1 answer

# Here is the energy analysis of the hydronic heating system depicted in the diagram. The boiler...

###### Question:

Here is the energy analysis of the hydronic heating system depicted in the diagram.

The boiler plant consists of two identical boilers, each having the following characteristics:

• Fuel: natural gas

• Burner Type: on/off

• Rated Output = 85 kW

• Rated Efficiency, nFL = 80%

The boilers operate in a “Lead/Lag” arrangement, i.e., Boiler 1 operates first to meet the load (up to its capacity), and Boiler 2 operates as necessary to meet any remaining load.

The pump and motor have the following characteristics:

• Flow Rate = 15 L/s

• Pressure Rise = 160 kPa

• Pump Efficiency = 60%

• Motor Efficiency = 88%

a) Estimate the shaft power (W) required by the pump

b) Estimate the fuel consumption rate of the boiler plant (m3 /hr) during a moment when both boilers are cycled on. Assume the heat content of natural gas is 10.33 kWh/m3 .

c) Consider a period when the heat extraction rates from the loop are as follows: Zone 1 = 30 kW, Zone 2 = 12 kW, Zone 3 = 22 kW. Estimate the heat load to be met by each boiler (kW) during this period.

Boiler Plant Output Zone 1 Boiler 2 Heat Distribution Loop Zone 2 Output Boiler 1 pump Zone 3 Natural Gas Electricity motor

