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Hybrid atmospheric water generator

A generator, atmospheric technology, applied in key feature areas of the subject, that addresses issues such as water production and performance degradation

Inactive Publication Date: 2018-02-23
SIMON FRASER UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main challenge with existing AWG units is that in arid regions their water production and performance drop dramatically due to the significantly lower dew point temperature and moisture content in the ambient air

Method used

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Examples

Experimental program
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Effect test

example 1

[0119] Example 1: Performance of a Commercial AWG

[0120] We tested and simulated the performance of two highly efficient existing AWG units using different operating conditions. Two typical residential-scale and commercial-scale AWG units on the market have been thoroughly studied. The water generation rate and power consumption of the units were measured to calculate their performance using various measurement equipment including temperature and humidity sensors, digital clamp meters and anemometers. The residential installation is linked to an environmental chamber at the Laboratory for Alternative Energy Conversion (LAEC) at Simon Fraser University in British Columbia, Canada, to simulate a variety of realistic operating conditions. Environmental chambers can provide many different temperatures and humidity at the inlet of a residential AWG unit, allowing us to evaluate the performance of the unit under different operating conditions. Our measurement results are shown...

example 2

[0129] Example 2: Prototype HAWG according to embodiments disclosed herein

[0130] Build the HAWG according to the published parameters. Figure 8 is a 3D rendering of the design used for a representative HAWG, and Figure 9 is a photograph of an exemplary working packed bed HAWG according to our design, which is a prototype including an adsorption / desorption packed bed and a VCR unit. Because the VCR uses an electric chiller, this prototype would be classified as an EHAWG according to the terminology developed in this paper.

[0131] In an exemplary HAWG, too, air is blown through the system with a high efficiency variable speed fan connected to the inlet of the adsorption / desorption bed and the system is controlled by a control panel. During the adsorption step, the VCR is off while the fan blows air through the bed. In this step, the air flow is discharged from the bottom outlet (such as Figure 11 shown) and does not pass through the VCR unit. After the bed is comp...

example 3

[0134] Example 3: Performance of an Exemplary HAWG According to Embodiments Disclosed herein

[0135] We tested against various environmental conditions (using an environmental chamber) such as Figure 9 Performance of the prototype HAWG device shown, which exhibits significantly higher efficiency and water generation rate compared to existing AWG devices. Table 4 shows the performance comparison of a typical high-efficiency AWG device (manufactured by Dew Point, see previous section) on the market and a HAWG device under the same environmental conditions. For this comparison, the average ambient temperature and humidity in the British Columbia summer were selected. It should be pointed out that existing AWG devices cannot generate water in arid regions; however, since the air is always preconditioned before entering the VCR device, the performance of our HAWG does not depend on the environmental conditions. In other words, unlike existing AWG devices that do not work in d...

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PUM

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Abstract

A hybrid atmospheric water generator (HAWG) utilizing, in certain embodiments, a core atmospheric water generator (105) and a preconditioning unit (110) to increase humidity of air prior to water condensation. The core atmospheric unit comprises a condensing unit (106) having a water condensing heat exchanger (107) coupled to source of cooling (109). The preconditioning unit (110) includes a heatexchanger (112) and a sorption unit (114) configured to store moisture for release when air is passed through or near the sorption unit (114). The heat exchanger (112) is used to increase the temperature of air moving into or through the preconditioning unit (110) in order to increase the amount of moisture the air is able to store. The preconditioning unit enables the generation of more water perenergy unit expended and / or generating water from ambient air under conditions in which traditional atmospheric water generators cannot function.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Patent Application No. 62 / 165,728, filed May 22, 2015, and US Patent Application No. 62 / 265,880, filed December 10, 2015, the disclosures of which are incorporated herein by reference in their entirety. Background technique [0003] Globally, human water consumption is increasing dramatically every year due to population growth, urbanization, and industrialization. Freshwater is used for agriculture, energy production, industrial manufacturing, and human and ecosystem needs. Among water-consuming sectors, the residential sector is more sensitive to the quality and availability of clean water. Changes in global water withdrawals by the domestic sector between 1950 and 2010 show that global domestic water use has grown by a factor of 3.7, corresponding to an average annual growth rate of 2.2% over the past 60 years. [0004] The distribution of global freshwater is extremely une...

Claims

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Application Information

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IPC IPC(8): E03B3/28B01D5/00C02F1/44C02F1/68E03B3/00C02F1/04
CPCB01D5/006B01D5/0075E03B3/28Y02A20/00B01D53/0407B01D53/06B01D53/261B01D53/265B01D2257/80F24F3/1405F24F2003/1446
Inventor M·巴哈拉米F·巴盖里
Owner SIMON FRASER UNIVERSITY
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