Abstract
This is an exploratory research aimed at examining the use of hot spring as a renewable energy source to replace conventional electrical energy for suitable agricultural process in the Los BaAˆos area, Laguna, Philippines. Here, a potential site was selected by analyzing data of the temperature, relative humidity and hot spring temperature. Preliminary results revealed that average air temperature, relative humidity and hot spring temperature were 26.82°C, 87.48% and 41.49°C respectively. The standard deviation of the hot spring temperature was 0.021°C and analysis revealed that the ambient condition had no effect on the temperature of the hot spring. A prototype water hyacinth dryer was designed from locally available materials using the hot spring as a heat source. The dryer was tested at two settings (closed lid and partially opened lid). Results revealed the average temperature above and below the drying mesh and rate of moisture reduction with closed lid and partially opened lid were 33.30°C, 36.54°C and 16.8 g per hour; 32.47 and 30.56°C and 4.33 g per hour respectively. However, the color of the dried product is unacceptable. The hot spring incubator for balut revealed that average, maximum and minimum temperature was 39.995, 40.5 and 39.38EsC, respectively at opened setting of 45° waste valve. However, the hot spring incubator can be developed for incubating duck eggs which will reduce the operational cost of balut producers in Los BaAˆos, Laguna, Philippines. Key words: Hot spring, water hyacinth, drying, incubating, duck eggs.
Highlights
Los Banos City is located between the northern part of Mt
Since Los Baňos is among the three large producers of duck eggs in Laguna, emergent of weaving water hyacinth and recognized for the availability of hot spring, it is deemed necessary to explore an alternative means of utilizing the hot spring for agricultural processes using the hot spring as heat source for drying or incubation
This study focuses on the exploration of alternative use of hot spring for agricultural processes instead of using hot spring for resorts which are high consumers of water
Summary
Los Banos City is located between the northern part of Mt. Makiling and north shore of Laguna de Bay. In the province of Laguna, large scale duck egg production is located in the municipalities of Los Baños and Victoria due to its proximity to the Laguna de Bay (Atienza el al., 2015). Another emergent industry in Los Baňos is the manufacturing process of these handicrafts which involves drying of water hyacinth before weaving. Since Los Baňos is among the three large producers of duck eggs in Laguna, emergent of weaving water hyacinth and recognized for the availability of hot spring, it is deemed necessary to explore an alternative means of utilizing the hot spring for agricultural processes using the hot spring as heat source for drying or incubation. This study focuses on the exploration of alternative use of hot spring for agricultural processes instead of using hot spring for resorts which are high consumers of water
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