An insulated steam pipe having outside diameter of 30mm is to be covered with two layers of insulation, each having thickness of 20mm. the thermal conductivity of one material is 5 times that of the other. Assuming that the inner and outer surface temperatures of composite insulation are fixed, how much will heat transfer be increased when better insulation material is next to the pipe than it is outer layer?
anyone solve this numerical
Answers
Answer:
Rohini is a series of satellites launched by the Indian Space Research Organisation (ISRO). The Rohini series consisted of four satellites, each of which was launched by the Satellite Launch Vehicle (SLV)[1] and three of which made it successfully to orbit. The series were mostly experimental satellites.
Rohini
Manufacturer
[ISRO]
Country of origin
India
Operator
ISRO
Applications
Experimental Satellites
Specifications
Design life
8
Launch mass
30–41.5 kilograms (66–91 lb)
Dimensions
360
Power
3 watts (RTP)
16 watts (others)
Equipment
Launch Vehicle monitor
Solid State camera(RS-D2)
Regime
400km Circular Low Earth
Dimensions
Production
Status
Retired
Launched
4
Retired
2
Lost
2
Maiden launch
RTP
10 August 1979
Last launch
Rohini RS-D2
17 April 1983
Last retirement
Rohini RS-D2
Related spacecraft
Derived from
6
Derivatives
5