UB06 DISTRICT HEATING<\/h2><\/div><\/p>\nConcentrate thermal generation infrastructure with renewable energy to service several buildings<\/h4>\n
<\/div><\/div>[\/vc_column_inner][vc_column_inner width=”1\/3″][vc_single_image image=”24439″ img_size=”medium” alignment=”right”][\/vc_column_inner][\/vc_row_inner][vc_empty_space][vc_text_separator title=”” color=”custom” border_width=”4″ accent_color=”#fae699″][vc_column_text]Aim<\/strong><\/p>\nTo efficiently implement heat generation infrastructures that serve and supply inhabitants and their activities. The concentration of energy systems lead to an optimum management of both production and makes the necessary infrastructures more efficient.<\/p>\n
Why?<\/strong><\/p>\nOne of the main goals in the search of sustainable cities is the raising of the efficiency in heat generating systems with renewable energies that serve and supply the inhabitants and the activities in a given area. Technological advances have made it possible to overcome many drawbacks of centralised systems.
\nAdvantages:
\n\u2022 Better performance
\n\u2022 Savings in space taken by equipment
\n\u2022 Access to an energy source with an economically competitive cost
\n\u2022 Reduced investment in equipment
\n\u2022 Reduced management
\n\u2022 More efficient equipment that reduces environmental impact
\n\u2022 More time and cost effective centralised management and maintenance
\n\u2022 Monitoring of environmental impact
\n\u2022 Makes the use of renewable energies and waste heat possible
\n\u2022 Makes it possible to use non-polluting refrigerants
\n\u2022 Diversified energy supply<\/p>\n
Como?<\/strong><\/p>\nDistrict heating is produced in a power plant and distributed through an urban network to serve several buildings. Hot water from a heat production plant is distributed by thermally insulated pipes to the building sub-plants where, with a heat exchanger, the water is prepared with the characteristics (pressure and temperature) of the building installation.
\nThe advantage of large heat-producing systems is that they have much higher yields than small ones, which means a great reduction in green-house gas emissions. There is also a system of frequent maintenance and servicing and, as power plants consume a large amount of fuel, lower fuel prices can be negotiated with suppliers.
\nRenewable energy systems, such as geothermal energy or residual energy from thermal processes in industry or from the generation of electricity (cogeneration), should be used as heat sources. The technical disadvantages (leaks and pumping) are within an acceptable range, approximately 8 % in terms of the overall energy efficiency of the system.
\nThe space for heat accumulation is another matter related to centralised systems to be taken into account in urban planning. In the two preceding decades, seasonal accumulation (summer\u2013winter) has been proven to be viable. It should be noted that accumulating cooled or heated water in tanks is one of the methods widely applied to reduce peak demand. It has multiple uses: it can be used to reduce the installed power in equipment, to obtain continuous operation of the equipment without sudden fluctuations and at optimum performance levels; this means higher average efficiency and longer equipment life. In cogeneration equipment, it maximises the production of electricity; in electric refrigeration machines, electricity consumption can be increased in the off-peak rate period and reduced in the peak rate period.<\/p>\n
The structure of a biomass system can be broken down into three distinct parts:
\n\u2022 fuel supply \/ geothermal capture system,
\n\u2022 power plant and
\n\u2022 distribution network and supply of heating to buildings.<\/p>\n
All components of the distribution piping system must meet the technical requirements for the following standards:
\n\u2022 EN 253. Pre-insulated piping systems for underground hot water networks.
\n\u2022 EN 448. Pre-insulated fittings for underground hot water networks.
\n\u2022 EN 488. Pre-insulated steel valves for underground hot water networks.
\n\u2022EN 489. Assembly of gaskets for pre-insulated district heating pipes.
