3. Solar radiation heats the surface after sunrise, and the resulting heat flux F to the atmosphere isapproximated by2T(t – tnoon)F = Fcos6 a.m. < t< 6 p.m.maxAt

To given thatF=Fmaxcos2π(t-tnoon)∆t ......(1)where, Fmax=300Wm-2…

Answered: proximated by 2n(t- tnoon) At F =…

Engineering

Mechanical Engineering

proximated by 2n(t- tnoon) At F = Fmaxcos-

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter48: Cooling Towers And Pumps

Section: Chapter Questions

Problem 13RQ

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Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

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3. Solar radiation heats the surface after sunrise, and the resulting heat flux F to the atmosphere is
approximated by
2T(t – tnoon)
F = F
cos
6 a.m. < t< 6 p.m.
max
At

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