Sa mech june 15 web

S MECHANICAL A ENGINEER June 2015

Submersible 2X Suction 0 Thrust Deep well pump

Publication of the South African Institution of Mechanical Engineering, incorporating News of Associate Organisations

Submersible Single Suction Modular Borehole pump

Submersible Induction Motor

Submersible Permanent Magnet Motor

TRENDING TECHNOLOGY ENERGY EFFICIENT REFRIGERATORS

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Chris Reay

Chairman of the Working Committee: Communications (SA Institution of Mechanical Engineering)

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Stephen Murefu

The monthly circulation is 3 947

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Proudly SAIMechE – Proudly South African SAIMechE is proud of the extensive attention to detail featured in many of its training activities, most particularly the following technical workshops which it encourages corporations to book as In-House events: 07

Pressure Equipment Regulations

44

Shutdown and Turnaround Management and Planning

48 – 50 Mechanical Seals (I, 2 & 3) 65

Fans and Air Handling

53

Understanding the Refrigeration Installation Design Process

54

Understanding the Air Conditioning Installation Design Process

72

Mechatronic Motion and Control

85

Fault Current Calculations and Application for Mechanical Engineers

86

Machinery Failure Analysis and Prevention

88

Fundamentals of Industrial Sound Propagation and Industrial Noise

90

Pump Design, Operation, Maintenance and Trouble Shooting

92

Pressure Safety Valves

In-house bookings and enquiries for our many available workshops: Linda Robinson, Tel. 031 764 7136 or Email: linda@saimeche.org.za

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Forthcoming Workshops : July – August 2015 Programmes and Registration Forms obtainable from Carey Evans, Tel. 031 764 7136 or Email: carey@saimeche.org.za Event Code

