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Yuchen Ju, Pauli Hiltunen, Juha Jokisalo, Risto Kosonen and Sanna Syri
Demand response techniques can be effective at reducing heating costs for building owners. However, few studies have considered the dynamic marginal costs for district heating production and taken advantage of them for building-level demand response. In ...
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Xiaolei Yuan, Xuetao Zhou, Yumin Liang, Yiqun Pan, Risto Kosonen and Zhongping Lin
This paper proposes a decentralized cooling system combined with a traditional computer room air conditioning unit and server-level heat pipe exchangers for thermal environment optimization in a data center. Two cooling strategies, with heat exchangers i...
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Weixin Zhao, Simo Kilpeläinen, Wertti Bask, Sami Lestinen and Risto Kosonen
To maintain proper indoor air quality and increase energy efficiency, a demand-control ventilation (DCV) system has become a popular solution. This paper reports the findings of a field study conducted on the performance of the DCV systems in eight publi...
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Nilusha Jayawickrama, Risto Ojala, Jesse Pirhonen, Klaus Kivekäs and Kari Tammi
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Lihnida Stojanovska-Georgievska, Ivana Sandeva, Aleksandar Krleski, Hristina Spasevska, Margarita Ginovska, Igor Panchevski, Risto Ivanov, Ignasi Perez Arnal, Tomo Cerovsek and Tomas Funtik
The building sector nowadays has come to the stage where it needs a ?digital? renovation. This is to be accomplished by an introduction of change into the methodology of construction and using new tools and technologies, such as BIM technology. This pape...
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Eetu Heikkilä, Tero Välisalo, Risto Tiusanen, Janne Sarsama and Minna Räikkönen
Wave power is a potential technology for generating sustainable renewable energy. Several types of wave energy converters (WECs) have been proposed for this purpose. WECs operate in a harsh maritime environment that sets strict limitations on how and whe...
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Janne Hirvonen, Juha Jokisalo, Paula Sankelo, Tuomo Niemelä and Risto Kosonen
Energy retrofitting of buildings shows great potential in reducing CO2 emissions. However, most retrofitting studies only focus on a single building type. This paper shows the relative potential in six Finnish building types, to identify possible focus a...
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Davor Stjelja, Juha Jokisalo and Risto Kosonen
Climate change and technological development are pushing buildings to become more sophisticated. The installation of modern building automation systems, smart meters, and IoT devices is increasing the amount of available building operational data. The co...
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Elmo W. Wiikinkoski, Iiro Rautsola, Junhua Xu and Risto Koivula
The trivalent lanthanide-actinide separations are a major challenge in reprocessing of nuclear fuels. To achieve this, commonly organic extractants and solvents are utilized in elaborate processes. Here we report a simple new method that can perform a su...
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Brandon Perry and Risto Uuk
This essay argues that a new subfield of AI governance should be explored that examines the policy-making process and its implications for AI governance. A growing number of researchers have begun working on the question of how to mitigate the catastroph...
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