Training course on energy efficiency in SMEs - engine-sme.eu

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Cooling Particularly in large commercial office buildings, high heat loads are developed through lighting, computing and other electrical sources. Further heat gains are derived from occupants, solar radiation and high outdoor temperatures. These factors make cooling of the indoor air essential. The choice is either to introduce mechanical cooling or to introduce ventilation cooling. In either case heat gains should be minimised by good building design and reduced power consumption. Mechanical cooling is energy intensive and contributes to peak power loads. When mechanical cooling is needed, ventilation must be minimised to prevent the unnecessary loss of conditioned air. www.engine-sme.eu
Summary Industrial ventilation generally involves the use of supply and exhaust ventilation to control • emissions, • exposure and • chemical hazards in the workplace Energy is used for two main purpose. To heat the supply air and to transport the air in and out of the building. There are many parts of the ventilation system where losses occur. The first step in performance optimisation should be the analysis of the process to determine the heat load and power to fans in its magnitude, duration and variability by hours and season. Surprisingly this step alone leads to significant energy savings. www.engine-sme.eu
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Training c
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Overview Energy Data Typical consum
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Characteristics Energy intense indu
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Euro per GJ Energy price trends -GA
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Contents of EN 16001 … standard f
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Energy Policy www.engine-sme.eu
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Formalised approach 1. Discuss the
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2/10. Clarify the process At an ear
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4/10. Inviting staff to participate
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6/10. Energy Policy - content • C
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Example Energy Policy SCA HYGIENE P
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8/10. Final Energy Policy The proje
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10/10. Updating the policy The ener
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The initial review The goal of the
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Step by step process The initial re
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Define operating conditions The eff
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Human factors Beside the technical
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Data source: Invoices Invoices pres
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Calculating data - options • To i
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Data source: Measurements The first
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Meter requirements • Make sure th
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EXAMPLE Data preparation The follow
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EXAMPLE Absolute and relative indic
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Input-Output analysis Input Output
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Flow chart With the data collected
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Analysis and interpretation Current
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Legal Obligations www.engine-sme.eu
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Legal obligations STEPS 1. Decide w
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Energy Programme www.engine-sme.eu
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Establish the procedure Within the
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Gathering proposals There are 2 use
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Improvement proposals on site Staff
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Cost Benefit Diagram Field A has th
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Scoring system Another efficient pr
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Scoring system 3. Assessment - Each
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Financial assessment 1. Static inve
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Static methods The costs of an inve
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Implementation of proposals In prac
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Identification of savings Apportion
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The Energy Programme If tasks are v
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Resources, Roles and Responsibiliti
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Energy Manager & Energy Team The to
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The Energy Team Members of the ener
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Resources • timetable • budget
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Awareness raising In the area of in
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Top management Top management must
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Provide necessary information The i
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Data, indicators and performance
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Possibilities to reduce losses Gene
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Awareness raising Awareness is the
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Staff participation - Check 1. What
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Communication Data about the Energy
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Methods 1. Indicators 2. Informatio
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Information in text form In 2003 th
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Information in graphs MWh 10000 800
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The communication network For each
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Structure of an Energy report Execu
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EM System documentation The primary
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Document control • Date stamped (
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4.4.5 Control of documents 1. Docum
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Operational control As a rule of th
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Energy Monitoring www.engine-sme.eu
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... gives information Before energy
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Core areas When setting up an energ
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Results An energy monitoring asks f
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Electricity Company Energy monitori
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Natural gas In some countries, e.g.
