A data-driven approach is utilized to model a chiller plant that has four chillers, four cooling towers, and two chilled water storage tanks. The chillers have varying energy efficiency. Since the chiller plant model derived from data-driven approach is nonlinear and non-convex, it is not practical to solve it by using the traditional gradient-based optimization algorithm. A two-level intellige...

This thesis investigates the problem of regulating the temperature of a conditioned space using a Solar Assisted Air Conditioning Systems (SAACS) prototype located at Cabo Rojo, Puerto Rico. The SAACS Prototype consists of a 66 flat plate solar collector array with 115.4 m 2 of selective surface area, a 35 kW single-effect lithium-bromide absorption chiller, a 84 kW cooling tower, a 50 kW auxil...

The building sector accounts for more than 70% of thetotal electricity use. Chillers consume 50% electrical energyduring seasonal periods With the growth sectorand climate change, it's essential to develop energy-efficient HVAC systemsthat optimize ever-increasing energy demand. This study aims anenergy consumption prediction model air-cooled chillers using machinelearning algorithms. is done b...

AIM OF THE STUDY To evaluate a novel esophageal heat transfer device for use in inducing, maintaining, and reversing hypothermia. We hypothesized that this device could successfully induce, maintain (within a 1 °C range of goal temperature), and reverse, mild therapeutic hypothermia in a large animal model over a 30-h treatment protocol. METHODS Five female Yorkshire swine, weighing a mean of...

this study was conducted to determine the prevalence of salmonellae contamination of chicken carcasses in slaughterhouses in central iran (yazd province). 435 samples were obtained from liver, breast— before and after chilling—and bacteriological and serological examinations were done. the results showed that the rate of contamination of liver, breast meat—before and after chiller—were 8.1, 18....

The cooling applied during the firming and brining processes represents an important production step in mozzarella cheese making. temperature fluctuations of water can negatively affect hygiene, composition, quality mozzarella. Some sustainable systems minimize this problem by using hot process fluids as heat sources to generate refrigerated energy. This study aimed evaluate effects a new syste...