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Showing result 1 - 5 of 7 essays matching the above criteria.

1. 1. Optimization of Material Cost and Carbon Footprint of Flat Reinforced Concrete Slabs with Simple Steel Piles : Designed according to Eurocode and Swedish appendix EKS

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Oskar Lönn; [2023]
   Keywords : Optimization; RC slab; Material cost; API;

   Abstract : When designing reinforced concrete (RC) slabs with steel piles various variables must be considered, from the internal force to the distance of piles. An endless number of designs are possible, leaving space for optimizing designs. READ MORE

3. 2. RC Trough Bridges: A Parametric Study using FEM and an Analysis of their Current State

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : David Åkergren; [2021]
   Keywords : concrete; trough bridges; parametric study; FEM; BaTMan; ATENA; load eccentricity; compressive strength; tensile strength;

   Abstract : There are approximately 4000 railway bridges in Sweden managed by the Swedish Administration of Transport (Trafikverket), of which a common construction type is the reinforced concrete (RC) trough bridge, which is a structure that consists of a slab carried by two longitudinal main beams which transfer loads towards the supports. A substantial amount of the RC trough bridge population is approaching the end of their service lives which consequently implies that the replacement of some of these bridges can be expected in the near future. READ MORE

4. 3. Throughflow Study on Bleeding for Part Load Compressor Operation

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Simon Hedkvist; [2019]
   Keywords : Compressor; Minimum environmental load; Aerodynamic; Throughflow; Stability; Bleeding;

   Abstract : The transition of the European energy grid to renewable energy sources is increasing the demand for back-up capacity with high flexibility. Current fossil fuel plants are continuously being forced into part load operation, where they are limited by pollution regulations that dictate their minimum environmental load, MEL. READ MORE

5. 4. Towards Flexible Power Generation Short-term Optimization of a Combined Cycle Power Plant Integrated with an Inlet Air Conditioning Unit

   University essay from KTH/Energiteknik

   Author : Weimar Mantilla Gutierrez; [2019]
   Keywords : Combined cycle gas turbine; Power augmentation; Flexibility; Inlet air conditioning; Thermal energy storage; Heat pump; Mixed-integer linear programming MILP; kombikraftverk; kraftförbättring; flexibilitet; inluftsbehandling; termisk energilagring; värmepump; linjär programmering; MILP;

   Abstract : Combined cycle gas turbine power plants (CCGT), as part of the electricity generation fleet, are required to improve their flexibility to help balance the power system under new scenarios with high shares of variable renewable sources. Among the different possibilities to enhance the power plant performance, an inlet air conditioning unit offers the benefit of power augmentation and “minimum environmental load” reduction by controlling the gas turbine intake temperature using cold thermal energy storage and a heat pump. READ MORE

6. 5. Hybrid PV-Biomass Power Plant design for an Indonesian village

   University essay from KTH/Energiteknik

   Author : Chloé Prévost; [2018]
   Keywords : ;

   Abstract : This thesis work focuses on the design of a hybrid PV-Gasification-Battery plant for a remote villagelocated on an Indonesian island and currently not electrified. As the objective of the study is to assess therelevance of the hybrid plant to make use of the local resources to satisfy the demand, the village situationis analyzed, and a representative load curve is built. READ MORE