Integration of desiccant wheels and high-temperature heat pumps with milk spray dryers

Chen, Qun; Cleland, Don J.; Carson, James K.; Walmsley, Timothy Gordon

doi:10.1016/j.applthermaleng.2022.119083

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…Depending on the type of industry, the heat load can vary daily, weekly, or monthly. Planning of HTHP in an industrial system can be released in several steps, starting from measuring the existing system data, and identifying the potential for waste heat recovery [16]. This can be done using pinch analysis by generating composite curves of various heating and cooling streams.…”

Section: Integration Approaches For Hthpmentioning

confidence: 99%

Techno-economic comparative analysis of solar thermal collectors and high-temperature heat pumps for industrial steam generation

Saini

Ghasemi

Arpagaus

et al. 2023

Energy Conversion and Management

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Section: Integration Approaches For Hthpmentioning

confidence: 99%

Techno-economic comparative analysis of solar thermal collectors and high-temperature heat pumps for industrial steam generation

Saini

Ghasemi

Arpagaus

et al. 2023

Energy Conversion and Management

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“…HPs are most frequently used in the residential sector and for low-temperature industrial heat processes, such as the milk pasteurization processes in the dairy industry [71]. While HTHP and VHTHP are usually used in waste heat recovery processes in the industrial or district sector, where the waste heat available is used as an energy source for the HP, being capable of reaching a COP greater than 5 with heat sink temperatures between 80 to 125 • C [28,70,72,73]. Commercially available HPs can reach temperatures up to 150 • C, experimental prototypes can reach almost 160 • C, and numerical studies have found that innovative HPs could be technical and economically able to provide temperatures up to 280 • C [29].…”

Section: Photovoltaic-assisted Heat Pumps (Pv-hp)mentioning

confidence: 99%

Hybrid System of Photovoltaic and Solar Thermal Technologies for Industrial Process Heat

et al. 2023

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Process heating is the activity with the most energy consumption in the industrial sector. Solar heating (SH) systems are a promising alternative to provide renewable thermal energy to industrial processes. However, factors such as high investment costs and area limitations in industrial facilities hinder their utilization; therefore, hybrid systems that combine two different solar thermal or photovoltaic technologies where each technology operates under conditions that allow a higher overall performance than conventional configurations have been proposed. In this review, we discuss the limitations of conventional SH systems and the potential of hybrid configurations to overcome them. First, the current literature about conventional and hybrid systems is presented. Then, the application of common performance indicators to evaluate hybrid configurations is analyzed. Finally, the limitation, advantages, and potential applications of conventional and hybrid systems are discussed. This work shows that conventional systems are the most promising alternatives in low and high-temperature industrial applications. At the same time, in medium and processes, hybrid configurations have great potential to increase the performance of SH systems and help to boost their adoption in the industrial sector. There are few studies about hybrid systems in industrial applications, and further research is required to determine their potential.

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“…The success of increasing the efficiency of the drying machine with the Spray Dryer method can be seen from the results of how much total heat energy is used to reduce the moisture content in pure liquid cow's milk and how much total energy is generated to generate heat from a heat source, namely electricity during the drying process [14]. The inlet temperature is 100℃ for the first to the third test data, 105℃ for the fourth to sixth test data, and 110℃ for the seventh to ninth test data.…”

Section: Calculation Analysismentioning

confidence: 99%

Energy Saving on Spray Drying Process by Modifying the Hot Air Flow

Setyadi

Yoga

Anggrainy

et al. 2022

J. Phys.: Conf. Ser.

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The drying machine works with the Spray Dryer method to dry particles from a liquid state through continuous spraying in the drying chamber. This Spray Dryer uses an atomizer in the form of a 0.2mm mist nozzle type injector with a spraying capacity of 0.00045 kg/s. Function for atomization during the drying process occurs with a change in the vortex angle of 35°. In this study, the liquid used was pure cow’s milk with a specific heat value of 3930 J/kg K. To increase the total amount of solids, increase the volume, speed up the drying process, and prevent material damage due to high temperatures, the milk was mixed with maltodextrin, water, and salt. In this drying process, the temperatures used are 100°C, 105°C, and 110°C. The humidity of the surrounding air can be reduced by using a dehumidifier containing a zeolite stone type molecular sieve measuring 1.7-2.5mm as an absorbent. The results of this study indicate that the moisture content of dry powdered milk products is 10.01% using a temperature of 105°C with a drying air flow speed of 16 m/sec. In addition, the drying time process was taken a time of 73 minutes which resulted in a drying rate of 0.455gram/second. This dehumidifier affects the temperature in the drying chamber to be constant between 101°C-104°C and lowers the humidity of the air by 7%, resulting in a 222gram milk soak. The efficiency value of the drying machine with a temperature of 105°C is 18.68%.

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Integration of desiccant wheels and high-temperature heat pumps with milk spray dryers

Cited by 10 publications

References 31 publications

Techno-economic comparative analysis of solar thermal collectors and high-temperature heat pumps for industrial steam generation

Techno-economic comparative analysis of solar thermal collectors and high-temperature heat pumps for industrial steam generation

Hybrid System of Photovoltaic and Solar Thermal Technologies for Industrial Process Heat

Energy Saving on Spray Drying Process by Modifying the Hot Air Flow

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