{"id":16437,"date":"2021-05-28T14:45:00","date_gmt":"2021-05-28T11:45:00","guid":{"rendered":"https:\/\/www.sweco.fi\/?post_type=showroom_cpt&p=16437"},"modified":"2022-12-05T18:35:29","modified_gmt":"2022-12-05T16:35:29","slug":"laajasalo-hybrid-block","status":"publish","type":"showroom_cpt","link":"https:\/\/www.sweco.fi\/en\/projects\/laajasalo-hybrid-block\/","title":{"rendered":"Laajasalo hybrid block"},"content":{"rendered":"
\n\t
\n\t\t\"Laajasalon\t\t\t\t
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Laajasalo hybrid block<\/h1>\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t\n\t\t
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\n\t\t\t\t\tProject<\/em>\t\t\t\t\t

Laajasalo tram depot<\/p>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

\n\t\t\t\t\tCommission<\/em>\t\t\t\t\t

HVACEA, sprinkler and energy engineering and structural engineering<\/p>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

\n\t\t\t\t\tYears of implementation<\/em>\t\t\t\t\t

2018\u20132022<\/p>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

\n\t\t\t\t\tClient<\/em>\t\t\t\t\t

Helsinki City Transport (HKL) <\/p>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

\n\t\t\t\t\tSize<\/em>\t\t\t\t\t

23,637 m2 gross area and 18,395 m2 gross floor area<\/p>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\n<\/section>\n\n\n\n\n

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Waste heat generated by a tram depot to be recycled in the new Laajasalo hybrid block<\/h2>\n

Sweco is participating in the development of Laajasalo with a large team of experts. Sweco railway engineers are contributing to the construction of a tram connection in the Crown Bridges project, while the company\u2019s building services engineering and structural engineering experts are designing energy-efficient solutions for the new hybrid block\u2019s tram depot. Everything is being steered by Helsinki\u2019s carbon neutrality objectives.<\/p>\n

Helsinki City Transport (HKL) wanted to integrate energy assessments into the new tram depot\u2019s HVACE engineering from the very beginning.<\/p>\n

\u201cThe City strategy requires us to systematically monitor the environmental impacts of projects,\u201d says HKL Project Manager\u00a0Leena M\u00e4t\u00e4sniemi<\/strong>. \u201cFrom the perspective of the environment, promoting the best options means improving the energy efficiency of both transports and buildings.\u201d<\/p>\n

With this in mind, Laajasalo features many solutions that will enable people to lead more sustainable lives. The area combines functional public transport connections with urban living close to nature, and the new bridges and city bike stations make Laajasalo highly accessible by bike as well. The heart of the hybrid block is the tram depot.<\/p>\n

\u201cThis type of hybrid project sets many demands for all engineers, but cooperation and coordination is made easier by the fact that so many of the experts involved are provided by the same company,\u201d states M\u00e4t\u00e4sniemi. Sweco is providing both structural and HVACE engineers for the design of the depot.<\/p>\n

\u201cCooperation has been the keyword from the very beginning, both internally and between different operators,\u201d says Lifecycle Design Project Manager\u00a0Niina Laasonen<\/strong>\u00a0from Sweco. \u201cEven the hybrid project\u2019s energy solutions are being developed in collaboration with HKL, Anttinen Oiva Architects and the energy company Helen.\u201d<\/p>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n\n\n

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Energy recycling cuts emissions and energy consumption in half<\/h4>\n

Assessing the tram depot\u2019s energy consumption was a challenging task for engineers since the planning of the hybrid block is still in its early stages. The area plan is expected to be completed in 2022, and the construction of the depot will be complete in approximately 2026.<\/p>\n

\u201cThere are still a lot of variables, but it was important to prepare a target energy calculation as early as possible to support planning,\u201d says Laasonen. To this end, energy experts had to consider things like the depot\u2019s energy flows and heating and cooling solutions.<\/p>\n\t\t\t\t\t<\/div>\n\n

\n\t\t\t\"Laajasalon <\/div>\n <\/div>\n<\/section>\n\n
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\u201cFor example, the depot hall\u2019s tramway electricity transformers and ventilation system generate large amounts of waste heat,\u201d Laasonen states. According to calculations, the depot generates more waste heat than it can utilise by itself. \u201cWith heat pump technology, the energy could be recycled for the benefit of not only the depot but the apartment buildings to be constructed in the area as well.\u201d<\/p>\n

