Essays about: "Heat pumps"

Showing result 31 - 35 of 175 essays containing the words Heat pumps.

1. 31. Performance Analysis of CO2 Heat Pumps in Different Applications

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Jaykumar Thanggavelu; [2022]
   Keywords : CO2 Heat pump; COP; District heating; commercial buildings; residential buildings; field measurement data; Propane; Ammonia; R-134a; CO2 Värmepump; COP; Fjärrvärme; kommersiella byggnader; bostadshus; fältmätningsdata; Propan; Ammoniak; R-134a;

   Abstract : This study focuses on researching the performance of CO2 heat pumps in different real-time applications and in some studies, it compares the performance to synthetic and other natural refrigerants based on heat pump data provided from buildings. The research on the performance of the CO2 heat pump is performed based on Sweden's climatic conditions. READ MORE

3. 32. Performance of ground source heat pumps in densely populated areas

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Linus Eriksson; [2022]
   Keywords : ;

   Abstract : Globala CO2-utsläpp stiger. För att begränsa klimatförändringarna måste energisektorn effektiviseras. Ett intresseområde är uppvärmning av lokaler och vatten i bostadshus. En lösning är att använda bergvärmepumpar. READ MORE

4. 33. Alternative Energy Storage Solutions and Future Scenarios of the Austerland Energy System

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Jennie Lindblom; [2022]
   Keywords : Gotland; Östergarnslandet; Polygeneration system; Homer Pro; Solar PV; Wind power; Energy storage; Battery; Hydrogen; Flywheel; Redox Flow battery; Pumped Hydro; Sustainable development.; Gotland; Östergarnslandet; Poly-genererings system; Homer Pro; Solceller; Vindkraft; Energilagring; Batterier; Vätgas; Svänghjul; Redox Flödesbatteri; Pumpkraftverket; Hållbar utveckling.;

   Abstract : The project Austerland Energi at the eastern tip of the island of Gotland called Östergarnslandet was started as a response to the larger project Omställning Gotland funded by the Swedish government as an effort for a pilot project to convert to renewable energy to reach zero CO2-emissions for the country in 2045. The current plan for the Austerland energy system is a solar PV and wind production base with energy storage in the form of batteries and hydrogen which also can be used as vehicle fuel. READ MORE

5. 34. Functional Modelling and Simulation of the Off-Design Operation of a Cryogenic Engine

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Brice Metzinger; [2022]
   Keywords : ;

   Abstract : The Exploration Company is a French and German start-up that develops and operates Nyx, an orbital vehicle that also has a lunar version. This thesis focuses on the modeling and simulation of the off-design operation of the cryogenic engine of Nyx. READ MORE

6. 35. Energy Usage in Railway Wayside Object Heating : Modeling of melting of Ice, Estimation of heating power requirement in Switch and Renewable energy feasibility for a Railway system

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Sidharth Kapoor; [2022]
   Keywords : Melting of Ice; Numerical modeling; Transient conjugate heat transfer; Transient analysis; CFD; Switch heating; Heat pumps in Railways; Issmältning; Numerisk modellering; Transient värmeöverföring; Transientanalys; CFD; Värmepumpar i järnvägar;

   Abstract : Trafikverket operates about 12000 Switches and crossings (SnCs) of which 6800 are equipped with an electrical heating system of 10−30kW power to keep SnCs functional throughout the winters by keeping them free of Snow/Ice. The energy consumption is approximately 200−130GWh/year costing approximately 10−15 million Euros annually. READ MORE