Answer:
(a)The mass flow rate =
2.297×10^6 lb/HR
(b)the rate of heat transfer =2700.847×10^6Btu/hr
(c)thermal efficiency is 37.025%
Check attachments for calculation
Answer:
I. 3.316 kW
II. 1.218 kW
III. 2.72
Explanation:
At state 1, the enthalpy and entropy are determined using the given data from A-13.
At P1 = 200kpa and T1 = 0,
h1 = 253.07 kJ/kg
s1 = 0.9699 kJ/kgK
At state 2, the isentropic enthalpy is determined at P2 = 1400kpa and s1 = s2 by interpolation. Thus
h2(s) = 295.95 kJ/kg
The actual enthalpy is then gotten by
h2 = h1 + [h2(s) - h1]/n
h2 = 253.07 + [295.95 - 253.07]/0.88
h2 = 253.07 + 48.73
h2 = 301.8 kJ/kg
h3 = h4 = 120.43 kJ/kg
Heating load is determined from energy balance, thus,
Q'l = m'(h1 - h4)
Q'l = 0.025(253.07 - 120.43)
Q'l = 0.025 * 132.64
Q'l = 3.316 kW
Power is determined by using
W' = m'(h2 - h1)
W'= 0.025(301.8 - 253.07)
W'= 0.025 * 48.73
W'= 1.218 kW
The Coefficient Of Performance is Q'l / W'
COP = 3.316/1.218
COP = 2.72
Answer: information security managers
Explanation:
Information security managers is an individual in charge of making sure that company's or organization's equipments such as computers, network, data etc are protected against security breach, computer viruses, hackers, etc. The person also keep assets in confidentiality, integrity, and makes them available when needed. Failure to do this might lead to the loss of confidential data, security breach, cyber crimes, etc which will cause a serious set back in a company's operations especially in the information and technology department, it might also lead to fine sanctions from regulatory body for the failure to protect data, it will also lead to financial loss,etc.
The tari's total standard machine-hours allowed for last year's output 600,000 hours
Budgeted at start of year: $100,000 fixed manufacturing overhead for 500,000 machine hours
Standard = $100,000 / 500,000 hours = $0.2 fixed overhead / maching hour
At end of year, manufacturing overhead volume was $20,000 favorable which means
$20000 / $1=0.2 = 100000 additional hours.
Total Standard Machine Allowance Allowed for output = 500,000 + 100,000 = 600,000 hours.
the use of one machine running for an hour as a basis for cost estimation and operating effectiveness evaluation. In order to determine the contribution margin per machine hour for a specific product: a. Total cost per unit divided by the quantity of machine hours required to produce each unit of the target product. The manufacturing overhead cost divided by the activity driver yields the predetermined overhead rate. For instance, if machine hours were the activity driver, you would divide overhead costs by the anticipated number of machine hours.
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