The heating of buildings is one of the largest sources of global carbon dioxide emissions, and In Finland, heating accounts for approximately 30% of the country\u2019s total emissions. Recycling the\u00a0tram depot\u2019s waste heat results in greater savings than could be achieved by improving insulation, for example. What\u2019s more, recycling waste heat also reduces emissions, energy consumption and operating costs.<\/p>\n

\u201cCalculated business models show that recovering and recycling the depot hall\u2019s waste heat to heat nearby buildings is economically viable,\u201d Laasonen says. \u201cRecycling and selling the energy back to the district heating network would reduce the depot\u2019s CO2 emissions and energy consumption by 50% compared to the depot only being heated with district heating, based on current emission factors.\u201d<\/p>\n

The depot is an important precedent in heat recovery<\/h4>\n

Waste heat has traditionally been recovered from industrial properties and data centres, for example. The depot project shows that there is plenty of potential elsewhere as well.<\/p>\n

\u201cIn the future, advancements such as rapidly developing heat pump technology will improve the possibilities of heat recovery in different types of properties,\u201d Laasonen says.<\/p>\n

For HKL, the energy solutions of the Laajasalo depot are an important step towards Helsinki\u2019s goal of becoming carbon neutral by 2035. The possibility of simultaneously reducing both energy consumption and carbon dioxide emissions has convinced the energy company as well.<\/p>\n

\u201cWith Sweco\u2019s help, we are currently conducting contract negotiations with Helen on how the depot\u2019s waste energy could be supplied back to the energy company\u2019s district heating network and utilised in the residential buildings of Laajasalo. Expert help is very important to us in negotiating such major contracts,\u201d M\u00e4t\u00e4sniemi says. The decisions on the depot\u2019s heating solutions will be made in 2020.<\/p>\n

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<\/i><\/figure>\n

\u201cFrom the perspective of the environment, promoting the best options means improving the energy efficiency of both transports and buildings.\u201d
\n– Leena M\u00e4t\u00e4sniemi, HKL<\/p><\/blockquote>\n

\n
<\/i><\/figure>\n

\u201cThis type of hybrid project sets many demands for engineers, but cooperation is made easier by the fact that so many of the experts involved are provided by the same company.\u201d
\n– Leena M\u00e4t\u00e4sniemi, HKL<\/p><\/blockquote>\n

 <\/p>\n

Picture: Anttinen Oiva Arkkitehdit Oy<\/span><\/p>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Sweco is participating in the development of Laajasalo with a large team of experts. Sweco railway engineers are contributing to the construction of a tram connection in the Crown Bridges project, while the company\u2019s building services engineering and structural engineering experts are designing energy-efficient solutions for the new hybrid block\u2019s tram depot. Everything is being steered by Helsinki\u2019s carbon neutrality objectives.<\/p>\n","protected":false},"featured_media":9600,"template":"","showroom_cats":[155,162,163,152,166,165],"showroom_expertise":[],"showroom_partners":[],"showroom_location":[],"showroom_client":[],"class_list":["post-16437","showroom_cpt","type-showroom_cpt","status-publish","has-post-thumbnail","hentry","showroom_cats-rail-and-tram","showroom_cats-energy","showroom_cats-buildings-and-urban-areas","showroom_cats-infrastructure-and-transportation","showroom_cats-urban-areas","showroom_cats-sustainability-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/showroom_cpt\/16437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/showroom_cpt"}],"about":[{"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/types\/showroom_cpt"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/media\/9600"}],"wp:attachment":[{"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/media?parent=16437"}],"wp:term":[{"taxonomy":"showroom_cats","embeddable":true,"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/showroom_cats?post=16437"},{"taxonomy":"showroom_expertise","embeddable":true,"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/showroom_expertise?post=16437"},{"taxonomy":"showroom_partners","embeddable":true,"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/showroom_partners?post=16437"},{"taxonomy":"showroom_location","embeddable":true,"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/showroom_location?post=16437"},{"taxonomy":"showroom_client","embeddable":true,"href":"https:\/\/www.sweco.fi\/en\/wp-json\/wp\/v2\/showroom_client?post=16437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}