Showing 1 - 7 of 7
A study is presented on the influence of the air flow rate and surface geometry on the thermal-hydraulic performance of commercial tube-fin [`]no-frost' evaporators. A specially constructed wind-tunnel calorimeter was used in the experiments from which data on the overall thermal conductance,...
Persistent link: https://www.econbiz.de/10008916172
This paper outlines a simulation model for the cycling behavior of household refrigerators and, therefore, for predicting their energy consumption. The modeling methodology follows a quasi-steady approach, where the refrigeration system and also the refrigerated compartments are modeled...
Persistent link: https://www.econbiz.de/10008916454
A simplified model to assess the energy performance of vapor compression [`]on-off' controlled refrigerators is presented herein. The model consists of first-principles algebraic equations adjusted with experimental information obtained from the refrigeration system under study. The experimental...
Persistent link: https://www.econbiz.de/10008919132
A model-driven design and optimization methodology for sizing the components of refrigeration cassettes for light commercial applications (i.e., cooling capacities ranging from 0.5 to 1.5kW) is presented. Mathematical models were devised for each of the system components and their numerical...
Persistent link: https://www.econbiz.de/10011040762
In this study a novel design methodology for household refrigeration systems focused on both energy savings and cost reduction is presented and evaluated. Mathematical models were put forward for each of the system components and used to simulate the energy performance of the entire...
Persistent link: https://www.econbiz.de/10011041213
The present paper is aimed at putting forward a two-dimensional model for thermoelectric cells. The energy conservation equation was formulated in order to account for the Fourier (heat) conduction, the Thomson (thermoelectric) effect, and the Joule heating on the temperature distribution. The...
Persistent link: https://www.econbiz.de/10010906286
This paper describes a quasi-steady-state simulation model for predicting the transient behavior of a two-door household refrigerator subjected to periodic door opening and evaporator frosting. A semi-empirical steady-state model was developed for the refrigeration loop, whereas a transient...
Persistent link: https://www.econbiz.de/10011263277