Sökning: "condenser"

Visar resultat 1 - 5 av 28 uppsatser innehållade ordet condenser.

1. 1. Experimental Analysis of Variable Capacity Heat Pump Systems equipped with a liquid-cooled frequency inverter

   Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

   Författare :Thair Ebraheem; [2013]
   Nyckelord :inverter-driven compressor; liquid-cooled inverter; variable capacity heat pump; variable speed compressor;

   Sammanfattning : Using an inverter-driven compressor in variable capacity heat pump systems has a main drawback, which is the extra loss in the inverter. The present experimental study aims to recover the inverter losses by using brine-cooled and water-cooled inverters, thereby improving the total efficiency of the heat pump system. LÄS MER

3. 2. ANALISYS AND ENERGY SAVING MEASURES OF KASTVALLEN ICE HOCKEY RINK ARENA

   Magister-uppsats, Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik; Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

   Författare :Mario Igual Bueno; Jose Enrique Bielsa Azcona; [2012]
   Nyckelord :Ice hockey; rink; energy saving measures; analysis; energy; refrigeration cycle;

   Sammanfattning : Nowadays efficiency measures are more and more important because the price of the energy is increasing every year. Moreover, saving energy it is also important for decrease the environmental impact.Kastvallen is a hockey arena built in 1997 that cools the hockey rink with electric compressors. LÄS MER

4. 3. Experimental analysis of variable capacity heat pump system equipped with vapour injection and permanent magnet motor

   Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

   Författare :Umer Khalid Awan; [2012]
   Nyckelord :heat pump; variable capacity; scroll compressor; vapour injection; permanent magnet motor; R410A;

   Sammanfattning : This study analyzes the performance of variable capacity heat pump scroll compressor which is equipped with vapour injection and permanent magnet motor. Refrigerant used in the system is R410A. The study is divided in two phases. In first phase, tests are carried out for heat pump without vapour injection. LÄS MER

5. 4. KORTSIKTIG PRODUKTIONSPLANERING I MINDRE FJÄRRVÄRMESYSTEM : En studie vid Strängnäs Energi AB

   Uppsats för yrkesexamina på avancerad nivå, Mälardalens högskola/Akademin för hållbar samhälls- och teknikutveckling

   Författare :Robin Erneby; [2012]
   Nyckelord :Renewable energy; Cogeneration; CHP; Production planning; Energy economics; Strängnäs; SEVAB; Förnybara energikällor; kraftvärme; produktionsplanering; energiekonomi; Strängnäs; SEVAB; FVB; Fjärrvärmebyrån;

   Sammanfattning : District heating covers around 80 % of the heating demand in apartment buildings and 10 % in single-family homes in Sweden. In the year 2010 the total input of energy to the Swedish district heating grids was about 70 TWh, which corresponds to 11 % of the total energy input to the whole energy system in the country. LÄS MER

7. 5. Elproduktion med ORC-teknik ombord på fartygsserien MK II.

   Kandidat-uppsats, Linnéuniversitetet/Sjöfartshögskolan, SJÖ; Linnéuniversitetet/Sjöfartshögskolan, SJÖ

   Författare :Per Lundgren; Håkan Mohlin; [2012]
   Nyckelord :ORC; spillvärme; energioptimering; Powerbox; MK II;

   Sammanfattning : Given that the oil prices have risen and the environmental regulations has become more stringent, the interest in operating efficiency has increased. The project has investigated the possibility of producing electricity from waste heat generated in the diesel process. LÄS MER