The arrival of new technologies has increased the energy demand day by day and does not seem to slow down at any time soon. High energy demand is adding risk on energy depletion and cause of various environmental issues. Air conditioner, chiller, and refrigerator occupy a considerable amount of the world’s total energy usage and have also proved to be a massive contributor to various environmental impacts. This technology might sound like a luxury on the surface, but they are in high demand to achieve food security. They can also help lifesaving vaccines to reach even the isolated parts of the world. Even though solar thermal refrigeration is a popular field, this paper solely concentrates on PV integrated refrigeration. In this paper, a renewable integration technology where a solar photovoltaic system is used to supply the electrical energy required to drive an absorption cycle is studied and compared with the commercial AC absorption refrigeration system. The Coefficient of Performance (COP) of the AC and DC system was 0.18 and 0.14. The simple payback of the system is 10.2 years.
India is one of the largest contributors to the world?s agricultural
products. The majority of people?s livelihood in India depends on
agriculture and its allied sectors. According to an economics survey in the
agricultural year of 2019-2020, India is estimated to have produced around
292 million tonnes of food grain. The share of agriculture in India?s GDP is
19.9%. Even though India is an active participant in global agricultural
trade, the total agricultural product export is only 2.5%. Agricultural
produce is easily perishable and the quality gets affected which will then
affect their market value. To meet the future food demands, agricultural
produce must be able to store for a longer amount of time for round the year
availability. The traditional food storage practices cannot satisfy that
condition. These perishables need a proper cold supply chain to increase the
shelf life. In this paper performance of a Parabolic Trough Collector
Integrated Vapor Absorption Refrigeration system was developed and studied.
Renewable integrated cold storage would open door to the sustainable energy
future.
The present study investigates the performance of solar photovoltaic integrated thermoelectric cooler (TEC) using MATLAB Simulink. The enhancement of efficiency has been achieved using an effective heat removal mechanism from the hot side heat sink. Since the hot side temperature is a crucial parameter. The intrinsic material properties like Seebeck coefficient (?), Thermal Conductance (K) and Electrical resistance (R) of the thermoelectric module are carefully estimated using analytical method and reported. The MATLAB Simulink Peltier module is developed based on the estimated intrinsic properties. The effect of system Voltage (V) and Current (A) on the thermal parameters like cooling capacity (QC) and Coefficient of performance (COP) has been investigated. The simulation study is validated by conducting a series of experimental analysis. The experimental model is equipped with a 100 Wp polycrystalline solar photovoltaic module to integrate and power the 12V/5 A of the 60-Watt thermoelectric cooler. Moreover, the results reveal that there is a significant effect of ambient and hot side temperature on the thermoelectric cooler performance. The fin-type conductive mode of heat transfer mechanism is adopted along with the convective forced air-cooling system to achieve effective heat removal from the hot side. The infrared thermographic investigation is carried out for ascertaining effective heat removal.
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