Page 1

BUILDING MATHS AND SCIENCE SKILLS

LOOSENING BOLTS: NO VIOLENCE REQUIRED


Win an all-expenses paid trip for two to the Eiffel Tower in Paris worth R125 000!

Stainless Steel Eiffel Tower Project - LCC App Entry Data Life Cycle Costing Input

Mild Steel

Utility Ferritic Stainless Steel (e.g. 3CR12)

Lean Duplex Stainless Steel (e.g. LDX 2101)

Rates & Duration

Cost of Capital pa

2%

2%

2%

Inflation Rate pa

1%

1%

1%

Desired Duration (years)

100

100

100

Downtime per Maintenance Event (days)

0

0

0

Value of lost production (amount per day)

0

0

0

7 300 t @ $600/t

7 300 t @ $1 475/t

5 475 t @ $2 575/t

$4 380 000

$10 767 500

$14 098 125

1.25 x Material Cost

1.25 x Material Cost

1.25 x Material Cost

$5 475 000

$13 459 375

$17 622 656

Painting

Cleaning (0.3 x painting costs)

Cleaning (0.3 x painting costs)

$4 073 376

$1 222 013

$1 222 013

Painting

None

Cleaning (0.3 x painting costs)

$4 073 376

$0

$1 222 013

7

N/A

20

Scrapped After 100 years

Scrapped After 100 years

Scrapped After 100 years

Material Cost Initial Costs

Fabrication Cost

Other Installation Costs Maintenance Costs Cost Per Event Time Between Maintenance Events (years) Operating Costs

Replacement Costs Elapsed Time Between Replacement (years) Removal Cost Per Event

100

100

100

$1 000 000

$1 000 000

$1 000 000

Material + Installation Cost Per Event Residual Mass of Material Per Event

$0

$0

$0

7 300 t @ $200/t

7 300 t @ $300/t

5 475 t @ $700/t

$1 460 000

$2 190 000

$3 832 500

$0

$0

$0

Annual Material Related Cost

Would a stainless steel Eiffel Tower be cheaper than a mild steel one? To enter the competition all you have to do is download the Sassda Life Cycle Costing (LCC) App. Then use the LCC App and the information in the table above to calculate the total cost of building

Download The Apple IOS App

and maintaining the Eiffel Tower. Compare the cost of a mild steel Eiffel Tower to either a 3CR12 or LDX 2101 stainless steel Eiffel Tower. Use the LCC App to email your results to eiffel@sassda.co.za

Stainless Steel. It’s Simply Brilliant. Call 011 883 0119 or see sassda.co.za. Your complete stainless information source.

Download The Android App

Eiffel Tower Competition Information


I’ve dealt with skillful, talented engineers, who have been blinkered by their industry and have lost sight of the whole, beautiful, vast field of knowledge, known as mechanical engineering

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

3


S MECHANICAL A ENGINEER

Produced by: PROMECH PUBLISHING, P O Box 373, Pinegowrie, Official Publication of THE SA INSTITUTION OF MECHANICAL ENGINEERING 2123, Republic of South Africa and endorsed by: Tel: (011) 781-1401, Fax: (011) 781-1403 Email: samecheng@promech.co.za, www.promech.co.za Managing Editor Susan Custers Editorial Contributors Liesl Venter/Patricia Holburn Advertising Sales: Louise Cresswell Cell: 071 886 1263 DTP Anne Rotteglia Circulation Belinda Siegruhn

Subscriptions Please email us at accounts@promech.co.za if you wish to subscribe to “SA Mechanical Engineer” at R550,00 (excl postage and VAT) per year; R1 380,00 per year for Africa/Overseas. Disclaimer

PROMECH Publishing and The South African Institution of Mechanical Engineering as well as any other body do not take responsibility for the opinions expressed by individuals.

Printed by: Typo Colour Printing, Tel: (011) 402-3468/9 FSC (Forestry Stewardship Accreditation)

            

CONSULTING ENGINEERS OF SA CORROSION INSTITUTE OF SA INSTITUTE FOR CERTIFICATED MECHANICAL AND ELECTRICAL ENGINEERS NATIONAL SOCIETY OF BLACK ENGINEERS NUCLEAR INSTITUTE SA ASSOCIATION FOR ENERGY EFFICIENCY SA CAPITAL EQUIPMENT EXPORT COUNCIL SA INSTITUTE FOR NON-DESTRUCTIVE TESTING SA INSTITUTE OF TRIBOLOGY SA PLASTIC PIPE MANUFACTURERS ASSOCIATION SA PUMP MANUFACTURERS ASSOCIATION SA VALVE AND ACTUATORS MANUFACTURERS ASSOCIATION VALVE & ACTUATOR MANUFACTURERS CLUSTER OF SA

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

5


Council 2016 - 2018 Office Bearers President............................................ Prof JL van Niekerk (Wikus) Vice President........................................................ A Roos (Andre) National Treasurer...................................................G van den Berg