Event Title

Start Date End Date

Region

Booking Closure Date

E2915

Lubrication & Lubricants

01-Jul-15

East Rand

19-Jun-15

E6915

Lubricants & Oil Monitoring

02-Jul-15

02-Jul-15

East Rand

22-Jun-15

B0815

How Technology Evolution Enables Inventive 07-Jul-15 Engineering Designs

08-Jul-15

Port Elizabeth

26-Jun-15

01-Jul-15

E9215

Pressure Safety Valves

07-Jul-15

09-Jul-15

Vaal

26-Jun-15

H2815

Running Effective Meetings

14-Jul-15

14-Jul-15

Rivonia

02-Jul-15

C7715

Value Engineering in Projects

14-Jul-15

16-Jul-15

Cape Town

03-Jul-15

E4415

Shutdown & Turnaround Management & Planning 14-Jul-15

16-Jul-15

East Rand

03-Jul-15

A0815

How Technology Evolution Enables Inventive 21-Jul-15 Engineering Designs

22-Jul-15

Durban

10-Jul-15

F9015

Pump Design, Operation, Maintenance and 21-Jul-15 Troubleshooting

23-Jul-15

Mpumalanga

10-Jul-15

E9015

Pump Design, Operation, Maintenance and 28-Jul-15 Troubleshooting

30-Jul-15

East Rand

17-Jul-15

B2915

Lubrication & Lubricants

29-Jul-15

29-Jul-15

Port Elizabeth

17-Jul-15

B6915

Lubricants & Oil Monitoring

30-Jul-15

B4415

Shutdown & Turnaround Management & Planning 04-Aug-15

30-Jul-15

Port Elizabeth

20-Jul-15

06-Aug-15

Port Elizabeth

24-Jul-15

D4615

Value Engineering; Value Management

05-Aug-15

05-Aug-15

Vaal

24-Jul-15

A7415

Forestalling Problems Through Root Cause and 11-Aug-15 Failure Mode

12-Aug-15

Durban

31-Jul-15

C4415

Shutdown & Turnaround Management & Planning 11-Aug-15

13-Aug-15

Cape Town

31-Jul-15

D9315

Coaching Skills for Managers in Engineering

12-Aug-15

12-Aug-15

Vaal

31-Jul-15

B9015

Pump Design, Operation, Maintenance and 18-Aug-15 Troubleshooting

20-Aug-15

Port Elizabeth

07-Aug-15

H9315

Coaching Skills for Managers in Engineering

19-Aug-15

19-Aug-15

Rivonia

07-Aug-15

D6515

Fans and Air Handling

19-Aug-15

20-Aug-15

Vaal

07-Aug-15

E7415

Forestalling Problems Through Root Cause and 25-Aug-15 Failure Mode

26-Aug-15

East Rand

14-Aug-15

C9015

Pump Design, Operation, Maintenance and 25-Aug-15 Troubleshooting

27-Aug-15

Cape Town

14-Aug-15

124th SAIMechE National Annual General Meeting To be held on Wednesday, 5 August 2015.

Venue: Johannesburg (details to be advised).

After the Annual General Meeting all guests are invited to join the President, Office Bearers and Council for a light supper and drinks whilst networking with like‐minded individuals.

The AGM notice including full details will be sent to members shortly or visit the SAIMechE website at www.saimeche.org.za.

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MS-T modular cooling technology

MS-T modular shaft technology

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Will revolutionise pump technology, especially where costs are concerned

IPM interior permanent magnet motor

HDM heavy duty mining

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► EIA Process

► Environmental Risk Assessments

► Geographical Information Systems

► Agricultural Assessment and Advise

► Project Managment

► Wetland and Riparian Services

► Natural Resource Services

► Visual Impact Assessments

► Ecological/Biodiversity Services

► Public Participation Process

► Application Assistance

► Game Ranch Management

► Developement Research, Monitoring and Evaluation

N2 Mnini ECO Duties

Plant rescue

Durban Coal Terminal Site Inspection

Ohlanga Pump station ECO Duties

Freightpak Warehouse Site Audit

Public participation Makhabeleni

Ballito Interchange Botanical survey

Site assessment Sundumbili pipeline

l Tel: (031) 303-2835 l Fax: 086 692 2547 l l Email: info@afzelia.co.za l www.afzelia.co.za l

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June 2015 Skills on Site

Septmeber 2012

1

Imraan Lambat, an applications engineer for Worldsview

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Dr. Michal Hubรกlek

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MAN ITEMS Y BE OFF CAN ER FROM ED STOCK

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June 2015

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Achievements

Academic

Projects

Stephen Murefu

Career Path

Commentary

INVEST ONCE WITH TWICE THE OPPORTUNIT Y

Visit ppsinvestments.co.za Email clientservices@ppsinvestments.co.za Call on 0860 INV PPS (0860 468 777).

Professional Provident Society Investments Proprietary Limited (“PPS Investments”) (39270), Professional Provident Society Multi-Managers Proprietary Limited (“PPS Multi-Managers”) (28733) and Professional Provident Society Insurance (“PPS Insurance”) (1044) are licensed Financial Services Providers.

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1.

2.

3.

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Figure2. Schematic view of boundary lubricating regime

E:\!BMG\#Jobs\Adverts\2015\062015\BMG-BMG-BEA04062015-ME.cdr 08 June 2015 02:35:09 PM Color profile: Disabled Composite Default screen

Bearing Brands That Deliver.

BMG does more than just supply a vast range of superior quality bearings and engineering components to all sectors of industry. We also provide the technical resources needed to keep your bearings and machinery operating at an optimal level.

Proud contributors to your success. Part of the process.

FSQ

BEE 3 22

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BMG-BEA04062015

BRANCHES NATIONWIDE. 24hr Distribution & Service

Figure3. Process of adhesive wear

Figure 4. Typical example of fretting corrosion The gearbox has been standing for a prolonged period of time at vibrating conditions (ie, next to a running machine)

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Figure 5. The typical effect of fretting corrosion

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Figure 6. The tension determines the torque not the other way around

Figure 7. Bolts act as heavy coil springs; they must be stretched to be effective

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POWER GENERATION

POWER

GENERATION

Greg Leventis

T O D A Y

Virginie Letschert

MARKET ASSESSMENT

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POWER GENERATION

Theo Covary

PROGRAM ANALYSIS

Paul Waide

ENERGY PERFORMANCE ANALYSIS

Nihar Shah

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POWER GENERATION

Refrigerator ( 1-6)

