental
degradation. In response to these impacts, there is growing interest among organizations committed to
environmental performance targets in recommending sustainable design and manufacture practices
and in encouraging future reduction in GHGs emissions partly responsible for global warming
phenomenon. To this backdrop:
1a) Discuss in detail the effect of repair design on the environment
(UN-5marks)
1b) Describe the effect of Re-design on the environment
(UN-5marks)
1c) Describe a measure to prevent undesired results in situations “1a” and “1b”
(
Answers: 1
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
Engineering, 04.07.2019 18:10
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:10
For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
Answers: 3
QUESTION 1
The benefits of technology transfer have been beset with myriads of problems ranging fro...
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