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Hvordan kan vi utnytte batterier og fleksibelt forbruk på best mulig måte for områder som en helhet? Hvordan kan fleksibelt forbruk tillate utbygging av ladeinfrastruktur til elbiler med minst mulig nettutvidelse?...

A heat pump unit using CO₂ as working fluid is designed to meet not only a part of the heating demand in the centralised kitchen at The Akshaya Patra Foundation, Bengaluru, India, but also the entire cooling demand to replace the existing HCFC units for AC. The proposed heat pump system generates...

Utilisation of natural working fluids based on hydrocarbons can reduce greenhouse gas emissions considerably. However, components and systems need to be developed further to fully exploit their thermophysical properties. A new heat exchanger test rig is under construction at SINTEF Energy Research...

As a natural refrigerant, carbon dioxide is safe, economic and environmentally sustainable and can be successfully utilized in heat pump and refrigeration systems operating according to transcritical cycles. This paper describes the development of a CO₂ air/water reversible heat pump, specifically...

The Zero Emission Building (ZEB) lab in Trondheim (Norway), owned by SINTEF and NTNU, provides a structure to develop and test innovative solutions in a living laboratory. An innovative latent heat storage (LHS) unit using biowax as phase change material (PCM) has been integrated in the central...

This article proposes a solar water heater system induced by natural convective flow using supercritical CO₂ as a working fluid. The proposed solar water heater can produce thermal energy as hot water from solar thermal energy without any electric power consumption. In order to investigate the...