\nPipes must be of St. 37.0 BW quality steel compliant to DIN 1626 or equivalent and their dimensions must conform to ISO\/DIN 2458. Foam insulation must meet the requirements of EN 253. The outer shell must meet the technical requirements of EN 253.<\/p>\n
There is a connection box at the main entrance to each building that is being served. These connection boxes must be equipped with the necessary means for isolating circuits, automatically regulating the flow of the water supplied and controlling temperature and pressure. These dynamic regulation systems are essential so that each unit of the installation
\nworks according to the parameters for which it has been designed and guarantees thermal comfort while curbing energy consumption.
\nIn short, with automatic balancing, the aim is to achieve a constant flow of the hydraulic circuits that compensates for the varying differential pressures and fluctuations in those pressures at all times during the operation of the installation, thus avoiding circuits with excess or deficiency of flow that would have a negative impact on the comfort of buildings and on the pumping pressure in the production centre.
\nThe municipality of Lugo has already completed the implementation of a thermal energy distribution network in municipal buildings on the grounds that FRIGSA used to occupy. This is a centralised thermal energy production facility running on biomass; energy is distributed by means of a district heating network to the buildings owned by the municipality in the Parque da Milagrosa in Lugo to supply heating systems, production of sanitary hot water (AQS) and air conditioning.[\/vc_column_text][vc_single_image image=”24691″ img_size=”full”][vc_column_text]Thermal energy distribution network in municipal buildings on the former FRIGSA site. Source: http:\/\/lugo.gal\/es<\/em>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″ css=”.vc_custom_1614096023374{background-color: #fdfae4 !important;}”][vc_text_separator title=”building SCALE INTERVENTION” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_single_image image=”24679″ img_size=”full” alignment=”center”][vc_text_separator title=”ISSUES AFFECTED” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_gallery type=”image_grid” images=”23817,23899,23824,23820,23826,23828,23902,23821,23908,23819,23818,23897″ onclick=”custom_link” custom_links=”https:\/\/www.saulverez.com,https:\/\/www.concellodelugo.com” img_size=”52×52″][vc_text_separator title=”SUITABLE FOR COMBINING WITH OTHER SOLUTIONS” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_gallery type=”image_grid” images=”25568,25569″ onclick=”custom_link” img_size=”150×55″ custom_links=”http:\/\/www.lugobiodinamico.eu\/catalogo\/en\/proyectos\/ub01-density-type-of-building\/,http:\/\/www.lugobiodinamico.eu\/catalogo\/en\/proyectos\/ub02-orientation-of-buildings\/,”][vc_text_separator title=”MEASURING ELEMENTS” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]Indicator<\/strong>
\nEnergy self-sufficiency
\nUnit<\/strong>
\nAUe (%)<\/p>\nMinimum goal<\/strong>
\n50%
\nDesirable goal<\/strong>
\n90%<\/p>\nMeasure method \/ Formula<\/strong>
\nEnergy self-sufficiency (%) =A \/ B
\nA: Production of renewable energies
\nB: Energy consumption[\/vc_column_text][vc_text_separator title=”planning level” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]Master Plan
\nDevelopment Plan
\nBuilding construction project
\nUrban planning[\/vc_column_text][vc_text_separator title=”AGENTS INVOLVED” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]Planning Design team
\nCouncil arquitect
\nReal estate developers[\/vc_column_text][vc_text_separator title=”Possible actions promoted by the administration” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]\u2022 Financial bonuses to favour their implementation
\n\u2022 Amendment of regulations to authorise these systems[\/vc_column_text][vc_text_separator title=”What should we consider for its implementation?” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]\u2022 Pressure losses if ductwork is not properly isolated
\n\u2022 Planned maintenance management
\n\u2022 Perfectible design: planning in such a way as to enable subsequent network improvements such as system support through new renewable energy generation systems such as photovoltaics.[\/vc_column_text][vc_text_separator title=”EXAMPLES” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]Lugo ![\"\"](\"http:\/\/www.lugobiodinamico.eu\/catalogo\/wp-content\/uploads\/2019\/02\/Enlace-web-150x150.png\")
