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 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

Answer Link
jacoblovelace
jacoblovelace jacoblovelace
  • 06-02-2020

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

Answer Link

Otras preguntas

Who is Governer of FL?
PLEASE HELP ME RIGHT NOW PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! --INCLUDING LOUISIANA AND MI
How many grams are in 238 moles of arsenic
There are several types of tissues found in plants. Two examples are ________ tissue and _______ tissue
The Peloponnesian War lasted for almost?
Equivalent mixed number for: 21/8 = ?
Why weren't the serfs' plots truly their own
there are 8 pencils in a package. how many packages will be needed for 28 children if each child gets 4 pencils
A heater with an effective resistance of 4.8 ohms is connected to 240.0 volts if it operated approximately 25% of the time and electricity costs $0.10 per kWh w
Solve for x. 4x-5/y=2z