johhnyappleseed4376 johhnyappleseed4376

03-09-2019
Engineering

contestada

What is the MINIMUM capacity, in kW, required to heat 1,000 cfm (472 L/s) from 65°F (18.3°C) to 95°F (35.0°C)? A. 2 B. 10 C. 20

Respuesta :

fabianb4235 fabianb4235

09-09-2019

Answer:

B.10Kw

Explanation:

use this formula

Q=V*ρ*Cp*(T2-T1)

Q=power

V=volume flow

ρ=density for air ρ=1.225kg/m^3

Cp=especific heat for air Cp=1.005 KJ/(kgK)

T2=final temperature

T1=initial temperature

Q=0.472*1.225*1.005(35-18.3)=9.7Kw≈10Kw

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jacoblovelace jacoblovelace

06-02-2020

B. would be the correct answer, let me know if im wrong

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