DateJanuary-February, 2018 Print

The “Electrical and Electronics Engineering Congress 2017” (EEMKON 2017), organized by the Istanbul Branch of the Chamber of Electrical Engineers-TMMOB, was held from 16-18 November 2017 at the Harbiye Military Museum and Convention Center in Istanbul.

The congress, held this year for the second time, started with a concert and a dance show by Group Napolyon. Employment, industrialization and education issues of our country were pointed out in the congress, where Congress Organization Board Chairman Mehmet Turgut, Board Chairman of Istanbul Branch of EMO Erol Celepsoy, Board Chairman of EMO Hüseyin Önder and TMMOB Board Member Cengiz Göltaş made opening speeches. The speeches emphasized scientific education, but employment problems of engineers were also brought up.

The event was held in eight different halls, and seven symposiums were organized under the titles, “Biomedical Engineering,” “City and Electricity,” “Electric Industry,” “Communication Technologies,” “Electrical and Control Engineering,” “Energy Politics” and “Engineering Education.” Industry 4.0 and Nuclear Plants-Japan were organized as a joint session, in addition to the panels and sessions. More than 20 companies were present at the exhibition area, where new products and technologies were introduced.

EEMKON Organization Board Chairman Mehmet Turgut said that EEMKON, which is the most comprehensive and demanding congress, was about to provide an important platform in which new developments in electricity, electronics, control, electronic communication and biomedical engineering would be shared, and future-forward policies would be discussed. Turgut gave short information on the preparations and on the contributions of the national and international intellectuals, academicians, lecturers, universities, municipalities, public institutions and media organs to the EEMKON 2017 Congress.

Emphasis on Autonomous University, Scientific Education

Board Chairman of Istanbul Branch of EMO Erol Celepsoy started his speech by noting the 72nd anniversary of the establishment of the United Nations Education Science and Culture Organization, UNESCO. Celepsoy explained that the aim of one of the famous programs of UNESCO, “Science for a Sustainable Future,” needs a free discussion and creativity environment, unlimited by market conditions, and added, “In democratic countries, the government provides this opportunity and does not interfere with it. Otherwise, neither is science democratic nor is the country free. In our country, the days when autonomous free education was quality and widespread were, unfortunately, put behind. The autonomous organization

whose title has the word ‘science’ becomes dependent on today’s political power by its open and closed operations.”

Humanity can evolve into a positive position with Industry 4.0

Focusing on the detail that the congress will embrace comprehensive sessions, panels and forums about the development of professions and the country, EMO Board Chairman Hüseyin Önder delivered his thanks to the Board of the Istanbul Branch of EMO and its staff, who held the event, and to the institutions and organizations that contributed to the event.

Noting that the subject of the Industry 4.0, which can be regarded as a shared point of all symposiums within the scope of the congress, will be evaluated at a plenary session after the opening ceremony, Önder stated, “Employment and industry should be considered together with the development policies in order to move Industry 4.0, which is seen as a starting point by the capital during the crisis process and as a revolution in terms of the technological developments into a positive position for humanity.”

“TMMOB: 64-year old Modernization Story”

TMMOB Board Member Cengiz Göltaş noted that there are 24 chambers dependent on TMMOB, founded on 18 October 1954 as a constitutional organization and a professional, democratic mass organization which today has more than 520,000 engineers, architects and urban planners in Turkey. Göltaş added that “TMMOB’s name comes from a 64-year-old enlightenment and development story in which scientific thoughts are blended with technology, production, art and politics, and especially with education.”

Emphasizing that TMMOB not only provides its colleagues with professional, financial, social and cultural development, but also aims to use professional enrichment for the benefit of the public, Göltaş said the organization tries to build opinions in the direction of public benefit by being closely involved in professional areas.

The Aims from TESİD to 2023

The Board Chairman of Turkish Electronics Industrialist Organization (TESİD) Prof. Dr. Sıddık Yarman said TESID is a unity union bringing together all industrialists who are carrying out R&D with the local industrialists, and introducing their products to world markets, and added, “We have a natural tie with EMO. We also represent the relationship between employers and employees.”

