Showing posts with label guide. Show all posts
Showing posts with label guide. Show all posts

23 May 2015

A Hi Rocky Relationship Is it Not? Water & Electricity!

A Hi Rocky Relationship Is it Not? Water & Electricity! 


Mixing water and electricity doesn’t usually end well, but marine engineering group Knud E Hansen A/S sees this rocky relationship as a challenge.

According to the Handy Shipping Guide, the company has designed a new ferry capable of making an entire voyage on electric power. 

Many shipbuilders are following suit, looking for ways to create more eco-friendly, sustainable seafaring options, but all-electric propulsion systems come with their own unique issues especially in terms of maintenance; how do engineers and operators make sure their boats stay afloat?

Slow & Steady:


The new ferry comes in at 35 meters in length with a beam of 11 meters, capable of carrying 170 passengers and 12 cars from Nolsoy island to Torshavn and back again on single battery charge. 

It can also withstand waves of up to three meters high and was designed with energy conservation in mind, featuring both batteries and a heat recovery system. 

It won’t win any speed records, since it’s nowhere near the 100 km/hr or better ships designed to run on liquid natural gas (LNG), but the ability to run entirely on battery power and survive a potentially rough sea crossing is no mean feat. 

Simply put, the Knud E Hansen A/S ferry speaks to function more than form—and eschews traditional fuel-based thrust for clean and reliable electricity. 

Emerging Issues:



According to a Hitachi white paper, on board electrical propulsion systems come with a number of advantages including reduced noise and the integration of both power and thrust systems, but they aren’t without issues: Electric systems come with a higher initial cost, increased energy conversion loss and large overall “footprint” owing to more total component parts. 

Water infiltration can cause serious issues, anything from short circuits to total system failure.For example, Cruise Critic reports that last year a Carnival Cruise ship was forced to cut out a port of call after an electrical transformer malfunction, which limited the ship’s overall speed. In the case of a complete electrical drive system, such a short could be disastrous.

The New Maintenance:


What does this mean for shipping companies and marine organizations? That in an era of clean power, new maintenance tools are needed. 

Marine Insight argues that on board engineers must now be able to tackle challenges such as electrical motor overhauling and shore power supply connection, in addition to having complete knowledge of an engine’s automation system. 

Scale deposits also pose an issue, potentially inhibiting electrical connections and leaving a ship dead in the water; regular and precise descaling is required to keep engines in top shape.

The rise of Eco-friendly ship propulsion systems means less waste and better ROI for companies, but also comes with unique maintenance challenges—even the best electric system generates no profit in dry dock. 

Dealing with Scale Deposits in Maritime Environments:

Within ocean water, dissolved solids lead to lime scale deposits in offshore equipment systems.

Build-up of lime scale (calcium carbonate) deposits present problems, particularly in water cooled engine jackets as well as heat ex changers for production of hot water service for crew and passengers. In ship waste water piping, scale deposits will block off lines and scale up tanks as well causing adverse effects on pump seals and valves.

Boilers, steam turbines and ballast systems are also vulnerable to scale build-up of and subsequent problems of overheat, shut down or blockages.

Lime Scale deposits in these equipment systems can be effectively remedied by the use of inhibited acid descaling. 

Descalers quickly dissolve calcium, lime, rust, lithium carbonate and other types of deposits from passages in water cooled or heated equipment as described.


31 Oct 2014

Hi On target: defence career guide for graduate engineers.

Hi On target: defence career guide for graduate engineers.

Defense  - which brings in one of the widest ranges of engineering disciplines of any sector - offers graduates a host of opportunities at the cutting edge of technology

Why work in defense?


The UK defence sector is about as cutting edge as it gets. Pictured: the Taranis UAV.
The UK defence sector sits at the cutting edge of technology and needs high-calibre engineers from a myriad of disciplines to help uphold operations in-theatre (that’s military speak for on the battlefield) manufacture and maintain new and existing platforms, and design the weapons for tomorrow’s battlespace.

UK Defence spending remains high:

Depite well-publicised recession-era cut-backs the UK has the biggest defence budget in Europe and plans to spend £164bn on equipment and equipment support over the next ten years. Furthermore, the nation still spends over two per cent of its income on defence and defence exports are a vital component of the British economy.
The International Institute for Strategic Studies notes that Britain’s 2013 defense expenditure ranks it fifth in the world behind the USA, Russia, China, and Saudi Arabia. The industry as a whole has an annual turnover of £22bn and defence export sales stood at £9.8bn in 2013, an 11.4 per cent increase on 2012.  
  


The sector is a major employer:


Technologies like BAE’s QWarrior system are helping to usher in the soldier of the future.
Over 160,000 people are employed in the defence industry, and 10 per cent of UK manufacturers serve it too. 
The CBI (Confederation of British Industry) notes that there are more small to medium-sized companies (SMEs) operating in the UK’s defence manufacturing sector than France, Italy, Germany, and Spain combined, and Britain is currently the world’s second largest defence exporter. 

