Question

In: Mechanical Engineering

A chicken house (20' x 10'x 8') with walls and roof with R-value = 5 hr...

A chicken house (20' x 10'x 8') with walls and roof with R-value = 5 hr oF ft2/BTU.

There are 2 wooden doors ( 80” x 36”) with an R-value of 2.5 hr ºF sq.ft/BTU.

The inside temperature is held at 35oC and the exterior temperature is 20oF.

There are 19 chickens in the house with a body temperature of 42oC that can be assumed to radiate as a sphere with a 14" diameter and a emissivity of 0.85.

PART A. Calculate the Heat generation by the chickens in BTU/hr.

Select one:

a. 99.05 BTU/hr

b. 1223 BTU/hr

c. 1040 BTU/hr

d. 1.209e4 BTU/hr

e. 3.440e4 BTU/hr

f. 3276 BTU/hr

Solutions

Expert Solution


Related Solutions

Home is where the Heat is The walls of a house are made of a 10...
Home is where the Heat is The walls of a house are made of a 10 cm layer of brick, 10 cm of fiberglass insulation and 1cm of drywall. Thermal conductivity values: Brick: 1.31 W/m*K Fiberglass : 0.04 W/m*K dry wall : 0.17 W/m*K a) Calculate the thermal conductivity of a 1 m 2 section of wall. b) Find the relationship between the thermal conductivity, k, in W/m*K and the thermal resistance = R in (m^2 *K)/W. In order to...
The average house has 10 paintings on its walls. Is the mean smaller for houses owned...
The average house has 10 paintings on its walls. Is the mean smaller for houses owned by teachers? The data show the results of a survey of 13 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 8, 9, 10, 10, 8, 10, 9, 8, 11, 10, 7, 7, 7 What can be concluded at the α = 0.10 level of significance? For this study, we should use...
The average house has 10 paintings on its walls. Is the mean smaller for houses owned...
The average house has 10 paintings on its walls. Is the mean smaller for houses owned by teachers? The data show the results of a survey of 14 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 7, 11, 8, 10, 10, 7, 7, 7, 11, 10, 7, 8, 10, 7 What can be concluded at the αα = 0.10 level of significance? For this study, we should...
A box contains 20 chips. 8 of these chips have a value of $5 and the...
A box contains 20 chips. 8 of these chips have a value of $5 and the others have no value. We randomly pick 3 chips from the box and putting them back after each draw. A = Number of chips of $5 after 2 draws. What is the distribution of A?
Find the solution of the initial-value problem X′(t) = ( −8 −5 5 2 )X X0...
Find the solution of the initial-value problem X′(t) = ( −8 −5 5 2 )X X0 = ( 0 1)
3               Purchased chicken and eggs from Josie’s Chicken House,P 6,000 list price. Terms: Cash less 5% trade...
3               Purchased chicken and eggs from Josie’s Chicken House,P 6,000 list price. Terms: Cash less 5% trade discount plus VAT. is the journal entry for this one this or not?? Purchases 6,000 Input Tax 684 Accounts Payable 6,384 Purchase Discount 300
Smith purchases a 20 year, 8%, $1000 face value bond with a yield rate of 10%....
Smith purchases a 20 year, 8%, $1000 face value bond with a yield rate of 10%. After the 10th coupon he sells the bond. If the new buyer keeps the bond until maturity (at which time she will receive the face value redemption and her last coupon) and her actual semiannual yield rate is also 10% then find her purchase price.
x 4 5 6 8 10 y 3.4 4.2 6.3 10.9 13.3 a) Use the (x',...
x 4 5 6 8 10 y 3.4 4.2 6.3 10.9 13.3 a) Use the (x', y') data points and a calculator with regression keys to find the least-squares equation y' = a + bx'. What is the correlation coefficient? (Use 3 decimal places.) y' = _____ + _____ x' r = b) Use the results of part (b) to find estimates for α and β in the power law y = αxβ. Write the power equation for the relationship...
5. (a) Let f : R \ {−1} → R, f(x) = x+1. Show that f...
5. (a) Let f : R \ {−1} → R, f(x) = x+1. Show that f is injective, but not surjective. (b) Suppose g : R\{−1} → R\{a} is a function such that g(x) = x−1, where a ∈ R. Determine x+1 a, show that g is bijective and determine its inverse function.
A concrete masonry unit has actual gross dimensions of 7-5/8” x 7-5/8” x 7-5/8”. The unit...
A concrete masonry unit has actual gross dimensions of 7-5/8” x 7-5/8” x 7-5/8”. The unit is tested in a compression machine with the following results:             Failure load = 98,000 lb             Net volume = 348.1 in3 Is the unit categorized as solid or hollow? Calculate the gross area compressive strength. Calculate the net area compressive strength. please answer by typing, i will rate your answer. thanks
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT