Effect of Waste Heat Recovery on Drying Characteristics of Sliced Ginger in a Natural Convection Dryer

Pati, Jnyana Ranjan; Hotta, Santosh Kumar; Mahanta, Pinakeswar

doi:10.1016/j.proeng.2015.05.050

Cited by 5 publications

(5 citation statements)

References 4 publications

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“…Analysis of wettability, water absorption index, solubility index, bulk density and organoleptic properties demonstrated the superiority of hybrid dried samples. Besides, Pati et al [80] demonstrated that the organoleptic analysis of herbal mint used in their study had good colour, odour and taste. Simultaneously, recovered heat from biomass proved to be a good source of thermal energy for drying.…”

Section: Effect Of Different Drying Methods On Quality Of Agriculture Productsmentioning

confidence: 94%

“…Some selected works are presented in Table 5 which aim to summarize the effect of drying technologies on qualities of crops. [80] are within the quality standard of pharmaceutical industries.…”

Section: Effect Of Different Drying Methods On Quality Of Agriculture Productsmentioning

confidence: 99%

“…Due to good properties of paraffin such as high safety and reliability, low cost and non-corrosive, it is still taking a leading role in RET drying for agriculture products. Some representative examples are further illustrated as follows: Pati et al [80] studied usage of paraffin wax as TES material for the drying of ginger slices. As presented in Fig.…”

Section: Phase Change Materials Used For Food Dryingmentioning

confidence: 99%

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Recent advances in sustainable drying of agricultural produce: A review

et al. 2019

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Quests for sustainability, food security and need to decouple food prices from fluctuating prices of finite fossil fuels are the drivers to sustainable processing and storage of agricultural products.Farming predominantly takes place in rural areas where conventional energy technologies may either be expensive or sometimes technically infeasible to be obtained. This necessitates deployments of renewable energy technologies to remote areas for sustainable power generation, cooling and drying of agricultural product. Renewable systems e.g. solar dryers, solar hybrid dryers, combined power and drying system take leading roles in sustainable drying of farm produce. A number of research studies have been carried out in the past one decade, which mainly concentrate on modelling, simulation and experiment of different sustainable drying techniques. Therefore, this paper mainly aims to present a state of the art review on the contributions of combined power and drying, application of phase change materials and hybrid drying systems with regard to agricultural products. Based on this comprehensive summarization, it is indicated that deployment of biomass powered combined heat and power systems might be a good solution to post-harvest wastes since both electricity and heat for drying of agricultural products can be simultaneously obtained.

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Section: Effect Of Different Drying Methods On Quality Of Agriculture Productsmentioning

confidence: 94%

Section: Effect Of Different Drying Methods On Quality Of Agriculture Productsmentioning

confidence: 99%

Section: Phase Change Materials Used For Food Dryingmentioning

confidence: 99%

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Recent advances in sustainable drying of agricultural produce: A review

et al. 2019

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“…The environmental effect EE related to the investment outlays incurred should be determined from Formula (23), which describes the unit costs of EE pollution reduction.…”

Section: Methodsmentioning

confidence: 99%

“…This option as the most financially and environmentally effective should be recommended to the investor. In order to analyze the environmental effect related to the incurred financial expenses, the unit costs of reduction of EE pollutants as a result of using waste heat as a source of heat energy were calculated based on Formula (23). The results of the calculations are presented in Figures 10 and 11.…”

Section: Variant IIImentioning

confidence: 99%

An Analysis of Waste Heat Recovery from Wastewater on Livestock and Agriculture Farms

2020

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Agriculture is one of the sectors of the economy in which it is possible to conduct much more rational energy economy. The easiest way to achieve financial savings as well as reduce air pollution is to use waste heat sources. Heat pumps are perfect for this. Particularly favorable is the case when the device can operate in an alternative system and serve both heating and cooling purposes. The purpose of this article was to present possible solutions for installations enabling heat recovery from wastewater to supply agri-breeding farms with hot utility and technological water, a financial analysis of their application, and an assessment of the impact of these solutions on possible reduction of pollutant emissions. The tests were carried out for four variants of cooperation between a heat pump and an exchanger. In the first variant, waste heat was used in the process of heating water used to clean stands and prepare feed. In the second variant, waste heat took part in heating the water used for watering plants. In the third variant, waste heat was used in the process of drying cereals. In turn, in the last variant, waste heat supported the preparation of utility hot water for the breeder’s residential building. The study showed the legitimacy of using thermal energy from liquid manure as a waste heat source on farms and farming. This is mainly due to the short payback period, which can be within 2–4 years. In turn, the analysis of pollution reduction associated with the recovery of waste energy showed that the use of heat pumps allowed a significant reduction in the emission of harmful compounds to the atmosphere, in particular carbon dioxide. It is worth noting that livestock breeding is one of the most important branches of agricultural production not only in Poland but also throughout Europe, Asia and South and North America. For this reason, the use of waste heat-recovery systems enables real savings in the purchase of energy and reduction of pollutant emissions arising during traditional production processes.

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