Sökning: "variable speed compressor"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden variable speed compressor.

1. 1. Optimizing Control Algorithm for Indirect Liquid ThermalManagement of Batteries : A Study Executed at Northvolt

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Mantas Petrosius; [2021]
   Nyckelord :;

   Sammanfattning : The vast expansion of intermittent sustainable energy generation has favoured a gradual adoption of lithium-ion batteries in various industrial and automotive applications. Despite its many inherent merits, this storage technology is very vulnerable to temperature variations: the performance and lifespan of LIBs are substantially influenced by their load cycles, thermal behaviours, and operating temperature range. LÄS MER

3. 2. Performance Investigation & Gas Exchange Assessment of Exhaust Piston–assisted Turbocharged Engine (EPTE) Concept : A simulation-based assessment

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Nachiketh Lingachari Acharya; Saurav Dasgupta; [2021]
   Nyckelord :;

   Sammanfattning : There is an increasing stringency in the emission legislation within the transport industry along with ambitious performance demands from the customer side. These have pushed the vehicle manufacturers and relevant component suppliers to develop and integrate a wide portfolio of engine technologies. LÄS MER

4. 3. Energioptimering av tryckluft : Genom värmeåtervinning och driftoptimeringar för industriella tillämpningar på Volvo Trucks i Umeå

   Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Författare :Johan Fjellstedt; [2019]
   Nyckelord :Tryckluft;

   Sammanfattning : Volvo Trucks in Umeå use large amounts of compressed air and the air compressors at Volvo use large amounts of energy every year. The majority of the energy supplied to the compressors goes to heat losses cooled to the Ume River and groundwater. LÄS MER

5. 4. Problem Identification for Product Development Opportunities of Wine Refrigerators

   Master-uppsats, KTH/Energiteknik

   Författare :Malin Maria Erlandsson; Petra Näsström; [2018]
   Nyckelord :;

   Sammanfattning : Both value and flavor of wines can improve with time if stored properly. The factors with the most profound effect on the wine are light, humidity, temperature, vibrations, and ventilation. Light consisting of shorter wavelengths, under 450 nm, are dangerous for wine and can destroy the structure in wine. LÄS MER

7. 5. Weather data for heat pump system control improvement: analysis of instantaneous and forecasted measurements and evaluation of potential energy savings

   Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

   Författare :Mattia Monteggia; [2018]
   Nyckelord :heat pump system control; HVAC predictive rule-based control; weather forecast; occupancy behavior; internal gain; ambient temperature; perfect prediction;

   Sammanfattning : The present work deals with a study related to the analysis of weather data for heat pump system control improvement based on both instantaneous and forecasted measurements. In particular, the analysis is firstly focused on the comparison of multiple weather sources for the assessment of weather forecast uncertainties, based on the evaluation of errors in prediction with respect to measured values. LÄS MER