<\/a><\/p>\nInega Galicia ![\"\"](\"http:\/\/www.lugobiodinamico.eu\/catalogo\/wp-content\/uploads\/2019\/02\/Enlace-web-300x300.png\")
<\/a><\/p>\n
Concentrate thermal generation infrastructure with renewable energy to service several buildings<\/h4>\n
<\/div><\/div>[\/vc_column_inner][vc_column_inner width=”1\/3″][vc_single_image image=”24439″ img_size=”medium” alignment=”right”][\/vc_column_inner][\/vc_row_inner][vc_empty_space][vc_text_separator title=”” color=”custom” border_width=”4″ accent_color=”#fae699″][vc_column_text]Aim<\/strong><\/p>\n To efficiently implement heat generation infrastructures that serve and supply inhabitants and their activities. The concentration of energy systems lead to an optimum management of both production and makes the necessary infrastructures more efficient.<\/p>\n Why?<\/strong><\/p>\n One of the main goals in the search of sustainable cities is the raising of the efficiency in heat generating systems with renewable energies that serve and supply the inhabitants and the activities in a given area. Technological advances have made it possible to overcome many drawbacks of centralised systems. Como?<\/strong><\/p>\n District heating is produced in a power plant and distributed through an urban network to serve several buildings. Hot water from a heat production plant is distributed by thermally insulated pipes to the building sub-plants where, with a heat exchanger, the water is prepared with the characteristics (pressure and temperature) of the building installation. The structure of a biomass system can be broken down into three distinct parts: All components of the distribution piping system must meet the technical requirements for the following standards: There is a connection box at the main entrance to each building that is being served. These connection boxes must be equipped with the necessary means for isolating circuits, automatically regulating the flow of the water supplied and controlling temperature and pressure. These dynamic regulation systems are essential so that each unit of the installation Minimum goal<\/strong> Measure method \/ Formula<\/strong> Inega Galicia
\nAdvantages:
\n\u2022 Better performance
\n\u2022 Savings in space taken by equipment
\n\u2022 Access to an energy source with an economically competitive cost
\n\u2022 Reduced investment in equipment
\n\u2022 Reduced management
\n\u2022 More efficient equipment that reduces environmental impact
\n\u2022 More time and cost effective centralised management and maintenance
\n\u2022 Monitoring of environmental impact
\n\u2022 Makes the use of renewable energies and waste heat possible
\n\u2022 Makes it possible to use non-polluting refrigerants
\n\u2022 Diversified energy supply<\/p>\n
\nThe advantage of large heat-producing systems is that they have much higher yields than small ones, which means a great reduction in green-house gas emissions. There is also a system of frequent maintenance and servicing and, as power plants consume a large amount of fuel, lower fuel prices can be negotiated with suppliers.
\nRenewable energy systems, such as geothermal energy or residual energy from thermal processes in industry or from the generation of electricity (cogeneration), should be used as heat sources. The technical disadvantages (leaks and pumping) are within an acceptable range, approximately 8 % in terms of the overall energy efficiency of the system.
\nThe space for heat accumulation is another matter related to centralised systems to be taken into account in urban planning. In the two preceding decades, seasonal accumulation (summer\u2013winter) has been proven to be viable. It should be noted that accumulating cooled or heated water in tanks is one of the methods widely applied to reduce peak demand. It has multiple uses: it can be used to reduce the installed power in equipment, to obtain continuous operation of the equipment without sudden fluctuations and at optimum performance levels; this means higher average efficiency and longer equipment life. In cogeneration equipment, it maximises the production of electricity; in electric refrigeration machines, electricity consumption can be increased in the off-peak rate period and reduced in the peak rate period.<\/p>\n
\n\u2022 fuel supply \/ geothermal capture system,
\n\u2022 power plant and
\n\u2022 distribution network and supply of heating to buildings.<\/p>\n
\n\u2022 EN 253. Pre-insulated piping systems for underground hot water networks.
\n\u2022 EN 448. Pre-insulated fittings for underground hot water networks.
