November, 11-15, 2025, Eilat, Israel
Archive - Electricity 2017 Archive - Electricity
Seat TAM 5
Energy efficiency - Energy Efficiency
Thursday | 9.11.2017 | 9:00
TAM 5.1
Calculation of energy efficiency for a chiller system
SPLV (System Part Load Value)
Yehonatan Ifraimov
CITech
Israel
Degree B.Sc In Mechanical Engineering, Faculty of Engineering, Tel Aviv University.
Sales engineer at the company CITech Company representative Carrier In Israel
Summary
Air conditioning systems have been tested in recent years not only for their ability to provide the required comfort conditions, but also for their energy efficiency. From this, regulations have been amended in Israel and around the world for measuring and setting standards for the energy efficiency of chillers at full load and partial load (EER, ESSER, IPLV).
Do these parameters represent the true energy efficiency of the chiller? Do the standard settings correspond to the actual efficiency of the chillers in the building, regardless of its location, the nature of the loads present in it, the configuration of the engine room, and the way the chillers operate as part of the chillers system in the building?
The lecture will deal with the actual calculation of the energy efficiency of a chiller system in a building and the tools available to planners for this purpose.
TAM 5.2
IE4 Synchronous Reluctance Motor and Drive Solution
Abstract
Energy consumption of motors is around 70% of the total industrial energy consumption in the world. Saving energy in industrial electrical motors can be a dramatic influence on the electrical bill.
A new innovative development in motors technology is the heart of the solution based on a magnet free motor meeting IE4 efficiency levels.
The lowest energy bill is achieved with speed control provided by VFDs and the excellent partial load efficiency performance of the SynRM (IE4 synchronous reluctance motor) Technology.
The ROI is between 2-3 years which is very fast and the direct impacts of the solution are:
Reduced energy bills for the entire life cycle of the motor
Extended life cycle of the motor
Reduced maintenance costs
Igal Kriheli
ABB Technologies
Israel
Igal Kriheli is working at ABB Technologies Ltd. for 4 years.
For the last year as Local business unit Manager for RM unit and before as the service manager in the RM unit.
Before ABB Igal worked at MEKOROT for 9 years as Head of the electricity team
TAM 5.3
Hydronic Balancing of Chilled Water Systems - Manual and Automatic
Abstract
Fan coils in a cooling system which are located far away from the pump are - without hydronic balancing - not sufficiently supplied with cold water. On the other hand, others located very close to the pump are over-supplied.
This not only costs valuable energy and drives up costs, but also influences the living quality or the work performance (eg in office buildings.
Hydronic balancing ensures an optimal water distribution in the cooling water system, for example by guaranteeing the necessary volume flow via the fan coil by using presettable balancing valves or automatic flow regulators. By means of the hydronic balancing all components such as fan coils, chilled beams, balancing valves, pumps and pipes are coordinated and adjusted.)
The lecture contains the topics:
General problems of non-balanced chilled water systems
Manual balancing of the chilled water system due to the use balancing valves + description of the different valve types
Automatic balancing of the chilled water systems due to the use of differential pressure regulators or pressure independent control valves + description of the different valve types.
Matthias Braun
Oventrop & Co. KG
Germany
2007
Graduation in Business Studies at the University of Paderborn / Germany.
Subject area Marketing, Production logistics, International Management.
German degree “Diplom Kaufmann”
2007 - today
International Sales Manager at Oventrop GmbH & Co. KG, Germany
During the past 10 years responsible for the markets in Southeast Asia, Africa, Austria
Actual responsible for the markets in Israel, South America and the Oventrop subsidiary in Italy.
Further education: Renewable Energy Management, Strategic Management, International negotiations.
On going training in Hydronic balancing of heating and cooling systems, Solar thermal energy systems and Design of potable water systems as well as for Decentralized heating systems.
TAM 5.4
Pump Field Efficiency Testing Automation
Abstract
A new trend in pumps technology is utilization of automated pump field performance data acquisition system to assess pumps components' reliability as well as live on-line efficiency measurements for energy optimization. The article describes the process of automated data acquisition system “PREMS-2A” (Pumps Reliability and Efficiency / Energy Monitoring System).
The importance of knowing the actual efficiency of a pump is to practically integrate such data within the repair and upgrade scheduling process used by the plants interested in energy savings, in other words - to do something about it. For a large pump, even a few points of efficiency degradation may translate to tens of thousands of dollars wasted if proper periodic adjustments are not implemented. Consider, for example, a typical large 1500 HP cooling water pump at a power plant or a water booster station. Operating non-stop, at $ 0.10 per kW-Hr cost, this translates to (1500x0.746) x 24 x 365 x 0.1 = $ 980,244 per year, and each 1% of efficiency degradation would thus mean $ 98,024 dollars a year - not a small change! After 10-15 years in service, it is not uncommon for pumps to easily drop 5-10% in efficiency, for various reasons - wear, off-BEP operation due to the process changes, etc. Thus, trending and monitoring pumps efficiency helps decide, when and should, to schedule the efficiency repair upgrade, and evaluate the return on investment against the proposed cost of such repairs / upgrades.
