OLJ  March 2023 27(1)

Rice, Mary

doi:10.24059/olj.v27i1.3887

Cited by 10 publications

(12 citation statements)

References 601 publications

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“…A total of three manufacturers provide humidity data for the operating points. For these specifications, the relative humidity ranges from 31 to 49% [33] (p. 3), [34] (pp. 14,16,[18][19], [35] (p. 7), [36] (p. 10), [37] (p. 3), [38] (p. 3).…”

Section: Discussionmentioning

confidence: 99%

“…The data sources include websites, technical documentation, product brochures, operating and maintenance manuals, and other official information sources. JAEGGI Hybridtechnologie AG 1 Re-cooling systems in the cooling circuit, presentation, evaluation, calculation of economic efficiency-Technical article [34] JAEGGI Hybridtechnologie AG 1 Operating cost reduction in the data center-Presentation [113] JAEGGI Hybridtechnologie AG 1 Innovative and sustainable cooling with hybrid or adiabatic dry coolers-Technical article [114] JAEGGI Hybridtechnologie AG 1 ADC-Product information [115] JAEGGI Hybridtechnologie AG 1 HTK-Product information [116] JAEGGI Hybridtechnologie AG 1 Data center cooling with hybrid coolers-Technical article [33] JAEGGI Hybridtechnologie AG 1 HTK-SE-Product information [36] JAEGGI Hybridtechnologie AG 1 Efficient cooling of data centers with hybrid dry coolers-Technical article [117] JAEGGI Hybridtechnologie AG 1 Phone call on the design and energetic evaluation of cooling towers [118] Kaltra Innovativtechnik GmbH Bora-Product catalog [38] Kelvion Holding GmbH Phone call on the design and electricity consumption of hybrid cooling towers [119] Kelvion Holding GmbH Adiabatic Systems-Customer presentation [ V-Tower-Product brochure [153] 1 Güntner-Group.…”

Section: Appendix Amentioning

confidence: 99%

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Free Cooling for Saving Energy: Technical Market Analysis of Dry, Wet, and Hybrid Cooling Based on Manufacturer Data

2023

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In light of energy and climate targets, free cooling unlocks a major resource-saving potential compared to refrigeration. To fill the knowledge gap in quantifying this saving potential, we aim to specify the physical and technical limits of cooling tower applications and provide comprehensive data on electricity and water consumption. For this purpose, we distinguish six types of package-type cooling towers: dry, closed wet, open wet, and three types of hybrid systems; defining one generalized system for all types enables comparability. Subsequently, we collect data from 6730 system models of 27 manufacturers, using technical information from data sheets and additional material. The analysis reveals, for example, specific ranges of electricity demand from 0.01 to 0.06 kWel/kWth and highlights influencing factors, including type and operating point. Refrigeration systems would consume approximately ten times more electricity per cooling capacity. Furthermore, the evaluation demonstrates the functional limits, for example, the minimum cooling temperatures. Minimum outlet temperatures using evaporative cooling are up to 16 K lower than for dry cooling. The collected data have crucial implications for designing and optimizing cooling systems, including potential analysis of free cooling and efficiency assessment of cooling towers in operation.

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Section: Discussionmentioning

confidence: 99%

Section: Appendix Amentioning

confidence: 99%

Free Cooling for Saving Energy: Technical Market Analysis of Dry, Wet, and Hybrid Cooling Based on Manufacturer Data

2023

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“…However, from an economic perspective, the cost of these materials makes them not economically advantageous for practical applications; e.g., the price of 5 g of carbon nanotubes can range from GBP 59 to 259 [40]. Similarly, graphene and modified diamond are also expensive and thus less suitable for large-scale applications [41,42]. On the other hand, the Cu and Cu-based materials reported in this manuscript have been selected because they are readily available, inexpensive, and abundant.…”

Section: Copper-based Catalysts For Co 2 Rrmentioning

confidence: 99%

Cutting-Edge Electrocatalysts for CO2RR

2023

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A world-wide growing concern relates to the rising levels of CO2 in the atmosphere that leads to devastating consequences for our environment. In addition to reducing emissions, one alternative strategy is the conversion of CO2 (via the CO2 Reduction Reaction, or CO2RR) into added-value chemicals, such as CO, HCOOH, C2H5OH, CH4, and more. Although this strategy is currently not economically feasible due to the high stability of the CO2 molecule, significant progress has been made to optimize this electrochemical conversion, especially in terms of finding a performing catalyst. In fact, many noble and non-noble metal-based systems have been investigated but achieving CO2 conversion with high faradaic efficiency (FE), high selectivity towards specific products (e.g., hydrocarbons), and maintaining long-term stability is still challenging. The situation is also aggravated by a concomitant hydrogen production reaction (HER), together with the cost and/or scarcity of some catalysts. This review aims to present, among the most recent studies, some of the best-performing catalysts for CO2RR. By discussing the reasons behind their performances, and relating them to their composition and structural features, some key qualities for an “optimal catalyst” can be defined, which, in turn, will help render the conversion of CO2 a practical, as well as economically feasible process.

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“…Constructed variable with data from SCE [92] NON_ECO-HOUSES "Non-Eco-Friendly" Houses. This variable represents the total number of houses that have received low energy efficiency certificate ratings, such as C, D, E, and F. These ratings indicate that the houses use more energy and are less environmentally friendly than houses with higher ratings.…”

Section: Below)mentioning

confidence: 99%

“…Constructed variable with data from SCE [92] Energies 2023, 16, x FOR PEER REVIEW 13 of 36 ECO_HOUSES "Eco-Friendly" Houses. This variable represents the total number of houses that have received high energy efficiency certificate ratings, such as A+, A, B, and B−.…”

Section: Below)mentioning

confidence: 99%

Building a Sustainable Future: How Eco-Friendly Homes Are Driving Local Economic Development in Lisbon Metropolitan Area

et al. 2023

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This article explored the impact of eco-friendly houses on economic development in the Lisbon metropolitan area. The study analyzed data from 18 municipalities between 2014 and 2020 using regression analysis with ordinary least squares (OLS) and fixed effects. The results indicate that national policies promoting residential energy efficiency positively impact economic development. Policies like subsidies, loans, and tax relief encourage homeowners to invest in energy-efficient technologies, boosting household disposable income and contributing to economic growth. The study found that an increase in the number of new constructions positively impacts economic development, leading to job creation and increased demand for construction materials and services. Additionally, growing eco-friendly houses can reduce energy consumption, lowering energy costs for homeowners and businesses and ultimately stimulating economic growth. In contrast, increasing the number of non-eco-friendly houses can have negative economic impacts. A robustness check using the method of moments quantile regression (MM-QR) confirmed the results from OLS with fixed effects, providing additional evidence supporting the robustness of the results.

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OLJ March 2023 27(1)

Abstract: Full Issue of Vol. 27 No. 1

Cited by 10 publications

References 601 publications

Free Cooling for Saving Energy: Technical Market Analysis of Dry, Wet, and Hybrid Cooling Based on Manufacturer Data

Free Cooling for Saving Energy: Technical Market Analysis of Dry, Wet, and Hybrid Cooling Based on Manufacturer Data

Cutting-Edge Electrocatalysts for CO2RR

Building a Sustainable Future: How Eco-Friendly Homes Are Driving Local Economic Development in Lisbon Metropolitan Area

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