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1. Consider a Pedrollo F40/200A centrifugal pump, with characteristic curves attached for a rotation of 2900 rpm. This pump normally operates at 2900 rpm with a flow rate of 700 l/min in an installation schematized in the figure below. With this normal flow rate the pump needs to operate 14 hours a day to ensure the transfer of the desired volume. The aim is to compare this situation with others in which the pump is working at maximum performance conditions. a) Draw the characteristic curve of the installation for the initial situation, calculate the power consumed initially, with 700 l/min at 2900 rpm, and compare it with the power value shown in the manufacturer's diagram; b) Calculate the power consumed if the flow is reduced by closing a valve until it operates at maximum efficiency conditions; c) Calculate the power consumed if the flow rate is reduced by reducing the pump speed until it operates at maximum efficiency: d) Determine the rotation speed corresponding to the previous paragraph: e) Determine the value of energy (in kW.h) consumed in a year for the three situations analyzed (items a, b, c) assuming the same daily flow volume; f) In three lines (maximum), explain what strategy would be adopted, assuming that the pump is equipped with a speed variator; g) Analyze the type of pump and estimate the rotor diameter. F40/200 PEDROLLO F40/200A Z-25m Page 1 of 2 CHARACTERISTIC CURVES AND PERFORMANCE DATA 30 Hz n=2900 1/min HS=0m Absorbed power P2 (kW) NPSH (metres) Head H (metres) MODEL Three-phase 0/2004

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You're looking at a bond called the "Summit Heights Callable Bond" issued by Summit Heights Corporation. The bond has a face value of $1,000 and pays a fixed annual coupon of $75 The bond will mature in 10 years, but it can be called in 5 years, for $1,075. The bond is currently selling for $1,050 in the market, is the bond is considered a: Premium Bond Income Bond Par Bond Discount Bond

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An object is traveling such that it has a momentum of magnitude 22.3 kg · m/s and a kinetic energy of 249 J. Determine the following. (a) speed of the object in meters per second (b) mass of the object in kilograms

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All of the following are keys of coaching for a lifetime of wellness EXCEPT nurture visionary and intrinsic motivation build self-efficacy focus on the maintenance stage of the transtheoretical model get 300 minutes of physical activity per week

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How many grams of medication will 500 mL of a 10% solution contain?

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18. Let $I := [a, b]$ and let $f: I \to \mathbb{R}$ be a (not necessarily continuous) function with the property that for every $x \in I$, the function $f$ is bounded on a neighborhood $V_{\delta_x}(x)$ of $x$ (in the sense of Definition 4.2.1). Prove that $f$ is bounded on $I$.

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Conservatives in the 1970's felt that ______ threatened traditional family values and social morality. all available answers Roe v Wade increasing divorces the ERA

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Texts: 4.1 Determine the locus of f(x) = (2x)^(x). or What is/are the absolute values?

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A baby girl is born to a male with blood type A and a female with blood type O. The girl has an older sibling with blood type O. Determine the probability that the baby has blood type A.: * (A) 0 (B) 1/4 (C) 1/2 (D) 2/3

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Problem 2: (a) Use mathematical induction to prove that $2 \cdot 4^n \ge n2^n + 3^{n+1}$ for all integers $n \ge 3$. (b) Let $f(n) = n2^n + 3^{n+1}$ and $g(n) = 4^n$. Using the inequality from part (a) prove that $f(n) = O(g(n))$. You need to give a rigorous proof derived directly from the definition of the O-notation, without using any theorems from class. (First, give a complete statement of the definition. Next, show how $f(n) = O(g(n))$ follows from this definition.)

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