Dr. Lev Nelik
Pumping Machinery
USA
Dr. Nelik has 30+ years experience with pumps and pumping equipment. He is a Registered Professional Engineer, who has published over fifty documents on pumps and related equipment worldwide, including a "Pumps" section for the Encyclopedia of Chemical Technology (John Wiley), a section for the Handbook of Fluids Dynamics (CRC Press), and a book "Centrifugal and Rotary Pumps: Fundamentals with Applications", by the CRC Press. He is a President of Pumping Machinery, LLC company, specializing in pump consulting, training, and equipment troubleshooting. His experience in engineering, manufacturing, and field troubleshooting includes: Ingersoll-Rand (Engineering), Goulds Pumps (Technology), Roper Pump (Vice President of Engineering, and Repair / Overhaul) and Liquiflo Equipment.
Dr. Nelik is an Editor of Pump Magazine, an Advisory Board Member of Water and Wastes Digest, Editorial Advisory Board Member of Pumps & Systems magazine, and a former Associate Technical Editor of the Journal of Fluids Engineering. He is a Full Member of the ASME, and a Certified ASPICS. He is a graduate of Lehigh University with Ph.D. in Mechanical Engineering and a Masters in Manufacturing Systems. He teaches pump training courses in the US and worldwide, and consults on pumps operations and troubleshooting, engineering aspects of centrifugal and positive displacement pumps, maintenance methods to improve reliability, improve energy savings, and optimize pump-to-system operation.
Dr. Nelik is a Committee Chairman of the International Center of Pumping Machinery Research and Development in Beer Sheva, Israel, with the affiliated office in Atlanta, US. Dr. Nelik holds dual citizenship in Israel and US.
TAM 5.5
IEC 60364-8-1 International Standard
For determining the energy efficiency of an electrical installation
Teddy Nickolayevsky
Siemens
Israel
Date of birth: 02.07.76
education
2002 - 2006 -. PhD courses in Electrical Engineering and Power Electronics, Tel Aviv University. Starting research in the field of developing an innovative electronic speed regulator for induction motors.
1993-1998 - BA (MSc) and MSc in Electrical Engineering for High Current and High Voltage, State Technical University, Donetsk, Ukraine. Power plant trend. Graduation with honors.
Holder electrician license engineer.
Work Experience
2015 - to date
"Siemens Israel" - the largest international company in the world for the production of products and industrial electrical systems. Position - Project Engineer for large industrial electrical and propulsion systems, Industrial Division and propulsion.
2011 - 2015
IDE Technologies - The world leader in water treatment solutions. The company is engaged in the development, engineering and construction of projects in Israel and abroad. Position - Senior Electrical Engineer.
2007 - 2011
"Siemens Israel" - the largest international company in the world for the production of products and industrial electrical systems. Position - Electrical Engineer for the engineering of large industrial propulsion systems, in the Automation and Propulsion Division.
2000 - 2007
"Yona Ushpiz Electric Motors Ltd." - a company for the development and production of industrial electric motors with a power of 2500KW and voltages up to 6900V. Position - Chief Engineer of the company.
Summary
In the last decade, great emphasis has been placed on the efficiency of electrical systems and energy efficiency. Following the demand for energy efficiency, most companies in the economy conduct energy surveys by independent forces or by a group of outsiders who specialize in this. The problem is that each and every company conducts the survey based on its experience and understanding of electrical systems and energy efficiency. To date, there has not been a uniform list of topics for testing in an electrical installation and no uniform criterion for determining the efficiency of the installation.
In 2014, International Standard IEC 60364-8-1 was issued, which deals with energy efficiency in low-voltage installations. The standard applies to industrial electrical systems, infrastructure, office buildings and private buildings. The standard refers to existing facilities as well as the design of new facilities and gives methods and recommendations for the efficient design of an electrical facility taking into account the power consumption and taking into account the LAYOUT of the facility. For the first time in the world, a standard establishes a method for determining the energy efficiency of an entire electrical installation and determines energy rating levels for the installation.
The lecture will explain the methods for efficient planning of new facilities and testing of existing facilities in order to determine an energy rating. A detailed explanation will be given of the methodology of testing the facility by dividing it into 16 separate topics, examining the depths of each section and giving a score of the facility's efficiency in each section according to the requirements of the standard. (Electrical installation efficiency class). The standard sets 5 energy rating levels of facilities from the lowest level EIEC0 to the highest level EIEC4. The energy rating level of the facility depends on the type of designation of the facility - industrial facility or public facility (residential building).