Domestic

Imported Overall

0%

9%

9%

Refrigerator/Freezer (EU category 7&10)

68%

23%

91%

Total Refrigerator/Freezers

68%

32%

100%

Table 1: Import VS. Local production for each product class

Scenario 1:

Scenario 2:

Option #

Change from previous option

Annual Energy Retail Price Manufacturing Consumption (kWh) (Rand) Cost (Rand)

EEI*

Base case Fresh-food cabinet insulation (22mm door, 25mm sides, 746.8 niche and top, 50mm mullion, 35mm back), freezer cabinet insulation of 30mm, compressor = Zanussi GL80AA90, R134a

3,448

1,586

128

1

As base case with fresh-food evaporator height = 0.33m, 547.1 condenser height increased to 1.5m, application of thermal paste to improve evaporator conductivity, and re-optimised thermostat/controls and capillary tube

3,631

1,678

94

2

As Option 1 with fresh-food evaporator height = 0.38m, 409.9 freezer evaporator width = 0.45m , use of higher-efficiency compressor (Danfoss NLX15, R600a), and re-optimised control

4,205

1,944

70

3

As Option 2 with 10mm extra insulation in fridge, freezer 203.7 back/niche, and fridge door, and 20mm extra in freezer; fridge evaporator to 0.48m; and re-optimised control

4,345

2,036

35

4

As Option 3 with extra 10mm insulation on freezer back and 131.8 niche, fridge evaporator to 0.41, freezer evaporator = 0.42m, and re-optimised control

4,375

2,051

23

7,474

3,504

19

Design option with less certain impact 5

Application of maximum vacuum-insulated panel coverage 111.1 and reduction of evaporator cooling capacities to attain design temperatures

* Energy Efficiency Index (EEI) are set out in the European Energy Labelling Directive but essentially an EEI value of 100 is the efficiency of the average product on the EU market in 1993 Table 2: Energy-Efficiency Design Options

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POWER GENERATION

Scenario 1 Results: UPSTREAM PROGRAM

Figure 1:.Refrigerator ownership by Living Standards Measure (LSM)

Scenario 2 Results: DOWNSTREAM PROGRAM

Figure 2: Upstream scenario 1 results

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POWER GENERATION

Administrator

Beneficiary

Form

Ghana

Government

Utility customers

Rebate/replacement

Mexico

Government-owned utility

Utility customers

Rebate/replacement Rebate/replacement

Brazil

Investor-owned utilities (IOU)

Low-income utility customers

United States4

Federal government and Utilities

Manufacturers and Consumers Tax credit and Rebate/replacement

China

Government

Manufacturers and retailers

Rebate

Table 3: International examples of refrigerator incentive programs. The term “administrator” refers to the body that carries out the incentive program. The table shows examples in which the administrator is the government (Ghana, US, China), a government-owned utility (Mexico), or investor-owned utilities (Brazil, US). The term “Beneficiary” denotes the recipient of the incentive.

4 Two types of refrigerator program exist in the US: a manufacturer tax incentive administrated by the federal government and rebate and replacement programs administrated by Utilities or State third party agency.

www.promech.co.za

Test

Benefits

TRC

Utility avoided supply costs • Program administrator costs • Incremental cost

Costs

PAC

Utility avoided supply costs • Program administrator costs • Incremental cost covered by incentive

Table 4: Cost-benefit tests

* Easy navigation through the site Assumptions * Comprehensive archive Discount rate 7.65% Avoided cost users - rand/kWh 0.7146 * generation Free to Administrative cost 18% of total incentive cost * No registration Baseline B (hypothetical new standard) Refrigerator lifetime 10 years * Searchability

Table 5: Incentive analysis assumptions

RITZ Pumps South Africa (Pty) Ltd Tel: (011) 397-5616 www.ritzpumps.co.za

www.promech.co.za * * * * *

S MECHANICAL A ENGINEER

Easy navigation through the site Comprehensive archive Free to users No registration Searchability

May 2015

Publication of the South African Institution of Mechanical Engineering, incorporating News of Associate Organisations

CFD IN BOILER DESIGN RITZ Pumps South Africa (Pty) Ltd Tel: (011) 397-5616 www.ritzpumps.co.za

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Our Technology, Your Success Pumps. Valves. Service.

