Design and developmental methodology of thermoelectric refrigeration has been explained in detail also the theoretical physical characteristics of thermoelectric cooling module used in this research work have been investigated. Authors have been designed and developed an experimental prototype of thermoelectric refrigeration system working on solar photo voltaic cells generated DC voltage. The ...

This paper studies the evaporative heat transfer characteristics of R744 at low temperatures in a horizontal smooth tube as cascade refrigeration system (CRS) among hybrid systems (HCRSs). There is lack research on low-temperature under operating conditions evaporators used actual CRSs supermarkets. Therefore, this study aims to provide basic data refrigerators The evaporation experiment conduc...

A hierarchical approach, in which a highdimensional model is decomposed into series of low-dimensional sub-models connected in cascade, has been shown to be an effective way to overcome the ’curse of dimensionality’ problem. Information propagation through a cascade hierarchy of Linguistic Decision Trees (LDTs) based on label semantics forms a process of cascade decision making. In order to exa...

This article presents the magnetic refrigeration technology that is based on magnetocaloric effect, heating or cooling of a material when applied field changes. The first part paper shows an introductory study evolution this over years, continuing with presentation regenerator model, which composed two heat exchangers parallel plates material, gadolinium and are separated by transfer agent flow...

Direct expansion (DX) refrigeration technology is almost exclusively used in multi-temperature transport refrigeration systems. Multi-temperature systems use up to three evaporators, requiring large refrigerant charges and system pressure control to operate over a wide range of set-point conditions. Despite incremental design improvements over the past decade, environmental and control issues c...

This study is an adaptation of ammonia cascade cooling systems using carbon dioxide on ice cream production machines and includes thermodynamic analysis R717/R744 refrigeration system with R717 refrigerant single-stage investigation its efficiency. As a result the analyses, COP value was 3.67, Carnot efficiency 0.57, second law 0.19 power required to operate compressor 27.55 kW. In system, 4.46...

A small refrigeration plant, for teaching refrigeration theory, used a control console built to traditional design guidelines: one output in the display for each sensor in the plant. This style of console is notorious for inducing high cognitive loads on operators and for displaying redundant data. Often the high cognitive load is the result of inconsistency between the intent for displaying th...