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Results 1: Energy consumption Energ
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Results 3: Average energy costs Ene
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Evaluation of Compliance www.engine
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Register of compliance Relevant act
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Nonconformity, corrective and preve
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Control of Records www.engine-sme.e
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Records needed • Training
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Document control • Revision Dates
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General requirements for all record
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Internal Audit www.engine-sme.eu
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Areas to cover within an audit The
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2. Energy data • Data is classifi
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4. Energy team • In larger organi
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6. Energy programme • The improve
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8. Legal obligations • There is a
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10. Energy intensive areas • Ener
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12. Maintenance • Energy intensiv
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14. Training • T
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16. EM System documentation • The
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The audit team • The members of t
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EXAMPLE Audit Overview Office Produ
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Audit procedure 1. The Audit team m
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Review by top management Top manage
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Compressed Air www.engine-sme.eu
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Checking the efficiency Since poor
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Analysis & calculation - 12 steps T
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Step 2: Measure the consumption of
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Step 4: Compare the specific energy
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Step 5: Calculating losses from lea
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Step 5: Calculating losses from lea
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EXAMPLE - Calculating losses from l
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Step 6: Calculating the effective p
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Step 7: Calculate pressure in distr
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Step 8: Loss of pressure through sy
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Step 10: Decrease of efficiency thr
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Step 12: Choosing the off-load/ on-
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EXAMPLE - track the efficiency . da
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EXAMPLE - wast heat: track the effi
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Electric Motors www.engine-sme.eu
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Life-time facts • Almost half of
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Main components The following compo
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Losses in a motor system The main p
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Motor applications The following ap
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1. Switch it off The simplest metho
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Permitted starts/hour 1. Switch it
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2. Reducing motor load There is lit
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4. Use motor control systems Variab
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6. Reconnect to STAR ‘STAR’ con
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7. Motor sizing It has been enginee
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Calculating the energy consumption
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EXAMPLE Calculating annual costs Mo
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Example: Comparing investment and r
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EXAMPLE Comparing HEF and normal mo
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Heating systems This module focuses
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Losses in a heating system As a rul
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Heat source and boiler • Oil boil
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Tube systems Heat in the form of ho
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Controls Controls allow you to regu
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Fuels Today fossil fuels such as oi
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Calculating running costs for heati
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Step 1: Identify heated area Identi
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Step 3: Develop an indicator All yo
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Reducing energy consumption Reducin
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B. Energy optimisation with simple
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Reduce room temperature at specifie
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Decrease heat losses through window
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Reduce boiler temperatures Hot wate
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Adjust preflux temperatures correct
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Adjust thermostat valves Make sure
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Check frost detection devices Check
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Hydraulic regulation of the heating
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Losses caused by emitted heat in ex
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Distribution losses During operatio
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Humidity and its influence on comfo
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Reduce costs by changing fuels and
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Lighting www.engine-sme.eu
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Lighting facts Lighting can be a bi
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a. Single rooms The lighting system
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c. Direct and indirect lighting Dir
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Light yield lm/W Life time hour Pur
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Requirements for illumination Illum
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Evenness of lighting Type of work E
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Evaluating costs for lighting It is
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Page 307 and 308: Making energy savings 1. First, foc
Page 309 and 310: Use of daylight Staff sometimes for
Page 311 and 312: Reduce lighting level Daylight cont
Page 313 and 314: Interiors and colours When decorati
Page 315 and 316: Use control systems Control systems
Page 317 and 318: Ventilation systems This module wil
Page 319 and 320: Background information Traditionall
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Page 323 and 324: Natural ventilation There are many
Page 325 and 326: Ventilation rates The quantity of v
Page 327 and 328: Facts The amount of energy consumed
Page 329 and 330: Components A ventilation system con
Page 331 and 332: Efficiency of fans Fan connections
Page 333 and 334: Specific Fan Power There are now st
Page 335 and 336: Air-cleaning and filtration systems
Page 337 and 338: Electric heating batteries An elect
Page 339 and 340: Heat recovery systems In a ventilat
Page 341 and 342: Control systems Ideally, buildings
Page 343 and 344: Evaluating the energy consumption E
Page 345 and 346: Evaluating the energy consumption A
Page 347 and 348: Example - energy consumption B. Bas
Page 349 and 350: Making energy savings The energy us
Page 351 and 352: Example Ventilation rates Office bu
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Page 355: Energy savings - 4. Use of control
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Training course on energy efficiency in SMEs - engine-sme.eu

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