Conversion of pressure reading into kpa, Mechanical Engineering

Assignment Help:

Convert following reading of pressure to kPa, supposing that the barometer reads 760mm Hg.

(1) 90cm Hg gauge
(2) 40cm Hg vacuum
(3) 1.2m H
2O gauge

Sol: Given that h = 760mm of Hg for Patm

Patm =   gh = 13.6 × 103  × 9.81 × 760/1000 = 101396.16

N/m2 = 101396.16Pa = 101.39KPa                                                                          ...(i)

(a)  90cm Hg gauge

Pgauge = gh = 13.6 × 103  × 9.81 × 90/100 = 120.07KPa                                             ...(ii)

Pabs  = Patm  + Pgauge = 101.39 + 120.07

Pabs  = 221.46KPa                        .......ANS

(b)  40cm Hg vacuum

Pvacc =  gh = 13.6 × 103  × 9.81 × 40/100 = 53.366KPa                                           ...(iii)

Pabs  = Patm  - Pvacc

= 101.39 - 53.366

Pabs  = 48.02KPa                           .......ANS

(c)1.2m Water gauge

Pgauge  =   gh = 1000 × 9.81 × 1.2 = 11.772KPa                                                              ...(iv)

Pabs  = Patm  + Pgauge

= 101.39 + 11.772

Pabs  = 113.162KPa          .......ANS


Related Discussions:- Conversion of pressure reading into kpa

Determine the deflection at free end, Determine the deflection at free end:...

Determine the deflection at free end: For the beam illustrated in Figure, determine the deflection at free end and the maximum deflection. Figure Solution R

High carbon tool steels, High Carbon Tool Steels Tools are implements...

High Carbon Tool Steels Tools are implements such are employed to shape, cut or deform other materials. They are largely made in steel, although other alloys have also been i

Necessity of tyres , Necessity of Tyres To supports the motorcycle...

Necessity of Tyres To supports the motorcycle load. To provide cushion against shocks. To allow smooth handling of motorcycle. To transmit driving and braking

Order holons , This type of holon is mainly concerned along wit...

This type of holon is mainly concerned along with carrying out the work in a fine and correct way at correct time.

Hydropower scheme, 4. Design a run-of-the river hydropower scheme for a riv...

4. Design a run-of-the river hydropower scheme for a river in the Scottish Borders with potential level different of 15 m carrying water from a catchment area of 14 km by 25 km. I

Steam engine main parts, STEAM ENGINE MAIN PARTS:    Connecting Rod: ...

STEAM ENGINE MAIN PARTS:    Connecting Rod: It connects cross head with crank on other side.    Crank Shaft: It is output shaft on which the mechanical power which is a

welding, types of welding, pressure and non pressure weldin

types of welding, pressure and non pressure welding

Design a soda vending machine, Design a soda vending machine that can deliv...

Design a soda vending machine that can deliver three kinds of soda, A, B and C. All the three soda cost the same amount - 70 cents. The vending machine has four coin slots, one eac

Smallest value of constant horizontal force, Smallest value of constant hor...

Smallest value of constant horizontal force: A particle containing a mass of 8 kg starts from rest and attains a speed of 1.5 m/sec in a horizontal distance of 10 m. imagine a

Lifting machines, Lifting machines: Basic definitions of the lifting m...

Lifting machines: Basic definitions of the lifting machines and some lifting machines have been described. For each of these machines, derivation of the formulae for mechanica

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd