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Showing result 1 - 5 of 9 essays matching the above criteria.

1. 1. Dynamic Modeling of Heat Power System : Modeling of a Heat Power System Using Physical and Data-driven Methods and Investigation of a Moving Boundary Method

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Albin Gustafsson; [2023]
   Keywords : System identification; Dynamic modeling; Organic Rankine cycle; Moving boundary; Thermodynamics.; System identifikation; Dynamisk modellering; Organisk Rankinecykel; Rörliga randvillkor; Termodynamik.;

   Abstract : Our society is becoming more and more electrified every day. However, a significant portion of the world’s electricity generation relies on the combustion of fossil fuels to produce heat, which is subsequently harnessed to generate electricity. One way of generating electricity from heat is by utilizing a Rankine cycle. READ MORE

3. 2. Optimizing Energy System in a Supermarket : A case study analysis

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

   Author : Filip Josefsson; [2022]
   Keywords : R744; heat recovery; refrigeration system; supermarket; optimization; water-cooled condenser gas cooler; R744; värmeåtervinning; kylsystem; livsmedelsbutik; optimering; vattenkyld kondensor gaskylare;

   Abstract : With more restrictions regarding the use of refrigerants with high GWP-values, refrigeration systems that uses R744 (Carbon dioxide) as a refrigerant increases. Supermarkets are energy intense facilities where the refrigeration system utilize a significant part of the total utilized energy. READ MORE

4. 3. Review and Design Adaptations of a SrCl2-NH3 bench-scale Thermochemical Heat Storage system

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

   Author : Hjörtur Brynjarsson; [2021]
   Keywords : Thermochemical heat storage TCS ; SrCl2-NH3; system design; kinetics; absorption; desorption; octaammine; diammine; monoammine; pressure management; commissioning; Termokemisk värmelagring TCS ; SrCl2-NH3; systemdesign; kinetik; absorption; desorption; oktaammin; diammin; monoammin; tryckhantering; driftsättning;

   Abstract : Thermochemical heat storage (TCS) is a thermal energy storage (TES) technology used to store thermal energy for later use. TCS can provide heating or cooling services from intermittently available thermal energy, often low grade waste heat. READ MORE

5. 4. Improvements to Thermal Management System for Automotive Components

   University essay from KTH/Energiteknik

   Author : Tommy Enefalk; [2018]
   Keywords : Cooling; thermal management; energy efficiency; vehicle; automotive; Kylsystem; kylning; värmehantering; energieffektivisering; fordon;

   Abstract : Global warming imposes great challenges, and anthropogenic greenhouse gas emissions have to be reduced by active measures. The transportation sector is one of the key sectors where significant reductions are desired. Within a vehicle, the cooling/thermal management system is a subsystem intended for temperature control of automotive components. READ MORE

6. 5. Air conditioning system modeling for car fuel economy simulation

   University essay from KTH/Energiteknik

   Author : Arturo Alejandro Torres Arevalo; Changhao Han; [2018]
   Keywords : ;

   Abstract : The automotive air conditioning system is the greatest auxiliary load of a vehicle, having a considerable impact on its fuel consumption and CO2 emissions. For this reason, forecasting the influence that this sys-tem has on the fuel economy of a car is desired. READ MORE