A sphere made of copper having 10 mm inner diameter is placed to an environment at...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A sphere made of copper having 10 mm inner diameter is placed to an environment at 75°C. When the sphere is removed from this environment and exposed to air flow at atmospheric pressure (1 atm). The velocity of air is 10 m/s with a temperature of 23 °C. Eventually the temperature of the copper become 35°C. Calculate the heat transfer coefficient. @328K,copper →p=8933kg/m³,k=399W/mK, cp = 387J/kgK @296K, air →μ=181.6×10 7 Ns/m², k = 0.0258W/mK, Pr = 0.709 @328 K, air → u=197.8x107 Ns/m² A sphere made of copper having 10 mm inner diameter is placed to an environment at 75°C. When the sphere is removed from this environment and exposed to air flow at atmospheric pressure (1 atm). The velocity of air is 10 m/s with a temperature of 23 °C. Eventually the temperature of the copper become 35°C. Calculate the heat transfer coefficient. @328K,copper →p=8933kg/m³,k=399W/mK, cp = 387J/kgK @296K, air →μ=181.6×10 7 Ns/m², k = 0.0258W/mK, Pr = 0.709 @328 K, air → u=197.8x107 Ns/m²
Expert Answer:
Answer rating: 100% (QA)
To calculate the heat transfer coefficient we can use the Newtons Law of Cooling equation which rela... View the full answer
Related Book For
Intermediate Accounting
ISBN: 978-0132162302
1st edition
Authors: Elizabeth A. Gordon, Jana S. Raedy, Alexander J. Sannella
Posted Date:
Students also viewed these accounting questions
-
Roth Contractors Corporation was incorporated on December 1, 2019. Required: Part A 1 Prepare journal entries to record the December transactions shown on page "Transactions Pt. A". General ledger...
-
In preparing for the upcoming holiday season, Fresh Toy Company (FTC) designed a new doll called The Dougle that teaches children how to dance. The fixed cost to produce the doll is $100,000. The...
-
One Wiser Corp. had the following transactions during the first month of business. Journalize the transactions. August 2 nvested $12,000 cash and $2,500 of equipment in the business in exchange for...
-
West State Furniture (WSF) manufactures desks and desk chairs using two departments within a single facility. The West Department produces the desks, and the State Department produces the chairs. WSF...
-
Refer to Problem 67. If the current price of an order of fries is $1.29, will a 10% price decrease cause revenue to increase or decrease? Problem 67 The price-demand equation for an order of fries at...
-
Jong-Il was feeling depressed and anxious. His therapist gave him a depression test (M =10, s = 3, higher scores mean more depression) and an anxiety inventory (M = 80, s = 25, higher scores mean...
-
Consider two binomial assets, each with price equal to 1. The first is a stock that at the end of a period pays either 3 or 0 with probabilities \(p\) and \(1-p\), respectively. The second asset is...
-
In 2014, an 1874 $20 double eagle sold for $15,000. What was the rate of return on this investment?
-
If the beginning retained earnings balance is $5,900, net income is $4,000, and ending retained earnings is $6,700, what is the amount of dividends paid?
-
Sarah Smith is the marketing manager for Activa. She decides to run a sales promotion to boost the brand's business and is interested in evaluating the success of the promotion. The following is key...
-
9. A car is driving from Airdrie to Calgary at a speed of 34m/s. If the drive takes 4.5 minutes, what is the distance from Airdrie to Calgary? (3 marks)
-
Determine the cost-effectiveness of adding a dimming daylighting control system to a thin two-story office building (each floor is 24 ft 1,000 ft) with a window-to-floor area ratio of 30 percent....
-
You want to buy a new machine that will last 20 years and cost $200,000. Determine how much money you should pay for this machine each year based on equal annual payments: a. If the interest rate is...
-
Two chillers are proposed to cool an office space. Each chiller has a rated capacity of 300 tons and is expected to operate 650 full-load equivalent hours per year. Chiller A has a standard...
-
A company is on the utility rate structure defined as level 1 in Problem 2.5 , In auditing a company, you find it averaged as 65 percent power factor over the past year. It is on the rate schedule...
-
Determine the capacitor ratings (in kVAR) to add to an 80 hp motor with an efficiency of 0.85 to increase its power factor from 0.80 to 0.85, 0.90, and 0.95, respectively.
-
CathFoods will release a new range of candies which contain antioxidants. New equipment to manufacture the candy will cost $2 million, which will be depreciated by straight-line depreciation over six...
-
The financial statements of Eastern Platinum Limited (Eastplats) are presented in Appendix A at the end of this textbook. Instructions (a) Does East plats report any investments on its statement of...
-
Assume Shafer Corporation borrowed $ 100,000 for two years with a stated interest rate of 5%. Interest is not compounded. What is the total interest expense?
-
In January 2015, a customer filed a lawsuit against Fireens Boutique. The customer fell on an icy patch in the stores parking lot and broke an ankle in December. Fireens fiscal year- end is January...
-
Using the information provided in BE14- 18, prepare the amortization table for the first two years, assuming Stark uses the straight- line method. In BE14-18 Using the information provided in BE14-...
-
In Figure 31. 27, bulb E is brighter than bulb D. Which bulb has \((a)\) the greater potential difference across it, \((b)\) more current in it, and \((c)\) more resistance? Data from Figure 31. 27 D...
-
In Figure 31. 28, which of the three bulbs \(F, G\), and \(H\) light up? Data from Figure 31. 28 (e) H
-
A thick resistor and a thin resistor of the same length and material are connected in series, as shown in Figure 31. 29. Which resistor has \((a)\) the greater potential difference across it and...
Study smarter with the SolutionInn App