Ice slurry is applied in different refrigeration and air conditioning systems, and among its main advantages is the ability to store latent heat and be pumpable as chilled water. This fluid can be used for thermal storage instead of chilled water or solid ice because, at certain concentrations, it can be pumped through heat exchangers. For this technology to be widely used, the equipment must be designed with the heat exchange characteristics in mind. In this study, an experimental system was developed to study the parameters that influence heat exchange, using ice slurry in a plate heat exchanger and water as heat load. Several situations with different flow rates and initial fractions of ice in the ice slurry were analyzed. The inlet conditions of the heat load were kept constant, the temperature, pressure drop and flow rate of the ice slurry in the heat exchanger were controlled as a ...

Arequipa es una ciudad con más de 70000 Sistemas de Calentamiento de Agua con Energía Solar (SCAES), existen más de 30 fabricantes de termas solares que no tienen laboratorios propios para poder determinar las características térmicas y la eficiencia. Se instaló un banco de pruebas para evaluar la eficiencia de los colectores solares de placa plana, bajo la norma técnica peruana NTP 399.400 2001. Tres colectores utilizados son de 2m2 sirvieron para determinar el rango de valores de eficiencias máximas como del coeficiente global de pérdidas del sistema SCAES. Valores no determinados anteriormente con un módulo estandarizado.

Arequipa is a peruvian south city with more than 70000 Solar Energy Water Heating Systems (know in spanish as SCAES). In this area there are more than 30 solar thermal manufacturers. They do not have laboratories to collet  standarized data about  characteristics and efficiency of their SCAES. In this research, a group of test was installed to evaluate the efficiency of three flat plat solar collectors (2m2). This study was made under the Peruvian technical standard NTP 399.400 2001. As result, the range of maximum efficiency values and the global coefficient of losses of the SCAES was found.

Arequipa is a peruvian south city with more than 70000 Solar Energy Water Heating Systems (know in spanish as SCAES). In this area there are more than 30 solar thermal manufacturers. They do not have laboratories to collet  standarized data about  characteristics and efficiency of their SCAES. In this research, a group of test was installed to evaluate the efficiency of three flat plat solar collectors (2m2). This study was made under the Peruvian technical standard NTP 399.400 2001. As result, the range of maximum efficiency values and the global coefficient of losses of the SCAES was found.