Branch Chairpersons Central ................................................................. C Kruger (Carel) Eastern Cape........................................... G van den Berg (Gideon) KwaZulu Natal .. Dr J Padayachee (Jared)Mpumalanga Highveld . N Lecordier (Noel) Vaal......................................................... Prof LM Masu (Leonard) Western Cape ..................................................S Pietrangeli (Sven)

Portfolios: Education (Universities of Technology).............E Zawilska (Ewa) Communications and Marketing..................G Bartholomew (Bart) Technology Programme..................................... SZ Hrabar (Steve)

Chief Executive Officer: Vaughan Rimbault National Offic e Manager: Anisa Nanabhay PO Box 511, Bruma, 2026 Tel: (011) 615-5660 Email: info@saimeche.org.za Website: www.saimeche.org.za Membership Email: membership@saimeche.org.za

Company Affiliates Autodesk as represented by Worldsview Technologies

Osborn Engineered Products SA (Pty) Ltd

Ainsworth Engineering (Pty) Ltd

PaCMan Projects & Maintenance

Alstom Power Service SA (Pty) Ltd

Plant Design & Project Services (Pty) Limited (PDPS)

Babcock Ntuthuko Engineering (Pty) Ltd

PPS Insurance Co Limited

Bosch Projects (Pty) Ltd

Rotek Engineering

DCD Group (Pty) Ltd

S.A.M.E Water (Pty) Ltd

Exxaro Resources (Pty) Ltd

SA Power Services (Pty) Ltd

Festo (Pty) Ltd

Sasol Technology (Pty) Ltd

Fluor SA (Pty) Ltd

SEW Eurodrive

Green Plan Consultants (Pty) Ltd

Siemens Ltd

Hatch Africa (Pty) Ltd Howden Power (a div of Howden Africa) Howden Projects (a div of James Howden) Kelvion Thermal Solutions (Pty) Ltd MBE Minerals (SA) (Pty) Ltd Megchem

Simera Technology (Pty) Ltd Spirax Sarco (Pty) Ltd Tenova Mining and Minerals SA ThyssenKrupp Industrial Solutions SA (Pty) Ltd Ultra-Flow Engineering Services CC Vital Engineering (Pty) Ltd Weir Minerals Africa

Mod-U-Flow CC

6

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

7


This 200 kW load test rig has been developed in response to demand from local industry for absolute reliability from new gearboxes

8

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

9


Jessi Sunkel

10

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

Diana van der Westhuizen

September 2017


Anel Booysen

Madaleen van den Berg

Carina Nel

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

11


12

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

13


GA 250 Plus

Another major focus area is the food and beverage industry, a sector which Pieter points out has been less affected by the economic downturn

ZS 250 plus VSD

14

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


Atlas Copco Compressor Technique backs quality products with exceptional service

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

15


havas 15030/E

1

DOWN 2

1. The formula p=m•v is used to calculate. 2. The SI Unit for Pascals (the derived unit to quantify internal pressure).

3

3. The letter S in S=d/t is used to notate which scalar quantity?

4

4. Formula for the volume of a cube.

5

ACROSS 5. The equation stated by Émile Clapeyron in 1834 as a combination of the empirical Boyle’s law, Charles’ law and Avogadro’s Law commonly known as the ideal gas law.

You’re an engineering professional. You’ve spent years studying your chosen field. So you don’t need us to help you with the answers to this crossword. Completing it, however, will be revealing. Your rarity should be rewarding - and with PPS, it is. Bespoke financial solutions and rewards tailored for graduate professionals only. To find out more, contact your PPS-accredited financial adviser or visit pps.co.za

#R AREISREWARDING

Life Insurance

Investments

Financial Planning

Short-Term Insurance

Medical Aid

PPS offers unique financial solutions to select graduate professionals. PPS is an authorised Financial Services Provider.


Michael van Niekerk

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

17


RISK ANALYSIS

Tough demands have met their match.

With a Hägglunds hydraulic drive system you get compact, durable power - without foundations or gearbox. A full range of rugged motors and complete solutions for monitoring and control give you total assurance, even in the most demanding applications. Let us know your demands.

Hägglunds Drives South Africa (Pty) Ltd, Johannesburg, Tel. + 27 (0)11 454 4933 E-mail: info@za.hagglunds.com www.hagglunds.com

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

19


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

21


22

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


ORE SORTING

High purity quartz has a monocrystalline structure. As this structure is translucent, a laser beam diffuses inside the rock where it characteristically illuminates the core. Microcrystalline or opaque rocks will only reflect the light beam

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

23


24

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

25


26

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

27


HEAD OFFICE merSETA House, 95 7th Avenue, Cnr Rustenburg Road Melville Johannesburg, 2092

The merSETA 2017 Gauteng Region

Annual General Meeting 6 October 2017

Tel: 010 219 3000 Fax: 086 673 0017

Premier Hotel O.R. Tambo

EASTERN CAPE 14-20 Pickering Street Newton Park, Port Elizabeth, 6045 Tel: 0861 637 734 Fax: 041 363 0144

The merSETA is the Manufacturing, Engineering and Related Services Sector Education and Training Authority, established through the Skills Development Act of 1998 (as amended). The merSETA facilitates skills development in the following sub-sectors: Metal and Engineering, Auto Manufacturing, Motor Retail and Components Manufacturing, New Tyre Manufacturing and Plastics Manufacturing.

