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Analisis eksergi pengering tipe bak untuk pengeringan simplisia herbal Hendri Syah
AGROINTEK Vol 17, No 1 (2023)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v17i1.13438

Abstract

The drying of herb in packed bed is a complex process that involves the simultaneous heat and mass transfer between the air and product. Thermodynamic analysis particularly exergy analysis to be an essential tool for evaluates the avaiable energy at different point in a drying system and provides the useful information for redisign.The objective of this study are determined destruction exergy and eficiency exergy of packed bed dryer for herb drying. A packed bed dryer used for drying experiments. This apparatus that has been prepared with the PID temperature control system. The drying experiments were conducted at different three sample height in bed of 10 cm,20 cm, and 30 cm. Air velocity that is used varied 0.4 m/s and 0.6 m/s. The result showed air temperature in bed decreases with distence because more heat is being transfered to the herb by increasing the distance from inlet of the bed. The highest average destruction exergy was15,015 kJ/s at air velocity 0,6 m/s and sample height 30 cm. The lowest value of average exergy eficiency was 23,59% ..at air velocity 0,6 m/s and sample height  10 cm. It was concluded that exergy eficiency decreased with increasing air velocity
Assistance in agricultural waste fermentation technology in Krueng Kalee Village, Darussalam Sub-District, Aceh Besar [Pendampingan teknologi fermentasi limbah pertanian di Gampong Krueng Kalee Kecamatan Darussalam Aceh Besar] Masda Admi; A Azhari; Hendri Syah
Buletin Pengabdian Bulletin of Community Services Vol 4, No 3 (2024): Bull. Community. Serv.
Publisher : The Institute for Research and Community Services (LPPM) Universitas Syiah Kuala (USK)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/bulpen.v4i4.42666

Abstract

Agricultural waste holds significant potential as a source of animal feed and liquid organic fertilizer through the application of fermentation technology. The types of agricultural waste that can be utilized include water spinach leaves, sweet potato leaves, and spinach leaves. The utilization of these wastes not only adds value but also contributes to enhancing the economic independence of communities. Using waste as animal feed offers a sustainable alternative, especially during dry seasons and planting periods, with the potential for higher nutritional content following the fermentation process. The aim of this community service initiative is to educate the public about the types of agricultural and plantation waste that can be used as animal feed, as well as the risks to be avoided related to the effects of fermented feed. Additionally, the program involves training the community in the application of fermentation technology on rice straw, vegetable waste, and cassava leaves, utilizing microbial starters derived from the rumen of goats and cows that have adapted to cyanide toxins. The methods employed in this initiative include outreach and hands-on practice in the production of fermented feed and liquid organic fertilizer. The results indicate a high level of enthusiasm among community members regarding the dissemination of information on utilizing agricultural waste as materials for fermented feed and liquid organic fertilizer, as well as an increased awareness of the importance of environmental preservation surrounding residential and agricultural areas. In conclusion, this initiative has fostered a commitment from partners to independently implement fermentation processes, along with a hope for the continuation of further community service programs focused on the application of technology to enhance the economic conditions of farmers and livestock farmer.