Sökning: "Plate evaporator"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Plate evaporator.

1. 1. Thermal and hydraulic performance of compact brazed plate heat exchangers operating as evaporators in domestic heat pumps

   Författare :Joachim Claesson; Björn Palm; Satish G. Kandlikar; KTH; []
   Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Applied mechanics; plate heat exchanger; evaporator; heat pump; flow boiling; pressure drop; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

   Sammanfattning : This thesis investigates the performance of compact brazed plate heat exchangers (CBE) operating as evaporator in heat pump applications. The thesis, and the performances investigated, has been divided into three main sections; One zone evaporator performance; Two zone evaporator performance; and finally Local performance. LÄS MER

3. 2. Energy Efficiency Improvements in Household Refrigeration Cooling Systems

   Författare :Erik Björk; Björn Palm; Claudio Melo; KTH; []
   Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Household refrigerator; Domestic refrigerator; Free convection; Plate evaporator; Heat transfer; Flow boiling; Isobutane; R600a; Pressure drop; Two-phase; Cooling system; Charge inventory; Cyclic losses; Thermography;

   Sammanfattning : This thesis is based on eight articles all related to the characteristics of the cooling system and plate evaporator of a household refrigerator. Through these articles, knowledge is provided that can be used to increase the operational efficiency in household refrigeration. LÄS MER

4. 3. Heat Transfer and Pressure Drop in a Plate-Type Evaporator

   Författare :Sven Wellsandt; Chalmers University of Technology; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

5. 4. Estimation of Thermal and Hydraulic Characteristics of Compact Brazed Plate Heat Exchangers

   Författare :Vijaya Sekhar Gullapalli; Institutionen för energivetenskaper; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Brazed plate heat exchangers; CFD; heat transfer; pressure drop; heat exchanger selection software; transcritical-CO2 calculations; heat exchanger rating; evaporation; condensation; refrigerant properties; discretized calculations;

   Sammanfattning : This thesis work presents various performance estimation methods of compact brazed plate heat exchangers (BPHE) operating in single phase, condenser, evaporator, cascaded and transcritical applications. Such methods play a vital role in development of heat exchanger selection software and during geometry parameter estimation in the new product development process. LÄS MER

7. 5. Flow Boiling Heat Transfer and Pressure Drop. Experiments and Model Development for Complex Geometries

   Författare :Sven Wellsandt; Chalmers University of Technology; []
   Nyckelord :pressure drop; zeotropic mixtures; heat transfer; herringbone microfin; dimple plate; modelling; evaporation; flow boiling; experiments;

   Sammanfattning : Two very different evaporator geometries, a dimple plate and a herringbone microfin tube, have been studied. Heat transfer and pressure drop for both pure refrigerants and refrigerant mixtures have been determined experimentally. LÄS MER