Partial cooling of strawberry plants by water tube utilizing geo-thermal heat pump

Moritani, Shigeoki; Nanjo, H.; Atsushi, Itou

doi:10.37855/jah.2017.v19i03.34

Cited by 4 publications

(3 citation statements)

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“…On the other hand, some researchers have also implemented a chilling system for plantation purposes. For example, Shigeoki et al, [9] applied a commercial heat pump to cool strawberry plants via a heat exchanger in the greenhouse. However, it supports partial cooling only.…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric-Based Low-Cost Water Chiller via Peltier-Plates

Manap

Mahalingam

Rabeya

et al. 2022

ARFMTS

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This study aims to design and build a water-chilling device for strawberry irrigation in low-land areas in Malaysia. Strawberries possess better growth in a chilled environment. On that note, a chilling thermoelectric device known as the Peltier plate has been used in this project, which follows an open-cycle system. This process is cost-effective and more convenient than the other methods used for strawberry plantation, such as providing an air-conditioner, which is costly, and using a sprinkler, which may rot the strawberries in wet conditions. Therefore, we propose a low-cost chilling device to chill the water with low-temperature water to be applied in strawberry plants. The plant treated with the water chiller showed better growth with 12 cm of height. The thermoelectric effect has been adopted in this study as the source of chilling since it reduces the temperature on one side and increases it on the other side. The heat is to be discharged using two fans to increase the difference in temperature between the two sides of the thermoelectric device. It involved the Peltier effect, which generates the voltage from the power source to heat/temperature differentials. The obtained result revealed a temperature difference of 5.7 °C between the water-in (27 °C) and water-out (21.3 °C), considered the optimum temperature for strawberries to survive well.

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Section: Introductionmentioning

confidence: 99%

Thermoelectric-Based Low-Cost Water Chiller via Peltier-Plates

Manap

Mahalingam

Rabeya

et al. 2022

ARFMTS

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“…Therefore, strawberry is often harvested in winter and spring, but not in summer (Yamasaki, 2013). The greenhouse cultivation of strawberry, which provides protection from rain, pathogens and insects, and which ensures an optimal temperature environment, can be carried out throughout the year (Shigeoki et al, 2017).To produce strawberry all year round, greenhouse cultivation with an evaporative cooling system is often used for strawberry cultivation in Thailand (Pipattanawong, 2015). Like all commercially cultivated fruits, strawberries face a number of threats.…”

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Biological and molecular characterization of Lasiodiplodia theobromae causing dieback disease of strawberry in Thailand

Phetphan

Supakitthanakorn

Phuakjaiphaeo

et al. 2023

Journal of Phytopathology

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In Thailand, strawberry production is confined mainly to Chiang Mai and Chiang Rai Provinces, located in the mountainous northern region, where the cool climate from December to March permits production (Pipattanawong, 2015). Strawberry plants are highly susceptible to high temperatures due to the reduction of strawberry flower formation and fruit quality (Klamkowski & Treder, 2008). Moreover, higher temperatures generate a higher demand for water, creating water stress in plants during dry seasons (Moretti et al., 2010). Therefore, strawberry is often harvested in winter and spring, but not in summer (Yamasaki, 2013). The greenhouse cultivation of strawberry, which provides protection from rain, pathogens and insects, and which ensures an optimal temperature environment, can be carried out throughout the year (Shigeoki et al., 2017).To produce strawberry all year round, greenhouse cultivation with an evaporative cooling system is often used for strawberry cultivation in Thailand (Pipattanawong, 2015). Like all commercially cultivated fruits, strawberries face a number of threats. Common diseases include leaf scorch, leaf spot, leaf blight, powdery mildew and anthracnose (Pipattanawong, 2015).However, strawberry plants are especially susceptible to fungal pathogens which can affect almost all parts of strawberry (Maas, 2012), and the occurrence of several fungi that infect strawberry crowns and roots has given rise to concerns that production

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