You’ll have responsibility from day one:

The defence industry requires its recruits to adapt quickly and many of the larger companies offering graduate training schemes are keen for their recruits to be exposed to a number of relevant business units where they can expect their problem solving skills, team working skills and stakeholder management skills to be tested at an early stage in preparation for the career that lays ahead of them. 

What does the sector do?

The defense industry supports Britain’s national security and that of the sovereign nations it exports related products and services to.  

It is building major platforms for air, land and 

sea defense:


Big ticket projects like the aircraft carrier remain a major source of jobs.
The RAF’s Typhoon fleet is to be modernised to give it air-to-air and air-to-ground capabilities. The government has also given assurances that by the 2020s the RAF will be equipped with the F-35 Joint Strike Fighter, the world’s most advanced multi-role combat jet (more on that below) plus a fleet of Unmanned Air Vehicles for use in combat and reconnaissance missions.   
   

The second Royal Navy aircraft carrier, HMS Prince of Wales, is currently under construction with the Aircraft Carrier Alliance (ACA) in Scotland, whilst in Barrow-in-Furness ACA member BAE Systems is building seven Astute-class hunter-killer submarines and is increasing work on the Successor programme in preparation to replace Vanguard class nuclear powered ballistic missile submarines. It looks very likely also that the government will place an order for 13 Type 26 frigates for the navy, which will take work at BAE’s Glasgow sites into the 2030s.
The army isn’t missing out either. The Ministry of Defence recently placed an order with General Dynamics UK worth £3.5bn for 589 SCOUT Specialist Vehicles for the British Army. The government has also committed itself to programmes that will see enhanced communications equipment and new strategic lift aircraft supplied to the army.

It is taking a lead in the world’s largest defence project:


Assembly of the F35.
The F-35 Lightning programme is currently the largest defence programme in the world with around 11 defence forces expected to take delivery of the fifth generation fighter jet. 
Over 500 UK companies are involved in the 40 year programme with Cobham designing and manufacturing the refuelling probe for the F-35B short take-off/vertical landing and the F-35C carrier variant; Rolls-Royce providing the lift system for the F-35B STOVL, which consists of the lift fan, the three-bearing swivel module, the roll post modules and the lift fan vane box; Ultra Electronics producing the aircraft’s suspension release equipment; and MBDA producing the Advanced Short Range Air-to-Air Missile, which can be installed within the weapons bay and on external wing stations of the aircraft. MBDA is also working with Lockheed Martin and the MoD to integrate the Meteor missile into a future upgrade of the UK’s F-35 fleet. 

It thrives on collaboration:


The Eurofighter Typhoon program is a great example of a collaborative project
A common facet of the modern defence industry is the requirement to work collaboratively with different companies, often across separate territories, to produce a platform and maintain it throughout its lifetime.
This is a common requirement and ACA serves as a fine example, joining together companies including BAE Systems, Thales UK and Babcock who make up three quarters of ACA, the forth member being the MoD.
Taking collaboration further is the Eurofighter Typhoon programme, a European collaboration that has Britain’s BAE Systems, Italy’s Alenia Aermacchi, and Airbus Defence & Space in Germany and Spain managing industry suppliers employing over 100,000 people across the supply chain.

What kinds of jobs are on offer?


A soldier launching the Black Hornet Nano Unmanned Air Vehicle.
What really sets the defence industry apart from others competing for engineering graduates is the sheer range of disciplines required to build and provide through life support for platforms and related systems used by the world’s armed forces. These disciplines include: aerospace/aeronautical, automotive, chemical, civil/structural, electrical, electronics, environmental, manufacturing, maritime, materials, mathematics, mechanical, physics and software. 
‘If you look at our website there’s probably over 50 engineering disciplines and roles that you could go into across the company and across the industry there are probably more opportunities than that,’ commented Ayesha Godigamuwe – early career advisor at BAE Systems. 
Qinetiq, a Farnborough-based company that employs over 6,000 staff across sites in Europe, Australia and the US, provides a range of defence security services on land, air and at sea has requirements for design, structural, maritime, mechanical, safety, electrical, communications, electronics, plus software and systems engineers. 
BAE, with a headcount of around 88,000 staff worldwide, has a current requirement for engineers specialising in safety, electrical engineering, naval architecture, plus systems and mechanical engineering. 