## Answers

#### Similar Solved Questions

1 answer
##### (1 point) This is the third part of a three-part problem. Consider the system of differential...
(1 point) This is the third part of a three-part problem. Consider the system of differential equations with solutions for any constants ci and c2. Rewrite the solution of the equations in vector form as +C2...
1 answer
1 answer
##### Two products, The Pet Store Parade and The e away have impressive sales. However sales or...
Two products, The Pet Store Parade and The e away have impressive sales. However sales or r e t Din MSI is consc enng el ina ng product tr ts TodcleTown Tours collection. This collecton s ared t ?ld en one tothree years o age and ncludes "Yours of a the collection, The Post Office Poka have lagg...
1 answer
##### The null hypothesis is Ho ?? ?2 and the alternative hypothess is a ?? ? The...
The null hypothesis is Ho ?? ?2 and the alternative hypothess is a ?? ? The data in the accompanying table are rom a simple random paired sample rom the two populations under consideration. Use the paired t-test to perform the required hypothesis test at the 10% significance level EEE Click the icon...
1 answer
##### International Business short essay Question 12: Describe the Foreign Corrupt Practices Act and explain how it...
International Business short essay Question 12: Describe the Foreign Corrupt Practices Act and explain how it relates to corporate social responsibility....
1 answer
##### Proving that the language of the grammar is the given one. Prove by induction on n...
proving that the language of the grammar is the given one. Prove by induction on n that sum of 2^k for k = 0 to n        =           2^(n+1) -1   for n>=0 Basis P(0) when n = 0:      **&n...
1 answer
...
1 answer
##### Are there outliers? If so what are they? The following random sample of 28 female basketball...
Are there outliers? If so what are they? The following random sample of 28 female basketball player heights, in inches, is: 63 71 69 65 73 84 70 69 67 74 75 68 65 63 67 69 68 72 73 75 72 75 73 68 69 74 65 65 (Ex= 1961 Ex2 = 137,911)...
1 answer
##### 11) Which reagent can be used to accomplish the transformation shown below? CH3CH2CH2COCH2CH2CH3 CH3CH2CHBCOCH2CH2CH3 (A) Br/OH...
11) Which reagent can be used to accomplish the transformation shown below? CH3CH2CH2COCH2CH2CH3 CH3CH2CHBCOCH2CH2CH3 (A) Br/OH (B) Br2/CHCO2H (c) NaOE/EVOH (D) LDA/THF...
1 answer
##### Credit Debit $10,000 26,000 7,893 187,000$ 38,522 40,000 Account Title Cash Accounts receivable Office...
Credit Debit $10,000 26,000 7,893 187,000$ 38,522 40,000 Account Title Cash Accounts receivable Office supplies Trucks Accumulated depreciation-Trucks Land Accounts payable Interest payable Long-term notes payable Common stock Retained earnings Dividends Trucking fees earned Depreciation expense-T...
1 answer
##### The following information has been taken from the perpetual inventory system of Jaxson Manufacturing Co. for...
The following information has been taken from the perpetual inventory system of Jaxson Manufacturing Co. for the month ended September 30: Hint: The missing Ending Materials Inventory amount on Sept 30 should be a simple calculation based on the information given. You will be asked to solve for vari...
1 answer
##### Le tine direct materials used during the year.) E2-26A Compute Cost of Goods Manufactured and Cost...
le tine direct materials used during the year.) E2-26A Compute Cost of Goods Manufactured and Cost of Goods Soled (Learning Objective 5) Compute the Cost of Goods Manufactured and Cost of Goods Sold for West Nautical Company for the most recent year using the amounts described next. Assume that the ...
1 answer
##### If you are trading using someone else’s money or you are managing someone else’s money, your...
If you are trading using someone else’s money or you are managing someone else’s money, your objective should be to _____________ A) maximize your profits B) act for the benefit of your client and place your clients’ interests before your own C) act for the benefit of your client a...
1 answer
##### Medical Chart Name Nick Morris 12 Gender M Date Chief complaint Patient is carried into the...
Medical Chart Name Nick Morris 12 Gender M Date Chief complaint Patient is carried into the ER by several friends. They say he passed out during a party and they don't know what's wrong with him. They are not sure how long he has been unconscious. They were asked if he had been drinking, and...
1 answer
##### BUSI 1039 BUSTIESS ST Testing for the quality of k Population Means: MSTER Fell 서 1)...
BUSI 1039 BUSTIESS ST Testing for the quality of k Population Means: MSTER Fell 서 1) ск nrl Wax Type 1 Observation Wax Type 2 Wax Type 3 1 2 27 30 33 28 31 29 28 3 29 30 4 28 31 30 30 32 31 5 29.0 30.4 30.0 Sample Mean Sample Variance 2.5 3.3 2.5 NOTES...
1 answer
##### For each of the following scenarios, (1) identify whether it’s observational study or experiment, and (2)...
For each of the following scenarios, (1) identify whether it’s observational study or experiment, and (2) identify explanatory variable and response variable. For each of the following scenarios, (1) identify whether it's observational study or experiment, and (2) identify explanatory var...
1 answer
##### (A) If d=gcd(a,b) and m=lcm(a,b), prove that dm=|ab|. (B) Show that lcm(a,b)=ab if and only if...
(A) If d=gcd(a,b) and m=lcm(a,b), prove that dm=|ab|. (B) Show that lcm(a,b)=ab if and only if gcd(a,b)=1 (C) Prove that gcd(a,c)=gcd(b,c)=1 if and only if gcd(ab,c)=1 for integers a, b, and c. (Abstract Algebra)...
1 answer
##### Here are the transitions of a deterministic pushdown automaton. The start state is 90, and f...
Here are the transitions of a deterministic pushdown automaton. The start state is 90, and f is the accepting state. b E State-Symbol 90-Zo (91AAZO) (92,BZO) (8,8) 91-A (91,AAA) (91) 91-20 (90-20) 42-B (93.5) (92,BB) 92-20 (90,20) 93-B (926) 93-20 (91,AZO) Identify below the one input string that th...
1 answer
##### Compile the following C code into PICmicro Assembly Language Unsigned char a, b, c a 16...
Compile the following C code into PICmicro Assembly Language Unsigned char a, b, c a 16 b 64 c= a + b...
1 answer
##### Last year's financial statements for Heller Carbonic are below. Sales are expected to grow by 20...
Last year's financial statements for Heller Carbonic are below. Sales are expected to grow by 20 percent this year. Their tax rate is 35 percent and their retention ratio is expected to remain at 60 percent. Costs, selling and administration expense, current assets, accounts payable, and accrued...