VISION

Leaders in closing the skills gap

MISSION

To increase access to high quality and relevant skills development and training opportunities to support economic growth in order to reduce inequalities and unemployment and to promote employability and participation in the economy.

VALUES WE CARE

It’s about caring for people we render services to

WE BELONG

WE SERVE

It’s about working together with colleagues

It’s about going beyond the call of duty

GAUTENG SOUTH merSETA House, 95 7th Avenue, Cnr Rustenburg Road Melville Johannesburg, 2092 Tel: 010 219 3000 Fax: 086 673 0017 GAUTENG NORTH & NORTH WEST Automotive Supplier Park, 30 Helium Road Rosslyn Ext. 2 Pretoria, 0200 Tel: 0861 637 731 Fax: 0866 700299 FREE STATE & NORTHERN CAPE 46 Second Avenue Westdene Bloemfontein, 9300 9b Roper Street Kimberley, 8301 Tel: 0861 637 733 Fax: 051 447 8873

TRAINING TODAY’S WORKERS FOR TOMORROW

KWAZULU-N ATAL 149 Essenwood, 149 Stephen Dlamini Road Musgrave Durban, 4001 Tel: 086 163 7736 Fax: 031 201 8732 LIMPOPO & MPUMALANGA 1st Floor, No.8 Corridor Crescent Route N4 Business Park Ben Fleur Ext 11, Witbank, 1040 Tel: 0861 637 735 Fax: 013 656 4629 WESTERN CAPE Bella Rosa Road, Bellville, 7530 Tel: 0861 637 732 Fax: 021 914 8131

w www.merseta.org.za

merSETA Social

@mersetasocial

LEADERS IN CLOSING THE SKILLS GAP

CALL CENTRE Tel: 086 163 7732 info@merseta.org.za www.merseta.org.za


International Lubricants Laboratory Lab book page:

2202Z120 Competitor A

Competitor B

Competitor C

Competitor D

Panel 1

2

15

12

2

Panel 2

2

15

12

9

Panel 1

<16

88

72

<16

Panel 2

<16

88

72

<16

3

6

2

3

Pass

Pass

Fail

A8TM D1748 Humidity Cabinet (Days until Fail)

A8TM B117 Salt Spray (Hours until Fail)

Acid Fume 4N HCI (Hours until Fail) Panel 1 MIL-C-22236A Stack Stain Test 24hrs @ 82ยบC (Pass or Fail) Neat

Gauteng 5% water contamination30 September 2016 MIL-C-18173E Water Displacement (Pass of Fail) 50:50 Paraffinic Oil Dilution

Fail

Free State Fail& Northern Cape Fail

Mpumalanga & 14 October 2016 5% water contamination Limpopo

Western Cape

Time to separation KwaZulu-Natal

Eastern n/a Cape

Fail

04 November 2016 Pass Pass

Fail

Pass

Pass

Fail

Pass

Pass

Fail

11 November 2016

LZ Water Separation, 25mL water, 75mL sample, 8 Inversions Water Layer @ 10 min

21 October 2016

21mL, clear

01:45 2016 01:50 18 November

n/a

25, clear

25, clear

21, clear w/film

Cuff @ 10 min

7mL

minimal

minimal

11

Organic Layer @ 10 min

72mL

75, hazy at bottom

75, hazy at bottom

68, Hazy

Due to solvent, A and D had water layer on top, organic on bottom A8TM D97 Pour Point (ยบC)

-3

<-57

<-57

-3

A8TM D446 Kinematic Viscosity @ 40ยบC (Centistokes)

1 124

1 213

1 333

2 192

A8TM D2783 Weld Point (kg)

160

160

160

126

34,54

19,75

24,85

31,61

Percentage Volatiles (% Sample remaining after 24 hours in fume hood, initial 2 grams)

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

29


REA003_2_Half Page advert September 2017 PRINT.pdf

1

2017/08/27

3:14 PM

THE BIGGEST INNOVATION IN TURNING...SINCE TURNING

CoroTurn® Prime and PrimeTurning™

LEVEL 1 BBBEE PROUD CONTRIBUTOR

30

THE SOUTH AFRICAN MECHANICAL ENGINEER CoroTurn® Prime inserts have three edges per corner.

tel: +27 (0)11 970 1726/32 • email: sales@reasoma.com • www.reasoma.com

VOL 67

September 2017


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

31


In a first for Veolia South Africa, the water treatment specialists designed and built four generator-powered potable water treatment plants, mounted on the back of 4X4 trucks. Used for communities in Lesotho, each mobile water treatment plant has the capacity to treat 200 mÂł of river water to potable standards.

32

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

33


34

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


Aury Australia Chairman Xiaoming Yuan

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

35


36

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017

37


On the Move Shulami Qalinge

Sias Suurd

Ben Stapleton

Mieszko Iwaskow

Adam Boughton

38

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

September 2017


4

2017/09 - SA Mechanical Engineer