Sharing his knowledge and consideration about the studies of TESİD and the industrial developments of our country, Yarman said, “We have contributed to the meetings on the development of the vision and determination of the state approach. We are still contributing to the five-year development plan, highlighting that the organization focuses on cyber safety and the digital revolution going on in industry today. Inviting EMO and its engineers to the TESID “Innovative Creativity Awards” ceremony, which will be held in January, Yarman stated that “research, development, technology development studies, development process of products and the commercialization of innovations are our absolute musts.”

While underlining that TESİD expects production in electronics sector to increase by 13% by 2035, and exports to grow by 13%, Prof. Yarman focused on the imports, which is a must in the sector, and asserted that he expects imports to grow by 12%.

The speakers from universities, public institutions and organizations and the private sector, as well as four foreign guests, participated in the three-day-long congress and exhibitions within the framework of Biomedical Symposiums conducted jointly with Energy Policy and studies TTB.

A Must for Urban Architecture: Elevators

A panel named “A Must in Urban Architecture: Elevators” was held in the City and Electric session, where innovations in rapidly developing electric, electronics and biomedical engineering in Turkey and in the world were shared during EEMKON 2017.

The speakers in the panel, which started with the moderatorship of the General Manager of GTS Elevator Fevzi Yıldırım, were Electrical Engineer Selim Dağdoğan from Mitsubishi Elevator, Arkel Electronics Board Member Melih Küçükçalık, Aybey Electronics General Manager Melih Aybey, Genemek General Manager Devrim Gecegezer, and Alparslan Temur, the technical manager of Akantel Electronics, the Turkish Distributor for Ziehl-Abegg,.

“We thank our chamber for giving our elevator representatives of the sector the chance to speak,” said Fevzi Yıldırım, who added, “The best representatives of our country and of the world, each an expert in his own profession, will inform us about today’s elevator sector.”

Variable-Speed Elevator Technology

After Fevzi Yıldırım’s opening speech, Selim Dağdoğan took the floor. Making a presentation titled “Variable-Speed Elevator Technology,” Dağdoğan said, “Controlling the load in the cabin continuously, variable-speed elevator technology uses the engine’s inert power at its nearly-balanced level. Controlling the cabin and its counter-weight regularly, elevators working over the rated speed provide solutions for the problems related to the drive system.” He added, “The main point of the development of this issue is customer dissatisfaction. The biggest problems, according to statistics, are the long waiting periods and the difficulties at using elevators at mezzanine floors. Various problems, like cabin running speed, long periods of cabin running, narrow cabins, low door control and closing speed, have been observed. Increasing the cabin numbers or the cabin speed can solve these problems. However, increasing the cabin numbers minimizes the area of use. Besides, it increases the cost. Another option is to speed the elevator. Purchasing elevators at the highest level means bigger engines and more money. It also causes too much energy consumption for its operation. That is why this is also not preferred, because it is costly.

“In return, Mitsubishi’s R&D staff came up with a new idea. Using the power of an idle elevator is thought to increase elevator speed. In this way, waiting periods can also be shortened. Identifying the elevator’s travel speed can be increased in terms of the cabin load. The productivity of variable speed elevators turned out to reduce waiting periods by 12% at stops and travel periods by 9% as a result of computer simulation. The cruising range is calculated as effective at high buildings, and also at the buildings with people numbers at medium-density.”

Energy classifications at elevators

After Selim Dağdoğan’s speech, Mehmet Melih Küçük Çalık took the stage. Focusing on the energy classification of elevators and measures taken for increasing the productivity, Çalış said, “Increasing energy needs, an inevitable result of development and growth, also increased the amount of released carbon in the atmosphere.” He added that, “A way of preventing the increase in carbon emission is to use renewable energy sources. Another preventive measure is to consume the used energy effectively, decreasing unnecessary carbon emissions. Studies on elevator and conveyor belts have been increased after 2005. VDI14707, published in 2009 by the German engineers’ union, became a guide for companies, and the publication of ISO25745 led to an internationally shared norm for elevators regarding energy consumption measurements and classification.”

