Water harvesting system in greenhouses with liquid desiccant technology

Jaradat, Mustafa; Albatayneh, Aiman; Alsotary, Omar; Hammad, Raghad; Juaidi, Adel; Manzano‐Agugliaro, Francisco

doi:10.1016/j.jclepro.2023.137587

Cited by 9 publications

(2 citation statements)

References 43 publications

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“…Unlike conventional insulation materials, BioPCMs do not generate emissions during manufacturing. To assess the energy-related environmental impact, the greenhouse gas (GHG) emissions equivalent to a kilowatt-hour (kWh) of electricity in Jordan (435 g of CO 2 e) are considered [59]. The emissions factor is based on the current electricity generation mix, primarily comprising natural gas and oil, with growing prospects for renewable sources like solar and wind power.…”

Section: Environmental Viabilitymentioning

confidence: 99%

Enhancing Energy Efficiency in Buildings through PCM Integration: A Study across Different Climatic Regions

Jaradat,

Al Majali,

Bendea

et al. 2023

Buildings

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In the quest for sustainable and energy-efficient building solutions, the incorporation of phase change materials (PCMs) into building envelopes emerges as a groundbreaking strategy. PCMs, renowned for storing and releasing thermal energy during phase transitions, stand as a promising avenue to curtail energy consumption while enhancing thermal performance. This study rigorously explores the potential energy savings and thermal comfort benefits achievable through PCM integration into building envelopes. Multiple energy simulations are conducted on a residential building model in diverse locations, including Irbid, Amman, and Aqaba in Jordan, and the city of Oradea in Romania, utilizing the EnergyPlus simulation tool embedded in DesignBuilder software v7.0.2.006. The results reveal that BioPCM®, derived from renewable biomass, significantly elevates thermal performance owing to its heightened latent heat of fusion. Optimal outcomes materialize with a PCM melting point of 23 °C, a configuration closer to the interior surface, and a thickness of 37.1 mm. The study underscores the superior performance in moderate climates (Irbid and Amman) compared to hot-dry climates (Aqaba) and cold-wet climates (Oradea, Romania). Financially and environmentally, incorporating PCM in Amman demonstrates potential annual energy savings of 5476.14 kWh, translating to a cost reduction of 1150 USD/year, and a decrease in GHG emissions by 2382.31 kgCO2eq. The estimated payback period for PCM incorporation in external walls is four years, robustly emphasizing the feasibility and multifaceted benefits of this energy-efficient solution.

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Section: Environmental Viabilitymentioning

confidence: 99%

Enhancing Energy Efficiency in Buildings through PCM Integration: A Study across Different Climatic Regions

Jaradat,

Al Majali,

Bendea

et al. 2023

Buildings

Self Cite

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“…The current solutions include both cultural practices such as precise watering, adequate place spacing, and weed controlling and passive and active ventilation methods. − Passive ventilation replaces the high-humid inside air with the low-humid outside air by opening and closing the glazing manually, facing problems of time-consuming, labor-intensive, and operator-dependent . Active ways for humidity control include heat pump, , desiccants, − and heat exchangers. , Heat pumps have been reported to be effective as they condense the moisture in the air with evaporator coils. However, it costs nearly 64% of the initial capital of the greenhouse .…”

Section: Introductionmentioning

confidence: 99%

Smart Glazing for Energy- and Cost-Efficient Greenhouse Humidity Regulation

Weng,

Khater,

Paley

et al. 2024

ACS Sustainable Chem. Eng.

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Global food shortage demands significant progress in crop production. Greenhouses offer a solution for higher crop production by providing a controllable environment. Excess levels of humidity, however, encourage pests and diseases, drastically reducing crop yields. Traditional humidity control methods for greenhouses are expensive and energy-intensive. In addition to this, nonbiodegradable plastic covers cause massive white pollution. To tackle these concerns, we present smart glazing and sensors for greenhouse humidity regulation through both passive and active paths. We created biodegradable humidity-sensitive films by blending poly(ethylene glycol) (PEG) with cellulose acetate (CA). PEG/CA covers can automatically open for air circulation at high humidity, successfully demonstrating repeatable greenhouse humidity regulation to as low as 60% relative humidity. PEG/CA-based humidity sensors can actively accelerate air circulation and humidity reduction with repeated cycles at an even higher efficiency. Overall, our research introduces a low-cost, all-in-one, sustainable, and environmentally conscious solution for addressing the greenhouse humidity control challenges. Approximately, this solution can potentially achieve annual energy savings of up to 56.6 GWh for the U.S. if fully applied.

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