\n\u2022 EN 488. Pre-insulated steel valves for underground hot water networks.
\n\u2022EN 489. Assembly of gaskets for pre-insulated district heating pipes.
\nPipes must be of St. 37.0 BW quality steel compliant to DIN 1626 or equivalent and their dimensions must conform to ISO\/DIN 2458. Foam insulation must meet the requirements of EN 253. The outer shell must meet the technical requirements of EN 253.<\/p>\n
\nworks according to the parameters for which it has been designed and guarantees thermal comfort while curbing energy consumption.
\nIn short, with automatic balancing, the aim is to achieve a constant flow of the hydraulic circuits that compensates for the varying differential pressures and fluctuations in those pressures at all times during the operation of the installation, thus avoiding circuits with excess or deficiency of flow that would have a negative impact on the comfort of buildings and on the pumping pressure in the production centre.
\nThe municipality of Lugo has already completed the implementation of a thermal energy distribution network in municipal buildings on the grounds that FRIGSA used to occupy. This is a centralised thermal energy production facility running on biomass; energy is distributed by means of a district heating network to the buildings owned by the municipality in the Parque da Milagrosa in Lugo to supply heating systems, production of sanitary hot water (AQS) and air conditioning.[\/vc_column_text][vc_single_image image=”24691″ img_size=”full”][vc_column_text]Thermal energy distribution network in municipal buildings on the former FRIGSA site. Source: http:\/\/lugo.gal\/es<\/em>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″ css=”.vc_custom_1614096023374{background-color: #fdfae4 !important;}”][vc_text_separator title=”building SCALE INTERVENTION” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_single_image image=”24679″ img_size=”full” alignment=”center”][vc_text_separator title=”ISSUES AFFECTED” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_gallery type=”image_grid” images=”23817,23899,23824,23820,23826,23828,23902,23821,23908,23819,23818,23897″ onclick=”custom_link” custom_links=”https:\/\/www.saulverez.com,https:\/\/www.concellodelugo.com” img_size=”52×52″][vc_text_separator title=”SUITABLE FOR COMBINING WITH OTHER SOLUTIONS” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_gallery type=”image_grid” images=”25568,25569″ onclick=”custom_link” img_size=”150×55″ custom_links=”http:\/\/www.lugobiodinamico.eu\/catalogo\/en\/proyectos\/ub01-density-type-of-building\/,http:\/\/www.lugobiodinamico.eu\/catalogo\/en\/proyectos\/ub02-orientation-of-buildings\/,”][vc_text_separator title=”MEASURING ELEMENTS” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]Indicator<\/strong>
\nEnergy self-sufficiency
\nUnit<\/strong>
\nAUe (%)<\/p>\n
\n50%
\nDesirable goal<\/strong>
\n90%<\/p>\n
\nEnergy self-sufficiency (%) =A \/ B
\nA: Production of renewable energies
\nB: Energy consumption[\/vc_column_text][vc_text_separator title=”planning level” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]Master Plan
\nDevelopment Plan
\nBuilding construction project
\nUrban planning[\/vc_column_text][vc_text_separator title=”AGENTS INVOLVED” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]Planning Design team
\nCouncil arquitect
\nReal estate developers[\/vc_column_text][vc_text_separator title=”Possible actions promoted by the administration” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]\u2022 Financial bonuses to favour their implementation
\n\u2022 Amendment of regulations to authorise these systems[\/vc_column_text][vc_text_separator title=”What should we consider for its implementation?” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]\u2022 Pressure losses if ductwork is not properly isolated
\n\u2022 Planned maintenance management
\n\u2022 Perfectible design: planning in such a way as to enable subsequent network improvements such as system support through new renewable energy generation systems such as photovoltaics.[\/vc_column_text][vc_text_separator title=”EXAMPLES” color=”custom” style=”dotted” border_width=”2″ accent_color=”#fae699″][vc_column_text]Lugo <\/a><\/p>\n<\/a><\/p>\n