Çalık said, “Nearly 30% to 40% of total electricity needs is building requirements, and 2% to 10% of the energy consumed in buildings is used by elevators. This is a considerable amount. The consumption share of elevators in the building also increases because of the vertical structuring. It is possible to save nearly 50% energy with simple solutions for elevators, so nearly 12-25 MTOE (million tons of oil equivalent) — 139,560 to 290,750 GWh — of energy consumption savings is possible. Considering that the Akkuyu nuclear plant has the installed capacity of a total 19.2 GWh from four reactors, can nonstop generate 19.2 times 24 hours times 365 days, or 168.192 GWh annual power. By increasing energy productivity, with the most modern one or two energy plants that can be installed at 1MWh power, energy can be saved by means of 15.000 to 33.000 wind turbines or 70 million to 145 million m2 of solar panels.”

Elevator control systems and elevator behaviors at disasters

General Manager of Aybey Electronics Melih Aybey made a presentation titled, “Elevator Control Systems and Elevator Behaviors at Disasters.” Discussing elevator control systems, Aybey also mentioned function of the control table and its activities through slides. During the second part of the presentation, he relayed information about how elevators work during natural disasters, fire and earthquake, and how elevator are used by fire department.

Discussing what an elevator does during an earthquake, Aybey continued, “When an earthquake sensor alarms, the elevator stops at the closest stop in accordance with its speed and opens its doors. Then, it prevents the elevator from working, and keeps the doors open. There are two different standards of elevator during fire. These are EN 81-73/72. EN 81-73 indicates what the elevator does when people in it during the fire. The elevator immediately goes toward the predefined fire escape floor when fire starts. If it is going in the opposite direction, it switches to go toward that floor. It opens its doors and prevents moving. It is also necessary for elevators to be used by the fire department in high buildings and skyscrapers where escape is impossible from a firefighter perspective. Elevators for fire department cannot go up in these high buildings, or if they do, they cannot function because the wind speed makes things difficult. Elevators for fire departments are newly developed methods during the fire. They are used for evacuating people during the fire. These elevators are quite special. They have to work even underwater. Cabin has to work up to 1.5 meters. while filled with water. It is a special system that has to have a special escalator, special power supply, etc. However, most importantly, it has to have a special corridor. Even if the fire starts, it must not reach this corridor. This is a special corridor.”

Accessibility for passenger elevators

After Melih Aybey’s speech, the general manager of Genemek, Devrim Gecegezer, took the floor. He made a presentation titled “TS EN 81-70 Accessibility for Passenger Elevators, Including Disabled People, its Effect on the Standard Buttons and Indicator Panels.” Reminding the audience that the main topic is the accessibility of elevators, Gecegezer said, “Architectural structures have to be in line with a specific standard so that we can use them.” Gecegezer continued, “Elevators are subject to the same standard in the same way. The name of this accessibility is EN 81/70. This is not only for disabled, but also for any person. This determines the standard of using elevators. And, of course, it provides the minimum necessities. You can do the better one, of course.”

After giving some information about the shared control system and height limitations on cabin and cabin button panel, Gecegezer underlined the key facts of button lines according to the stop points. Gecegezer added, “The aim of EN81-70 is to make the elevator accessible to everyone. A similar scandal as was for Volkswagen goes also for our country. You cannot understand if the button works when you press it. The person with no eye problem can understand it, but what about the people who have poor eyesight? The button will not alarm when pressed, it will alarm when the elevator is recorded.”

Gecegezer finished his speech as follows: “Buttons also have to have Braille alphabet. They need to have shapes and symbols understood by touching for the visually handicapped.

Gearless elevator engines and the use of VVVF

Alparslan Temur, technical manager of Akantel Electronics, the Turkish distributor for Ziehl-Abegg, then took the stage to make his speech. Making a presentation on “Gearless Elevator Engines and the Use of VVVF,” Temur mentioned several significant issues, including gearless elevator machines’ basic engine structure and the choice inverter and their advantages and disadvantages.

Speaking of the synchronized engines of geared machines through a slideshow in his presentation, Temur talked about the control system, panel adaptation, VVVF choice, fittings and, finally, safety details. The questions of the participants were also answered in an interactive way throughout the panel. 🌐