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Found 2 essays matching the above criteria.

1. 1. Frosting and Defrosting on Air Source Heat Pump Evaporators

   University essay from KTH/Energiteknik

   Author : Camilla Sandström; [2021]
   Keywords : ;

   Abstract : Air source heat pumps has become increasingly popular for residential households as they are considered an energy efficient alternative on the heating market. The air source heat pumps use the outdoor air as heat source and can operate in cold climates around -15 to -20°C, but as the temperatures drops below 6°C the heat pump experiences problems with frost accumulating on the heat exchanger. READ MORE

3. 2. A comparison study of PV and battery technologies for EWB off-grid electrification projects in Sub-Saharan Africa

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Felix Vedin; Camilla Sandström; [2018]
   Keywords : PV; Photovoltaic; Solar cells; Solar panels; Batteries; Africa; Sub-Sahara; Mikronät; Comparison; Case study; Simulation; Manual; EWB; Engineers without borders; Solceller; Solpaneler; Batterier; Afrika; Sub-Sahara; Mikronät; Jämförelse; Simulation; Manual; Ingenjörer utan gränser;

   Abstract : Only 10 % of the rural population in Sub-Saharan Africa has access to electricity. At the same time the Sub-Saharan countries are close to the equator and get many sun hours a day, leading to a huge potential for solar energy. READ MORE