The current study was conducted to investigate the optimum stunning voltage and chilling regime with emphasis on reduction in pale, soft and exudative (PSE) pork. The experiments were conducted at seven Korean major pig abattoirs using a total of 91,082 industrial population. Frequencies of PSE meat was found to be significantly (p<0.05) increased as stunning voltage was elevated from 220-240 (...

In this study, enhancements of thermal conductivities of ethylene glycol, water, and synthetic engine oil in the presence of copper (Cu), copper oxide (CuO), and multi-walled carbon nanotube (MWNT) are investigated using both physical mixing method (two-step method) and chemical reduction method (one-step method). The chemical reduction method is, however, used only for nanofluid containing Cu ...

Compared to a photovoltaic array, photovoltaic/thermal concentrator module can produce thermal power for various productions in downstream cycles addition electrical energy. In this study, the system combined production of electricity, heat and cooling based on has been evaluated. triple system, lithium bromide-water absorption chiller with capacity 5 kW was used. organic Rankine generation cyc...

In the context of indoor building temperature regulation, a controller calculates the inputs for the HVAC system that result in appropriate thermal comfort conditions. Additionally, if electricity prices are time dependent, these control actions will also impact economic expenditures. To improve economic performance, Thermal Energy Storage (TES) is typically used in conjunction with HVAC to tim...

In an energy hub, each energy carrier can be converted to other forms of energy to meet electricity, heating and cooling power demand in an optimal manner. In this study, a framework is presented to optimally design and size interconnected energy hubs. It considers physical constraints on natural gas and electricity networks and environmental issues. The proposed design methodology decides on w...

In the design and operation of cold storage systems, the problems of saving operation cost and improving global economics of whole systems are equally important. Based on optimal control, yearly dynamic cooling loads and payback period, a method to design an optimal scheme is proposed. An approach to calculate and choose the chiller and cold storage tank for the optimal scheme is provided in th...

Using a computer simulation this paper presents a few selection implications when the condensing unit of an existing R22 water-cooled chiller is to be replaced by a new unit that is originally sized for a different refrigerant. The selection of a new unit is assumed to be based purely on the information available in typical product catalogues. The performance of the upgraded (or retrofitted) sy...