COOLING DATA CENTRES

1 384 photovoltaic panels were installed across the north-facing roof spaces of the facility. The panels provide a low-maintenance solution rated to last 25 years

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Welcome to HBC‐radiomatic SA (PTY) Ltd From the competent consultation up to sales and services. We will find a radio Solution for you.

Unit 7 The Stewards Industrial Park C/o Main Reef & Beryl Street The Stewards Benoni Phone : +27 11 421‐0004/25 +27 10 020‐0607,0608,0609

QUADRIX

MICRON 5

Fax : +27 11 422‐2571 www.hbc‐radiomatic.co.za

HBC radiomatic SA

MICRON 7

HBC data logger

Useful information at your disposal • The HBC data logger stores different operational data of machine utilization, for example the usage time of drive functions.

• HBC user identification. Data is collected for individually users.

• Determins how long the crane was used and by which user.

• The collected data can be helpful in various situations, for example in service cases.

• The data is read out via Bluetooth® interface and visualized with HBC developed software.

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DATA LOGGER

ECO

SPECTRUM

SPECTRUM E

Safe working with camera assistance radiomatic® photon enables safe and precise working in demanding situations where visibility is restrictd.

SPECTRUM B

CARD REMOTE

The intelligent card for more safety and information

TECHNOS User identification is based on a handy login‐card (HBC Smart Card).

With its key function it protects the control from unauthorized use.

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FUNCTIONS

MEANS Base oils

Additives

• Reduce friction losses

⇒⇒ Lessen viscosity

⇒⇒ Oiliness and friction reducing agents

• Combat wear

⇒⇒ Increase viscosity at high temperature ⇒⇒ Anti wear and E.P. property

• Dissipate and control heat in critical areas ⇒⇒ Lessen viscosity

⇒⇒ Anti oxidant

• Protect equipment from rust and corrosion,

⇒⇒ Anti rust and anti corrosion

• Prevent formation of deposits that settle ⇒⇒ Filterability down and clog filters & pipes.

⇒⇒ Dispersants - Detergents Demulsifier

⇒⇒ Increase viscosity (grease)

• Act as a seal

⇒⇒ Slight swelling seals (compatibility) • Retain their properties for a long time • Perform under widely changing pressure ⇒⇒ Type of base oil and temperature conditions.

• Transmit power (hydraulic oils)

INVEST ONCE WITH TWICE THE OPPORTUNIT Y

⇒⇒ VI improvers ⇒⇒ Pour point depressant

⇒⇒ Incompressibility - aeration - resistance ⇒⇒ Antifoamants

Visit ppsinvestments.co.za Email clientservices@ppsinvestments.co.za Call on 0860 INV PPS (0860 468 777).

Professional Provident Society Investments Proprietary Limited (“PPS Investments”) (39270), Professional Provident Society Multi-Managers Proprietary Limited (“PPS Multi-Managers”) (28733) and Professional Provident Society Insurance (“PPS Insurance”) (1044) are licensed Financial Services Providers.

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MARKET FORUM

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MARKET FORUM

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MARKET FORUM

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MARKET FORUM

KSB Pumps and Valves factory in Germiston

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MARKET FORUM

From left to right: Oliver Ackermann, Sourcing Unit Director Indonsa; Bruno Witvoet, President: Africa; Paul Polman, Unilever CEO; Piet Joubert, Ingede Project Lead

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MARKET FORUM

Sydney Bruckner

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MARKET FORUM

One of WearCheck’s new ICPs (Inductively Coupled Plasma spectrometers) that has been installed at their Middelburg laboratory is pictured here.

A single stage rotary vane vacuum pump from Oerlikon Leybold Vacuum

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MARKET FORUM Mondi’s Richards Bay mill

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MARKET FORUM

Centac C400 centrifugal air compressor

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On the Move!

Adrian Buddingh

Johan Bester

Brian Abbott

Ian Nicholls

Greg Maruszewski

Sean Blake (left) and Jim Guild (right)

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Ernst Smith

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