Entry standards are high and so is early remuneration:



The Striker II helmet, designed and developed by BAE SYSTEMS, worn by Chief Test Pilot Mark Bowman in the cockpit of a Eurofighter Typhoon at Warton, Lancashire.
The industry is competing for high-calibre graduates - usually security cleared and with a 2:1 - from all engineering disciplines to fill challenging but well-remunerated roles in the public and private sector.  
The Defence Science and Technology Laboratory (Dstl), an organisation with a remit to supply sensitive and specialist science and technology services to the MoD and wider government, offers its graduates approximately £22,167 on starting; whilst in the private sector BAE Systems offers its graduates between £24,000 and £28,000 on joining. MBDA Missile Systems offers £25,000 plus a £2,000 joining bonus when graduates join its two-year scheme. 
  

Good salaries come as standard in the defence industry, although average starting salaries at SMEs drop to between £18,000 and £25,000. 

Where are the jobs?

The large OEMs (original equipment manufacturers) including BAE Systems, Lockheed Martin UK, Boeing UK and Northrop Grumman, operate from a number of sites across the UK with clusters of defence companies in general to be found in the West Midlands, south east, south west, and north west England.
Defence companies are similarly scattered throughout Scotland, Wales and Northern Ireland.
The locations - home and abroad - are varied, as are the opportunities that the defence industry offers. 
‘There’s such a variety of projects to get involved in across air, land and sea that you’ll be occupied and challenged as an engineer,’ said Godigamuwe.
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24 Mar 2014

Hi ASHRAE GreenGuide

Hi ASHRAE GreenGuide
The Design, Construction, And Operation Of Sustainable Buildings.
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The newly published fourth edition of the ASHRAE GreenGuide contains updated guidance that reflects how green building practices as well as the industry have changed since the first edition was published in 2004.
Over the past decade, the industry has witnessed the continued evolution of green building programs have evolved from voluntary to more in the industry mainstream or mandatory, according to ASHRAE.
ASHRAE GreenGuide: Design, Construction, and Operation of Sustainable Buildings, 4th Edition, uses an integrated, building systems perspective to provide need-to-know information on what to do, where to turn, what to suggest, and how to interact with other members of the design team.
The guide contains several changes that will impact green building design.
First is a complete revision of the indoor environmental quality (IEQ) chapter with much of the content based on the Indoor Air Quality Guide: Best Practices for Design, Construction and Commissioning.
Another change is a new chapter on sustainable sites.
As in previous editions, the book contains Green Tips, or which are sidebars containing information on techniques, processes, measures or systems. There are 44 Green Tips in this edition, including new ones on topics such as condensing boilers, rain gardens, green roofs and data centers. 
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This fourth edition of ASHRAE GreenGuide is an easy-to-use reference with information on almost any subject that should be considered in green-building design.
The Green Tips found throughout this edition highlight techniques, processes, measures, or special systems in a concise, often bulleted, format. Also, information is provided in dual units - Inch-Pound (I-P) and International System (SI) - so that the content is easily applicable worldwide. References and resources mentioned are listed at the end of each chapter for easy access.
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2 Mar 2013

Hi Ebook - LEED New Construction Project Management Book!.

Hi Ebook - LEED New Construction Project Management Book!.

MC Gr aw-Hi ll Professional | 2010 | ISBN: 0071744452 | 496 pages | PDF | 14,9 MB 
A One-Stop Guide to Managing LEED-New Construction Projects:




This Green Source book explains, step by step, how to integrate LEED-New Construction (NC) rating system requirements into the building design and construction processes. Project planning, goals, coordination, implementation, and documentation are covered in detail. 


LEED-New Construction Project Management provides a tested framework for taking a project from inception to successful certification and shows you how to master the tools to make the process more efficient. Three in-depth case studies covering new commercial building construction, major renovations, and a portfolio of buildings highlight the strategies presented in the book. 




LEED-New Construction Project Management covers:

The LEED rating system and LEED-NC credit categories 
The project management process 
Project definition and goal setting 
Design phase integration 
Construction phase implementation 
The LEED process: adaptability, applicability, and best practices 
Future trends 

Credit implementations: sustainable sites; water efficiency; energy and atmosphere; materials and resources; indoor environmental quality; innovation in design.

6 Oct 2012

Hi ASHRAE Advanced energy design Guide for small to medium office buildings:

Hi ASHRAE Advanced energy design Guide for small to medium office buildings:

The Social fact that the necessary requirements to meet the needs, wants and greater demands of the social collective responsibility that has surcome to the realization of global awareness of the potential impact of climate change has and is therefore a continues driving force of delivering the message that low energy consumption and being environmentally responsible and maintaining high performance buildings are the future of our built environment .

The first step to achieving a net zero energy building as explained in this discussion document link by 50% Provided recommendations of energy savings over the minimum code requirements of ANSI/ASHRAE/IESNA Standard 90.1 discussed as well for small to medium office buildings concerning indoor air quality. Other Advance energy guides are available that discuss other types of buildings and features.


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