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Newsletter May 2019
Division of Applied Thermodynamics and Refrigeration
Department of Energy Technology
SCHOOL OF INDUSTRIAL ENGINEERING AND MANAGEMENT
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Dear reader, we are now ready to share with you the recent news that has accumulated over the past time. Enjoy your reading!
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Breakfast webinar – Secondary fluids - from research to practice!
Secondary fluids (coolants, heat transfer fluids) in refrigeration and heat pump systems often end up in the shadow of constant discussion about the refrigerants. What is the significance of the secondary fluids for the efficiency of a system? What do you need to think about when it comes to e.g. indirect system conversion? But above all, what secondary fluids will we see in the future refrigeration and heat pump system? Monika Ignatowicz, PhD student and specialist in the secondary fluid area at KTH Energy Technology Dept. did a live-sent breakfast webinar in Swedish to answer all these questions and you are welcome to watch on Swedish Cooling ad Heat Pump Association (Svenska Kyl & Värmepumpföreningen, SKVP) website or clicking the image above
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KTH – SJTU international collaboration continues in Shanghai
Thanks to the STINT – NSFC funding, as well as KTH – SJTU seed funding, during April 9-11th, KTH Professor Björn Palm led his research team visit China Refrigeration Exhibition and Shanghai Jiao Tong University in Shanghai, China. The team was invited to give speeches in symposiums in the EXPO and give lectures in SJTU to disseminate their research works in refrigeration, heat pump systems as well as sustainable development.
This year, under the support of STINT – NSFC funding, KTH – SJTU collaboration has developed beyond academic circle. Industrial partners such as Swedish heat pump company Termoekonomi and major Chinese refrigeration manufacturer Gree Electrics has joined many of the activies.
Professor Ruzhu Wang from SJTU hosted the activities. Other delegates from KTH include Associate Professor Hatef Madani, Assistant Professor Justin Chiu, Phd student Chang Su and Tianhao Xu. CEO of Termoekonomi Mr. Henrik Enström was also invited to give a speech in the EXPO.
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Service layer design for pro-environmental behavior in the built environment with the focus on the resources efficiency: KTH Live-in-Lab case study
New project aims to reduce energy and water use by 15% and waste by 20% and also increase user experience and satisfaction.
By connecting the Sustainable Building operation with the end-users needs through a residential service layer, which is a middle layer between the building and end-user, we systematically increase of the users’ motivation to behave more environmentally friendly.
The project has 4 work packages. During WP1 the theoretical and metrical frameworks for the proposed residential service layer is defined. During WP2 users profiles and service concept are designed. WP3 goes deeper into the service-oriented architecture and system integration. In WP4, residential service layer evaluation, correction, and automation for the future scale up.
The prototype will be designed and tested at KTH Live-in-Labs fully equipped testbed for smart buildings R&D with the actual users living there and build on the existing IoT Platform - designed by Schneider Electric.
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Recent scientific publications:
Duarte WM, Paulino TF, Pabon JJG, Sawalha S, Machado L. Refrigerants selection for a direct expansion solar assisted heat pump for domestic hot water. Solar Energy. 2019 May 15;184:527–38.
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Thank you for reading our newsletter!
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