2. Write short notes on Thermodynamics, Heat transfer and Fluid mechanics.
QUESTION 1 (10 marks) a) Write the Newton's law of heat convection in fluid using convection heat transfer coefficient, h (Wm2.K). Please explain the equation in terms of its driving force and resistancC (2 marks) (POUCOI/C2) b) Define the heat transfer rate, q,by inside and outside convection and wall conduction considering a stainless steel cylindrical pipe (inside radius, ri and outer radius, ) with fiberglass insulator (radius, s) in ą steady state condition as shown in Figure Q11 Steam with...
(2 pts) Heat is transferred from a hot fluid (temperature T1 and heat transfer coefficient h2) through a plane wall of thickness 8, surface area A and the thermal conductivity k. The thermal resistance for the set up is + (a) AC ) (b) A (i + + ) (c) 2 (na + + n2) (d) A (na + b +h2) (2 pts) An increase in convective heat transfer coefficient over a fin will (a) increase effectiveness (b) decrease effectiveness...
1.Why should we study fluid mechanics? 2.What's a Fluid mechanics? 3.What's a Fluid? 4,What's difference between a solid and a fluid ? 5.What is the difference between a unit and a dimension? 6.Which terms in equation are dimensionally homogeneous? 2ma 7.What is Density? 8.What is Specific Weight? 9.What is Specific Gravity? 10.What is Specific Volume? 11. What is the ideal gas equation of state?
Can a fluidized bed heat exchanger produce superheated steam using water and heat transfer fluid as inlets?
The equation for the local heat transfer coefficient h, for a fluid flow of velocity Vin the x direction over a specific constant temperature surface is Nuz = CRe: Prn where C and n are constants. Assume the fluid properties k, p, Pr, V, and Cp are constant and known. The heat transfer coefficient over the entire surface is governed by this equation. At a position x1 = 20 cm from the leading edge of the plate, the local heat...
(a) (iWhen is heat transfer through a fluid by conduction or by convection? For what case is the rate of heat transfer higher? How does the convection heat transfer coefficient differ from the thermal conductivity of a fluid? (ii) Explain the physical significance of Nusselt number (ii) By definition, discuss hydraulic diameter. Obtain an expression for hydraulic diameter of a circular tube of diameter, D (b) The local atmospheric pressure in Gboko, Benue State Nigeria (elevation 1610 m), is 834...
Problem in Fluid Mechanics. PLEASE ANSWER CORRECTLY.
THANKS A LOT.
2. Show that c = vkRT for isentropic process. Where c is the speed of sound, k is the specific heat ratio, R is the gas constant and T is the absolute temperature nicton The niston
2019-1 PHYS 100 - General Physics I: Mechanics and Thermodynamics 2 EREN . Homework 6 Problem 7.63 < 5 of 6 > Constants Periodic Table Part A How much work is done by the horizontal force Fp 150 N on the 18 kg block of the figure(Figure 1) when the force pushes the block 7.5 m up along the 32 frictionless incline? Figure < 1 of 1 Express your answer using two significant figures. AXO O O ? SUS =...
7. Consider a Carnot-cycle heat engine with water as the working fluid. The heat transfer to the water occurs at 150°C, during which process the water changes from saturated liquid to saturated vapor. The heat is rejected from the water at 25°C. (a) Show the Carnot-cycle on a T-s diagram (b) Find the properties (P, T, v, h, s) water at each state. Here v is the specific volume. (c) Determine the cycle thermal efficiency, net heat added and work...
Fluid Mechanics. Please answer as many as you can.
Short answer questions 1) Explain the physical meaning of the acceleration term uVu, where u is the velocity vector in a fluid. 2) Name the two equations that are required to describe the flow of an inertial jet in an incompressible, unstratified fluid. 3) What is the “Continuum Hypothesis”? 4) Describe how a viscous boundary layer adjacent to a solid surface results in transfer of momentum to/from that surface. 5) What...